{"pageNumber":"352","pageRowStart":"8775","pageSize":"25","recordCount":16446,"records":[{"id":25540,"text":"wri994138 - 2000 - Geology, hydrology, and ground-water quality of the upper part of the Galena-Platteville aquifer at the Parson's Casket Hardware Superfund site in Belvidere, Illinois","interactions":[],"lastModifiedDate":"2019-10-15T11:13:45","indexId":"wri994138","displayToPublicDate":"2001-02-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"99-4138","title":"Geology, hydrology, and ground-water quality of the upper part of the Galena-Platteville aquifer at the Parson's Casket Hardware Superfund site in Belvidere, Illinois","docAbstract":"<p>The geology, hydrology, hydraulic properties, and distribution of contaminants in the upper part of the Galena-Platteville aquifer at the Parson's Casket Hardware Superfund site in Belvidere, Illinois, were characterized on the basis of data collected from boreholes by use of packer assemblies, flowmeter logging, and borehole ground-penetrating radar. Four permeable intervals were identified in the upper part of the Galena-Platteville aquifer: (1) a shallow, subhorizontal fracture from 37 to 40 feet below land surface; (2) an inclined fracture from 75 to 85 feet; (3) a shallow, vuggy interval from 90 to 100 feet; and (4) a deep, vuggy interval from about 140 to 180 feet. The calculated horizontal hydraulic conductivity of the two fractured intervals exceeds 50 feet per day and is more than an order of magnitude greater than that of the vuggy intervals. Water levels in the Galena-Platteville aquifer respond to pumping cycles in the Belvidere municipal-supply wells below a depth of at least 180 feet. </p><p>Results of flowmeter logging and constant discharge aquifer testing indicate that the shallow, subhorizontal fracture is hydraulically connected to the overlying unconsolidated aquifer. Discrete inclined fractures are the primary conduits for vertical ground-water flow between the permeable units within the upper part of the Galena-Platteville aquifer, and perhaps for flow to the deeper parts of the aquifer. The inclined fractures may become less permeable with depth. </p><p>A maximum effective porosity in the deep, vuggy interval of 8.8 percent was calculated from hydrologic and borehole radar-tomography data collected during tracer testing. The average maximum horizontal ground-water velocity through this interval was calculated at 21.4 feet per day using cross-hole radar tomography under a hydraulic gradient of 1.25 feet per foot. </p><p>Trichloroethene, trichloroethane, and tetrachloroethene are the primary volatile organic compounds detected in the aquifer. There is no distinct pattern of the concentration of volatile organic compounds with depth; however, the highest concentrations tend to be present in the shallow part of the aquifer at the site. Movement of organic compounds through vertical fractures may account for their presence in the deeper parts of the aquifer.</p>","language":"English","publisher":"U.S. Dept. of the Interior, U.S. Geological Survey ;\r\nBranch of Information Services [distributor],","doi":"10.3133/wri994138","usgsCitation":"Kay, R.T., Yeskis, D., Lane, J., Mills, P., Joesten, P., Cygan, G., and Ursic, J., 2000, Geology, hydrology, and ground-water quality of the upper part of the Galena-Platteville aquifer at the Parson's Casket Hardware Superfund site in Belvidere, Illinois: U.S. Geological Survey Water-Resources Investigations Report 99-4138, v, 43 p., https://doi.org/10.3133/wri994138.","productDescription":"v, 43 p.","costCenters":[{"id":493,"text":"Office of Ground Water","active":true,"usgs":true}],"links":[{"id":95535,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1999/4138/report.pdf","size":"5526","linkFileType":{"id":1,"text":"pdf"}},{"id":157930,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1999/4138/report-thumb.jpg"}],"country":"United States","state":"Illinois","city":"Belvidere","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -88.83807241916656,\n              42.26712715934989\n            ],\n            [\n              -88.83430659770966,\n              42.26712715934989\n            ],\n            [\n              -88.83430659770966,\n              42.26919934059126\n            ],\n            [\n              -88.83807241916656,\n              42.26919934059126\n            ],\n            [\n              -88.83807241916656,\n              42.26712715934989\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac9e4b07f02db67c635","contributors":{"authors":[{"text":"Kay, Robert T. 0000-0002-6281-8997 rtkay@usgs.gov","orcid":"https://orcid.org/0000-0002-6281-8997","contributorId":1122,"corporation":false,"usgs":true,"family":"Kay","given":"Robert","email":"rtkay@usgs.gov","middleInitial":"T.","affiliations":[{"id":344,"text":"Illinois Water Science Center","active":true,"usgs":true}],"preferred":true,"id":194107,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Yeskis, D.J.","contributorId":105334,"corporation":false,"usgs":true,"family":"Yeskis","given":"D.J.","affiliations":[],"preferred":false,"id":194113,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lane, J.W. Jr.","contributorId":66723,"corporation":false,"usgs":true,"family":"Lane","given":"J.W.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":194111,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Mills, P. C.","contributorId":69117,"corporation":false,"usgs":true,"family":"Mills","given":"P. C.","affiliations":[],"preferred":false,"id":194112,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Joesten, P. K.","contributorId":62818,"corporation":false,"usgs":true,"family":"Joesten","given":"P. K.","affiliations":[],"preferred":false,"id":194110,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Cygan, G.L.","contributorId":56379,"corporation":false,"usgs":true,"family":"Cygan","given":"G.L.","email":"","affiliations":[],"preferred":false,"id":194109,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Ursic, J.R.","contributorId":9518,"corporation":false,"usgs":true,"family":"Ursic","given":"J.R.","email":"","affiliations":[],"preferred":false,"id":194108,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":4853,"text":"ds62A - 2000 - Global GIS database. Digital atlas of Central and South America","interactions":[],"lastModifiedDate":"2026-04-10T15:09:46.570036","indexId":"ds62A","displayToPublicDate":"2001-02-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":310,"text":"Data Series","code":"DS","onlineIssn":"2327-638X","printIssn":"2327-0271","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"62","chapter":"A","title":"Global GIS database. Digital atlas of Central and South America","docAbstract":"This CD-ROM contains a digital atlas of the countries of Central and South America. This atlas is part of a global database compiled from USGS and other data sources at the nominal scale of 1:1 million and is intended to be used as a regional-scale reference and analytical tool by government officials, researchers, the private sector, and the general public. The atlas includes free GIS software or may also be used with ESRI's ArcView software. Customized ArcView tools, specifically designed to make the atlas easier to use, are also included. The atlas contains the following datasets: country political boundaries, digital shaded relief map, elevation, slope, hydrology, locations of cities and towns, airfields, roads, railroads, utility lines, population density, geology, ecological regions, historical seismicity, volcanoes, ore deposits, oil and gas fields, climate data, landcover, vegetation index, and lights at night.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ds62A","isbn":"0607959533","usgsCitation":"Hearn, Hare, T., Schruben, P., Sherrill, D., LaMar, C., and Tsushima, P., 2000, Global GIS database. Digital atlas of Central and South America: U.S. Geological Survey Data Series 62, 1 computer optical disc ;4 3/4 in., https://doi.org/10.3133/ds62A.","productDescription":"1 CD-ROM","costCenters":[{"id":242,"text":"Eastern Geographic Science Center","active":true,"usgs":true}],"links":[{"id":502682,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/ds/0062/USGS_DDS62A.zip","text":"CD-ROM","linkFileType":{"id":6,"text":"zip"}},{"id":139937,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.er.usgs.gov/thumbnails/usgs_thumb.jpg"}],"scale":"1000000","otherGeospatial":"Central America, South America","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -63.6328125,\n              -54.36775852406839\n            ],\n            [\n              -60.8203125,\n              -43.32517767999294\n            ],\n            [\n              -37.96875,\n              -22.268764039073968\n            ],\n            [\n              -32.6953125,\n              -4.565473550710278\n            ],\n            [\n              -68.5546875,\n              14.604847155053898\n            ],\n            [\n              -76.9921875,\n              