{"pageNumber":"2186","pageRowStart":"54625","pageSize":"25","recordCount":184552,"records":[{"id":70033388,"text":"70033388 - 2008 - Distribution of tsunami interevent times","interactions":[],"lastModifiedDate":"2012-03-12T17:21:20","indexId":"70033388","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","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":"Distribution of tsunami interevent times","docAbstract":"The distribution of tsunami interevent times is analyzed using global and site-specific (Hilo, Hawaii) tsunami catalogs. An empirical probability density distribution is determined by binning the observed interevent times during a period in which the observation rate is approximately constant. The empirical distributions for both catalogs exhibit non-Poissonian behavior in which there is an abundance of short interevent times compared to an exponential distribution. Two types of statistical distributions are used to model this clustering behavior: (1) long-term clustering described by a universal scaling law, and (2) Omori law decay of aftershocks and triggered sources. The empirical and theoretical distributions all imply an increased hazard rate after a tsunami, followed by a gradual decrease with time approaching a constant hazard rate. Examination of tsunami sources suggests that many of the short interevent times are caused by triggered earthquakes, though the triggered events are not necessarily on the same fault.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geophysical Research Letters","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1029/2007GL032690","issn":"00948276","usgsCitation":"Geist, E., and Parsons, T., 2008, Distribution of tsunami interevent times: Geophysical Research Letters, v. 35, no. 2, https://doi.org/10.1029/2007GL032690.","costCenters":[],"links":[{"id":476807,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2007gl032690","text":"Publisher Index Page"},{"id":213569,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2007GL032690"},{"id":241206,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"35","issue":"2","noUsgsAuthors":false,"publicationDate":"2008-01-26","publicationStatus":"PW","scienceBaseUri":"505a030de4b0c8380cd5030d","contributors":{"authors":[{"text":"Geist, E.L. 0000-0003-0611-1150","orcid":"https://orcid.org/0000-0003-0611-1150","contributorId":71993,"corporation":false,"usgs":true,"family":"Geist","given":"E.L.","affiliations":[],"preferred":false,"id":440622,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Parsons, T.","contributorId":48288,"corporation":false,"usgs":true,"family":"Parsons","given":"T.","email":"","affiliations":[],"preferred":false,"id":440621,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70033394,"text":"70033394 - 2008 - Distribution of icy particles across Enceladus' surface as derived from Cassini-VIMS measurements","interactions":[],"lastModifiedDate":"2012-03-12T17:21:37","indexId":"70033394","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1963,"text":"Icarus","active":true,"publicationSubtype":{"id":10}},"title":"Distribution of icy particles across Enceladus' surface as derived from Cassini-VIMS measurements","docAbstract":"The surface of Enceladus consists almost completely of water ice. As the band depths of water ice absorptions are sensitive to the size of particles, absorptions can be used to map variations of icy particles across the surface. The Visual and Infrared Mapping Spectrometer (VIMS) observed Enceladus with a high spatial resolution during three Cassini flybys in 2005 (orbits EN 003, EN 004 and EN 011). Based on these data we measured the band depths of water ice absorptions at 1.04, 1.25, 1.5, and 2 ??m. These band depths were compared to water ice models that represent theoretically calculated reflectance spectra for a range of particle diameters between 2 ??m and 1 mm. The agreement between the experimental (VIMS) and model values supports the assumption that pure water ice characterizes the surface of Enceladus and therefore that variations in band depth correspond to variations in water ice particle diameters. Our measurements show that the particle diameter of water ice increases toward younger tectonically altered surface units with the largest particles exposed in relatively \"fresh\" surface material. The smallest particles were generally found in old densely cratered terrains. The largest particles (???0.2 mm) are concentrated in the so called \"tiger stripes\" at the south pole. In general, the particle diameters are strongly correlated with geologic features and surface ages, indicating a stratigraphic evolution of the surface that is caused by cryovolcanic resurfacing and impact gardening. ?? 2007 Elsevier Inc. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Icarus","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.icarus.2007.09.013","issn":"00191035","usgsCitation":"Jaumann, R., Stephan, K., Hansen, G.B., Clark, R.N., Buratti, B.J., Brown, R.H., Baines, K.H., Newman, S., Bellucci, G., Filacchione, G., Coradini, A., Cruikshank, D.P., Griffith, C., Hibbitts, C.A., McCord, T.B., Nelson, R., Nicholson, P.D., Sotin, C., and Wagner, R., 2008, Distribution of icy particles across Enceladus' surface as derived from Cassini-VIMS measurements: Icarus, v. 193, no. 2, p. 407-419, https://doi.org/10.1016/j.icarus.2007.09.013.","startPage":"407","endPage":"419","numberOfPages":"13","costCenters":[],"links":[{"id":487781,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://hal.science/hal-00499083","text":"External Repository"},{"id":213165,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.icarus.2007.09.013"},{"id":240763,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"193","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a02dae4b0c8380cd5021a","contributors":{"authors":[{"text":"Jaumann, R.","contributorId":81232,"corporation":false,"usgs":false,"family":"Jaumann","given":"R.","email":"","affiliations":[],"preferred":false,"id":440688,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stephan, K.","contributorId":8976,"corporation":false,"usgs":true,"family":"Stephan","given":"K.","email":"","affiliations":[],"preferred":false,"id":440673,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hansen, G. B.","contributorId":98478,"corporation":false,"usgs":false,"family":"Hansen","given":"G.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":440690,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Clark, R. N.","contributorId":6568,"corporation":false,"usgs":true,"family":"Clark","given":"R.","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":440672,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Buratti, B. J.","contributorId":69280,"corporation":false,"usgs":false,"family":"Buratti","given":"B.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":440686,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Brown, R. H.","contributorId":19931,"corporation":false,"usgs":false,"family":"Brown","given":"R.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":440675,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Baines, K. H.","contributorId":37868,"corporation":false,"usgs":false,"family":"Baines","given":"K.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":440679,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Newman, S.F.","contributorId":35551,"corporation":false,"usgs":true,"family":"Newman","given":"S.F.","email":"","affiliations":[],"preferred":false,"id":440678,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Bellucci, G.","contributorId":46256,"corporation":false,"usgs":true,"family":"Bellucci","given":"G.","email":"","affiliations":[],"preferred":false,"id":440681,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Filacchione, G.","contributorId":48740,"corporation":false,"usgs":true,"family":"Filacchione","given":"G.","affiliations":[],"preferred":false,"id":440682,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Coradini, A.","contributorId":34679,"corporation":false,"usgs":true,"family":"Coradini","given":"A.","affiliations":[],"preferred":false,"id":440677,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Cruikshank, D. P.","contributorId":51434,"corporation":false,"usgs":false,"family":"Cruikshank","given":"D.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":440683,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Griffith, C.A.","contributorId":10141,"corporation":false,"usgs":true,"family":"Griffith","given":"C.A.","email":"","affiliations":[],"preferred":false,"id":440674,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Hibbitts, C. A.","contributorId":21703,"corporation":false,"usgs":false,"family":"Hibbitts","given":"C.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":440676,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"McCord, T. B.","contributorId":69695,"corporation":false,"usgs":false,"family":"McCord","given":"T.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":440687,"contributorType":{"id":1,"text":"Authors"},"rank":15},{"text":"Nelson, R.M.","contributorId":38316,"corporation":false,"usgs":true,"family":"Nelson","given":"R.M.","email":"","affiliations":[],"preferred":false,"id":440680,"contributorType":{"id":1,"text":"Authors"},"rank":16},{"text":"Nicholson, P. D.","contributorId":54330,"corporation":false,"usgs":false,"family":"Nicholson","given":"P.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":440685,"contributorType":{"id":1,"text":"Authors"},"rank":17},{"text":"Sotin, Christophe","contributorId":53924,"corporation":false,"usgs":false,"family":"Sotin","given":"Christophe","email":"","affiliations":[],"preferred":false,"id":440684,"contributorType":{"id":1,"text":"Authors"},"rank":18},{"text":"Wagner, R.","contributorId":88859,"corporation":false,"usgs":true,"family":"Wagner","given":"R.","affiliations":[],"preferred":false,"id":440689,"contributorType":{"id":1,"text":"Authors"},"rank":19}]}}
,{"id":70033413,"text":"70033413 - 2008 - A study of methods to estimate debris flow velocity","interactions":[],"lastModifiedDate":"2012-03-12T17:21:36","indexId":"70033413","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2604,"text":"Landslides","active":true,"publicationSubtype":{"id":10}},"title":"A study of methods to estimate debris flow velocity","docAbstract":"Debris flow velocities are commonly back-calculated from superelevation events which require subjective estimates of radii of curvature of bends in the debris flow channel or predicted using flow equations that require the selection of appropriate rheological models and material property inputs. This research investigated difficulties associated with the use of these conventional velocity estimation methods. Radii of curvature estimates were found to vary with the extent of the channel investigated and with the scale of the media used, and back-calculated velocities varied among different investigated locations along a channel. Distinct populations of Bingham properties were found to exist between those measured by laboratory tests and those back-calculated from field data; thus, laboratory-obtained values would not be representative of field-scale debris flow behavior. To avoid these difficulties with conventional methods, a new preliminary velocity estimation method is presented that statistically relates flow velocity to the channel slope and the flow depth. This method presents ranges of reasonable velocity predictions based on 30 previously measured velocities. ?? 2008 Springer-Verlag.