{"pageNumber":"183","pageRowStart":"4550","pageSize":"25","recordCount":10951,"records":[{"id":70034604,"text":"70034604 - 2011 - Probing magnetic bottom and crustal temperature variations along the Red Sea margin of Egypt","interactions":[],"lastModifiedDate":"2021-04-15T12:01:31.957985","indexId":"70034604","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3525,"text":"Tectonophysics","active":true,"publicationSubtype":{"id":10}},"title":"Probing magnetic bottom and crustal temperature variations along the Red Sea margin of Egypt","docAbstract":"<p><span>Over 50 magnetic bottom depths derived from spectra of magnetic anomalies in Eastern Egypt along the Red Sea margin show variable magnetic bottoms ranging from 10 to 34</span><span>&nbsp;</span><span>km. The deep magnetic bottoms correspond more closely to the Moho depth in the region, and not the depth of 580</span><span>&nbsp;</span><span>°C, which lies significantly deeper on the steady state geotherms. These results support the idea of Wasilewski and coworkers that the Moho is a magnetic boundary in continental regions. Reduced-to-pole magnetic highs correspond to areas of Younger Granites that were emplaced toward the end of the Precambrian. Other crystalline Precambrian units formed earlier during the closure of ocean basins are not strongly magnetic. In the north, magnetic bottoms are shallow (10–15</span><span>&nbsp;</span><span>km) in regions with a high proportion of these Younger Granites. In the south, the shoaling of the magnetic bottom associated with the Younger Granites appears to be restricted to the Aswan and Ras Banas regions. Complexity in the variation of magnetic bottom depths may arise due to a combination of factors: i) regions of Younger (Precambrian) Granites with high magnetite content in the upper crust, leaving behind low Curie temperature titanomagnetite components in the middle and lower crust, ii) rise in the depth of 580</span><span>&nbsp;</span><span>°C isotherm where the crust may have been heated due to initiation of intense magmatism at the time of the Red Sea rifting (~</span><span>&nbsp;</span><span>20</span><span>&nbsp;</span><span>Ma), and iii) the contrast of the above two factors with respect to the neighboring regions where the Moho and/or Curie temperature truncates lithospheric ferromagnetism. Estimates of fractal and centroid magnetic bottoms in the oceanic regions of the Red Sea are significantly below the Moho in places suggesting that oceanic uppermost mantle may be serpentinized to the depth of 15–30</span><span>&nbsp;</span><span>km in those regions.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.tecto.2011.08.002","issn":"00401951","usgsCitation":"Ravat, D., Salem, A., Abdelaziz, A., Elawadi, E., and Morgan, P., 2011, Probing magnetic bottom and crustal temperature variations along the Red Sea margin of Egypt: Tectonophysics, v. 510, no. 3-4, p. 337-344, https://doi.org/10.1016/j.tecto.2011.08.002.","productDescription":"8 p.","startPage":"337","endPage":"344","numberOfPages":"8","costCenters":[],"links":[{"id":243601,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Egypt","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"Polygon\",\"coordinates\":[[[34.9226,29.50133],[34.64174,29.09942],[34.42655,28.34399],[34.15451,27.8233],[33.92136,27.6487],[33.58811,27.97136],[33.13676,28.41765],[32.42323,29.85108],[32.32046,29.76043],[32.73482,28.70523],[33.34876,27.69989],[34.10455,26.14227],[34.47387,25.59856],[34.79507,25.03375],[35.69241,23.92671],[35.49372,23.75237],[35.52598,23.10244],[36.69069,22.20485],[36.86623,22],[32.9,22],[29.02,22],[25,22],[25,25.6825],[25,29.23865],[24.70007,30.04419],[24.95762,30.6616],[24.80287,31.08929],[25.16482,31.56915],[26.49533,31.58568],[27.45762,31.32126],[28.45048,31.02577],[28.91353,30.87005],[29.68342,31.18686],[30.09503,31.4734],[30.97693,31.55586],[31.68796,31.4296],[31.96041,30.9336],[32.19247,31.26034],[32.99392,31.02407],[33.7734,30.96746],[34.26544,31.21936],[34.9226,29.50133]]]},\"properties\":{\"name\":\"Egypt\"}}]}","volume":"510","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a8ccbe4b0c8380cd7e8bc","contributors":{"authors":[{"text":"Ravat, D.","contributorId":102971,"corporation":false,"usgs":true,"family":"Ravat","given":"D.","email":"","affiliations":[],"preferred":false,"id":446617,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Salem, A.","contributorId":47604,"corporation":false,"usgs":true,"family":"Salem","given":"A.","email":"","affiliations":[],"preferred":false,"id":446615,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Abdelaziz, A.M.S.","contributorId":101480,"corporation":false,"usgs":true,"family":"Abdelaziz","given":"A.M.S.","email":"","affiliations":[],"preferred":false,"id":446616,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Elawadi, E.","contributorId":40694,"corporation":false,"usgs":true,"family":"Elawadi","given":"E.","email":"","affiliations":[],"preferred":false,"id":446614,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Morgan, P.","contributorId":34096,"corporation":false,"usgs":false,"family":"Morgan","given":"P.","email":"","affiliations":[],"preferred":false,"id":446613,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70034617,"text":"70034617 - 2011 - A Miocene river in northern Arizona and its implications for the Colorado River and Grand Canyon","interactions":[],"lastModifiedDate":"2018-11-01T14:36:44","indexId":"70034617","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1728,"text":"GSA Today","active":true,"publicationSubtype":{"id":10}},"title":"A Miocene river in northern Arizona and its implications for the Colorado River and Grand Canyon","docAbstract":"The southwesterly course of the pre–late Miocene Crooked Ridge River can be traced continuously for 48 km and discontinuously for 91 km in northern Arizona. It is visible today in inverted relief. Pebbles in the river gravel came from at least as far northeast as the San Juan Mountains. The river valley was carved out of easily eroded Jurassic and Cretaceous rocks, whose debris overloaded the river with abundant detritus, possibly steepening the gradient. After the river became inactive, the regional drainage network was rearranged twice, and the Four Corners region was lowered by erosion 1–2 km. The river provides constraints on the history of the Colorado River and Grand Canyon; its continuation into lakes in Arizona or Utah is unlikely, as is integration of the Colorado River through Grand Canyon by lake spillover. The downstream course of the river was probably across the Kaibab Arch in a valley roughly coincident with the present eastern Grand Canyon.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"GSA Today","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Geological Society of America","publisherLocation":"Boulder, CO","doi":"10.1130/G119A.1","issn":"10525173","usgsCitation":"Lucchitta, I., Holm, R.F., and Lucchitta, B.K., 2011, A Miocene river in northern Arizona and its implications for the Colorado River and Grand Canyon: GSA Today, v. 21, no. 10, p. 4-10, https://doi.org/10.1130/G119A.1.","productDescription":"7 p.","startPage":"4","endPage":"10","costCenters":[{"id":128,"text":"Arizona Water Science Center","active":true,"usgs":true},{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"links":[{"id":215950,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1130/G119A.1"},{"id":243787,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Arizona","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -114.82,31.33 ], [ -114.82,37.0 ], [ -109.0,37.0 ], [ -109.0,31.33 ], [ -114.82,31.33 ] ] ] } } ] }","volume":"21","issue":"10","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e468e4b0c8380cd4663a","contributors":{"authors":[{"text":"Lucchitta, Ivo","contributorId":94291,"corporation":false,"usgs":true,"family":"Lucchitta","given":"Ivo","email":"","affiliations":[],"preferred":false,"id":446685,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Holm, Richard F.","contributorId":8009,"corporation":false,"usgs":true,"family":"Holm","given":"Richard","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":446684,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lucchitta, Baerbel K. blucchitta@usgs.gov","contributorId":3649,"corporation":false,"usgs":true,"family":"Lucchitta","given":"Baerbel","email":"blucchitta@usgs.gov","middleInitial":"K.","affiliations":[],"preferred":true,"id":446683,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70034633,"text":"70034633 - 2011 - Sources and Delivery of Nutrients to the Northwestern Gulf of Mexico from Streams in the South-Central United States","interactions":[],"lastModifiedDate":"2021-04-14T17:22:26.259382","indexId":"70034633","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2529,"text":"Journal of the American Water Resources Association","active":true,"publicationSubtype":{"id":10}},"title":"Sources and Delivery of Nutrients to the Northwestern Gulf of Mexico from Streams in the South-Central United States","docAbstract":"<p><span>SPAtially Referenced Regressions On Watershed attributes (SPARROW) models were developed to estimate nutrient inputs [total nitrogen (TN) and total phosphorus (TP)] to the northwestern part of the Gulf of Mexico from streams in the South‐Central United States (U.S.). This area included drainages of the Lower Mississippi, Arkansas‐White‐Red, and Texas‐Gulf hydrologic regions. The models were standardized to reflect nutrient sources and stream conditions during 2002. Model predictions of nutrient loads (mass per time) and yields (mass per area per time) generally were greatest in streams in the eastern part of the region and along reaches near the Texas and Louisiana shoreline. The Mississippi River and Atchafalaya River watersheds, which drain nearly two‐thirds of the conterminous U.S., delivered the largest nutrient loads to the Gulf of Mexico, as expected. However, the three largest delivered TN yields were from the Trinity River/Galveston Bay, Calcasieu River, and Aransas River watersheds, while the three largest delivered TP yields were from the Calcasieu River, Mermentau River, and Trinity River/Galveston Bay watersheds. Model output indicated that the three largest sources of nitrogen from the region were atmospheric deposition (42%), commercial fertilizer (20%), and livestock manure (unconfined, 17%). The three largest sources of phosphorus were commercial fertilizer (28%), urban runoff (23%), and livestock manure (confined and unconfined, 23%).</span></p>","language":"English","publisher":"Wiley","doi":"10.1111/j.1752-1688.2011.00583.x","issn":"1093474X","usgsCitation":"Rebich, R.A., Houston, N.A., Mize, S.V., Pearson, D., Ging, P.B., and Evan, H.C., 2011, Sources and Delivery of Nutrients to the Northwestern Gulf of Mexico from Streams in the South-Central United States: Journal of the American Water Resources Association, v. 47, no. 5, p. 1061-1086, https://doi.org/10.1111/j.1752-1688.2011.00583.x.","productDescription":"26 p.","startPage":"1061","endPage":"1086","costCenters":[{"id":583,"text":"Texas Water Science Center","active":true,"usgs":true}],"links":[{"id":475372,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1111/j.1752-1688.2011.00583.x","text":"Publisher Index Page"},{"id":243543,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215721,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1752-1688.2011.00583.x"}],"country":"United States","state":"Texas, Oklahoma, Arkansas, Louisiana, Missouri, Kansas, Mississippi, Colorado, Missouri, Tennessee","otherGeospatial":"South-Central United States","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -103.0078125,\n              32.175612478499325\n            ],\n            [\n              -101.337890625,\n              30.751277776257812\n            ],\n            [\n              -99.49218749999999,\n              30.221101852485987\n            ],\n            [\n              -98.87695312499999,\n              28.22697003891834\n            ],\n            [\n              -98.61328125,\n              26.194876675795218\n            ],\n            [\n              -97.294921875,\n              26.03704188651584\n            ],\n            [\n              -96.767578125,\n              28.459033019728043\n            ],\n            [\n              -95.625,\n              28.69058765425071\n            ],\n            [\n              -94.130859375,\n              29.53522956294847\n            ],\n            [\n              -92.98828125,\n              29.611670115197377\n            ],\n            [\n              -90,\n              28.998531814051795\n            ],\n            [\n              -89.20898437499999,\n              30.221101852485987\n            ],\n            [\n              -91.0546875,\n              31.27855085894653\n            ],\n            [\n              -90.439453125,\n              33.578014746143985\n            ],\n            [\n              -89.12109375,\n              34.88593094075317\n            ],\n            [\n              -89.20898437499999,\n              36.527294814546245\n            ],\n            [\n              -91.0546875,\n              37.09023980307208\n            ],\n            [\n              -93.251953125,\n              37.23032838760387\n            ],\n            [\n              -95.2734375,\n              38.20365531807149\n            ],\n            [\n              -105.64453124999999,\n              38.47939467327645\n            ],\n            [\n              -105.29296874999999,\n              37.579412513438385\n            ],\n            [\n              -104.32617187499999,\n              36.31512514748051\n            ],\n            [\n              -103.88671875,\n              34.161818161230386\n            ],\n            [\n              -103.0078125,\n              32.175612478499325\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"47","issue":"5","noUsgsAuthors":false,"publicationDate":"2011-08-22","publicationStatus":"PW","scienceBaseUri":"505b934ce4b08c986b31a40f","contributors":{"authors":[{"text":"Rebich, Richard A. 0000-0003-4256-7171 rarebich@usgs.gov","orcid":"https://orcid.org/0000-0003-4256-7171","contributorId":2315,"corporation":false,"usgs":true,"family":"Rebich","given":"Richard","email":"rarebich@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":true,"id":446773,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Houston, Natalie A. 0000-0002-6071-4545 nhouston@usgs.gov","orcid":"https://orcid.org/0000-0002-6071-4545","contributorId":1682,"corporation":false,"usgs":true,"family":"Houston","given":"Natalie","email":"nhouston@usgs.gov","middleInitial":"A.","affiliations":[{"id":583,"text":"Texas Water Science Center","active":true,"usgs":true}],"preferred":true,"id":446774,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mize, Scott V. 0000-0001-6751-5568 svmize@usgs.gov","orcid":"https://orcid.org/0000-0001-6751-5568","contributorId":2997,"corporation":false,"usgs":true,"family":"Mize","given":"Scott","email":"svmize@usgs.gov","middleInitial":"V.","affiliations":[{"id":369,"text":"Louisiana Water Science Center","active":true,"usgs":true}],"preferred":true,"id":446778,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Pearson, Daniel 0000-0001-7808-8311 dpearson@usgs.gov","orcid":"https://orcid.org/0000-0001-7808-8311","contributorId":201255,"corporation":false,"usgs":true,"family":"Pearson","given":"Daniel","email":"dpearson@usgs.gov","affiliations":[],"preferred":true,"id":446775,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Ging, Patricia B. 0000-0001-5491-8448 pbging@usgs.gov","orcid":"https://orcid.org/0000-0001-5491-8448","contributorId":1788,"corporation":false,"usgs":true,"family":"Ging","given":"Patricia","email":"pbging@usgs.gov","middleInitial":"B.","affiliations":[{"id":583,"text":"Texas Water Science Center","active":true,"usgs":true}],"preferred":true,"id":446776,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Evan, Hornig C.","contributorId":60465,"corporation":false,"usgs":true,"family":"Evan","given":"Hornig","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":446777,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70034757,"text":"70034757 - 2011 - Infrasound from the 2007 fissure eruptions of Kīlauea Volcano, Hawai'i","interactions":[],"lastModifiedDate":"2018-10-30T09:37:06","indexId":"70034757","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1807,"text":"Geophysical Research Letters","active":true,"publicationSubtype":{"id":10}},"title":"Infrasound from the 2007 fissure eruptions of Kīlauea Volcano, Hawai'i","docAbstract":"Varied acoustic signals were recorded at Kīlauea Volcano in mid-2007, coincident with dramatic changes in the volcano's activity. Prior to this time period, Pu'u 'Ō'ō crater produced near-continuous infrasonic tremor and was the primary source of degassing and lava effusion at Kīlauea. Collapse and draining of Pu'u 'Ō'ō  crater in mid-June produced impulsive infrasonic signals and fluctuations in infrasonic tremor. Fissure eruptions on 19 June and 21 July were clearly located spatially and temporally using infrasound arrays. The 19 June eruption from a fissure approximately mid-way between Kīlauea's summit and Pu'u 'O'o produced infrasound for ~30 minutes-the only observed geophysical signal associated with the fissure opening. The infrasound signal from the 21 July eruption just east of Pu'u 'Ō'ō  shows a clear azimuthal progression over time, indicative of fissure propagation over 12.9 hours. The total fissure propagation rate is relatively slow at 164 m/hr, although the fissure system ruptured discontinuously. Individual fissure rupture times are estimated using the acoustic data combined with visual observations.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geophysical Research Letters","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1029/2010GL046422","issn":"00948276","usgsCitation":"Fee, D., Garces, M., Orr, T., and Poland, M.P., 2011, Infrasound from the 2007 fissure eruptions of Kīlauea Volcano, Hawai'i: Geophysical Research Letters, v. 38, 5 p.; L06309, https://doi.org/10.1029/2010GL046422.","productDescription":"5 p.; L06309","costCenters":[{"id":336,"text":"Hawaiian Volcano Observatory","active":false,"usgs":true}],"links":[{"id":475169,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2010gl046422","text":"Publisher Index Page"},{"id":215635,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2010GL046422"},{"id":243452,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawai'i","otherGeospatial":"Kilauea Volcano","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -155.05,19.58 ], [ -155.05,19.76 ], [ -155.03,19.76 ], [ -155.03,19.58 ], [ -155.05,19.58 ] ] ] } } ] }","volume":"38","noUsgsAuthors":false,"publicationDate":"2011-03-30","publicationStatus":"PW","scienceBaseUri":"505a3bcae4b0c8380cd62839","contributors":{"authors":[{"text":"Fee, D.","contributorId":23353,"corporation":false,"usgs":true,"family":"Fee","given":"D.","email":"","affiliations":[],"preferred":false,"id":447441,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Garces, M.","contributorId":42406,"corporation":false,"usgs":true,"family":"Garces","given":"M.","email":"","affiliations":[],"preferred":false,"id":447443,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Orr, Tim R. 0000-0003-1157-7588","orcid":"https://orcid.org/0000-0003-1157-7588","contributorId":26365,"corporation":false,"usgs":true,"family":"Orr","given":"Tim R.","affiliations":[{"id":336,"text":"Hawaiian Volcano Observatory","active":false,"usgs":true}],"preferred":true,"id":447442,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Poland, Michael P. 0000-0001-5240-6123 mpoland@usgs.gov","orcid":"https://orcid.org/0000-0001-5240-6123","contributorId":146118,"corporation":false,"usgs":true,"family":"Poland","given":"Michael","email":"mpoland@usgs.gov","middleInitial":"P.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":447444,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70192773,"text":"70192773 - 2011 - Coal resources for part of the Wilcox group (Paleocene-Eocene), northeast Texas","interactions":[],"lastModifiedDate":"2020-10-22T16:54:42.754696","indexId":"70192773","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"seriesTitle":{"id":5382,"text":"AAPG Studies in Geology","active":false,"publicationSubtype":{"id":24}},"chapter":"8","title":"Coal resources for part of the Wilcox group (Paleocene-Eocene), northeast Texas","docAbstract":"<p>The Wilcox Group of northeast Texas contains shallow (less than 500 ft) coal deposits that are mined for use in mine-mouth electric power generating plants. The coal deposits, which are lignite in apparent rank (Pierce et al., 2011), are separated from similar shallow coal deposits in the Sabine uplift area by the East Texas Basin (Figure 1). The coal zones and associated strata in the northeast assessment area generally dip to the south and southeast at 28 or less toward the axis of the East Texas Basin. The northeast Texas resource assessment area includes parts of nine counties (Figure 2).