The type section of the Barstow Formation in the Mud Hills, north of Barstow, is a reference section for early to middle Miocene paleontology, magnetostratigraphy, and dated volcanic episodes. Thanks to this robust chronologic framework, much of the interpretation of the paleogeography of the region from about 18 Ma to 13 Ma is based on study of the rocks in the Mud Hills. Eastward from the type section, the Barstow Formation typically is altered and structurally complex, and therefore it is hard to fit into the patterns inferred for sedimentation at the type section. We have studied ten tuff beds in five locations, extracting zircons that are partly eruptive components of the volcanic ash and partly detrital. Ion microprobe dating of the zircons associated with the ashes allows us to improve stratigraphic correlations. Dated tuffs range from 19.3 Ma to ~14.8 Ma. In several of the sections, we dated tuffs in the range 16.2-16.5 Ma, about the same age as the ~16.3 Ma Rak Tuff in the type section. The beginning of lacustrine limestone, shale, and siltstone deposition varies significantly, from ~16.3 Ma in the type section to ~18.5 Ma in hills to the east and the Calico Mountains, and greater than 19.3 Ma at Harvard Hill. At ~16.3 Ma, the sedimentary rocks ranged (west to east) from silty sandstone and limestone, to mudstone with gypsum, to massive mudstone, and then to sandstone. If the sections have not been greatly shuffled by subsequent faulting, the picture that emerges is one of a broad basin whose center near the Yermo Hills was occupied by a lake that was much longer lived and deeper than to the east and west.
","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Raising Questions in the Central Mojave Desert","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"California State University Desert Studies Center 2013 Desert Symposium","language":"English","publisher":"California State University Fullerton","usgsCitation":"Miller, D., Rosario, J.E., Leslie, S.R., and Vazquez, J.A., 2013, Paleogeographic insights based on new U-Pb dates for altered tuffs in the Miocene Barstow Formation, California, in Raising Questions in the Central Mojave Desert, p. 31-38.","productDescription":"8 p.","startPage":"31","endPage":"38","ipdsId":"IP-044824","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":350064,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","publishingServiceCenter":{"id":14,"text":"Menlo Park PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5a610312e4b06e28e9c254ac","contributors":{"authors":[{"text":"Miller, David M. 0000-0003-3711-0441 dmiller@usgs.gov","orcid":"https://orcid.org/0000-0003-3711-0441","contributorId":140769,"corporation":false,"usgs":true,"family":"Miller","given":"David M.","email":"dmiller@usgs.gov","affiliations":[{"id":309,"text":"Geology and Geophysics Science Center","active":true,"usgs":true},{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":725188,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rosario, Jose E.","contributorId":201396,"corporation":false,"usgs":false,"family":"Rosario","given":"Jose","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":725190,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Leslie, Shannon R.","contributorId":148038,"corporation":false,"usgs":false,"family":"Leslie","given":"Shannon","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":725191,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Vazquez, Jorge A. 0000-0003-2754-0456 jvazquez@usgs.gov","orcid":"https://orcid.org/0000-0003-2754-0456","contributorId":4458,"corporation":false,"usgs":true,"family":"Vazquez","given":"Jorge","email":"jvazquez@usgs.gov","middleInitial":"A.","affiliations":[{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true},{"id":5056,"text":"Office of the AD Energy and Minerals, and Environmental Health","active":true,"usgs":true},{"id":501,"text":"Office of Science Quality and Integrity","active":true,"usgs":true}],"preferred":true,"id":725189,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70193611,"text":"70193611 - 2013 - Very long period conduit oscillations induced by rockfalls at Kilauea Volcano, Hawaii","interactions":[],"lastModifiedDate":"2017-11-02T13:37:27","indexId":"70193611","displayToPublicDate":"2013-01-01T00:00:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2314,"text":"Journal of Geophysical Research B: Solid Earth","active":true,"publicationSubtype":{"id":10}},"title":"Very long period conduit oscillations induced by rockfalls at Kilauea Volcano, Hawaii","docAbstract":"Eruptive activity at the summit of Kilauea Volcano, Hawaii, beginning in 2010 and continuing to the present time is characterized by transient outgassing bursts accompanied by very long period (VLP) seismic signals triggered by rockfalls from the vent walls impacting a lava lake in a pit within the Halemaumau pit crater. We use raw data recorded with an 11-station broadband network to model the source mechanism of signals accompanying two large rockfalls on 29 August 2012 and two smaller average rockfalls obtained by stacking over all events with similar waveforms to improve the signal-to-noise ratio. To determine the source centroid location and source mechanism, we minimize the residual error between data and synthetics calculated by the finite difference method for a point source embedded in a homogeneous medium that takes topography into account. We apply a new waveform inversion method that accounts for the contributions from both translation and tilt in horizontal seismograms through the use of Green's functions representing the seismometer response to translation and tilt ground motions. This method enables a robust description of the source mechanism over the period range 1–1000 s. The VLP signals associated with the rockfalls originate in a source region ∼1 km below the eastern perimeter of the Halemaumau pit crater. The observed waveforms are well explained by a simple volumetric source with geometry composed of two intersecting cracks including an east striking crack (dike) dipping 80° to the north, intersecting a north striking crack (another dike) dipping 65° to the east. Each rockfall is marked by a similar step-like inflation trailed by decaying oscillations of the volumetric source, attributed to the efficient coupling at the source centroid location of the pressure and momentum changes induced by the rock mass impacting the top of the lava column. Assuming a simple lumped parameter representation of the shallow magmatic system, the observed pressure and volume variations can be modeled with the following attributes: rockfall volume (200–4500 m3), length of magma column (120–210 m), diameter of pipe connecting the Halemaumau pit crater to the subjacent dike system (6 m), average thickness of the two underlying dikes (3–6 m), and effective magma viscosity (30–210 Pa s). Most rockfalls occur during episodes of sustained deflation of the Kilauea summit. The mass loss rate in the shallow magmatic system is estimated to be 1400–15,000 kg s−1 based on measurements of the temporal variation of VLP period in the two large rockfalls that occurred on 29 August 2012.
","language":"English","publisher":"AGU","doi":"10.1002/jgrb.50376","usgsCitation":"Chouet, B.A., and Dawson, P.B., 2013, Very long period conduit oscillations induced by rockfalls at Kilauea Volcano, Hawaii: Journal of Geophysical Research B: Solid Earth, v. 118, no. 10, p. 5352-5371, https://doi.org/10.1002/jgrb.50376.","productDescription":"20 p.","startPage":"5352","endPage":"5371","ipdsId":"IP-051372","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":474151,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1002/jgrb.50376","text":"Publisher Index Page"},{"id":348094,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawaii","otherGeospatial":"Kilauea Volcano","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -155.36453247070312,\n 19.32539900916396\n ],\n [\n -155.12832641601562,\n 19.32539900916396\n ],\n [\n -155.12832641601562,\n 19.51578670986151\n ],\n [\n -155.36453247070312,\n 19.51578670986151\n ],\n [\n -155.36453247070312,\n 19.32539900916396\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"118","issue":"10","publishingServiceCenter":{"id":14,"text":"Menlo Park PSC"},"noUsgsAuthors":false,"publicationDate":"2013-10-07","publicationStatus":"PW","scienceBaseUri":"59fc2eaee4b0531197b27fe9","contributors":{"authors":[{"text":"Chouet, Bernard A. 0000-0001-5527-0532 chouet@usgs.gov","orcid":"https://orcid.org/0000-0001-5527-0532","contributorId":3304,"corporation":false,"usgs":true,"family":"Chouet","given":"Bernard","email":"chouet@usgs.gov","middleInitial":"A.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":719619,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dawson, Phillip B. dawson@usgs.gov","contributorId":2751,"corporation":false,"usgs":true,"family":"Dawson","given":"Phillip","email":"dawson@usgs.gov","middleInitial":"B.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":719620,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70186188,"text":"70186188 - 2013 - Woodland dynamics at the northern range periphery: A challenge for protected area management in a changing world","interactions":[],"lastModifiedDate":"2017-03-31T09:50:19","indexId":"70186188","displayToPublicDate":"2013-01-01T00:00:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2980,"text":"PLoS ONE","active":true,"publicationSubtype":{"id":10}},"title":"Woodland dynamics at the northern range periphery: A challenge for protected area management in a changing world","docAbstract":"Managers of protected natural areas increasingly are confronted with novel ecological conditions and conflicting objectives to preserve the past while fostering resilience for an uncertain future. This dilemma may be pronounced at range peripheries where rates of change are accelerated and ongoing invasions often are perceived as threats to local ecosystems. We provide an example from City of Rocks National Reserve (CIRO) in southern Idaho, positioned at the northern range periphery of pinyon-juniper (P-J) woodland. Reserve managers are concerned about P-J woodland encroachment into adjacent sagebrush steppe, but the rates and biophysical variability of encroachment are not well documented and management options are not well understood. We quantified the rate and extent of woodland change between 1950 and 2009 based on a random sample of aerial photo interpretation plots distributed across biophysical gradients. Our study revealed that woodland cover remained at approximately 20% of the study area over the 59-year period. In the absence of disturbance, P-J woodlands exhibited the highest rate of increase among vegetation types at 0.37% yr−1. Overall, late-successional P-J stands increased in area by over 100% through the process of densification (infilling). However, wildfires during the period resulted in a net decrease of woody evergreen vegetation, particularly among early and mid-successional P-J stands. Elevated wildfire risk associated with expanding novel annual grasslands and drought is likely to continue to be a fundamental driver of change in CIRO woodlands. Because P-J woodlands contribute to regional biodiversity and may contract at trailing edges with global warming, CIRO may become important to P-J woodland conservation in the future. Our study provides a widely applicable toolset for assessing woodland ecotone dynamics that can help managers reconcile the competing demands to maintain historical fidelity and contribute meaningfully to the U.S. protected area network in a future with novel, no-analog ecosystems.
","language":"English","publisher":"Public Library of Science","doi":"10.1371/journal.pone.0070454","usgsCitation":"Powell, S.L., Andrew J. Hansen, Rodhouse, T., Garrett, L.K., Betancourt, J.L., Dicus, G.H., and Lonneker, M.K., 2013, Woodland dynamics at the northern range periphery: A challenge for protected area management in a changing world: PLoS ONE, v. 8, no. 7, e70454; 10 p., https://doi.org/10.1371/journal.pone.0070454.","productDescription":"e70454; 10 p.","ipdsId":"IP-046134","costCenters":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"links":[{"id":488986,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1371/journal.pone.0070454","text":"Publisher Index Page"},{"id":338888,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Idaho","otherGeospatial":"City of Rocks National Reserve","volume":"8","issue":"7","publishingServiceCenter":{"id":9,"text":"Reston PSC"},"noUsgsAuthors":false,"publicationDate":"2013-07-29","publicationStatus":"PW","scienceBaseUri":"58df6ac8e4b02ff32c6aea73","contributors":{"authors":[{"text":"Powell, Scott L.","contributorId":190213,"corporation":false,"usgs":false,"family":"Powell","given":"Scott","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":687813,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Andrew J. Hansen","contributorId":190210,"corporation":false,"usgs":false,"family":"Andrew J. Hansen","affiliations":[],"preferred":false,"id":687838,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Rodhouse, Thomas J.","contributorId":127378,"corporation":false,"usgs":false,"family":"Rodhouse","given":"Thomas J.","affiliations":[{"id":6924,"text":"National Park Service, Upper Columbia Basin Network","active":true,"usgs":false}],"preferred":false,"id":687817,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Garrett, Lisa K.","contributorId":190212,"corporation":false,"usgs":false,"family":"Garrett","given":"Lisa","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":687814,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Betancourt, Julio L. 0000-0002-7165-0743 jlbetanc@usgs.gov","orcid":"https://orcid.org/0000-0002-7165-0743","contributorId":3376,"corporation":false,"usgs":true,"family":"Betancourt","given":"Julio","email":"jlbetanc@usgs.gov","middleInitial":"L.","affiliations":[{"id":554,"text":"Science and Decisions Center","active":true,"usgs":true},{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true},{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":687818,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Dicus, Gordon H.","contributorId":190211,"corporation":false,"usgs":false,"family":"Dicus","given":"Gordon","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":687816,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"Lonneker, Meghan K.","contributorId":190225,"corporation":false,"usgs":false,"family":"Lonneker","given":"Meghan","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":687815,"contributorType":{"id":1,"text":"Authors"},"rank":15}]}} ,{"id":70136386,"text":"70136386 - 2013 - Assessing winter cover crop nutrient uptake efficiency using a water quality simulation model","interactions":[],"lastModifiedDate":"2015-01-05T09:46:02","indexId":"70136386","displayToPublicDate":"2013-01-01T00:00:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1928,"text":"Hydrology and Earth System Sciences","active":true,"publicationSubtype":{"id":10}},"title":"Assessing winter cover crop nutrient uptake efficiency using a water quality simulation model","docAbstract":"Winter cover crops are an effective conservation management practice with potential to improve water quality. Throughout the Chesapeake Bay Watershed (CBW), which is located in the Mid-Atlantic US, winter cover crop use has been emphasized and federal and state cost-share programs are available to farmers to subsidize the cost of winter cover crop establishment. The objective of this study was to assess the long-term effect of planting winter cover crops at the watershed scale and to identify critical source areas of high nitrate export. A physically-based watershed simulation model, Soil and Water Assessment Tool (SWAT), was calibrated and validated using water quality monitoring data and satellite-based estimates of winter cover crop species performance to simulate hydrological processes and nutrient cycling over the period of 1991–2000. Multiple scenarios were developed to obtain baseline information on nitrate loading without winter cover crops planted and to investigate how nitrate loading could change with different winter cover crop planting scenarios, including different species, planting times, and implementation areas. The results indicate that winter cover crops had a negligible impact on water budget, but significantly reduced nitrate leaching to groundwater and delivery to the waterways. Without winter cover crops, annual nitrate loading was approximately 14 kg ha−1, but it decreased to 4.6–10.1 kg ha−1 with winter cover crops resulting in a reduction rate of 27–67% at the watershed scale. Rye was most effective, with a potential to reduce nitrate leaching by up to 93% with early planting at the field scale. Early planting of winter cover crops (~30 days of additional growing days) was crucial, as it lowered nitrate export by an additional ~2 kg ha−1 when compared to late planting scenarios. The effectiveness of cover cropping increased with increasing extent of winter cover crop implementation. Agricultural fields with well-drained soils and those that were more frequently used to grow corn had a higher potential for nitrate leaching and export to the waterways. This study supports the effective implement of winter cover crop programs, in part by helping to target critical pollution source areas for winter cover crop implementation.