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Landslides","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s10346-008-0137-0","issn":"16125","usgsCitation":"Prochaska, A., Santi, P., Higgins, J., and Cannon, S., 2008, A study of methods to estimate debris flow velocity: Landslides, v. 5, no. 4, p. 431-444, https://doi.org/10.1007/s10346-008-0137-0.","startPage":"431","endPage":"444","numberOfPages":"14","costCenters":[],"links":[{"id":213258,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s10346-008-0137-0"},{"id":240865,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"5","issue":"4","noUsgsAuthors":false,"publicationDate":"2008-09-16","publicationStatus":"PW","scienceBaseUri":"5059e5bfe4b0c8380cd46f57","contributors":{"authors":[{"text":"Prochaska, A.B.","contributorId":80493,"corporation":false,"usgs":true,"family":"Prochaska","given":"A.B.","email":"","affiliations":[],"preferred":false,"id":440773,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Santi, P.M.","contributorId":82927,"corporation":false,"usgs":true,"family":"Santi","given":"P.M.","email":"","affiliations":[],"preferred":false,"id":440774,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Higgins, J.D.","contributorId":37154,"corporation":false,"usgs":true,"family":"Higgins","given":"J.D.","email":"","affiliations":[],"preferred":false,"id":440771,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Cannon, S.H.","contributorId":38154,"corporation":false,"usgs":true,"family":"Cannon","given":"S.H.","email":"","affiliations":[],"preferred":false,"id":440772,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70033398,"text":"70033398 - 2008 - Atmospheric contribution of gas emissions from Augustine volcano, Alaska during the 2006 eruption","interactions":[],"lastModifiedDate":"2019-03-25T10:13:45","indexId":"70033398","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","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":"Atmospheric contribution of gas emissions from Augustine volcano, Alaska during the 2006 eruption","docAbstract":"<p><span>Airborne surveillance of gas emissions from Augustine for SO</span><sub>2</sub><span>, CO</span><sub>2</sub><span>&nbsp;and H</span><sub>2</sub><span>S showed no evidence of anomalous degassing from 1990 through May 2005. By December 20, 2005, Augustine was degassing 660 td</span><sup>−1</sup><span>&nbsp;of SO</span><sub>2</sub><span>, and ten times that by January 4, 2006. The highest SO</span><sub>2</sub><span>&nbsp;emission rate measured during the 2006 eruption was 8650 td</span><sup>−1</sup><span>&nbsp;(March 1); for CO</span><sub>2</sub><span>, 13000 td</span><sup>−1</sup><span>&nbsp;(March 9), and H</span><sub>2</sub><span>S, 8 td</span><sup>−1</sup><span>&nbsp;(January 19). Thirty‐four SO</span><sub>2</sub><span>measurements were made from December 2005 through 2006, with 9 each for CO</span><sub>2</sub><span>&nbsp;and H</span><sub>2</sub><span>S. Augustine released 1 × 10</span><sup>6</sup><span>&nbsp;tonnes of CO</span><sub>2</sub><span>&nbsp;to the atmosphere during 2006, a level similar to the output of a medium‐sized natural gas‐fired power plant, and thus was not a significant contributor of greenhouse gas to the atmosphere compared to anthropogenic sources. Augustine released about 5 × 10</span><sup>5</sup><span>&nbsp;tonnes of SO</span><sub>2</sub><span>&nbsp;during 2006, similar to that released in 1976 and 1986.</span></p>","language":"English","publisher":"AGU","doi":"10.1029/2007GL032301","issn":"00948276","usgsCitation":"McGee, K., Doukas, M., McGimsey, R.G., Neal, C., and Wessels, R., 2008, Atmospheric contribution of gas emissions from Augustine volcano, Alaska during the 2006 eruption: Geophysical Research Letters, v. 35, no. 3, 5 p., https://doi.org/10.1029/2007GL032301.","productDescription":"5 p.","costCenters":[{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true}],"links":[{"id":476703,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2007gl032301","text":"Publisher Index Page"},{"id":241210,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Augustine volcano","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -153.58131408691406,\n              59.3167251017617\n            ],\n            [\n              -153.3313751220703,\n              59.3167251017617\n            ],\n            [\n              -153.3313751220703,\n              59.41993301322722\n            ],\n            [\n              -153.58131408691406,\n              59.41993301322722\n            ],\n            [\n              -153.58131408691406,\n              59.3167251017617\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"35","issue":"3","noUsgsAuthors":false,"publicationDate":"2008-02-06","publicationStatus":"PW","scienceBaseUri":"5059eebfe4b0c8380cd49f0d","contributors":{"authors":[{"text":"McGee, K.A.","contributorId":6059,"corporation":false,"usgs":true,"family":"McGee","given":"K.A.","email":"","affiliations":[],"preferred":false,"id":440704,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Doukas, M.P.","contributorId":28615,"corporation":false,"usgs":true,"family":"Doukas","given":"M.P.","email":"","affiliations":[],"preferred":false,"id":440705,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"McGimsey, R. G.","contributorId":93921,"corporation":false,"usgs":true,"family":"McGimsey","given":"R.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":440707,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Neal, C.A. 0000-0002-7697-7825","orcid":"https://orcid.org/0000-0002-7697-7825","contributorId":91122,"corporation":false,"usgs":true,"family":"Neal","given":"C.A.","affiliations":[],"preferred":false,"id":440706,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Wessels, R.L.","contributorId":108281,"corporation":false,"usgs":true,"family":"Wessels","given":"R.L.","affiliations":[],"preferred":false,"id":440708,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70030675,"text":"70030675 - 2008 - Phyllosilicate and sulfate-hematite deposits within Miyamoto crater in Southern Sinus Meridiani, Mars","interactions":[],"lastModifiedDate":"2012-03-12T17:21:00","indexId":"70030675","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","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":"Phyllosilicate and sulfate-hematite deposits within Miyamoto crater in Southern Sinus Meridiani, Mars","docAbstract":"Orbital topographic, image, and spectral data show that sulfate- and hematite-bearing plains deposits similar to those explored by the MER rover Opportunity unconformably overlie the northeastern portion of the 160 km in diameter Miyamoto crater. Crater floor materials exhumed to the west of the contact exhibit CRISM and OMEGA NIR spectral signatures consistent with the presence of Fe/Mg-rich smectite phyllosilicates. Based on superposition relationships, the phyllosilicate-bearing deposits formed either in-situ or were deposited on the floor of Miyamoto crater prior to the formation of the sulfate-rich plains unit. These findings support the hypothesis that neutral pH aqueous conditions transitioned to a ground-water driven acid sulfate system in the Sinus Meridiani region. The presence of both phyllosilicate and sulfate- and hematite-bearing deposits within Miyamoto crater make it an attractive site for exploration by future rover missions. Copyright 2008 by the American Geophysical Union.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geophysical Research Letters","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1029/2008GL035363","issn":"00948","usgsCitation":"Wiseman, S., Arvidson, R., Andrews-Hanna, J.C., Clark, R.N., Lanza, N., des Marais, D., Marzo, G., Morris, R., Murchie, S., Newsom, H.E., Noe Dobrea, E., Ollila, A., Poulet, F., Roush, T.L., Seelos, F., and Swayze, G., 2008, Phyllosilicate and sulfate-hematite deposits within Miyamoto crater in Southern Sinus Meridiani, Mars: Geophysical Research Letters, v. 35, no. 19, https://doi.org/10.1029/2008GL035363.","costCenters":[],"links":[{"id":487633,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2008gl035363","text":"Publisher Index Page"},{"id":239390,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":211993,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2008GL035363"}],"volume":"35","issue":"19","noUsgsAuthors":false,"publicationDate":"2008-10-10","publicationStatus":"PW","scienceBaseUri":"505a7a49e4b0c8380cd78e23","contributors":{"authors":[{"text":"Wiseman, S.M.","contributorId":58097,"corporation":false,"usgs":true,"family":"Wiseman","given":"S.M.","email":"","affiliations":[],"preferred":false,"id":428172,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Arvidson, R. E.","contributorId":46666,"corporation":false,"usgs":true,"family":"Arvidson","given":"R. E.","affiliations":[],"preferred":false,"id":428170,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Andrews-Hanna, J. C.","contributorId":37532,"corporation":false,"usgs":true,"family":"Andrews-Hanna","given":"J.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":428167,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Clark, R. N.","contributorId":6568,"corporation":false,"usgs":true,"family":"Clark","given":"R.","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":428161,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Lanza, N.L.","contributorId":33530,"corporation":false,"usgs":true,"family":"Lanza","given":"N.L.","email":"","affiliations":[],"preferred":false,"id":428166,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"des Marais, D.","contributorId":48293,"corporation":false,"usgs":true,"family":"des Marais","given":"D.","affiliations":[],"preferred":false,"id":428171,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Marzo, G.A.","contributorId":40015,"corporation":false,"usgs":true,"family":"Marzo","given":"G.A.","email":"","affiliations":[],"preferred":false,"id":428168,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Morris, R.V.","contributorId":6978,"corporation":false,"usgs":true,"family":"Morris","given":"R.V.","affiliations":[],"preferred":false,"id":428162,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Murchie, S.L.","contributorId":7369,"corporation":false,"usgs":true,"family":"Murchie","given":"S.L.","email":"","affiliations":[],"preferred":false,"id":428163,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Newsom, Horton E.","contributorId":67689,"corporation":false,"usgs":false,"family":"Newsom","given":"Horton","email":"","middleInitial":"E.","affiliations":[{"id":13339,"text":"University of New Mexico, Albuquerque","active":true,"usgs":false}],"preferred":false,"id":428174,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Noe Dobrea, E.Z.","contributorId":97316,"corporation":false,"usgs":true,"family":"Noe Dobrea","given":"E.Z.","email":"","affiliations":[],"preferred":false,"id":428176,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Ollila, A.M.","contributorId":20154,"corporation":false,"usgs":true,"family":"Ollila","given":"A.M.","email":"","affiliations":[],"preferred":false,"id":428164,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Poulet, F.","contributorId":61551,"corporation":false,"usgs":true,"family":"Poulet","given":"F.","email":"","affiliations":[],"preferred":false,"id":428173,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Roush, T. L.","contributorId":77661,"corporation":false,"usgs":false,"family":"Roush","given":"T.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":428175,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"Seelos, F.P.","contributorId":44350,"corporation":false,"usgs":true,"family":"Seelos","given":"F.P.","affiliations":[],"preferred":false,"id":428169,"contributorType":{"id":1,"text":"Authors"},"rank":15},{"text":"Swayze, G.A. 0000-0002-1814-7823","orcid":"https://orcid.org/0000-0002-1814-7823","contributorId":21570,"corporation":false,"usgs":true,"family":"Swayze","given":"G.A.","affiliations":[],"preferred":false,"id":428165,"contributorType":{"id":1,"text":"Authors"},"rank":16}]}}