12.554563528593656\n            ],\n            [\n              -87.5390625,\n              22.59372606392931\n            ],\n            [\n              -92.10937499999999,\n              14.26438308756265\n            ],\n            [\n              -87.5390625,\n              9.102096738726456\n            ],\n            [\n              -78.75,\n              4.214943141390651\n            ],\n            [\n              -84.375,\n              -2.811371193331128\n            ],\n            [\n              -79.453125,\n              -15.28418511407642\n            ],\n            [\n              -73.125,\n              -19.973348786110602\n            ],\n            [\n              -76.2890625,\n              -44.33956524809713\n            ],\n            [\n              -75.9375,\n              -53.748710796898976\n            ],\n            [\n              -67.8515625,\n              -56.75272287205735\n            ],\n            [\n              -63.6328125,\n              -54.36775852406839\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4abee4b07f02db674efe","contributors":{"authors":[{"text":"Hearn, Jr. phearn@usgs.gov","contributorId":1950,"corporation":false,"usgs":true,"family":"Hearn","suffix":"Jr.","email":"phearn@usgs.gov","affiliations":[{"id":242,"text":"Eastern Geographic Science Center","active":true,"usgs":true}],"preferred":false,"id":149939,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hare, T.","contributorId":34503,"corporation":false,"usgs":true,"family":"Hare","given":"T.","email":"","affiliations":[],"preferred":false,"id":149942,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Schruben, P.","contributorId":93039,"corporation":false,"usgs":true,"family":"Schruben","given":"P.","affiliations":[],"preferred":false,"id":149943,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Sherrill, D.","contributorId":103669,"corporation":false,"usgs":true,"family":"Sherrill","given":"D.","email":"","affiliations":[],"preferred":false,"id":149944,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"LaMar, C.","contributorId":18353,"corporation":false,"usgs":true,"family":"LaMar","given":"C.","email":"","affiliations":[],"preferred":false,"id":149940,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Tsushima, P.","contributorId":28968,"corporation":false,"usgs":true,"family":"Tsushima","given":"P.","email":"","affiliations":[],"preferred":false,"id":149941,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70073340,"text":"70073340 - 2000 - Quantifying hydrologic interactions between streams and their subsurface hyporheic zones","interactions":[],"lastModifiedDate":"2018-09-10T07:41:01","indexId":"70073340","displayToPublicDate":"2001-01-01T11:06:05","publicationYear":"2000","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Quantifying hydrologic interactions between streams and their subsurface hyporheic zones","docAbstract":"<p>No abstract available.&nbsp;</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Streams and ground waters","largerWorkSubtype":{"id":4,"text":"Other Government Series"},"language":"English","publisher":"Academic Press","publisherLocation":"San Diego, CA","doi":"10.1016/B978-012389845-6/50002-8","usgsCitation":"Harvey, J.W., and Wagner, B.J., 2000, Quantifying hydrologic interactions between streams and their subsurface hyporheic zones, chap. <i>of</i> Streams and ground waters, p. 3-44, https://doi.org/10.1016/B978-012389845-6/50002-8.","productDescription":"42 p.","startPage":"3","endPage":"44","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":281163,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd6ec5e4b0b29085105fd9","contributors":{"editors":[{"text":"Jones, Jeremy B.","contributorId":113650,"corporation":false,"usgs":true,"family":"Jones","given":"Jeremy","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":509706,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Mulholland, Patrick J.","contributorId":112634,"corporation":false,"usgs":false,"family":"Mulholland","given":"Patrick","email":"","middleInitial":"J.","affiliations":[{"id":32968,"text":"Oak Ridge National Laboratory, Oak Ridge, TN","active":true,"usgs":false}],"preferred":false,"id":509705,"contributorType":{"id":2,"text":"Editors"},"rank":2}],"authors":[{"text":"Harvey, Judson W. 0000-0002-2654-9873 jwharvey@usgs.gov","orcid":"https://orcid.org/0000-0002-2654-9873","contributorId":1796,"corporation":false,"usgs":true,"family":"Harvey","given":"Judson","email":"jwharvey@usgs.gov","middleInitial":"W.","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":488605,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wagner, Brian J. bjwagner@usgs.gov","contributorId":427,"corporation":false,"usgs":true,"family":"Wagner","given":"Brian","email":"bjwagner@usgs.gov","middleInitial":"J.","affiliations":[],"preferred":true,"id":488604,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":68033,"text":"ha746C - 2000 - Geohydrology of the shallow aquifers in the Fort Lupton-Gilcrest area, Colorado","interactions":[],"lastModifiedDate":"2021-11-02T19:30:52.629562","indexId":"ha746C","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":318,"text":"Hydrologic Atlas","code":"HA","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"746","chapter":"C","title":"Geohydrology of the shallow aquifers in the Fort Lupton-Gilcrest area, Colorado","docAbstract":"<p>Urban areas commonly rely on ground water for at least part of the municipal water supply, and as population increases, urban areas expand and require larger volumes of water. However, the expansion of an urban area can reduce ground-water availability. This may occur through processes of depletion (withdrawal of most of the available ground water), degradation (chemicals used in the urban area seep into the ground and contaminate the ground water), and preemption (cost or restrictions on pumping ground water from under extensively urbanized areas may be prohibitive). Thus, a vital natural resource needed to support the growth of an urban area and its infrastructure can become less available because of growth itself.<br />The diminished availability of natural resources caused by expansion of urban areas is not unique to water resources. For example, large volumes of aggregate (sand and gravel) are used in concrete and asphalt to build and maintain the infrastructure (buildings, roads, airports, and so forth) of an urban area. Yet, mining of aggregate commonly is preempted by urban expansion; for example, it cannot be mined from under a subdivision. Energy resources such as coal, oil, and natural gas likewise are critical to the growth and existence of an urban area but may become less available as an urban area expands and preempts mining and drilling.<br />In 1996, the U.S. Geological Survey began work on a national initiative designed to provide information on the availability of those natural resources (water, minerals, energy, and biota) that are critical to maintaining the Nation's infrastructure or that may become less available because of urban expansion. The initiative began with a 3-year demonstration project to develop procedures for assessing resources and methods for interpreting and publishing information in digital and traditional paper formats. The Front Range urban corridor of Colorado was chosen as the demonstration area (fig. 1), and the project was titled the Front Range Infrastructure Resources Project (FRIRP). This report and those of Robson (1996), Robson and others (1998), and Robson and others (2000a, 2000b, 2000c) are the results of FRIRP water-resources investigations; reports pertaining to geology, minerals, energy, biota, and cartography of the FRIRP are published separately. The water resources studies of the FRIRP were undertaken in cooperation with the Colorado Department of Natural Resources, Division of Water Resources, and the Colorado Water Conservation Board.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ha746C","isbn":"0607953489","usgsCitation":"Robson, S.G., Heiny, J.S., and Arnold, L.R., 2000, Geohydrology of the shallow aquifers in the Fort Lupton-Gilcrest area, Colorado: U.S. Geological Survey Hydrologic Atlas 746, 5 Plates: 35.50 × 46.00 inches, https://doi.org/10.3133/ha746C.","productDescription":"5 Plates: 35.50 × 46.00 inches","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":91832,"rank":404,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/ha/746c/plate-3.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":89279,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/ha/746c/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":89280,"rank":401,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/ha/746c/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":89281,"rank":403,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/ha/746c/plate-4.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":89282,"rank":404,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/ha/746c/plate-5.