","language":"English","publisher":"European Geosciences Union","doi":"10.5194/hessd-10-14229-2013","collaboration":"Department of Geographical Sciences, University of Maryland, College Park, MD; USDA-ARS, Hydrology and Remote Sensing Laboratory, Beltsville, MD; Dream it Do it Western New York, Jamestown, NY; USDA Forest Service, Northern Research Station, Beltsville, MD","usgsCitation":"Yeo, I., Lee, S., Sadeghi, A.M., Beeson, P.C., Hively, W., McCarty, G.W., and Lang, M.W., 2013, Assessing winter cover crop nutrient uptake efficiency using a water quality simulation model: Hydrology and Earth System Sciences, v. 10, no. 11, p. 14229-14263, https://doi.org/10.5194/hessd-10-14229-2013.","productDescription":"35 p.","startPage":"14229","endPage":"14263","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-056041","costCenters":[{"id":242,"text":"Eastern Geographic Science Center","active":true,"usgs":true}],"links":[{"id":474018,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.5194/hessd-10-14229-2013","text":"Publisher Index Page"},{"id":296981,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","otherGeospatial":"Chesapeake Bay Watershed","volume":"10","issue":"11","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"54dd2b3ce4b08de9379b32bf","contributors":{"authors":[{"text":"Yeo, In-Young","contributorId":131145,"corporation":false,"usgs":false,"family":"Yeo","given":"In-Young","email":"","affiliations":[{"id":7261,"text":"Department of Geographical Sciences, University of Maryland, College Park, MD, 20742","active":true,"usgs":false}],"preferred":false,"id":537473,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lee, Sangchui","contributorId":131146,"corporation":false,"usgs":false,"family":"Lee","given":"Sangchui","email":"","affiliations":[{"id":7261,"text":"Department of Geographical Sciences, University of Maryland, College Park, MD, 20742","active":true,"usgs":false}],"preferred":false,"id":537474,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Sadeghi, Ali M.","contributorId":131147,"corporation":false,"usgs":false,"family":"Sadeghi","given":"Ali","email":"","middleInitial":"M.","affiliations":[{"id":7262,"text":"USDA-ARS, Hydrology and Remote Sensing Laboratory, Beltsville, MD 20705","active":true,"usgs":false}],"preferred":false,"id":537475,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Beeson, Peter C.","contributorId":131148,"corporation":false,"usgs":false,"family":"Beeson","given":"Peter","email":"","middleInitial":"C.","affiliations":[{"id":7263,"text":"Dream it Do it Western New York, Jamestown, NY 14701","active":true,"usgs":false}],"preferred":false,"id":537476,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Hively, W. Dean whively@usgs.gov","contributorId":4919,"corporation":false,"usgs":true,"family":"Hively","given":"W. Dean","email":"whively@usgs.gov","affiliations":[{"id":242,"text":"Eastern Geographic Science Center","active":true,"usgs":true}],"preferred":false,"id":537472,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"McCarty, Greg W.","contributorId":131149,"corporation":false,"usgs":false,"family":"McCarty","given":"Greg","email":"","middleInitial":"W.","affiliations":[{"id":7262,"text":"USDA-ARS, Hydrology and Remote Sensing Laboratory, Beltsville, MD 20705","active":true,"usgs":false}],"preferred":false,"id":537477,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Lang, Megan W.","contributorId":131150,"corporation":false,"usgs":false,"family":"Lang","given":"Megan","email":"","middleInitial":"W.","affiliations":[{"id":7264,"text":"USDA Forest Service, Northern Research Station, Beltsville, MD 20705","active":true,"usgs":false}],"preferred":false,"id":537478,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":70112962,"text":"70112962 - 2013 - Distribution of burrowing owls in east-central South Dakota","interactions":[],"lastModifiedDate":"2022-08-16T17:37:48.200358","indexId":"70112962","displayToPublicDate":"2013-01-01T00:00:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3580,"text":"The Prairie Naturalist","active":true,"publicationSubtype":{"id":10}},"title":"Distribution of burrowing owls in east-central South Dakota","docAbstract":"Western burrowing owl (Athene cunicularia hypugaea) populations have declined across much of western North America, particularly at the northern and eastern edges of the species’ breeding range (Martell et al. 2001, Murphy et al. 2001, Shyry et al. 2001, Skeel et al. 2001, Klute et al. 2003). In South Dakota, the burrowing owl is a summer resident that historically was relatively common throughout the state, but its range has decreased in recent decades, especially in the eastern half of the state (Whitney et al. 1978, South Dakota Ornithologists’ Union [SDOU] 1991, Peterson 1995). Tallman et al. (2002) described the species as uncommon to locally common in western South Dakota, uncommon in the north-central part of the state, and casual (i.e., not within the species’ normal range, but with 3–10 records in the past 10 years) elsewhere in the eastern half. The burrowing owl is a Species of Greatest Conservation Need (South Dakota Department of Game, Fish and Parks [SDGFP] 2006) and a Level I Priority Species in South Dakota (Bakker 2005).
","language":"English","publisher":"South Dakota State University","usgsCitation":"Shaffer, J.A., and Thiele, J., 2013, Distribution of burrowing owls in east-central South Dakota: The Prairie Naturalist, v. 45, no. 1, p. 60-64.","productDescription":"5 p.","startPage":"60","endPage":"64","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-040032","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":298765,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":298764,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://www.sdstate.edu/nrm/organizations/gpnss/tpn/2013-archive.cfm"}],"country":"United States","state":"South Dakota","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -104.04052734375,\n 42.65012181368025\n ],\n [\n -104.04052734375,\n 45.935870621190546\n ],\n [\n -96.416015625,\n 45.935870621190546\n ],\n [\n -96.416015625,\n 42.65012181368025\n ],\n [\n -104.04052734375,\n 42.65012181368025\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"45","issue":"1","edition":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"550bf32fe4b02e76d759cde6","contributors":{"authors":[{"text":"Shaffer, Jill A. 0000-0003-3172-0708 jshaffer@usgs.gov","orcid":"https://orcid.org/0000-0003-3172-0708","contributorId":3184,"corporation":false,"usgs":true,"family":"Shaffer","given":"Jill","email":"jshaffer@usgs.gov","middleInitial":"A.","affiliations":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"preferred":true,"id":518958,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Thiele, Jason P.","contributorId":116702,"corporation":false,"usgs":true,"family":"Thiele","given":"Jason P.","affiliations":[],"preferred":false,"id":518957,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70186190,"text":"70186190 - 2013 - The false spring of 2012, earliest in North American record","interactions":[],"lastModifiedDate":"2018-02-21T13:54:34","indexId":"70186190","displayToPublicDate":"2013-01-01T00:00:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1578,"text":"Eos, Transactions, American Geophysical Union","onlineIssn":"2324-9250","printIssn":"0096-394","active":true,"publicationSubtype":{"id":10}},"title":"The false spring of 2012, earliest in North American record","docAbstract":"Phenology - the study of recurring plant and animal life cycle stages, especially their timing and relationships with weather and climate - is becoming an essential tool for documenting, communicating, and anticipating the consequences of climate variability and change. For example, March 2012 broke numerous records for warm temperatures and early flowering in the United States [Karl et al., 2012; Elwood et al., 2013]. Many regions experienced a “false spring,” a period of weather in late winter or early spring sufficiently mild and long to bring vegetation out of dormancy prematurely, rendering it vulnerable to late frost and drought.
As global climate warms, increasingly warmer springs may combine with the random climatological occurrence of advective freezes, which result from cold air moving from one region to another, to dramatically increase the future risk of false springs, with profound ecological and economic consequences [e.g., Gu et al., 2008; Marino et al., 2011; Augspurger, 2013]. For example, in the false spring of 2012, an event embedded in long-term trends toward earlier spring [e.g., Schwartz et al., 2006], the frost damage to fruit trees totaled half a billion dollars in Michigan alone, prompting the federal government to declare the state a disaster area [Knudson, 2012].
","language":"English","publisher":"American Geophysical Union","doi":"10.1002/2013EO200001","usgsCitation":"Ault, T., Henebry, G., de Beurs, K., Schwartz, M., Betancourt, J.L., and Moore, D., 2013, The false spring of 2012, earliest in North American record: Eos, Transactions, American Geophysical Union, v. 94, no. 20, p. 181-183, https://doi.org/10.1002/2013EO200001.","productDescription":"3 p.","startPage":"181","endPage":"183","ipdsId":"IP-044739","costCenters":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"links":[{"id":490021,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1002/2013eo200001","text":"Publisher Index Page"},{"id":338885,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"94","issue":"20","publishingServiceCenter":{"id":9,"text":"Reston PSC"},"noUsgsAuthors":false,"publicationDate":"2013-05-14","publicationStatus":"PW","scienceBaseUri":"58df6ac8e4b02ff32c6aea71","contributors":{"authors":[{"text":"Ault, T.R.","contributorId":14229,"corporation":false,"usgs":true,"family":"Ault","given":"T.R.","email":"","affiliations":[],"preferred":false,"id":687839,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Henebry, G.M.","contributorId":98055,"corporation":false,"usgs":true,"family":"Henebry","given":"G.M.","affiliations":[],"preferred":false,"id":687827,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"de Beurs, K. M.","contributorId":28839,"corporation":false,"usgs":true,"family":"de Beurs","given":"K. M.","affiliations":[],"preferred":false,"id":687824,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Schwartz, M.D.","contributorId":190219,"corporation":false,"usgs":false,"family":"Schwartz","given":"M.D.","email":"","affiliations":[],"preferred":false,"id":687825,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Betancourt, Julio L. 0000-0002-7165-0743 jlbetanc@usgs.gov","orcid":"https://orcid.org/0000-0002-7165-0743","contributorId":3376,"corporation":false,"usgs":true,"family":"Betancourt","given":"Julio","email":"jlbetanc@usgs.gov","middleInitial":"L.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true},{"id":554,"text":"Science and Decisions Center","active":true,"usgs":true},{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":687826,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Moore, David","contributorId":190216,"corporation":false,"usgs":false,"family":"Moore","given":"David","affiliations":[],"preferred":false,"id":687823,"contributorType":{"id":1,"text":"Authors"},"rank":14}]}} ,{"id":70192591,"text":"70192591 - 2013 - 100,000-year-long terrestrial record of millennial-scale linkage between eastern North American mid-latitude paleovegetation shifts and Greenland ice-core oxygen isotope trends","interactions":[],"lastModifiedDate":"2017-10-26T22:13:15","indexId":"70192591","displayToPublicDate":"2013-01-01T00:00:00","publicationYear":"2013","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":"100,000-year-long terrestrial record of millennial-scale linkage between eastern North American mid-latitude paleovegetation shifts and Greenland ice-core oxygen isotope trends","docAbstract":"We document frequent, rapid, strong, millennial-scale paleovegetation shifts throughout the late Pleistocene, within a 100,000+ yr interval (~ 115–15 ka) of terrestrial sediments from the mid-Atlantic Region (MAR) of North America. High-resolution analyses of fossil pollen from one core locality revealed a continuously shifting sequence of thermally dependent forest assemblages, ranging between two endmembers: subtropical oak-tupelo-bald cypress-gum forest and high boreal spruce-pine forest. Sedimentary textural evidence indicates fluvial, paludal, and loess deposition, and paleosol formation, representing sequential freshwater to subaerial environments in which this record was deposited. Its total age\"depth model, based on radiocarbon and optically stimulated luminescence ages, ranges from terrestrial oxygen isotope stages (OIS) 6 to 1. The particular core sub-interval presented here is correlative in trend and timing to that portion of the oxygen isotope sequence common among several Greenland ice cores: interstades GI2 to GI24 (≈ OIS2–5 d). This site thus provides the first evidence for an essentially complete series of \"Dansgaard\"Oeschger\" climate events in the MAR. These data reveal that the ~ 100,000 yr preceding the Late Glacial and Holocene in the MAR of North America were characterized by frequently and dynamically changing climate states, and by vegetation shifts that closely tracked the Greenland paleoclimate sequence.