</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Geologic assessment of coal in the Gulf of Mexico coastal plain","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":"American Association of Petroleum Geologists","usgsCitation":"Warwick, P.D., Aubourg, C.E., Podwysocki, S.M., and Schultz, A.C., 2011, Coal resources for part of the Wilcox group (Paleocene-Eocene), northeast Texas, chap. 8 <i>of</i> Geologic assessment of coal in the Gulf of Mexico coastal plain: AAPG Studies in Geology, v. 62, p. 142-178.","productDescription":"37 p.","startPage":"142","endPage":"178","ipdsId":"IP-020035","costCenters":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"links":[{"id":350918,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://archives.datapages.com/data/specpubs/discovery14/data/001/001001/142_aapg-sp0010142.htm"},{"id":350919,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Texas","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"MultiPolygon\",\"coordinates\":[[[[-97.240849,26.411504],[-97.276425,26.521729],[-97.31073,26.556558],[-97.345822,26.700589],[-97.370438,26.723896],[-97.368343,26.795649],[-97.387459,26.820789],[-97.390078,27.156512],[-97.359963,27.304732],[-97.361796,27.359988],[-97.317277,27.46369],[-97.236882,27.598293],[-97.231383,27.632336],[-97.214099,27.631551],[-97.200743,27.650144],[-97.203474,27.684533],[-97.103326,27.789068],[-97.098874,27.82285],[-97.134489,27.825206],[-97.056713,27.842294],[-96.985745,27.954048],[-96.967807,28.020041],[-96.952618,28.01644],[-96.906004,28.076147],[-96.886233,28.084396],[-96.879424,28.131402],[-96.84538,28.108881],[-96.83003,28.111842],[-96.81042,28.126034],[-96.816443,28.174808],[-96.791958,28.188687],[-96.703838,28.198246],[-96.702659,28.211208],[-96.662462,28.227314],[-96.651856,28.251275],[-96.592934,28.296972],[-96.450998,28.337039],[-96.403206,28.371475],[-96.397846,28.343513],[-96.4137,28.327343],[-96.547774,28.270798],[-96.694666,28.18212],[-96.849624,28.064939],[-96.966996,27.950531],[-97.166682,27.676583],[-97.30447,27.407734],[-97.350398,27.268105],[-97.370941,27.161166],[-97.37913,27.047996],[-97.370731,26.909706],[-97.333028,26.736479],[-97.194644,26.306513],[-97.154271,26.066841],[-97.169842,26.077853],[-97.194458,26.27164],[-97.240849,26.411504]]],[[[-94.886539,29.510724],[-94.894747,29.52697],[-94.87675,29.507922],[-94.886539,29.510724]]],[[[-97.868235,26.056656],[-97.88653,26.066339],[-97.967358,26.051718],[-97.981335,26.067182],[-98.028759,26.06647],[-98.039239,26.041275],[-98.070021,26.047992],[-98.084755,26.070808],[-98.091038,26.059169],[-98.105505,26.067537],[-98.146622,26.049412],[-98.177897,26.074672],[-98.197046,26.056153],[-98.220673,26.076467],[-98.248806,26.073101],[-98.264514,26.085507],[-98.277218,26.098802],[-98.265698,26.12037],[-98.296195,26.120321],[-98.302979,26.11005],[-98.323828,26.121249],[-98.336837,26.166432],[-98.354645,26.15304],[-98.386694,26.157872],[-98.404433,26.182564],[-98.442536,26.199151],[-98.450976,26.219904],[-98.496684,26.212853],[-98.543852,26.234492],[-98.576188,26.235221],[-98.599154,26.257612],[-98.669397,26.23632],[-98.681167,26.26271],[-98.745272,26.303096],[-98.755242,26.3251],[-98.789822,26.331575],[-98.807348,26.369421],[-98.890965,26.357569],[-98.921277,26.381426],[-98.950186,26.380303],[-98.967587,26.398266],[-99.008003,26.395459],[-99.032316,26.412082],[-99.082002,26.39651],[-99.110855,26.426278],[-99.091635,26.476977],[-99.127782,26.525199],[-99.166742,26.536079],[-99.178064,26.620547],[-99.209948,26.693938],[-99.208907,26.724761],[-99.240023,26.745851],[-99.242444,26.788262],[-99.268613,26.843213],[-99.295146,26.86544],[-99.316753,26.865831],[-99.3289,26.879761],[-99.324684,26.915973],[-99.379149,26.93449],[-99.393748,26.96073],[-99.377312,26.973819],[-99.415476,27.01724],[-99.42938,27.010833],[-99.446524,27.023008],[-99.452316,27.062669],[-99.429209,27.090982],[-99.442123,27.106839],[-99.426348,27.176262],[-99.441549,27.24992],[-99.463309,27.268437],[-99.492407,27.264118],[-99.494604,27.303542],[-99.536443,27.312538],[-99.504837,27.338289],[-99.487521,27.412396],[-99.495104,27.451518],[-99.480419,27.481596],[-99.497519,27.500496],[-99.52582,27.496696],[-99.515978,27.572131],[-99.55495,27.614454],[-99.580006,27.602251],[-99.578099,27.619196],[-99.594038,27.638573],[-99.638929,27.626758],[-99.665948,27.635968],[-99.668942,27.659974],[-99.711511,27.658365],[-99.77074,27.732134],[-99.796342,27.735586],[-99.813086,27.773952],[-99.835127,27.762881],[-99.850877,27.793974],[-99.877677,27.799427],[-99.876003,27.837968],[-99.904385,27.875284],[-99.895828,27.904178],[-99.937142,27.940537],[-99.931812,27.980967],[-99.991447,27.99456],[-100.017914,28.064787],[-100.053123,28.08473],[-100.083393,28.144035],[-100.208059,28.190383],[-100.22363,28.235224],[-100.2462,28.234092],[-100.289384,28.273491],[-100.286471,28.312296],[-100.341869,28.384953],[-100.349586,28.402604],[-100.337797,28.44296],[-100.368288,28.477196],[-100.333814,28.499252],[-100.38886,28.515748],[-100.411414,28.551899],[-100.398385,28.584884],[-100.44732,28.609325],[-100.445529,28.637144],[-100.495863,28.658569],[-100.510055,28.690723],[-100.507613,28.740599],[-100.533017,28.76328],[-100.53583,28.805888],[-100.547324,28.825817],[-100.57051,28.826317],[-100.602054,28.901944],[-100.640568,28.914212],[-100.651512,28.943432],[-100.645894,28.986421],[-100.674656,29.099777],[-100.772649,29.168492],[-100.767059,29.195287],[-100.785521,29.228137],[-100.795681,29.22773],[-100.797671,29.246943],[-100.876049,29.279585],[-100.886842,29.307848],[-100.948972,29.347246],[-101.004207,29.364772],[-101.060151,29.458661],[-101.151877,29.477005],[-101.173821,29.514566],[-101.254895,29.520342],[-101.242023,29.592512],[-101.259127,29.607284],[-101.307332,29.587847],[-101.311219,29.648491],[-101.361756,29.657821],[-101.415402,29.756561],[-101.441059,29.753451],[-101.475269,29.780663],[-101.522695,29.759671],[-101.546797,29.796991],[-101.582562,29.771334],[-101.625958,29.771063],[-101.646418,29.754304],[-101.662453,29.77128],[-101.706636,29.762737],[-101.852604,29.801895],[-101.922585,29.790161],[-101.974548,29.810276],[-101.987539,29.801057],[-102.034759,29.804028],[-102.050044,29.78507],[-102.115682,29.79239],[-102.159601,29.814356],[-102.181894,29.846034],[-102.227553,29.843534],[-102.315389,29.87992],[-102.364542,29.845387],[-102.386678,29.76688],[-102.508313,29.783219],[-102.513381,29.76576],[-102.539417,29.751629],[-102.559343,29.760377],[-102.630151,29.734315],[-102.670971,29.741954],[-102.698347,29.695591],[-102.693466,29.676507],[-102.742031,29.632142],[-102.739991,29.599041],[-102.768341,29.594734],[-102.771429,29.548546],[-102.808692,29.522319],[-102.807327,29.494009],[-102.832539,29.433109],[-102.824564,29.399558],[-102.843021,29.357988],[-102.879534,29.353327],[-102.888328,29.291947],[-102.906296,29.260011],[-102.871347,29.241625],[-102.866846,29.225015],[-102.890064,29.208814],[-102.915866,29.215878],[-102.917805,29.190697],[-102.944911,29.18882],[-102.953475,29.176308],[-102.989432,29.183174],[-103.015028,29.12577],[-103.035683,29.103029],[-103.074407,29.088534],[-103.100266,29.0577],[-103.113922,28.988547],[-103.156646,28.972831],[-103.227801,28.991532],[-103.239109,28.981651],[-103.260308,28.989731],[-103.28119,28.982138],[-103.341463,29.041224],[-103.355428,29.021529],[-103.427754,29.042334],[-103.471265,29.073115],[-103.503236,29.11911],[-103.524613,29.120998],[-103.523384,29.133389],[-103.558679,29.154962],[-103.645635,29.159286],[-103.71377,29.185008],[-103.816642,29.270927],[-103.975235,29.296017],[-104.038282,29.320156],[-104.106467,29.373127],[-104.166563,29.399352],[-104.233487,29.492734],[-104.318074,29.527938],[-104.334811,29.519463],[-104.381041,29.543406],[-104.399591,29.572319],[-104.507568,29.639624],[-104.539761,29.676074],[-104.565688,29.770462],[-104.679772,29.924659],[-104.679661,29.975272],[-104.706874,30.050685],[-104.685003,30.085643],[-104.695366,30.13213],[-104.687296,30.179464],[-104.713166,30.237957],[-104.733822,30.261221],[-104.749664,30.26126],[-104.761634,30.301148],[-104.809794,30.334926],[-104.824314,30.370466],[-104.859521,30.390413],[-104.85242,30.418792],[-104.876787,30.511004],[-104.924796,30.604832],[-104.967167,30.608107],[-105.002057,30.680972],[-105.062334,30.686303],[-105.113816,30.746001],[-105.152362,30.751452],[-105.195144,30.792138],[-105.255416,30.797029],[-105.287238,30.822206],[-105.314863,30.816961],[-105.360672,30.847384],[-105.394242,30.852979],[-105.399609,30.888941],[-105.533088,30.984859],[-105.55743,30.990229],[-105.60333,31.082625],[-105.64189,31.098322],[-105.646731,31.113908],[-105.709491,31.136375],[-105.742678,31.164897],[-105.773257,31.166897],[-105.779725,31.191283],[-105.869353,31.288634],[-105.938452,31.318735],[-105.953943,31.364749],[-106.004926,31.392458],[-106.080258,31.398702],[-106.203969,31.465378],[-106.246203,31.541153],[-106.280811,31.562062],[-106.303536,31.620413],[-106.378039,31.72831],[-106.451541,31.764808],[-106.484642,31.747809],[-106.542097,31.802146],[-106.602727,31.825024],[-106.605845,31.846305],[-106.635926,31.866235],[-106.629197,31.883717],[-106.645296,31.894859],[-106.614346,31.918003],[-106.623933,31.925335],[-106.614702,31.956],[-106.622819,31.952891],[-106.618745,31.966955],[-106.638186,31.97682],[-106.618486,32.000495],[-103.064423,32.000518],[-103.064625,32.999899],[-103.043531,34.018014],[-103.041924,36.500439],[-100.003762,36.499699],[-100.000381,34.560509],[-99.929334,34.576714],[-99.825325,34.497596],[-99.754248,34.421289],[-99.696462,34.381036],[-99.665992,34.374185],[-99.600026,34.374688],[-99.569696,34.418418],[-99.499875,34.409608],[-99.430995,34.373414],[-99.399603,34.375079],[-99.394956,34.442099],[-99.381011,34.456936],[-99.358795,34.455863],[-99.318363,34.408296],[-99.289922,34.414731],[-99.264167,34.405149],[-99.25898,34.391243],[-99.273958,34.38756],[-99.242945,34.372668],[-99.233274,34.344101],[-99.210716,34.336304],[-99.211648,34.292232],[-99.19457,34.272424],[-99.189511,34.214312],[-99.159016,34.20888],[-99.130609,34.219408],[-99.126567,34.203004],[-99.079535,34.211518],[-99.048792,34.198209],[-99.013075,34.203222],[-98.990852,34.221633],[-98.974132,34.203566],[-98.952513,34.21265],[-98.909349,34.177499],[-98.872922,34.166584],[-98.868116,34.149635],[-98.8579,34.159627],[-98.812954,34.158444],[-98.749291,34.124238],[-98.735471,34.135208],[-98.696518,34.133521],[-98.648073,34.164441],[-98.603978,34.160249],[-98.577136,34.148962],[-98.486328,34.062598],[-98.414426,34.085074],[-98.384381,34.146317],[-98.367494,34.156191],[-98.16912,34.114171],[-98.114506,34.154727],[-98.09066,34.12198],[-98.120208,34.072127],[-98.099096,34.048639],[-98.104022,34.036233],[-98.088203,34.005481],[-98.027672,33.993357],[-97.978243,34.005387],[-97.947572,33.991053],[-97.974173,33.942832],[-97.955511,33.938186],[-97.957155,33.914454],[-97.983552,33.904002],[-97.967777,33.88243],[-97.877387,33.850236],[-97.834333,33.857671],[-97.784657,33.890632],[-97.783717,33.91056],[-97.76377,33.914241],[-97.762768,33.934396],[-97.725289,33.941045],[-97.69311,33.983699],[-97.671772,33.99137],[-97.589598,33.953554],[-97.589254,33.903922],[-97.551541,33.897947],[-97.50096,33.919643],[-97.460376,33.903948],[-97.451469,33.87093],[-97.462857,33.841772],[-97.426493,33.819398],[-97.365507,33.823763],[-97.33294,33.87444],[-97.315913,33.865838],[-97.299245,33.880175],[-97.256625,33.863286],[-97.24618,33.900344],[-97.210921,33.916064],[-97.179609,33.89225],[-97.166629,33.847311],[-97.203514,33.821825],[-97.205431,33.801488],[-97.172192,33.737545],[-97.126102,33.716941],[-97.086195,33.743933],[-97.087999,33.808747],[-97.058623,33.818752],[-97.052209,33.841737],[-97.023899,33.844213],[-96.985567,33.886522],[-96.996183,33.941728],[-96.979415,33.956178],[-96.973807,33.935697],[-96.9163,33.957798],[-96.875281,33.860505],[-96.85609,33.84749],[-96.837413,33.871349],[-96.794276,33.868886],[-96.761588,33.824406],[-96.704457,33.835021],[-96.667187,33.91694],[-96.630117,33.895422],[-96.592948,33.895616],[-96.590112,33.880665],[-96.625399,33.856542],[-96.623155,33.841483],[-96.572937,33.819098],[-96.523863,33.818114],[-96.502286,33.77346],[-96.422643,33.776041],[-96.348306,33.686379],[-96.309964,33.710489],[-96.294867,33.764771],[-96.277269,33.769735],[-96.220521,33.74739],[-96.178059,33.760518],[-96.162757,33.788769],[-96.178964,33.810553],[-96.150765,33.816987],[-96.15163,33.831946],[-96.138905,33.839159],[-96.09936,33.83047],[-96.101349,33.845721],[-96.005296,33.845505],[-95.991487,33.866869],[-95.951609,33.857017],[-95.936132,33.886826],[-95.831948,33.835161],[-95.821666,33.856633],[-95.805149,33.861304],[-95.776255,33.845145],[-95.75431,33.853992],[-95.761916,33.883402],[-95.747335,33.895756],[-95.696962,33.885218],[-95.669978,33.905844],[-95.636978,33.906613],[-95.599678,33.934247],[-95.556915,33.92702],[-95.545197,33.880294],[-95.515302,33.891142],[-95.492028,33.874822],[-95.461499,33.883686],[-95.464211,33.873372],[-95.44737,33.86885],[-95.339122,33.868873],[-95.334523,33.885788],[-95.283445,33.877746],[-95.280351,33.896751],[-95.255747,33.902939],[-95.252906,33.933648],[-95.219358,33.961567],[-95.121184,33.931307],[-95.093929,33.895963],[-95.061065,33.895292],[-95.049025,33.86409],[-95.008376,33.866089],[-94.983303,33.851354],[-94.976208,33.859847],[-94.948716,33.818023],[-94.91945,33.810176],[-94.919614,33.786305],[-94.879218,33.764912],[-94.8693,33.745871],[-94.830804,33.740068],[-94.817427,33.752172],[-94.798634,33.744527],[-94.775064,33.755038],[-94.762961,33.731787],[-94.742576,33.727009],[-94.732384,33.700254],[-94.714865,33.707261],[-94.710725,33.691654],[-94.684792,33.684353],[-94.659167,33.692138],[-94.646113,33.6693],[-94.57962,33.677623],[-94.520725,33.616567],[-94.491503,33.625115],[-94.485875,33.637867],[-94.448637,33.642766],[-94.468086,33.599436],[-94.430039,33.591124],[-94.413155,33.569368],[-94.378076,33.577019],[-94.397398,33.562314],[-94.389515,33.546778],[-94.355945,33.54318],[-94.345513,33.567313],[-94.309582,33.551673],[-94.289129,33.582144],[-94.280849,33.577187],[-94.290901,33.558872],[-94.27909,33.557026],[-94.245932,33.589114],[-94.237975,33.577757],[-94.250197,33.556765],[-94.226392,33.552912],[-94.205634,33.567229],[-94.193248,33.556154],[-94.192483,33.570425],[-94.217408,33.57926],[-94.183913,33.594682],[-94.152626,33.575923],[-94.146048,33.581975],[-94.14852,33.565678],[-94.136864,33.571],[-94.128658,33.550952],[-94.088943,33.575322],[-94.061283,33.568805],[-94.055663,33.561887],[-94.073744,33.558285],[-94.06548,33.550909],[-94.04604,33.551321],[-94.04272,31.999265],[-94.018664,31.990843],[-93.971712,31.920384],[-93.923929,31.88985],[-93.904766,31.890599],[-93.874761,31.821661],[-93.827451,31.777741],[-93.830647,31.745811],[-93.802694,31.697783],[-93.826462,31.666919],[-93.816838,31.622509],[-93.838057,31.606795],[-93.834924,31.586211],[-93.798087,31.534044],[-93.743376,31.525196],[-93.725925,31.504092],[-93.74987,31.475276],[-93.70093,31.437784],[-93.704879,31.410881],[-93.674117,31.397681],[-93.665052,31.363886],[-93.687851,31.309835],[-93.642516,31.269508],[-93.620343,31.271025],[-93.598828,31.174679],[-93.588503,31.165581],[-93.535097,31.185614],[-93.551693,31.097258],[-93.52301,31.065241],[-93.516943,31.032584],[-93.539526,31.008498],[-93.566017,31.004567],[-93.571906,30.987614],[-93.526245,30.939411],[-93.567788,30.888302],[-93.554057,30.824941],[-93.561666,30.807739],[-93.584265,30.796663],[-93.592828,30.763986],[-93.619129,30.742002],[-93.611192,30.718053],[-93.629904,30.67994],[-93.6831,30.640763],[-93.684329,30.592586],[-93.727844,30.57407],[-93.729195,30.544842],[-93.740253,30.539569],[-93.714322,30.518562],[-93.697828,30.443838],[-93.757654,30.390423],[-93.765822,30.333318],[-93.708645,30.288317],[-93.705083,30.242752],[-93.720946,30.209852],[-93.688212,30.141376],[-93.701252,30.137376],[-93.702436,30.112721],[-93.732485,30.088914],[-93.70082,30.056274],[-93.720805,30.053043],[-93.739734,30.023987],[-93.786935,29.99058],[-93.838374,29.882855],[-93.927992,29.80964],[-93.926504,29.78956],[-93.89847,29.771577],[-93.891637,29.744618],[-93.873941,29.73777],[-93.837971,29.690619],[-93.866981,29.673085],[-94.001406,29.681486],[-94.132577,29.646217],[-94.594853,29.467903],[-94.694158,29.415632],[-94.731047,29.369141],[-94.778691,29.361483],[-94.783131,29.375642],[-94.766848,29.393489],[-94.6724,29.476843],[-94.608557,29.483345],[-94.566674,29.531988],[-94.532348,29.5178],[-94.495025,29.525031],[-94.503429,29.54325],[-94.522421,29.545672],[-94.553988,29.573882],[-94.740699,29.525858],[-94.783296,29.535314],[-94.78954,29.546494],[-94.755237,29.562782],[-94.708741,29.625226],[-94.693154,29.694453],[-94.695317,29.723052],[-94.735271,29.785433],[-94.816085,29.75671],[-94.851108,29.721373],[-94.872551,29.67125],[-94.893107,29.661336],[-94.915413,29.656614],[-94.936089,29.692704],[-94.965963,29.70033],[-95.015636,29.639457],[-94.982936,29.60167],[-95.016889,29.548303],[-94.981916,29.511141],[-94.909898,29.49691],[-94.930861,29.450504],[-94.8908,29.433432],[-94.893994,29.30817],[-94.921593,29.281556],[-94.952526,29.290122],[-95.099101,29.173529],[-95.151925,29.151162],[-95.16525,29.113566],[-95.136221,29.084537],[-94.879239,29.285839],[-94.824953,29.306005],[-94.822307,29.344254],[-94.810696,29.353435],[-94.784895,29.335535],[-94.72253,29.331446],[-95.081773,29.111222],[-95.38239,28.866348],[-95.439594,28.859022],[-95.812504,28.664942],[-96.220376,28.491966],[-96.378616,28.383909],[-96.37596,28.401682],[-96.335119,28.437795],[-96.223825,28.495067],[-96.21505,28.509679],[-95.98616,28.606319],[-95.978526,28.650594],[-95.996338,28.658736],[-96.006516,28.648049],[-96.047737,28.649067],[-96.221784,28.580364],[-96.233998,28.596649],[-96.212624,28.622604],[-96.230944,28.641433],[-96.192267,28.687744],[-96.19583,28.69894],[-96.222802,28.698431],[-96.287942,28.683164],[-96.304227,28.671459],[-96.303718,28.644996],[-96.373439,28.626675],[-96.487943,28.569677],[-96.485907,28.607845],[-96.510844,28.61497],[-96.499648,28.635835],[-96.563262,28.644487],[-96.572931,28.667897],[-96.561226,28.696395],[-96.584091,28.722798],[-96.664534,28.696904],[-96.61059,28.638889],[-96.61975,28.627693],[-96.611099,28.585962],[-96.565297,28.5824],[-96.561226,28.570695],[-96.526111,28.557972],[-96.505755,28.525911],[-96.402446,28.449066],[-96.59176,28.357462],[-96.672677,28.335579],[-96.705247,28.348811],[-96.710336,28.406827],[-96.772209,28.408074],[-96.794554,28.365688],[-96.791761,28.31217],[-96.809573,28.290287],[-96.787181,28.255681],[-96.800413,28.224128],[-96.934765,28.123873],[-96.962755,28.123365],[-97.027014,28.148408],[-97.021303,28.1841],[-97.037008,28.185528],[-97.153601,28.13318],[-97.214039,28.087494],[-97.21535,28.076575],[-97.176444,28.059892],[-97.137421,28.057037],[-97.025693,28.11216],[-97.035528,28.084688],[-97.025859,28.041939],[-97.129168,27.919801],[-97.186709,27.825453],[-97.219738,27.823939],[-97.250797,27.876035],[-97.272253,27.881427],[-97.379042,27.837867],[-97.393291,27.782905],[-97.368355,27.741683],[-97.316446,27.712676],[-97.253955,27.696696],[-97.296598,27.613947],[-97.294054,27.5941],[-97.321535,27.571199],[-97.401942,27.335574],[-97.508304,27.275014],[-97.532223,27.278577],[-97.544437,27.284175],[-97.498126,27.308602],[-97.502706,27.322343],[-97.483877,27.338628],[-97.48693,27.358984],[-97.501688,27.366618],[-97.609068,27.285193],[-97.63146,27.28621],[-97.640111,27.270943],[-97.628916,27.242953],[-97.54291,27.229213],[-97.42408,27.264073],[-97.443673,27.116235],[-97.45665,27.099695],[-97.495836,27.094098],[-97.477515,27.066108],[-97.48693,27.057711],[-97.486676,27.03481],[-97.473444,27.02285],[-97.478533,26.999186],[-97.555378,26.99028],[-97.555378,26.93888],[-97.540874,26.90631],[-97.563266,26.842188],[-97.509831,26.803511],[-97.468609,26.740915],[-97.445708,26.609362],[-97.416955,26.553637],[-97.441383,26.455418],[-97.41721,26.44982],[-97.42179,26.417249],[-97.382485,26.411326],[-97.369627,26.394603],[-97.388965,26.36585],[-97.387947,26.330481],[-97.358176,26.356435],[-97.335275,26.355672],[-97.336802,26.331753],[-97.352833,26.318521],[-97.343927,26.267376],[-97.311866,26.273737],[-97.307031,26.253126],[-97.32128,26.236078],[-97.296598,26.200709],[-97.306776,26.159487],[-97.282094,26.120301],[-97.294054,26.11394],[-97.270898,26.086459],[-97.199651,26.077044],[-97.195071,26.04193],[-97.224842,26.027426],[-97.219244,25.996128],[-97.208557,25.991802],[-97.167208,26.007069],[-97.162628,26.023482],[-97.18273,26.053126],[-97.152009,26.062108],[-97.146294,25.955606],[-97.276707,25.952147],[-97.277163,25.935438],[-97.350398,25.925241],[-97.37443,25.907444],[-97.360082,25.868874],[-97.372864,25.840117],[-97.422636,25.840378],[-97.445113,25.850026],[-97.454727,25.879337],[-97.521762,25.886458],[-97.546421,25.934077],[-97.582565,25.937857],[-97.583044,25.955443],[-97.598043,25.957556],[-97.643708,26.016943],[-97.758838,26.032131],[-97.789823,26.04246],[-97.801344,26.060017],[-97.868235,26.056656]]]]},\"properties\":{\"name\":\"Texas\",\"nation\":\"USA  \"}}]}","volume":"62","publishingServiceCenter":{"id":9,"text":"Reston PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5a743587e4b0a9a2e9e25cbc","contributors":{"editors":[{"text":"Warwick, Peter D. 0000-0002-3152-7783 pwarwick@usgs.gov","orcid":"https://orcid.org/0000-0002-3152-7783","contributorId":762,"corporation":false,"usgs":true,"family":"Warwick","given":"Peter","email":"pwarwick@usgs.gov","middleInitial":"D.","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":false,"id":726441,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Karlsen, Alexander K.","contributorId":44089,"corporation":false,"usgs":false,"family":"Karlsen","given":"Alexander K.","affiliations":[],"preferred":false,"id":726442,"contributorType":{"id":2,"text":"Editors"},"rank":2},{"text":"Merrill, Matthew D. 0000-0003-3766-847X mmerrill@usgs.gov","orcid":"https://orcid.org/0000-0003-3766-847X","contributorId":2584,"corporation":false,"usgs":true,"family":"Merrill","given":"Matthew D.","email":"mmerrill@usgs.gov","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":false,"id":726443,"contributorType":{"id":2,"text":"Editors"},"rank":3},{"text":"Valentine, Brett J. 0000-0002-8678-2431 bvalentine@usgs.gov","orcid":"https://orcid.org/0000-0002-8678-2431","contributorId":3846,"corporation":false,"usgs":true,"family":"Valentine","given":"Brett","email":"bvalentine@usgs.gov","middleInitial":"J.","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true},{"id":255,"text":"Energy Resources Program","active":true,"usgs":true}],"preferred":true,"id":726444,"contributorType":{"id":2,"text":"Editors"},"rank":4}],"authors":[{"text":"Warwick, Peter D. 0000-0002-3152-7783 pwarwick@usgs.gov","orcid":"https://orcid.org/0000-0002-3152-7783","contributorId":762,"corporation":false,"usgs":true,"family":"Warwick","given":"Peter","email":"pwarwick@usgs.gov","middleInitial":"D.","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":false,"id":716876,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Aubourg, Claire E.","contributorId":87192,"corporation":false,"usgs":true,"family":"Aubourg","given":"Claire","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":716877,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Podwysocki, Steven M.","contributorId":90352,"corporation":false,"usgs":true,"family":"Podwysocki","given":"Steven","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":716878,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Schultz, Adam C.","contributorId":82752,"corporation":false,"usgs":true,"family":"Schultz","given":"Adam","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":716879,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70034760,"text":"70034760 - 2011 - Sequence stratigraphy and a revised sea-level curve for the Middle Devonian of eastern North America","interactions":[],"lastModifiedDate":"2021-03-16T12:02:56.254942","indexId":"70034760","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2996,"text":"Palaeogeography, Palaeoclimatology, Palaeoecology","printIssn":"0031-0182","active":true,"publicationSubtype":{"id":10}},"title":"Sequence stratigraphy and a revised sea-level curve for the Middle Devonian of eastern North America","docAbstract":"<p><span>The well-exposed Middle Devonian rocks of the Appalachian foreland basin (Onondaga Formation; Hamilton Group, Tully Formation, and the Genesee Group of New York State) preserve one of the most detailed records of high-order sea-level oscillation cycles for this time period in the world. Detailed examination of coeval units in distal areas of the Appalachian Basin, as well as portions of the Michigan and Illinois basins, has revealed that the pattern of high-order sea-level oscillations documented in the New York–Pennsylvania section can be positively identified in all areas of eastern North America where coeval units are preserved. The persistence of the pattern of high-order sea-level cycles across such a wide geographic area suggests that these cycles are allocyclic in nature with primary control on deposition being eustatic sea-level oscillation, as opposed to autocylic controls, such as sediment supply, which would be more local in their manifestation. There is strong evidence from studies of cyclicity and spectral analysis that these cycles are also related to Milankovitch orbital variations, with the short and long-term eccentricity cycles (100</span><span>&nbsp;</span><span>kyr and 405</span><span>&nbsp;</span><span>kyr) being the dominant oscillations in many settings. Relative sea-level oscillations of tens of meters are likely and raise considerable issues about the driving mechanism, given that the Middle Devonian appears to record a greenhouse phase of Phanerozoic history. These new correlations lend strong support to a revised high-resolution sea-level oscillation curve for the Middle Devonian for the eastern portion of North America. Recognized third-order sequences are: Eif-1 lower Onondaga Formation, Eif-2: upper Onondaga and Union Springs formations; Eif–Giv: Oatka Creek Formation; Giv-1: Skaneateles, Giv-2: Ludlowville, Giv-3: lower Moscow, Giv-4: upper Moscow–lower Tully, and Giv-5: middle Tully–Geneseo formations. Thus, in contrast with the widely cited eustatic curve of Johnson et al. (1985), which recognizes just one major transgressive–regressive (T–R) cycle in the early–mid Givetian (If) prior to the major late Givetian Taghanic unconformity (IIa, upper Tully–Geneseo Shale), we recognize four T–R cycles: If (restricted), Ig, Ih, and Ii. We surmise that third-order sequences record eustatic sea-level fluctuations of tens of meters with periodicities of 0.8–2</span><span>&nbsp;</span><span>myr, while their medial-scale (fourth-order) subdivisions record lesser variations primarily of 405</span><span>&nbsp;</span><span>kyr duration (long-term eccentricity). This high-resolution record of sea-level change provides strong evidence for high-order eustatic cycles with probable Milankovitch periodicities, despite the fact that no direct evidence for Middle Devonian glacial sediments has been found to date.