{"pageNumber":"208","pageRowStart":"5175","pageSize":"25","recordCount":16505,"records":[{"id":70037539,"text":"70037539 - 2010 - Fault-related clay authigenesis along the Moab Fault: Implications for calculations of fault rock composition and mechanical and hydrologic fault zone properties","interactions":[],"lastModifiedDate":"2012-03-12T17:22:05","indexId":"70037539","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2468,"text":"Journal of Structural Geology","active":true,"publicationSubtype":{"id":10}},"title":"Fault-related clay authigenesis along the Moab Fault: Implications for calculations of fault rock composition and mechanical and hydrologic fault zone properties","docAbstract":"The presence of clays in fault rocks influences both the mechanical and hydrologic properties of clay-bearing faults, and therefore it is critical to understand the origin of clays in fault rocks and their distributions is of great importance for defining fundamental properties of faults in the shallow crust. Field mapping shows that layers of clay gouge and shale smear are common along the Moab Fault, from exposures with throws ranging from 10 to ???1000 m. Elemental analyses of four locations along the Moab Fault show that fault rocks are enriched in clays at R191 and Bartlett Wash, but that this clay enrichment occurred at different times and was associated with different fluids. Fault rocks at Corral and Courthouse Canyons show little difference in elemental composition from adjacent protolith, suggesting that formation of fault rocks at those locations is governed by mechanical processes. Friction tests show that these authigenic clays result in fault zone weakening, and potentially influence the style of failure along the fault (seismogenic vs. aseismic) and potentially influence the amount of fluid loss associated with coseismic dilation. Scanning electron microscopy shows that authigenesis promotes that continuity of slip surfaces, thereby enhancing seal capacity. The occurrence of the authigenesis, and its influence on the sealing properties of faults, highlights the importance of determining the processes that control this phenomenon. ?? 2010 Elsevier Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Structural Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.jsg.2010.07.009","issn":"01918141","usgsCitation":"Solum, J., Davatzes, N., and Lockner, D., 2010, Fault-related clay authigenesis along the Moab Fault: Implications for calculations of fault rock composition and mechanical and hydrologic fault zone properties: Journal of Structural Geology, v. 32, no. 12, p. 1899-1911, https://doi.org/10.1016/j.jsg.2010.07.009.","startPage":"1899","endPage":"1911","numberOfPages":"13","costCenters":[],"links":[{"id":218059,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.jsg.2010.07.009"},{"id":246039,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"32","issue":"12","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0f20e4b0c8380cd537a5","contributors":{"authors":[{"text":"Solum, J.G.","contributorId":79280,"corporation":false,"usgs":true,"family":"Solum","given":"J.G.","email":"","affiliations":[],"preferred":false,"id":461508,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Davatzes, N.C.","contributorId":59219,"corporation":false,"usgs":true,"family":"Davatzes","given":"N.C.","email":"","affiliations":[],"preferred":false,"id":461507,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lockner, D.A. 0000-0001-8630-6833","orcid":"https://orcid.org/0000-0001-8630-6833","contributorId":85603,"corporation":false,"usgs":true,"family":"Lockner","given":"D.A.","affiliations":[],"preferred":false,"id":461509,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70037528,"text":"70037528 - 2010 - Targeting land-use change for nitratenitrogen load reductions in an agricultural watershed","interactions":[],"lastModifiedDate":"2012-03-12T17:21:58","indexId":"70037528","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2456,"text":"Journal of Soil and Water Conservation","active":true,"publicationSubtype":{"id":10}},"title":"Targeting land-use change for nitratenitrogen load reductions in an agricultural watershed","docAbstract":"The research was conducted as part of the USDA's Conservation Effects Assessment Project. The objective of the project was to evaluate the environmental effects of land-use changes, with a focus on understanding how the spatial distribution throughout a watershed influences their effectiveness.The Soil and Water AssessmentTool (SWAT) water quality model was applied to the Squaw Creek watershed, which covers 4,730 ha (11,683 ac) of prime agriculture land in southern Iowa. The model was calibrated (2000 to 2004) and validated (1996 to 1999) for overall watershed hydrology and for streamflow and nitrate loadings at the watershed outlet on an annual and monthly basis. Four scenarios for land-use change were evaluated including one scenario consistent with recent land-use changes and three scenarios focused on land-use change on highly erodible land areas, upper basin areas, and floodplain areas. Results for the Squaw Creek watershed suggested that nitrate losses were sensitive to land-use change. If land-use patterns were restored to 1990 conditions, nitrate loads may be reduced 7% to 47% in the watershed and subbasins, whereas converting row crops to grass in highly erodible land, upper basin, and floodplain areas would reduce nitrate loads by 47%, 16%, and 8%, respectively. These SWAT model simulations can provide guidance on how to begin targeting land-use change for nitrate load reductions in agricultural watersheds.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Soil and Water Conservation","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.2489/jswc.65.6.342","issn":"00224561","usgsCitation":"Jha, M., Schilling, K.E., Gassman, P.W., and Wolter, C., 2010, Targeting land-use change for nitratenitrogen load reductions in an agricultural watershed: Journal of Soil and Water Conservation, v. 65, no. 6, p. 342-352, https://doi.org/10.2489/jswc.65.6.342.","startPage":"342","endPage":"352","numberOfPages":"11","costCenters":[],"links":[{"id":475835,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.2489/jswc.65.6.342","text":"Publisher Index Page"},{"id":217984,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2489/jswc.65.6.342"},{"id":245959,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"65","issue":"6","noUsgsAuthors":false,"publicationDate":"2010-11-02","publicationStatus":"PW","scienceBaseUri":"505ba3e5e4b08c986b31ff7c","contributors":{"authors":[{"text":"Jha, M.K.","contributorId":58127,"corporation":false,"usgs":true,"family":"Jha","given":"M.K.","email":"","affiliations":[],"preferred":false,"id":461451,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schilling, K. E.","contributorId":61982,"corporation":false,"usgs":true,"family":"Schilling","given":"K.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":461452,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gassman, Philip W.","contributorId":33952,"corporation":false,"usgs":false,"family":"Gassman","given":"Philip","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":461450,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wolter, C.F.","contributorId":23301,"corporation":false,"usgs":true,"family":"Wolter","given":"C.F.","email":"","affiliations":[],"preferred":false,"id":461449,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70037519,"text":"70037519 - 2010 - Fire helps restore natural disturbance regime to benefit rare and endangered marsh birds endemic to the Colorado River","interactions":[],"lastModifiedDate":"2012-03-12T17:22:01","indexId":"70037519","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1450,"text":"Ecological Applications","active":true,"publicationSubtype":{"id":10}},"title":"Fire helps restore natural disturbance regime to benefit rare and endangered marsh birds endemic to the Colorado River","docAbstract":"Large flood events were part of the historical disturbance regime within the lower basin of most large river systems around the world. Large flood events are now rare in the lower basins of most large river systems due to flood control structures. Endemic organisms that are adapted to this historical disturbance regime have become less abundant due to these dramatic changes in the hydrology and the resultant changes in vegetation structure. The Yuma Clapper Rail is a federally endangered bird that breeds in emergent marshes within the lower Colorado River basin in the southwestern United States and northwestern Mexico. We evaluated whether prescribed fire could be used as a surrogate disturbance event to help restore historical conditions for the benefit of Yuma Clapper Rails and four sympatric marsh-dependent birds. We conducted call-broadcast surveys for marsh birds within burned and unburned (control) plots both pre-and post-burn. Fire increased the numbers of Yuma Clapper Rails and Virginia Rails, and did not affect the numbers of Black Rails, Soras, and Least Bitterns. We found no evidence that detection probability of any of the five species differed between burn and control plots. Our results suggest that prescribed fire can be used to set back succession of emergent marshlands and help mimic the natural disturbance regime in the lower Colorado River basin. Hence, prescribed fire can be used to help increase Yuma Clapper Rail populations without adversely affecting sympatric species. Implementing a coordinated long-term fire management plan within marshes of the lower Colorado River may allow regulatory agencies to remove the Yuma Clapper Rail from the endangered species list. ?? 2010 by the Ecological Society of America.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Ecological Applications","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1890/09-1624.1","issn":"10510761","usgsCitation":"Conway, C., Nadeau, C., and Piest, L., 2010, Fire helps restore natural disturbance regime to benefit rare and endangered marsh birds endemic to the Colorado River: Ecological Applications, v. 20, no. 7, p. 2024-2035, https://doi.org/10.1890/09-1624.1.","startPage":"2024","endPage":"2035","numberOfPages":"12","costCenters":[],"links":[{"id":217917,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1890/09-1624.1"},{"id":245890,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"20","issue":"7","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a103fe4b0c8380cd53bbb","contributors":{"authors":[{"text":"Conway, C.J.","contributorId":33417,"corporation":false,"usgs":true,"family":"Conway","given":"C.J.","email":"","affiliations":[],"preferred":false,"id":461420,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Nadeau, C.P.","contributorId":98426,"corporation":false,"usgs":true,"family":"Nadeau","given":"C.P.","email":"","affiliations":[],"preferred":false,"id":461421,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Piest, L.","contributorId":27724,"corporation":false,"usgs":true,"family":"Piest","given":"L.","affiliations":[],"preferred":false,"id":461419,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70037513,"text":"70037513 - 2010 - Reference condition approach to restoration planning","interactions":[],"lastModifiedDate":"2012-03-12T17:22:06","indexId":"70037513","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3301,"text":"River Research and Applications","active":true,"publicationSubtype":{"id":10}},"title":"Reference condition approach to restoration planning","docAbstract":"Ecosystem restoration planning requires quantitative rigor to evaluate alternatives, define end states, report progress and perform environmental benefits analysis (EBA). Unfortunately, existing planning frameworks are, at best, semi-quantitative. In this paper, we: (1) describe a quantitative restoration planning approach based on a comprehensive, but simple mathematical framework that can be used to effectively apply knowledge and evaluate alternatives, (2) use the approach to derive a simple but precisely defined lexicon based on the reference condition concept and allied terms and (3) illustrate the approach with an example from the Upper Mississippi River System (UMRS) using hydrologic indicators. The approach supports the development of a scaleable restoration strategy that, in theory, can be expanded to ecosystem characteristics such as hydraulics, geomorphology, habitat and biodiversity. We identify three reference condition types, best achievable condition (A BAC), measured magnitude (MMi which can be determined at one or many times and places) and desired future condition (ADFC) that, when used with the mathematical framework, provide a complete system of accounts useful for goal-oriented system-level management and restoration. Published in 2010 by John Wiley & Sons, Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"River Research and