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":185719,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":391278,"rank":7,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_39199.htm"}],"scale":"50000","country":"United States","state":"Colorado","otherGeospatial":"Fort Lupton - Gilcrest area","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -104.941,39.914], [ -104.941,40.348 ], [ -104.601,40.348 ], [ -104.601,39.914 ], [ -104.941,39.914 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b1ae4b07f02db6a8812","contributors":{"authors":[{"text":"Robson, Stanley G.","contributorId":73187,"corporation":false,"usgs":true,"family":"Robson","given":"Stanley","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":277534,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Heiny, Janet S.","contributorId":93468,"corporation":false,"usgs":true,"family":"Heiny","given":"Janet","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":277536,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Arnold, L. R.","contributorId":92738,"corporation":false,"usgs":true,"family":"Arnold","given":"L.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":277535,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":26117,"text":"wri964106 - 2000 - Hydrology of the Columbia Plateau regional aquifer system, Washington, Oregon, and Idaho","interactions":[],"lastModifiedDate":"2012-02-02T00:08:31","indexId":"wri964106","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"96-4106","title":"Hydrology of the Columbia Plateau regional aquifer system, Washington, Oregon, and Idaho","language":"ENGLISH","publisher":"U.S. Department of the Interior, U.S. Geological Survey ;\r\nInformation Services [distributor],","doi":"10.3133/wri964106","usgsCitation":"Bauer, H.H., and Hansen, A.J., 2000, Hydrology of the Columbia Plateau regional aquifer system, Washington, Oregon, and Idaho: U.S. Geological Survey Water-Resources Investigations Report 96-4106, iv, 61 p. :ill., col. maps ;28 cm., https://doi.org/10.3133/wri964106.","productDescription":"iv, 61 p. :ill., col. maps ;28 cm.","costCenters":[],"links":[{"id":118693,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1996/4106/report-thumb.jpg"},{"id":54918,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1996/4106/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a13e4b07f02db601f2a","contributors":{"authors":[{"text":"Bauer, H. H.","contributorId":85142,"corporation":false,"usgs":true,"family":"Bauer","given":"H.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":195842,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hansen, Arnold J. Jr.","contributorId":84336,"corporation":false,"usgs":true,"family":"Hansen","given":"Arnold","suffix":"Jr.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":195841,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":21939,"text":"ofr98654 - 2000 - Metal exposure to a benthic invertebrate, Hydropsyche californica, in the Sacramento River down stream of Keswick Reservoir, California","interactions":[],"lastModifiedDate":"2022-09-16T20:00:30.213577","indexId":"ofr98654","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"98-654","displayTitle":"Metal exposure to a benthic invertebrate, <i>Hydropsyche californica</i>, in the Sacramento River down stream of Keswick Reservoir, California","title":"Metal exposure to a benthic invertebrate, Hydropsyche californica, in the Sacramento River down stream of Keswick Reservoir, California","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr98654","usgsCitation":"Cain, D.J., Carter, J.L., Fend, S.V., Luoma, S.N., Alpers, C.N., and Taylor, H.E., 2000, Metal exposure to a benthic invertebrate, Hydropsyche californica, in the Sacramento River down stream of Keswick Reservoir, California: U.S. Geological Survey Open-File Report 98-654, iv, 20 p., https://doi.org/10.3133/ofr98654.","productDescription":"iv, 20 p.","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":406880,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_31467.htm","linkFileType":{"id":5,"text":"html"}},{"id":51414,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1998/0654/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":153679,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1998/0654/report-thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"Keswick Reservoir, Sacramento River","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -122.45979309082031,\n              40.508056667997295\n            ],\n            [\n              -122.34992980957031,\n              40.508056667997295\n            ],\n            [\n              -122.34992980957031,\n              40.62750334315296\n            ],\n            [\n              -122.45979309082031,\n              40.62750334315296\n            ],\n            [\n              -122.45979309082031,\n              40.508056667997295\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a4be4b07f02db625947","contributors":{"authors":[{"text":"Cain, Daniel J. 0000-0002-3443-0493 djcain@usgs.gov","orcid":"https://orcid.org/0000-0002-3443-0493","contributorId":1784,"corporation":false,"usgs":true,"family":"Cain","given":"Daniel","email":"djcain@usgs.gov","middleInitial":"J.","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":186329,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Carter, James L. 0000-0002-0104-9776 jlcarter@usgs.gov","orcid":"https://orcid.org/0000-0002-0104-9776","contributorId":3278,"corporation":false,"usgs":true,"family":"Carter","given":"James","email":"jlcarter@usgs.gov","middleInitial":"L.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":186331,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Fend, Steven V. 0000-0002-4638-6602 svfend@usgs.gov","orcid":"https://orcid.org/0000-0002-4638-6602","contributorId":3591,"corporation":false,"usgs":true,"family":"Fend","given":"Steven","email":"svfend@usgs.gov","middleInitial":"V.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":186332,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Luoma, Samuel N. 0000-0001-5443-5091 snluoma@usgs.gov","orcid":"https://orcid.org/0000-0001-5443-5091","contributorId":2287,"corporation":false,"usgs":true,"family":"Luoma","given":"Samuel","email":"snluoma@usgs.gov","middleInitial":"N.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":186330,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Alpers, Charles N. 0000-0001-6945-7365 cnalpers@usgs.gov","orcid":"https://orcid.org/0000-0001-6945-7365","contributorId":411,"corporation":false,"usgs":true,"family":"Alpers","given":"Charles","email":"cnalpers@usgs.gov","middleInitial":"N.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":186327,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Taylor, Howard E. hetaylor@usgs.gov","contributorId":1551,"corporation":false,"usgs":true,"family":"Taylor","given":"Howard","email":"hetaylor@usgs.gov","middleInitial":"E.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":186328,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":24888,"text":"ofr00315 - 2000 - Graphical user interface for MODFLOW, Version 4","interactions":[],"lastModifiedDate":"2020-02-26T19:18:24","indexId":"ofr00315","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2000-315","title":"Graphical user interface for MODFLOW, Version 4","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr00315","issn":"0094-9140","usgsCitation":"Winston, R.B., 2000, Graphical user interface for MODFLOW, Version 4: U.S. Geological Survey Open-File Report 2000-315, 27 p. , https://doi.org/10.3133/ofr00315.","productDescription":"27 p. ","numberOfPages":"27","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":438894,"rank":301,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/P9Y29U1H","text":"USGS data release","linkHelpText":"GW_Chart version 1.30"},{"id":157245,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/2000/0315/report-thumb.jpg"},{"id":53876,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2000/0315/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4abbe4b07f02db672391","contributors":{"authors":[{"text":"Winston, Richard B. 0000-0002-6287-8834 rbwinst@usgs.gov","orcid":"https://orcid.org/0000-0002-6287-8834","contributorId":3567,"corporation":false,"usgs":true,"family":"Winston","given":"Richard","email":"rbwinst@usgs.gov","middleInitial":"B.","affiliations":[{"id":37778,"text":"WMA - Integrated Modeling and Prediction Division","active":true,"usgs":true},{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":192746,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":38097,"text":"ofr0050 - 2000 - The Phosphoria Formation at the Hot Springs Mine in Southeast Idaho: A source of selenium and other trace elements to surface water, ground water, vegetation, and biota","interactions":[],"lastModifiedDate":"2020-02-24T06:29:42","indexId":"ofr0050","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2000-50","title":"The Phosphoria Formation at the Hot Springs Mine in Southeast Idaho: A source of