,{"id":70033409,"text":"70033409 - 2008 - Corticosterone stress response in tree swallows nesting near polychlorinated biphenyl- and dioxin-contaminated rivers","interactions":[],"lastModifiedDate":"2012-03-12T17:21:37","indexId":"70033409","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1571,"text":"Environmental Toxicology and Chemistry","active":true,"publicationSubtype":{"id":10}},"title":"Corticosterone stress response in tree swallows nesting near polychlorinated biphenyl- and dioxin-contaminated rivers","docAbstract":"We assayed baseline and stress-induced corticosterone concentrations from adult female and nestling tree swallows, Tachycineta bicolor, from New England, USA, sites with different levels of contamination with polychlorinated biphenyls (PCBs) and 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD). Corticosterone was compared over 2 years from a highly contaminated PCB site along the Housatonic River (Berkshire County, MA, USA), a midrange contaminated site upstream, and a reference site. Adult females (n = 29), sampled only in 2003, showed an inverted-U association with PCBs, with higher stress-induced corticosterone with midrange contamination than at the high-contamination site. In nestlings, stress-induced corticosterone was highest for the highly contaminated site compared with the other sites in 2003 (n = 53, 29 nests), with no difference among sites in 2004 (n = 93, 27 nests). In 2004, we began testing mechanisms underlying these changes in nestlings at the high- and low-PCB sites. Corticosterone response to dexamethasone injection (used to test negative feedback) was not different between sites, but stress-induced corticosterone was reduced at the contaminated site after adrenocorticotropin hormone injection (used to test adrenal responsiveness), suggesting an inhibited ability to mount a stress response. We also compared nestlings from a stretch of the Woonasquatucket River, Rhode Island, USA, heavily contaminated with TCDD (n = 80, 43 nests) with nestlings from an upstream site that had lower levels of TCDD and the Berkshire County reference site. Although there were no stress-induced differences, baseline corticosterone was lower at the higher TCDD site than at the reference site. Altogether these findings suggest that tree swallows chronically exposed to high PCB and TCDD levels exhibit altered baseline and stress-induced corticosterone responses, but the patterns of alteration might not be predictable. ?? 2008 SETAC.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Toxicology and Chemistry","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1897/07-602.1","issn":"07307","usgsCitation":"Franceschini, M., Custer, C.M., Custer, T., Reed, J., and Romero, L., 2008, Corticosterone stress response in tree swallows nesting near polychlorinated biphenyl- and dioxin-contaminated rivers: Environmental Toxicology and Chemistry, v. 27, no. 11, p. 2326-2331, https://doi.org/10.1897/07-602.1.","startPage":"2326","endPage":"2331","numberOfPages":"6","costCenters":[],"links":[{"id":213170,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1897/07-602.1"},{"id":240768,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"27","issue":"11","noUsgsAuthors":false,"publicationDate":"2008-11-01","publicationStatus":"PW","scienceBaseUri":"5059fc55e4b0c8380cd4e228","contributors":{"authors":[{"text":"Franceschini, M.D.","contributorId":76948,"corporation":false,"usgs":true,"family":"Franceschini","given":"M.D.","email":"","affiliations":[],"preferred":false,"id":440750,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Custer, Christine M. 0000-0003-0500-1582","orcid":"https://orcid.org/0000-0003-0500-1582","contributorId":31330,"corporation":false,"usgs":true,"family":"Custer","given":"Christine","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":440748,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Custer, T. W. 0000-0003-3170-6519","orcid":"https://orcid.org/0000-0003-3170-6519","contributorId":91802,"corporation":false,"usgs":true,"family":"Custer","given":"T. W.","affiliations":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"preferred":true,"id":440751,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Reed, J.M.","contributorId":66441,"corporation":false,"usgs":true,"family":"Reed","given":"J.M.","email":"","affiliations":[],"preferred":false,"id":440749,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Romero, L.M.","contributorId":107932,"corporation":false,"usgs":true,"family":"Romero","given":"L.M.","email":"","affiliations":[],"preferred":false,"id":440752,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70033415,"text":"70033415 - 2008 - Biomorphodynamics: Physical-biological feedbacks that shape landscapes","interactions":[],"lastModifiedDate":"2012-03-12T17:21:36","indexId":"70033415","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3722,"text":"Water Resources Research","onlineIssn":"1944-7973","printIssn":"0043-1397","active":true,"publicationSubtype":{"id":10}},"title":"Biomorphodynamics: Physical-biological feedbacks that shape landscapes","docAbstract":"Plants and animals affect morphological evolution in many environments. The term \"ecogeomorphology\" describes studies that address such effects. In this opinion article we use the term \"biomorphodynamics\" to characterize a subset of ecogeomorphologic studies: those that investigate not only the effects of organisms on physical processes and morphology but also how the biological processes depend on morphology and physical forcing. The two-way coupling precipitates feedbacks, leading to interesting modes of behavior, much like the coupling between flow/sediment transport and morphology leads to rich morphodynamic behaviors. Select examples illustrate how even the basic aspects of some systems cannot be understood without considering biomorphodynamic coupling. Prominent examples include the dynamic interactions between vegetation and flow/sediment transport that can determine river channel patterns and the multifaceted biomorphodynamic feedbacks shaping tidal marshes and channel networks. These examples suggest that the effects of morphology and physical processes on biology tend to operate over the timescale of the evolution of the morphological pattern. Thus, in field studies, which represent a snapshot in the pattern evolution, these effects are often not as obvious as the effects of biology on physical processes. However, numerical modeling indicates that the influences on biology from physical processes can play a key role in shaping landscapes and that even local and temporary vegetation disturbances can steer large-scale, long-term landscape evolution. The prevalence of biomorphodynamic research is burgeoning in recent years, driven by societal need and a confluence of complex systems-inspired modeling approaches in ecology and geomorphology. To make fundamental progress in understanding the dynamics of many landscapes, our community needs to increasingly learn to look for two-way, biomorphodynamic feedbacks and to collect new types of data to support the modeling of such emergent interactions. Copyright 2008 by the American Geophysical Union.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Water Resources Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1029/2007WR006410","issn":"00431","usgsCitation":"Murray, A., Knaapen, M., Tal, M., and Kirwan, M.L., 2008, Biomorphodynamics: Physical-biological feedbacks that shape landscapes: Water Resources Research, v. 44, no. 11, https://doi.org/10.1029/2007WR006410.","costCenters":[],"links":[{"id":487782,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2007wr006410","text":"Publisher Index Page"},{"id":213260,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2007WR006410"},{"id":240867,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"44","issue":"11","noUsgsAuthors":false,"publicationDate":"2008-11-26","publicationStatus":"PW","scienceBaseUri":"5059f192e4b0c8380cd4acef","contributors":{"authors":[{"text":"Murray, A.B.","contributorId":12598,"corporation":false,"usgs":true,"family":"Murray","given":"A.B.","email":"","affiliations":[],"preferred":false,"id":440780,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Knaapen, M.A.F.","contributorId":95692,"corporation":false,"usgs":true,"family":"Knaapen","given":"M.A.F.","email":"","affiliations":[],"preferred":false,"id":440783,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Tal, M.","contributorId":19374,"corporation":false,"usgs":true,"family":"Tal","given":"M.","email":"","affiliations":[],"preferred":false,"id":440781,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kirwan, M. L.","contributorId":74094,"corporation":false,"usgs":true,"family":"Kirwan","given":"M.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":440782,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70030648,"text":"70030648 - 2008 - Littoral zones as sources of biodegradable dissolved organic carbon in lakes","interactions":[],"lastModifiedDate":"2012-03-12T17:21:14","indexId":"70030648","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1169,"text":"Canadian Journal of Fisheries and Aquatic Sciences","active":true,"publicationSubtype":{"id":10}},"title":"Littoral zones as sources of biodegradable dissolved organic carbon in lakes","docAbstract":"A survey of 12 lakes in Minnesota, USA, was conducted to examine the factors controlling variability in biodegradable dissolved organic carbon (BDOC) concentration. The principal question addressed was whether BDOC concentration was more strongly related to lake trophic status or morphometric parameters. BDOC concentration was determined by incubating filtered lake water for a period of 15 months and fitting an exponential decay curve to measured DOC concentrations. BDOC concentrations varied from 73 to 427 mmol C.L-1 and composed 15%-63% of the total DOC pool. There were no significant correlations between BDOC and measures of lake trophic status. Instead, BDOC was most closely associated with the percentage of lake area covered by littoral zone, suggesting a significant source of BDOC from aquatic macrophytes and lake surface sediments. ?? 2008 NRC.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Canadian Journal of Fisheries and Aquatic Sciences","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1139/F08-142","issn":"07066","usgsCitation":"Stets, E., and Cotner, J., 2008, Littoral zones as sources of biodegradable dissolved organic carbon in lakes: Canadian Journal of Fisheries and Aquatic Sciences, v. 65, no. 11, p. 2454-2460, https://doi.org/10.1139/F08-142.","startPage":"2454","endPage":"2460","numberOfPages":"7","costCenters":[],"links":[{"id":212134,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1139/F08-142"},{"id":239569,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"65","issue":"11","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a48b7e4b0c8380cd6809c","contributors":{"authors":[{"text":"Stets, E.G.","contributorId":52791,"corporation":false,"usgs":true,"family":"Stets","given":"E.G.","affiliations":[],"preferred":false,"id":428029,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cotner, J.B.","contributorId":95272,"corporation":false,"usgs":true,"family":"Cotner","given":"J.B.","affiliations":[],"preferred":false,"id":428030,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70030647,"text":"70030647 - 2008 - Environment and paleoecology of a 12 ka mid-North American Younger Dryas forest chronicled in tree rings","interactions":[],"lastModifiedDate":"2015-04-01T13:02:16","indexId":"70030647","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3218,"text":"Quaternary Research","active":true,"publicationSubtype":{"id":10}},"title":"Environment and paleoecology of a 12 ka mid-North American Younger Dryas forest chronicled in tree rings","docAbstract":"<p>Until now, availability of wood from the Younger Dryas abrupt cooling event (YDE) in N. America ca. 12.9 to 11.6 ka has been insufficient to develop high-resolution chronologies for refining our understanding of YDE conditions. Here we present a multi-proxy tree-ring chronology (ring widths, &ldquo;events&rdquo; evidenced by microanatomy and macro features, stable isotopes) from a buried black spruce forest in the Great Lakes area (Liverpool East site), spanning 116&nbsp;yr at ca. 12,000&nbsp;cal yr BP. During this largely cold and wet period, the proxies convey a coherent and precise forest history including frost events, tilting, drowning and burial in estuarine sands as the Laurentide Ice Sheet deteriorated. In the middle of the period, a short mild interval appears to have launched the final and largest episode of tree recruitment. Ultimately the tops of the trees were sheared off after death, perhaps by wind-driven ice floes, culminating an interval of rising water and sediment deposition around the base of the trees. Although relative influences of the continental ice sheet and local effects from ancestral Lake Michigan are indeterminate, the tree-ring proxies provide important insight into environment and ecology of a N. American YDE boreal forest stand.