Applications","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1002/rra.1330","issn":"15351459","usgsCitation":"Nestler, J., Theiling, C., Lubinski, S., and Smith, D., 2010, Reference condition approach to restoration planning: River Research and Applications, v. 26, no. 10, p. 1199-1219, https://doi.org/10.1002/rra.1330.","startPage":"1199","endPage":"1219","numberOfPages":"21","costCenters":[],"links":[{"id":246079,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":218097,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/rra.1330"}],"volume":"26","issue":"10","noUsgsAuthors":false,"publicationDate":"2010-11-24","publicationStatus":"PW","scienceBaseUri":"50e4a426e4b0e8fec6cdba6f","contributors":{"authors":[{"text":"Nestler, J.M.","contributorId":85685,"corporation":false,"usgs":true,"family":"Nestler","given":"J.M.","email":"","affiliations":[],"preferred":false,"id":461400,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Theiling, C.H.","contributorId":36262,"corporation":false,"usgs":true,"family":"Theiling","given":"C.H.","email":"","affiliations":[],"preferred":false,"id":461397,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lubinski, S.J.","contributorId":83063,"corporation":false,"usgs":true,"family":"Lubinski","given":"S.J.","email":"","affiliations":[{"id":606,"text":"Upper Midwest Environmental Sciences Center","active":true,"usgs":true}],"preferred":false,"id":461399,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Smith, D.L.","contributorId":41833,"corporation":false,"usgs":true,"family":"Smith","given":"D.L.","email":"","affiliations":[],"preferred":false,"id":461398,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70037480,"text":"70037480 - 2010 - An approach to quantify sources, seasonal change, and biogeochemical processes affecting metal loading in streams: Facilitating decisions for remediation of mine drainage","interactions":[],"lastModifiedDate":"2018-10-09T10:16:02","indexId":"70037480","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":835,"text":"Applied Geochemistry","active":true,"publicationSubtype":{"id":10}},"title":"An approach to quantify sources, seasonal change, and biogeochemical processes affecting metal loading in streams: Facilitating decisions for remediation of mine drainage","docAbstract":"Historical mining has left complex problems in catchments throughout the world. Land managers are faced with making cost-effective plans to remediate mine influences. Remediation plans are facilitated by spatial mass-loading profiles that indicate the locations of metal mass-loading, seasonal changes, and the extent of biogeochemical processes. Field-scale experiments during both low- and high-flow conditions and time-series data over diel cycles illustrate how this can be accomplished. A low-flow experiment provided spatially detailed loading profiles to indicate where loading occurred. For example, SO<sub>4</sub><sup>2 -</sup> was principally derived from sources upstream from the study reach, but three principal locations also were important for SO<sub>4</sub><sup>2 -</sup> loading within the reach. During high-flow conditions, Lagrangian sampling provided data to interpret seasonal changes and indicated locations where snowmelt runoff flushed metals to the stream. Comparison of metal concentrations between the low- and high-flow experiments indicated substantial increases in metal loading at high flow, but little change in metal concentrations, showing that toxicity at the most downstream sampling site was not substantially greater during snowmelt runoff. During high-flow conditions, a detailed temporal sampling at fixed sites indicated that Zn concentration more than doubled during the diel cycle. Monitoring programs must account for diel variation to provide meaningful results. Mass-loading studies during different flow conditions and detailed time-series over diel cycles provide useful scientific support for stream management decisions.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Applied Geochemistry","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.apgeochem.2010.02.005","issn":"08832927","usgsCitation":"Kimball, B.A., Runkel, R., and Walton-Day, K., 2010, An approach to quantify sources, seasonal change, and biogeochemical processes affecting metal loading in streams: Facilitating decisions for remediation of mine drainage: Applied Geochemistry, v. 25, no. 5, p. 728-740, https://doi.org/10.1016/j.apgeochem.2010.02.005.","startPage":"728","endPage":"740","numberOfPages":"13","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":217125,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.apgeochem.2010.02.005"},{"id":245042,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"25","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059ea0ce4b0c8380cd485d8","contributors":{"authors":[{"text":"Kimball, B. A.","contributorId":87583,"corporation":false,"usgs":false,"family":"Kimball","given":"B.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":461259,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Runkel, R.L.","contributorId":97529,"corporation":false,"usgs":true,"family":"Runkel","given":"R.L.","affiliations":[],"preferred":false,"id":461260,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Walton-Day, K.","contributorId":14054,"corporation":false,"usgs":true,"family":"Walton-Day","given":"K.","affiliations":[],"preferred":false,"id":461258,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70037449,"text":"70037449 - 2010 - Redox transformations and transport of cesium and iodine (-1, 0, +5) in oxidizing and reducing zones of a sand and gravel aquifer","interactions":[],"lastModifiedDate":"2018-10-10T13:03:26","indexId":"70037449","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1565,"text":"Environmental Science & Technology","onlineIssn":"1520-5851","printIssn":"0013-936X","active":true,"publicationSubtype":{"id":10}},"title":"Redox transformations and transport of cesium and iodine (-1, 0, +5) in oxidizing and reducing zones of a sand and gravel aquifer","docAbstract":"Tracer tests were performed in distinct biogeochemical zones of a sand and gravel aquifer in Cape Cod, MA, to study the redox chemistry (I) and transport (Cs, I) of cesium and iodine in a field setting. Injection of iodide (I <sup>-</sup>) into an oxic zone of the aquifer resulted in oxidation of I <sup>-</sup> to molecular iodine (I<sub>2</sub>) and iodate (IO<sub>3</sub><sup>-</sup>) over transport distances of several meters. Oxidation is attributed to Mn-oxides present in the sediment. Transport of injected IO <sub>3</sub><sup>-</sup> and Cs<sup>+</sup> was retarded in the mildly acidic oxic zone, with retardation factors of 1.6-1.8 for IO<sub>3</sub><sup>-</sup> and 2.3-4.4for Cs. Cs retardation was likely due to cation exchange reactions. Injection of IO<sub>3</sub><sup>-</sup> into a Fe-reducing zone of the aquifer resulted in rapid and complete reduction to I<sup>-</sup> within 3 m of transport. The nonconservative behavior of Cs and I observed during the tracer tests underscores the necessity of taking the redox chemistry of I as well as sorption properties of I species and Cs into account when predicting transport of radionuclides (e.g., <sup>129</sup>I and <sup>137</sup>Cs) in the environment.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Science and Technology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1021/es902865s","issn":"0013936X","usgsCitation":"Fox, P.M., Kent, D.B., and Davis, J., 2010, Redox transformations and transport of cesium and iodine (-1, 0, +5) in oxidizing and reducing zones of a sand and gravel aquifer: Environmental Science & Technology, v. 44, no. 6, p. 1940-1946, https://doi.org/10.1021/es902865s.","productDescription":"7 p.","startPage":"1940","endPage":"1946","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":245329,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":217384,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1021/es902865s"}],"country":"United States","state":"Massachusetts","city":"Cape Cod","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -70.69427490234375,\n              41.509605687197975\n            ],\n            [\n              -70.69427490234375,\n              42.10943017110108\n            ],\n            [\n              -69.90463256835938,\n              42.10943017110108\n            ],\n            [\n              -69.90463256835938,\n              41.509605687197975\n            ],\n            [\n              -70.69427490234375,\n              41.509605687197975\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"44","issue":"6","noUsgsAuthors":false,"publicationDate":"2010-02-19","publicationStatus":"PW","scienceBaseUri":"50e4a3c3e4b0e8fec6cdb970","contributors":{"authors":[{"text":"Fox, Patricia M.","contributorId":100276,"corporation":false,"usgs":true,"family":"Fox","given":"Patricia","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":461105,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kent, Douglas B. 0000-0003-3758-8322 dbkent@usgs.gov","orcid":"https://orcid.org/0000-0003-3758-8322","contributorId":1871,"corporation":false,"usgs":true,"family":"Kent","given":"Douglas","email":"dbkent@usgs.gov","middleInitial":"B.","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true}],"preferred":true,"id":461104,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Davis, James A.","contributorId":69289,"corporation":false,"usgs":true,"family":"Davis","given":"James A.","affiliations":[],"preferred":false,"id":461106,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70037442,"text":"70037442 - 2010 - Mapping of road-salt-contaminated groundwater discharge and estimation of chloride load to a small stream in southern New Hampshire, USA","interactions":[],"lastModifiedDate":"2012-03-12T17:22:09","indexId":"70037442","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1924,"text":"Hydrological Processes","active":true,"publicationSubtype":{"id":10}},"title":"Mapping of road-salt-contaminated groundwater discharge and estimation of chloride load to a small stream in southern New Hampshire, USA","docAbstract":"Concentrations of chloride in excess of State of New Hampshire water-quality standards (230 mg/l) have been measured in watersheds adjacent to an interstate highway (I-93) in southern New Hampshire. A proposed widening plan for I-93 has raised concerns over further increases in chloride. As part of this effort, road-salt-contaminated groundwater discharge was mapped with terrain electrical conductivity (EC) electromagnetic (EM) methods in the fall of 2006 to identify potential sources of chloride during base-flow conditions to a small stream, Policy Brook. Three different EM meters were used to measure different depths below the streambed (ranging from 0 to 3 m). Results from the three meters showed similar patterns and identified several reaches where high EC groundwater may have been discharging. Based on the delineation of high (up to 350 mmhos/m) apparent terrain EC, seven-streambed piezometers were installed to sample shallow groundwater. Locations with high specific conductance in shallow groundwater (up to 2630 mmhos/m) generally matched locations with high streambed (shallow subsurface) terrain EC. A regression equation was used to convert the terrain EC of the streambed to an equivalent chloride concentration in shallow groundwater unique for this site. Utilizing the regression equation and estimates of onedimensional Darcian flow through the streambed, a maximum potential groundwater chloride load was estimated at 188 Mg of chloride per year. Changes in chloride concentration in stream water during streamflow recessions showed a linear response that indicates the dominant process affecting chloride is advective flow of chloride-enriched groundwater discharge. Published in 2010 by John Wiley & Sons, Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Hydrological Processes","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1002/hyp.7645","issn":"08856087","usgsCitation":"Harte, P., and Trowbridge, P., 2010, Mapping of road-salt-contaminated groundwater discharge and estimation of chloride load to a small stream in southern New Hampshire, USA: Hydrological Processes, v. 24, no. 17, p. 2349-2368, https://doi.org/10.1002/hyp.7645.","startPage":"2349","endPage":"2368","numberOfPages":"20","costCenters":[],"links":[{"id":217329,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/hyp.7645"},{"id":245269,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"24","issue":"17","noUsgsAuthors":false,"publicationDate":"2010-07-20","publicationStatus":"PW","scienceBaseUri":"505a5069e4b0c8380cd6b6a1","contributors":{"authors":[{"text":"Harte, P. T. 