","language":"English","publisher":"Cambridge University Press","doi":"10.1016/j.yqres.2013.05.003","usgsCitation":"Litwin, R.J., Smoot, J.P., Pavich, M.J., Markewich, H.W., Brook, G., and Durika, N.J., 2013, 100,000-year-long terrestrial record of millennial-scale linkage between eastern North American mid-latitude paleovegetation shifts and Greenland ice-core oxygen isotope trends: Quaternary Research, v. 80, no. 2, p. 291-315, https://doi.org/10.1016/j.yqres.2013.05.003.","productDescription":"25 p.","startPage":"291","endPage":"315","ipdsId":"IP-039550","costCenters":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"links":[{"id":347518,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"80","issue":"2","publishingServiceCenter":{"id":9,"text":"Reston PSC"},"noUsgsAuthors":false,"publicationDate":"2017-01-20","publicationStatus":"PW","scienceBaseUri":"5a07ef4ae4b09af898c8cd89","contributors":{"authors":[{"text":"Litwin, Ronald J. 0000-0002-8661-1296 rlitwin@usgs.gov","orcid":"https://orcid.org/0000-0002-8661-1296","contributorId":2478,"corporation":false,"usgs":true,"family":"Litwin","given":"Ronald","email":"rlitwin@usgs.gov","middleInitial":"J.","affiliations":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true},{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true}],"preferred":true,"id":716474,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Smoot, Joseph P. 0000-0002-5064-8070 jpsmoot@usgs.gov","orcid":"https://orcid.org/0000-0002-5064-8070","contributorId":2742,"corporation":false,"usgs":true,"family":"Smoot","given":"Joseph","email":"jpsmoot@usgs.gov","middleInitial":"P.","affiliations":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true},{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true}],"preferred":true,"id":716471,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Pavich, Milan J. mpavich@usgs.gov","contributorId":2348,"corporation":false,"usgs":true,"family":"Pavich","given":"Milan","email":"mpavich@usgs.gov","middleInitial":"J.","affiliations":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"preferred":true,"id":716472,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Markewich, Helaine W. 0000-0001-9656-3243 helainem@usgs.gov","orcid":"https://orcid.org/0000-0001-9656-3243","contributorId":2008,"corporation":false,"usgs":true,"family":"Markewich","given":"Helaine","email":"helainem@usgs.gov","middleInitial":"W.","affiliations":[{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true}],"preferred":true,"id":716470,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Brook, George","contributorId":198579,"corporation":false,"usgs":false,"family":"Brook","given":"George","email":"","affiliations":[{"id":12697,"text":"University of Georgia","active":true,"usgs":false}],"preferred":false,"id":716475,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Durika, Nancy J. 0000-0001-7448-8908 ndurika@usgs.gov","orcid":"https://orcid.org/0000-0001-7448-8908","contributorId":4439,"corporation":false,"usgs":true,"family":"Durika","given":"Nancy","email":"ndurika@usgs.gov","middleInitial":"J.","affiliations":[{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true},{"id":596,"text":"U.S. Geological Survey National Center","active":false,"usgs":true}],"preferred":true,"id":716473,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70148399,"text":"70148399 - 2013 - Galveston Bay: Chapter D in Emergent wetlands status and trends in the northern Gulf of Mexico: 1950-2010","interactions":[],"lastModifiedDate":"2018-08-19T13:56:45","indexId":"70148399","displayToPublicDate":"2013-01-01T00:00:00","publicationYear":"2013","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":4,"text":"Other Government Series"},"chapter":"D","title":"Galveston Bay: Chapter D in Emergent wetlands status and trends in the northern Gulf of Mexico: 1950-2010","docAbstract":"The Galveston Bay estuary is located on the upper Texas Gulf coast (Lester and Gonzalez, 2002). It is composed of four major sub-bays - Galveston, Trinity, East, and West Bays. It is Texas’ largest estuary on the Gulf Coast with a total area of 155,399 hectares (384,000 acres) and 1,885 km (1,171 miles) of shoreline (Burgan and Engle, 2006). The volume of the bay has increased over the past 50 years due to subsidence, dredging, and sea level rise. Outside of ship channels, the maximum depth is only 3.7 m (12 ft), with the average depth ranging from 1.2 m (4 ft) to 2.4 m (8 ft) - even shallower in areas with widespread oyster reefs (Lester and Gonzalez, 2002). The tidal range is less than 0.9 m (3 ft), but water levels and circulation are highly influenced by wind. The estuary was formed in a drowned river delta, and its bayous were once channels of the Brazos and Trinity Rivers. Today, the watersheds surrounding the Trinity and San Jacinto Rivers, along with many other smaller bayous, feed into the bay. The entire Galveston Bay watershed is 85,470 km2 (33,000 miles2) large (Figure 1). Galveston Island, a 5,000 year old sand bar that lies at the western edge of the bay’s opening into the Gulf of Mexico, impedes the freshwater flow of the Trinity and San Jacinto Rivers into the Gulf, the majority of which comes from the Trinity. The Bolivar Peninsula lies at the eastern edge of the bay’s opening into the Gulf. Water flows into the Gulf at Bolivar Roads, 1 U.S. Geological Survey National Wetlands Research Center, 700 Cajundome Blvd., Lafayette, LA 70506 2 Harte Research Institute for Gulf of Mexico Studies, Texas A&M University - Corpus Christi, 6300 Ocean Drive, Unit 5869, Corpus Christi, Texas 78412 2 Galveston Pass, between Galveston Island and Bolivar Peninsula, and at San Luis Pass, between the western side of Galveston Island and Follets Island.
","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Emergent wetlands status and trends in the northern Gulf of Mexico: 1950-2010","largerWorkSubtype":{"id":4,"text":"Other Government Series"},"conferenceTitle":"2013 Gulf of Mexico Alliance (GOMA) All Hands Meeting","conferenceDate":"June 25-27, 2013","conferenceLocation":"Tampa, FL","language":"English","publisher":"U.S. Geological Survey and U.S. Environmental Protection Agency","usgsCitation":"Handley, L.R., Spear, K.A., Taylor, E., and Thatcher, C.A., 2013, Galveston Bay: Chapter D in Emergent wetlands status and trends in the northern Gulf of Mexico: 1950-2010, 17 p. .","productDescription":"17 p. ","ipdsId":"IP-061431","costCenters":[{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true}],"links":[{"id":332174,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://gom.usgs.gov/web/Site/EmWetStatusTrends"},{"id":332175,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Texas","otherGeospatial":"Galveston Bay ","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -94.7845458984375,\n 30.56699087315334\n ],\n [\n -95.712890625,\n 30.206861065952626\n ],\n [\n -96.185302734375,\n 30.021543509740027\n ],\n [\n -96.4654541015625,\n 29.897805610155874\n ],\n [\n -95.3887939453125,\n 28.839861937967964\n ],\n [\n -94.3231201171875,\n 29.530450107491063\n ],\n [\n -94.273681640625,\n 29.57345707301757\n ],\n [\n -94.7845458984375,\n 30.56699087315334\n ]\n ]\n ]\n }\n }\n ]\n}","publishingServiceCenter":{"id":5,"text":"Lafayette PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5853ba46e4b0e2663625f2d4","contributors":{"authors":[{"text":"Handley, Lawrence R. handleyl@usgs.gov","contributorId":3459,"corporation":false,"usgs":true,"family":"Handley","given":"Lawrence","email":"handleyl@usgs.gov","middleInitial":"R.","affiliations":[{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true}],"preferred":true,"id":547994,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Spear, Kathryn A. 0000-0001-8942-2856 speark@usgs.gov","orcid":"https://orcid.org/0000-0001-8942-2856","contributorId":1949,"corporation":false,"usgs":true,"family":"Spear","given":"Kathryn","email":"speark@usgs.gov","middleInitial":"A.","affiliations":[{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true},{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"preferred":true,"id":547993,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Taylor, Eleonor","contributorId":140514,"corporation":false,"usgs":false,"family":"Taylor","given":"Eleonor","email":"","affiliations":[{"id":13521,"text":"Harte Research Institute for Gulf of Mexico Studies, Texas A&M University-Corpus Christi","active":true,"usgs":false}],"preferred":false,"id":547995,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Thatcher, Cindy A. 0000-0003-0331-071X thatcherc@usgs.gov","orcid":"https://orcid.org/0000-0003-0331-071X","contributorId":2868,"corporation":false,"usgs":true,"family":"Thatcher","given":"Cindy","email":"thatcherc@usgs.gov","middleInitial":"A.","affiliations":[{"id":423,"text":"National Geospatial Program","active":true,"usgs":true},{"id":242,"text":"Eastern Geographic Science Center","active":true,"usgs":true},{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true}],"preferred":false,"id":547996,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70135130,"text":"70135130 - 2013 - Phylogeography, post-glacial gene flow, and population history of North American goshawks (Accipeter gentilis)","interactions":[],"lastModifiedDate":"2026-02-03T16:52:04.783422","indexId":"70135130","displayToPublicDate":"2013-01-01T00:00:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3544,"text":"The Auk","onlineIssn":"1938-4254","printIssn":"0004-8038","active":true,"publicationSubtype":{"id":10}},"title":"Phylogeography, post-glacial gene flow, and population history of North American goshawks (Accipeter gentilis)","docAbstract":"Climate cycling during the Quaternary played a critical role in the diversification of avian lineages in North America, greatly influencing the genetic characteristics of contemporary populations. To test the hypothesis that North American Northern Goshawks (Accipitergentilis) were historically isolated within multiple Late Pleistocene refugia, we assessed diversity and population genetic structure as well as migration rates and signatures of historical demography using mitochondrial control-region data. On the basis of sampling from 24 locales, we found that Northern Goshawks were genetically structured across a large portion of their North American range. Long-term population stability, combined with strong genetic differentiation, suggests that Northern Goshawks were historically isolated within at least three refugial populations representing two regions: the Pacific (CascadesSierra-Vancouver Island) and the Southwest (Colorado Plateau and Jemez Mountains). By contrast, populations experiencing significant growth were located in the Southeast Alaska-British Columbia, Arizona Sky Islands, Rocky Mountains, Great Lakes, and Appalachian bioregions. In the case of Southeast Alaska-British Columbia, Arizona Sky Islands, and Rocky Mountains, Northern Goshawks likely colonized these regions from surrounding refugia. The near fixation for several endemic haplotypes in the Arizona Sky Island Northern Goshawks (A. g apache) suggests long-term isolation subsequent to colonization. Likewise, Great Lakes and Appalachian Northern Goshawks differed significantly in haplotype frequencies from most Western Northern Goshawks, which suggests that they, too, experienced long-term isolation prior to a more recent recolonization of eastern U.S. forests.
","language":"English","publisher":"American Ornithological Society","doi":"10.1525/auk.2013.12120","usgsCitation":"Bayard De Volo, S., Reynolds, R.T., Sonsthagen, S.A., Talbot, S.L., and Antolin, M.F., 2013, Phylogeography, post-glacial gene flow, and population history of North American goshawks (Accipeter gentilis): The Auk, v. 130, no. 2, p. 342-354, https://doi.org/10.1525/auk.2013.12120.","productDescription":"13 p.","startPage":"342","endPage":"354","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-044035","costCenters":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"links":[{"id":296573,"rank":2,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":474041,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1525/auk.2013.12120","text":"Publisher Index Page"}],"country":"United States","volume":"130","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"54897cbfe4b027aeab78129d","contributors":{"authors":[{"text":"Bayard De Volo, Shelley","contributorId":127814,"corporation":false,"usgs":false,"family":"Bayard De Volo","given":"Shelley","email":"","affiliations":[{"id":6998,"text":"Department of Biology, Colorado State University","active":true,"usgs":false}],"preferred":false,"id":526915,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Reynolds, Richard T. 0000-0002-5193-786X","orcid":"https://orcid.org/0000-0002-5193-786X","contributorId":105393,"corporation":false,"usgs":false,"family":"Reynolds","given":"Richard","middleInitial":"T.","affiliations":[{"id":6679,"text":"US Forest Service, Rocky Mountain Research Station","active":true,"usgs":false}],"preferred":false,"id":526916,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Sonsthagen, Sarah A. 0000-0001-6215-5874 ssonsthagen@usgs.gov","orcid":"https://orcid.org/0000-0001-6215-5874","contributorId":3711,"corporation":false,"usgs":true,"family":"Sonsthagen","given":"Sarah","email":"ssonsthagen@usgs.gov","middleInitial":"A.","affiliations":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":526861,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Talbot, Sandra L. 0000-0002-3312-7214 stalbot@usgs.gov","orcid":"https://orcid.org/0000-0002-3312-7214","contributorId":140512,"corporation":false,"usgs":true,"family":"Talbot","given":"Sandra","email":"stalbot@usgs.gov","middleInitial":"L.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"preferred":true,"id":526862,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Antolin, Michael F.","contributorId":85469,"corporation":false,"usgs":false,"family":"Antolin","given":"Michael","email":"","middleInitial":"F.","affiliations":[{"id":6998,"text":"Department of Biology, Colorado State University","active":true,"usgs":false}],"preferred":false,"id":526917,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70193798,"text":"70193798 - 2013 - Management guidelines for enhancing Cerulean Warbler breeding habitat in Appalachian hardwood forests","interactions":[],"lastModifiedDate":"2017-12-20T15:35:58","indexId":"70193798","displayToPublicDate":"2013-01-01T00:00:00","publicationYear":"2013","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":9,"text":"Other Report"},"title":"Management guidelines for enhancing Cerulean Warbler breeding habitat in Appalachian hardwood forests","docAbstract":"The Cerulean Warbler (Setophaga cerulea) is a migratory songbird that breeds in mature deciduous forests of eastern North America. Cerulean Warblers (hereafter, ceruleans) require heavily forested landscapes for nesting and, within Appalachian forests, primarily occur on ridge tops and steep, upper slopes. They are generally associated with oakdominated (Quercus spp.) stands that contain gaps in the forest canopy, that have large diameter trees (>16 inches diameter breast height (dbh)), and that have well-developed understory-and upper-canopy layers. Ceruleans primarily use the midand upper-canopy where they glean insects from the surface of leaves and conceal their open cup nests. Because they are severely declining across much of their range (Fig. 1), habitat management is a high priority. Management for this species can also improve conditions for a number of other wildlife species that depend on the same structure.