</p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.yqres.2008.08.006","issn":"00335","usgsCitation":"Panyushkina, I.P., Leavitt, S.W., Thompson, T.A., Schneider, A.F., and Lange, T., 2008, Environment and paleoecology of a 12 ka mid-North American Younger Dryas forest chronicled in tree rings: Quaternary Research, v. 70, no. 3, p. 433-441, https://doi.org/10.1016/j.yqres.2008.08.006.","productDescription":"9 p.","startPage":"433","endPage":"441","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":239568,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212133,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.yqres.2008.08.006"}],"volume":"70","issue":"3","noUsgsAuthors":false,"publicationDate":"2017-01-20","publicationStatus":"PW","scienceBaseUri":"505a0989e4b0c8380cd51f6b","contributors":{"authors":[{"text":"Panyushkina, Irina P.","contributorId":61242,"corporation":false,"usgs":true,"family":"Panyushkina","given":"Irina","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":428026,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Leavitt, Steven W.","contributorId":77312,"corporation":false,"usgs":true,"family":"Leavitt","given":"Steven","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":428028,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Thompson, Todd A.","contributorId":38501,"corporation":false,"usgs":true,"family":"Thompson","given":"Todd","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":428027,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Schneider, Allan F.","contributorId":24937,"corporation":false,"usgs":true,"family":"Schneider","given":"Allan","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":428024,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Lange, Todd","contributorId":58845,"corporation":false,"usgs":true,"family":"Lange","given":"Todd","email":"","affiliations":[],"preferred":false,"id":428025,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70030646,"text":"70030646 - 2008 - Gas and gas hydrate distribution around seafloor seeps in Mississippi Canyon, Northern Gulf of Mexico, using multi-resolution seismic imagery","interactions":[],"lastModifiedDate":"2012-03-12T17:21:14","indexId":"70030646","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2682,"text":"Marine and Petroleum Geology","active":true,"publicationSubtype":{"id":10}},"title":"Gas and gas hydrate distribution around seafloor seeps in Mississippi Canyon, Northern Gulf of Mexico, using multi-resolution seismic imagery","docAbstract":"To determine the impact of seeps and focused flow on the occurrence of shallow gas hydrates, several seafloor mounds in the Atwater Valley lease area of the Gulf of Mexico were surveyed with a wide range of seismic frequencies. Seismic data were acquired with a deep-towed, Helmholz resonator source (220-820 Hz); a high-resolution, Generator-Injector air-gun (30-300 Hz); and an industrial air-gun array (10-130 Hz). Each showed a significantly different response in this weakly reflective, highly faulted area. Seismic modeling and observations of reversed-polarity reflections and small scale diffractions are consistent with a model of methane transport dominated regionally by diffusion but punctuated by intense upward advection responsible for the bathymetric mounds, as well as likely advection along pervasive filamentous fractures away from the mounds.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Marine and Petroleum Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.marpetgeo.2008.01.015","issn":"02648","usgsCitation":"Wood, W., Hart, P., Hutchinson, D.R., Dutta, N., Snyder, F., Coffin, R., and Gettrust, J., 2008, Gas and gas hydrate distribution around seafloor seeps in Mississippi Canyon, Northern Gulf of Mexico, using multi-resolution seismic imagery: Marine and Petroleum Geology, v. 25, no. 9, p. 952-959, https://doi.org/10.1016/j.marpetgeo.2008.01.015.","startPage":"952","endPage":"959","numberOfPages":"8","costCenters":[],"links":[{"id":476716,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://hdl.handle.net/1912/2619","text":"External Repository"},{"id":212108,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.marpetgeo.2008.01.015"},{"id":239531,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"25","issue":"9","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a14bfe4b0c8380cd54b48","contributors":{"authors":[{"text":"Wood, W.T.","contributorId":51516,"corporation":false,"usgs":true,"family":"Wood","given":"W.T.","email":"","affiliations":[],"preferred":false,"id":428020,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hart, P. E.","contributorId":10773,"corporation":false,"usgs":true,"family":"Hart","given":"P. E.","affiliations":[],"preferred":false,"id":428018,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hutchinson, D. R.","contributorId":31770,"corporation":false,"usgs":true,"family":"Hutchinson","given":"D.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":428019,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Dutta, N.","contributorId":7086,"corporation":false,"usgs":true,"family":"Dutta","given":"N.","email":"","affiliations":[],"preferred":false,"id":428017,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Snyder, F.","contributorId":84160,"corporation":false,"usgs":true,"family":"Snyder","given":"F.","email":"","affiliations":[],"preferred":false,"id":428023,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Coffin, R.B.","contributorId":59628,"corporation":false,"usgs":true,"family":"Coffin","given":"R.B.","email":"","affiliations":[],"preferred":false,"id":428021,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Gettrust, J.F.","contributorId":80080,"corporation":false,"usgs":true,"family":"Gettrust","given":"J.F.","affiliations":[],"preferred":false,"id":428022,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70030414,"text":"70030414 - 2008 - Demographic analysis of Lost River sucker and shortnose sucker populations in Upper Klamath Lake, Oregon","interactions":[],"lastModifiedDate":"2012-03-12T17:21:03","indexId":"70030414","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3624,"text":"Transactions of the American Fisheries Society","active":true,"publicationSubtype":{"id":10}},"title":"Demographic analysis of Lost River sucker and shortnose sucker populations in Upper Klamath Lake, Oregon","docAbstract":"We used 13 years (1995-2007) of capture-mark-recapture data to assess population dynamics of endangered Lost River suckers Deltistes luxatus and shortnose suckers Chasmistes brevirostris in Upper Klamath Lake, Oregon. The Cormack-Jolly-Seber method was used to estimate survival, and information theoretic modeling was used to assess variation due to time, gender, species, and spawning subpopulations. Length data were used to detect multiple year-class failures and events of high recruitment into adult spawning populations. Average annual survival probability was 0.88 for Lost River suckers and 0.76 for shortnose suckers. Mean life span estimates based on these survival rates indicated that Lost River suckers survived long enough on average to attempt reproduction eight times, whereas shortnose suckers only survived to spawn three to four times. Shortnose sucker survival was not only poor in years of fish kills (1995-1997) but also was low in years without fish kills (i.e., 2002 and 2004). This suggests that high mortality occurs in some years but is not necessarily associated with fish kills. Annual survival probabilities were not only different between the two species but also differed between two spawning subpopulations of Lost River suckers. Length composition data indicated that recruitment into spawning populations only occurred intermittently. Populations of both species transitioned from primarily old individuals with little size diversity and consistently poor recruitment in the late 1980s and early 1990s to mostly small, recruit-sized fish by the late 1990s. A better understanding of the factors influencing adult survival and recruitment into spawning populations is needed. Monitoring these vital parameters will provide a quantitative means to evaluate population status and assess the effectiveness of conservation and recovery efforts.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Transactions of the American Fisheries Society","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1577/T06-235.1","issn":"00028","usgsCitation":"Janney, E., Shively, R., Hayes, B., Barry, P., and Perkins, D., 2008, Demographic analysis of Lost River sucker and shortnose sucker populations in Upper Klamath Lake, Oregon: Transactions of the American Fisheries Society, v. 137, no. 6, p. 1812-1825, https://doi.org/10.1577/T06-235.1.","startPage":"1812","endPage":"1825","numberOfPages":"14","costCenters":[],"links":[{"id":211834,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1577/T06-235.1"},{"id":239204,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"137","issue":"6","noUsgsAuthors":false,"publicationDate":"2011-01-09","publicationStatus":"PW","scienceBaseUri":"5059fe7de4b0c8380cd4ed5a","contributors":{"authors":[{"text":"Janney, E.C.","contributorId":43955,"corporation":false,"usgs":true,"family":"Janney","given":"E.C.","affiliations":[],"preferred":false,"id":427054,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Shively, R.S.","contributorId":79642,"corporation":false,"usgs":true,"family":"Shively","given":"R.S.","email":"","affiliations":[],"preferred":false,"id":427055,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hayes, B.S.","contributorId":34721,"corporation":false,"usgs":true,"family":"Hayes","given":"B.S.","email":"","affiliations":[],"preferred":false,"id":427053,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Barry, P.M.","contributorId":31574,"corporation":false,"usgs":true,"family":"Barry","given":"P.M.","email":"","affiliations":[],"preferred":false,"id":427052,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Perkins, D.","contributorId":83589,"corporation":false,"usgs":true,"family":"Perkins","given":"D.","affiliations":[],"preferred":false,"id":427056,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70030412,"text":"70030412 - 2008 - Length variation in age-0 westslope cutthroat trout at multiple spatial scales","interactions":[],"lastModifiedDate":"2012-03-12T17:21:04","indexId":"70030412","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2886,"text":"North American Journal of Fisheries Management","active":true,"publicationSubtype":{"id":10}},"title":"Length variation in age-0 westslope cutthroat trout at multiple spatial scales","docAbstract":"Phenotypic diversity provides ecological and evolutionary functions, stabilizing populations in variable environments. Although benefits of larger body size in juvenile fishes are well documented, size variation may have value as well. We explored the distribution of length and length variation in age-0 westslope cutthroat trout Oncorhynchus clarkii lewisi at three spatial scales: area (102 km2), stream (101 km2), and site (100 km2). In addition, we examined relationships between length variables (mean length and interquartile range of length) and instream (temperature and conductivity) and landscape (aspect, elevation, headwater distance, and valley width) variables that were expected to be associated with fish size. Conductivity was included as a surrogate for productivity. Most variation in mean length and interquartile range of fish length was found among areas (62.2% and 62.6%, respectively). Mean length also varied among streams and sites (21.9% and 15.8%, respectively). Similarly, interquartile range of fish length varied among streams and sites (19.1% and 18.3%, respectively). Both length variables were associated with temperature and elevation. Mean fish length was also associated with conductivity, but the association between interquartile length range and conductivity was weak. We conclude that the conservation of variation in phenotypic attributes, such as length, in westslope cutthroat trout may require conservation of viable populations across broad areas and across environmental gradients that are associated with growth. ?? Copyright by the American Fisheries Society 2008.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"North American Journal of Fisheries Management","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1577/M07-120.1","issn":"02755","usgsCitation":"Mcgrath, K., Scott, J.M., and Rieman, B., 2008, Length variation in age-0 westslope cutthroat trout at multiple spatial scales: North American Journal of Fisheries Management, v. 28, no. 5, p. 1529-1540, https://doi.org/10.1577/M07-120.1.","startPage":"1529","endPage":"1540","numberOfPages":"12","costCenters":[],"links":[{"id":211806,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1577/M07-120.1"},{"id":239170,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"28","issue":"5","noUsgsAuthors":false,"publicationDate":"2008-10-01","publicationStatus":"PW","scienceBaseUri":"505a4642e4b0c8380cd675eb","contributors":{"authors":[{"text":"Mcgrath, K.E.","contributorId":69781,"corporation":false,"usgs":true,"family":"Mcgrath","given":"K.E.","email":"","affiliations":[],"preferred":false,"id":427049,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Scott, J. M.","contributorId":55766,"corporation":false,"usgs":true,"family":"Scott","given":"J.