0000-0002-7718-1204","orcid":"https://orcid.org/0000-0002-7718-1204","contributorId":36143,"corporation":false,"usgs":true,"family":"Harte","given":"P. T.","affiliations":[],"preferred":false,"id":461083,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Trowbridge, P.R.","contributorId":11035,"corporation":false,"usgs":true,"family":"Trowbridge","given":"P.R.","email":"","affiliations":[],"preferred":false,"id":461082,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70037438,"text":"70037438 - 2010 - Using laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) to explore geochemical taphonomy of vertebrate fossils in the upper cretaceous two medicine and Judith River formations of Montana","interactions":[],"lastModifiedDate":"2012-03-12T17:22:08","indexId":"70037438","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3000,"text":"Palaios","active":true,"publicationSubtype":{"id":10}},"title":"Using laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) to explore geochemical taphonomy of vertebrate fossils in the upper cretaceous two medicine and Judith River formations of Montana","docAbstract":"Laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) was used to determine rare earth element (REE) content of 76 fossil bones collected from the Upper Cretaceous (Campanian) Two Medicine (TMF) and Judith River (JRF) Formations of Montana. REE content is distinctive at the formation scale, with TMF samples exhibiting generally higher overall REE content and greater variability in REE enrichment than JRF samples. Moreover, JRF bones exhibit relative enrichment in heavy REE, whereas TMF bones span heavy and light enrichment fields in roughly equal proportions. TMF bones are also characterized by more negative Ce anomalies and greater U enrichment than JRF bones, which is consistent with more oxidizing diagenetic conditions in the TMF. Bonebeds in both formations show general consistency in REE content, with no indication of spatial or temporal mixing within sites. Previous studies, however, suggest that the bonebeds in question are attritional assemblages that accumulated over considerable time spans. The absence of geochemical evidence for mixing is consistent with diagenesis transpiring in settings that remained chemically and hydrologically stable during recrystallization. Lithology-related patterns in REE content were also compared, and TMF bones recovered from fluvial sandstones show relative enrichment in heavy REE when compared with bones recovered from fine-grained floodplain deposits. In contrast, JRF bones, regardless of lithologic context (sandstone versus mudstone), exhibit similar patterns of REE uptake. This result is consistent with previous reconstructions that suggest that channel-hosted microfossil bonebeds of the JRF developed via the reworking of preexisting concentrations embedded in the interfluve. Geochemical data further indicate that reworked elements were potentially delivered to channels in a recrystallized condition, which is consistent with rapid adsorption of REE postmortem. Copyright ?? 2010, SEPM (Society for Sedimentary Geology).","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Palaios","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.2110/palo.2009.p09-084r","issn":"08831351","usgsCitation":"Rogers, R., Fricke, H., Addona, V., Canavan, R., Dwyer, C., Harwood, C., Koenig, A., Murray, R., Thole, J., and Williams, J., 2010, Using laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) to explore geochemical taphonomy of vertebrate fossils in the upper cretaceous two medicine and Judith River formations of Montana: Palaios, v. 25, no. 3, p. 183-195, https://doi.org/10.2110/palo.2009.p09-084r.","startPage":"183","endPage":"195","numberOfPages":"13","costCenters":[],"links":[{"id":217327,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2110/palo.2009.p09-084r"},{"id":245267,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"25","issue":"3","noUsgsAuthors":false,"publicationDate":"2010-03-10","publicationStatus":"PW","scienceBaseUri":"505bc066e4b08c986b32a0d8","contributors":{"authors":[{"text":"Rogers, R.R.","contributorId":14228,"corporation":false,"usgs":true,"family":"Rogers","given":"R.R.","email":"","affiliations":[],"preferred":false,"id":461065,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fricke, H.C.","contributorId":78177,"corporation":false,"usgs":true,"family":"Fricke","given":"H.C.","email":"","affiliations":[],"preferred":false,"id":461071,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Addona, V.","contributorId":79732,"corporation":false,"usgs":true,"family":"Addona","given":"V.","email":"","affiliations":[],"preferred":false,"id":461072,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Canavan, R.R.","contributorId":18207,"corporation":false,"usgs":true,"family":"Canavan","given":"R.R.","email":"","affiliations":[],"preferred":false,"id":461066,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Dwyer, C.N.","contributorId":52814,"corporation":false,"usgs":true,"family":"Dwyer","given":"C.N.","email":"","affiliations":[],"preferred":false,"id":461068,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Harwood, C.L.","contributorId":13838,"corporation":false,"usgs":true,"family":"Harwood","given":"C.L.","email":"","affiliations":[],"preferred":false,"id":461064,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"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":461067,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Murray, R.","contributorId":80440,"corporation":false,"usgs":true,"family":"Murray","given":"R.","affiliations":[],"preferred":false,"id":461073,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Thole, J.T.","contributorId":56071,"corporation":false,"usgs":true,"family":"Thole","given":"J.T.","email":"","affiliations":[],"preferred":false,"id":461069,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Williams, J.","contributorId":76270,"corporation":false,"usgs":true,"family":"Williams","given":"J.","affiliations":[],"preferred":false,"id":461070,"contributorType":{"id":1,"text":"Authors"},"rank":10}]}}
,{"id":70037436,"text":"70037436 - 2010 - Geochronology and paleoclimatic implications of the last deglaciation of the Mauna Kea Ice Cap, Hawaii","interactions":[],"lastModifiedDate":"2012-03-12T17:22:09","indexId":"70037436","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1427,"text":"Earth and Planetary Science Letters","active":true,"publicationSubtype":{"id":10}},"title":"Geochronology and paleoclimatic implications of the last deglaciation of the Mauna Kea Ice Cap, Hawaii","docAbstract":"We present new 3He surface exposure ages on moraines and bedrock near the summit of Mauna Kea, Hawaii, which refine the age of the Mauna Kea Ice Cap during the Local Last Glacial Maximum (LLGM) and identify a subsequent fluctuation of the ice margin. The 3He ages, when combined with those reported previously, indicate that the local ice-cap margin began to retreat from its LLGM extent at 20.5??2.5ka, in agreement with the age of deglaciation determined from LLGM moraines elsewhere in the tropics. The ice-cap margin receded to a position at least 3km upslope for ~4.5-5.0kyr before readvancing nearly to its LLGM extent. The timing of this readvance at ~15.4ka corresponds to a large reduction of the Atlantic meridional overturning circulation (AMOC) following Heinrich Event 1. Subsequent ice-margin retreat began at 14.6??1.9ka, corresponding to a rapid resumption of the AMOC and onset of the B??lling warm interval, with the ice cap melting rapidly to complete deglaciation. Additional 3He ages obtained from a flood deposit date the catastrophic outburst of a moraine-dammed lake roughly coeval with the Younger Dryas cold interval, suggesting a more active hydrological cycle on Mauna Kea at this time. A coupled mass balance and ice dynamics model is used to constrain the climate required to generate ice caps of LLGM and readvance sizes. The depression of the LLGM equilibrium line altitude requires atmospheric cooling of 4.5??1??C, whereas the mass balance modeling indicates an accompanying increase in precipitation of as much as three times that of present. We hypothesize (1) that the LLGM temperature depression was associated with global cooling, (2) that the temperature depression that contributed to the readvance occurred in response to an atmospheric teleconnection to the North Atlantic, and (3) that the precipitation enhancement associated with both events occurred in response to a southward shift in the position of the inter-tropical convergence zone (ITCZ). Such a shift in the ITCZ would have allowed midlatitude cyclones to reach Mauna Kea more frequently which would have increased precipitation at high elevations and caused additional cooling. ?? 2010 Elsevier B.V.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Earth and Planetary Science Letters","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.epsl.2010.06.025","issn":"0012821X","usgsCitation":"Anslow, F.S., Clark, P., Kurz, M., and Hostetler, S.W., 2010, Geochronology and paleoclimatic implications of the last deglaciation of the Mauna Kea Ice Cap, Hawaii: Earth and Planetary Science Letters, v. 297, no. 1-2, p. 234-248, https://doi.org/10.1016/j.epsl.2010.06.025.","startPage":"234","endPage":"248","numberOfPages":"15","costCenters":[],"links":[{"id":245235,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":217300,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.epsl.2010.06.025"}],"volume":"297","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a1732e4b0c8380cd55409","contributors":{"authors":[{"text":"Anslow, Faron S.","contributorId":35442,"corporation":false,"usgs":true,"family":"Anslow","given":"Faron","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":461056,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Clark, P.U.","contributorId":78449,"corporation":false,"usgs":true,"family":"Clark","given":"P.U.","email":"","affiliations":[],"preferred":false,"id":461059,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kurz, M.D.","contributorId":66845,"corporation":false,"usgs":true,"family":"Kurz","given":"M.D.","email":"","affiliations":[],"preferred":false,"id":461058,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hostetler, S. W. 0000-0003-2272-8302","orcid":"https://orcid.org/0000-0003-2272-8302","contributorId":42911,"corporation":false,"usgs":true,"family":"Hostetler","given":"S.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":461057,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70037388,"text":"70037388 - 2010 - The quixotic search for a comprehensive understanding of hydrologic response at the surface: Horton, Dunne, Dunton, and the role of concept-development simulation","interactions":[],"lastModifiedDate":"2012-03-12T17:22:07","indexId":"70037388","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1924,"text":"Hydrological Processes","active":true,"publicationSubtype":{"id":10}},"title":"The quixotic search for a comprehensive understanding of hydrologic response at the surface: Horton, Dunne, Dunton, and the role of concept-development simulation","docAbstract":"[No abstract available]","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Hydrological Processes","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1002/hyp.7834","issn":"08856087","usgsCitation":"Loague, K., Heppner, C., Ebel, B., and VanderKwaak, J., 2010, The quixotic search for a comprehensive understanding of hydrologic response at the surface: Horton, Dunne, Dunton, and the role of concept-development simulation: Hydrological Processes, v. 24, no. 17, p. 2499-2505, https://doi.org/10.1002/hyp.7834.","startPage":"2499","endPage":"2505","numberOfPages":"7","costCenters":[],"links":[{"id":217411,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/hyp.7834"},{"id":245357,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"24","issue":"17","noUsgsAuthors":false,"publicationDate":"2010-07-20","publicationStatus":"PW","scienceBaseUri":"505baeede4b08c986b32442c","contributors":{"authors":[{"text":"Loague, K.","contributorId":77307,"corporation":false,"usgs":true,"family":"Loague","given":"K.","affiliations":[],"preferred":false,"id":460829,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Heppner, C.S.","contributorId":37147,"corporation":false,"usgs":true,"family":"Heppner","given":"C.S.","affiliations":[],"preferred":false,"id":460828,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ebel, B.A.","contributorId":87772,"corporation":false,"usgs":true,"family":"Ebel","given":"B.A.","email":"","affiliations":[],"preferred":false,"id":460830,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"VanderKwaak, J.E.","contributorId":103497,"corporation":false,"usgs":true,"family":"VanderKwaak","given":"J.E.","email":"","affiliations":[],"preferred":false,"id":460831,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70037359,"text":"70037359 - 2010 - Determination of antibiotics in sewage from hospitals, nursery and slaughter house, wastewater treatment plant and source water in Chongqing region of Three Gorge Reservoir in China","interactions":[],"lastModifiedDate":"2018-10-11T18:00:07","indexId":"70037359","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1555,"text":"Environmental Pollution","active":true,"publicationSubtype":{"id":10}},"title":"Determination of antibiotics in sewage from hospitals, nursery and slaughter house, wastewater treatment plant and source water in Chongqing region of Three Gorge Reservoir in China","docAbstract":"<p><span>Sewage samples from 4 hospitals, 1 nursery, 1 slaughter house, 1&nbsp;wastewater treatment plant&nbsp;and 5 source water samples of Chongqing region of Three Gorge Reservoir were analyzed for macrolide, lincosamide, trimethoprim, fluorouinolone, sulfonamide and tetracycline&nbsp;antibiotics&nbsp;by online solid-phase extraction and liquid chromatography-tandem mass spectrometry. Results showed that the concentration of ofloxacin (OFX) in hospital was the highest among all water environments ranged from 1.660&nbsp;μg/L to 4.240&nbsp;μg/L and norfloxacin (NOR, 0.136–1.620&nbsp;μg/L), ciproflaxacin (CIP, ranged from 0.011&nbsp;μg/L to 0.136&nbsp;μg/L), trimethoprim (TMP, 0.061–0.174&nbsp;μg/L) were commonly detected. Removal range of antibiotics in the wastewater treatment plant was 18–100% and the removal ratio of tylosin, oxytetracycline and tetracycline were 100%. Relatively higher removal efficiencies were observed for tylosin (TYL), oxytetracycline (OXY) and tetracycline (TET)(100%), while lower removal efficiencies were observed for Trimethoprim (TMP, 1%), Epi-iso-chlorotetracycline (EICIC, 18%) and Erythromycin-H</span><sub>2</sub><span>O (ERY-H</span><sub>2</sub><span>O, 24%). Antibiotics were removed more efficiently in&nbsp;primary treatment compared with those in&nbsp;secondary treatment.