","language":"English","publisher":" American Bird Conservancy","usgsCitation":"Wood, P., Sheehan, J., Keyser, P.D., Buehler, D.A., Larkin, J., Rodewald, A.D., Stoleson, S.H., Wigley, T.B., Mizel, J., Boves, T.J., George, G., Bakermans, M.H., Beachy, T.A., Evans, A., McDermott, M., Newell, F.L., Perkins, K.A., and White, M., 2013, Management guidelines for enhancing Cerulean Warbler breeding habitat in Appalachian hardwood forests, iii, 25 p.","productDescription":"iii, 25 p.","numberOfPages":"29","ipdsId":"IP-041124","costCenters":[{"id":199,"text":"Coop Res Unit Leetown","active":true,"usgs":true}],"links":[{"id":350151,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","otherGeospatial":"Appalachian Mountains","publishingServiceCenter":{"id":9,"text":"Reston PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5a610312e4b06e28e9c254b4","contributors":{"authors":[{"text":"Wood, Petra pbwood@usgs.gov","contributorId":169812,"corporation":false,"usgs":true,"family":"Wood","given":"Petra","email":"pbwood@usgs.gov","affiliations":[{"id":199,"text":"Coop Res Unit Leetown","active":true,"usgs":true},{"id":34541,"text":"West Virginia Cooperative Fish and Wildlife Research Unit","active":true,"usgs":false}],"preferred":false,"id":725292,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sheehan, James","contributorId":169745,"corporation":false,"usgs":false,"family":"Sheehan","given":"James","email":"","affiliations":[],"preferred":false,"id":725293,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Keyser, Patrick D.","contributorId":146945,"corporation":false,"usgs":false,"family":"Keyser","given":"Patrick","email":"","middleInitial":"D.","affiliations":[{"id":12716,"text":"University of Tennessee","active":true,"usgs":false}],"preferred":false,"id":725294,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Buehler, David A.","contributorId":176238,"corporation":false,"usgs":false,"family":"Buehler","given":"David","email":"","middleInitial":"A.","affiliations":[{"id":12716,"text":"University of Tennessee","active":true,"usgs":false}],"preferred":false,"id":725295,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Larkin, Jeff","contributorId":199993,"corporation":false,"usgs":false,"family":"Larkin","given":"Jeff","email":"","affiliations":[],"preferred":false,"id":725296,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Rodewald, Amanda D.","contributorId":169748,"corporation":false,"usgs":false,"family":"Rodewald","given":"Amanda","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":725297,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Stoleson, Scott H.","contributorId":98149,"corporation":false,"usgs":false,"family":"Stoleson","given":"Scott","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":725298,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Wigley, T. Bently","contributorId":169749,"corporation":false,"usgs":false,"family":"Wigley","given":"T.","email":"","middleInitial":"Bently","affiliations":[],"preferred":false,"id":725299,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Mizel, Jeremy","contributorId":199994,"corporation":false,"usgs":false,"family":"Mizel","given":"Jeremy","email":"","affiliations":[],"preferred":false,"id":725300,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Boves, Than J.","contributorId":169750,"corporation":false,"usgs":false,"family":"Boves","given":"Than","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":725301,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"George, Greg","contributorId":201442,"corporation":false,"usgs":false,"family":"George","given":"Greg","email":"","affiliations":[],"preferred":false,"id":725302,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Bakermans, Marja H.","contributorId":169752,"corporation":false,"usgs":false,"family":"Bakermans","given":"Marja","email":"","middleInitial":"H.","affiliations":[{"id":33354,"text":"Worcester Polytechnic Institute","active":true,"usgs":false}],"preferred":false,"id":725303,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Beachy, Tiffany A.","contributorId":169753,"corporation":false,"usgs":false,"family":"Beachy","given":"Tiffany","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":725304,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Evans, Andrea","contributorId":169754,"corporation":false,"usgs":false,"family":"Evans","given":"Andrea","email":"","affiliations":[],"preferred":false,"id":725305,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"McDermott, Molly E. 0000-0002-0000-0831","orcid":"https://orcid.org/0000-0002-0000-0831","contributorId":169743,"corporation":false,"usgs":false,"family":"McDermott","given":"Molly E.","affiliations":[],"preferred":false,"id":725306,"contributorType":{"id":1,"text":"Authors"},"rank":15},{"text":"Newell, Felicity L.","contributorId":169755,"corporation":false,"usgs":false,"family":"Newell","given":"Felicity","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":725307,"contributorType":{"id":1,"text":"Authors"},"rank":16},{"text":"Perkins, Kelly A.","contributorId":169756,"corporation":false,"usgs":false,"family":"Perkins","given":"Kelly","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":725308,"contributorType":{"id":1,"text":"Authors"},"rank":17},{"text":"White, Matt","contributorId":201443,"corporation":false,"usgs":false,"family":"White","given":"Matt","email":"","affiliations":[],"preferred":false,"id":725309,"contributorType":{"id":1,"text":"Authors"},"rank":18}]}} ,{"id":70154988,"text":"70154988 - 2013 - Spring migratory pathways and migration chronology of Canada geese (Branta canadensis interior) wintering at the Santee National Wildlife Refuge, South Carolina","interactions":[],"lastModifiedDate":"2020-12-23T14:14:31.829768","indexId":"70154988","displayToPublicDate":"2013-01-01T00:00:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1163,"text":"Canadian Field-Naturalist","active":true,"publicationSubtype":{"id":10}},"title":"Spring migratory pathways and migration chronology of Canada geese (Branta canadensis interior) wintering at the Santee National Wildlife Refuge, South Carolina","docAbstract":"We assessed the migratory pathways, migration chronology, and breeding ground affiliation of Canada Geese (Branta canadensis interior) that winter in and adjacent to the Santee National Wildlife Refuge in Summerton, South Carolina, United States. Satellite transmitters were fitted to eight Canada Geese at Santee National Wildlife Refuge during the winter of 2009–2010. Canada Geese departed Santee National Wildlife Refuge between 5 and 7 March 2010. Six Canada Geese followed a route that included stopovers in northeastern North Carolina and western New York, with three of those birds completing spring migration to breeding grounds associated with the Atlantic Population (AP). The mean distance between stopover sites along this route was 417 km, the mean total migration distance was 2838 km, and the Canada Geese arrived on AP breeding grounds on the eastern shore of Hudson Bay between 20 and 24 May 2010. Two Canada Geese followed a different route from that described above, with stopovers in northeastern Ohio, prior to arriving on the breeding grounds on 9 June 2010. Mean distance between stopover sites was 402 and 365 km for these two birds, and total migration distance was 4020 and 3650 km. These data represent the first efforts to track migratory Canada Geese from the southernmost extent of their current wintering range in the Atlantic Flyway. We did not track any Canada Geese to breeding grounds associated with the Southern James Bay Population. Caution should be used in the interpretation of this finding, however, because of the small sample size. We demonstrated that migratory Canada Geese wintering in South Carolina use at least two migratory pathways and that an affiliation with the Atlantic Population breeding ground exists.
","language":"English","publisher":"The Canadian Field-Naturalist","doi":"10.22621/cfn.v127i1.1402","usgsCitation":"Giles, M.M., Jodice, P.G., Baldwin, R.F., Stanton, J.D., and Epstein, M., 2013, Spring migratory pathways and migration chronology of Canada geese (Branta canadensis interior) wintering at the Santee National Wildlife Refuge, South Carolina: Canadian Field-Naturalist, v. 127, no. 1, p. 17-25, https://doi.org/10.22621/cfn.v127i1.1402.","productDescription":"9 p.","startPage":"17","endPage":"25","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-038246","costCenters":[{"id":198,"text":"Coop Res Unit Atlanta","active":true,"usgs":true}],"links":[{"id":474026,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.22621/cfn.v127i1.1402","text":"Publisher Index Page"},{"id":381611,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","otherGeospatial":"Santee National Wildlife Refuge","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -80.53665161132812,\n 33.4738357141558\n ],\n [\n -80.53665161132812,\n 33.56199537293026\n ],\n [\n -80.4473876953125,\n 33.56199537293026\n ],\n [\n -80.4473876953125,\n 33.4738357141558\n ],\n [\n -80.53665161132812,\n 33.4738357141558\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"127","issue":"1","publishingServiceCenter":{"id":8,"text":"Raleigh PSC"},"noUsgsAuthors":false,"publicationDate":"2013-07-14","publicationStatus":"PW","scienceBaseUri":"55b0beafe4b09a3b01b530a5","contributors":{"authors":[{"text":"Giles, Molly M.","contributorId":145797,"corporation":false,"usgs":false,"family":"Giles","given":"Molly","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":565331,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jodice, Patrick G.R. 0000-0001-8716-120X pjodice@usgs.gov","orcid":"https://orcid.org/0000-0001-8716-120X","contributorId":1119,"corporation":false,"usgs":true,"family":"Jodice","given":"Patrick","email":"pjodice@usgs.gov","middleInitial":"G.R.","affiliations":[{"id":198,"text":"Coop Res Unit Atlanta","active":true,"usgs":true}],"preferred":false,"id":564467,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Baldwin, Robert F.","contributorId":96415,"corporation":false,"usgs":true,"family":"Baldwin","given":"Robert","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":565332,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Stanton, John D.","contributorId":145798,"corporation":false,"usgs":false,"family":"Stanton","given":"John","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":565333,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Epstein, Marc","contributorId":145799,"corporation":false,"usgs":false,"family":"Epstein","given":"Marc","email":"","affiliations":[],"preferred":false,"id":565334,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70041928,"text":"70041928 - 2013 - Toxicity of sediments potentially contaminated by coal mining and natural gas extraction to unionid mussels and commonly tested benthic invertebrates","interactions":[],"lastModifiedDate":"2016-12-18T12:38:56","indexId":"70041928","displayToPublicDate":"2012-12-26T00:00:00","publicationYear":"2013","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":"Toxicity of sediments potentially contaminated by coal mining and natural gas extraction to unionid mussels and commonly tested benthic invertebrates","docAbstract":"Sediment toxicity tests were conducted to assess potential effects of contaminants associated with coal mining or natural gas extraction activities in the upper Tennessee River basin and eastern Cumberland River basin in the United States. Test species included two unionid mussels (rainbow mussel, Villosa iris, and wavy-rayed lampmussel, Lampsilis fasciola, 28-d exposures), and the commonly tested amphipod, Hyalella azteca (28-d exposure) and midge, Chironomus dilutus (10-d exposure). Sediments were collected from seven test sites with mussel communities classified as impacted and in proximity to coal mining or gas extraction activities, and from five reference sites with mussel communities classified as not impacted and no or limited coal mining or gas extraction activities. Additional samples were collected from six test sites potentially with high concentrations of polycyclic aromatic hydrocarbons (PAHs) and from a test site contaminated by a coal ash spill. Mean survival, length, or biomass of one or more test species was reduced in 10 of 14 test samples (71%) from impacted areas relative to the response of organisms in the five reference samples. A higher proportion of samples was classified as toxic to mussels (63% for rainbow mussels, 50% for wavy-rayed lampmussels) compared with amphipods (38%) or midge (38%). Concentrations of total recoverable metals and total PAHs in sediments did not exceed effects-based probable effect concentrations (PECs). However, the survival, length, or biomasses of the mussels were reduced significantly with increasing PEC quotients for metals and for total PAHs, or with increasing sum equilibrium-partitioning sediment benchmark toxic units for PAHs. The growth of the rainbow mussel also significantly decreased with increasing concentrations of a major anion (chloride) and major cations (calcium and magnesium) in sediment pore water. Results of the present study indicated that (1) the findings from laboratory tests were generally consistent with the field observations of impacts on mussel populations; (2) total recoverable metals, PAHs, or major ions, or all three in sediments might have contributed to the sediment toxicity; (3) the mussels were more sensitive to the contaminants in sediments than the commonly tested amphipod and midge; and (4) a sediment toxicity benchmark of 1.0 based on PECs may not be protective of mussels.