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":427047,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Rieman, B.E.","contributorId":67283,"corporation":false,"usgs":true,"family":"Rieman","given":"B.E.","email":"","affiliations":[],"preferred":false,"id":427048,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70030411,"text":"70030411 - 2008 - Geology of the Carnegie museum dinosaur quarry site of Diplodocus carnegii, Sheep Creek, Wyoming","interactions":[],"lastModifiedDate":"2012-03-12T17:21:03","indexId":"70030411","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":790,"text":"Annals of Carnegie Museum","active":true,"publicationSubtype":{"id":10}},"title":"Geology of the Carnegie museum dinosaur quarry site of Diplodocus carnegii, Sheep Creek, Wyoming","docAbstract":"The holotype of Diplodocus carnegii Hatcher, 1901, consists of a partial skeleton (CM 84) that was recovered, along with a second partial skeleton of the same species (CM 94), from the upper 10 m of the Talking Rock facies of the Brushy Basin Member of the Morrison Formation exposed along Bone Quarry Draw, a tributary of Sheep Creek in Albany County, Wyoming. A composite measured section of the stratigraphic interval exposed adjacent to the quarry indicates that the Brushy Basin Member in this area is a stacked succession of lithofacies consisting of hackly, greenish gray, calcareous mudstone and greenish brown, dense, fine-grained limestone. The more erosion resistant limestone layers can be traced over many hundreds of meters. Thus, these strata do not appear to represent a highly localized deposit such as a stream channel, oxbow lake, or backwater pond. The Sheep Creek succession is interpreted as representing a clastic-dominated lake where high turbidity and sediment influx produced deposition of calcareous mudstone. During drier periods the lake's turbidity decreased and limestone and dolomite precipitation replaced mud deposition. Microkarsting at the top of some limestone/ dolomite layers suggests subaerial deposition may have prevailed during these dry episodes. The quarry of D. carnegii was excavated within the top strata of one of the numerous intervals of hackly, greenish gray, calcareous mudstone that represent an ephemeral freshwater lake. The quarry strata are directly overlain by 0.3 m of dolomite-capped limestone that was deposited shortly after interment of D. carnegii in the lake mudstones. The close vertical proximity of the overlying limestone to the skeleton's stratigraphic: level suggests that the animal's carcass may have been buried beneath the drying lake deposits during a period of decreased rainfall.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Annals of Carnegie Museum","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"00974","usgsCitation":"Brezinski, D., and Kollar, A., 2008, Geology of the Carnegie museum dinosaur quarry site of Diplodocus carnegii, Sheep Creek, Wyoming: Annals of Carnegie Museum, v. 77, no. 2, p. 243-252.","startPage":"243","endPage":"252","numberOfPages":"10","costCenters":[],"links":[{"id":239169,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"77","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a253be4b0c8380cd58725","contributors":{"authors":[{"text":"Brezinski, D. K.","contributorId":39010,"corporation":false,"usgs":true,"family":"Brezinski","given":"D. K.","affiliations":[],"preferred":false,"id":427045,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kollar, A.D.","contributorId":106311,"corporation":false,"usgs":true,"family":"Kollar","given":"A.D.","email":"","affiliations":[],"preferred":false,"id":427046,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70033349,"text":"70033349 - 2008 - Remote sensing and GIS approach for water-well site selection, southwest Iran","interactions":[],"lastModifiedDate":"2012-03-12T17:21:35","indexId":"70033349","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1574,"text":"Environmental & Engineering Geoscience","printIssn":"1078-7275","active":true,"publicationSubtype":{"id":10}},"title":"Remote sensing and GIS approach for water-well site selection, southwest Iran","docAbstract":"The Pabdeh-Lali Anticline of northern Khuzestan province is located in southwestern Iran and occupies 790 km2. This structure is situated in the Zagros folded belt. As a result of well-developed karst systems in the anticlinal axis, the water supply potential is high and is drained by many peripheral springs. However, there is a scarcity of water for agriculture and population centers on the anticlinal flanks, which imposes a severe problem in terms of area development. This study combines remotely sensed (RS) data and a geographical information system (GIS) into a RSGIS technique to delineate new areas for groundwater development and specific sites for drilling productive water wells. Toward these goals, RS data were used to develop GIS layers for lithology, structural geology, topographic slope, elevation, and drainage density. Field measurements were made to create spring-location and groundwater-quality GIS layers. Subsequently, expert choice and relational methods were used in a GIS environment to conjunctively analyze all layers to delineate preferable regions and 43 individual sites in which to drill water wells. Results indicate that the most preferred areas are, in preferential order, within recent alluvial deposits, the Bakhtiyari Conglomerates, and the Aghajari Sandstone. The Asmari Limestone and other units have much lower potential for groundwater supplies. Potential usefulness of the RSGIS method was indicated when six out of nine producing wells recently drilled by the Khozestan Water and Power Authority (which had no knowledge of this study) were located in areas preferentially selected by this technique.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental and Engineering Geoscience","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.2113/gseegeosci.14.4.315","issn":"10787","usgsCitation":"Rangzan, K., Charchi, A., Abshirini, E., and Dinger, J., 2008, Remote sensing and GIS approach for water-well site selection, southwest Iran: Environmental & Engineering Geoscience, v. 14, no. 4, p. 315-326, https://doi.org/10.2113/gseegeosci.14.4.315.","startPage":"315","endPage":"326","numberOfPages":"12","costCenters":[],"links":[{"id":240997,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":213376,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2113/gseegeosci.14.4.315"}],"volume":"14","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505aa6f1e4b0c8380cd85129","contributors":{"authors":[{"text":"Rangzan, K.","contributorId":39589,"corporation":false,"usgs":true,"family":"Rangzan","given":"K.","email":"","affiliations":[],"preferred":false,"id":440450,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Charchi, A.","contributorId":82928,"corporation":false,"usgs":true,"family":"Charchi","given":"A.","email":"","affiliations":[],"preferred":false,"id":440452,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Abshirini, E.","contributorId":22972,"corporation":false,"usgs":true,"family":"Abshirini","given":"E.","email":"","affiliations":[],"preferred":false,"id":440449,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Dinger, J.","contributorId":69788,"corporation":false,"usgs":true,"family":"Dinger","given":"J.","email":"","affiliations":[],"preferred":false,"id":440451,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70030384,"text":"70030384 - 2008 - Seismic and acoustic recordings of an unusually large rockfall at Mount St. Helens, Washington","interactions":[],"lastModifiedDate":"2019-03-21T17:39:45","indexId":"70030384","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","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":"Seismic and acoustic recordings of an unusually large rockfall at Mount St. Helens, Washington","docAbstract":"<p><span>On 29 May 2006 a large rockfall off the Mount St. Helens lava dome produced an atmospheric plume that was reported by airplane pilots to have risen to 6,000 m above sea level and interpreted to be a result of an explosive event. However, subsequent field reconnaissance found no evidence of a ballistic field, indicating that there was no explosive component. The rockfall produced complex seismic and infrasonic signals, with the latter recorded at sites 0.6 and 13.4 km from the source. An unusual, very long-period (50 s) infrasonic signal was recorded, a signal we model as the result of air displacement. Two high-frequency infrasonic signals are inferred to result from the initial contact of a rock slab with the ground and from interaction of displaced air with a depression at the base of the active lava dome.</span></p>","language":"English","publisher":"AGU","doi":"10.1029/2008GL035176","issn":"00948","usgsCitation":"Moran, S.C., Matoza, R., Garces, M., Hedlin, M., Bowers, D., Scott, W.E., Sherrod, D.R., and Vallance, J.W., 2008, Seismic and acoustic recordings of an unusually large rockfall at Mount St. Helens, Washington: Geophysical Research Letters, v. 35, no. 19, p. 1-6, https://doi.org/10.1029/2008GL035176.","productDescription":"L19302; 6 p.","startPage":"1","endPage":"6","numberOfPages":"6","ipdsId":"IP-007301","costCenters":[{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":486866,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2008gl035176","text":"Publisher Index Page"},{"id":239269,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":211893,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2008GL035176"}],"volume":"35","issue":"19","noUsgsAuthors":false,"publicationDate":"2008-10-02","publicationStatus":"PW","scienceBaseUri":"505b8aede4b08c986b317487","contributors":{"authors":[{"text":"Moran, Seth C. 0000-0001-7308-9649 smoran@usgs.gov","orcid":"https://orcid.org/0000-0001-7308-9649","contributorId":548,"corporation":false,"usgs":true,"family":"Moran","given":"Seth","email":"smoran@usgs.gov","middleInitial":"C.","affiliations":[{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":426946,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Matoza, R.S.","contributorId":31977,"corporation":false,"usgs":true,"family":"Matoza","given":"R.S.","email":"","affiliations":[],"preferred":false,"id":426942,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Garces, M.A.","contributorId":86563,"corporation":false,"usgs":true,"family":"Garces","given":"M.A.","email":"","affiliations":[],"preferred":false,"id":426947,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hedlin, M.A.H.","contributorId":58094,"corporation":false,"usgs":true,"family":"Hedlin","given":"M.A.H.","email":"","affiliations":[],"preferred":false,"id":426945,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Bowers, D.","contributorId":9457,"corporation":false,"usgs":true,"family":"Bowers","given":"D.","email":"","affiliations":[],"preferred":false,"id":426940,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Scott, William E. 0000-0001-8156-979X wescott@usgs.gov","orcid":"https://orcid.org/0000-0001-8156-979X","contributorId":1725,"corporation":false,"usgs":true,"family":"Scott","given":"William","email":"wescott@usgs.gov","middleInitial":"E.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":426941,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Sherrod, David R. 0000-0001-9460-0434 dsherrod@usgs.gov","orcid":"https://orcid.org/0000-0001-9460-0434","contributorId":527,"corporation":false,"usgs":true,"family":"Sherrod","given":"David","email":"dsherrod@usgs.gov","middleInitial":"R.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":426943,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Vallance, James W. 0000-0002-3083-5469 jvallance@usgs.gov","orcid":"https://orcid.org/0000-0002-3083-5469","contributorId":547,"corporation":false,"usgs":true,"family":"Vallance","given":"James","email":"jvallance@usgs.gov","middleInitial":"W.