</span></p>","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Pollution","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","doi":"10.1016/j.envpol.2009.12.034","issn":"02697491","usgsCitation":"Chang, X., Meyer, M.T., Liu, X., Zhao, Q., Hao, C., Chen, J., Qiu, Z., Yang, L., Cao, J., and Shu, W., 2010, Determination of antibiotics in sewage from hospitals, nursery and slaughter house, wastewater treatment plant and source water in Chongqing region of Three Gorge Reservoir in China: Environmental Pollution, v. 158, no. 5, p. 1444-1450, https://doi.org/10.1016/j.envpol.2009.12.034.","productDescription":"7 p.","startPage":"1444","endPage":"1450","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":244912,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":217003,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.envpol.2009.12.034"}],"country":"China","otherGeospatial":"Chongqing region, Three Gorge Reservoir","volume":"158","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059ff92e4b0c8380cd4f277","contributors":{"authors":[{"text":"Chang, Xiaotian","contributorId":64834,"corporation":false,"usgs":true,"family":"Chang","given":"Xiaotian","email":"","affiliations":[],"preferred":false,"id":460645,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Meyer, Michael T. 0000-0001-6006-7985 mmeyer@usgs.gov","orcid":"https://orcid.org/0000-0001-6006-7985","contributorId":866,"corporation":false,"usgs":true,"family":"Meyer","given":"Michael","email":"mmeyer@usgs.gov","middleInitial":"T.","affiliations":[{"id":353,"text":"Kansas Water Science Center","active":false,"usgs":true}],"preferred":true,"id":460649,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Liu, Xiuying","contributorId":76529,"corporation":false,"usgs":true,"family":"Liu","given":"Xiuying","email":"","affiliations":[],"preferred":false,"id":460647,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Zhao, Q.","contributorId":74985,"corporation":false,"usgs":true,"family":"Zhao","given":"Q.","email":"","affiliations":[],"preferred":false,"id":460646,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Hao, Chen","contributorId":89306,"corporation":false,"usgs":true,"family":"Hao","given":"Chen","email":"","affiliations":[],"preferred":false,"id":460648,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Chen, J.-a.","contributorId":27715,"corporation":false,"usgs":true,"family":"Chen","given":"J.-a.","email":"","affiliations":[],"preferred":false,"id":460643,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Qiu, Z.","contributorId":99802,"corporation":false,"usgs":true,"family":"Qiu","given":"Z.","email":"","affiliations":[],"preferred":false,"id":460650,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Yang, L.","contributorId":6200,"corporation":false,"usgs":true,"family":"Yang","given":"L.","affiliations":[],"preferred":false,"id":460641,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Cao, J.","contributorId":64483,"corporation":false,"usgs":true,"family":"Cao","given":"J.","email":"","affiliations":[],"preferred":false,"id":460644,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Shu, W.","contributorId":6290,"corporation":false,"usgs":true,"family":"Shu","given":"W.","email":"","affiliations":[],"preferred":false,"id":460642,"contributorType":{"id":1,"text":"Authors"},"rank":10}]}}
,{"id":70037358,"text":"70037358 - 2010 - Tet and sul antibiotic resistance genes in livestock lagoons of various operation type, configuration, and antibiotic occurrence","interactions":[],"lastModifiedDate":"2018-10-09T10:57:13","indexId":"70037358","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1565,"text":"Environmental Science & Technology","onlineIssn":"1520-5851","printIssn":"0013-936X","active":true,"publicationSubtype":{"id":10}},"title":"Tet and sul antibiotic resistance genes in livestock lagoons of various operation type, configuration, and antibiotic occurrence","docAbstract":"<p>Although livestock operations are known to harbor elevated levels of antibiotic resistant bacteria, few studies have examined the potential of livestock waste lagoons to reduce antibiotic resistance genes (ARGs). The purpose of this study was to determine the prevalence and examine the behavior of tetracycline [tet(O) and tet(W)] and sulfonamide [sul(I) and su/(II)] ARGsin a broad cross-section of livestock lagoons within the same semiarid western watershed. ARGs were monitored for one year in the water and the settled solids of eight lagoon systems by quantitative polymerase chain reaction. In addition, antibiotic residues and various bulk water quality constituents were analyzed. It was found that the lagoons of the chicken layer operation had the lowest concentrations of both tet and sul ARGs and low total antibiotic concentrations, whereas su ARGs were highest in the swine lagoons, which generally corresponded to the highest total antibiotic concentrations. A marginal benefit of organic and small dairy operations also was observed compared to conventional and large dairies, respectively. In all lagoons, su ARGs were observed to be generally more recalcitrant than tet ARGs. Also, positive correlations of various bulk water quality constituents were identified with tet ARGs but not sul ARGs. Significant positive correlations were identified between several metals and tet ARGs, but Pearson's correlation coefficients were mostly lower than those determined between antibiotic residues and ARGs. This study represents a quantitative characterization of ARGs in lagoons across a variety of livestock operations and provides insight into potential options for managing antibiotic resistance emanating from agricultural activities.</p>","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Science and Technology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1021/es9038165","issn":"0013936X","usgsCitation":"McKinney, C., Loftin, K.A., Meyer, M.T., Davis, J., and Pruden, A., 2010, Tet and sul antibiotic resistance genes in livestock lagoons of various operation type, configuration, and antibiotic occurrence: Environmental Science & Technology, v. 44, no. 16, p. 6102-6109, https://doi.org/10.1021/es9038165.","productDescription":"8p.","startPage":"6102","endPage":"6109","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":245385,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":217437,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1021/es9038165"}],"volume":"44","issue":"16","noUsgsAuthors":false,"publicationDate":"2010-07-21","publicationStatus":"PW","scienceBaseUri":"505ba5e5e4b08c986b320d65","contributors":{"authors":[{"text":"McKinney, C.W.","contributorId":7943,"corporation":false,"usgs":true,"family":"McKinney","given":"C.W.","email":"","affiliations":[],"preferred":false,"id":460636,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Loftin, Keith A. 0000-0001-5291-876X kloftin@usgs.gov","orcid":"https://orcid.org/0000-0001-5291-876X","contributorId":868,"corporation":false,"usgs":true,"family":"Loftin","given":"Keith","email":"kloftin@usgs.gov","middleInitial":"A.","affiliations":[{"id":353,"text":"Kansas Water Science Center","active":false,"usgs":true}],"preferred":true,"id":460639,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Meyer, Michael T. 0000-0001-6006-7985 mmeyer@usgs.gov","orcid":"https://orcid.org/0000-0001-6006-7985","contributorId":866,"corporation":false,"usgs":true,"family":"Meyer","given":"Michael","email":"mmeyer@usgs.gov","middleInitial":"T.","affiliations":[{"id":353,"text":"Kansas Water Science Center","active":false,"usgs":true}],"preferred":true,"id":460640,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Davis, J.G.","contributorId":9447,"corporation":false,"usgs":true,"family":"Davis","given":"J.G.","email":"","affiliations":[],"preferred":false,"id":460637,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Pruden, A.","contributorId":11451,"corporation":false,"usgs":true,"family":"Pruden","given":"A.","email":"","affiliations":[],"preferred":false,"id":460638,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70037352,"text":"70037352 - 2010 - Organic intermediates in the anaerobic biodegradation of coal to methane under laboratory conditions","interactions":[],"lastModifiedDate":"2018-10-31T10:46:00","indexId":"70037352","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2958,"text":"Organic Geochemistry","active":true,"publicationSubtype":{"id":10}},"title":"Organic intermediates in the anaerobic biodegradation of coal to methane under laboratory conditions","docAbstract":"<p><span>Organic intermediates in coal fluids produced by anaerobic biodegradation of geopolymers in coal play a key role in the production of methane in natural gas reservoirs. Laboratory biodegradation experiments on sub-bituminous coal from Texas, USA, were conducted using bioreactors to examine the organic intermediates relevant to methane production. Production of methane in the bioreactors was linked to acetate accumulation in bioreactor fluid. Long chain fatty acids, alkanes (C</span><sub>19</sub><span>–C</span><sub>36</sub><span>) and various low molecular weight aromatics, including phenols, also accumulated in the bioreactor fluid and appear to be the primary intermediates in the biodegradation pathway from coal-derived geopolymers to acetate and methane.