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Toxicology and Chemistry","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Wiley","publisherLocation":"Hoboken, NJ","doi":"10.1002/etc.2032","usgsCitation":"Wang, N., Ingersoll, C.G., Kunz, J.L., Brumbaugh, W.G., Kane, C.M., Evans, R.B., Alexander, S., Walker, C., and Bakaletz, S., 2013, Toxicity of sediments potentially contaminated by coal mining and natural gas extraction to unionid mussels and commonly tested benthic invertebrates: Environmental Toxicology and Chemistry, v. 32, no. 1, p. 207-221, https://doi.org/10.1002/etc.2032.","productDescription":"15 p.","startPage":"207","endPage":"221","ipdsId":"IP-038575","costCenters":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"links":[{"id":264803,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -124.41,24.52 ], [ -124.41,49.0 ], [ -66.9,49.0 ], [ -66.9,24.52 ], [ -124.41,24.52 ] ] ] } } ] }","volume":"32","issue":"1","noUsgsAuthors":false,"publicationDate":"2012-10-15","publicationStatus":"PW","scienceBaseUri":"50e553d0e4b0a4aa5bb021d9","contributors":{"authors":[{"text":"Wang, Ning 0000-0002-2846-3352 nwang@usgs.gov","orcid":"https://orcid.org/0000-0002-2846-3352","contributorId":2818,"corporation":false,"usgs":true,"family":"Wang","given":"Ning","email":"nwang@usgs.gov","affiliations":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"preferred":true,"id":470398,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ingersoll, Christopher G. 0000-0003-4531-5949 cingersoll@usgs.gov","orcid":"https://orcid.org/0000-0003-4531-5949","contributorId":2071,"corporation":false,"usgs":true,"family":"Ingersoll","given":"Christopher","email":"cingersoll@usgs.gov","middleInitial":"G.","affiliations":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"preferred":true,"id":470397,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kunz, James L. 0000-0002-1027-158X jkunz@usgs.gov","orcid":"https://orcid.org/0000-0002-1027-158X","contributorId":3309,"corporation":false,"usgs":true,"family":"Kunz","given":"James","email":"jkunz@usgs.gov","middleInitial":"L.","affiliations":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"preferred":true,"id":470399,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Brumbaugh, William G. 0000-0003-0081-375X bbrumbaugh@usgs.gov","orcid":"https://orcid.org/0000-0003-0081-375X","contributorId":493,"corporation":false,"usgs":true,"family":"Brumbaugh","given":"William","email":"bbrumbaugh@usgs.gov","middleInitial":"G.","affiliations":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"preferred":true,"id":470396,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Kane, Cindy M.","contributorId":9549,"corporation":false,"usgs":true,"family":"Kane","given":"Cindy","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":470400,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Evans, R. Brian","contributorId":54088,"corporation":false,"usgs":true,"family":"Evans","given":"R.","email":"","middleInitial":"Brian","affiliations":[],"preferred":false,"id":470402,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Alexander, Steven","contributorId":80567,"corporation":false,"usgs":true,"family":"Alexander","given":"Steven","email":"","affiliations":[],"preferred":false,"id":470403,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Walker, Craig","contributorId":32802,"corporation":false,"usgs":true,"family":"Walker","given":"Craig","email":"","affiliations":[],"preferred":false,"id":470401,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Bakaletz, Steve","contributorId":84645,"corporation":false,"usgs":true,"family":"Bakaletz","given":"Steve","email":"","affiliations":[],"preferred":false,"id":470404,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}} ,{"id":70042064,"text":"70042064 - 2013 - Projected surface radiative forcing due to 2000--2050 land-cover land-use albedo change over the eastern United States","interactions":[],"lastModifiedDate":"2013-10-23T08:45:42","indexId":"70042064","displayToPublicDate":"2012-12-23T00:00:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2366,"text":"Journal of Land Change Science","active":true,"publicationSubtype":{"id":10}},"title":"Projected surface radiative forcing due to 2000--2050 land-cover land-use albedo change over the eastern United States","docAbstract":"Satellite-derived contemporary land-cover land-use (LCLU) and albedo data and modeled future LCLU are used to study the impact of LCLU change from 2000 to 2050 on surface albedo and radiative forcing for 19 ecoregions in the eastern United States. The modeled 2000–2050 LCLU changes indicate a future decrease in both agriculture and forested land and an increase in developed land that induces ecoregion radiative forcings ranging from −0.175 to 0.432 W m−2 driven predominately by differences in the area and type of LCLU change. At the regional scale, these projected LCLU changes induce a net negative albedo decrease (−0.001) and a regional positive radiative forcing of 0.112 W m−2. This overall positive forcing (i.e., warming) is almost 4 times greater than that estimated for documented 1973–2000 LCLU albedo change published in a previous study using the same methods.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Land Change Science","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Taylor & Francis","publisherLocation":"Philadelphia, PA","doi":"10.1080/1747423X.2012.667453","usgsCitation":"Barnes, C., Roy, D.P., and Loveland, T., 2013, Projected surface radiative forcing due to 2000--2050 land-cover land-use albedo change over the eastern United States: Journal of Land Change Science, v. 8, no. 4, p. 369-382, https://doi.org/10.1080/1747423X.2012.667453.","productDescription":"14 p.","startPage":"369","endPage":"382","ipdsId":"IP-029007","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":474058,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1080/1747423x.2012.667453","text":"Publisher Index Page"},{"id":264752,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":264751,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1080/1747423X.2012.667453"}],"country":"United States","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ 172.5,18.9 ], [ 172.5,71.4 ], [ -66.9,71.4 ], [ -66.9,18.9 ], [ 172.5,18.9 ] ] ] } } ] }","volume":"8","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"50e492dbe4b0e8fec6cd8b73","contributors":{"authors":[{"text":"Barnes, Christopher A. 0000-0002-4608-4364","orcid":"https://orcid.org/0000-0002-4608-4364","contributorId":92793,"corporation":false,"usgs":true,"family":"Barnes","given":"Christopher A.","affiliations":[],"preferred":false,"id":470723,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Roy, David P.","contributorId":71083,"corporation":false,"usgs":true,"family":"Roy","given":"David","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":470722,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Loveland, Thomas R. 0000-0003-3114-6646 loveland@usgs.gov","orcid":"https://orcid.org/0000-0003-3114-6646","contributorId":3005,"corporation":false,"usgs":true,"family":"Loveland","given":"Thomas R.","email":"loveland@usgs.gov","affiliations":[{"id":223,"text":"Earth Resources Observation and Science (EROS) Center (Geography)","active":false,"usgs":true}],"preferred":false,"id":470721,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70041576,"text":"70041576 - 2013 - Global change effects on Bromus tectorum L. (Poaceae) at its high-elevation range margin","interactions":[],"lastModifiedDate":"2012-12-07T16:25:58","indexId":"70041576","displayToPublicDate":"2012-12-07T00:00:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1837,"text":"Global Change Biology","active":true,"publicationSubtype":{"id":10}},"title":"Global change effects on Bromus tectorum L. (Poaceae) at its high-elevation range margin","docAbstract":"Global change is likely to affect invasive species distribution, especially at range margins. In the eastern Sierra Nevada, California, USA, the invasive annual grass, Bromus tectorum, is patchily distributed and its impacts have been minimal compared with other areas of the Intermountain West. We used a series of in situ field manipulations to determine how B. tectorum might respond to changing climatic conditions and increased nitrogen deposition at the high-elevation edge of its invaded range. Over 3 years, we used snow fences to simulate changes in snowpack, irrigation to simulate increased frequency and magnitude of springtime precipitation, and added nitrogen (N) at three levels (0, 5, and 10 g m-2) to natural patches of B. tectorum growing under the two dominant shrubs, Artemisia tridentata and Purshia tridentata, and in intershrub spaces (INTR). We found that B. tectorum seedling density in April was lower following deeper snowpack possibly due to delayed emergence, yet there was no change in spikelet production or biomass accumulation at the time of harvest. Additional spring rain events increased B. tectorum biomass and spikelet production in INTR plots only. Plants were primarily limited by water in 2009, but colimited by N and water in 2011, possibly due to differences in antecedent moisture conditions at the time of treatments. The threshold at which N had an effect varied with magnitude of water additions. Frequency of rain events was more influential than magnitude in driving B. tectorum growth and fecundity responses. Our results suggest that predicted shifts from snow to rain could facilitate expansion of B. tectorum at high elevation depending on timing of rain events and level of N deposition. We found evidence for P-limitation at this site and an increase in P-availability with N additions, suggesting that stoichiometric relationships may also influence B. tectorum spread.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Global Change Biology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Wiley","publisherLocation":"Hoboken, NJ","doi":"10.1111/gcb.12032","usgsCitation":"Concilio, A.L., Loik, M., and Belnap, J., 2013, Global change effects on Bromus tectorum L. (Poaceae) at its high-elevation range margin: Global Change Biology, v. 19, no. 1, p. 161-172, https://doi.org/10.1111/gcb.12032.","productDescription":"12 p.","startPage":"161","endPage":"172","ipdsId":"IP-036997","costCenters":[{"id":568,"text":"Southwest Biological Science Center","active":true,"usgs":true}],"links":[{"id":263865,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":263864,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/gcb.12032"}],"country":"United States","state":"California","otherGeospatial":"Sierra Nevada","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -124.41,32.53 ], [ -124.41,42.01 ], [ -114.13,42.01 ], [ -114.13,32.53 ], [ -124.41,32.53 ] ] ] } } ] }","volume":"19","issue":"1","noUsgsAuthors":false,"publicationDate":"2012-10-29","publicationStatus":"PW","scienceBaseUri":"50c31028e4b0b57f2415d196","contributors":{"authors":[{"text":"Concilio, Amy L.","contributorId":28871,"corporation":false,"usgs":true,"family":"Concilio","given":"Amy","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":469928,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Loik, Michael E.","contributorId":101162,"corporation":false,"usgs":true,"family":"Loik","given":"Michael E.","affiliations":[],"preferred":false,"id":469929,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Belnap, Jayne 0000-0001-7471-2279 jayne_belnap@usgs.gov","orcid":"https://orcid.org/0000-0001-7471-2279","contributorId":1332,"corporation":false,"usgs":true,"family":"Belnap","given":"Jayne","email":"jayne_belnap@usgs.gov","affiliations":[{"id":568,"text":"Southwest Biological Science Center","active":true,"usgs":true}],"preferred":true,"id":469927,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70056383,"text":"70056383 - 2013 - Regional geophysical expression of a carbonatite terrane in the eastern Mojave Desert, California","interactions":[],"lastModifiedDate":"2023-06-22T15:05:12.405412","indexId":"70056383","displayToPublicDate":"2012-12-01T09:34:18","publicationYear":"2013","noYear":false,"publicationType":{"id":4,"text":"Book"},"publicationSubtype":{"id":12,"text":"Conference publication"},"title":"Regional geophysical expression of a carbonatite terrane in the eastern Mojave Desert, California","docAbstract":"A world-class, rare earth element carbonatite deposit is located near Mountain Pass, in the eastern Mojave Desert of California and is hosted by Proterozoic rocks that extend along the eastern margins of the Clark Mountain Range, Mescal Range, and Ivanpah Mountains in a north-northwest trending fault-bounded block. This Proterozoic block is generally composed of a complex of 1.7 - 1.6 Ga gneisses and schists that are intruded by ~1.4 Ga carbonatite and ultrapotassic mafic dikes. In the latter suite, common intrusive rock types include shonkinite, syenite, and alkali granites that are associated with carbonatite dikes. Regional geophysical data reveal that the carbonatite deposit itself occurs along the northeast edge of a prominent magnetic high with an amplitude of 200 nanoteslas, which appears to be related to the surrounding Proterozoic block. More than 340 gravity stations and 155 physical property samples were collected to augment existing geophysical data to determine the geophysical and geologic setting of the eastern Mojave Desert carbonatite terrane. Physical properties of representative rock types in the area show that 23 samples of carbonatite ore have an average saturated bulk density of 2,866 with a range of 2,440 to 3,192 kg/m3 and a magnetic susceptibility of 0.22 with a range of 0.03 to 0.61x 10-3 SI units, 17 samples of syenite have an average saturated bulk density of 2,670 with a range of 2,555 to 2,788 kg/m3 and a magnetic susceptibility of 3.50 with a range of 0.19 to 11.46 x 10-3 SI units, 19 samples of shonkinite dike have an average saturated bulk density of 2,800 with a range of 2,603 to 3,000 kg/m3 and a magnetic susceptibility of 0.71 with a range of 0.00 to 4.44 x 10-3 SI units, and 28 samples of Proterozoic gneiss have an average saturated bulk density of 2,734 with a range of 2,574 to 3,086 kg/m3 and a magnetic susceptibility of 1.23 with a range of 0.01 to 7.48 x 10-3 SI units. In general, carbonatites have distinctive gravity, magnetic, and radiometric signatures because these deposits are relatively dense, have primary magnetite, and are enriched in thorium or uranium. In this case, because the carbonatite rocks in this Proterozoic terrane are themselves essentially nonmagnetic, they are not the source of the magnetic high associated with the Clark Mountain and Mescal Ranges. Instead, we suggest that weakly to moderately magnetic syenite intrusions or other granitic or metamorphic rocks in the region are the source of the magnetic high. Gravity data indicate that basins within the eastern Mojave carbonatite terrane are complicated. For example, a gravity high in the northern part of Ivanapah Valley suggest that the basin is underlain by shallow basement rocks, whereas the southern part of Ivanpah Valley extends to a depth of about 2 km. Combined gravity, magnetic, and geologic studies improve the current geophysical framework and structural interpretation of the eastern Mojave Desert carbonatite terrane.