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.palaeo.2010.10.009","issn":"00310182","usgsCitation":"Brett, C.E., Baird, G., Bartholomew, A., DeSantis, M., and Ver Straeten, C.A., 2011, Sequence stratigraphy and a revised sea-level curve for the Middle Devonian of eastern North America: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 304, no. 1-2, p. 21-53, https://doi.org/10.1016/j.palaeo.2010.10.009.","productDescription":"33 p.","startPage":"21","endPage":"53","costCenters":[],"links":[{"id":243487,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States, Canada","state":"Wisconsin, Illinois, Michigan, Indiana, Kentucky, Tennessee, Ohio, Pennsylvania, New York","otherGeospatial":"Eastern North America","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -91.93359375,\n              45.89000815866184\n            ],\n            [\n              -90.791015625,\n              43.197167282501276\n            ],\n            [\n              -90.615234375,\n              42.48830197960227\n            ],\n            [\n              -90.439453125,\n              41.04621681452063\n            ],\n            [\n              -90.966796875,\n              40.17887331434696\n            ],\n            [\n              -89.82421875,\n              38.272688535980976\n            ],\n            [\n              -89.033203125,\n              37.16031654673677\n            ],\n            [\n              -90,\n              35.24561909420681\n            ],\n            [\n              -84.287109375,\n              35.24561909420681\n            ],\n            [\n              -82.880859375,\n              36.31512514748051\n            ],\n            [\n              -83.75976562499999,\n              37.020098201368114\n            ],\n            [\n              -82.705078125,\n              38.54816542304656\n            ],\n            [\n              -81.298828125,\n              40.04443758460856\n            ],\n            [\n              -75.673828125,\n              39.977120098439634\n            ],\n            [\n              -75.322265625,\n              41.705728515237524\n            ],\n            [\n              -73.212890625,\n              42.293564192170095\n            ],\n            [\n              -73.30078125,\n              44.77793589631623\n            ],\n            [\n              -74.8828125,\n              44.84029065139799\n            ],\n            [\n              -79.541015625,\n              44.902577996288876\n            ],\n            [\n              -82.705078125,\n              45.706179285330855\n            ],\n            [\n              -85.078125,\n              46.13417004624326\n            ],\n            [\n              -86.923828125,\n              44.96479793033101\n            ],\n            [\n              -87.71484375,\n              45.336701909968134\n            ],\n            [\n              -90.615234375,\n              46.619261036171515\n            ],\n            [\n              -91.7578125,\n              46.73986059969267\n            ],\n            [\n              -91.93359375,\n              45.89000815866184\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"304","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b8d4ce4b08c986b31832d","contributors":{"authors":[{"text":"Brett, Carlton E.","contributorId":85774,"corporation":false,"usgs":true,"family":"Brett","given":"Carlton","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":447462,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Baird, G.C.","contributorId":59631,"corporation":false,"usgs":true,"family":"Baird","given":"G.C.","email":"","affiliations":[],"preferred":false,"id":447461,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bartholomew, A.J.","contributorId":18198,"corporation":false,"usgs":true,"family":"Bartholomew","given":"A.J.","email":"","affiliations":[],"preferred":false,"id":447458,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"DeSantis, M.K.","contributorId":28824,"corporation":false,"usgs":true,"family":"DeSantis","given":"M.K.","email":"","affiliations":[],"preferred":false,"id":447459,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Ver Straeten, C. A.","contributorId":53984,"corporation":false,"usgs":false,"family":"Ver Straeten","given":"C.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":447460,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70034839,"text":"70034839 - 2011 - Regional and climatic controls on seasonal dust deposition in the southwestern U.S.","interactions":[],"lastModifiedDate":"2021-03-10T21:10:08.14344","indexId":"70034839","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":666,"text":"Aeolian Research","active":true,"publicationSubtype":{"id":10}},"title":"Regional and climatic controls on seasonal dust deposition in the southwestern U.S.","docAbstract":"<p><span>Vertical dust deposition rates (dust flux) are a complex response to the interaction of seasonal precipitation, wind, changes in plant cover and land use, dust source type, and local vs. distant dust emission in the southwestern U.S. Seasonal dust flux in the Mojave–southern Great Basin (MSGB) deserts, measured from 1999 to 2008, is similar in summer–fall and winter–spring, and antecedent precipitation tends to suppress dust flux in winter–spring. In contrast, dust flux in the eastern Colorado Plateau (ECP) region is much larger in summer–fall than in winter–spring, and twice as large as in the MSGB. ECP dust is related to wind speed, and in the winter–spring to antecedent moisture. Higher summer dust flux in the ECP is likely due to gustier winds and runoff during monsoonal storms when temperature is also higher. Source types in the MSGB and land use in the ECP have important effects on seasonal dust flux. In the MSGB, wet playas produce salt-rich dust during wetter seasons, whereas antecedent and current moisture suppress dust emission from alluvial and dry-playa sources during winter–spring. In the ECP under drought conditions, dust flux at a grazed-and-plowed site increased greatly, and also increased at three annualized, previously grazed sites. Dust fluxes remained relatively consistent at ungrazed and currently grazed sites that have maintained perennial vegetation cover. Under predicted scenarios of future climate change, these results suggest that an increase in summer storms may increase dust flux in both areas, but resultant effects will depend on source type, land use, and vegetation cover.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.aeolia.2011.03.008","issn":"18759637","usgsCitation":"Reheis, M.C., and Urban, F., 2011, Regional and climatic controls on seasonal dust deposition in the southwestern U.S.: Aeolian Research, v. 3, no. 1, p. 3-21, https://doi.org/10.1016/j.aeolia.2011.03.008.","productDescription":"19 p.","startPage":"3","endPage":"21","costCenters":[],"links":[{"id":243800,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215963,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.aeolia.2011.03.008"}],"country":"United States","state":"Arizona, California, Nevada, Utah","otherGeospatial":"Southwestern U.S.","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -117.72949218749999,\n              32.602361666817515\n            ],\n            [\n              -110.36865234374999,\n              32.602361666817515\n            ],\n            [\n              -110.36865234374999,\n              38.048091067457236\n            ],\n            [\n              -117.72949218749999,\n              38.048091067457236\n            ],\n            [\n              -117.72949218749999,\n              32.602361666817515\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"3","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"50e4a49fe4b0e8fec6cdbbc8","contributors":{"authors":[{"text":"Reheis, Marith C. 0000-0002-8359-323X mreheis@usgs.gov","orcid":"https://orcid.org/0000-0002-8359-323X","contributorId":138571,"corporation":false,"usgs":true,"family":"Reheis","given":"Marith","email":"mreheis@usgs.gov","middleInitial":"C.","affiliations":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true},{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":447886,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Urban, Frank 0000-0002-1329-1703 furban@usgs.gov","orcid":"https://orcid.org/0000-0002-1329-1703","contributorId":127827,"corporation":false,"usgs":true,"family":"Urban","given":"Frank","email":"furban@usgs.gov","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":447885,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70034868,"text":"70034868 - 2011 - Reconciling multiple data sources to improve accuracy of large-scale prediction of forest disease incidence","interactions":[],"lastModifiedDate":"2021-03-10T12:57:46.160131","indexId":"70034868","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1450,"text":"Ecological Applications","active":true,"publicationSubtype":{"id":10}},"title":"Reconciling multiple data sources to improve accuracy of large-scale prediction of forest disease incidence","docAbstract":"<p><span>Ecological spatial data often come from multiple sources, varying in extent and accuracy. We describe a general approach to reconciling such data sets through the use of the Bayesian hierarchical framework. This approach provides a way for the data sets to borrow strength from one another while allowing for inference on the underlying ecological process. We apply this approach to study the incidence of eastern spruce dwarf mistletoe (</span><i>Arceuthobium pusillum</i><span>) in Minnesota black spruce (</span><i>Picea mariana</i><span>). A Minnesota Department of Natural Resources operational inventory of black spruce stands in northern Minnesota found mistletoe in 11% of surveyed stands, while a small, specific‐pest survey found mistletoe in 56% of the surveyed stands. We reconcile these two surveys within a Bayesian hierarchical framework and predict that 35–59% of black spruce stands in northern Minnesota are infested with dwarf mistletoe.</span></p>","language":"English","publisher":"Ecological Society of America","doi":"10.1890/09-1549.1","issn":"10510761","usgsCitation":"Hanks, E., Hooten, M., and Baker, F., 2011, Reconciling multiple data sources to improve accuracy of large-scale prediction of forest disease incidence: Ecological Applications, v. 21, no. 4, p. 1173-1188, https://doi.org/10.1890/09-1549.1.","productDescription":"16 p.","startPage":"1173","endPage":"1188","costCenters":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"links":[{"id":243802,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Minnesota","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -97.20703125,\n              48.99463598353405\n            ],\n            [\n              -96.92138671875,\n              47.517200697839414\n            ],\n            [\n              -96.767578125,\n              46.31658418182218\n            ],\n            [\n              -92.17529296875,\n              46.08847179577592\n            ],\n            [\n              -92.1533203125,\n              46.694667307773116\n            ],\n            [\n              -90.81298828125,\n              47.56170075451973\n            ],\n            [\n              -89.56054687499999,\n              47.81315451752768\n            ],\n            [\n              -91.0546875,\n              48.40003249610685\n            ],\n            [\n              -94.482421875,\n              48.980216985374994\n            ],\n            [\n              -95.2734375,\n              49.49667452747045\n            ],\n            [\n              -97.20703125,\n              48.99463598353405\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"21","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a96a0e4b0c8380cd820de","contributors":{"authors":[{"text":"Hanks, E.M.","contributorId":104305,"corporation":false,"usgs":true,"family":"Hanks","given":"E.M.","email":"","affiliations":[],"preferred":false,"id":448073,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hooten, Mevin 0000-0002-1614-723X mhooten@usgs.gov","orcid":"https://orcid.org/0000-0002-1614-723X","contributorId":2958,"corporation":false,"usgs":true,"family":"Hooten","given":"Mevin","email":"mhooten@usgs.gov","affiliations":[{"id":12963,"text":"Colorado Cooperative Fish and Wildlife Research Unit, Fort Collins, CO","active":true,"usgs":false},{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"preferred":true,"id":448071,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Baker, F.A.","contributorId":103894,"corporation":false,"usgs":true,"family":"Baker","given":"F.A.","email":"","affiliations":[],"preferred":false,"id":448072,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70034906,"text":"70034906 - 2011 - Dispersal and behavior of Pacific halibut Hippoglossus stenolepis in the Bering Sea and Aleutian Islands region","interactions":[],"lastModifiedDate":"2021-03-08T20:40:08.694304","indexId":"70034906","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":860,"text":"Aquatic Biology","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Dispersal and behavior of Pacific halibut <i>hippoglossus stenolepis</i> in the Bering Sea and Aleutian islands region","title":"Dispersal and behavior of Pacific halibut Hippoglossus stenolepis in the Bering Sea and Aleutian Islands region","docAbstract":"<p class=\"abstract_block\">Currently, it is assumed that eastern Pacific halibut<span>&nbsp;</span><i>Hippoglossus stenolepis</i><span>&nbsp;</span>belong to a&nbsp;single, fully mixed population extending from California through the Bering Sea, in which adult ­halibut disperse randomly throughout their range during their lifetime. However, we hypothesize that hali­but dispersal is more complex than currently assumed and is not spatially random. To test this hypo­thesis, we studied the seasonal dispersal and behavior of Pacific halibut in the Bering Sea and Aleutian Islands (BSAI). Pop-up Archival Transmitting tags attached to halibut (82 to 154 cm fork length) during the summer provided no evidence that individuals moved out of the Bering Sea and Aleutian Islands region into the Gulf of Alaska during the mid-winter spawning season, supporting the concept that this region contains a separate spawning group of adult halibut. There was evidence for geographically localized groups of halibut along the Aleutian Island chain, as all of the individuals tagged there displayed residency, with their movements possibly impeded by tidal currents in the passes between islands. Mid-winter aggregation areas of halibut are assumed to be spawning grounds, of which 2 were previously unidentified and extend the species’ presumed spawning range ~1000 km west and ~600 km north of the nearest documented spawning area. If there are indeed&nbsp; independent spawning groups of Pacific halibut in the BSAI, their dynamics may vary sufficiently from those of the Gulf of Alaska, so that specifically accounting for their relative segregation and unique ­dynamics within the larger population model will be necessary for correctly predicting how these components may respond to fishing pressure and changing environmental conditions.</p>","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Aquatic Biology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Inter-Research Science Publisher","doi":"10.3354/ab00333","issn":"18647782","usgsCitation":"Seitz, A., Loher, T., Norcross, B.L., and Nielsen, J.L., 2011, Dispersal and behavior of Pacific halibut Hippoglossus stenolepis in the Bering Sea and Aleutian Islands region: Aquatic Biology, v. 12, no. 3, p. 225-239, https://doi.org/10.3354/ab00333.","productDescription":"15 p.","startPage":"225","endPage":"239","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":475205,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.3354/ab00333","text":"Publisher Index Page"},{"id":243868,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":216029,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.3354/ab00333"}],"country":"United States","state":"Alaska","otherGeospatial":"Bering Sea and Aleutian Islands","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -179.82421875,\n              49.83798245308484\n            ],\n            [\n              -159.521484375,\n              49.83798245308484\n            ],\n            [\n              -159.521484375,\n              59.489726035537075\n            ],\n            [\n              -179.82421875,\n              59.489726035537075\n            ],\n            [\n              -179.82421875,\n              49.83798245308484\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"12","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0217e4b0c8380cd4fe9e","contributors":{"authors":[{"text":"Seitz, A.C.","contributorId":71756,"corporation":false,"usgs":true,"family":"Seitz","given":"A.C.","email":"","affiliations":[],"preferred":false,"id":448259,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Loher, Timothy","contributorId":26130,"corporation":false,"usgs":false,"family":"Loher","given":"Timothy","email":"","affiliations":[{"id":33614,"text":"International Pacific Halibut Comission","active":true,"usgs":false}],"preferred":false,"id":448258,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Norcross, Brenda L.","contributorId":21497,"corporation":false,"usgs":false,"family":"Norcross","given":"Brenda","email":"","middleInitial":"L.","affiliations":[{"id":7211,"text":"University of Alaska, Fairbanks","active":true,"usgs":false}],"preferred":false,"id":448257,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Nielsen, Jennifer L.","contributorId":43722,"corporation":false,"usgs":true,"family":"Nielsen","given":"Jennifer","email":"","middleInitial":"L.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":448260,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70034936,"text":"70034936 - 2011 - Seasonal distribution of Gulf of Mexico sturgeon in the pensacola bay system, Florida","interactions":[],"lastModifiedDate":"2021-03-04T12:50:47.509992","indexId":"70034936","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2166,"text":"Journal of Applied Ichthyology","active":true,"publicationSubtype":{"id":10}},"title":"Seasonal distribution of Gulf of Mexico sturgeon in the pensacola bay system, Florida","docAbstract":"<p><span>Temporal and spatial distributions of Gulf of Mexico (Gulf) sturgeon&nbsp;</span><i>Acipenser oxyrinchus desotoi</i><span>&nbsp;were assessed in the Pensacola bay system, Florida, using stationary ultrasonic telemetry. Fifty‐eight Gulf sturgeon were tagged within the Escambia (n = 26), Yellow (n = 8), Blackwater (n = 12) and Choctawhatchee Rivers (n = 12) in June, July, September and October, 2005. Fifty‐four Gulf sturgeon were detected at least once during the study. Migration of sturgeon occurred throughout the bay system in fall, to various winter habitats in the Gulf of Mexico and Santa Rosa Sound. In spring, tagged sturgeon migrated back through the bay system to summer habitats in rivers. Based on the duration and number of detections, Gulf sturgeon primarily used the upper portions of East and Escambia Bays as migration routes in and out of all rivers during spring and summer and inhabited the lower portion of Pensacola Bay for longer durations in fall and winter. Specific areas within the Pensacola bay system were used in summer and winter that were not previously documented as essential sturgeon habitat. Areas in southeastern Pensacola Bay were heavily used during winter by a large portion of the population. Gulf sturgeon also exhibited long‐term winter residency in Santa Rosa Sound for two consecutive years. An area in northeastern Escambia Bay supported Gulf sturgeon during the summer, which was unexpected and can not be explained by the data from this study. However, the discovery that Gulf sturgeon remain in the bay during the summer has important ecological and management implications that need further investigation.</span></p>","language":"English","publisher":"Wiley","doi":"10.1111/j.1439-0426.2011.01724.x","issn":"01758659","usgsCitation":"Duncan, M., Wrege, B., Parauka, F.M., and Isely, J.J., 2011, Seasonal distribution of Gulf of Mexico sturgeon in the pensacola bay system, Florida: Journal of Applied Ichthyology, v. 27, no. 2, p. 316-321, https://doi.org/10.1111/j.1439-0426.2011.01724.x.","productDescription":"6 p.","startPage":"316","endPage":"321","costCenters":[],"links":[{"id":475528,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1111/j.1439-0426.2011.01724.x","text":"Publisher Index Page"},{"id":243836,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Florida","otherGeospatial":"Pensacola Bay system","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -88.3740234375,\n              27.508271413876017\n            ],\n            [\n              -84.88037109375,\n              27.508271413876017\n            ],\n            [\n              -84.88037109375,\n              30.80791068136646\n            ],\n            [\n              -88.3740234375,\n              30.80791068136646\n            ],\n            [\n              -88.3740234375,\n              27.508271413876017\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"27","issue":"2","noUsgsAuthors":false,"publicationDate":"2011-03-28","publicationStatus":"PW","scienceBaseUri":"505b8894e4b08c986b316a40","contributors":{"authors":[{"text":"Duncan, M.S.","contributorId":99750,"corporation":false,"usgs":true,"family":"Duncan","given":"M.S.","email":"","affiliations":[],"preferred":false,"id":448397,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wrege, B.M.","contributorId":100405,"corporation":false,"usgs":true,"family":"Wrege","given":"B.M.","affiliations":[],"preferred":false,"id":448398,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Parauka, Frank M.","contributorId":47115,"corporation":false,"usgs":true,"family":"Parauka","given":"Frank","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":448395,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Isely, J. Jeffery","contributorId":97224,"corporation":false,"usgs":true,"family":"Isely","given":"J.","email":"","middleInitial":"Jeffery","affiliations":[],"preferred":false,"id":448396,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70192705,"text":"70192705 - 2011 - Upper Cretaceous bituminous coal deposits of the Olmos Formation, Maverick County, Texas","interactions":[],"lastModifiedDate":"2020-10-22T16:27:30.185583","indexId":"70192705","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"seriesTitle":{"id":5382,"text":"AAPG Studies in Geology","active":false,"publicationSubtype":{"id":24}},"chapter":"13","title":"Upper Cretaceous bituminous coal deposits of the Olmos Formation, Maverick County, Texas","docAbstract":"<p>This report describes the bituminous coal deposits of the Olmos Formation (Navarro Group, Upper Cretaceous; Figures 1, 2) of Maverick County in south Texas. Although these were not evaluated quantitatively as part of the current Gulf Coastal Plain coal-resource assessment, a detailed review is presented in this chapter.