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.orggeochem.2010.03.005","usgsCitation":"Orem, W.H., Voytek, M.A., Jones, E., Lerch, H.E., Bates, A.L., Corum, M., Warwick, P.D., and Clark, A.C., 2010, Organic intermediates in the anaerobic biodegradation of coal to methane under laboratory conditions: Organic Geochemistry, v. 41, no. 9, p. 997-1000, https://doi.org/10.1016/j.orggeochem.2010.03.005.","productDescription":"4 p.","startPage":"997","endPage":"1000","costCenters":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":245291,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Texas","volume":"41","issue":"9","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a6fc3e4b0c8380cd75c5c","contributors":{"authors":[{"text":"Orem, William H. 0000-0003-4990-0539 borem@usgs.gov","orcid":"https://orcid.org/0000-0003-4990-0539","contributorId":577,"corporation":false,"usgs":true,"family":"Orem","given":"William","email":"borem@usgs.gov","middleInitial":"H.","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":460603,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Voytek, Mary A.","contributorId":91943,"corporation":false,"usgs":true,"family":"Voytek","given":"Mary","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":460601,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Jones, Elizabeth J.","contributorId":96791,"corporation":false,"usgs":true,"family":"Jones","given":"Elizabeth J.","affiliations":[],"preferred":false,"id":460604,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lerch, Harry E. tlerch@usgs.gov","contributorId":600,"corporation":false,"usgs":true,"family":"Lerch","given":"Harry","email":"tlerch@usgs.gov","middleInitial":"E.","affiliations":[],"preferred":true,"id":460605,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Bates, Anne L. 0000-0002-4875-4675 abates@usgs.gov","orcid":"https://orcid.org/0000-0002-4875-4675","contributorId":2789,"corporation":false,"usgs":true,"family":"Bates","given":"Anne","email":"abates@usgs.gov","middleInitial":"L.","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":460600,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Corum, M.D. 0000-0002-9038-3935 mcorum@usgs.gov","orcid":"https://orcid.org/0000-0002-9038-3935","contributorId":2249,"corporation":false,"usgs":true,"family":"Corum","given":"M.D.","email":"mcorum@usgs.gov","affiliations":[{"id":255,"text":"Energy Resources Program","active":true,"usgs":true},{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":460599,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Warwick, Peter D. 0000-0002-3152-7783 pwarwick@usgs.gov","orcid":"https://orcid.org/0000-0002-3152-7783","contributorId":762,"corporation":false,"usgs":true,"family":"Warwick","given":"Peter","email":"pwarwick@usgs.gov","middleInitial":"D.","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":false,"id":460602,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Clark, Arthur C. aclark@usgs.gov","contributorId":2320,"corporation":false,"usgs":true,"family":"Clark","given":"Arthur","email":"aclark@usgs.gov","middleInitial":"C.","affiliations":[],"preferred":true,"id":460598,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":70037327,"text":"70037327 - 2010 - Analysis of solvent dyes in refined petroleum products by electrospray ionization mass spectrometry","interactions":[],"lastModifiedDate":"2018-10-09T10:41:44","indexId":"70037327","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1709,"text":"Fuel","active":true,"publicationSubtype":{"id":10}},"title":"Analysis of solvent dyes in refined petroleum products by electrospray ionization mass spectrometry","docAbstract":"Solvent dyes are used to color refined petroleum products to enable differentiation between gasoline, diesel, and jet fuels. Analysis for these dyes in the hydrocarbon product is difficult due to their very low concentrations in such a complex matrix. Flow injection analysis/electrospray ionization/mass spectrometry in both negative and positive mode was used to optimize ionization of ten typical solvent dyes. Samples of hydrocarbon product were analyzed under similar conditions. Positive electrospray ionization produced very complex spectra, which were not suitably specific for targeting only the dyes. Negative electrospray ionization produced simple spectra because aliphatic and aromatic moieties were not ionized. This enabled screening for a target dye in samples of hydrocarbon product from a spill.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Fuel","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.fuel.2009.09.011","issn":"00162361","usgsCitation":"Rostad, C.E., 2010, Analysis of solvent dyes in refined petroleum products by electrospray ionization mass spectrometry: Fuel, v. 89, no. 5, p. 997-1005, https://doi.org/10.1016/j.fuel.2009.09.011.","productDescription":"9p.","startPage":"997","endPage":"1005","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":244911,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":217002,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.fuel.2009.09.011"}],"volume":"89","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059eb31e4b0c8380cd48c97","contributors":{"authors":[{"text":"Rostad, Colleen E. cerostad@usgs.gov","contributorId":833,"corporation":false,"usgs":true,"family":"Rostad","given":"Colleen","email":"cerostad@usgs.gov","middleInitial":"E.","affiliations":[],"preferred":true,"id":460485,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70037323,"text":"70037323 - 2010 - Snowmelt hydrograph interpretation: Revealing watershed scale hydrologic characteristics of the Yellowstone volcanic plateau","interactions":[],"lastModifiedDate":"2012-03-12T17:22:11","indexId":"70037323","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2342,"text":"Journal of Hydrology","active":true,"publicationSubtype":{"id":10}},"title":"Snowmelt hydrograph interpretation: Revealing watershed scale hydrologic characteristics of the Yellowstone volcanic plateau","docAbstract":"Snowmelt hydrograph analysis and groundwater age dates of cool water springs on the Yellowstone volcanic plateau provide evidence of high volumes of groundwater circulation in watersheds comprised of quaternary Yellowstone volcanics. Ratios of maximum to minimum mean daily discharge and average recession indices are calculated for watersheds within and surrounding the Yellowstone volcanic plateau. A model for snowmelt recession is used to separate groundwater discharge from overland runoff, and compare groundwater systems. Hydrograph signal interpretation is corroborated with chlorofluorocarbon (CFC) and tritium concentrations in cool water springs on the Yellowstone volcanic plateau. Hydrograph parameters show a spatial pattern correlated with watershed geology. Watersheds comprised dominantly of quaternary Yellowstone volcanics are characterized by slow streamflow recession, low maximum to minimum flow ratios. Cool springs sampled within the Park contain CFC's and tritium and have apparent CFC age dates that range from about 50 years to modern. Watersheds comprised of quaternary Yellowstone volcanics have a large volume of active groundwater circulation. A large, advecting groundwater field would be the dominant mechanism for mass and energy transport in the shallow crust of the Yellowstone volcanic plateau, and thus control the Yellowstone hydrothermal system. ?? 2009 Elsevier B.V.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Hydrology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.jhydrol.2009.12.037","issn":"00221694","usgsCitation":"Payton, G., Susong, D., Kip, S.D., and Heasler, H., 2010, Snowmelt hydrograph interpretation: Revealing watershed scale hydrologic characteristics of the Yellowstone volcanic plateau: Journal of Hydrology, v. 383, no. 3-4, p. 209-222, https://doi.org/10.1016/j.jhydrol.2009.12.037.","startPage":"209","endPage":"222","numberOfPages":"14","costCenters":[],"links":[{"id":245353,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":217407,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.jhydrol.2009.12.037"}],"volume":"383","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b91b8e4b08c986b319a67","contributors":{"authors":[{"text":"Payton, Gardner W.","contributorId":87395,"corporation":false,"usgs":true,"family":"Payton","given":"Gardner W.","affiliations":[],"preferred":false,"id":460474,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Susong, D. D.","contributorId":12868,"corporation":false,"usgs":true,"family":"Susong","given":"D. D.","affiliations":[],"preferred":false,"id":460473,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kip, Solomon D.","contributorId":107484,"corporation":false,"usgs":true,"family":"Kip","given":"Solomon","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":460475,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Heasler, H.","contributorId":7818,"corporation":false,"usgs":true,"family":"Heasler","given":"H.","email":"","affiliations":[],"preferred":false,"id":460472,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70037295,"text":"70037295 - 2010 - Tuning stochastic matrix models with hydrologic data to predict the population dynamics of a riverine fish","interactions":[],"lastModifiedDate":"2012-03-12T17:21:45","indexId":"70037295","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1450,"text":"Ecological Applications","active":true,"publicationSubtype":{"id":10}},"title":"Tuning stochastic matrix models with hydrologic data to predict the population dynamics of a riverine fish","docAbstract":"We developed stochastic matrix models to evaluate the effects of hydrologic alteration and variable mortality on the population dynamics of a lotie fish in a regulated river system. Models were applied to a representative lotic fish species, the flathead catfish (Pylodictis olivaris), for which two populations were examined: a native population from a regulated reach of the Coosa River (Alabama, USA) and an introduced population from an unregulated section of the Ocmulgee River (Georgia, USA). Size-classified matrix models were constructed for both populations, and residuals from catch-curve regressions were used as indices of year class strength (i.e., recruitment). A multiple regression model indicated that recruitment of flathead catfish in the Coosa River was positively related to the frequency of spring pulses between 283 and 566 m<sup>3</sup>/s. For the Ocmulgee River population, multiple regression models indicated that year class strength was negatively related to mean March discharge and positively related to June low flow. When the Coosa population was modeled to experience five consecutive years of favorable hydrologic conditions during a 50-year projection period, it exhibited a substantial spike in size and increased at an overall 0.2% annual rate. When modeled to experience five years of unfavorable hydrologic conditions, the Coosa population initially exhibited a decrease in size but later stabilized and increased at a 0.4% annual rate following the decline. When the Ocmulgee River population was modeled to experience five years of favorable conditions, it exhibited a substantial spike in size and increased at an overall 0.4% annual rate. After the Ocmulgee population experienced five years of unfavorable conditions, a sharp decline in population size was predicted. However, the population quickly recovered, with population size increasing at a 0.3% annual rate following the decline. In general, stochastic population growth in the Ocmulgee River was more erratic and variable than population growth in the Coosa River. We encourage ecologists to develop similar models for other lotic species, particularly in regulated river systems. Successful management of fish populations in regulated systems requires that we are able to predict how hydrology affects recruitment and will ultimately influence the population dynamics of fishes. ?? 2010 by the Ecological Society of America.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Ecological Applications","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1890/08-0305.1","issn":"10510761","usgsCitation":"Sakaris, P., and Irwin, E., 2010, Tuning stochastic matrix models with hydrologic data to predict the population dynamics of a riverine fish: Ecological Applications, v. 20, no. 2, p. 483-496, https://doi.org/10.1890/08-0305.1.","startPage":"483","endPage":"496","numberOfPages":"14","costCenters":[],"links":[{"id":216999,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1890/08-0305.1"},{"id":244907,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"20","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb8eae4b08c986b327b17","contributors":{"authors":[{"text":"Sakaris, P.C.","contributorId":18954,"corporation":false,"usgs":true,"family":"Sakaris","given":"P.C.","email":"","affiliations":[],"preferred":false,"id":460314,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Irwin, E.R.","contributorId":90269,"corporation":false,"usgs":true,"family":"Irwin","given":"E.R.","email":"","affiliations":[],"preferred":false,"id":460315,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70037258,"text":"70037258 - 2010 - Identifying sources of stream water sulfate after a summer drought in the Sleepers River watershed (Vermont, USA) using hydrological, chemical, and isotopic techniques","interactions":[],"lastModifiedDate":"2012-03-12T17:22:11","indexId":"70037258","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":835,"text":"Applied Geochemistry","active":true,"publicationSubtype":{"id":10}},"title":"Identifying sources of stream water sulfate after a summer drought in the Sleepers River watershed (Vermont, USA) using hydrological, chemical, and isotopic techniques","docAbstract":"In many forested headwater catchments, peak SO<sub>4</sub><sup>2 -</sup> concentrations in stream water occur in the late summer or fall following drought potentially resulting in episodic stream acidification. The sources of highly elevated stream water SO<sub>4</sub><sup>2 -</sup> concentrations were investigated in a first order stream at the Sleepers River watershed (Vermont, USA) after the particularly dry summer of 2001 using a combination of hydrological, chemical and isotopic approaches. Throughout the summer of 2001 SO<sub>4</sub><sup>2 -</sup> concentrations in stream water doubled from ???130 to 270 ??eq/L while flows decreased. Simultaneously increasing Na<sup>+</sup> and Ca<sup>2+</sup> concentrations and ??<sup>34</sup>S values increasing from +7??? towards those of bedrock S (???