","conferenceTitle":"American Geophysical Union 45th Annual Fall Meeting","conferenceDate":"December 12, 2012","conferenceLocation":"San Francisco, CA","language":"English","publisher":"American Geophysical Union","publisherLocation":"Washington, D.C.","usgsCitation":"Ponce, D.A., Denton, K.M., and Miller, D., 2013, Regional geophysical expression of a carbonatite terrane in the eastern Mojave Desert, California.","ipdsId":"IP-051611","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":289415,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California, Nevada","otherGeospatial":"Mojave Desert","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -117.9789,34.1607 ], [ -117.9789,37.5219 ], [ -114.7254,37.5219 ], [ -114.7254,34.1607 ], [ -117.9789,34.1607 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53b67b7fe4b014fc094d5471","contributors":{"authors":[{"text":"Ponce, David A. 0000-0003-4785-7354 ponce@usgs.gov","orcid":"https://orcid.org/0000-0003-4785-7354","contributorId":1049,"corporation":false,"usgs":true,"family":"Ponce","given":"David","email":"ponce@usgs.gov","middleInitial":"A.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true},{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"preferred":true,"id":486548,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Denton, Kevin M. 0000-0001-9604-4021 kmdenton@usgs.gov","orcid":"https://orcid.org/0000-0001-9604-4021","contributorId":5303,"corporation":false,"usgs":true,"family":"Denton","given":"Kevin","email":"kmdenton@usgs.gov","middleInitial":"M.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":486550,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Miller, David M. 0000-0003-3711-0441 dmiller@usgs.gov","orcid":"https://orcid.org/0000-0003-3711-0441","contributorId":1707,"corporation":false,"usgs":true,"family":"Miller","given":"David M.","email":"dmiller@usgs.gov","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":false,"id":486549,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70041263,"text":"70041263 - 2013 - Using simulated maps to interpret the geochemistry, formation and quality of the Blue Gem Coal Bed, Kentucky, USA","interactions":[],"lastModifiedDate":"2013-04-20T19:30:39","indexId":"70041263","displayToPublicDate":"2012-12-01T00:00:00","publicationYear":"2013","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":"Using simulated maps to interpret the geochemistry, formation and quality of the Blue Gem Coal Bed, Kentucky, USA","docAbstract":"This study presents geostatistical simulations of coal-quality parameters, major oxides and trace metals for an area covering roughly 812 km2 of the Blue Gem coal bed in southeastern Kentucky, USA. The Blue Gem, characterized by low ash yield and low sulfur content, is an important economic resource. Past studies have characterized the Blue Gem's geochemistry, palynology and petrography and inferred a depositional setting of a planar peat deposit that transitioned to slightly domed later in its development. These studies have focused primarily on vertical geochemical trends within the coal bed. Simulated maps of chemical elements derived from 45 measured sample locations across the study area provide an opportunity to observe changes in the horizontal direction within the coal bed. As the Blue Gem coal bed shows significant vertical chemical trends, care was taken in this study to try to select samples from a single, middle portion of the coal. By revealing spatial distribution patterns of elements across the middle of the bed, associations between different components of the coal can be seen. The maps therefore help to provide a picture of the coal-forming peat bog at an instant in geologic time and allow interpretation of a depositional setting in the horizontal direction. Results from this middle portion of the coal suggest an association of SiO2 with both K2O and TiO2 in different parts of the study area. Further, a pocket in the southeast of the study area shows elevated concentrations of elements attributable to observed carbonate-phase minerals (MgO, CaO, Ba and Sr) as well as elements commonly associated with sulfide-phase minerals (Cu, Mo and Ni). Areas of relatively high ash yield are observed in the north and south of the mapped area, in contrast to the low ash yields seen towards the east. Additionally, we present joint probability maps where multiple coal-quality parameters are plotted simultaneously on one figure. This application allows researchers to investigate associations of more than two components in a straight-forward manner useful in guiding resource exploration.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"International Journal of Coal Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","publisherLocation":"Amsterdam, Netherlands","doi":"10.1016/j.coal.2012.10.010","usgsCitation":"Geboy, N., Olea, R., Engle, M.A., and Martin-Fernandez, J.A., 2013, Using simulated maps to interpret the geochemistry, formation and quality of the Blue Gem Coal Bed, Kentucky, USA: International Journal of Coal Geology, v. 112, 10 p., https://doi.org/10.1016/j.coal.2012.10.010.","productDescription":"10 p.","ipdsId":"IP-039031","costCenters":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"links":[{"id":263545,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":263544,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.coal.2012.10.010"}],"country":"United States","state":"Kentucky","otherGeospatial":"Blue Gem","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -89.5693,36.4972 ], [ -89.5693,39.1475 ], [ -81.965,39.1475 ], [ -81.965,36.4972 ], [ -89.5693,36.4972 ] ] ] } } ] }","volume":"112","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"50e56508e4b0a4aa5bb04b56","contributors":{"authors":[{"text":"Geboy, Nicholas J. ngeboy@usgs.gov","contributorId":3860,"corporation":false,"usgs":true,"family":"Geboy","given":"Nicholas J.","email":"ngeboy@usgs.gov","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":469477,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Olea, Ricardo A. 0000-0003-4308-0808","orcid":"https://orcid.org/0000-0003-4308-0808","contributorId":47873,"corporation":false,"usgs":true,"family":"Olea","given":"Ricardo A.","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":false,"id":469478,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Engle, Mark A. 0000-0001-5258-7374 engle@usgs.gov","orcid":"https://orcid.org/0000-0001-5258-7374","contributorId":584,"corporation":false,"usgs":true,"family":"Engle","given":"Mark","email":"engle@usgs.gov","middleInitial":"A.","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":469476,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Martin-Fernandez, Jose Antonio","contributorId":83002,"corporation":false,"usgs":true,"family":"Martin-Fernandez","given":"Jose","email":"","middleInitial":"Antonio","affiliations":[],"preferred":false,"id":469479,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70040469,"text":"70040469 - 2013 - A culture-based survey of fungi in soil from bat hibernacula in the eastern United States and its implications for detection of Geomyces destructans, the causal agent of bat white-nose syndrome","interactions":[],"lastModifiedDate":"2018-01-24T13:41:03","indexId":"70040469","displayToPublicDate":"2012-10-24T00:00:00","publicationYear":"2013","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2798,"text":"Mycologia","active":true,"publicationSubtype":{"id":10}},"title":"A culture-based survey of fungi in soil from bat hibernacula in the eastern United States and its implications for detection of Geomyces destructans, the causal agent of bat white-nose syndrome","docAbstract":"The recent emergence of white-nose syndrome (WNS), a fungal disease causing unprecedented mortality among hibernating bats of eastern North America, has revealed a knowledge gap regarding fungal communities associated with bats and their hibernacula. We used culture-based techniques to investigate the diversity of fungi in soil samples collected from 24 bat hibernacula in the eastern United States. Ribosomal RNA regions (internal transcribed spacer and partial intergenic spacer) were sequenced to preliminarily characterize isolates. Geomyces species were one of the most abundant and diverse groups cultured, representing approximately 33% of all isolates. Geomyces destructans was isolated from soil samples from three hibernacula in states where WNS is known to occur, and many of the other cultured Geomyces isolates likely represent undescribed taxa. Further characterization of the diversity of fungi that occur in hibernacula will both facilitate an improved understanding of the ecology of G. destructans within this complex fungal community and provide an opportunity to identify characteristics that differentiate G. destructans from non-pathogenic relatives.
","language":"English","publisher":"Mycological Society of America","doi":"10.3852/12-207","usgsCitation":"Lorch, J.M., Lindner, D.L., Gargas, A., Muller, L.K., Minnis, A.M., and Blehert, D., 2013, A culture-based survey of fungi in soil from bat hibernacula in the eastern United States and its implications for detection of Geomyces destructans, the causal agent of bat white-nose syndrome: Mycologia, v. 105, no. 2, p. 237-252, https://doi.org/10.3852/12-207.","productDescription":"16 p.","startPage":"237","endPage":"252","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":456,"text":"National Wildlife Health Center","active":true,"usgs":true}],"links":[{"id":262781,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":262777,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.3852/12-207","linkFileType":{"id":5,"text":"html"}}],"country":"United 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quantifying attributes of the natural flow regime. We used predictive models to quantify deviation from expected natural streamflow variability for streams in the eastern USA. Sites with >25% change in mean daily streamflow variability compared with what would be expected in a minimally disturbed environment were defined as having altered streamflow variability, based on the 10th and 90th percentiles of the distribution of streamflow variability at 1279 hydrological reference sites. We also used predictive models to assess fish assemblage condition and native species loss based on the proportion of expected native fish species that were observed. Of the 97 sites, 49 (50.5%) were classified as altered with reduced streamflow variability, whereas no sites had increased streamflow variability. Reduced streamflow variability was related to a 35% loss in native fish species, on average, and a >50% loss of species with a preference for riffle habitats. Conditional probability analysis indicated that the probability of fish assemblage impairment increased as the severity of altered streamflow variability increased. Reservoir storage capacity and wastewater discharges were important predictors of reduced streamflow variability as revealed by random forest analysis. Management and conservation of streams will require careful consideration of natural streamflow variation and potential factors contributing to altered streamflow within the entire watershed to limit the loss of critical stream habitats and fish species uniquely adapted to live in those habitats.
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\"}}]}\n","volume":"28","issue":"9","publishingServiceCenter":{"id":9,"text":"Reston PSC"},"noUsgsAuthors":false,"publicationDate":"2011-05-20","publicationStatus":"PW","scienceBaseUri":"58b548c4e4b01ccd54fddfde","contributors":{"authors":[{"text":"Meador, Michael R. mrmeador@usgs.gov","contributorId":615,"corporation":false,"usgs":true,"family":"Meador","given":"Michael R.","email":"mrmeador@usgs.gov","affiliations":[{"id":451,"text":"National Water Quality Assessment Program","active":true,"usgs":true}],"preferred":true,"id":673386,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Carlisle, Daren M. 0000-0002-7367-348X dcarlisle@usgs.gov","orcid":"https://orcid.org/0000-0002-7367-348X","contributorId":513,"corporation":false,"usgs":true,"family":"Carlisle","given":"Daren","email":"dcarlisle@usgs.gov","middleInitial":"M.","affiliations":[{"id":27111,"text":"National Water Quality Program","active":true,"usgs":true},{"id":503,"text":"Office of Water Quality","active":true,"usgs":true},{"id":451,"text":"National Water Quality Assessment Program","active":true,"usgs":true},{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":353,"text":"Kansas Water Science Center","active":false,"usgs":true}],"preferred":true,"id":673385,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70179705,"text":"70179705 - 2012 - Assessment of salinity intrusion in the James and Chickahominy Rivers as a result of simulated sea-level rise in Chesapeake Bay, East Coast, USA","interactions":[],"lastModifiedDate":"2017-01-13T09:12:03","indexId":"70179705","displayToPublicDate":"2016-12-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2258,"text":"Journal of Environmental Management","active":true,"publicationSubtype":{"id":10}},"title":"Assessment of salinity intrusion in the James and Chickahominy Rivers as a result of simulated sea-level rise in Chesapeake Bay, East Coast, USA","docAbstract":"Global sea level is rising, and the relative rate in the Chesapeake Bay region of the East Coast of the United States is greater than the worldwide rate. Sea-level rise can cause saline water to migrate upstream in estuaries and rivers, threatening freshwater habitat and drinking-water supplies. The effects of future sea-level rise on two tributaries of Chesapeake Bay, the James and Chickahominy (CHK) Rivers, were evaluated in order to quantify the salinity change with respect to the magnitude of sea-level rise. Such changes are critical to: 1) local floral and faunal habitats that have limited tolerance ranges to salinity; and 2) a drinking-water supply for the City of Newport News, Virginia. By using the three-dimensional Hydrodynamic-Eutrophication Model (HEM-3D), sea-level rise scenarios of 30, 50, and 100 cm, based on the U.S. Climate Change Science Program for the mid-Atlantic region for the 21st century, were evaluated. The model results indicate that salinity increases in the entire river as sea level rises and that the salinity increase in a dry year is greater than that in a typical year. In the James River, the salinity increase in the middle-to-upper river (from 25 to 50 km upstream of the mouth) is larger than that in the lower and upper parts of the river. The maximum mean salinity increase would be 2 and 4 ppt for a sea-level rise of 50 and 100 cm, respectively. The upstream movement of the 10 ppt isohaline is much larger than the 5 and 20 ppt isohalines. The volume of water with salinity between 10 and 20 ppt would increase greatly if sea level rises 100 cm. In the CHK River, with a sea-level rise of 100 cm, the mean salinity at the drinking-water intake 34 km upstream of the mouth would be about 3 ppt in a typical year and greater than 5 ppt in a dry year, both far in excess of the U.S. Environmental Protection Agency's secondary standard for total dissolved solids for drinking water. At the drinking-water intake, the number of days of salinity greater than 0.1 ppt increases with increasing sea-level rise; during a dry year, 0.1 ppt would be exceeded for more than 100 days with as small a rise as 30 cm.
","language":"English","publisher":"Elsevier","doi":"10.1016/j.jenvman.2012.06.036","usgsCitation":"Rice, K.C., Hong, B., and Jian Shen, 2012, Assessment of salinity intrusion in the James and Chickahominy Rivers as a result of simulated sea-level rise in Chesapeake Bay, East Coast, USA: Journal of Environmental Management, v. 111, p. 61-69, https://doi.org/10.1016/j.jenvman.2012.06.036.","productDescription":"9 p.","startPage":"61","endPage":"69","ipdsId":"IP-023181","costCenters":[{"id":614,"text":"Virginia Water Science Center","active":true,"usgs":true}],"links":[{"id":333128,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","city":"Newport News","otherGeospatial":"Chesepeake Bay, Chickahominy River, James River","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -77.794189453125,\n 36.76529191711624\n ],\n [\n -77.794189453125,\n 39.74943369178247\n ],\n [\n -75.662841796875,\n 39.74943369178247\n ],\n [\n -75.662841796875,\n 36.76529191711624\n ],\n [\n -77.794189453125,\n 36.76529191711624\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"111","publishingServiceCenter":{"id":8,"text":"Raleigh PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5878a492e4b04df303d95822","contributors":{"authors":[{"text":"Rice, Karen C. 0000-0002-9356-5443 kcrice@usgs.gov","orcid":"https://orcid.org/0000-0002-9356-5443","contributorId":178269,"corporation":false,"usgs":true,"family":"Rice","given":"Karen","email":"kcrice@usgs.gov","middleInitial":"C.","affiliations":[{"id":37280,"text":"Virginia and West Virginia Water Science Center ","active":true,"usgs":true}],"preferred":true,"id":658356,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hong, Bo","contributorId":178276,"corporation":false,"usgs":false,"family":"Hong","given":"Bo","email":"","affiliations":[],"preferred":false,"id":658357,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Jian Shen","contributorId":178277,"corporation":false,"usgs":false,"family":"Jian Shen","affiliations":[],"preferred":false,"id":658358,"contributorType":{"id":1,"text":"Authors"},"rank":12}]}} ,{"id":70173719,"text":"70173719 - 2012 - Rock fall dynamics and deposition: an integrated analysis of the 2009 Ahwiyah Point rock fall, Yosemite National Park, USA.","interactions":[],"lastModifiedDate":"2016-06-08T11:55:02","indexId":"70173719","displayToPublicDate":"2015-08-25T17:15:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1425,"text":"Earth Surface Processes and Landforms","active":true,"publicationSubtype":{"id":10}},"title":"Rock fall dynamics and deposition: an integrated analysis of the 2009 Ahwiyah Point rock fall, Yosemite National Park, USA.","docAbstract":"We analyzed a combination of airborne and terrestrial LiDAR, high-resolution photography, seismic, and acoustic data in order to gain insights into the initiation, dynamics, and talus deposition of a complex rock fall. A large (46 700 m3) rock fall originated from near Ahwiyah Point in eastern Yosemite Valley and fell a total of 730 m to the valley floor on 28 March 2009. Analyses of remote sensing, seismic, and acoustic data were integrated to reconstruct the rock fall, which consisted of (1) the triggering of a 25 400 m3 rock block in an area of intersecting and sometimes highly weathered joint planes, (2) the sliding and subsequent ballistic trajectory of the block from a steeply dipping ledge, (3) dislodging of additional rock from the cliff surface from beneath the rock fall source area, (4) a mid-cliff ledge impact that detached a volume of rock nearly equivalent in volume to the initial block, (5) sliding of the deteriorating rock mass down the remainder of the cliff, and (6) final impact at the base of the cliff that remobilized the existing talus downward and outward and produced an airblast that knocked down hundreds of trees. The depositional geomorphology indicates that the porosity of the fresh talus is significantly lower than that expected for typical blocky talus slopes, likely because the rock debris from this event was pulverized into smaller, more poorly sorted fragments and densified via dynamic compaction when compared to less energetic, fragmental-type rock falls. These results suggest that accumulation of individual rock-fall boulders tends to steepen talus slopes, whereas large, energetic rock falls tend to flatten them. Detachment and impact signals were recorded by seismic and acoustic instruments and highlight the potential use of this type of instrumentation for generalized rock fall monitoring, while LiDAR and photography data were able to quantify the cliff geometry, rock fall volume, source and impact locations, and geomorphological changes to the cliff and talus.