</p><p>Prior to the late 1920s, these coal beds were mined underground on a large scale in the vicinity of Eagle Pass, Texas (Figure 1). Since the 1970s, Olmos Formation coals have been mined extensively in both underground and surface mines in nearby Coahuila, Mexico, to supply mine-mouth fuel for power generation at a plant nearby. A tract northeast of Eagle Pass was permitted in the late 1990s for surface mining. In east-central Maverick County, a coalbed methane field is being developed in coal beds of the lower part of the Olmos Formation (Barker et al., 2002; Scott, 2003).</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Geologic assessment of coal in the Gulf of Mexico coastal plain","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":"American Association of Petroleum Geologists","usgsCitation":"Hook, R.W., Warwick, P.D., and SanFilipo, J., 2011, Upper Cretaceous bituminous coal deposits of the Olmos Formation, Maverick County, Texas, chap. 13 <i>of</i> Geologic assessment of coal in the Gulf of Mexico coastal plain: AAPG Studies in Geology, v. 62, p. 277-285.","productDescription":"9 p.","startPage":"277","endPage":"285","ipdsId":"IP-020061","costCenters":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"links":[{"id":350926,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://archives.datapages.com/data/specpubs/discovery14/data/001/001001/277_aapg-sp0010277.htm"},{"id":350927,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Texas","county":"Maverick County","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"Polygon\",\"coordinates\":[[[-100.1119,29.0844],[-100.112,28.743],[-100.1118,28.6383],[-100.1107,28.199],[-100.2123,28.2002],[-100.2129,28.2029],[-100.2144,28.214],[-100.216,28.22],[-100.2164,28.2214],[-100.2181,28.2273],[-100.2202,28.231],[-100.2209,28.2317],[-100.2233,28.2342],[-100.2279,28.236],[-100.2336,28.2365],[-100.2382,28.236],[-100.2449,28.2346],[-100.2486,28.2346],[-100.249,28.2348],[-100.2534,28.2367],[-100.2537,28.2369],[-100.2573,28.2396],[-100.2641,28.2456],[-100.2713,28.2516],[-100.277,28.2571],[-100.2812,28.2649],[-100.2848,28.269],[-100.2874,28.2717],[-100.29,28.274],[-100.2921,28.2768],[-100.2931,28.2814],[-100.2931,28.286],[-100.2916,28.2915],[-100.29,28.2966],[-100.2885,28.3035],[-100.2885,28.3085],[-100.2906,28.3149],[-100.2953,28.3204],[-100.301,28.3283],[-100.3083,28.3365],[-100.313,28.3429],[-100.3161,28.3475],[-100.3182,28.3535],[-100.3197,28.3581],[-100.3234,28.3626],[-100.3265,28.3677],[-100.3332,28.3736],[-100.3415,28.3819],[-100.3483,28.3925],[-100.3504,28.3998],[-100.3494,28.4044],[-100.3484,28.409],[-100.3437,28.4168],[-100.3402,28.4246],[-100.3381,28.4329],[-100.3397,28.4398],[-100.3413,28.4481],[-100.3491,28.4559],[-100.3579,28.4632],[-100.3641,28.4682],[-100.3683,28.4733],[-100.3704,28.476],[-100.3699,28.4801],[-100.3689,28.4815],[-100.3658,28.4825],[-100.3595,28.4839],[-100.3528,28.4843],[-100.3482,28.4853],[-100.3435,28.487],[-100.343,28.4871],[-100.3383,28.4913],[-100.3363,28.495],[-100.3363,28.4991],[-100.3368,28.4999],[-100.3379,28.5018],[-100.3425,28.5037],[-100.3478,28.504],[-100.3503,28.5041],[-100.356,28.505],[-100.3625,28.5071],[-100.3643,28.5077],[-100.3705,28.51],[-100.3767,28.5109],[-100.3835,28.5127],[-100.3876,28.515],[-100.3908,28.5191],[-100.3934,28.5237],[-100.3965,28.5269],[-100.4012,28.5306],[-100.4079,28.5374],[-100.4089,28.5384],[-100.4111,28.5406],[-100.4137,28.5448],[-100.4132,28.5489],[-100.4122,28.5544],[-100.4096,28.5581],[-100.406,28.5623],[-100.4024,28.5664],[-100.3998,28.571],[-100.3978,28.5751],[-100.3973,28.5802],[-100.3983,28.5843],[-100.4014,28.5862],[-100.4097,28.5889],[-100.4201,28.5925],[-100.4248,28.5939],[-100.4272,28.595],[-100.4305,28.5966],[-100.4326,28.598],[-100.4331,28.6012],[-100.4342,28.6044],[-100.4345,28.6047],[-100.4363,28.6062],[-100.4375,28.6064],[-100.4399,28.6067],[-100.4435,28.608],[-100.4453,28.6091],[-100.4466,28.6099],[-100.4484,28.6114],[-100.4487,28.6117],[-100.4493,28.6167],[-100.4493,28.625],[-100.4494,28.6333],[-100.4489,28.6374],[-100.4494,28.6402],[-100.452,28.642],[-100.4541,28.6424],[-100.4582,28.642],[-100.4619,28.6415],[-100.4665,28.6419],[-100.4717,28.6442],[-100.4764,28.6479],[-100.48,28.6511],[-100.4821,28.6547],[-100.4847,28.6565],[-100.491,28.6579],[-100.4946,28.6583],[-100.4988,28.6602],[-100.5019,28.6624],[-100.504,28.6665],[-100.5051,28.6716],[-100.5093,28.6835],[-100.5125,28.6945],[-100.5125,28.7019],[-100.5115,28.7097],[-100.51,28.7143],[-100.509,28.7203],[-100.509,28.7271],[-100.5091,28.734],[-100.5091,28.7377],[-100.5102,28.7405],[-100.5128,28.7418],[-100.5159,28.7423],[-100.5169,28.7432],[-100.5175,28.7459],[-100.518,28.7487],[-100.5185,28.7524],[-100.5201,28.7551],[-100.5232,28.7569],[-100.5284,28.7574],[-100.5321,28.7578],[-100.5336,28.7587],[-100.5337,28.7601],[-100.5337,28.7661],[-100.5337,28.7684],[-100.5342,28.7734],[-100.5358,28.7771],[-100.5374,28.7789],[-100.5379,28.7803],[-100.5374,28.7835],[-100.5354,28.7867],[-100.5344,28.7908],[-100.5344,28.795],[-100.5349,28.8],[-100.5376,28.8051],[-100.5428,28.8087],[-100.5475,28.8124],[-100.5491,28.8183],[-100.5496,28.8229],[-100.5512,28.827],[-100.5538,28.8284],[-100.559,28.8284],[-100.5632,28.8283],[-100.5679,28.8274],[-100.5725,28.8265],[-100.5762,28.8278],[-100.5783,28.8306],[-100.5783,28.8328],[-100.5778,28.8379],[-100.5768,28.842],[-100.5758,28.8457],[-100.5758,28.8485],[-100.5784,28.8521],[-100.5836,28.8558],[-100.5915,28.8612],[-100.5941,28.864],[-100.5952,28.8676],[-100.5952,28.8704],[-100.5968,28.8736],[-100.5988,28.875],[-100.5999,28.8773],[-100.5984,28.88],[-100.5958,28.8819],[-100.5927,28.8837],[-100.5922,28.8865],[-100.5938,28.8883],[-100.5984,28.8887],[-100.6021,28.8887],[-100.6057,28.8892],[-100.6078,28.891],[-100.6084,28.8937],[-100.6053,28.897],[-100.6037,28.8988],[-100.6048,28.9011],[-100.6079,28.902],[-100.6105,28.902],[-100.6157,28.9024],[-100.6178,28.9047],[-100.6189,28.9065],[-100.622,28.9083],[-100.6246,28.9079],[-100.6267,28.9069],[-100.6292,28.9042],[-100.6323,28.9032],[-100.6344,28.9037],[-100.6365,28.906],[-100.6381,28.9096],[-100.6402,28.9119],[-100.6434,28.9142],[-100.6429,28.9169],[-100.6387,28.9183],[-100.6351,28.9184],[-100.6319,28.9188],[-100.6304,28.9211],[-100.632,28.9244],[-100.6357,28.9271],[-100.6388,28.9289],[-100.643,28.9307],[-100.6456,28.9348],[-100.6477,28.9394],[-100.6509,28.9431],[-100.6525,28.9467],[-100.6525,28.9504],[-100.6504,28.9545],[-100.6489,28.9605],[-100.649,28.967],[-100.649,28.9678],[-100.6501,28.977],[-100.6491,28.9834],[-100.6502,28.9935],[-100.6513,29.0013],[-100.6529,29.01],[-100.6556,29.016],[-100.6588,29.0242],[-100.662,29.0338],[-100.6637,29.0467],[-100.6637,29.0577],[-100.6649,29.0678],[-100.6665,29.0783],[-100.6686,29.0834],[-100.1119,29.0844]]]},\"properties\":{\"name\":\"Maverick\",\"state\":\"TX\"}}]}","volume":"62","publishingServiceCenter":{"id":9,"text":"Reston PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5a743589e4b0a9a2e9e25cca","contributors":{"editors":[{"text":"Warwick, Peter D. 0000-0002-3152-7783 pwarwick@usgs.gov","orcid":"https://orcid.org/0000-0002-3152-7783","contributorId":762,"corporation":false,"usgs":true,"family":"Warwick","given":"Peter","email":"pwarwick@usgs.gov","middleInitial":"D.","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":false,"id":726457,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Karlsen, Alexander K.","contributorId":44089,"corporation":false,"usgs":false,"family":"Karlsen","given":"Alexander K.","affiliations":[],"preferred":false,"id":726458,"contributorType":{"id":2,"text":"Editors"},"rank":2},{"text":"Merrill, Matthew D. 0000-0003-3766-847X mmerrill@usgs.gov","orcid":"https://orcid.org/0000-0003-3766-847X","contributorId":2584,"corporation":false,"usgs":true,"family":"Merrill","given":"Matthew D.","email":"mmerrill@usgs.gov","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":false,"id":726459,"contributorType":{"id":2,"text":"Editors"},"rank":3},{"text":"Valentine, Brett J. 0000-0002-8678-2431 bvalentine@usgs.gov","orcid":"https://orcid.org/0000-0002-8678-2431","contributorId":3846,"corporation":false,"usgs":true,"family":"Valentine","given":"Brett","email":"bvalentine@usgs.gov","middleInitial":"J.","affiliations":[{"id":255,"text":"Energy Resources Program","active":true,"usgs":true},{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":726460,"contributorType":{"id":2,"text":"Editors"},"rank":4}],"authors":[{"text":"Hook, Robert W.","contributorId":26006,"corporation":false,"usgs":true,"family":"Hook","given":"Robert","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":716744,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Warwick, Peter D. 0000-0002-3152-7783 pwarwick@usgs.gov","orcid":"https://orcid.org/0000-0002-3152-7783","contributorId":762,"corporation":false,"usgs":true,"family":"Warwick","given":"Peter","email":"pwarwick@usgs.gov","middleInitial":"D.","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":false,"id":716745,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"SanFilipo, John R. 0000-0002-8739-5628 jsan@usgs.gov","orcid":"https://orcid.org/0000-0002-8739-5628","contributorId":2385,"corporation":false,"usgs":true,"family":"SanFilipo","given":"John R.","email":"jsan@usgs.gov","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":false,"id":716746,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70034962,"text":"70034962 - 2011 - Micropaleontologic record of Quaternary paleoenvironments in the Central Albemarle Embayment, North Carolina, U.S.A.","interactions":[],"lastModifiedDate":"2021-03-03T20:51:31.213254","indexId":"70034962","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2996,"text":"Palaeogeography, Palaeoclimatology, Palaeoecology","printIssn":"0031-0182","active":true,"publicationSubtype":{"id":10}},"title":"Micropaleontologic record of Quaternary paleoenvironments in the Central Albemarle Embayment, North Carolina, U.S.A.","docAbstract":"<p id=\"sp0100\">To understand the temporal and spatial variation of eustatic sea-level fluctuations, glacio–hydro–isostacy, tectonics, subsidence, geologic environments and sedimentation patterns for the Quaternary of a passive continental margin, a nearly complete stratigraphic record that is fully integrated with a three dimensional chronostratigraphic framework, and paleoenvironmental information are necessary. The Albemarle Embayment, a Cenozoic regional depositional basin in eastern North Carolina located on the southeast Atlantic coast of the USA, is an ideal setting to unravel these dynamic, interrelated processes.</p><p id=\"sp0105\">Micropaleontological data, coupled with sedimentologic, chronostratigraphic and seismic data provide the bases for detailed interpretations of paleoenvironmental evolution and paleoclimates in the 90&nbsp;m thick Quaternary record of the Albemarle Embayment. The data presented here come from a transect of cores drilled through a barrier island complex in the central Albemarle Embayment. This area sits in a ramp-like setting between late Pleistocene incised valleys.</p><p id=\"sp0110\">The data document the episodic infilling of the Albemarle Embayment throughout the Quaternary as a series of transgressive–regressive (T–R) cycles, characterized by inner shelf, midshelf, and shoreface assemblages, that overlie remnants of fluvial to estuarine valley-fill. Barrier island and marginal marine deposits have a low preservation potential. Inner to mid-shelf deposits of the early Pleistocene are overlain by similar middle Pleistocene shelf sediments in the south of the study area but entirely by inner shelf deposits in the north. Late Pleistocene marine sediments are of inner shelf origin and Holocene deposits are marginal marine in nature. Pleistocene marine sediments are incised, particularly in the northern half of the embayment by lowstand paleovalleys, partly filled by fluvial/floodplain deposits and in some cases, overlain by remnants of transgressive estuarine sediments. The shallowing through time of Quaternary sediments reflects the eastward progradational geometry of the continental shelf.</p><p id=\"sp0115\">The preservation potential of marginal marine deposits (barrier island, shoreface, backbarrier deposits) is not high, except in topographic lows associated with late Pleistocene paleovalleys and inlets because the current interglacial highstand has not yet reached its highest level. Given the documented increase in rate of relative sea-level rise in this region, shallow marine conditions are likely to return to the central Albemarle Embayment in the near future.</p>","language":"English","publisher":"Elsevier","publisherLocation":"Amsterdam, Netherlands","doi":"10.1016/j.palaeo.2011.03.004","issn":"00310182","usgsCitation":"Culver, S., Farrell, K.M., Mallinson, D., Willard, D.A., Horton, B.P., Riggs, S., Thieler, E.R., Wehmiller, J.F., Parham, P., Snyder, S.W., and Hillier, C., 2011, Micropaleontologic record of Quaternary paleoenvironments in the Central Albemarle Embayment, North Carolina, U.S.A.: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 305, no. 1-4, p. 227-249, https://doi.org/10.1016/j.palaeo.2011.03.004.","productDescription":"23 p.","startPage":"227","endPage":"249","additionalOnlineFiles":"N","costCenters":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"links":[{"id":243809,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215972,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.palaeo.2011.03.004"}],"country":"United States","state":"North Carolina","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -84.462890625,\n              35.02999636902566\n            ],\n            [\n              -82.96875,\n              35.10193405724606\n            ],\n            [\n              -81.5625,\n              35.17380831799959\n            ],\n            [\n              -80.947265625,\n              35.10193405724606\n            ],\n            [\n              -79.89257812499999,\n              34.95799531086792\n            ],\n            [\n              -78.31054687499999,\n              33.578014746143985\n            ],\n            [\n              -75.05859375,\n              36.10237644873644\n            ],\n            [\n              -76.025390625,\n              36.59788913307022\n            ],\n            [\n              -81.650390625,\n              36.4566360115962\n            ],\n            [\n              -82.96875,\n              35.88905007936091\n            ],\n            [\n              -84.19921875,\n              35.53222622770337\n            ],\n            [\n              -84.462890625,\n              35.02999636902566\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"305","issue":"1-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a568de4b0c8380cd6d684","contributors":{"authors":[{"text":"Culver, Stephen J.","contributorId":79331,"corporation":false,"usgs":true,"family":"Culver","given":"Stephen J.","affiliations":[],"preferred":false,"id":448607,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Farrell, Kathleen M.","contributorId":64476,"corporation":false,"usgs":true,"family":"Farrell","given":"Kathleen","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":448605,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mallinson, David J.","contributorId":74222,"corporation":false,"usgs":true,"family":"Mallinson","given":"David J.","affiliations":[],"preferred":false,"id":448606,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Willard, Debra A. 0000-0003-4878-0942 dwillard@usgs.gov","orcid":"https://orcid.org/0000-0003-4878-0942","contributorId":2076,"corporation":false,"usgs":true,"family":"Willard","given":"Debra","email":"dwillard@usgs.gov","middleInitial":"A.","affiliations":[{"id":411,"text":"National Climate Change and Wildlife Science Center","active":true,"usgs":true},{"id":24693,"text":"Climate Research and Development","active":true,"usgs":true}],"preferred":true,"id":448599,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Horton, Benjamin P.","contributorId":63641,"corporation":false,"usgs":true,"family":"Horton","given":"Benjamin","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":448604,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Riggs, Stanley R.","contributorId":25983,"corporation":false,"usgs":true,"family":"Riggs","given":"Stanley R.","affiliations":[],"preferred":false,"id":448601,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Thieler, E. Robert 0000-0003-4311-9717 rthieler@usgs.gov","orcid":"https://orcid.org/0000-0003-4311-9717","contributorId":2488,"corporation":false,"usgs":true,"family":"Thieler","given":"E.","email":"rthieler@usgs.gov","middleInitial":"Robert","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":448600,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Wehmiller, John F.","contributorId":42220,"corporation":false,"usgs":true,"family":"Wehmiller","given":"John","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":448602,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Parham, Peter","contributorId":102294,"corporation":false,"usgs":true,"family":"Parham","given":"Peter","email":"","affiliations":[],"preferred":false,"id":448609,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Snyder, Scott W.","contributorId":101109,"corporation":false,"usgs":true,"family":"Snyder","given":"Scott","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":448608,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Hillier, Caroline","contributorId":47193,"corporation":false,"usgs":true,"family":"Hillier","given":"Caroline","email":"","affiliations":[],"preferred":false,"id":448603,"contributorType":{"id":1,"text":"Authors"},"rank":11}]}}
,{"id":70192711,"text":"70192711 - 2011 - Eocene Yegua Formation (Claiborne group) and Jackson group lignite deposits of Texas","interactions":[],"lastModifiedDate":"2020-10-22T16:32:25.331881","indexId":"70192711","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"seriesTitle":{"id":5382,"text":"AAPG Studies in Geology","active":false,"publicationSubtype":{"id":24}},"chapter":"14","title":"Eocene Yegua Formation (Claiborne group) and Jackson group lignite deposits of Texas","docAbstract":"<p><span>The lignite deposits within the upper Eocene Yegua Formation (Claiborne Group) and the overlying Jackson Group are among the coal resources that were not quantitatively assessed as part of the U.S. Geological Survey's (USGS) National Coal Resource Assessment (NCRA) program in the Gulf Coastal Plain coal province. In the past, these lignite-bearing stratigraphic units often have been evaluated together because of their geographic and stratigraphic proximity (Fisher, 1963; Kaiser, 1974; Kaiser et al., 1980; Jackson and Garner, 1982; Kaiser, 1996) (Figures 1, 2). The term “Yegua-Jackson trend“ is used informally herein for the lignite-bearing outcrops of these Late Eocene deposits in Texas. Lignite beds in the Yegua-Jackson trend generally are higher both in ash yield and sulfur content than those of the underlying Wilcox Group (Figure&nbsp;</span><a class=\"link link-reveal link-table xref-fig\" data-open=\"ch14fig2\">2</a><span>). Recent studies (Senkayi et al., 1987; Ruppert et al., 1994; Warwick et al., 1996, 1997) have shown that some lignite beds within the Yegua-Jackson trend contain partings of volcanic ash and host elevated levels of trace elements that have been identified as potentially hazardous air pollutants (HAPs) in the United States Clean Air Amendments of 1990. Lignite beds within the Yegua Formation are thin (less than or equal to 6 ft) and laterally discontinuous in comparison with most Wilcox Group deposits (Ayers, 1989a); in contrast, the Jackson Group lignite beds range up to 12 ft in total thickness and are relatively continuous laterally, extending nearly 32 mi along strike.