selenium and other trace elements to surface water, ground water, vegetation, and biota","docAbstract":"<p>Major-element oxides and trace elements in the Phosphoria Formation at the Hot Springs Mine, Idaho were determined by a series of techniques. In this report, we examine the distribution of trace elements between the different solid components aluminosilicates, apatite, organic matter, opal, calcite, and dolomite that largely make up the rocks. High concentrations of several trace elements throughout the deposit, for example, As, Cd, Se, Tl, and U, at this and previously examined sites have raised concern about their introduction into the environment via weathering and the degree to which mining and the disposal of mined waste rock from this deposit might be accelerating that process. The question addressed here is how might the partitioning of trace elements between these solid host components influence the introduction of trace elements into ground water, surface water, and eventually biota, via weathering? In the case of Se, it is partitioned into components that are quite labile under the oxidizing conditions of subaerial weathering. As a result, it is widely distributed throughout the environment. Its concentration exceeds the level of concern for protection of wildlife at virtually every trophic level. </p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr0050","issn":"0094-9140","usgsCitation":"Piper, D.Z., Skorupa, J.P., Presser, T.S., Hardy, M.A., Hamilton, S.J., Huebner, M., and Gulbrandsen, R.A., 2000, The Phosphoria Formation at the Hot Springs Mine in Southeast Idaho: A source of selenium and other trace elements to surface water, ground water, vegetation, and biota: U.S. Geological Survey Open-File Report 2000-50, 73 p., https://doi.org/10.3133/ofr0050.","productDescription":"73 p.","costCenters":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":64355,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2000/0050/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":161529,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/2000/0050/report-thumb.jpg"}],"country":"United States","state":"Idaho","otherGeospatial":"Hot Springs Mine","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -114.3017578125,\n              42.00032514831621\n            ],\n            [\n              -111.02783203125,\n              41.983994270935625\n            ],\n            [\n              -111.07177734375,\n              44.731125592643274\n            ],\n            [\n              -114.5654296875,\n              44.574817404670306\n            ],\n            [\n              -114.3017578125,\n              42.00032514831621\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac7e4b07f02db67ae44","contributors":{"authors":[{"text":"Piper, David Z. dzpiper@usgs.gov","contributorId":2452,"corporation":false,"usgs":true,"family":"Piper","given":"David","email":"dzpiper@usgs.gov","middleInitial":"Z.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":218879,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Skorupa, J. P.","contributorId":93002,"corporation":false,"usgs":false,"family":"Skorupa","given":"J.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":218883,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Presser, T. S.","contributorId":93875,"corporation":false,"usgs":true,"family":"Presser","given":"T.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":218884,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hardy, M. A.","contributorId":54223,"corporation":false,"usgs":true,"family":"Hardy","given":"M.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":218882,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Hamilton, S. J.","contributorId":27817,"corporation":false,"usgs":false,"family":"Hamilton","given":"S.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":218880,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Huebner, M.","contributorId":95497,"corporation":false,"usgs":true,"family":"Huebner","given":"M.","email":"","affiliations":[],"preferred":false,"id":218885,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Gulbrandsen, R. A.","contributorId":48543,"corporation":false,"usgs":true,"family":"Gulbrandsen","given":"R.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":218881,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70263769,"text":"70263769 - 2000 - Data and applications for study of the water cycle in Africa","interactions":[],"lastModifiedDate":"2025-02-24T14:32:07.552978","indexId":"70263769","displayToPublicDate":"2000-12-01T11:05:15","publicationYear":"2000","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Data and applications for study of the water cycle in Africa","docAbstract":"<p> There are a number data set development, data dissemination, and applications activities at the U.S. Geological Survey (USGS) that contribute to the study of the water cycle in Africa. Some of these stem from global change research initiatives, while others are the result of technical assistance provided to international development and humanitarian assistance projects. Data themes include topography and related hydrological derivatives, land cover, satellite rainfall estimates, and vegetation indices. Some data sets are USGS products, while others originate from cooperating agencies like NASA and NOAA and are distributed secondarily. In Africa, applications include agrometeorological estimates, drought and flood monitoring. Many of the data sets are available to the user community without charge by internet, or at cost of reproduction on CDROM and tape media.</p>","conferenceTitle":"Information for sustainable development, International Symposium on Remote Sensing of the Environment","conferenceDate":"March 27-31, 2000","conferenceLocation":"Cape Town, South Africa","language":"English","publisher":"International Center for Remote Sensing of Environment and CSIR Satellite Applications Centre","usgsCitation":"Verdin, J., 2000, Data and applications for study of the water cycle in Africa, Information for sustainable development, International Symposium on Remote Sensing of the Environment, Cape Town, South Africa, March 27-31, 2000, 3 p.","productDescription":"3 p.","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":482347,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"otherGeospatial":"Africa","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              17.543545433121523,\n              -36.3103462117995\n            ],\n            [\n              49.71413439136023,\n              -26.521549903991257\n            ],\n            [\n              51.124278052391475,\n              -10.257499602815244\n            ],\n            [\n              52.17753303087025,\n              13.359360306041296\n            ],\n            [\n              45.29630778577069,\n              11.989998148812788\n            ],\n            [\n              42.14479291990705,\n              14.724720405256463\n            ],\n            [\n              30.808891048847613,\n              32.55832242926333\n            ],\n            [\n              20.031741993303967,\n              34.43604618549085\n            ],\n            [\n              9.15322594397145,\n              38.140250551018454\n            ],\n            [\n              -0.32409209064496736,\n              36.79054670141103\n            ],\n            [\n              -6.744435377428346,\n              36.011637704717515\n            ],\n            [\n              -17.406512153654973,\n              34.539067465405466\n            ],\n            [\n              -18.638683915346007,\n              13.306509250972255\n            ],\n            [\n              -11.811789450396162,\n              3.6488560505939063\n            ],\n            [\n              4.368593356766951,\n              3.7563805435434148\n            ],\n            [\n              10.12364852518732,\n              -6.102942228935035\n            ],\n            [\n              11.442967220751115,\n              -11.372411981754283\n            ],\n            [\n              10.763448129410278,\n              -17.39481694497057\n            ],\n            [\n              17.543545433121523,\n              -36.3103462117995\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Verdin, James 0000-0003-0238-9657 verdin@usgs.gov","orcid":"https://orcid.org/0000-0003-0238-9657","contributorId":145830,"corporation":false,"usgs":true,"family":"Verdin","given":"James","email":"verdin@usgs.gov","affiliations":[{"id":223,"text":"Earth Resources Observation and Science (EROS) Center (Geography)","active":false,"usgs":true}],"preferred":true,"id":928196,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":68046,"text":"ha746D - 2000 - Geohydrology of the shallow aquifers in the Boulder-Longmont area, Colorado","interactions":[],"lastModifiedDate":"2015-10-28T11:13:57","indexId":"ha746D","displayToPublicDate":"2000-12-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":318,"text":"Hydrologic Atlas","code":"HA","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"746","chapter":"D","title":"Geohydrology of the shallow aquifers in the Boulder-Longmont area, Colorado","docAbstract":"<p>Urban areas commonly rely on ground water for at least part of the municipal water supply, and as population increases, urban areas expand and require larger volumes of water. However, the expansion of an urban area can reduce ground-water availability. This may occur through processes of depletion (withdrawal of most of the available ground water), degradation (chemicals used in the urban area keep into the ground and contaminate the ground water), and preemption (cost or restrictions on pumping ground water from under extensively urbanized areas may he prohibitive). Thus, a vital natural resource needed to support the growth of an urban area and its infrastructure can become less available because of growth itself.