","language":"English","publisher":"Earth Surface Processes and Landforms","doi":"10.1002/esp.3206","usgsCitation":"Valerie L. Zimmer, Collins, B.D., Greg M. Stock, and Nicholas Sitar, 2012, Rock fall dynamics and deposition: an integrated analysis of the 2009 Ahwiyah Point rock fall, Yosemite National Park, USA.: Earth Surface Processes and Landforms, v. 37, no. 6, p. 680-691, https://doi.org/10.1002/esp.3206.","productDescription":"11 p.","startPage":"680","endPage":"691","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-033985","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":323271,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"Yosemite National Park","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -119.66308593749999,\n 37.496652341233364\n ],\n [\n -119.57244873046874,\n 37.49556277942662\n ],\n [\n -119.57382202148439,\n 37.53368798315969\n ],\n [\n -119.43923950195312,\n 37.536954951447285\n ],\n [\n -119.388427734375,\n 37.554376365024865\n ],\n [\n -119.36920166015624,\n 37.63054716639914\n ],\n [\n -119.32388305664064,\n 37.63380988687157\n ],\n [\n -119.25659179687499,\n 37.72836644908416\n ],\n [\n -119.26895141601562,\n 37.74248523826606\n ],\n [\n -119.20166015625,\n 37.80001858607365\n ],\n [\n -119.20028686523438,\n 37.89002800137122\n ],\n [\n -119.23599243164062,\n 37.91061711049342\n ],\n [\n -119.31289672851562,\n 37.9593578107923\n ],\n [\n -119.32113647460936,\n 37.97451499202459\n ],\n [\n -119.31015014648438,\n 38.04484662140698\n ],\n [\n -119.34722900390625,\n 38.08593231319764\n ],\n [\n -119.42825317382811,\n 38.11943249695316\n ],\n [\n -119.44198608398438,\n 38.098901948321256\n ],\n [\n -119.46533203125,\n 38.098901948321256\n ],\n [\n -119.47219848632812,\n 38.13023573104302\n ],\n [\n -119.50241088867188,\n 38.158316657442\n ],\n [\n -119.50790405273436,\n 38.135636748588574\n ],\n [\n -119.57382202148439,\n 38.161556068786886\n ],\n [\n -119.58755493164061,\n 38.187466178077905\n ],\n [\n -119.62326049804688,\n 38.1680344597114\n ],\n [\n -119.62600708007812,\n 38.15291731872143\n ],\n [\n -119.7015380859375,\n 38.13239618602294\n ],\n [\n -119.73724365234375,\n 38.09998264736481\n ],\n [\n -119.81414794921875,\n 38.09674050228651\n ],\n [\n -119.83886718750001,\n 38.089174937729794\n ],\n [\n -119.87457275390625,\n 38.05566088242076\n ],\n [\n -119.88693237304688,\n 37.98642201062662\n ],\n [\n -119.88555908203126,\n 37.89327929625019\n ],\n [\n -119.82650756835938,\n 37.89219554724437\n ],\n [\n -119.827880859375,\n 37.83798775896512\n ],\n [\n -119.871826171875,\n 37.81195385919268\n ],\n [\n -119.87594604492188,\n 37.791337175930686\n ],\n [\n -119.85260009765624,\n 37.738141282210385\n ],\n [\n -119.7784423828125,\n 37.73922729512254\n ],\n [\n -119.77981567382812,\n 37.7109857819458\n ],\n [\n -119.7674560546875,\n 37.68708070686609\n ],\n [\n -119.81277465820312,\n 37.67947293019486\n ],\n [\n -119.81277465820312,\n 37.665342132088284\n ],\n [\n -119.761962890625,\n 37.669690356567855\n ],\n [\n -119.71389770507814,\n 37.65338320128765\n ],\n [\n -119.72625732421874,\n 37.642509774448754\n ],\n [\n -119.72351074218749,\n 37.62945956107554\n ],\n [\n -119.69604492187499,\n 37.62837193983584\n ],\n [\n -119.69467163085936,\n 37.58267747761301\n ],\n [\n -119.70428466796875,\n 37.579412513438385\n ],\n [\n -119.70016479492188,\n 37.54893261064111\n ],\n [\n -119.66308593749999,\n 37.496652341233364\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"37","issue":"6","publishingServiceCenter":{"id":14,"text":"Menlo Park PSC"},"noUsgsAuthors":false,"publicationDate":"2012-02-08","publicationStatus":"PW","scienceBaseUri":"57594231e4b04f417c256986","contributors":{"authors":[{"text":"Valerie L. Zimmer","contributorId":171506,"corporation":false,"usgs":false,"family":"Valerie L. Zimmer","affiliations":[{"id":590,"text":"U.S. Army Corps of Engineers","active":false,"usgs":false}],"preferred":false,"id":637774,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Collins, Brian D. 0000-0003-4881-5359 bcollins@usgs.gov","orcid":"https://orcid.org/0000-0003-4881-5359","contributorId":149278,"corporation":false,"usgs":true,"family":"Collins","given":"Brian","email":"bcollins@usgs.gov","middleInitial":"D.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true},{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true}],"preferred":true,"id":637771,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Greg M. Stock","contributorId":171504,"corporation":false,"usgs":false,"family":"Greg M. Stock","affiliations":[{"id":590,"text":"U.S. Army Corps of Engineers","active":false,"usgs":false}],"preferred":false,"id":637772,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Nicholas Sitar","contributorId":171505,"corporation":false,"usgs":false,"family":"Nicholas Sitar","affiliations":[{"id":590,"text":"U.S. Army Corps of Engineers","active":false,"usgs":false}],"preferred":false,"id":637773,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70041710,"text":"70041710 - 2012 - Report on progress at the Center for Engineering Strong Motion Data (CESMD)","interactions":[],"lastModifiedDate":"2015-10-29T11:33:00","indexId":"70041710","displayToPublicDate":"2015-06-08T04:15:00","publicationYear":"2012","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Report on progress at the Center for Engineering Strong Motion Data (CESMD)","docAbstract":"Strong-motion data of engineering and scientific importance from the United States and other seismically active countries are served through the Center for Engineering Strong Motion Data (CESMD) at www.strongmotioncenter.org. Recently, the CESMD staff, with cooperation from colleagues at international strong-motion seismic networks, has disseminated strong-motion data from significant earthquakes that occurred in Italy, Haiti, Mexico, New Zealand, Chile, Japan, Turkey, and the United States.
\nThe CESMD now automatically posts strong-motion data from an increasing number of seismic stations in California within a few minutes following an earthquake as an Internet Quick Report (IQR). As appropriate, IQRs are updated by more comprehensive Internet Data Reports that include reviewed versions of the data and maps showing, for example, the finite fault rupture along with the distribution of recording stations. Automated processing of strong-motion data will be extended to post the strong-motion records of the regional seismic networks of the Advanced National Seismic System (ANSS) outside California.
\nTransfer of the operational and maintenance responsibilities for the Consortium of Organizations for Strong Motion Observation Systems (COSMOS) Virtual Data Center (VDC) from the University of California at Santa Barbara to the CESMD is nearing completion. The VDC Tagged Format (VTF) file format has been adopted by the CESMD as the standard for converting strong motion data to facilitate the process of uploading data into the VDC database.
\nThe CESMD now provides strong-motion records from lower magnitude (<M3.5) and smaller amplitude (<0.5%g) records for use in developing ground motion prediction equations in areas with less frequent earthquakes, such as the Central and Eastern US.
","largerWorkTitle":"The 15th World Conference on Earthquake Engineering","conferenceTitle":"The 15th World Conference on Earthquake Engineering","conferenceDate":"September 24-28, 2012","conferenceLocation":"Lisbon, Portugal","language":"English","usgsCitation":"Haddadi, H., Shakal, A., Huang, M., Parrish, J., Stephens, C., Savage, W.U., and Leith, W.S., 2012, Report on progress at the Center for Engineering Strong Motion Data (CESMD), in The 15th World Conference on Earthquake Engineering, Lisbon, Portugal, September 24-28, 2012, 7 p.","productDescription":"7 p.","numberOfPages":"7","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-037849","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"links":[{"id":310759,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"UNITED STATES","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"56334341e4b048076347eee0","contributors":{"authors":[{"text":"Haddadi, H.","contributorId":12673,"corporation":false,"usgs":false,"family":"Haddadi","given":"H.","affiliations":[{"id":12640,"text":"California Geological Survey","active":true,"usgs":false}],"preferred":false,"id":578686,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Shakal, A.","contributorId":20934,"corporation":false,"usgs":false,"family":"Shakal","given":"A.","email":"","affiliations":[{"id":12640,"text":"California Geological Survey","active":true,"usgs":false}],"preferred":false,"id":578687,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Huang, M.","contributorId":70903,"corporation":false,"usgs":true,"family":"Huang","given":"M.","affiliations":[],"preferred":false,"id":578688,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Parrish, J.","contributorId":149527,"corporation":false,"usgs":false,"family":"Parrish","given":"J.","affiliations":[{"id":12640,"text":"California Geological Survey","active":true,"usgs":false}],"preferred":false,"id":578689,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Stephens, C.","contributorId":44169,"corporation":false,"usgs":true,"family":"Stephens","given":"C.","email":"","affiliations":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"preferred":false,"id":578690,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Savage, William U. wusavage@usgs.gov","contributorId":2448,"corporation":false,"usgs":true,"family":"Savage","given":"William","email":"wusavage@usgs.gov","middleInitial":"U.","affiliations":[],"preferred":true,"id":578691,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Leith, William S. 0000-0002-3463-3119 wleith@usgs.gov","orcid":"https://orcid.org/0000-0002-3463-3119","contributorId":2248,"corporation":false,"usgs":true,"family":"Leith","given":"William","email":"wleith@usgs.gov","middleInitial":"S.","affiliations":[{"id":234,"text":"Earthquake Hazards Program","active":true,"usgs":true},{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"preferred":true,"id":578692,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":70045354,"text":"70045354 - 2012 - Genesis of an oak-fire science consortium","interactions":[],"lastModifiedDate":"2017-03-09T10:20:47","indexId":"70045354","displayToPublicDate":"2014-01-01T14:47:00","publicationYear":"2012","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Genesis of an oak-fire science consortium","docAbstract":"With respect to fire management and practices, one of the most overlooked \nregions lies in the middle of the country. In this region there is a critical need for both recognition of fire’s importance and sharing of fire information and expertise. Recently we proposed and were awarded funding by the Joint Fire Science Program to initiate the planning phase for a regional fire consortium. The purpose of the consortium will be to promote the dissemination of fire information across the interior United States and \nto identify fire information needs of oak-dominated communities such as woodlands, forests, savannas, and barrens. Geographically, the consortium region will cover: 1) the Interior Lowland Plateau Ecoregion in Illinois, Indiana, central Kentucky and Tennessee; 2) the Missouri, Arkansas, and Oklahoma Ozarks; 3) the Ouachita Mountains of Arkansas and Oklahoma; and 4) the Cross Timbers Region in Texas, Oklahoma, and Kansas. This region coincides with the southwestern half of the Central Hardwoods Forest \nRegion. The tasks of this consortium will be to disseminate fire information, connect fire professionals, and efficiently address fire issues within our region. If supported, the success and the future direction of the consortium will be driven by end-users, their input, and involvement.","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Proceedings of the 4th Fire in Eastern Oak Forest Conference, Gen. Tech. Rep. NRS-P-102","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"4th Fire in Eastern Oak Forests Conference","conferenceDate":"May 17-19, 2011","conferenceLocation":"Springfield, MO","language":"English","publisher":"U.S. Department of Agriculture, Forest Service, Northern Research Station","publisherLocation":"Newtown Square, PA","usgsCitation":"Grabner, K., Stambaugh, M.C., Guyette, R., Dey, D.C., and Willson, G., 2012, Genesis of an oak-fire science consortium, in Proceedings of the 4th Fire in Eastern Oak Forest Conference, Gen. Tech. Rep. NRS-P-102, Springfield, MO, May 17-19, 2011, p. 207-211.","productDescription":"5 p.","startPage":"207","endPage":"211","ipdsId":"IP-029988","costCenters":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"links":[{"id":337156,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"UNITED STATES","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58c277dde4b014cc3a3e76df","contributors":{"editors":[{"text":"Dey, D. C.","contributorId":187751,"corporation":false,"usgs":false,"family":"Dey","given":"D.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":681561,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Stambaugh, M. C.","contributorId":187750,"corporation":false,"usgs":false,"family":"Stambaugh","given":"M.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":681562,"contributorType":{"id":2,"text":"Editors"},"rank":2},{"text":"Clark, S.L.","contributorId":88113,"corporation":false,"usgs":true,"family":"Clark","given":"S.L.","email":"","affiliations":[],"preferred":false,"id":681563,"contributorType":{"id":2,"text":"Editors"},"rank":3},{"text":"Schweitzer, C. J.","contributorId":187752,"corporation":false,"usgs":false,"family":"Schweitzer","given":"C.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":681564,"contributorType":{"id":2,"text":"Editors"},"rank":4}],"authors":[{"text":"Grabner, K.W.","contributorId":51237,"corporation":false,"usgs":true,"family":"Grabner","given":"K.W.","affiliations":[],"preferred":false,"id":681556,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stambaugh, M. C.","contributorId":187750,"corporation":false,"usgs":false,"family":"Stambaugh","given":"M.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":681557,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Guyette, R.P.","contributorId":10746,"corporation":false,"usgs":true,"family":"Guyette","given":"R.P.","email":"","affiliations":[],"preferred":false,"id":681558,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Dey, D. C.","contributorId":187751,"corporation":false,"usgs":false,"family":"Dey","given":"D.