</span></p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Geologic assessment of coal in the Gulf of Mexico coastal plain","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":"American Association of Petroleum Geologists","usgsCitation":"Hook, R.W., Warwick, P.D., Swanson, S.M., and Hackley, P.C., 2011, Eocene Yegua Formation (Claiborne group) and Jackson group lignite deposits of Texas, chap. 14 <i>of</i> Geologic assessment of coal in the Gulf of Mexico coastal plain: AAPG Studies in Geology, v. 62, p. 286-297.","productDescription":"12 p.","startPage":"286","endPage":"297","ipdsId":"IP-020063","costCenters":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"links":[{"id":350896,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://archives.datapages.com/data/specpubs/discovery14/data/001/001001/286_aapg-sp0010286.htm"},{"id":350897,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Texas","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"MultiPolygon\",\"coordinates\":[[[[-97.240849,26.411504],[-97.276425,26.521729],[-97.31073,26.556558],[-97.345822,26.700589],[-97.370438,26.723896],[-97.368343,26.795649],[-97.387459,26.820789],[-97.390078,27.156512],[-97.359963,27.304732],[-97.361796,27.359988],[-97.317277,27.46369],[-97.236882,27.598293],[-97.231383,27.632336],[-97.214099,27.631551],[-97.200743,27.650144],[-97.203474,27.684533],[-97.103326,27.789068],[-97.098874,27.82285],[-97.134489,27.825206],[-97.056713,27.842294],[-96.985745,27.954048],[-96.967807,28.020041],[-96.952618,28.01644],[-96.906004,28.076147],[-96.886233,28.084396],[-96.879424,28.131402],[-96.84538,28.108881],[-96.83003,28.111842],[-96.81042,28.126034],[-96.816443,28.174808],[-96.791958,28.188687],[-96.703838,28.198246],[-96.702659,28.211208],[-96.662462,28.227314],[-96.651856,28.251275],[-96.592934,28.296972],[-96.450998,28.337039],[-96.403206,28.371475],[-96.397846,28.343513],[-96.4137,28.327343],[-96.547774,28.270798],[-96.694666,28.18212],[-96.849624,28.064939],[-96.966996,27.950531],[-97.166682,27.676583],[-97.30447,27.407734],[-97.350398,27.268105],[-97.370941,27.161166],[-97.37913,27.047996],[-97.370731,26.909706],[-97.333028,26.736479],[-97.194644,26.306513],[-97.154271,26.066841],[-97.169842,26.077853],[-97.194458,26.27164],[-97.240849,26.411504]]],[[[-94.886539,29.510724],[-94.894747,29.52697],[-94.87675,29.507922],[-94.886539,29.510724]]],[[[-97.868235,26.056656],[-97.88653,26.066339],[-97.967358,26.051718],[-97.981335,26.067182],[-98.028759,26.06647],[-98.039239,26.041275],[-98.070021,26.047992],[-98.084755,26.070808],[-98.091038,26.059169],[-98.105505,26.067537],[-98.146622,26.049412],[-98.177897,26.074672],[-98.197046,26.056153],[-98.220673,26.076467],[-98.248806,26.073101],[-98.264514,26.085507],[-98.277218,26.098802],[-98.265698,26.12037],[-98.296195,26.120321],[-98.302979,26.11005],[-98.323828,26.121249],[-98.336837,26.166432],[-98.354645,26.15304],[-98.386694,26.157872],[-98.404433,26.182564],[-98.442536,26.199151],[-98.450976,26.219904],[-98.496684,26.212853],[-98.543852,26.234492],[-98.576188,26.235221],[-98.599154,26.257612],[-98.669397,26.23632],[-98.681167,26.26271],[-98.745272,26.303096],[-98.755242,26.3251],[-98.789822,26.331575],[-98.807348,26.369421],[-98.890965,26.357569],[-98.921277,26.381426],[-98.950186,26.380303],[-98.967587,26.398266],[-99.008003,26.395459],[-99.032316,26.412082],[-99.082002,26.39651],[-99.110855,26.426278],[-99.091635,26.476977],[-99.127782,26.525199],[-99.166742,26.536079],[-99.178064,26.620547],[-99.209948,26.693938],[-99.208907,26.724761],[-99.240023,26.745851],[-99.242444,26.788262],[-99.268613,26.843213],[-99.295146,26.86544],[-99.316753,26.865831],[-99.3289,26.879761],[-99.324684,26.915973],[-99.379149,26.93449],[-99.393748,26.96073],[-99.377312,26.973819],[-99.415476,27.01724],[-99.42938,27.010833],[-99.446524,27.023008],[-99.452316,27.062669],[-99.429209,27.090982],[-99.442123,27.106839],[-99.426348,27.176262],[-99.441549,27.24992],[-99.463309,27.268437],[-99.492407,27.264118],[-99.494604,27.303542],[-99.536443,27.312538],[-99.504837,27.338289],[-99.487521,27.412396],[-99.495104,27.451518],[-99.480419,27.481596],[-99.497519,27.500496],[-99.52582,27.496696],[-99.515978,27.572131],[-99.55495,27.614454],[-99.580006,27.602251],[-99.578099,27.619196],[-99.594038,27.638573],[-99.638929,27.626758],[-99.665948,27.635968],[-99.668942,27.659974],[-99.711511,27.658365],[-99.77074,27.732134],[-99.796342,27.735586],[-99.813086,27.773952],[-99.835127,27.762881],[-99.850877,27.793974],[-99.877677,27.799427],[-99.876003,27.837968],[-99.904385,27.875284],[-99.895828,27.904178],[-99.937142,27.940537],[-99.931812,27.980967],[-99.991447,27.99456],[-100.017914,28.064787],[-100.053123,28.08473],[-100.083393,28.144035],[-100.208059,28.190383],[-100.22363,28.235224],[-100.2462,28.234092],[-100.289384,28.273491],[-100.286471,28.312296],[-100.341869,28.384953],[-100.349586,28.402604],[-100.337797,28.44296],[-100.368288,28.477196],[-100.333814,28.499252],[-100.38886,28.515748],[-100.411414,28.551899],[-100.398385,28.584884],[-100.44732,28.609325],[-100.445529,28.637144],[-100.495863,28.658569],[-100.510055,28.690723],[-100.507613,28.740599],[-100.533017,28.76328],[-100.53583,28.805888],[-100.547324,28.825817],[-100.57051,28.826317],[-100.602054,28.901944],[-100.640568,28.914212],[-100.651512,28.943432],[-100.645894,28.986421],[-100.674656,29.099777],[-100.772649,29.168492],[-100.767059,29.195287],[-100.785521,29.228137],[-100.795681,29.22773],[-100.797671,29.246943],[-100.876049,29.279585],[-100.886842,29.307848],[-100.948972,29.347246],[-101.004207,29.364772],[-101.060151,29.458661],[-101.151877,29.477005],[-101.173821,29.514566],[-101.254895,29.520342],[-101.242023,29.592512],[-101.259127,29.607284],[-101.307332,29.587847],[-101.311219,29.648491],[-101.361756,29.657821],[-101.415402,29.756561],[-101.441059,29.753451],[-101.475269,29.780663],[-101.522695,29.759671],[-101.546797,29.796991],[-101.582562,29.771334],[-101.625958,29.771063],[-101.646418,29.754304],[-101.662453,29.77128],[-101.706636,29.762737],[-101.852604,29.801895],[-101.922585,29.790161],[-101.974548,29.810276],[-101.987539,29.801057],[-102.034759,29.804028],[-102.050044,29.78507],[-102.115682,29.79239],[-102.159601,29.814356],[-102.181894,29.846034],[-102.227553,29.843534],[-102.315389,29.87992],[-102.364542,29.845387],[-102.386678,29.76688],[-102.508313,29.783219],[-102.513381,29.76576],[-102.539417,29.751629],[-102.559343,29.760377],[-102.630151,29.734315],[-102.670971,29.741954],[-102.698347,29.695591],[-102.693466,29.676507],[-102.742031,29.632142],[-102.739991,29.599041],[-102.768341,29.594734],[-102.771429,29.548546],[-102.808692,29.522319],[-102.807327,29.494009],[-102.832539,29.433109],[-102.824564,29.399558],[-102.843021,29.357988],[-102.879534,29.353327],[-102.888328,29.291947],[-102.906296,29.260011],[-102.871347,29.241625],[-102.866846,29.225015],[-102.890064,29.208814],[-102.915866,29.215878],[-102.917805,29.190697],[-102.944911,29.18882],[-102.953475,29.176308],[-102.989432,29.183174],[-103.015028,29.12577],[-103.035683,29.103029],[-103.074407,29.088534],[-103.100266,29.0577],[-103.113922,28.988547],[-103.156646,28.972831],[-103.227801,28.991532],[-103.239109,28.981651],[-103.260308,28.989731],[-103.28119,28.982138],[-103.341463,29.041224],[-103.355428,29.021529],[-103.427754,29.042334],[-103.471265,29.073115],[-103.503236,29.11911],[-103.524613,29.120998],[-103.523384,29.133389],[-103.558679,29.154962],[-103.645635,29.159286],[-103.71377,29.185008],[-103.816642,29.270927],[-103.975235,29.296017],[-104.038282,29.320156],[-104.106467,29.373127],[-104.166563,29.399352],[-104.233487,29.492734],[-104.318074,29.527938],[-104.334811,29.519463],[-104.381041,29.543406],[-104.399591,29.572319],[-104.507568,29.639624],[-104.539761,29.676074],[-104.565688,29.770462],[-104.679772,29.924659],[-104.679661,29.975272],[-104.706874,30.050685],[-104.685003,30.085643],[-104.695366,30.13213],[-104.687296,30.179464],[-104.713166,30.237957],[-104.733822,30.261221],[-104.749664,30.26126],[-104.761634,30.301148],[-104.809794,30.334926],[-104.824314,30.370466],[-104.859521,30.390413],[-104.85242,30.418792],[-104.876787,30.511004],[-104.924796,30.604832],[-104.967167,30.608107],[-105.002057,30.680972],[-105.062334,30.686303],[-105.113816,30.746001],[-105.152362,30.751452],[-105.195144,30.792138],[-105.255416,30.797029],[-105.287238,30.822206],[-105.314863,30.816961],[-105.360672,30.847384],[-105.394242,30.852979],[-105.399609,30.888941],[-105.533088,30.984859],[-105.55743,30.990229],[-105.60333,31.082625],[-105.64189,31.098322],[-105.646731,31.113908],[-105.709491,31.136375],[-105.742678,31.164897],[-105.773257,31.166897],[-105.779725,31.191283],[-105.869353,31.288634],[-105.938452,31.318735],[-105.953943,31.364749],[-106.004926,31.392458],[-106.080258,31.398702],[-106.203969,31.465378],[-106.246203,31.541153],[-106.280811,31.562062],[-106.303536,31.620413],[-106.378039,31.72831],[-106.451541,31.764808],[-106.484642,31.747809],[-106.542097,31.802146],[-106.602727,31.825024],[-106.605845,31.846305],[-106.635926,31.866235],[-106.629197,31.883717],[-106.645296,31.894859],[-106.614346,31.918003],[-106.623933,31.925335],[-106.614702,31.956],[-106.622819,31.952891],[-106.618745,31.966955],[-106.638186,31.97682],[-106.618486,32.000495],[-103.064423,32.000518],[-103.064625,32.999899],[-103.043531,34.018014],[-103.041924,36.500439],[-100.003762,36.499699],[-100.000381,34.560509],[-99.929334,34.576714],[-99.825325,34.497596],[-99.754248,34.421289],[-99.696462,34.381036],[-99.665992,34.374185],[-99.600026,34.374688],[-99.569696,34.418418],[-99.499875,34.409608],[-99.430995,34.373414],[-99.399603,34.375079],[-99.394956,34.442099],[-99.381011,34.456936],[-99.358795,34.455863],[-99.318363,34.408296],[-99.289922,34.414731],[-99.264167,34.405149],[-99.25898,34.391243],[-99.273958,34.38756],[-99.242945,34.372668],[-99.233274,34.344101],[-99.210716,34.336304],[-99.211648,34.292232],[-99.19457,34.272424],[-99.189511,34.214312],[-99.159016,34.20888],[-99.130609,34.219408],[-99.126567,34.203004],[-99.079535,34.211518],[-99.048792,34.198209],[-99.013075,34.203222],[-98.990852,34.221633],[-98.974132,34.203566],[-98.952513,34.21265],[-98.909349,34.177499],[-98.872922,34.166584],[-98.868116,34.149635],[-98.8579,34.159627],[-98.812954,34.158444],[-98.749291,34.124238],[-98.735471,34.135208],[-98.696518,34.133521],[-98.648073,34.164441],[-98.603978,34.160249],[-98.577136,34.148962],[-98.486328,34.062598],[-98.414426,34.085074],[-98.384381,34.146317],[-98.367494,34.156191],[-98.16912,34.114171],[-98.114506,34.154727],[-98.09066,34.12198],[-98.120208,34.072127],[-98.099096,34.048639],[-98.104022,34.036233],[-98.088203,34.005481],[-98.027672,33.993357],[-97.978243,34.005387],[-97.947572,33.991053],[-97.974173,33.942832],[-97.955511,33.938186],[-97.957155,33.914454],[-97.983552,33.904002],[-97.967777,33.88243],[-97.877387,33.850236],[-97.834333,33.857671],[-97.784657,33.890632],[-97.783717,33.91056],[-97.76377,33.914241],[-97.762768,33.934396],[-97.725289,33.941045],[-97.69311,33.983699],[-97.671772,33.99137],[-97.589598,33.953554],[-97.589254,33.903922],[-97.551541,33.897947],[-97.50096,33.919643],[-97.460376,33.903948],[-97.451469,33.87093],[-97.462857,33.841772],[-97.426493,33.819398],[-97.365507,33.823763],[-97.33294,33.87444],[-97.315913,33.865838],[-97.299245,33.880175],[-97.256625,33.863286],[-97.24618,33.900344],[-97.210921,33.916064],[-97.179609,33.89225],[-97.166629,33.847311],[-97.203514,33.821825],[-97.205431,33.801488],[-97.172192,33.737545],[-97.126102,33.716941],[-97.086195,33.743933],[-97.087999,33.808747],[-97.058623,33.818752],[-97.052209,33.841737],[-97.023899,33.844213],[-96.985567,33.886522],[-96.996183,33.941728],[-96.979415,33.956178],[-96.973807,33.935697],[-96.9163,33.957798],[-96.875281,33.860505],[-96.85609,33.84749],[-96.837413,33.871349],[-96.794276,33.868886],[-96.761588,33.824406],[-96.704457,33.835021],[-96.667187,33.91694],[-96.630117,33.895422],[-96.592948,33.895616],[-96.590112,33.880665],[-96.625399,33.856542],[-96.623155,33.841483],[-96.572937,33.819098],[-96.523863,33.818114],[-96.502286,33.77346],[-96.422643,33.776041],[-96.348306,33.686379],[-96.309964,33.710489],[-96.294867,33.764771],[-96.277269,33.769735],[-96.220521,33.74739],[-96.178059,33.760518],[-96.162757,33.788769],[-96.178964,33.810553],[-96.150765,33.816987],[-96.15163,33.831946],[-96.138905,33.839159],[-96.09936,33.83047],[-96.101349,33.845721],[-96.005296,33.845505],[-95.991487,33.866869],[-95.951609,33.857017],[-95.936132,33.886826],[-95.831948,33.835161],[-95.821666,33.856633],[-95.805149,33.861304],[-95.776255,33.845145],[-95.75431,33.853992],[-95.761916,33.883402],[-95.747335,33.895756],[-95.696962,33.885218],[-95.669978,33.905844],[-95.636978,33.906613],[-95.599678,33.934247],[-95.556915,33.92702],[-95.545197,33.880294],[-95.515302,33.891142],[-95.492028,33.874822],[-95.461499,33.883686],[-95.464211,33.873372],[-95.44737,33.86885],[-95.339122,33.868873],[-95.334523,33.885788],[-95.283445,33.877746],[-95.280351,33.896751],[-95.255747,33.902939],[-95.252906,33.933648],[-95.219358,33.961567],[-95.121184,33.931307],[-95.093929,33.895963],[-95.061065,33.895292],[-95.049025,33.86409],[-95.008376,33.866089],[-94.983303,33.851354],[-94.976208,33.859847],[-94.948716,33.818023],[-94.91945,33.810176],[-94.919614,33.786305],[-94.879218,33.764912],[-94.8693,33.745871],[-94.830804,33.740068],[-94.817427,33.752172],[-94.798634,33.744527],[-94.775064,33.755038],[-94.762961,33.731787],[-94.742576,33.727009],[-94.732384,33.700254],[-94.714865,33.707261],[-94.710725,33.691654],[-94.684792,33.684353],[-94.659167,33.692138],[-94.646113,33.6693],[-94.57962,33.677623],[-94.520725,33.616567],[-94.491503,33.625115],[-94.485875,33.637867],[-94.448637,33.642766],[-94.468086,33.599436],[-94.430039,33.591124],[-94.413155,33.569368],[-94.378076,33.577019],[-94.397398,33.562314],[-94.389515,33.546778],[-94.355945,33.54318],[-94.345513,33.567313],[-94.309582,33.551673],[-94.289129,33.582144],[-94.280849,33.577187],[-94.290901,33.558872],[-94.27909,33.557026],[-94.245932,33.589114],[-94.237975,33.577757],[-94.250197,33.556765],[-94.226392,33.552912],[-94.205634,33.567229],[-94.193248,33.556154],[-94.192483,33.570425],[-94.217408,33.57926],[-94.183913,33.594682],[-94.152626,33.575923],[-94.146048,33.581975],[-94.14852,33.565678],[-94.136864,33.571],[-94.128658,33.550952],[-94.088943,33.575322],[-94.061283,33.568805],[-94.055663,33.561887],[-94.073744,33.558285],[-94.06548,33.550909],[-94.04604,33.551321],[-94.04272,31.999265],[-94.018664,31.990843],[-93.971712,31.920384],[-93.923929,31.88985],[-93.904766,31.890599],[-93.874761,31.821661],[-93.827451,31.777741],[-93.830647,31.745811],[-93.802694,31.697783],[-93.826462,31.666919],[-93.816838,31.622509],[-93.838057,31.606795],[-93.834924,31.586211],[-93.798087,31.534044],[-93.743376,31.525196],[-93.725925,31.504092],[-93.74987,31.475276],[-93.70093,31.437784],[-93.704879,31.410881],[-93.674117,31.397681],[-93.665052,31.363886],[-93.687851,31.309835],[-93.642516,31.269508],[-93.620343,31.271025],[-93.598828,31.174679],[-93.588503,31.165581],[-93.535097,31.185614],[-93.551693,31.097258],[-93.52301,31.065241],[-93.516943,31.032584],[-93.539526,31.008498],[-93.566017,31.004567],[-93.571906,30.987614],[-93.526245,30.939411],[-93.567788,30.888302],[-93.554057,30.824941],[-93.561666,30.807739],[-93.584265,30.796663],[-93.592828,30.763986],[-93.619129,30.742002],[-93.611192,30.718053],[-93.629904,30.67994],[-93.6831,30.640763],[-93.684329,30.592586],[-93.727844,30.57407],[-93.729195,30.544842],[-93.740253,30.539569],[-93.714322,30.518562],[-93.697828,30.443838],[-93.757654,30.390423],[-93.765822,30.333318],[-93.708645,30.288317],[-93.705083,30.242752],[-93.720946,30.209852],[-93.688212,30.141376],[-93.701252,30.137376],[-93.702436,30.112721],[-93.732485,30.088914],[-93.70082,30.056274],[-93.720805,30.053043],[-93.739734,30.023987],[-93.786935,29.99058],[-93.838374,29.882855],[-93.927992,29.80964],[-93.926504,29.78956],[-93.89847,29.771577],[-93.891637,29.744618],[-93.873941,29.73777],[-93.837971,29.690619],[-93.866981,29.673085],[-94.001406,29.681486],[-94.132577,29.646217],[-94.594853,29.467903],[-94.694158,29.415632],[-94.731047,29.369141],[-94.778691,29.361483],[-94.783131,29.375642],[-94.766848,29.393489],[-94.6724,29.476843],[-94.608557,29.483345],[-94.566674,29.531988],[-94.532348,29.5178],[-94.495025,29.525031],[-94.503429,29.54325],[-94.522421,29.545672],[-94.553988,29.573882],[-94.740699,29.525858],[-94.783296,29.535314],[-94.78954,29.546494],[-94.755237,29.562782],[-94.708741,29.625226],[-94.693154,29.694453],[-94.695317,29.723052],[-94.735271,29.785433],[-94.816085,29.75671],[-94.851108,29.721373],[-94.872551,29.67125],[-94.893107,29.661336],[-94.915413,29.656614],[-94.936089,29.692704],[-94.965963,29.70033],[-95.015636,29.639457],[-94.982936,29.60167],[-95.016889,29.548303],[-94.981916,29.511141],[-94.909898,29.49691],[-94.930861,29.450504],[-94.8908,29.433432],[-94.893994,29.30817],[-94.921593,29.281556],[-94.952526,29.290122],[-95.099101,29.173529],[-95.151925,29.151162],[-95.16525,29.113566],[-95.136221,29.084537],[-94.879239,29.285839],[-94.824953,29.306005],[-94.822307,29.344254],[-94.810696,29.353435],[-94.784895,29.335535],[-94.72253,29.331446],[-95.081773,29.111222],[-95.38239,28.866348],[-95.439594,28.859022],[-95.812504,28.664942],[-96.220376,28.491966],[-96.378616,28.383909],[-96.37596,28.401682],[-96.335119,28.437795],[-96.223825,28.495067],[-96.21505,28.509679],[-95.98616,28.606319],[-95.978526,28.650594],[-95.996338,28.658736],[-96.006516,28.648049],[-96.047737,28.649067],[-96.221784,28.580364],[-96.233998,28.596649],[-96.212624,28.622604],[-96.230944,28.641433],[-96.192267,28.687744],[-96.19583,28.69894],[-96.222802,28.698431],[-96.287942,28.683164],[-96.304227,28.671459],[-96.303718,28.644996],[-96.373439,28.626675],[-96.487943,28.569677],[-96.485907,28.607845],[-96.510844,28.61497],[-96.499648,28.635835],[-96.563262,28.644487],[-96.572931,28.667897],[-96.561226,28.696395],[-96.584091,28.722798],[-96.664534,28.696904],[-96.61059,28.638889],[-96.61975,28.627693],[-96.611099,28.585962],[-96.565297,28.5824],[-96.561226,28.570695],[-96.526111,28.557972],[-96.505755,28.525911],[-96.402446,28.449066],[-96.59176,28.357462],[-96.672677,28.335579],[-96.705247,28.348811],[-96.710336,28.406827],[-96.772209,28.408074],[-96.794554,28.365688],[-96.791761,28.31217],[-96.809573,28.290287],[-96.787181,28.255681],[-96.800413,28.224128],[-96.934765,28.123873],[-96.962755,28.123365],[-97.027014,28.148408],[-97.021303,28.1841],[-97.037008,28.185528],[-97.153601,28.13318],[-97.214039,28.087494],[-97.21535,28.076575],[-97.176444,28.059892],[-97.137421,28.057037],[-97.025693,28.11216],[-97.035528,28.084688],[-97.025859,28.041939],[-97.129168,27.919801],[-97.186709,27.825453],[-97.219738,27.823939],[-97.250797,27.876035],[-97.272253,27.881427],[-97.379042,27.837867],[-97.393291,27.782905],[-97.368355,27.741683],[-97.316446,27.712676],[-97.253955,27.696696],[-97.296598,27.613947],[-97.294054,27.5941],[-97.321535,27.571199],[-97.401942,27.335574],[-97.508304,27.275014],[-97.532223,27.278577],[-97.544437,27.284175],[-97.498126,27.308602],[-97.502706,27.322343],[-97.483877,27.338628],[-97.48693,27.358984],[-97.501688,27.366618],[-97.609068,27.285193],[-97.63146,27.28621],[-97.640111,27.270943],[-97.628916,27.242953],[-97.54291,27.229213],[-97.42408,27.264073],[-97.443673,27.116235],[-97.45665,27.099695],[-97.495836,27.094098],[-97.477515,27.066108],[-97.48693,27.057711],[-97.486676,27.03481],[-97.473444,27.02285],[-97.478533,26.999186],[-97.555378,26.99028],[-97.555378,26.93888],[-97.540874,26.90631],[-97.563266,26.842188],[-97.509831,26.803511],[-97.468609,26.740915],[-97.445708,26.609362],[-97.416955,26.553637],[-97.441383,26.455418],[-97.41721,26.44982],[-97.42179,26.417249],[-97.382485,26.411326],[-97.369627,26.394603],[-97.388965,26.36585],[-97.387947,26.330481],[-97.358176,26.356435],[-97.335275,26.355672],[-97.336802,26.331753],[-97.352833,26.318521],[-97.343927,26.267376],[-97.311866,26.273737],[-97.307031,26.253126],[-97.32128,26.236078],[-97.296598,26.200709],[-97.306776,26.159487],[-97.282094,26.120301],[-97.294054,26.11394],[-97.270898,26.086459],[-97.199651,26.077044],[-97.195071,26.04193],[-97.224842,26.027426],[-97.219244,25.996128],[-97.208557,25.991802],[-97.167208,26.007069],[-97.162628,26.023482],[-97.18273,26.053126],[-97.152009,26.062108],[-97.146294,25.955606],[-97.276707,25.952147],[-97.277163,25.935438],[-97.350398,25.925241],[-97.37443,25.907444],[-97.360082,25.868874],[-97.372864,25.840117],[-97.422636,25.840378],[-97.445113,25.850026],[-97.454727,25.879337],[-97.521762,25.886458],[-97.546421,25.934077],[-97.582565,25.937857],[-97.583044,25.955443],[-97.598043,25.957556],[-97.643708,26.016943],[-97.758838,26.032131],[-97.789823,26.04246],[-97.801344,26.060017],[-97.868235,26.056656]]]]},\"properties\":{\"name\":\"Texas\",\"nation\":\"USA  \"}}]}","volume":"62","publishingServiceCenter":{"id":9,"text":"Reston PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5a743589e4b0a9a2e9e25cc8","contributors":{"editors":[{"text":"Warwick, Peter D. 0000-0002-3152-7783 pwarwick@usgs.gov","orcid":"https://orcid.org/0000-0002-3152-7783","contributorId":762,"corporation":false,"usgs":true,"family":"Warwick","given":"Peter","email":"pwarwick@usgs.gov","middleInitial":"D.","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":false,"id":726391,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Karlsen, Alexander K.","contributorId":44089,"corporation":false,"usgs":false,"family":"Karlsen","given":"Alexander K.","affiliations":[],"preferred":false,"id":726392,"contributorType":{"id":2,"text":"Editors"},"rank":2},{"text":"Merrill, Matthew D. 0000-0003-3766-847X mmerrill@usgs.gov","orcid":"https://orcid.org/0000-0003-3766-847X","contributorId":2584,"corporation":false,"usgs":true,"family":"Merrill","given":"Matthew D.","email":"mmerrill@usgs.gov","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":false,"id":726393,"contributorType":{"id":2,"text":"Editors"},"rank":3},{"text":"Valentine, Brett J. 0000-0002-8678-2431 bvalentine@usgs.gov","orcid":"https://orcid.org/0000-0002-8678-2431","contributorId":3846,"corporation":false,"usgs":true,"family":"Valentine","given":"Brett","email":"bvalentine@usgs.gov","middleInitial":"J.","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true},{"id":255,"text":"Energy Resources Program","active":true,"usgs":true}],"preferred":true,"id":726394,"contributorType":{"id":2,"text":"Editors"},"rank":4}],"authors":[{"text":"Hook, Robert W.","contributorId":26006,"corporation":false,"usgs":true,"family":"Hook","given":"Robert","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":716752,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Warwick, Peter D. 0000-0002-3152-7783 pwarwick@usgs.gov","orcid":"https://orcid.org/0000-0002-3152-7783","contributorId":762,"corporation":false,"usgs":true,"family":"Warwick","given":"Peter","email":"pwarwick@usgs.gov","middleInitial":"D.","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":false,"id":716753,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Swanson, Sharon M. 0000-0002-4235-1736 smswanson@usgs.gov","orcid":"https://orcid.org/0000-0002-4235-1736","contributorId":590,"corporation":false,"usgs":true,"family":"Swanson","given":"Sharon","email":"smswanson@usgs.gov","middleInitial":"M.","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":716754,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hackley, Paul C. 0000-0002-5957-2551 phackley@usgs.gov","orcid":"https://orcid.org/0000-0002-5957-2551","contributorId":592,"corporation":false,"usgs":true,"family":"Hackley","given":"Paul","email":"phackley@usgs.gov","middleInitial":"C.","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true},{"id":255,"text":"Energy Resources Program","active":true,"usgs":true}],"preferred":true,"id":716755,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70035054,"text":"70035054 - 2011 - Rapid reaction of nanomolar Mn(II) with superoxide radical in seawater and simulated freshwater","interactions":[],"lastModifiedDate":"2021-03-02T20:06:50.512484","indexId":"70035054","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1565,"text":"Environmental Science & Technology","onlineIssn":"1520-5851","printIssn":"0013-936X","active":true,"publicationSubtype":{"id":10}},"title":"Rapid reaction of nanomolar Mn(II) with superoxide radical in seawater and simulated freshwater","docAbstract":"<p><span>Superoxide radical (O</span><sub>2</sub><sup>−</sup><span>) has been proposed to be an important participant in oxidation−reduction reactions of metal ions in natural waters. Here, we studied the reaction of nanomolar Mn(II) with O</span><sub>2</sub><sup>−</sup><span>&nbsp;in seawater and simulated freshwater, using chemiluminescence detection of O</span><sub>2</sub><sup>−</sup><span>&nbsp;to quantify the effect of Mn(II) on the decay kinetics of O</span><sub>2</sub><sup>−</sup><span>. With 3−24 nM added [Mn(II)] and &lt;0.7 nM [O</span><sub>2</sub><sup>−</sup><span>], we observed effective second-order rate constants for the reaction of Mn(II) with O</span><sub>2</sub><sup>−</sup><span>&nbsp;of 6 × 10</span><sup>6</sup><span>&nbsp;to 1 × 10</span><sup>7</sup><span>&nbsp;M</span><sup>−1</sup><span>·s</span><sup>−1</sup><span>&nbsp;in various seawater samples. In simulated freshwater (pH 8.6), the effective rate constant of Mn(II) reaction with O</span><sub>2</sub><sup>−</sup><span>&nbsp;was somewhat lower, 1.6 × 10</span><sup>6</sup><span>&nbsp;M</span><sup>−1</sup><span>·s</span><sup>−1</sup><span>. With higher initial [O</span><sub>2</sub><sup>−</sup><span>], in excess of added [Mn(II)], catalytic decay of O</span><sub>2</sub><sup>−</sup><span>&nbsp;by Mn was observed, implying that a Mn(II/III) redox cycle occurred. Our results show that reactions with nanomolar Mn(II) could be an important sink of O</span><sub>2</sub><sup>−</sup><span>&nbsp;in natural waters. In addition, reaction of Mn(II) with superoxide could maintain a significant fraction of dissolved Mn in the +III oxidation state.