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":426944,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":70030703,"text":"70030703 - 2008 - Long-term water quality and biological responses to multiple best management practices in Rock Creek, Idaho","interactions":[],"lastModifiedDate":"2012-03-12T17:21:01","indexId":"70030703","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","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":"Long-term water quality and biological responses to multiple best management practices in Rock Creek, Idaho","docAbstract":"Water quality and macroinvertebrate assemblage data from 1981 to 2005 were assessed to evaluate the water quality and biological responses of a western trout stream to the implementation of multiple best management practices (BMPs) on irrigated cropland. Data from Rock Creek near Twin Falls, Idaho, a long-term monitoring site, were assembled from state and federal sources to provide the evaluation. Seasonal loads of the nonpoint source pollutants suspended sediment (SS), total phosphorus (TP), and nitrate-nitrite (NN) were estimated using a regression model with time-series streamflow data and constituent concentrations. Trends in the macroinvertebrate assemblages were evaluated using a number of biological metrics and nonmetric multidimensional scaling ordination. Regression analysis found significant annual decreases in TP and SS flow-adjusted concentrations during the BMP implementation period from 1983 to 1990 of about 7 and 10%, respectively. These results are coincident with the implementation of multiple BMPs on about 75% of the irrigated cropland in the watershed. Macroinvertebrate assemblages during this time also responded with a change in taxa composition resulting in improved biotic index scores. Taxon specific TP and SS optima, empirically derived from a large national dataset, predicted a decrease in SS concentrations of about 37% (52 to 33 mg/l) and a decrease in TP concentrations of about 50% (0.20 to 0.10 mg/l) from 1981 to 1987. Decreasing trends in TP, SS, and NN pollutant loads were primarily the result of naturally low streamflow conditions during the BMP post-implementation period from 1993 to 2005. Trends in macroinvertebrate responses during 1993 to 2005 were confounded by the introduction of the New Zealand mudsnail (Potamopyrgus antipodarum), which approached densities of 100,000 per m 2 in riffle habitat. The occurrence of this invasive species appears to have caused a major shift in composition and function of the macroinvertebrate assemblages. ?? 2008 American Water Resources Association.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of the American Water Resources Association","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1752-1688.2008.00221.x","issn":"10934","usgsCitation":"Maret, T., MacCoy, D., and Carlisle, D., 2008, Long-term water quality and biological responses to multiple best management practices in Rock Creek, Idaho: Journal of the American Water Resources Association, v. 44, no. 5, p. 1248-1269, https://doi.org/10.1111/j.1752-1688.2008.00221.x.","startPage":"1248","endPage":"1269","numberOfPages":"22","costCenters":[],"links":[{"id":211881,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1752-1688.2008.00221.x"},{"id":239254,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"44","issue":"5","noUsgsAuthors":false,"publicationDate":"2008-10-08","publicationStatus":"PW","scienceBaseUri":"505a49b1e4b0c8380cd687f6","contributors":{"authors":[{"text":"Maret, T.R.","contributorId":9015,"corporation":false,"usgs":true,"family":"Maret","given":"T.R.","affiliations":[],"preferred":false,"id":428272,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"MacCoy, D.E.","contributorId":47814,"corporation":false,"usgs":true,"family":"MacCoy","given":"D.E.","affiliations":[],"preferred":false,"id":428273,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Carlisle, D.M.","contributorId":81059,"corporation":false,"usgs":true,"family":"Carlisle","given":"D.M.","email":"","affiliations":[],"preferred":false,"id":428274,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70030383,"text":"70030383 - 2008 - Assessing sulfate reduction and methane cycling in a high salinity pore water system in the northern Gulf of Mexico","interactions":[],"lastModifiedDate":"2017-08-16T11:07:00","indexId":"70030383","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2682,"text":"Marine and Petroleum Geology","active":true,"publicationSubtype":{"id":10}},"title":"Assessing sulfate reduction and methane cycling in a high salinity pore water system in the northern Gulf of Mexico","docAbstract":"Pore waters extracted from 18 piston cores obtained on and near a salt-cored bathymetric high in Keathley Canyon lease block 151 in the northern Gulf of Mexico contain elevated concentrations of chloride (up to 838 mM) and have pore water chemical concentration profiles that exhibit extensive departures (concavity) from steady-state (linear) diffusive equilibrium with depth. Minimum ??13C dissolved inorganic carbon (DIC) values of -55.9??? to -64.8??? at the sulfate-methane transition (SMT) strongly suggest active anaerobic oxidation of methane (AOM) throughout the study region. However, the nonlinear pore water chemistry-depth profiles make it impossible to determine the vertical extent of active AOM or the potential role of alternate sulfate reduction pathways. Here we utilize the conservative (non-reactive) nature of dissolved chloride to differentiate the effects of biogeochemical activity (e.g., AOM and/or organoclastic sulfate reduction) relative to physical mixing in high salinity Keathley Canyon sediments. In most cases, the DIC and sulfate concentrations in pore waters are consistent with a conservative mixing model that uses chloride concentrations at the seafloor and the SMT as endmembers. Conservative mixing of pore water constituents implies that an undetermined physical process is primarily responsible for the nonlinearity of the pore water-depth profiles. In limited cases where the sulfate and DIC concentrations deviated from conservative mixing between the seafloor and SMT, the ??13C-DIC mixing diagrams suggest that the excess DIC is produced from a 13C-depleted source that could only be accounted for by microbial methane, the dominant form of methane identified during this study. We conclude that AOM is the most prevalent sink for sulfate and that it occurs primarily at the SMT at this Keathley Canyon site.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Marine and Petroleum Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.marpetgeo.2008.01.016","issn":"02648","usgsCitation":"Pohlman, J., Ruppel, C., Hutchinson, D.R., Downer, R., and Coffin, R., 2008, Assessing sulfate reduction and methane cycling in a high salinity pore water system in the northern Gulf of Mexico: Marine and Petroleum Geology, v. 25, no. 9, p. 942-951, https://doi.org/10.1016/j.marpetgeo.2008.01.016.","productDescription":"10 p.","startPage":"942","endPage":"951","costCenters":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":476682,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://hdl.handle.net/1912/2618","text":"External Repository"},{"id":239268,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":211892,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.marpetgeo.2008.01.016"}],"volume":"25","issue":"9","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059ede3e4b0c8380cd49aa1","contributors":{"authors":[{"text":"Pohlman, J. W. 0000-0002-3563-4586","orcid":"https://orcid.org/0000-0002-3563-4586","contributorId":38362,"corporation":false,"usgs":true,"family":"Pohlman","given":"J. W.","affiliations":[],"preferred":false,"id":426937,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ruppel, C.","contributorId":82050,"corporation":false,"usgs":true,"family":"Ruppel","given":"C.","email":"","affiliations":[],"preferred":false,"id":426939,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hutchinson, D. R.","contributorId":31770,"corporation":false,"usgs":true,"family":"Hutchinson","given":"D.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":426936,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Downer, R.","contributorId":10524,"corporation":false,"usgs":true,"family":"Downer","given":"R.","email":"","affiliations":[],"preferred":false,"id":426935,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Coffin, R.B.","contributorId":59628,"corporation":false,"usgs":true,"family":"Coffin","given":"R.B.","email":"","affiliations":[],"preferred":false,"id":426938,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70030382,"text":"70030382 - 2008 - A 1500-year holocene caribbean climate archive from the Blue Hole, lighthouse reef, belize","interactions":[],"lastModifiedDate":"2012-03-12T17:21:03","indexId":"70030382","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2220,"text":"Journal of Coastal Research","active":true,"publicationSubtype":{"id":10}},"title":"A 1500-year holocene caribbean climate archive from the Blue Hole, lighthouse reef, belize","docAbstract":"Sediment cores (up to 6 m in length) from the bottom of the Blue Hole, a 125 m deep Pleistocene sinkhole located in the lagoon of Lighthouse Reef Atoll, Belize, consist of undisturbed, annually layered biogenic carbonate muds and silts with intercalated coarser grained storm beds. The sedimentation rate of the layered sections is 2.5 mm/y on average, and the long cores span the past 1500 years. Oxygen isotopes of laminated sediment provide a late Holocene climate proxy: A high-resolution ??18O time series traces the final Migration Period Pessimum, the Medieval Warm Period, the Little Ice Age, and the subsequent temperature rise. Carbon isotopes (??13C) decrease up core and show the impacts of the decline of the Mayan culture and the Suess effect. Time series analyses of ??18O and ??13C content reveal 88-, 60-, 52-, and 32-year cyclicities, and suggest solar forcing. Storm event beds are most common during AD 650-850, around AD 1000, during AD 1200-1300, and AD 1450-1550. Major storm beds are rare during the past 500 years BP.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Coastal Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.2112/07-0891.1","issn":"07490","usgsCitation":"Gischler, E., Shinn, E., Oschmann, W., Fiebig, J., and Buster, N., 2008, A 1500-year holocene caribbean climate archive from the Blue Hole, lighthouse reef, belize: Journal of Coastal Research, v. 24, no. 6, p. 1495-1505, https://doi.org/10.2112/07-0891.1.","startPage":"1495","endPage":"1505","numberOfPages":"11","costCenters":[],"links":[{"id":211861,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2112/07-0891.1"},{"id":239233,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"24","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e2c0e4b0c8380cd45bfe","contributors":{"authors":[{"text":"Gischler, E.","contributorId":43944,"corporation":false,"usgs":true,"family":"Gischler","given":"E.","affiliations":[],"preferred":false,"id":426931,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Shinn, E.A.","contributorId":38610,"corporation":false,"usgs":true,"family":"Shinn","given":"E.A.","email":"","affiliations":[],"preferred":false,"id":426930,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Oschmann, W.","contributorId":49979,"corporation":false,"usgs":true,"family":"Oschmann","given":"W.","email":"","affiliations":[],"preferred":false,"id":426933,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Fiebig, J.","contributorId":48387,"corporation":false,"usgs":true,"family":"Fiebig","given":"J.","affiliations":[],"preferred":false,"id":426932,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Buster, N.A.","contributorId":105518,"corporation":false,"usgs":true,"family":"Buster","given":"N.A.","affiliations":[],"preferred":false,"id":426934,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70030353,"text":"70030353 - 2008 - Meso- and micropore characteristics of coal lithotypes: Implications for CO2 adsorption","interactions":[],"lastModifiedDate":"2012-03-12T17:21:02","indexId":"70030353","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1513,"text":"Energy and Fuels","active":true,"publicationSubtype":{"id":10}},"title":"Meso- and micropore characteristics of coal lithotypes: Implications for CO2 adsorption","docAbstract":"Lithotypes (vitrain, clarain, and fusain) of high volatile bituminous Pennsylvanian coals (Ro of 0.56-0.62%) from Indiana (the Illinois Basin) have been studied with regard to meso- and micropore characteristics using low-pressure nitrogen and carbon dioxide adsorption techniques, respectively. High-pressure CO2 adsorption isotherms were obtained from lithotypes of the Lower Block Coal Member (the Brazil Formation) and the Springfield Coal Member (the Petersburg Formation), and after evacuation of CO2, the lithotypes were re-analyzed for meso- and micropore characteristics to investigate changes related to high-pressure CO2 adsorption. Coal lithotypes have differing Brunauer-Emmett-Teller (BET) surface areas and mesopore volumes, with significantly lower values in fusains than in vitrains or clarains. Fusains have very limited pore volume in the pore size width of 4-10 nm, and the volume, increases with an increase in pore size, in contrast to vitrain, for which a 4-10 nm range is the dominant pore'Wlidth. For clarain, both pores of 4-10 nm and pores larger than 20 nm contribute substantially to the mesoporosity. Micropore surface areas are the smallest for fusain (from 72.8 to 98.2 m2/g), largest for vitrain (from 125.0 to,158.4 m2 /g), and intermediate for clarain (from 110.5 to 124.4 m2/g). Similar relationships are noted for micropore volumes, and the lower values of these parameters in fusains are related to smaller volumes of all incremental micropore sizes. In the Springfield and the Lower Block Coal Members, among lithotypes studied, fusain has the lowest adsorption capacity. For the Lower Block, vitrain has significantly higher adsorption capacity than fusain and clarain, whereas for the Springfield, vitrain and clarain have comparable but still significantly higher adsorption capacities than fusain. The Lower Block vitrain and fusain have much higher adsorption capacities than those in the Springfield, whereas the clarains of the two coals are comparable. After exposure of coal to CO2 at high pressure, vitrains experienced the largest porosity changes among all lithotypes studied. These changes are dominantly manifested in the mesoporosity (decrease in mesopore volume) range; whereas little to no change occurred in the micropore size range. In other lithotypes (clarains, the dominant lithology in the coals studied, and sporadic fusains), the changes were minimal. ?? 