+10.5???) indicated that chemical weathering involving hydrolysis of silicates and oxidation of sulfide minerals in schists and phyllites was the cause for the initial increase in SO<sub>4</sub><sup>2 -</sup> concentrations. During re-wetting of the watershed in late September and early October of 2001, increasing stream flows were accompanied by decreasing Na<sup>+</sup> and Ca<sup>2+</sup> concentrations, but SO<sub>4</sub><sup>2 -</sup> concentrations continued to increase up to 568 ??eq/L, indicating that a major source of SO<sub>4</sub><sup>2 -</sup> in addition to bedrock weathering contributed to peak SO<sub>4</sub><sup>2 -</sup> concentrations. The further increase in SO<sub>4</sub><sup>2 -</sup> concentrations coincided with an abrupt decrease of ??<sup>34</sup>S values in stream water SO<sub>4</sub><sup>2 -</sup> from maximum values near +10??? to minimum values near -3???. Soil investigations revealed that some C-horizons in the Spodsols of the watershed contained secondary sulfide minerals with ??<sup>34</sup>S values near -22???. The shift to negative ??<sup>34</sup>S values of stream water SO<sub>4</sub><sup>2 -</sup> indicates that secondary sulfides in C-horizons were oxidized to SO<sub>4</sub><sup>2 -</sup> during the particularly dry summer of 2001. The newly formed SO<sub>4</sub><sup>2 -</sup> was transported to the streams during re-wetting of the watershed contributing ???60% of the SO<sub>4</sub><sup>2 -</sup> during peak concentrations in the stream water. Thereafter, the contribution of SO<sub>4</sub><sup>2 -</sup> from oxidation of secondary sulfides in C-horizons decreased rapidly and pedogenic SO<sub>4</sub><sup>2 -</sup> reemerged as a dominant SO<sub>4</sub><sup>2 -</sup> source in concert with decreasing SO<sub>4</sub><sup>2 -</sup> concentrations in spring of 2002. The study provides evidence that a quantitative assessment of the sources of stream water SO<sub>4</sub><sup>2 -</sup> in forested watersheds is possible by combining hydrological, chemical and isotopic techniques, provided that the isotopic compositions of all potential SO<sub>4</sub><sup>2 -</sup> sources are distinctly different. ?? 2010 Elsevier Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Applied Geochemistry","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.apgeochem.2010.02.007","issn":"08832927","usgsCitation":"Mayer, B., Shanley, J.B., Bailey, S., and Mitchell, M., 2010, Identifying sources of stream water sulfate after a summer drought in the Sleepers River watershed (Vermont, USA) using hydrological, chemical, and isotopic techniques: Applied Geochemistry, v. 25, no. 5, p. 747-754, https://doi.org/10.1016/j.apgeochem.2010.02.007.","startPage":"747","endPage":"754","numberOfPages":"8","costCenters":[],"links":[{"id":217371,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.apgeochem.2010.02.007"},{"id":245316,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"25","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3857e4b0c8380cd6152e","contributors":{"authors":[{"text":"Mayer, B.","contributorId":84538,"corporation":false,"usgs":true,"family":"Mayer","given":"B.","email":"","affiliations":[],"preferred":false,"id":460123,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Shanley, J. B.","contributorId":52226,"corporation":false,"usgs":true,"family":"Shanley","given":"J.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":460121,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bailey, S.W.","contributorId":29113,"corporation":false,"usgs":true,"family":"Bailey","given":"S.W.","email":"","affiliations":[],"preferred":false,"id":460120,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Mitchell, M.J.","contributorId":72940,"corporation":false,"usgs":true,"family":"Mitchell","given":"M.J.","email":"","affiliations":[],"preferred":false,"id":460122,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70037234,"text":"70037234 - 2010 - Antidepressant pharmaceuticals in two U.S. effluent-impacted streams: Occurrence and fate in water and sediment and selective uptake in fish neural tissue","interactions":[],"lastModifiedDate":"2018-10-10T12:20:34","indexId":"70037234","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1565,"text":"Environmental Science & Technology","onlineIssn":"1520-5851","printIssn":"0013-936X","active":true,"publicationSubtype":{"id":10}},"title":"Antidepressant pharmaceuticals in two U.S. effluent-impacted streams: Occurrence and fate in water and sediment and selective uptake in fish neural tissue","docAbstract":"<p>Antidepressant pharmaceuticals are widely prescribed in the United States; release of municipal wastewater effluent is a primary route introducing them to aquatic environments, where little is known about their distribution and fate. Water, bed sediment, and brain tissue from native white suckers (Catostomus commersoni)were collected upstream and atpoints progressively downstream from outfalls discharging to two effluentimpacted streams, Boulder Creek (Colorado) and Fourmile Creek (Iowa). A liquid chromatography/tandem mass spectrometry method was used to quantify antidepressants, including fluoxetine, norfluoxetine (degradate), sertraline, norsertraline (degradate), paroxetine, Citalopram, fluvoxamine, duloxetine, venlafaxine, and bupropion in all three sample matrices. Antidepressants were not present above the limit of quantitation in water samples upstream from the effluent outfalls but were present at points downstream at ng/L concentrations, even at the farthest downstream sampling site 8.4 km downstream from the outfall. The antidepressants with the highest measured concentrations in both streams were venlafaxine, bupropion, and Citalopram and typically were observed at concentrations of at least an order of magnitude greater than the more commonly investigated antidepressants fluoxetine and sertraline. Concentrations of antidepressants in bed sediment were measured at ng/g levels; venlafaxine and fluoxetine were the predominant chemicals observed. Fluoxetine, sertraline, and their degradates were the principal antidepressants observed in fish brain tissue, typically at low ng/g concentrations. Aqualitatively different antidepressant profile was observed in brain tissue compared to streamwater samples. This study documents that wastewater effluent can be a point source of antidepressants to stream ecosystems and that the qualitative composition of antidepressants in brain tissue from exposed fish differs substantially from the compositions observed in streamwater and sediment, suggesting selective uptake.</p>","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Science and Technology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"American Chemical Society","doi":"10.1021/es9022706","issn":"0013936X","usgsCitation":"Schultz, M., Furlong, E.T., Kolpin, D.W., Werner, S.L., Schoenfuss, H., Barber, L.B., Blazer, V., Norris, D., and Vajda, A., 2010, Antidepressant pharmaceuticals in two U.S. effluent-impacted streams: Occurrence and fate in water and sediment and selective uptake in fish neural tissue: Environmental Science & Technology, v. 44, no. 6, p. 1918-1925, https://doi.org/10.1021/es9022706.","productDescription":"8 p.","startPage":"1918","endPage":"1925","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":244904,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":216997,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1021/es9022706"}],"country":"United States","state":"Colorado, Iowa","volume":"44","issue":"6","noUsgsAuthors":false,"publicationDate":"2010-02-01","publicationStatus":"PW","scienceBaseUri":"5059ec62e4b0c8380cd4923f","contributors":{"authors":[{"text":"Schultz, M.M.","contributorId":18993,"corporation":false,"usgs":true,"family":"Schultz","given":"M.M.","email":"","affiliations":[],"preferred":false,"id":459998,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Furlong, Edward T. 0000-0002-7305-4603 efurlong@usgs.gov","orcid":"https://orcid.org/0000-0002-7305-4603","contributorId":740,"corporation":false,"usgs":true,"family":"Furlong","given":"Edward","email":"efurlong@usgs.gov","middleInitial":"T.","affiliations":[{"id":191,"text":"Colorado Water Science Center","active":true,"usgs":true},{"id":5046,"text":"Branch of Analytical Serv (NWQL)","active":true,"usgs":true},{"id":27111,"text":"National Water Quality Program","active":true,"usgs":true},{"id":503,"text":"Office of Water Quality","active":true,"usgs":true}],"preferred":true,"id":460005,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kolpin, Dana W. 0000-0002-3529-6505 dwkolpin@usgs.gov","orcid":"https://orcid.org/0000-0002-3529-6505","contributorId":1239,"corporation":false,"usgs":true,"family":"Kolpin","given":"Dana","email":"dwkolpin@usgs.gov","middleInitial":"W.","affiliations":[{"id":351,"text":"Iowa Water Science Center","active":true,"usgs":true}],"preferred":true,"id":460004,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Werner, Stephen L. slwerner@usgs.gov","contributorId":1199,"corporation":false,"usgs":true,"family":"Werner","given":"Stephen","email":"slwerner@usgs.gov","middleInitial":"L.","affiliations":[],"preferred":true,"id":460003,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Schoenfuss, H.L.","contributorId":103877,"corporation":false,"usgs":true,"family":"Schoenfuss","given":"H.L.","affiliations":[],"preferred":false,"id":460006,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Barber, Larry B. 0000-0002-0561-0831 lbbarber@usgs.gov","orcid":"https://orcid.org/0000-0002-0561-0831","contributorId":921,"corporation":false,"usgs":true,"family":"Barber","given":"Larry","email":"lbbarber@usgs.gov","middleInitial":"B.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":460002,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Blazer, Vicki S. 0000-0001-6647-9614 vblazer@usgs.gov","orcid":"https://orcid.org/0000-0001-6647-9614","contributorId":150384,"corporation":false,"usgs":true,"family":"Blazer","given":"Vicki S.","email":"vblazer@usgs.gov","affiliations":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"preferred":true,"id":460000,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Norris, D.O.","contributorId":58475,"corporation":false,"usgs":true,"family":"Norris","given":"D.O.","email":"","affiliations":[],"preferred":false,"id":460001,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Vajda, A.M.","contributorId":35961,"corporation":false,"usgs":true,"family":"Vajda","given":"A.M.","affiliations":[],"preferred":false,"id":459999,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}}
,{"id":70037232,"text":"70037232 - 2010 - Radar image and data fusion for natural hazards characterisation","interactions":[],"lastModifiedDate":"2017-04-05T16:38:44","indexId":"70037232","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2052,"text":"International Journal of Image and Data Fusion","active":true,"publicationSubtype":{"id":10}},"title":"Radar image and data fusion for natural hazards characterisation","docAbstract":"Fusion of synthetic aperture radar (SAR) images through interferometric, polarimetric and tomographic processing provides an all - weather imaging capability to characterise and monitor various natural hazards. This article outlines interferometric synthetic aperture radar (InSAR) processing and products and their utility for natural hazards characterisation, provides an overview of the techniques and applications related to fusion of SAR/InSAR images with optical and other images and highlights the emerging SAR fusion technologies. In addition to providing precise land - surface digital elevation maps, SAR - derived imaging products can map millimetre - scale elevation changes driven by volcanic, seismic and hydrogeologic processes, by landslides and wildfires and other natural hazards. With products derived from the fusion of SAR and other images, scientists can monitor the progress of flooding, estimate water storage changes in wetlands for improved hydrological modelling predictions and assessments of future flood impacts and map vegetation structure on a global scale and monitor its changes due to such processes as fire, volcanic eruption and deforestation. With the availability of SAR images in near real - time from multiple satellites in the near future, the fusion of SAR images with other images and data is playing an increasingly important role in understanding and forecasting natural hazards.","language":"English","publisher":"Taylor & Francis","doi":"10.1080/19479832.2010.499219","issn":"19479832","usgsCitation":"Lu, Z., Dzurisin, D., Jung, H., Zhang, J., and Zhang, Y., 2010, Radar image and data fusion for natural hazards characterisation: International Journal of Image and Data Fusion, v. 1, no. 3, p. 217-242, https://doi.org/10.1080/19479832.2010.499219.","productDescription":"26 p.","startPage":"217","endPage":"242","numberOfPages":"26","costCenters":[{"id":157,"text":"Cascades Volcano Observatory","active":false,"usgs":true},{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":245376,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":217429,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1080/19479832.2010.499219"}],"volume":"1","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a9383e4b0c8380cd80e78","contributors":{"authors":[{"text":"Lu, Zhong 