</span></p>","language":"English","publisher":"American Chemical Society","doi":"10.1021/es104014s","issn":"0013936X","usgsCitation":"Hansard, S., Easter, H., and Voelker, B.M., 2011, Rapid reaction of nanomolar Mn(II) with superoxide radical in seawater and simulated freshwater: Environmental Science & Technology, v. 45, no. 7, p. 2811-2817, https://doi.org/10.1021/es104014s.","productDescription":"7 p.","startPage":"2811","endPage":"2817","costCenters":[],"links":[{"id":243252,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215445,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1021/es104014s"}],"volume":"45","issue":"7","noUsgsAuthors":false,"publicationDate":"2011-03-04","publicationStatus":"PW","scienceBaseUri":"505a94fbe4b0c8380cd8172e","contributors":{"authors":[{"text":"Hansard, S.P.","contributorId":19391,"corporation":false,"usgs":true,"family":"Hansard","given":"S.P.","email":"","affiliations":[],"preferred":false,"id":449060,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Easter, H.D.","contributorId":107123,"corporation":false,"usgs":true,"family":"Easter","given":"H.D.","email":"","affiliations":[],"preferred":false,"id":449062,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Voelker, Bettina M.","contributorId":74914,"corporation":false,"usgs":false,"family":"Voelker","given":"Bettina","email":"","middleInitial":"M.","affiliations":[{"id":12444,"text":"Massachusetts Institute of Technology","active":true,"usgs":false}],"preferred":false,"id":449061,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70035055,"text":"70035055 - 2011 - Pennsylvanian coniferopsid forests in sabkha facies reveal the nature of seasonal tropical biome","interactions":[],"lastModifiedDate":"2021-03-02T19:52:43.832278","indexId":"70035055","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1796,"text":"Geology","active":true,"publicationSubtype":{"id":10}},"title":"Pennsylvanian coniferopsid forests in sabkha facies reveal the nature of seasonal tropical biome","docAbstract":"<p><span>Pennsylvanian fossil forests are known from hundreds of sites across tropical Pangea, but nearly all comprise remains of humid Coal Forests. Here we report a unique occurrence of seasonally dry vegetation, preserved in growth position along &gt;5 km of strike, in the Pennsylvanian (early Kasimovian, Missourian) of New Mexico (United States). Analyses of stump anatomy, diameter, and spatial density, coupled with observations of vascular traces and associated megaflora, show that this was a deciduous, mixed-age, coniferopsid woodland (∼100 trees per hectare) with an open canopy. The coniferopsids colonized coastal sabkha facies and show tree rings, confirming growth under seasonally dry conditions. Such woodlands probably served as the source of coniferopsids that replaced Coal Forests farther east in central Pangea during drier climate phases. Thus, the newly discovered woodland helps unravel biome-scale vegetation dynamics and allows calibration of climate models.</span></p>","language":"English","publisher":"Geological Society of America.","doi":"10.1130/G31764.1","issn":"00917613","usgsCitation":"Falcon-Lang, H.J., Jud, N., John, N.W., DiMichele, W.A., Chaney, D., and Lucas, S.G., 2011, Pennsylvanian coniferopsid forests in sabkha facies reveal the nature of seasonal tropical biome: Geology, v. 39, no. 4, p. 371-374, https://doi.org/10.1130/G31764.1.","productDescription":"4 p.","startPage":"371","endPage":"374","costCenters":[],"links":[{"id":243253,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215446,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1130/G31764.1"}],"country":"United States","state":"New Mexico","county":"Socorro","otherGeospatial":"New Mexico","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -107.852783203125,\n              33.578014746143985\n            ],\n            [\n              -106.01806640624999,\n              33.578014746143985\n            ],\n            [\n              -106.01806640624999,\n              34.72355492704221\n            ],\n            [\n              -107.852783203125,\n              34.72355492704221\n            ],\n            [\n              -107.852783203125,\n              33.578014746143985\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"39","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a7653e4b0c8380cd7804d","contributors":{"authors":[{"text":"Falcon-Lang, H. J.","contributorId":41220,"corporation":false,"usgs":true,"family":"Falcon-Lang","given":"H.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":449064,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jud, N.A.","contributorId":97727,"corporation":false,"usgs":true,"family":"Jud","given":"N.A.","email":"","affiliations":[],"preferred":false,"id":449068,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"John, Nelson W.","contributorId":34348,"corporation":false,"usgs":true,"family":"John","given":"Nelson","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":449063,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"DiMichele, William A.","contributorId":97631,"corporation":false,"usgs":true,"family":"DiMichele","given":"William","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":449067,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Chaney, D.S.","contributorId":47106,"corporation":false,"usgs":true,"family":"Chaney","given":"D.S.","email":"","affiliations":[],"preferred":false,"id":449065,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Lucas, S. G.","contributorId":76934,"corporation":false,"usgs":true,"family":"Lucas","given":"S.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":449066,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70035298,"text":"70035298 - 2011 - Impacts of agricultural land use on biological integrity: A causal analysis","interactions":[],"lastModifiedDate":"2021-02-25T18:59:27.608483","indexId":"70035298","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1450,"text":"Ecological Applications","active":true,"publicationSubtype":{"id":10}},"title":"Impacts of agricultural land use on biological integrity: A causal analysis","docAbstract":"<p><span>Agricultural land use has often been linked to nutrient enrichment, habitat degradation, hydrologic alteration, and loss of biotic integrity in streams. The U.S. Geological Survey's National Water Quality Assessment Program sampled 226 stream sites located in eight agriculture‐dominated study units across the United States to investigate the geographic variability and causes of agricultural impacts on stream biotic integrity. In this analysis we used structural equation modeling (SEM) to develop a national and set of regional causal models linking agricultural land use to measured instream conditions. We then examined the direct, indirect, and total effects of agriculture on biotic integrity as it acted through multiple water quality and habitat pathways. In our nation‐wide model, cropland affected benthic communities by both altering structural habitats and by imposing water quality‐related stresses. Region‐specific modeling demonstrated that geographic context altered the relative importance of causal pathways through which agricultural activities affected stream biotic integrity. Cropland had strong negative total effects on the invertebrate community in the national, Midwest, and Western models, but a very weak effect in the Eastern Coastal Plain model. In the Western Arid and Eastern Coastal Plain study regions, cropland impacts were transmitted primarily through dissolved water quality contaminants, but in the Midwestern region, they were transmitted primarily through particulate components of water quality. Habitat effects were important in the Western Arid model, but negligible in the Midwest and Eastern Coastal Plain models. The relative effects of riparian forested wetlands also varied regionally, having positive effects on biotic integrity in the Eastern Coastal Plain and Western Arid region models, but no statistically significant effect in the Midwest. These differences in response to cropland and riparian cover suggest that best management practices and planning for the mitigation of agricultural land use impacts on stream ecosystems should be regionally focused.</span></p>","language":"English","publisher":"Ecological Society of America","doi":"10.1890/11-0077.1","issn":"10510761","usgsCitation":"Riseng, C., Wiley, M., Black, R.W., and Munn, M., 2011, Impacts of agricultural land use on biological integrity: A causal analysis: Ecological Applications, v. 21, no. 8, p. 3128-3146, https://doi.org/10.1890/11-0077.1.","productDescription":"19 p.","startPage":"3128","endPage":"3146","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":622,"text":"Washington Water Science Center","active":true,"usgs":true}],"links":[{"id":475137,"rank":0,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://hdl.handle.net/2027.42/116919","text":"External Repository"},{"id":383621,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"21","issue":"8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a38e0e4b0c8380cd61706","contributors":{"authors":[{"text":"Riseng, C.M.","contributorId":9481,"corporation":false,"usgs":true,"family":"Riseng","given":"C.M.","email":"","affiliations":[],"preferred":false,"id":450072,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wiley, M.J.","contributorId":68976,"corporation":false,"usgs":true,"family":"Wiley","given":"M.J.","email":"","affiliations":[],"preferred":false,"id":450073,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Black, Robert W. 0000-0002-4748-8213 rwblack@usgs.gov","orcid":"https://orcid.org/0000-0002-4748-8213","contributorId":1820,"corporation":false,"usgs":true,"family":"Black","given":"Robert","email":"rwblack@usgs.gov","middleInitial":"W.","affiliations":[{"id":622,"text":"Washington Water Science Center","active":true,"usgs":true}],"preferred":true,"id":450075,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Munn, M.D.","contributorId":77908,"corporation":false,"usgs":true,"family":"Munn","given":"M.D.","email":"","affiliations":[],"preferred":false,"id":450074,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70035394,"text":"70035394 - 2011 - Shallow conduit system at Kilauea Volcano, Hawaii, revealed by seismic signals associated with degassing bursts","interactions":[],"lastModifiedDate":"2012-12-10T16:10:47","indexId":"70035394","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2314,"text":"Journal of Geophysical Research B: Solid Earth","active":true,"publicationSubtype":{"id":10}},"title":"Shallow conduit system at Kilauea Volcano, Hawaii, revealed by seismic signals associated with degassing bursts","docAbstract":"Eruptive activity at the summit of Kilauea Volcano, Hawaii, beginning in March, 2008 and continuing to the present time is characterized by episodic explosive bursts of gas and ash from a vent within Halemaumau Pit Crater. These bursts are accompanied by seismic signals that are well recorded by a broadband network deployed in the summit caldera. We investigate in detail the dimensions and oscillation modes of the source of a representative burst in the 1−10 s band. An extended source is realized by a set of point sources distributed on a grid surrounding the source centroid, where the centroid position and source geometry are fixed from previous modeling of very-long-period (VLP) data in the 10–50 s band. The source time histories of all point sources are obtained simultaneously through waveform inversion carried out in the frequency domain. Short-scale noisy fluctuations of the source time histories between adjacent sources are suppressed with a smoothing constraint, whose strength is determined through a minimization of the Akaike Bayesian Information Criterion (ABIC). Waveform inversions carried out for homogeneous and heterogeneous velocity structures both image a dominant source component in the form of an east trending dike with dimensions of 2.9 × 2.9 km. The dike extends ∼2 km west and ∼0.9 km east of the VLP centroid and spans the depth range 0.2–3.1 km. The source model for a homogeneous velocity structure suggests the dike is hinged at the source centroid where it bends from a strike E 27°N with northern dip of 85° west of the centroid, to a strike E 7°N with northern dip of 80° east of the centroid. The oscillating behavior of the dike is dominated by simple harmonic modes with frequencies ∼0.2 Hz and ∼0.5 Hz, representing the fundamental mode <i>ν</i><sub>11</sub> and first degenerate mode <i>ν</i><sub>12</sub> = <i>ν</i><sub>21</sub> of the dike. Although not strongly supported by data in the 1–10 s band, a north striking dike segment is required for enhanced compatibility with the model elaborated in the 10–50 s band. This dike provides connectivity between the east trending dike and the new vent within Halemaumau Pit Crater. Waveform inversions with a dual-dike model suggest dimensions of 0.7 × 0.7 km to 2.6 × 2.6 km for this segment. Further elaboration of the complex dike system under Halemaumau does not appear to be feasible with presently available data.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geophysical Research B: Solid Earth","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"American Geophysical Union","publisherLocation":"Washington, D.C.","doi":"10.1029/2011JB008677","issn":"01480227","usgsCitation":"Chouet, B., and Dawson, P., 2011, Shallow conduit system at Kilauea Volcano, Hawaii, revealed by seismic signals associated with degassing bursts: Journal of Geophysical Research B: Solid Earth, v. 116, no. 12, https://doi.org/10.1029/2011JB008677.","productDescription":"22 p.","startPage":"B12317","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":487252,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2011jb008677","text":"Publisher Index Page"},{"id":215229,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2011JB008677"},{"id":243018,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawai'i","otherGeospatial":"Kilauea Volcano","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -155.798371,19.056854 ], [ -155.798371,19.550464 ], [ -155.016307,19.550464 ], [ -155.016307,19.056854 ], [ -155.798371,19.056854 ] ] ] } } ] }","volume":"116","issue":"12","noUsgsAuthors":false,"publicationDate":"2011-12-29","publicationStatus":"PW","scienceBaseUri":"505b8e1ae4b08c986b31872d","contributors":{"authors":[{"text":"Chouet, Bernard","contributorId":65485,"corporation":false,"usgs":true,"family":"Chouet","given":"Bernard","affiliations":[],"preferred":false,"id":450449,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dawson, Phillip","contributorId":21780,"corporation":false,"usgs":true,"family":"Dawson","given":"Phillip","affiliations":[],"preferred":false,"id":450448,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70035432,"text":"70035432 - 2011 - Correlation between deep fluids, tremor and creep along the central San Andreas fault","interactions":[],"lastModifiedDate":"2017-06-30T10:04:18","indexId":"70035432","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2840,"text":"Nature","active":true,"publicationSubtype":{"id":10}},"title":"Correlation between deep fluids, tremor and creep along the central San Andreas fault","docAbstract":"<p>The seismicity pattern along the San Andreas fault near Parkfield and Cholame, California, varies distinctly over a length of only fifty kilometres. Within the brittle crust, the presence of frictionally weak minerals, fault-weakening high fluid pressures and chemical weakening are considered possible causes of an anomalously weak fault northwest of Parkfield. Non-volcanic tremor from lower-crustal and upper-mantle depths is most pronounced about thirty kilometres southeast of Parkfield and is thought to be associated with high pore-fluid pressures at depth. Here we present geophysical evidence of fluids migrating into the creeping section of the San Andreas fault that seem to originate in the region of the uppermost mantle that also stimulates tremor, and evidence that along-strike variations in tremor activity and amplitude are related to strength variations in the lower crust and upper mantle. Interconnected fluids can explain a deep zone of anomalously low electrical resistivity that has been imaged by magnetotelluric data southwest of the Parkfield-Cholame segment. Near Cholame, where fluids seem to be trapped below a high-resistivity cap, tremor concentrates adjacent to the inferred fluids within a mechanically strong zone of high resistivity. By contrast, subvertical zones of low resistivity breach the entire crust near the drill hole of the San Andreas Fault Observatory at Depth, northwest of Parkfield, and imply pathways for deep fluids into the eastern fault block, coincident with a mechanically weak crust and the lower tremor amplitudes in the lower crust. Fluid influx to the fault system is consistent with hypotheses of fault-weakening high fluid pressures in the brittle crust.</p>","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Nature","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Springer Nature","doi":"10.1038/nature10609","issn":"00280836","usgsCitation":"Becken, M., Ritter, O., Bedrosian, P.A., and Weckmann, U., 2011, Correlation between deep fluids, tremor and creep along the central San Andreas fault: Nature, v. 480, no. 7375, p. 87-90, https://doi.org/10.1038/nature10609.","productDescription":"4 p.","startPage":"87","endPage":"90","ipdsId":"IP-026054","costCenters":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"links":[{"id":475177,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://gfzpublic.gfz-potsdam.de/pubman/item/item_244276","text":"External Repository"},{"id":243242,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215435,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1038/nature10609"}],"country":"United States","state":"California","otherGeospatial":"San Andreas fault","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -121.3275146484375,\n              35.31064272673245\n            ],\n            [\n              -120.07781982421875,\n              35.31064272673245\n            ],\n            [\n              -120.07781982421875,\n              36.28856319836237\n            ],\n            [\n              -121.3275146484375,\n              36.28856319836237\n            ],\n            [\n              -121.3275146484375,\n              35.31064272673245\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"480","issue":"7375","noUsgsAuthors":false,"publicationDate":"2011-11-30","publicationStatus":"PW","scienceBaseUri":"5059fc29e4b0c8380cd4e157","contributors":{"authors":[{"text":"Becken, M.","contributorId":79718,"corporation":false,"usgs":true,"family":"Becken","given":"M.","email":"","affiliations":[],"preferred":false,"id":450636,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ritter, O.","contributorId":33515,"corporation":false,"usgs":true,"family":"Ritter","given":"O.","email":"","affiliations":[],"preferred":false,"id":450635,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bedrosian, P. A.","contributorId":100109,"corporation":false,"usgs":true,"family":"Bedrosian","given":"P.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":450637,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Weckmann, U.","contributorId":14186,"corporation":false,"usgs":true,"family":"Weckmann","given":"U.","email":"","affiliations":[],"preferred":false,"id":450634,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70035484,"text":"70035484 - 2011 - Grassland bird use of oak barrens and dry prairies in Wisconsin","interactions":[],"lastModifiedDate":"2017-05-10T15:28:44","indexId":"70035484","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2821,"text":"Natural Areas Journal","active":true,"publicationSubtype":{"id":10}},"title":"Grassland bird use of oak barrens and dry prairies in Wisconsin","docAbstract":"<p><span>Grassland bird populations have declined more than any other group of birds in North America and are of conservation concern to state and federal agencies. We determined relative abundances of grassland birds in oak barrens and dry sand prairies&mdash;native habitat types rare in the state of Wisconsin. We also investigated the association of relative abundance, patch size, and patch vegetation. Our study was conducted May&ndash;July 2000&ndash;2002 on Fort McCoy Military Installation in Monroe County, Wisconsin. Fourteen grassland bird species were found in native habitat patches. Vesper sparrow (</span><i>Pooecetes gramineus</i><span>), grasshopper sparrow (</span><i>Ammodramus savannarum</i><span>), and field sparrow (</span><i>Spizella pusilla</i><span>) were the most abundant grassland bird species; all are species of management concern in Wisconsin. Of the most abundant species, only grasshopper sparrow relative abundance increased as patch size increased; vesper sparrow and field sparrow relative abundances decreased as patch size increased. Though found at lower relative abundances, horned larks (</span><i>Erephila alpestris</i><span>), savannah sparrows (</span><i>Passerculus sandwichensis</i><span>), and upland sandpipers (</span><i>Bartramia longicauda</i><span>) were found at higher relative abundances as patch size increased. Patch vegetation was important for some species. Vesper sparrows were found at higher abundances in patches with shorter, less dense vegetation and higher woody cover, eastern meadowlark (</span><i>Sturnella magna</i><span>) relative abundances were higher in patches with higher proportions of grass, and dickcissel (</span><i>Spiza americana</i><span>) relative abundances were higher in patches with taller, denser vegetation and lower proportions of litter. Native habitats are important for grassland bird species of management concern and large patches are particularly important for some of them.