<br />The diminished availability of natural resources caused by expansion of urban areas is not unique to water resources. For example, large volumes of aggregate (sand and gravel) are used in concrete and asphalt to build and maintain the infrastructure (buildings, roads, airports, and so forth) of an urban area. Yet, mining of aggregate commonly is preempted by urban expansion; for example, it cannot he mined from under a subdivision. Energy resources such as coal, oil, and natural gas likewise are critical to the growth and existence of an urban area but may become less available as an urban area expands and preempts mining and drilling.<br />In 1996, the U.S. Geological Survey began work on a national initiative designed to provide information on the availability of those natural resources (water, minerals, energy, and biota) that are critical to maintaining the Nation's infrastructure or that may become less available because of urban expansion. The initiative began with a 3-year demonstration project to develop procedures for assessing resources and methods for interpreting and publishing information in digital and traditional paper formats. The Front Range urban corridor of Colorado was chosen as the demonstration area (fig. 1), and the project was titled the Front Range Infrastructure Resources Project (FRIRP). This report and those of Robson (1996), Robson and others (1998), and Robson and others (2000a, 2000b, 2000c) (fig. 1) are the results of FRIRP water resources investigations; reports pertaining to geology, minerals, energy, biota, and cartography of the FRIRP are published separately. The water-resources studies of the FRIRP were undertaken in cooperation with the Colorado Department of Natural Resources, Division of Water Resources, and the Colorado Water Conservation Board.</p>","language":"ENGLISH","doi":"10.3133/ha746D","isbn":"0607961449","usgsCitation":"Robson, S.G., Heiny, J.S., and Arnold, L.R., 2000, Geohydrology of the shallow aquifers in the Boulder-Longmont area, Colorado: U.S. Geological Survey Hydrologic Atlas 746, 5 maps :col. ;97 x 60 cm., on sheets 115 x 92 cm., folded in envelope 30 x 24 cm., https://doi.org/10.3133/ha746D.","productDescription":"5 maps :col. ;97 x 60 cm., on sheets 115 x 92 cm., folded in envelope 30 x 24 cm.","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":185955,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":89302,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/ha/746d/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":89303,"rank":401,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/ha/746d/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":89304,"rank":402,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/ha/746d/plate-3.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":89305,"rank":403,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/ha/746d/plate-4.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":89306,"rank":404,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/ha/746d/plate-5.pdf","linkFileType":{"id":1,"text":"pdf"}}],"scale":"50000","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -105.26666666666667,-40.31666666666667 ], [ -105.26666666666667,-38.3 ], [ -104.93333333333334,-38.3 ], [ -104.93333333333334,-40.31666666666667 ], [ -105.26666666666667,-40.31666666666667 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b1ae4b07f02db6a882e","contributors":{"authors":[{"text":"Robson, Stanley G.","contributorId":73187,"corporation":false,"usgs":true,"family":"Robson","given":"Stanley","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":277558,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Heiny, Janet S.","contributorId":93468,"corporation":false,"usgs":true,"family":"Heiny","given":"Janet","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":277560,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Arnold, L. R.","contributorId":92738,"corporation":false,"usgs":true,"family":"Arnold","given":"L.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":277559,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":21763,"text":"ofr00204 - 2000 - Effects of animal feeding operations on water resources and the environment; proceedings of the technical meeting, Fort Collins, Colorado, August 30-September 1, 1999","interactions":[],"lastModifiedDate":"2020-02-23T17:38:59","indexId":"ofr00204","displayToPublicDate":"2000-12-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2000-204","title":"Effects of animal feeding operations on water resources and the environment; proceedings of the technical meeting, Fort Collins, Colorado, August 30-September 1, 1999","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr00204","issn":"0566-8174","usgsCitation":"Wilde, F.D., Britton, L.J., Miller, C., and Kolpin, D., 2000, Effects of animal feeding operations on water resources and the environment; proceedings of the technical meeting, Fort Collins, Colorado, August 30-September 1, 1999: U.S. Geological Survey Open-File Report 2000-204, iii, 107 p. , https://doi.org/10.3133/ofr00204.","productDescription":"iii, 107 p. ","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true},{"id":351,"text":"Iowa Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":154713,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":1194,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.water.usgs.gov/ofr00-204","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Colorado","city":"Fort Collins","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -105.15426635742188,\n              40.493437209343654\n            ],\n            [\n              -104.95788574218749,\n              40.493437209343654\n            ],\n            [\n              -104.95788574218749,\n              40.625939917833925\n            ],\n            [\n              -105.15426635742188,\n              40.625939917833925\n            ],\n            [\n              -105.15426635742188,\n              40.493437209343654\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a4ae4b07f02db624bb4","contributors":{"authors":[{"text":"Wilde, Franceska D. fwilde@usgs.gov","contributorId":92240,"corporation":false,"usgs":true,"family":"Wilde","given":"Franceska","email":"fwilde@usgs.gov","middleInitial":"D.","affiliations":[],"preferred":false,"id":185586,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Britton, L. J.","contributorId":39788,"corporation":false,"usgs":true,"family":"Britton","given":"L.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":185583,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Miller, C.V.","contributorId":41026,"corporation":false,"usgs":true,"family":"Miller","given":"C.V.","email":"","affiliations":[],"preferred":false,"id":185584,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kolpin, D.W.","contributorId":87565,"corporation":false,"usgs":true,"family":"Kolpin","given":"D.W.","email":"","affiliations":[],"preferred":false,"id":185585,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70156761,"text":"70156761 - 2000 - Simulation of nitrous oxide and nitric oxide emissions from tropical primary forests in the Costa Rican Atlantic Zone","interactions":[],"lastModifiedDate":"2015-08-27T13:16:02","indexId":"70156761","displayToPublicDate":"2000-12-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1551,"text":"Environmental Modelling and Software","active":true,"publicationSubtype":{"id":10}},"title":"Simulation of nitrous oxide and nitric oxide emissions from tropical primary forests in the Costa Rican Atlantic Zone","docAbstract":"<p id=\"\">Nitrous oxide (N<sub>2</sub>O) and nitric oxide (NO) are important atmospheric trace gases participating in the regulation of global climate and environment. Predictive models on the emissions of N<sub>2</sub>O and NO emissions from soil into the atmosphere are required. We modified the CENTURY model (Soil Sci. Soc. Am. J., 51 (1987) 1173) to simulate the emissions of N<sub>2</sub>O and NO from tropical primary forests in the Atlantic Zone of Costa Rica at a monthly time step. Combined fluxes of N<sub>2</sub>O and NO were simulated as a function of gross N mineralization and water-filled pore space (WFPS). The coefficients for partitioning N<sub>2</sub>O from NO were derived from field measurements (Global Biogeochem. Cycles, 8 (1994) 399). The modified CENTURY was calibrated against observations of carbon stocks in various pools of forest ecosystems of the region, and measured WFPS and emission rates of N<sub>2</sub>O and NO from soil to the atmosphere.