2008 American Chemical Society.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Energy and Fuels","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1021/ef800544g","issn":"08870","usgsCitation":"Mastalerz, M., Drobniak, A., and Rupp, J., 2008, Meso- and micropore characteristics of coal lithotypes: Implications for CO2 adsorption: Energy and Fuels, v. 22, no. 6, p. 4049-4061, https://doi.org/10.1021/ef800544g.","startPage":"4049","endPage":"4061","numberOfPages":"13","costCenters":[],"links":[{"id":211949,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1021/ef800544g"},{"id":239337,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"22","issue":"6","noUsgsAuthors":false,"publicationDate":"2008-10-21","publicationStatus":"PW","scienceBaseUri":"505a5441e4b0c8380cd6cf17","contributors":{"authors":[{"text":"Mastalerz, Maria","contributorId":78065,"corporation":false,"usgs":true,"family":"Mastalerz","given":"Maria","affiliations":[],"preferred":false,"id":426813,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Drobniak, A.","contributorId":11748,"corporation":false,"usgs":true,"family":"Drobniak","given":"A.","affiliations":[],"preferred":false,"id":426812,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Rupp, J.","contributorId":78128,"corporation":false,"usgs":true,"family":"Rupp","given":"J.","email":"","affiliations":[],"preferred":false,"id":426814,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70033354,"text":"70033354 - 2008 - Late Pleistocene Hansel Valley basaltic ash, northern Lake Bonneville, Utah, USA","interactions":[],"lastModifiedDate":"2012-03-12T17:21:35","indexId":"70033354","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3217,"text":"Quaternary International","active":true,"publicationSubtype":{"id":10}},"title":"Late Pleistocene Hansel Valley basaltic ash, northern Lake Bonneville, Utah, USA","docAbstract":"The Hansel Valley ash bed lies within 5 cm of the base of deposits of Lake Bonneville (???28 ka) in the vicinity of Great Salt Lake and provides a useful stratigraphic marker for this area of the lake basin. However, it has not been matched to an eruptive edifice, presumably because such an edifice was eroded by waves of Lake Bonneville. We present data for the chemical composition of the tephra and for possible matching lavas and tephras of the region, as well as grain size data for the tephra in an attempt to identify the location of the eruption. Matches with other tephras are negative, but lavas near the coarsest ash deposits match well with the distinctive high values of TiO2 and P2O5 of the ash. Neither chemistry nor grain size data points uniquely to a source area, but an area near the northwest shore of Great Salt Lake and within Curlew Valley is most likely. The Hansel Valley ash is an example of an ash that has no direct numerical date from proximal deposits, despite considerable study, yet nonetheless is useful for stratigraphic studies by virtue of its known stratigraphic position and approximate age. Basaltic tephras commonly are not as widespread as their rhyolitic counterparts, and in some cases apparently are produced by eruptive sources that are short lived and whose edifices are not persistent. ?? 2007 Elsevier Ltd and INQUA.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Quaternary International","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.quaint.2007.03.016","issn":"10406182","usgsCitation":"Miller, D., Oviatt, C.G., and Nash, B., 2008, Late Pleistocene Hansel Valley basaltic ash, northern Lake Bonneville, Utah, USA: Quaternary International, v. 178, no. 1, p. 238-245, https://doi.org/10.1016/j.quaint.2007.03.016.","startPage":"238","endPage":"245","numberOfPages":"8","costCenters":[],"links":[{"id":213378,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.quaint.2007.03.016"},{"id":240999,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"178","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a4507e4b0c8380cd66f8f","contributors":{"authors":[{"text":"Miller, D. M. 0000-0003-3711-0441","orcid":"https://orcid.org/0000-0003-3711-0441","contributorId":104422,"corporation":false,"usgs":true,"family":"Miller","given":"D. M.","affiliations":[],"preferred":false,"id":440476,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Oviatt, Charles G.","contributorId":36580,"corporation":false,"usgs":false,"family":"Oviatt","given":"Charles","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":440475,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Nash, B.P.","contributorId":35115,"corporation":false,"usgs":true,"family":"Nash","given":"B.P.","email":"","affiliations":[],"preferred":false,"id":440474,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70033355,"text":"70033355 - 2008 - Influence of flow-through and renewal exposures on the toxicity of copper to rainbow trout","interactions":[],"lastModifiedDate":"2012-03-12T17:21:35","indexId":"70033355","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1480,"text":"Ecotoxicology and Environmental Safety","active":true,"publicationSubtype":{"id":10}},"title":"Influence of flow-through and renewal exposures on the toxicity of copper to rainbow trout","docAbstract":"We examined changes in water chemistry and copper (Cu) toxicity in three paired renewal and flow-through acute bioassays with rainbow trout (Oncorhynchus mykiss). Test exposure methodology influenced both exposure water chemistry and measured Cu toxicity. Ammonia and organic carbon concentrations were higher and the fraction of dissolved Cu lower in renewal tests than in paired flow-through tests. Cu toxicity was also lower in renewal tests; 96 h dissolved Cu LC50 values were 7-60% higher than LC50s from matching flow-through tests. LC50 values in both types of tests were related to dissolved organic carbon (DOC) concentrations in exposure tanks. Increases in organic carbon concentrations in renewal tests were associated with reduced Cu toxicity, likely as a result of the lower bioavailability of Cu-organic carbon complexes. The biotic ligand model of acute Cu toxicity tended to underpredict toxicity in the presence of DOC. Model fits between predicted and observed toxicity were improved by assuming that only 50% of the measured DOC was reactive, and that this reactive fraction was present as fulvic acid. ?? 2007 Elsevier Inc. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Ecotoxicology and Environmental Safety","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.ecoenv.2007.04.003","issn":"01476513","usgsCitation":"Welsh, P., Lipton, J., Mebane, C., and Marr, J., 2008, Influence of flow-through and renewal exposures on the toxicity of copper to rainbow trout: Ecotoxicology and Environmental Safety, v. 69, no. 2, p. 199-208, https://doi.org/10.1016/j.ecoenv.2007.04.003.","startPage":"199","endPage":"208","numberOfPages":"10","costCenters":[],"links":[{"id":213405,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.ecoenv.2007.04.003"},{"id":241029,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"69","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3b37e4b0c8380cd62319","contributors":{"authors":[{"text":"Welsh, P.G.","contributorId":86980,"corporation":false,"usgs":true,"family":"Welsh","given":"P.G.","email":"","affiliations":[],"preferred":false,"id":440479,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lipton, J.","contributorId":15841,"corporation":false,"usgs":true,"family":"Lipton","given":"J.","email":"","affiliations":[],"preferred":false,"id":440477,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mebane, C.A.","contributorId":84134,"corporation":false,"usgs":true,"family":"Mebane","given":"C.A.","email":"","affiliations":[],"preferred":false,"id":440478,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Marr, J.C.A.","contributorId":94108,"corporation":false,"usgs":true,"family":"Marr","given":"J.C.A.","email":"","affiliations":[],"preferred":false,"id":440480,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70033356,"text":"70033356 - 2008 - Progression in sulfur isotopic compositions from coal to fly ash: Examples from single-source combustion in Indiana","interactions":[],"lastModifiedDate":"2012-03-12T17:21:35","indexId":"70033356","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2033,"text":"International Journal of Coal Geology","active":true,"publicationSubtype":{"id":10}},"title":"Progression in sulfur isotopic compositions from coal to fly ash: Examples from single-source combustion in Indiana","docAbstract":"Sulfur occurs in multiple mineral forms in coals, and its fate in coal combustion is still not well understood. The sulfur isotopic composition of coal from two coal mines in Indiana and fly ash from two power plants that use these coals were studied using geological and geochemical methods. The two coal beds are Middle Pennsylvanian in age; one seam is the low-sulfur (< 1%) Danville Coal Member of the Dugger Formation and the other is the high-sulfur (> 5%) Springfield Coal Member of the Petersburg Formation. Both seams have ash contents of approximately 11%. Fly-ash samples were collected at various points in the ash-collection system in the two plants. The results show notable difference in ??34S for sulfur species within and between the low-sulfur and high-sulfur coal. The ??34S values for all sulfur species are exclusively positive in the low-sulfur Danville coal, whereas the ??34S values for sulfate, pyritic, and organic sulfur are both positive and negative in the high-sulfur Springfield coal. Each coal exhibits a distinct pattern of stratigraphic variation in sulfur isotopic composition. Overall, the ??34S for sulfur species values increase up the section in the low-sulfur Danville coal, whereas they show a decrease up the vertical section in the high-sulfur Springfield coal. Based on the evolution of ??34S for sulfur species, it is suggested that there was influence of seawater on peat swamp, with two marine incursions occurring during peat accumulation of the high-sulfur Springfield coal. Therefore, bacterial sulfate reduction played a key role in converting sulfate into hydrogen sulfide, sulfide minerals, and elemental sulfur. The differences in ??34S between sulfate sulfur and pyritic sulfur is very small between individual benches of both coals, implying that some oxidation occurred during deposition or postdeposition. The ??34S values for fly ash from the high-sulfur Springfield coal (averaging 9.7???) are greatly enriched in 34S relative to those in the parent coal (averaging 2.2???). This indicates a fractionation of sulfur isotopes during high-sulfur coal combustion. By contrast, the ??34S values for fly-ash samples from the low-sulfur Danville coal average 10.2???, only slightly enriched in 34S relative to those from the parent coal (average 7.5???). The ??34S values for bulk S determined directly from the fly-ash samples show close correspondence with the ??34S values for SO4- 2 leached from the fly ash in the low-sulfur coal, suggesting that the transition from pyrite to sulfate occurred via high-temperature oxidation during coal combustion. ?? 