</span></p>","language":"English","publisher":"Natural Areas Association","doi":"10.3375/043.031.0104","issn":"08858608","usgsCitation":"Vos, S.M., and Ribic, C.A., 2011, Grassland bird use of oak barrens and dry prairies in Wisconsin: Natural Areas Journal, v. 31, no. 1, p. 26-33, https://doi.org/10.3375/043.031.0104.","productDescription":"8 p.","startPage":"26","endPage":"33","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-010400","costCenters":[{"id":199,"text":"Coop Res Unit Leetown","active":true,"usgs":true}],"links":[{"id":243046,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Wisconsin","county":"Monroe County","otherGeospatial":"Fort McCoy Military Installation","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -90.72818756103516,\n              43.90308736194095\n            ],\n            [\n              -90.7280158996582,\n              43.93177522301226\n            ],\n            [\n              -90.67977905273438,\n              43.93202247202807\n            ],\n            [\n              -90.68055152893065,\n              43.94333301525373\n            ],\n            [\n              -90.6507682800293,\n              43.94036652354269\n            ],\n            [\n              -90.65051078796387,\n              43.92806636442745\n            ],\n            [\n              -90.64510345458984,\n              43.927942731824864\n            ],\n            [\n              -90.6430435180664,\n              43.924604554419055\n            ],\n            [\n              -90.62896728515625,\n              43.9247281939599\n            ],\n            [\n              -90.61197280883789,\n              43.931898847648675\n            ],\n            [\n              -90.61162948608398,\n              43.949327348785225\n            ],\n            [\n              -90.60201644897461,\n              43.95315846180105\n            ],\n            [\n              -90.60201644897461,\n              43.95661860967737\n            ],\n            [\n              -90.61214447021484,\n              43.957112900069944\n            ],\n            [\n              -90.61180114746094,\n              43.963785417933046\n            ],\n            [\n              -90.60665130615234,\n              43.96427964870526\n            ],\n            [\n              -90.60630798339844,\n              43.97132199043892\n            ],\n            [\n              -90.59703826904295,\n              43.97922818610027\n            ],\n            [\n              -90.59738159179686,\n              43.98589821991874\n            ],\n            [\n              -90.58794021606445,\n              43.990220989720875\n            ],\n            [\n              -90.5881118774414,\n              43.996889788430266\n            ],\n            [\n              -90.59309005737303,\n              44.00034738902637\n            ],\n            [\n              -90.61197280883789,\n              44.00034738902637\n            ],\n            [\n              -90.62227249145508,\n              44.00763238784148\n            ],\n            [\n              -90.6320571899414,\n              44.0077558546877\n            ],\n            [\n              -90.63222885131835,\n              44.01503994372521\n            ],\n            [\n              -90.62742233276367,\n              44.01528684632061\n            ],\n            [\n              -90.62793731689452,\n              44.04194627571353\n            ],\n            [\n              -90.62295913696289,\n              44.04318021813762\n            ],\n            [\n              -90.6233024597168,\n              44.06859371405886\n            ],\n            [\n              -90.62072753906249,\n              44.083146046165986\n            ],\n            [\n              -90.61334609985352,\n              44.09288670917468\n            ],\n            [\n              -90.61403274536133,\n              44.160041248599825\n            ],\n            [\n              -90.67239761352539,\n              44.15930234819824\n            ],\n            [\n              -90.67359924316406,\n              44.14070364125291\n            ],\n            [\n              -90.6782341003418,\n              44.13700783605129\n            ],\n            [\n              -90.68286895751952,\n              44.13540624862203\n            ],\n            [\n              -90.68424224853516,\n              44.130354803729276\n            ],\n            [\n              -90.70106506347656,\n              44.13023159235851\n            ],\n            [\n              -90.70106506347656,\n              44.137377426981466\n            ],\n            [\n              -90.70672988891602,\n              44.137377426981466\n            ],\n            [\n              -90.70724487304688,\n              44.14415285072635\n            ],\n            [\n              -90.73265075683594,\n              44.1439064853041\n            ],\n            [\n              -90.73316574096678,\n              44.12209907358672\n            ],\n            [\n              -90.73797225952148,\n              44.12185261614565\n            ],\n            [\n              -90.73745727539061,\n              44.1002836092881\n            ],\n            [\n              -90.73299407958984,\n              44.100160335201814\n            ],\n            [\n              -90.73368072509766,\n              44.05897241123968\n            ],\n            [\n              -90.74329376220703,\n              44.05897241123968\n            ],\n            [\n              -90.74226379394531,\n              44.04490769435363\n            ],\n            [\n              -90.73213577270508,\n              44.03639321675599\n            ],\n            [\n              -90.7309341430664,\n              43.99985345841993\n            ],\n            [\n              -90.71737289428711,\n              44.00010042423714\n            ],\n            [\n              -90.72029113769531,\n              43.990097486381146\n            ],\n            [\n              -90.72990417480467,\n              43.98935646094579\n            ],\n            [\n              -90.72956085205077,\n              43.98033991044409\n            ],\n            [\n              -90.75033187866211,\n              43.96427964870526\n            ],\n            [\n              -90.74947357177734,\n              43.94438361223957\n            ],\n            [\n              -90.76509475708006,\n              43.93894502714223\n            ],\n            [\n              -90.76492309570312,\n              43.9323933436245\n            ],\n            [\n              -90.76028823852539,\n              43.93226972001598\n            ],\n            [\n              -90.76028823852539,\n              43.92868452358579\n            ],\n            [\n              -90.76492309570312,\n              43.92843726069337\n            ],\n            [\n              -90.76526641845703,\n              43.92138983615944\n            ],\n            [\n              -90.76011657714844,\n              43.921142542944274\n            ],\n            [\n              -90.75960159301758,\n              43.91743302137062\n            ],\n            [\n              -90.7635498046875,\n              43.917185711709344\n            ],\n            [\n              -90.75908660888672,\n              43.913599606112754\n            ],\n            [\n              -90.74810028076172,\n              43.91273396203895\n            ],\n            [\n              -90.74020385742188,\n              43.91026062387522\n            ],\n            [\n              -90.73728561401367,\n              43.90296367743057\n            ],\n            [\n              -90.72818756103516,\n              43.90308736194095\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"31","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a29e5e4b0c8380cd5ad19","contributors":{"authors":[{"text":"Vos, Susan M.","contributorId":15425,"corporation":false,"usgs":false,"family":"Vos","given":"Susan","email":"","middleInitial":"M.","affiliations":[{"id":13018,"text":"Department of Forest and Wildlife Ecology, University of Wisconsin, Madison","active":true,"usgs":false}],"preferred":false,"id":450858,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ribic, Christine A. caribic@usgs.gov","contributorId":831,"corporation":false,"usgs":true,"family":"Ribic","given":"Christine","email":"caribic@usgs.gov","middleInitial":"A.","affiliations":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"preferred":false,"id":450857,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70003749,"text":"70003749 - 2011 - Comparisons of watershed sulfur budgets in southeast Canada and northeast US: New approaches and implications","interactions":[],"lastModifiedDate":"2021-03-22T14:56:58.941982","indexId":"70003749","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1007,"text":"Biogeochemistry","active":true,"publicationSubtype":{"id":10}},"title":"Comparisons of watershed sulfur budgets in southeast Canada and northeast US: New approaches and implications","docAbstract":"<p><span>Most of eastern North America receives elevated levels of atmospheric deposition of sulfur (S) that result from anthropogenic SO</span><sub>2</sub><span>&nbsp;emissions from fossil fuel combustion. Atmospheric S deposition has acidified sensitive terrestrial and aquatic ecosystems in this region; however, deposition has been declining since the 1970s, resulting in some recovery in previously acidified aquatic ecosystems. Accurate watershed S mass balances help to evaluate the extent to which atmospheric S deposition is retained within ecosystems, and whether internal cycling sources and biogeochemical processes may be affecting the rate of recovery from decreasing S atmospheric loads. This study evaluated S mass balances for 15 sites with watersheds in southeastern Canada and northeastern US for the period 1985 to 2002. These 15 sites included nine in Canada (Turkey Lakes, ON; Harp Lake, ON; Plastic Lake, ON; Hermine, QC; Lake Laflamme, QC; Lake Clair, QC; Lake Tirasse, QC; Mersey, NS; Moosepit, NS) and six in the US (Arbutus Lake, NY; Biscuit Brook, NY; Sleepers River, VT; Hubbard Brook Experimental Forest, NH; Cone Pond, NH; Bear Brook Watershed, ME). Annual S wet deposition inputs were derived from measured bulk or wet-only deposition and stream export was obtained by combining drainage water fluxes with SO</span><sub>4</sub><span>&nbsp;</span><sup>2−</sup><span>&nbsp;concentrations. Dry deposition has the greatest uncertainty of any of the mass flux calculations necessary to develop accurate watershed balances, and here we developed a new method to calculate this quantity. We utilized historical information from both the US National Emissions Inventory and the US (CASTNET) and the Canadian (CAPMoN) dry deposition networks to develop a formulation that predicted SO</span><sub>2</sub><span>&nbsp;concentrations as a function of SO</span><sub>2</sub><span>&nbsp;emissions, latitude and longitude. The SO</span><sub>2</sub><span>&nbsp;concentrations were used to predict dry deposition using relationships between concentrations and deposition flux derived from the CASTNET or CAPMoN networks. For the year 2002, we compared the SO</span><sub>2</sub><span>&nbsp;concentrations and deposition predictions with the predictions of two continental-scale air quality models, the Community Multiscale Air Quality (CMAQ) model and A Unified Regional Air-quality Modeling System (AURAMS) that utilize complete inventories of emissions and chemical budgets. The results of this comparison indicated that the predictive relationship provides an accurate representation of SO</span><sub>2</sub><span>&nbsp;concentrations and S deposition for the region that is generally consistent with these models, and thus provides confidence that our approach could be used to develop accurate watershed S budgets for these 15 sites. Most watersheds showed large net losses of SO</span><sub>4</sub><span>&nbsp;</span><sup>2−</sup><span>&nbsp;on an annual basis, and the watershed mass balances were grouped into five categories based on the relative value of mean annual net losses or net gains. The net annual fluxes of SO</span><sub>4</sub><span>&nbsp;</span><sup>2−</sup><span>&nbsp;showed a strong relationship with hydrology; the largest net annual negative fluxes were associated with years of greatest precipitation amount and highest discharge. The important role of catchment hydrology on S budgets suggests implications for future predicted climate change as it affects patterns of precipitation and drought. The sensitivity of S budgets is likely to be greatest in watersheds with the greatest wetland area, which are particularly sensitive to drying and wetting cycles. A small number of the watersheds in this analysis were shown to have substantial S sources from mineral weathering, but most showed evidence of an internal source of SO</span><sub>4</sub><span>&nbsp;</span><sup>2−</sup><span>, which is likely from the mineralization of organic S stored from decades of increased S deposition. Mobilization of this internal S appears to contribute about 1–6&nbsp;kg&nbsp;S&nbsp;ha</span><sup>−1</sup><span>&nbsp;year</span><sup>−1</sup><span>&nbsp;to stream fluxes at these sites and is affecting the rate and extent of recovery from acidification as S deposition rates have declined in recent years. This internal S source should be considered when developing critical deposition loads that will promote ecosystem recovery from acidification and the depletion of nutrient cations in the northeastern US and southeastern Canada.</span></p>","language":"English","publisher":"Springer","publisherLocation":"Netherlands","doi":"10.1007/s10533-010-9455-0","usgsCitation":"Mitchell, M.J., Lovett, G., Bailey, S., Beall, F., Burns, D., Buso, D., Clair, T.A., Courchesne, F., Duchesne, L., Eimers, C., Fernandez, I., Houle, D., Jeffries, D.S., Likens, G.E., Moran, M.D., Rogers, C., Schwede, D., Shanley, J., Weathers, K.C., and Vet, R., 2011, Comparisons of watershed sulfur budgets in southeast Canada and northeast US: New approaches and implications: Biogeochemistry, v. 103, no. 1-3, p. 181-207, https://doi.org/10.1007/s10533-010-9455-0.","productDescription":"27 p.","startPage":"181","endPage":"207","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":474,"text":"New York Water Science Center","active":true,"usgs":true}],"links":[{"id":204009,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Canada, United States","state":"Connecticut, Maine, New Hampshire, New Jersey, New York, Nova Scotia, Ontario, Pennsylvania, Quebec, Vermont","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -80.419921875,\n              41.83682786072714\n            ],\n            [\n              -80.419921875,\n              40.17887331434696\n            ],\n            [\n              -74.5751953125,\n              39.977120098439634\n            ],\n            [\n              -73.4326171875,\n              41.31082388091818\n            ],\n            [\n              -72.0703125,\n              41.50857729743935\n            ],\n            [\n              -72.0703125,\n              41.86956082699455\n            ],\n            [\n              -73.47656249999999,\n              42.00032514831621\n            ],\n            [\n              -73.3447265625,\n              42.68243539838623\n            ],\n            [\n              -71.5869140625,\n              42.71473218539458\n            ],\n            [\n              -70.048828125,\n              43.51668853502906\n            ],\n            [\n              -67.763671875,\n              44.59046718130883\n            ],\n            [\n              -65.1708984375,\n              43.83452678223682\n            ],\n            [\n              -63.28125,\n              44.902577996288876\n            ],\n            [\n              -67.5439453125,\n              45.182036837015886\n            ],\n            [\n              -68.0712890625,\n              47.040182144806664\n            ],\n            [\n              -69.2578125,\n              47.368594345213374\n            ],\n            [\n              -70.5322265625,\n              52.02545860348814\n            ],\n            [\n              -82.2216796875,\n              51.590722643120145\n            ],\n            [\n              -87.1875,\n              51.56341232867588\n            ],\n            [\n              -81.5625,\n              45.89000815866184\n            ],\n            [\n              -80.85937499999999,\n              44.402391829093915\n            ],\n            [\n              -82.08984375,\n              42.8115217450979\n            ],\n            [\n              -80.37597656249999,\n              42.58544425738491\n            ],\n            [\n              -79.1455078125,\n              42.84375132629021\n            ],\n            [\n              -80.419921875,\n              41.83682786072714\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"103","issue":"1-3","noUsgsAuthors":false,"publicationDate":"2010-05-19","publicationStatus":"PW","scienceBaseUri":"4f4e4b20e4b07f02db6ab8ec","contributors":{"authors":[{"text":"Mitchell, Myron J.","contributorId":73734,"corporation":false,"usgs":true,"family":"Mitchell","given":"Myron","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":348698,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lovett, Gary","contributorId":37054,"corporation":false,"usgs":true,"family":"Lovett","given":"Gary","affiliations":[],"preferred":false,"id":348686,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bailey, Scott","contributorId":43905,"corporation":false,"usgs":true,"family":"Bailey","given":"Scott","affiliations":[],"preferred":false,"id":348687,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Beall, Fred","contributorId":45444,"corporation":false,"usgs":true,"family":"Beall","given":"Fred","email":"","affiliations":[],"preferred":false,"id":348688,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Burns, Doug","contributorId":46677,"corporation":false,"usgs":true,"family":"Burns","given":"Doug","email":"","affiliations":[],"preferred":false,"id":348689,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Buso, Don","contributorId":27989,"corporation":false,"usgs":true,"family":"Buso","given":"Don","email":"","affiliations":[],"preferred":false,"id":348683,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Clair, Thomas A.","contributorId":83254,"corporation":false,"usgs":true,"family":"Clair","given":"Thomas","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":348699,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Courchesne, Francois","contributorId":107414,"corporation":false,"usgs":true,"family":"Courchesne","given":"Francois","email":"","affiliations":[],"preferred":false,"id":348700,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Duchesne, Louis","contributorId":20460,"corporation":false,"usgs":true,"family":"Duchesne","given":"Louis","email":"","affiliations":[],"preferred":false,"id":348681,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Eimers, Cathy","contributorId":72921,"corporation":false,"usgs":true,"family":"Eimers","given":"Cathy","email":"","affiliations":[],"preferred":false,"id":348696,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Fernandez, Ivan","contributorId":26423,"corporation":false,"usgs":true,"family":"Fernandez","given":"Ivan","affiliations":[],"preferred":false,"id":348682,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Houle, Daniel","contributorId":53935,"corporation":false,"usgs":true,"family":"Houle","given":"Daniel","email":"","affiliations":[],"preferred":false,"id":348691,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Jeffries, Dean S.","contributorId":50281,"corporation":false,"usgs":true,"family":"Jeffries","given":"Dean","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":348690,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Likens, Gene E.","contributorId":56363,"corporation":false,"usgs":true,"family":"Likens","given":"Gene","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":348693,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"Moran, Michael D.","contributorId":55141,"corporation":false,"usgs":true,"family":"Moran","given":"Michael","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":348692,"contributorType":{"id":1,"text":"Authors"},"rank":15},{"text":"Rogers, Christopher","contributorId":59549,"corporation":false,"usgs":true,"family":"Rogers","given":"Christopher","email":"","affiliations":[],"preferred":false,"id":348695,"contributorType":{"id":1,"text":"Authors"},"rank":16},{"text":"Schwede, Donna","contributorId":35059,"corporation":false,"usgs":true,"family":"Schwede","given":"Donna","email":"","affiliations":[],"preferred":false,"id":348685,"contributorType":{"id":1,"text":"Authors"},"rank":17},{"text":"Shanley, Jamie","contributorId":72922,"corporation":false,"usgs":true,"family":"Shanley","given":"Jamie","email":"","affiliations":[],"preferred":false,"id":348697,"contributorType":{"id":1,"text":"Authors"},"rank":18},{"text":"Weathers, Kathleen C.","contributorId":58731,"corporation":false,"usgs":true,"family":"Weathers","given":"Kathleen","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":348694,"contributorType":{"id":1,"text":"Authors"},"rank":19},{"text":"Vet, Robert","contributorId":34643,"corporation":false,"usgs":true,"family":"Vet","given":"Robert","email":"","affiliations":[],"preferred":false,"id":348684,"contributorType":{"id":1,"text":"Authors"},"rank":20}]}}
,{"id":70035675,"text":"70035675 - 2011 - Sensitivity of Pliocene ice sheets to orbital forcing","interactions":[],"lastModifiedDate":"2013-03-13T19:17:23","indexId":"70035675","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2996,"text":"Palaeogeography, Palaeoclimatology, Palaeoecology","printIssn":"0031-0182","active":true,"publicationSubtype":{"id":10}},"title":"Sensitivity of Pliocene ice sheets to orbital forcing","docAbstract":"The stability of the Earth's major ice sheets is a critical uncertainty in predictions of future climate and sea level change. One method of investigating the behaviour of the Greenland and the Antarctic ice sheets in a warmer-than-modern climate is to look back at past warm periods of Earth history, for example the Pliocene. This paper presents climate and ice sheet modelling results for the mid-Pliocene warm period (mPWP; 3.3 to 3.0 million years ago), which has been identified as a key interval for understanding warmer-than-modern climates (Jansen et al., 2007). Using boundary conditions supplied by the United States Geological Survey PRISM Group (Pliocene Research, Interpretation and Synoptic Mapping), the Hadley Centre coupled ocean–atmosphere climate model (HadCM3) and the British Antarctic Survey Ice Sheet Model (BASISM), we show large reductions in the Greenland and East Antarctic Ice Sheets (GrIS and EAIS) compared to modern in standard mPWP experiments. We also present the first results illustrating the variability of the ice sheets due to realistic orbital forcing during the mid-Pliocene. While GrIS volumes are lower than modern under even the most extreme (cold) mid-Pliocene orbit (losing at least 35% of its ice mass), the EAIS can both grow and shrink, losing up to 20% or gaining up to 10% of its present-day volume. The changes in ice sheet volume incurred by altering orbital forcing alone means that global sea level can vary by more than 25 m during the mid-Pliocene. However, we have also shown that the response of the ice sheets to mPWP orbital hemispheric forcing can be in anti-phase, whereby the greatest reductions in EAIS volume are concurrent with the smallest reductions of the GrIS. If this anti-phase relationship is in operation throughout the mPWP, then the total eustatic sea level response would be dampened compared to the ice sheet fluctuations that are theoretically possible. This suggests that maximum eustatic sea level rise does not correspond to orbital maxima, but occurs at times where the anti-phasing of Northern and Southern Hemisphere ice sheet retreat is minimised.