</p>\n<p id=\"\">WFPS is an important factor regulating nutrient cycling and emissions of N2O and NO from soils making the accuracy of the WFPS prediction central to the modeling process. To do this, we modified the hydrologic submodel and developed a new method for the prediction of WFPS at the monthly scale from daily rainfall information. The new method is based on: (1) the relationship between monthly rainfall and the number of rainfall events, and (2) the relative cumulative frequency distribution of ranked daily rainfall events. The method is generic and should be applicable to other areas.</p>\n<p id=\"\">Simulated monthly average WFPS was 0.68&plusmn;0.02 &mdash; identical with the field measurement average of 0.68&plusmn;0.02 from the annual cycle observed by Keller and Reiners (Global Biogeochem. Cycles, 8 (1994) 399). Simulated fluxes of N<sub>2</sub>O and NO were 52.0&plusmn;9.4 mg-N m<sup>&minus;2</sup>&nbsp;month<sup>&minus;1</sup>&nbsp;and 6.5&plusmn;0.7 mg-N m<sup>&minus;2</sup>&nbsp;month<sup>&minus;1</sup>, respectively, compared with measured averages of 48.2&plusmn;11.0 mg-N m<sup>&minus;2</sup>&nbsp;month<sup>&minus;1</sup>&nbsp;and 7.1&plusmn;1.1 mg-N m<sup>&minus;2</sup>&nbsp;month<sup>&minus;1</sup>. The simulated N<sub>2</sub>O/NO ratio was 11.2&plusmn;1.9 compared with the measured value of 10.9&plusmn;4.7.</p>\n<p id=\"\">WFPS is the dominant determinant of the fraction of gross N mineralization that is emitted from the soil as N<sub>2</sub>O and NO. If WFPS were not limiting during part of the year, this fraction would be 4.2%. With some periods of lower WFPS, the realized fraction is 2.2%. Because of the strong relationships between N<sub>2</sub>O and NO emission rates and rainfall and its derivative, WFPS, these moisture variables can be used to scale up nitrogen trace gas fluxes from sites to larger spatial scales.</p>","language":"English","publisher":"Elsevier","doi":"10.1016/S1364-8152(00)00030-X","usgsCitation":"Liu, S., Reiners, W.A., Keller, M., and Schimel, D.S., 2000, Simulation of nitrous oxide and nitric oxide emissions from tropical primary forests in the Costa Rican Atlantic Zone: Environmental Modelling and Software, v. 15, no. 8, p. 727-743, https://doi.org/10.1016/S1364-8152(00)00030-X.","productDescription":"17 p.","startPage":"727","endPage":"743","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":307630,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"15","issue":"8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"55e034c3e4b0f42e3d040e45","contributors":{"authors":[{"text":"Liu, Shu-Guang sliu@usgs.gov","contributorId":984,"corporation":false,"usgs":true,"family":"Liu","given":"Shu-Guang","email":"sliu@usgs.gov","affiliations":[{"id":223,"text":"Earth Resources Observation and Science (EROS) Center (Geography)","active":false,"usgs":true}],"preferred":false,"id":570411,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Reiners, William A.","contributorId":147117,"corporation":false,"usgs":false,"family":"Reiners","given":"William","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":570412,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Keller, Michael","contributorId":42681,"corporation":false,"usgs":true,"family":"Keller","given":"Michael","email":"","affiliations":[],"preferred":false,"id":570413,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Schimel, Davis S.","contributorId":108419,"corporation":false,"usgs":true,"family":"Schimel","given":"Davis","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":570414,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":22775,"text":"ofr00160 - 2000 - Stable hydrogen and oxygen isotope ratios for selected sites of the U.S. Geological Survey's NASQAN and benchmark surface-water networks","interactions":[],"lastModifiedDate":"2012-02-02T00:08:02","indexId":"ofr00160","displayToPublicDate":"2000-11-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2000-160","title":"Stable hydrogen and oxygen isotope ratios for selected sites of the U.S. Geological Survey's NASQAN and benchmark surface-water networks","docAbstract":"Increasingly, hydrologic studies require information on the isotopic composition of natural waters. This report presents stable hydrogen (delta2H) and oxygen isotope ratios (delta18O) from 391 selected sites of the U.S. Geological Survey's National Stream Quality Accounting Network (NASQAN) and BENCHMARK surface water networks collected during the years 1984-1987. Depth-integrated samples were collected and analyzed from each site bimonthly or quarterly for about 3 years.","language":"ENGLISH","publisher":"U.S. Dept. of the Interior, U.S. Geological Survey ;\r\nBranch of Information Services [distributor],","doi":"10.3133/ofr00160","issn":"0094-9140","usgsCitation":"Coplen, T.B., and Kendall, C., 2000, Stable hydrogen and oxygen isotope ratios for selected sites of the U.S. Geological Survey's NASQAN and benchmark surface-water networks: U.S. Geological Survey Open-File Report 2000-160, xiii, 409 p. :ill., map ;28 cm., https://doi.org/10.3133/ofr00160.","productDescription":"xiii, 409 p. :ill., map ;28 cm.","costCenters":[],"links":[{"id":1521,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.water.usgs.gov/ofr00-160","linkFileType":{"id":5,"text":"html"}},{"id":155914,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49e1e4b07f02db5e48ae","contributors":{"authors":[{"text":"Coplen, Tyler B. 0000-0003-4884-6008 tbcoplen@usgs.gov","orcid":"https://orcid.org/0000-0003-4884-6008","contributorId":508,"corporation":false,"usgs":true,"family":"Coplen","given":"Tyler","email":"tbcoplen@usgs.gov","middleInitial":"B.","affiliations":[{"id":37464,"text":"WMA - Laboratory & Analytical Services Division","active":true,"usgs":true},{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true},{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":27111,"text":"National Water Quality Program","active":true,"usgs":true}],"preferred":true,"id":188854,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kendall, Carol 0000-0002-0247-3405 ckendall@usgs.gov","orcid":"https://orcid.org/0000-0002-0247-3405","contributorId":1462,"corporation":false,"usgs":true,"family":"Kendall","given":"Carol","email":"ckendall@usgs.gov","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":188855,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":24062,"text":"ofr0099 - 2000 - Water-quality data for streams in the Boulder River Watershed, Jefferson County, Montana","interactions":[],"lastModifiedDate":"2020-03-22T11:49:26","indexId":"ofr0099","displayToPublicDate":"2000-11-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2000-99","title":"Water-quality data for streams in the Boulder River Watershed, Jefferson County, Montana","docAbstract":"<p>Chemical data were collected in the Boulder River watershed of southwestern Montana during 1996-99 as part of a detailed interdisciplinary study characterizing the effects of historical inactive mines on streams in the watershed. This report presents water-quality data collected by the U.S. Geological Survey for physical properties, major ions, nutrients, and trace elements for 62 sites in and near the watershed. Supplementary historical water-quality data for 83 sites also are presented.