0000-0001-9181-1818 lu@usgs.gov","orcid":"https://orcid.org/0000-0001-9181-1818","contributorId":901,"corporation":false,"usgs":true,"family":"Lu","given":"Zhong","email":"lu@usgs.gov","affiliations":[],"preferred":true,"id":459988,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dzurisin, Daniel 0000-0002-0138-5067 dzurisin@usgs.gov","orcid":"https://orcid.org/0000-0002-0138-5067","contributorId":538,"corporation":false,"usgs":true,"family":"Dzurisin","given":"Daniel","email":"dzurisin@usgs.gov","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":459987,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Jung, Hyung-Sup","contributorId":58382,"corporation":false,"usgs":true,"family":"Jung","given":"Hyung-Sup","email":"","affiliations":[],"preferred":false,"id":459990,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Zhang, Jixian","contributorId":36396,"corporation":false,"usgs":true,"family":"Zhang","given":"Jixian","affiliations":[],"preferred":false,"id":459989,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Zhang, Yonghong","contributorId":82563,"corporation":false,"usgs":true,"family":"Zhang","given":"Yonghong","email":"","affiliations":[],"preferred":false,"id":459991,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70037224,"text":"70037224 - 2010 - Assessment of basin-scale hydrologic impacts of CO2 sequestration, Illinois basin","interactions":[],"lastModifiedDate":"2012-03-12T17:22:11","indexId":"70037224","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2049,"text":"International Journal of Greenhouse Gas Control","active":true,"publicationSubtype":{"id":10}},"title":"Assessment of basin-scale hydrologic impacts of CO2 sequestration, Illinois basin","docAbstract":"Idealized, basin-scale sharp-interface models of CO2 injection were constructed for the Illinois basin. Porosity and permeability were decreased with depth within the Mount Simon Formation. Eau Claire confining unit porosity and permeability were kept fixed. We used 726 injection wells located near 42 power plants to deliver 80 million metric tons of CO2/year. After 100 years of continuous injection, deviatoric fluid pressures varied between 5.6 and 18 MPa across central and southern part of the Illinois basin. Maximum deviatoric pressure reached about 50% of lithostatic levels to the south. The pressure disturbance (&gt;0.03 MPa) propagated 10-25 km away from the injection wells resulting in significant well-well pressure interference. These findings are consistent with single-phase analytical solutions of injection. The radial footprint of the CO2 plume at each well was only 0.5-2 km after 100 years of injection. Net lateral brine displacement was insignificant due to increasing radial distance from injection well and leakage across the Eau Claire confining unit. On geologic time scales CO2 would migrate northward at a rate of about 6 m/1000 years. Because of paleo-seismic events in this region (M5.5-M7.5), care should be taken to avoid high pore pressures in the southern Illinois basin. ?? 2010 Elsevier Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"International Journal of Greenhouse Gas Control","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.ijggc.2010.04.004","issn":"17505836","usgsCitation":"Person, M., Banerjee, A., Rupp, J., Medina, C., Lichtner, P., Gable, C., Pawar, R., Celia, M., McIntosh, J., and Bense, V., 2010, Assessment of basin-scale hydrologic impacts of CO2 sequestration, Illinois basin: International Journal of Greenhouse Gas Control, v. 4, no. 5, p. 840-854, https://doi.org/10.1016/j.ijggc.2010.04.004.","startPage":"840","endPage":"854","numberOfPages":"15","costCenters":[],"links":[{"id":245251,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":217314,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.ijggc.2010.04.004"}],"volume":"4","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059ee21e4b0c8380cd49bab","contributors":{"authors":[{"text":"Person, M.","contributorId":20876,"corporation":false,"usgs":true,"family":"Person","given":"M.","email":"","affiliations":[],"preferred":false,"id":459961,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Banerjee, A.","contributorId":26411,"corporation":false,"usgs":true,"family":"Banerjee","given":"A.","email":"","affiliations":[],"preferred":false,"id":459962,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Rupp, J.","contributorId":78128,"corporation":false,"usgs":true,"family":"Rupp","given":"J.","email":"","affiliations":[],"preferred":false,"id":459967,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Medina, C.","contributorId":85440,"corporation":false,"usgs":true,"family":"Medina","given":"C.","email":"","affiliations":[],"preferred":false,"id":459968,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Lichtner, P.","contributorId":27719,"corporation":false,"usgs":true,"family":"Lichtner","given":"P.","email":"","affiliations":[],"preferred":false,"id":459963,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Gable, C.","contributorId":90572,"corporation":false,"usgs":true,"family":"Gable","given":"C.","email":"","affiliations":[],"preferred":false,"id":459969,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Pawar, R.","contributorId":108346,"corporation":false,"usgs":true,"family":"Pawar","given":"R.","email":"","affiliations":[],"preferred":false,"id":459970,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Celia, M.","contributorId":69394,"corporation":false,"usgs":true,"family":"Celia","given":"M.","affiliations":[],"preferred":false,"id":459965,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"McIntosh, J.","contributorId":58872,"corporation":false,"usgs":true,"family":"McIntosh","given":"J.","email":"","affiliations":[],"preferred":false,"id":459964,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Bense, V.","contributorId":70624,"corporation":false,"usgs":true,"family":"Bense","given":"V.","affiliations":[],"preferred":false,"id":459966,"contributorType":{"id":1,"text":"Authors"},"rank":10}]}}
,{"id":70037174,"text":"70037174 - 2010 - A new capture fraction method to map how pumpage affects surface water flow","interactions":[],"lastModifiedDate":"2012-03-12T17:22:07","indexId":"70037174","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1861,"text":"Ground Water","active":true,"publicationSubtype":{"id":10}},"title":"A new capture fraction method to map how pumpage affects surface water flow","docAbstract":"All groundwater pumped is balanced by removal of water somewhere, initially from storage in the aquifer and later from capture in the form of increase in recharge and decrease in discharge. Capture that results in a loss of water in streams, rivers, and wetlands now is a concern in many parts of the United States. Hydrologists commonly use analytical and numerical approaches to study temporal variations in sources of water to wells for select points of interest. Much can be learned about coupled surface/groundwater systems, however, by looking at the spatial distribution of theoretical capture for select times of interest. Development of maps of capture requires (1) a reasonably well-constructed transient or steady state model of an aquifer with head-dependent flow boundaries representing surface water features or evapotranspiration and (2) an automated procedure to run the model repeatedly and extract results, each time with a well in a different location. This paper presents new methods for simulating and mapping capture using three-dimensional groundwater flow models and presents examples from Arizona, Oregon, and Michigan. Journal compilation ?? 2010 National Ground Water Association. No claim to original US government works.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Ground Water","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1745-6584.2010.00701.x","issn":"0017467X","usgsCitation":"Leake, S.A., Reeves, H.W., and Dickinson, J., 2010, A new capture fraction method to map how pumpage affects surface water flow: Ground Water, v. 48, no. 5, p. 690-700, https://doi.org/10.1111/j.1745-6584.2010.00701.x.","startPage":"690","endPage":"700","numberOfPages":"11","costCenters":[],"links":[{"id":244962,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":217051,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1745-6584.2010.00701.x"}],"volume":"48","issue":"5","noUsgsAuthors":false,"publicationDate":"2010-08-19","publicationStatus":"PW","scienceBaseUri":"5059e49de4b0c8380cd4677f","contributors":{"authors":[{"text":"Leake, S. A.","contributorId":52164,"corporation":false,"usgs":true,"family":"Leake","given":"S.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":459734,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Reeves, H. W.","contributorId":53739,"corporation":false,"usgs":true,"family":"Reeves","given":"H.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":459735,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dickinson, J.E.","contributorId":28790,"corporation":false,"usgs":true,"family":"Dickinson","given":"J.E.","email":"","affiliations":[],"preferred":false,"id":459733,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70037143,"text":"70037143 - 2010 - Sediment discharges during storm flow from proximal urban and rural karst springs, central Kentucky, USA","interactions":[],"lastModifiedDate":"2012-03-12T17:22:11","indexId":"70037143","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2342,"text":"Journal of Hydrology","active":true,"publicationSubtype":{"id":10}},"title":"Sediment discharges during storm flow from proximal urban and rural karst springs, central Kentucky, USA","docAbstract":"Since the mid-1990s, various studies have addressed the timing of sediment transport to karst springs during storm flow or the composition and provenance of sediment discharged from springs. However, relatively few studies have focused on the flow thresholds at which sediment is mobilized or total sediment yields across various time scales. We examined each of these topics for a mainly urban spring (Blue Hole) and a rural spring (SP-2) in the Inner Bluegrass region of central Kentucky (USA). Suspended sediment consisted mostly of quartz silt and sand, with lesser amounts of calcite and organic matter. Total suspended sediment (TSS) values measured during storm flow were greater at SP-2 than at Blue Hole. By aggregating data from four storms during 2 years, we found that median suspended-sediment size jumped as Q exceeded ???0.5 m<sup>3</sup>/s for both springs. At Blue Hole, TSS tended to vary with Q and capacity approached 1 g/L, but no systematic relationship between TSS and Q was evident at SP-2. Sediment fluxes from the Blue Hole basin were ???2 orders of magnitude greater for storms in March (2002 and 2004) than September (2002 and 2003). In contrast, sediment fluxes from the SP-2 basin were of similar magnitude in September 2003 and March 2004. The overall range of area-normalized fluxes for both springs, 9.16 ?? 10<sup>-3</sup>-4.45 ?? 10<sup>2</sup> kg/(ha h), overlaps values reported for farm plots and a stream in the Inner Bluegrass region and for other spring basins in the eastern USA and western Europe. Sediment compositions, sizes, and responses to storms in the basins may differ because of land use (e.g., the extent of impervious cover in the Blue Hole basin), basin size (larger for Blue Hole), conduit architecture, which appears to be more complex in the Blue Hole basin, and the impoundment of SP-2, which may have promoted decadal-scale storage of sediment upgradient. ?? 2009 Elsevier B.V. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Hydrology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.jhydrol.2009.12.043","issn":"00221694","usgsCitation":"Reed, T., Todd, M.J., Fryar, A., Fogle, A., and Taraba, J., 2010, Sediment discharges during storm flow from proximal urban and rural karst springs, central Kentucky, USA: Journal of Hydrology, v. 383, no. 3-4, p. 280-290, https://doi.org/10.1016/j.jhydrol.2009.12.043.","startPage":"280","endPage":"290","numberOfPages":"11","costCenters":[],"links":[{"id":217048,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.jhydrol.2009.12.043"},{"id":244959,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"383","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b8984e4b08c986b316e00","contributors":{"authors":[{"text":"Reed, T.M.","contributorId":95840,"corporation":false,"usgs":true,"family":"Reed","given":"T.M.","email":"","affiliations":[],"preferred":false,"id":459590,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Todd, McFarland J.","contributorId":6340,"corporation":false,"usgs":true,"family":"Todd","given":"McFarland","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":459587,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Fryar, A.E.","contributorId":59928,"corporation":false,"usgs":true,"family":"Fryar","given":"A.E.","affiliations":[],"preferred":false,"id":459589,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Fogle, A.W.","contributorId":96051,"corporation":false,"usgs":true,"family":"Fogle","given":"A.W.","email":"","affiliations":[],"preferred":false,"id":459591,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Taraba, J.L.","contributorId":51062,"corporation":false,"usgs":true,"family":"Taraba","given":"J.L.","email":"","affiliations":[],"preferred":false,"id":459588,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70037093,"text":"70037093 - 2010 - Assessment of multiple sources of anthropogenic and natural chemical inputs to a morphologically complex basin, Lake Mead, USA","interactions":[],"lastModifiedDate":"2012-03-12T17:22:10","indexId":"70037093","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2996,"text":"Palaeogeography, Palaeoclimatology, Palaeoecology","printIssn":"0031-0182","active":true,"publicationSubtype":{"id":10}},"title":"Assessment of multiple sources of anthropogenic and natural chemical inputs to a morphologically complex basin, Lake Mead, USA","docAbstract":"Lakes with complex morphologies and with different geologic and land-use characteristics in their sub-watersheds could have large differences in natural and anthropogenic chemical inputs to sub-basins in the lake. Lake Mead in southern Nevada and northern Arizona, USA, is one such lake. To assess variations in chemical histories from 1935 to 1998 for major sub-basins of Lake Mead, four sediment cores were taken from three different parts of the reservoir (two from Las Vegas Bay and one from the Overton Arm and Virgin Basin) and analyzed for major and trace elements, radionuclides, and organic compounds. As expected, anthropogenic contaminant inputs are greatest to Las Vegas Bay reflecting inputs from the Las Vegas urban area, although concentrations are low compared to sediment quality guidelines and to other USA lakes. One exception to this pattern was higher Hg in the Virgin Basin core. The Virgin Basin core is located in the main body of the lake (Colorado River channel) and is influenced by the hydrology of the Colorado River, which changed greatly with completion of Glen Canyon Dam upstream in 1963. Major and trace elements in the core show pronounced shifts in the early 1960s and, in many cases, gradually return to concentrations more typical of pre-1960s by the 1980s and 1990s, after the filling of Lake Powell. The Overton Arm is the sub-basin least effected by anthropogenic contaminant inputs but has a complex 137Cs profile with a series of large peaks and valleys over the middle of the core, possibly reflecting fallout from nuclear tests in the 1950s at the Nevada Test Site. The 137Cs profile suggests a much greater sedimentation rate during testing which we hypothesize results from greatly increased dust fall on the lake and Virgin and Muddy River watersheds. The severe drought in the southwestern USA during the 1950s might also have played a role in variations in sedimentation rate in all of the cores. ?? 2009.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Palaeogeography, Palaeoclimatology, Palaeoecology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.palaeo.2009.03.017","issn":"00310182","usgsCitation":"Rosen, M.R., and Van Metre, P., 2010, Assessment of multiple sources of anthropogenic and natural chemical inputs to a morphologically complex basin, Lake Mead, USA: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 294, no. 1-2, p. 30-43, https://doi.org/10.1016/j.palaeo.2009.03.017.","startPage":"30","endPage":"43","numberOfPages":"14","costCenters":[],"links":[{"id":217216,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.palaeo.2009.03.017"},{"id":245143,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"294","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059ee41e4b0c8380cd49c64","contributors":{"authors":[{"text":"Rosen, Michael R.","contributorId":43096,"corporation":false,"usgs":true,"family":"Rosen","given":"Michael","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":459338,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Van Metre, P. C.","contributorId":92999,"corporation":false,"usgs":true,"family":"Van Metre","given":"P. C.","affiliations":[],"preferred":false,"id":459339,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70037085,"text":"70037085 - 2010 - Response of a macrotidal estuary to changes in anthropogenic mercury loading between 1850 and 2000","interactions":[],"lastModifiedDate":"2018-10-10T09:59:54","indexId":"70037085","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1565,"text":"Environmental Science & Technology","onlineIssn":"1520-5851","printIssn":"0013-936X","active":true,"publicationSubtype":{"id":10}},"title":"Response of a macrotidal estuary to changes in anthropogenic mercury loading between 1850 and 2000","docAbstract":"<p>Methylmercury (MeHg) bioaccumulation in marine food webs poses risks to fish-consuming populations and wildlife. Here we develop and test an estuarine mercury cycling model for a coastal embayment of the Bay of Fundy, Canada. Mass budget calculations reveal that MeHg fluxes into sediments from settling solids exceed losses from sediment-to-water diffusion and resuspension. Although measured methylation rates in benthic sediments are high, rapid demethylation results in negligible net in situ production of MeHg. These results suggest that inflowing fluvial and tidal waters, rather than coastal sediments, are the dominant MeHg sources for pelagic marine food webs in this region. Model simulations show water column MeHg concentrations peaked in the 1960s and declined by almost 40% by the year 2000. Water column MeHg concentrations respond rapidly to changes in mercury inputs, reaching 95% of steady state in approximately 2 months. Thus, MeHg concentrations in pelagic organisms can be expected to respond rapidly to mercury loading reductions achieved through regulatory controls. In contrast MeHg concentrations in sediments have steadily increased since the onset of industrialization despite recent decreases in total mercury loading. Benthic food web MeHg concentrations are likely to continue to increase over the next several decades at present-day mercury emissions levels because the deep active sediment layer in this system contains a large amount of legacy mercury and requires hundreds of years to reach steady state with inputs.</p>","language":"English","publisher":"American Chemical Society","doi":"10.1021/es9032524","issn":"0013936X","usgsCitation":"Sunderl, E., Dalziel, J., Heyes, A., Branfireun, B., Krabbenhoft, D., and Gobas, F., 2010, Response of a macrotidal estuary to changes in anthropogenic mercury loading between 1850 and 2000: Environmental Science & Technology, v. 44, no. 5, p. 1698-1704, https://doi.org/10.1021/es9032524.","productDescription":"7 p.","startPage":"1698","endPage":"1704","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":245020,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":217103,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1021/es9032524"}],"volume":"44","issue":"5","noUsgsAuthors":false,"publicationDate":"2010-02-01","publicationStatus":"PW","scienceBaseUri":"505aaa28e4b0c8380cd86196","contributors":{"authors":[{"text":"Sunderl, E.M.","contributorId":9088,"corporation":false,"usgs":true,"family":"Sunderl","given":"E.M.","email":"","affiliations":[],"preferred":false,"id":459306,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dalziel, J.","contributorId":64484,"corporation":false,"usgs":true,"family":"Dalziel","given":"J.","email":"","affiliations":[],"preferred":false,"id":459308,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Heyes, A.","contributorId":58051,"corporation":false,"usgs":true,"family":"Heyes","given":"A.","email":"","affiliations":[],"preferred":false,"id":459307,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Branfireun, B.A.","contributorId":92843,"corporation":false,"usgs":true,"family":"Branfireun","given":"B.A.","email":"","affiliations":[],"preferred":false,"id":459310,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Krabbenhoft, David P. 0000-0003-1964-5020 dpkrabbe@usgs.gov","orcid":"https://orcid.org/0000-0003-1964-5020","contributorId":118001,"corporation":false,"usgs":true,"family":"Krabbenhoft","given":"David P.","email":"dpkrabbe@usgs.gov","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true},{"id":677,"text":"Wisconsin Water Science Center","active":true,"usgs":true}],"preferred":false,"id":459309,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Gobas, F.A.P.C.","contributorId":8700,"corporation":false,"usgs":true,"family":"Gobas","given":"F.A.P.C.","email":"","affiliations":[],"preferred":false,"id":459305,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70037057,"text":"70037057 - 2010 - Measurement and modeling of polychlorinated biphenyl bioaccumulation from sediment for the marine polychaete neanthes arenaceodentata and response to sorbent amendment","interactions":[],"lastModifiedDate":"2018-10-10T10:00:31","indexId":"70037057","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1565,"text":"Environmental Science & Technology","onlineIssn":"1520-5851","printIssn":"0013-936X","active":true,"publicationSubtype":{"id":10}},"title":"Measurement and modeling of polychlorinated biphenyl bioaccumulation from sediment for the marine polychaete neanthes arenaceodentata and response to sorbent amendment","docAbstract":"<p>Bioaccumulation rates of polychlorinated biphenyls (PCBs) for the marine polychaete Neanthes arenaceodentata were characterized, including PCB uptake rates from water and sediment, and the effect of sorbent amendment to the sediment on PCB bioavailability, organism growth, and lipid content. Physiological parameters were incorporated into a biodynamic model to predict contaminant uptake. The results indicate rapid PCB uptake from contaminated sediment and significant organism growth dilution during time-series exposure studies. PCB uptake from the aqueous phase accounted for less than 3% of the total uptake for this deposit-feeder. Proportional increase of gut residence time and assimilation efficiency as a consequence of the organism's growth was assessed by PCB uptake and a reactor theory model of gut architecture. Pulse-chase feeding and multilabeled stable isotope tracing techniques proved high sediment ingestion rates (i.e., 6?10 times of dry body weight per day) indicating that such deposit-feeders are promising biological indicators for sediment risk assessment. Activated carbon amendment reduced PCB uptake by 95% in laboratory experiments with no observed adverse growth effects on the marine polychaete. Biodynamic modeling explained the observed PCB body burdens for N. arenaceodentata, with and without sorbent amendment.</p>","language":"English","publisher":"ACS","doi":"10.1021/es901632e","issn":"0013936X","usgsCitation":"Janssen, E., Croteau, M.N., Luoma, S., and Luthy, R., 2010, Measurement and modeling of polychlorinated biphenyl bioaccumulation from sediment for the marine polychaete neanthes arenaceodentata and response to sorbent amendment: Environmental Science & Technology, v. 44, no. 8, p. 2857-2863, https://doi.org/10.1021/es901632e.","productDescription":"7 p.","startPage":"2857","endPage":"2863","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":245080,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":217159,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1021/es901632e"}],"volume":"44","issue":"8","noUsgsAuthors":false,"publicationDate":"2009-09-01","publicationStatus":"PW","scienceBaseUri":"505a52ebe4b0c8380cd6c76b","contributors":{"authors":[{"text":"Janssen, E.M.-L.","contributorId":103121,"corporation":false,"usgs":true,"family":"Janssen","given":"E.M.-L.","email":"","affiliations":[],"preferred":false,"id":459181,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Croteau, Marie Noele 0000-0003-0346-3580 mcroteau@usgs.gov","orcid":"https://orcid.org/0000-0003-0346-3580","contributorId":895,"corporation":false,"usgs":true,"family":"Croteau","given":"Marie","email":"mcroteau@usgs.gov","middleInitial":"Noele","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true},{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true}],"preferred":true,"id":459179,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Luoma, S. N.","contributorId":86353,"corporation":false,"usgs":true,"family":"Luoma","given":"S. N.","affiliations":[],"preferred":false,"id":459180,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Luthy, R.G.","contributorId":36335,"corporation":false,"usgs":true,"family":"Luthy","given":"R.G.","email":"","affiliations":[],"preferred":false,"id":459178,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
]}