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Palaeogeography, Palaeoclimatology, Palaeoecology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","publisherLocation":"Amsterdam, Netherlands","doi":"10.1016/j.palaeo.2011.03.030","issn":"00310182","usgsCitation":"Dolan, A., Haywood, A., Hill, D., Dowsett, H., Hunter, S., Lunt, D., and Pickering, S., 2011, Sensitivity of Pliocene ice sheets to orbital forcing: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 309, no. 1-2, p. 98-110, https://doi.org/10.1016/j.palaeo.2011.03.030.","productDescription":"13 p.","startPage":"98","endPage":"110","costCenters":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"links":[{"id":216343,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.palaeo.2011.03.030"},{"id":244207,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"309","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b8d28e4b08c986b3182a3","contributors":{"authors":[{"text":"Dolan, A.M.","contributorId":40818,"corporation":false,"usgs":true,"family":"Dolan","given":"A.M.","email":"","affiliations":[],"preferred":false,"id":451811,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Haywood, A.M.","contributorId":101050,"corporation":false,"usgs":true,"family":"Haywood","given":"A.M.","email":"","affiliations":[],"preferred":false,"id":451813,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hill, D.J.","contributorId":102291,"corporation":false,"usgs":true,"family":"Hill","given":"D.J.","email":"","affiliations":[],"preferred":false,"id":451814,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Dowsett, H.J. 0000-0003-1983-7524","orcid":"https://orcid.org/0000-0003-1983-7524","contributorId":87924,"corporation":false,"usgs":true,"family":"Dowsett","given":"H.J.","affiliations":[],"preferred":false,"id":451812,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Hunter, S.J.","contributorId":27704,"corporation":false,"usgs":true,"family":"Hunter","given":"S.J.","email":"","affiliations":[],"preferred":false,"id":451810,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Lunt, D.J.","contributorId":105127,"corporation":false,"usgs":true,"family":"Lunt","given":"D.J.","email":"","affiliations":[],"preferred":false,"id":451815,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Pickering, S.J.","contributorId":6283,"corporation":false,"usgs":true,"family":"Pickering","given":"S.J.","email":"","affiliations":[],"preferred":false,"id":451809,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70035700,"text":"70035700 - 2011 - Watershed morphology of highland and mountain ecoregions in eastern Oklahoma","interactions":[],"lastModifiedDate":"2021-05-20T21:33:57.659927","indexId":"70035700","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3191,"text":"Professional Geographer","active":true,"publicationSubtype":{"id":10}},"title":"Watershed morphology of highland and mountain ecoregions in eastern Oklahoma","docAbstract":"<p><span>The fluvial system represents a nested hierarchy that reflects the relationship among different spatial and temporal scales. Within the hierarchy, larger scale variables influence the characteristics of the next lower nested scale. Ecoregions represent one of the largest scales in the fluvial hierarchy and are defined by recurring patterns of geology, climate, land use, soils, and potential natural vegetation. Watersheds, the next largest scale, are often nested into a single ecoregion and therefore have properties that are indicative of a given ecoregion. Differences in watershed morphology (relief, drainage density, circularity ratio, relief ratio, and ruggedness number) were evaluated among three ecoregions in eastern Oklahoma: Ozark Highlands, Boston Mountains, and Ouachita Mountains. These ecoregions were selected because of their high-quality stream resources and diverse aquatic communities and are of special management interest to the Oklahoma Department of Wildlife Conservation. One hundred thirty-four watersheds in first- through fourth-order streams were compared. Using a nonparametric, two-factor analysis of variance (α= 0.05) we concluded that the relief, drainage density, relief ratio, and ruggedness number all changed among ecoregion and stream order, whereas circularity ratio only changed with stream order. Our study shows that ecoregions can be used as a broad-scale framework for watershed management.</span></p>","language":"English","publisher":"Taylor & Francis","doi":"10.1080/00330124.2010.533575","usgsCitation":"Splinter, D.K., Dauwalter, D., Marston, R.A., and Fisher, W., 2011, Watershed morphology of highland and mountain ecoregions in eastern Oklahoma: Professional Geographer, v. 63, no. 1, p. 131-143, https://doi.org/10.1080/00330124.2010.533575.","productDescription":"13 p.","startPage":"131","endPage":"143","costCenters":[{"id":199,"text":"Coop Res Unit Leetown","active":true,"usgs":true}],"links":[{"id":244077,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Oklahoma","otherGeospatial":"Eastern Oklahoma","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -94.6142578125,\n              36.721273880045004\n            ],\n            [\n              -94.76806640624999,\n              36.96744946416934\n            ],\n            [\n              -95.29541015625,\n              36.80928470205937\n            ],\n            [\n              -95.5810546875,\n              36.38591277287651\n            ],\n            [\n              -94.89990234375,\n              36.10237644873644\n            ],\n            [\n              -94.74609375,\n              34.92197103616377\n            ],\n            [\n              -95.3173828125,\n              34.831841149828655\n            ],\n            [\n              -96.1083984375,\n              34.687427949314845\n            ],\n            [\n              -96.064453125,\n              34.361576287484176\n            ],\n            [\n              -95.712890625,\n              34.23451236236987\n            ],\n            [\n              -94.52636718749999,\n              34.125447565116126\n            ],\n            [\n              -94.54833984375,\n              35.7286770448517\n            ],\n            [\n              -94.6142578125,\n              36.721273880045004\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"63","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bcf78e4b08c986b32e8f8","contributors":{"authors":[{"text":"Splinter, D. K.","contributorId":9083,"corporation":false,"usgs":false,"family":"Splinter","given":"D.","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":451970,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dauwalter, Daniel C.","contributorId":224829,"corporation":false,"usgs":false,"family":"Dauwalter","given":"Daniel C.","affiliations":[{"id":37131,"text":"Trout Unlimited","active":true,"usgs":false}],"preferred":false,"id":451973,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Marston, R. A.","contributorId":52422,"corporation":false,"usgs":false,"family":"Marston","given":"R.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":451971,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Fisher, William wfisher@usgs.gov","contributorId":206607,"corporation":false,"usgs":true,"family":"Fisher","given":"William","email":"wfisher@usgs.gov","affiliations":[{"id":199,"text":"Coop Res Unit Leetown","active":true,"usgs":true}],"preferred":true,"id":451972,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70035705,"text":"70035705 - 2011 - Critical nitrogen deposition loads in high-elevation lakes of the western US inferred from paleolimnological records","interactions":[],"lastModifiedDate":"2021-02-16T21:05:54.464629","indexId":"70035705","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3728,"text":"Water, Air, & Soil Pollution","onlineIssn":"1573-2932","printIssn":"0049-6979","active":true,"publicationSubtype":{"id":10}},"title":"Critical nitrogen deposition loads in high-elevation lakes of the western US inferred from paleolimnological records","docAbstract":"<p><span>Critical loads of nitrogen (N) from atmospheric deposition were determined for alpine lake ecosystems in the western US using fossil diatom assemblages in lake sediment cores. Changes in diatom species over the last century were indicative of N enrichment in two areas, the eastern Sierra Nevada, starting between 1960 and 1965, and the Greater Yellowstone Ecosystem, starting in 1980. In contrast, no changes in diatom community structure were apparent in lakes of Glacier National Park. To determine critical N loads that elicited these community changes, we modeled wet nitrogen deposition rates for the period in which diatom shifts first occurred in each area using deposition data spanning from 1980 to 2007. We determined a critical load of 1.4&nbsp;kg N ha</span><sup>−1</sup><span>&nbsp;year</span><sup>−1</sup><span>&nbsp;wet N deposition to elicit key nutrient enrichment effects on diatom communities in both the eastern Sierra Nevada and the Greater Yellowstone Ecosystem.</span></p>","language":"English","publisher":"Springer Link","doi":"10.1007/s11270-010-0526-6","issn":"00496979","usgsCitation":"Saros, J., Clow, D.W., Blett, T., and Wolfe, A., 2011, Critical nitrogen deposition loads in high-elevation lakes of the western US inferred from paleolimnological records: Water, Air, & Soil Pollution, v. 216, no. 1-4, p. 193-202, https://doi.org/10.1007/s11270-010-0526-6.","productDescription":"10 p.","startPage":"193","endPage":"202","costCenters":[],"links":[{"id":475312,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.600.6954","text":"External Repository"},{"id":244175,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":216312,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s11270-010-0526-6"}],"country":"United States","state":"California, Idaho, Montana, Wyoming","otherGeospatial":"Lakes of the Western US","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -119.94873046875,\n              38.95940879245423\n            ],\n            [\n              -119.4873046875,\n              37.92686760148135\n            ],\n            [\n              -118.47656249999999,\n              37.142803443716836\n            ],\n            [\n              -118.125,\n              37.61423141542417\n            ],\n            [\n              -119.94873046875,\n              38.95940879245423\n            ]\n          ]\n        ]\n      }\n    },\n    {\n      \"type\": \"Feature\",\n      \"properties\": {\n        \"stroke\": \"#555555\",\n        \"stroke-width\": 2,\n        \"stroke-opacity\": 1,\n        \"fill\": \"#555555\",\n        \"fill-opacity\": 0.5\n      },\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -112.8076171875,\n              44.902577996288876\n            ],\n            [\n              -112.0166015625,\n              44.071800467511565\n            ],\n            [\n              -111.8408203125,\n              42.4234565179383\n            ],\n            [\n              -109.40185546874999,\n              42.97250158602597\n            ],\n            [\n              -108.43505859374999,\n              44.96479793033101\n            ],\n            [\n              -109.97314453125,\n              46.31658418182218\n            ],\n            [\n              -112.06054687499999,\n              47.14489748555398\n            ],\n            [\n              -113.6865234375,\n              45.98169518512228\n            ],\n            [\n              -112.8076171875,\n              44.902577996288876\n            ]\n          ]\n        ]\n      }\n    },\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -112.3681640625,\n              48.96579381461063\n            ],\n            [\n              -115.00488281250001,\n              48.980216985374994\n            ],\n            [\n              -114.54345703125,\n              47.79839667295524\n            ],\n            [\n              -113.6865234375,\n              47.29413372501023\n            ],\n            [\n              -111.59912109375,\n              48.019324184801185\n            ],\n            [\n              -112.3681640625,\n              48.96579381461063\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"216","issue":"1-4","noUsgsAuthors":false,"publicationDate":"2010-07-02","publicationStatus":"PW","scienceBaseUri":"5059fcb3e4b0c8380cd4e3bd","contributors":{"authors":[{"text":"Saros, J.E.","contributorId":13833,"corporation":false,"usgs":true,"family":"Saros","given":"J.E.","affiliations":[],"preferred":false,"id":451991,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Clow, David W. 0000-0001-6183-4824 dwclow@usgs.gov","orcid":"https://orcid.org/0000-0001-6183-4824","contributorId":1671,"corporation":false,"usgs":true,"family":"Clow","given":"David","email":"dwclow@usgs.gov","middleInitial":"W.","affiliations":[{"id":191,"text":"Colorado Water Science Center","active":true,"usgs":true}],"preferred":true,"id":451992,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Blett, T.","contributorId":67828,"corporation":false,"usgs":true,"family":"Blett","given":"T.","email":"","affiliations":[],"preferred":false,"id":451994,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wolfe, A.P.","contributorId":46445,"corporation":false,"usgs":true,"family":"Wolfe","given":"A.P.","email":"","affiliations":[],"preferred":false,"id":451993,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70035754,"text":"70035754 - 2011 - Spatial and temporal trends of selected trace elements in liver tissue from polar bears (Ursus maritimus) from Alaska, Canada and Greenland","interactions":[],"lastModifiedDate":"2021-02-10T21:08:03.610029","indexId":"70035754","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2259,"text":"Journal of Environmental Monitoring","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Spatial and temporal trends of selected trace elements in liver tissue from polar bears (<i>Ursus maritimus</i>) from Alaska, Canada and Greenland","title":"Spatial and temporal trends of selected trace elements in liver tissue from polar bears (Ursus maritimus) from Alaska, Canada and Greenland","docAbstract":"<p><span>Spatial trends and comparative changes in time of selected trace elements were studied in liver tissue from polar bears from ten different subpopulation locations in Alaska, Canadian Arctic and East Greenland. For nine of the trace elements (As, Cd, Cu, Hg, Mn, Pb, Rb, Se and Zn) spatial trends were investigated in 136 specimens sampled during 2005–2008 from bears from these ten subpopulations. Concentrations of Hg, Se and As were highest in the (northern and southern) Beaufort Sea area and lowest in (western and southern) Hudson Bay area and Chukchi/Bering Sea. In contrast, concentrations of Cd showed an increasing trend from east to west. Minor or no spatial trends were observed for Cu, Mn, Rb and Zn. Spatial trends were in agreement with previous studies, possibly explained by natural phenomena. To assess temporal changes of Cd, Hg, Se and Zn concentrations during the last decades, we compared our results to previously published data. These time comparisons suggested recent Hg increase in East Greenland polar bears. This may be related to Hg emissions and/or climate-induced changes in Hg cycles or changes in the polar bear&nbsp;</span>food<span>&nbsp;web related to global warming. Also, Hg : Se molar ratio has increased in East Greenland polar bears, which suggests there may be an increased risk for Hg</span><small><sup>2+</sup></small><span>-mediated toxicity. Since the underlying reasons for spatial trends or changes in time of trace elements in the Arctic are still largely unknown, future studies should focus on the role of changing climate and trace metal emissions on geographical and temporal trends of trace elements.</span></p>","language":"English","publisher":"Royal Society of Chemistry","doi":"10.1039/c1em10088b","usgsCitation":"Routti, H., Letcher, R., Born, E.W., Branigan, M., Dietz, R., Evans, T., Fisk, A.T., Peacock, E.L., and Sonne, C., 2011, Spatial and temporal trends of selected trace elements in liver tissue from polar bears (Ursus maritimus) from Alaska, Canada and Greenland: Journal of Environmental Monitoring, v. 13, no. 8, p. 2260-2267, https://doi.org/10.1039/c1em10088b.","productDescription":"8 p.","startPage":"2260","endPage":"2267","costCenters":[],"links":[{"id":243950,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States, Canada, Greenland","state":"Alasksa","otherGeospatial":"Alaska, Canada and Greenland","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -169.45312499999997,\n              57.326521225217064\n            ],\n            [\n              -37.265625,\n              57.326521225217064\n            ],\n            [\n              -37.265625,\n              85.34532513469132\n            ],\n            [\n              -169.45312499999997,\n              85.34532513469132\n            ],\n            [\n              -169.45312499999997,\n              57.326521225217064\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"13","issue":"8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b944be4b08c986b31a9ad","contributors":{"authors":[{"text":"Routti, Heli","contributorId":56879,"corporation":false,"usgs":false,"family":"Routti","given":"Heli","email":"","affiliations":[{"id":7238,"text":"Norwegian Polar Institute","active":true,"usgs":false}],"preferred":false,"id":452203,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Letcher, Robert J.","contributorId":25292,"corporation":false,"usgs":true,"family":"Letcher","given":"Robert J.","affiliations":[],"preferred":false,"id":452198,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Born, Erik W.","contributorId":8379,"corporation":false,"usgs":false,"family":"Born","given":"Erik","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":452197,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Branigan, Marsha","contributorId":55236,"corporation":false,"usgs":false,"family":"Branigan","given":"Marsha","email":"","affiliations":[{"id":33080,"text":"Environment and Natural Resources, Government of Northwest Territories, Inuvik, NT, Canada","active":true,"usgs":false}],"preferred":false,"id":452202,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Dietz, Rune","contributorId":41741,"corporation":false,"usgs":true,"family":"Dietz","given":"Rune","affiliations":[],"preferred":false,"id":452199,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Evans, Thomas J.","contributorId":174904,"corporation":false,"usgs":false,"family":"Evans","given":"Thomas J.","affiliations":[{"id":13235,"text":"U.S. Fish and Wildlife Service, Marine Mammals Management","active":true,"usgs":false}],"preferred":false,"id":452205,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Fisk, Aaron T.","contributorId":127340,"corporation":false,"usgs":false,"family":"Fisk","given":"Aaron","email":"","middleInitial":"T.","affiliations":[{"id":6778,"text":"University of Windsor, Windsor, Ontario, Canada","active":true,"usgs":false}],"preferred":false,"id":452200,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Peacock, Elizabeth L. 0000-0001-7279-0329 lpeacock@usgs.gov","orcid":"https://orcid.org/0000-0001-7279-0329","contributorId":3361,"corporation":false,"usgs":true,"family":"Peacock","given":"Elizabeth","email":"lpeacock@usgs.gov","middleInitial":"L.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":false,"id":452201,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Sonne, Christian","contributorId":28527,"corporation":false,"usgs":true,"family":"Sonne","given":"Christian","affiliations":[],"preferred":false,"id":452204,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}}
,{"id":70035783,"text":"70035783 - 2011 - Vegetation death and rapid loss of surface elevation in two contrasting Mississippi delta salt marshes: The role of sedimentation, autocompaction and sea-level rise","interactions":[],"lastModifiedDate":"2021-02-10T19:03:23.794702","indexId":"70035783","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1454,"text":"Ecological Engineering","active":true,"publicationSubtype":{"id":10}},"title":"Vegetation death and rapid loss of surface elevation in two contrasting Mississippi delta salt marshes: The role of sedimentation, autocompaction and sea-level rise","docAbstract":"<p><span>From 1990 to 2004, we carried out a study on accretionary dynamics and&nbsp;wetland&nbsp;loss in&nbsp;salt marshes&nbsp;surrounding two small ponds in the Mississippi delta; Old&nbsp;Oyster&nbsp;Bayou (OB), a sediment-rich area near the mouth of the Atchafalaya River and Bayou Chitigue (BC), a sediment-poor area about 70</span><span>&nbsp;</span><span>km to the east. The OB site was stable, while most of the&nbsp;marsh&nbsp;at BC disappeared within a few years. Measurements were made of short-term sedimentation, vertical accretion, change in marsh surface elevation, pond wave activity, and marsh soil characteristics. The OB marsh was about 10</span><span>&nbsp;</span><span>cm higher than BC; the extremes of the elevation range for&nbsp;</span><span><i>Spartina</i>&nbsp;alterniflora</span><span>&nbsp;in Louisiana. Vertical accretion and short-term sedimentation were about twice as high at BC than at OB, but the OB marsh captured nearly all sediments deposited, while the BC marsh captured &lt;30%. The OB and BC sites flooded about 15% and 85% of the time, respectively. Marsh loss at BC was not due to wave erosion. The mineral content of deposited sediments was higher at OB. Exposure and desiccation of the marsh surface at OB increased the efficiency that deposited sediments were incorporated into the marsh soil, and displaced the marsh surface upward by biological processes like root growth, while also reducing shallow compaction. Once vegetation dies, there is a loss of soil volume due to loss of root&nbsp;turgor&nbsp;and oxidation of root organic matter, which leads to elevation collapse.&nbsp;Revegetation&nbsp;cannot occur because of the low elevation and weak soil strength. The changes in elevation at both marsh sites are punctuated, occurring in steps that can either increase or decrease elevation. When a marsh is low as at BC, a step down can result in an irreversible change. At this point, the option is not restoration but creating a new marsh with massive sediment input either from the river or via dredging.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.ecoleng.2010.11.021","issn":"09258574","usgsCitation":"Day, J., Kemp, G., Reed, D., Cahoon, D.R., Boumans, R., Suhayda, J., and Gambrell, R., 2011, Vegetation death and rapid loss of surface elevation in two contrasting Mississippi delta salt marshes: The role of sedimentation, autocompaction and sea-level rise: Ecological Engineering, v. 37, no. 2, p. 229-240, https://doi.org/10.1016/j.ecoleng.2010.11.021.","productDescription":"12 p.","startPage":"229","endPage":"240","costCenters":[],"links":[{"id":243892,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":216051,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.ecoleng.2010.11.021"}],"country":"United States","state":"Lousianna","otherGeospatial":"Mississippi delta salt marshes","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -92.35107421874999,\n              28.57487404744697\n            ],\n            [\n              -89.05517578125,\n              28.57487404744697\n            ],\n            [\n              -89.05517578125,\n              31.16580958786196\n            ],\n            [\n              -92.35107421874999,\n              31.16580958786196\n            ],\n            [\n              -92.35107421874999,\n              28.57487404744697\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"37","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bc1d3e4b08c986b32a7a3","contributors":{"authors":[{"text":"Day, J.W.","contributorId":27417,"corporation":false,"usgs":true,"family":"Day","given":"J.W.","affiliations":[],"preferred":false,"id":452351,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kemp, G.P.","contributorId":43196,"corporation":false,"usgs":true,"family":"Kemp","given":"G.P.","email":"","affiliations":[],"preferred":false,"id":452353,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Reed, D.J.","contributorId":40949,"corporation":false,"usgs":true,"family":"Reed","given":"D.J.","email":"","affiliations":[],"preferred":false,"id":452352,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Cahoon, Donald R. 0000-0002-2591-5667","orcid":"https://orcid.org/0000-0002-2591-5667","contributorId":65424,"corporation":false,"usgs":true,"family":"Cahoon","given":"Donald","email":"","middleInitial":"R.","affiliations":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true},{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true}],"preferred":false,"id":452356,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Boumans, R.M.","contributorId":45923,"corporation":false,"usgs":true,"family":"Boumans","given":"R.M.","email":"","affiliations":[],"preferred":false,"id":452354,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Suhayda, J.M.","contributorId":53621,"corporation":false,"usgs":true,"family":"Suhayda","given":"J.M.","email":"","affiliations":[],"preferred":false,"id":452355,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Gambrell, R.","contributorId":93301,"corporation":false,"usgs":true,"family":"Gambrell","given":"R.","email":"","affiliations":[],"preferred":false,"id":452357,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
]}