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":681559,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Willson, G.D.","contributorId":99497,"corporation":false,"usgs":true,"family":"Willson","given":"G.D.","email":"","affiliations":[],"preferred":false,"id":681560,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70045164,"text":"70045164 - 2012 - The 2011 Virginia earthquake: what are scientists learning?","interactions":[],"lastModifiedDate":"2013-08-05T10:23:39","indexId":"70045164","displayToPublicDate":"2013-08-05T10:16:19","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1578,"text":"Eos, Transactions, American Geophysical Union","onlineIssn":"2324-9250","printIssn":"0096-394","active":true,"publicationSubtype":{"id":10}},"title":"The 2011 Virginia earthquake: what are scientists learning?","docAbstract":"Nearly 1 year ago, on 23 August, tens of millions of people in the eastern United States and southeastern Canada were startled in the middle of their workday (1:51 P.M. local time) by the sudden onset of moderate to strong ground shaking from a rare magnitude (M) 5.8 earthquake in central Virginia. Treating the shaking as if it were a fire drill, millions of workers in Washington, D. C., New York City, and other eastern cities hurriedly exited their buildings, exposing themselves to potentially greater danger from falling bricks and glass; “drop, cover, and hold” would have been a better response. Fortunately, the strong shaking stopped after about 5 seconds and did not cause widespread severe damage or serious injuries.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Eos, Transactions American Geophysical Union","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"American Geophysical Union","doi":"10.1029/2012EO330001","usgsCitation":"Horton, J., and Williams, R., 2012, The 2011 Virginia earthquake: what are scientists learning?: Eos, Transactions, American Geophysical Union, v. 93, no. 33, p. 317-318, https://doi.org/10.1029/2012EO330001.","productDescription":"2 p.","startPage":"317","endPage":"318","ipdsId":"IP-039193","costCenters":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"links":[{"id":474087,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2012eo330001","text":"Publisher Index Page"},{"id":276002,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":276001,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2012EO330001"}],"country":"United States","state":"Virginia","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -83.6754,36.5408 ], [ -83.6754,39.466 ], [ -75.2422,39.466 ], [ -75.2422,36.5408 ], [ -83.6754,36.5408 ] ] ] } } ] }","volume":"93","issue":"33","noUsgsAuthors":false,"publicationDate":"2012-08-14","publicationStatus":"PW","scienceBaseUri":"5200bb5ae4b009d47a4c2345","contributors":{"authors":[{"text":"Horton, J. Wright Jr. 0000-0001-6756-6365 whorton@usgs.gov","orcid":"https://orcid.org/0000-0001-6756-6365","contributorId":423,"corporation":false,"usgs":true,"family":"Horton","given":"J. Wright","suffix":"Jr.","email":"whorton@usgs.gov","affiliations":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"preferred":false,"id":476983,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Williams, Robert A. rawilliams@usgs.gov","contributorId":1357,"corporation":false,"usgs":true,"family":"Williams","given":"Robert A.","email":"rawilliams@usgs.gov","affiliations":[{"id":301,"text":"Geologic Hazards Team","active":false,"usgs":true}],"preferred":false,"id":476984,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70118346,"text":"70118346 - 2012 - Peralkaline- and calc-alkaline-hosted volcanogenic massive sulfide deposits of the Bonnifield District, East-Central Alaska","interactions":[],"lastModifiedDate":"2018-10-23T12:07:12","indexId":"70118346","displayToPublicDate":"2013-07-28T14:28:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1472,"text":"Economic Geology","active":true,"publicationSubtype":{"id":10}},"title":"Peralkaline- and calc-alkaline-hosted volcanogenic massive sulfide deposits of the Bonnifield District, East-Central Alaska","docAbstract":"Volcanogenic massive sulfide (VMS) Zn-Pb-Cu-Ag-Au deposits of the Bonnifield mining district formed during Late Devonian-Early Mississippian magmatism along the western edge of Laurentia. The largest deposits, Dry Creek and WTF, have a combined resource of 5.7 million tonnes at 10% Zn, 4% Pb, 0.3% Cu, 300 grams per tonne (g/t) Ag, and 1.6 g/t Au. These polymetallic deposits are hosted in high field strength element (HFSE)- and rare-earth element (REE)-rich peralkaline (pantelleritic) metarhyolite, and interlayered pyritic argillite and mudstone of the Mystic Creek Member of the Totatlanika Schist Formation. Mystic Creek metarhyolite and alkali basalt (Chute Creek Member) constitute a bimodal pair that formed in an extensional environment. A synvolcanic peralkaline quartz porphyry containing veins of fluorite, sphalerite, pyrite, and quartz intrudes the central footwall at Dry Creek. The Anderson Mountain deposit, located ~32 km to the southwest, occurs within calc-alkaline felsic to intermediate-composition metavolcanic rocks and associated graphitic argillite of the Wood River assemblage. Felsic metavolcanic rocks there have only slightly elevated HFSEs and REEs. The association of abundant graphitic and siliceous argillite with the felsic volcanic rocks together with low Cu contents in the Bonnifield deposits suggests classification as a siliciclastic-felsic type of VMS deposit.
Bonnifield massive sulfides and host rocks were metamorphosed and deformed under greenschist-facies conditions in the Mesozoic. Primary depositional textures, generally uncommon, consist of framboids, framboidal aggregates, and spongy masses of pyrite. Sphalerite, the predominant base metal sulfide, encloses early pyrite framboids. Galena and chalcopyrite accompanied early pyrite formation but primarily formed late in the paragenetic sequence. Silver-rich tetrahedrite is a minor late phase at the Dry Creek deposit. Gold and Ag are present in low to moderate amounts in pyrite from all of the deposits; electrum inclusions occur in Dry Creek sphalerite. Contents and ratios of trace elements in graphitic argillite that serve as proxies for the redox state of the bottom waters in the basin indicate that Dry Creek mineralization took place in suboxic to periodically anoxic bottom waters. Trace element data show higher contents of Tl-Mn-As in pyrite from the Anderson Mountain deposit compared to the Dry Creek or WTF deposits and thus suggest that Anderson Mountain may have formed at lower temperatures or under slightly more oxidizing conditions.
No exact modern analogue for the tectonic setting of the Bonnifield VMS deposits is known, although the back-arc regions of the Okinawa Trough and Woodlark Basin satisfy the requirement for a submarine, extensional setting adjacent to a continental margin. Limited occurrences of peralkaline volcanic rocks occur in these two potential analogues, but the peralkalinity of those rocks is much less than that of the Mystic Creek Member metarhyolites in the Bonnifield district. The highly elevated trace element (e.g., Zr, Nb) contents of Mystic Creek metarhyolites suggest that a better analogue may be a submarine rifted continental margin. The calc-alkaline composition of the host rocks to the Anderson Mountain deposit suggests that mineralization there formed in a continental margin arc, outboard of the extended continental margin setting of the peralkaline-hosted Dry Creek and WTF deposits.
","language":"English","publisher":"Society of Economic Geologists","doi":"10.2113/econgeo.107.7.1403","usgsCitation":"Dusel-Bacon, C., Foley, N.K., Slack, J.E., Koenig, A.E., and Oscarson, R.L., 2012, Peralkaline- and calc-alkaline-hosted volcanogenic massive sulfide deposits of the Bonnifield District, East-Central Alaska: Economic Geology, v. 107, no. 7, p. 1403-1432, https://doi.org/10.2113/econgeo.107.7.1403.","productDescription":"30 p.","startPage":"1403","endPage":"1432","costCenters":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"links":[{"id":291192,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":291191,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2113/econgeo.107.7.1403"}],"country":"United States","state":"Alaska","otherGeospatial":"Bonnifield District","volume":"107","issue":"7","noUsgsAuthors":false,"publicationDate":"2012-10-12","publicationStatus":"PW","scienceBaseUri":"57f7f3c1e4b0bc0bec0a0b77","contributors":{"authors":[{"text":"Dusel-Bacon, Cynthia 0000-0001-8481-739X cdusel@usgs.gov","orcid":"https://orcid.org/0000-0001-8481-739X","contributorId":2797,"corporation":false,"usgs":true,"family":"Dusel-Bacon","given":"Cynthia","email":"cdusel@usgs.gov","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":496798,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Foley, Nora K. 0000-0003-0124-3509 nfoley@usgs.gov","orcid":"https://orcid.org/0000-0003-0124-3509","contributorId":4010,"corporation":false,"usgs":true,"family":"Foley","given":"Nora","email":"nfoley@usgs.gov","middleInitial":"K.","affiliations":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":496800,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Slack, John E.","contributorId":65774,"corporation":false,"usgs":true,"family":"Slack","given":"John","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":496801,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Koenig, Alan E. 0000-0002-5230-0924 akoenig@usgs.gov","orcid":"https://orcid.org/0000-0002-5230-0924","contributorId":1564,"corporation":false,"usgs":true,"family":"Koenig","given":"Alan","email":"akoenig@usgs.gov","middleInitial":"E.","affiliations":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":496797,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Oscarson, Robert L. roscarson@usgs.gov","contributorId":3390,"corporation":false,"usgs":true,"family":"Oscarson","given":"Robert","email":"roscarson@usgs.gov","middleInitial":"L.","affiliations":[],"preferred":true,"id":496799,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70118335,"text":"70118335 - 2012 - Distribution of arsenic, selenium, and other trace elements in high pyrite Appalachian coals: evidence for multiple episodes of pyrite formation","interactions":[],"lastModifiedDate":"2014-07-28T14:13:12","indexId":"70118335","displayToPublicDate":"2013-07-28T14:04:00","publicationYear":"2012","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":"Distribution of arsenic, selenium, and other trace elements in high pyrite Appalachian coals: evidence for multiple episodes of pyrite formation","docAbstract":"Pennsylvanian coals in the Appalachian Basin host pyrite that is locally enriched in potentially toxic trace elements such as As, Se, Hg, Pb, and Ni. A comparison of pyrite-rich coals from northwestern Alabama, eastern Kentucky, and West Virginia reveals differences in concentrations and mode of occurrence of trace elements in pyrite. Pyrite occurs as framboids, dendrites, or in massive crystalline form in cell lumens or crosscutting veins. Metal concentrations in pyrite vary over all scales, from microscopic to mine to regional, because trace elements are inhomogeneously distributed in the different morphological forms of pyrite, and in the multiple generations of sulfide mineral precipitates.
\nEarly diagenetic framboidal pyrite is usually depleted in As, Se, and Hg, and enriched in Pb and Ni, compared to other pyrite forms. In dendritic pyrite, maps of As distribution show a chemical gradient from As-rich centers to As-poor distal branches, whereas Se concentrations are highest at the distal edges of the branches. Massive crystalline pyrite that fills veins is composed of several generations of sulfide minerals. Pyrite in late-stage veins commonly exhibits As-rich growth zones, indicating a probable epigenetic hydrothermal origin. Selenium is concentrated at the distal edges of veins. A positive correlation of As and Se in pyrite veins from Kentucky coals, and of As and Hg in pyrite-filled veins from Alabama coals, suggests coprecipitation of these elements from the same fluid.
\nIn the Kentucky coal samples (n = 18), As and Se contents in pyrite-filled veins average 4200 ppm and 200 ppm, respectively. In Alabama coal samples, As in pyrite-filled veins averages 2700 ppm (n = 34), whereas As in pyrite-filled cellular structures averages 6470 ppm (n = 35). In these same Alabama samples, Se averages 80 ppm in pyrite-filled veins, but was below the detection limit in cell structures. In samples of West Virginia massive pyrite, As averages 1700 ppm, and Se averages 270 ppm (n = 24). The highest concentration of Hg (≤ 102 ppm) is in Alabama pyrite veins.
\nImproved detailed descriptions of sulfide morphology, sulfide mineral paragenesis, and trace-element concentration and distribution allow more informed predictions of: (1) the relative rate of release of trace elements during weathering of pyrite in coals, and (2) the relative effectiveness of various coal-cleaning procedures of removing pyrite. For example, trace element-rich pyrite has been shown to be more soluble than stoichiometric pyrite, and fragile fine-grained pyrite forms such as dendrites and framboids are more susceptible to dissolution and disaggregation but less amenable to removal during coal cleaning.
","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"International Journal of Coal Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","doi":"10.1016/j.coal.2012.01.015","usgsCitation":"Diehl, S.F., Goldhaber, M., Koenig, A., Lowers, H., and Ruppert, L., 2012, Distribution of arsenic, selenium, and other trace elements in high pyrite Appalachian coals: evidence for multiple episodes of pyrite formation: International Journal of Coal Geology, v. 94, p. 238-249, https://doi.org/10.1016/j.coal.2012.01.015.","productDescription":"12 p.","startPage":"238","endPage":"249","costCenters":[],"links":[{"id":291189,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":291188,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.coal.2012.01.015"}],"country":"United States","state":"Alabama;Kentucky;West Virginia","otherGeospatial":"Appalachian Basin","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -88.25,33.21 ], [ -88.25,39.43 ], [ -79.66,39.43 ], [ -79.66,33.21 ], [ -88.25,33.21 ] ] ] } } ] }","volume":"94","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"57f7f3c1e4b0bc0bec0a0b79","contributors":{"authors":[{"text":"Diehl, S. F.","contributorId":84780,"corporation":false,"usgs":true,"family":"Diehl","given":"S.","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":496788,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Goldhaber, M. B. 0000-0002-1785-4243","orcid":"https://orcid.org/0000-0002-1785-4243","contributorId":103280,"corporation":false,"usgs":true,"family":"Goldhaber","given":"M. B.","affiliations":[],"preferred":false,"id":496789,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Koenig, A.E. 0000-0002-5230-0924","orcid":"https://orcid.org/0000-0002-5230-0924","contributorId":23679,"corporation":false,"usgs":true,"family":"Koenig","given":"A.E.","affiliations":[],"preferred":false,"id":496785,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lowers, H.A. 0000-0001-5360-9264","orcid":"https://orcid.org/0000-0001-5360-9264","contributorId":31843,"corporation":false,"usgs":true,"family":"Lowers","given":"H.A.","affiliations":[],"preferred":false,"id":496786,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Ruppert, L.F. 0000-0003-4990-0539","orcid":"https://orcid.org/0000-0003-4990-0539","contributorId":59043,"corporation":false,"usgs":true,"family":"Ruppert","given":"L.F.","affiliations":[],"preferred":false,"id":496787,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ]}