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr0099","issn":"0094-9140","collaboration":"Prepared in cooperation with the U.S. Department of Agriculture-Forest Service","usgsCitation":"Nimick, D.A., and Cleasby, T., 2000, Water-quality data for streams in the Boulder River Watershed, Jefferson County, Montana: U.S. Geological Survey Open-File Report 2000-99, iv, 70 p., https://doi.org/10.3133/ofr0099.","productDescription":"iv, 70 p.","costCenters":[{"id":102,"text":"Abandoned Mine Lands Initiative","active":false,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":156779,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/2000/0099/report-thumb.jpg"},{"id":53236,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2000/0099/report.pdf","text":"Report","size":"1.08 MB","linkFileType":{"id":1,"text":"pdf"},"description":"Report"}],"country":"United States","state":"Montana","county":"Jefferson County","otherGeospatial":"Boulder River Watershed","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -112.4066162109375, 46.2 ], [ -111.79412841796875, 46.2 ], [ -111.79412841796875, 46.5720787149159 ], [ -112.4066162109375, 46.5720787149159 ], [ -112.4066162109375, 46.2 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49e3e4b07f02db5e58b8","contributors":{"authors":[{"text":"Nimick, David A. dnimick@usgs.gov","contributorId":421,"corporation":false,"usgs":true,"family":"Nimick","given":"David","email":"dnimick@usgs.gov","middleInitial":"A.","affiliations":[{"id":5050,"text":"WY-MT Water Science Center","active":true,"usgs":true},{"id":573,"text":"Special Applications Science Center","active":true,"usgs":true}],"preferred":true,"id":191241,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cleasby, Thomas E. 0000-0003-0694-1541","orcid":"https://orcid.org/0000-0003-0694-1541","contributorId":21993,"corporation":false,"usgs":true,"family":"Cleasby","given":"Thomas E.","affiliations":[],"preferred":false,"id":191242,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":22266,"text":"ofr0067 - 2000 - Water-quality assessment of the Eastern Iowa Basins: Hydrologic and biologic data, October 1996 through September 1998","interactions":[],"lastModifiedDate":"2022-08-30T20:38:56.112509","indexId":"ofr0067","displayToPublicDate":"2000-11-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2000-67","title":"Water-quality assessment of the Eastern Iowa Basins: Hydrologic and biologic data, October 1996 through September 1998","docAbstract":"<p>Hydrologic and biologic data collected from October 1996 through September 1998 in the Eastern Iowa Basins study unit of the U.S. Geological Survey National Water-Quality Assessment Program are presented in this report. Monthly data collected from 12 sites on rivers and streams included measurements of physical properties and determinations of the concentrations of nutrients, major ions, organic carbon, trace elements, suspended sediment, and dissolved pesticides. Fish-tissue samples were collected at two sites in September 1997 and analyzed for organochlorine pesticides. In addition, water-quality assessments were made at 25 sites as part of a synoptic study in August 1997 and May 1998. A ground-water study was conducted to evaluate the effects of agricultural and urban land use on the water quality of shallow alluvial aquifers in the study unit. Samples were collected and analyzed from wells in 31 agricultural and 30 urban land-use areas during June-August 1997. Samples were collected and analyzed from 32 domestic wells during June-July 1998 to provide a broad assessment of the water quality of shallow alluvial aquifers throughout the study unit. Samples were collected during August 1998 from 27 shallow monitoring wells completed in the Iowa River alluvial aquifer to evaluate the effects of changing land use on shallow ground-water quality. Ground-water samples were analyzed for physical properties, nutrients, major ions, organic carbon, trace elements, dissolved pesticides, volatile organic compounds, radon-222, and tritium.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr0067","usgsCitation":"Akers, K., Montgomery, D.L., Christiansen, D.E., Savoca, M.E., Schnoebelen, D.J., Becher, K., and Sadorf, E.M., 2000, Water-quality assessment of the Eastern Iowa Basins: Hydrologic and biologic data, October 1996 through September 1998: U.S. Geological Survey Open-File Report 2000-67, viii, 359 p., https://doi.org/10.3133/ofr0067.","productDescription":"viii, 359 p.","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":351,"text":"Iowa Water Science Center","active":true,"usgs":true},{"id":583,"text":"Texas Water Science Center","active":true,"usgs":true},{"id":622,"text":"Washington Water Science Center","active":true,"usgs":true}],"links":[{"id":316709,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":1350,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2000/ofr0067/","linkFileType":{"id":5,"text":"html"}},{"id":405948,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_30106.htm","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Iowa","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -93.828,\n              40.719\n            ],\n            [\n              -90.367,\n              40.719\n            ],\n            [\n              -90.367,\n              43.916\n            ],\n            [\n              -93.828,\n              43.916\n            ],\n            [\n              -93.828,\n              40.719\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","tableOfContents":"<p>Abstract<br />Introduction<br />&nbsp; &nbsp; &nbsp;Purpose and Scope <br />&nbsp; &nbsp; &nbsp;Description of the Eastern Iowa Basins <br />Implementation of Water-Quality Studies<br />&nbsp; &nbsp; &nbsp;Surface-Water-Quality Data Collection<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Sampling Sites<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Surface-Water Sample Collection<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Biologic Sample Collection<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Analytical Procedures<br />&nbsp; &nbsp; &nbsp;Ground-Water-Quality Data<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Site Selection<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Well Installation<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Ground-Water Sample Collection<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Analytical Procedures<br />&nbsp; &nbsp; &nbsp;Water-Quality Analysis and Quality Control<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Surface Water<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Ground Water<br />Acknowledgments<br />Selected References</p>","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a0ae4b07f02db5fb5a0","contributors":{"authors":[{"text":"Akers, Kimberlee K.","contributorId":43379,"corporation":false,"usgs":true,"family":"Akers","given":"Kimberlee K.","affiliations":[],"preferred":false,"id":187860,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Montgomery, Denise L.","contributorId":92698,"corporation":false,"usgs":true,"family":"Montgomery","given":"Denise","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":187862,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Christiansen, Daniel E. 0000-0001-6108-2247 dechrist@usgs.gov","orcid":"https://orcid.org/0000-0001-6108-2247","contributorId":366,"corporation":false,"usgs":true,"family":"Christiansen","given":"Daniel","email":"dechrist@usgs.gov","middleInitial":"E.","affiliations":[{"id":351,"text":"Iowa Water Science Center","active":true,"usgs":true}],"preferred":true,"id":187856,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Savoca, Mark E. mesavoca@usgs.gov","contributorId":1961,"corporation":false,"usgs":true,"family":"Savoca","given":"Mark","email":"mesavoca@usgs.gov","middleInitial":"E.","affiliations":[{"id":622,"text":"Washington Water Science Center","active":true,"usgs":true}],"preferred":true,"id":187857,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Schnoebelen, Douglas J.","contributorId":87514,"corporation":false,"usgs":true,"family":"Schnoebelen","given":"Douglas","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":187861,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Becher, Kent 0000-0002-3947-0793 kdbecher@usgs.gov","orcid":"https://orcid.org/0000-0002-3947-0793","contributorId":3863,"corporation":false,"usgs":true,"family":"Becher","given":"Kent","email":"kdbecher@usgs.gov","affiliations":[{"id":583,"text":"Texas Water Science Center","active":true,"usgs":true}],"preferred":true,"id":187859,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Sadorf, Eric M. emsadorf@usgs.gov","contributorId":2245,"corporation":false,"usgs":true,"family":"Sadorf","given":"Eric","email":"emsadorf@usgs.gov","middleInitial":"M.","affiliations":[],"preferred":true,"id":187858,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70179116,"text":"70179116 - 2000 - Geohydrology and numerical simulation of groundwater flow in the central Virgin River Basin of Iron and Washington Counties, Utah","interactions":[],"lastModifiedDate":"2022-11-09T17:29:48.788751","indexId":"70179116","displayToPublicDate":"2000-11-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":4,"text":"Other Government Series"},"seriesTitle":{"id":294,"text":"Technical Publication","active":false,"publicationSubtype":{"id":4}},"seriesNumber":"116","title":"Geohydrology and numerical simulation of groundwater flow in the central Virgin River Basin of Iron and Washington Counties, Utah","docAbstract":"<p>Because rapid growth of communities in Washington and Iron Counties, Utah, is expected to cause an increase in the future demand for water resources, a hydrologic investigation was done to better understand ground-water resources within the central Virgin River basin. This study focused on two of the principal ground-water reservoirs within the basin: the upper Ash Creek basin ground-water system and the Navajo and Kayenta aquifer system.