2007 Elsevier B.V. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"International Journal of Coal Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.coal.2007.06.004","issn":"01665162","usgsCitation":"Yaofa, J., Elswick, E., and Mastalerz, M., 2008, Progression in sulfur isotopic compositions from coal to fly ash: Examples from single-source combustion in Indiana: International Journal of Coal Geology, v. 73, no. 3-4, p. 273-284, https://doi.org/10.1016/j.coal.2007.06.004.","startPage":"273","endPage":"284","numberOfPages":"12","costCenters":[],"links":[{"id":213406,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.coal.2007.06.004"},{"id":241030,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"73","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a8ee0e4b0c8380cd7f43a","contributors":{"authors":[{"text":"Yaofa, Jiang","contributorId":25368,"corporation":false,"usgs":true,"family":"Yaofa","given":"Jiang","email":"","affiliations":[],"preferred":false,"id":440481,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Elswick, E.R.","contributorId":58473,"corporation":false,"usgs":true,"family":"Elswick","given":"E.R.","email":"","affiliations":[],"preferred":false,"id":440482,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mastalerz, Maria","contributorId":78065,"corporation":false,"usgs":true,"family":"Mastalerz","given":"Maria","affiliations":[],"preferred":false,"id":440483,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70033357,"text":"70033357 - 2008 - Paleomagnetic reorientation of San Andreas Fault Observatory at Depth (SAFOD) core","interactions":[],"lastModifiedDate":"2012-03-12T17:21:35","indexId":"70033357","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","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":"Paleomagnetic reorientation of San Andreas Fault Observatory at Depth (SAFOD) core","docAbstract":"We present a protocol for using paleomagnetic analysis to determine the absolute orientation of core recovered from the SAFOD borehole. Our approach is based on determining the direction of the primary remanent magnetization of a spot core recovered from the Great Valley Sequence during SAFOD Phase 2 and comparing its direction to the expected reference field direction for the Late Cretaceous in North America. Both thermal and alternating field demagnetization provide equally resolved magnetization, possibly residing in magnetite, that allow reorientation. Because compositionally similar siltstones and fine-grained sandstones were encountered in the San Andreas Fault Zone during Stage 2 rotary drilling, we expect that paleomagnetic reorientation will yield reliable core orientations for continuous core acquired from directly within and adjacent to the San Andreas Fault during SAFOD Phase 3, which will be key to interpretation of spatial properties of these rocks. Copyright 2008 by the American Geophysical Union.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geophysical Research Letters","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1029/2007GL030921","issn":"00948276","usgsCitation":"Pares, J., Schleicher, A., van der Pluijm, B., and Hickman, S., 2008, Paleomagnetic reorientation of San Andreas Fault Observatory at Depth (SAFOD) core: Geophysical Research Letters, v. 35, no. 2, https://doi.org/10.1029/2007GL030921.","costCenters":[],"links":[{"id":476691,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"http://hdl.handle.net/2027.42/95594","text":"External Repository"},{"id":213437,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2007GL030921"},{"id":241063,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"35","issue":"2","noUsgsAuthors":false,"publicationDate":"2008-01-23","publicationStatus":"PW","scienceBaseUri":"505a7414e4b0c8380cd77418","contributors":{"authors":[{"text":"Pares, J.M.","contributorId":54412,"corporation":false,"usgs":true,"family":"Pares","given":"J.M.","email":"","affiliations":[],"preferred":false,"id":440484,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schleicher, A.M.","contributorId":73395,"corporation":false,"usgs":true,"family":"Schleicher","given":"A.M.","email":"","affiliations":[],"preferred":false,"id":440486,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"van der Pluijm, B.A.","contributorId":56844,"corporation":false,"usgs":true,"family":"van der Pluijm","given":"B.A.","affiliations":[],"preferred":false,"id":440485,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hickman, S.","contributorId":79995,"corporation":false,"usgs":true,"family":"Hickman","given":"S.","email":"","affiliations":[],"preferred":false,"id":440487,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70033360,"text":"70033360 - 2008 - Evaluation and comparison of the IRS-P6 and the landsat sensors","interactions":[],"lastModifiedDate":"2017-04-03T12:39:55","indexId":"70033360","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1944,"text":"IEEE Transactions on Geoscience and Remote Sensing","active":true,"publicationSubtype":{"id":10}},"title":"Evaluation and comparison of the IRS-P6 and the landsat sensors","docAbstract":"The Indian Remote Sensing Satellite (IRS-P6), also called ResourceSat-1, was launched in a polar sun-synchronous orbit on October 17, 2003. It carries three sensors: the highresolution Linear Imaging Self-Scanner (LISS-IV), the mediumresolution Linear Imaging Self-Scanner (LISS-III), and the Advanced Wide-Field Sensor (AWiFS). These three sensors provide images of different resolutions and coverage. To understand the absolute radiometric calibration accuracy of IRS-P6 AWiFS and LISS-III sensors, image pairs from these sensors were compared to images from the Landsat-5 Thematic Mapper (TM) and Landsat-7 Enhanced TM Plus (ETM+) sensors. The approach involves calibration of surface observations based on image statistics from areas observed nearly simultaneously by the two sensors. This paper also evaluated the viability of data from these nextgeneration imagers for use in creating three National Land Cover Dataset (NLCD) products: land cover, percent tree canopy, and percent impervious surface. Individual products were consistent with previous studies but had slightly lower overall accuracies as compared to data from the Landsat sensors.","language":"English","publisher":"IEEE","doi":"10.1109/TGRS.2007.907426","issn":"01962892","usgsCitation":"Chander, G., Coan, M., and Scaramuzza, P.L., 2008, Evaluation and comparison of the IRS-P6 and the landsat sensors: IEEE Transactions on Geoscience and Remote Sensing, v. 46, no. 1, p. 209-221, https://doi.org/10.1109/TGRS.2007.907426.","productDescription":"13 p.","startPage":"209","endPage":"221","numberOfPages":"13","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":241031,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":213407,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1109/TGRS.2007.907426"}],"volume":"46","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0c06e4b0c8380cd529da","contributors":{"authors":[{"text":"Chander, G.","contributorId":51449,"corporation":false,"usgs":true,"family":"Chander","given":"G.","affiliations":[],"preferred":false,"id":440498,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Coan, M.J.","contributorId":47884,"corporation":false,"usgs":true,"family":"Coan","given":"M.J.","email":"","affiliations":[],"preferred":false,"id":440497,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Scaramuzza, P. L. 0000-0002-2616-8456","orcid":"https://orcid.org/0000-0002-2616-8456","contributorId":107504,"corporation":false,"usgs":true,"family":"Scaramuzza","given":"P.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":440499,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70033364,"text":"70033364 - 2008 - Isotopic variations of dissolved copper and zinc in stream waters affected by historical mining","interactions":[],"lastModifiedDate":"2018-10-17T09:56:23","indexId":"70033364","displayToPublicDate":"2008-01-01T00:00:00","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1759,"text":"Geochimica et Cosmochimica Acta","active":true,"publicationSubtype":{"id":10}},"title":"Isotopic variations of dissolved copper and zinc in stream waters affected by historical mining","docAbstract":"<p>Zinc and Cu play important roles in the biogeochemistry of natural systems, and it is likely that these interactions result in mass-dependent fractionations of their stable isotopes. In this study, we examine the relative abundances of dissolved Zn and Cu isotopes in a variety of stream waters draining six historical mining districts located in the United States and Europe. Our goals were to (1) determine whether streams from different geologic settings have unique or similar Zn and Cu isotopic signatures and (2) to determine whether Zn and Cu isotopic signatures change in response to changes in dissolved metal concentrations over well-defined diel (24-h) cycles.</p><p>Average δ<sup>66</sup>Zn and δ<sup>65</sup>Cu values for streams varied from +0.02‰ to +0.46‰ and −0.7‰ to +1.4‰, respectively, demonstrating that Zn and Cu isotopes are heterogeneous among the measured streams. Zinc or Cu isotopic changes were not detected within the resolution of our measurements over diel cycles for most streams. However, diel changes in Zn isotopes were recorded in one stream where the fluctuations of dissolved Zn were the largest. We calculate an apparent separation factor of ∼0.3‰ (<sup>66/64</sup>Zn) between the dissolved and solid Zn reservoirs in this stream with the solid taking up the lighter Zn isotope. The preference of the lighter isotope in the solid reservoir may reflect metabolic uptake of Zn by microorganisms. Additional field investigations must evaluate the contributions of soils, rocks, minerals, and anthropogenic components to Cu and Zn isotopic fluxes in natural waters. Moreover, rigorous experimental work is necessary to quantify fractionation factors for the biogeochemical reactions that are likely to impact Cu and Zn isotopes in hydrologic systems. This initial investigation of Cu and Zn isotopes in stream waters suggests that these isotopes may be powerful tools for probing biogeochemical processes in surface waters on a variety of temporal and spatial scales.</p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.gca.2007.11.014","issn":"00167037","usgsCitation":"Borrok, D.M., Nimick, D., Wanty, R.B., and Ridley, W.I., 2008, Isotopic variations of dissolved copper and zinc in stream waters affected by historical mining: Geochimica et Cosmochimica Acta, v. 72, no. 2, p. 329-344, https://doi.org/10.1016/j.gca.2007.11.014.","productDescription":"16 p.","startPage":"329","endPage":"344","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":241068,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":213442,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.gca.2007.11.014"}],"volume":"72","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3fbfe4b0c8380cd647ae","contributors":{"authors":[{"text":"Borrok, David M.","contributorId":26056,"corporation":false,"usgs":true,"family":"Borrok","given":"David","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":440512,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Nimick, David","contributorId":19643,"corporation":false,"usgs":true,"family":"Nimick","given":"David","affiliations":[],"preferred":false,"id":440514,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wanty, Richard B. 0000-0002-2063-6423 rwanty@usgs.gov","orcid":"https://orcid.org/0000-0002-2063-6423","contributorId":443,"corporation":false,"usgs":true,"family":"Wanty","given":"Richard","email":"rwanty@usgs.gov","middleInitial":"B.","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":440513,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ridley, William I. 0000-0001-6787-558X iridley@usgs.gov","orcid":"https://orcid.org/0000-0001-6787-558X","contributorId":1160,"corporation":false,"usgs":true,"family":"Ridley","given":"William","email":"iridley@usgs.gov","middleInitial":"I.","affiliations":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":440515,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
]}