</p><p>The ground-water system of the upper Ash Creek drainage basin consists of three aquifers: the uppermost Quaternary basin-fill aquifer, the Tertiary alluvial-fan aquifer, and the Tertiary Pine Valley monzonite aquifer. These aquifers are naturally bounded by the Hurricane Fault and by drainage divides. On the basis of measurements, estimates, and numerical simulations of reasonable values for all inflow and outflow components, total water moving through the upper Ash Creek drainage basin ground-water system is estimated to be about 14,000 acre-feet per year. Recharge to the upper Ash Creek drainage basin ground-water system is mostly from infiltration of precipitation and seepage from ephemeral and perennial streams. The primary source of discharge is assumed to be evapotranspiration; however, subsurface discharge near Ash Creek Reservoir also may be important.</p><p>The character of two of the hydrologic boundaries of the upper Ash Creek drainage basin ground-water system is speculative. The eastern boundary provided by the Hurricane Fault is assumed to be a no-flow boundary, and a substantial part of the ground-water discharge from the system is assumed to be subsurface outflow beneath Ash Creek Reservoir along the southern boundary. However, these assumptions might be incorrect because alternative numerical simulations that used different boundary conditions also proved to be feasible. The hydrogeologic character of the aquifers is uncertain because of limited data. Differences in well yield indicate that there is considerable variability in the transmissivity of the basin-fill aquifer. Field data also indicate that the basin-fill aquifer is more transmissive than the underlying alluvial-fan aquifer. Data from the Pine Valley monzonite aquifer indicate that its transmissivity may be highly variable and that it is strongly influenced by the connection of fractures.</p><p>The Navajo and Kayenta aquifers provide most of the potable water to the municipalities of Washington County. Because of large outcrop exposures, uniform grain size, and large stratigraphic thickness, these formations are able to receive and store large amounts of water. In addition, structural forces have resulted in extensive fracture zones that enhance ground-water recharge and movement within these aquifers. Aquifer testing of the Navajo aquifer indicates that horizontal hydraulic-conductivity values range from 0.2 to 32 feet per day at different locations and may be primarily dependent on the extent of fracturing. Limited data indicate that the Kayenta aquifer generally is less transmissive than the Navajo aquifer. The aquifers are bounded to the south and west by the erosional extent of the formations and to the east by the Hurricane Fault, which completely offsets these formations and is assumed to be a lateral no-flow boundary. Like the Hurricane Fault, the Gunlock Fault is assumed to be a lateral no-flow boundary that divides the Navajo and Kayenta aquifers within the study area into two parts: the main part, between the Hurricane and Gunlock Faults; and the Gunlock part, west of the Gunlock Fault.</p><p>Generally, the water in the Navajo and Kayenta aquifers contains few dissolved minerals. However, two distinct areas contain water with dissolved-solids concentrations greater than 500 milligrams per liter: a larger area north of the city of St. George and a smaller area a few miles west of the town of Hurricane. Mass-balance calculations indicate that in the higher-dissolved-solids area north of St. George, as much as 2.7 cubic feet per second may be entering the aquifer from underlying formations. For the area west of Hurricane, as much as 1.5 cubic feet per second may be entering the aquifer from underlying formations.</p><p>On the basis of measurements, estimates, and numerical simulations, total water moving through the Navajo and Kayenta aquifers is estimated to be about 25,000 acre-feet per year for the main part and 5,000 acre-feet per year for the Gunlock part. The primary source of recharge is assumed to be infiltration of precipitation in the main part and seepage from the Santa Clara River in the Gunlock part. The primary source of discharge is assumed to be well discharge for both the main and Gunlock parts of the aquifers. Numerical simulations indicate that faults with major offset, such as the Washington Hollow Fault and an unnamed fault near Anderson Junction, may impede horizontal ground-water flow. Also, increased horizontal hydraulic conductivity along the orientation of predominant surface fracturing may be an important factor in regional ground-water flow. Simulations with increased north-south hydraulic conductivity substantially improved the match to measured water levels in the central area of the model between Snow Canyon and Mill Creek. Numerical simulation of the Gunlock part, using aquifer properties determined for the city of St. George municipal well field, resulted in a reasonable representation of regional water levels and estimated seepage from and to the Santa Clara River. To further quantify the Gunlock part of the Navajo and Kayenta aquifers, a better understanding of ground-water flow at the Gunlock Fault is needed.</p>","language":"English","publisher":"Utah Department of Natural Resources, Division of Water Rights","publisherLocation":"Salt Lake City, UT","collaboration":"Prepared by the  United States Geological Survey in cooperation with the Utah Department of Natural Resources, Division of Water Rights; and the Washington County Water Conservancy District","usgsCitation":"Heilweil, V., Freethey, G., Wilkowske, C., Stolp, B., and Wilberg, D., 2000, Geohydrology and numerical simulation of groundwater flow in the central Virgin River Basin of Iron and Washington Counties, Utah: Technical Publication 116, xviii, 139 p.","productDescription":"xviii, 139 p.","numberOfPages":"206","costCenters":[{"id":610,"text":"Utah Water Science Center","active":true,"usgs":true}],"links":[{"id":332239,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":409264,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://www.waterrights.utah.gov/cgi-bin/docview.exe?Folder=TP50-1-203&Title=Technical+Publication+116"}],"country":"United States","state":"Utah","county":"Iron County, Washington County","otherGeospatial":"Central Virgin River Basin","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -114.06005859375,\n              37.00255267215955\n            ],\n            [\n              -114.06005859375,\n              37.78808138412046\n            ],\n            [\n              -112.25830078125,\n              37.78808138412046\n            ],\n            [\n              -112.25830078125,\n              37.00255267215955\n            ],\n            [\n              -114.06005859375,\n              37.00255267215955\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58550b8ae4b02bdf681568c3","contributors":{"authors":[{"text":"Heilweil, V.M.","contributorId":25197,"corporation":false,"usgs":true,"family":"Heilweil","given":"V.M.","affiliations":[],"preferred":false,"id":656079,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Freethey, G. W.","contributorId":105714,"corporation":false,"usgs":true,"family":"Freethey","given":"G. W.","affiliations":[],"preferred":false,"id":656080,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wilkowske, C.D.","contributorId":63050,"corporation":false,"usgs":true,"family":"Wilkowske","given":"C.D.","email":"","affiliations":[],"preferred":false,"id":656081,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Stolp, Bernard J. 0000-0003-3803-1497","orcid":"https://orcid.org/0000-0003-3803-1497","contributorId":71942,"corporation":false,"usgs":true,"family":"Stolp","given":"Bernard J.","affiliations":[],"preferred":false,"id":656082,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Wilberg, Dale E.","contributorId":60215,"corporation":false,"usgs":true,"family":"Wilberg","given":"Dale E.","affiliations":[],"preferred":false,"id":656083,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70185209,"text":"70185209 - 2000 - Forces dictating colloidal interactions between viruses and soil","interactions":[],"lastModifiedDate":"2020-01-04T14:36:46","indexId":"70185209","displayToPublicDate":"2000-10-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1226,"text":"Chemosphere","active":true,"publicationSubtype":{"id":10}},"title":"Forces dictating colloidal interactions between viruses and soil","docAbstract":"<p><span>The fate and transport of viruses in soil and aquatic environments were studied with respect to the different forces involved in the process of sorption of these viruses on soil particles. In accordance with the classical DLVO theory, we have calculated the repulsive electrostatic forces and the attractive van der Waals forces. Bacteriophages have been used as model sorbates, while different clays have been used as model sorbents. The equations used for the determination of the change in free energy for the process (Δ</span><i>G</i><span>) takes into consideration the roughness of the sorbent surfaces. Results indicate that attractive van der Waals forces predominate the process of sorption of the selected bacteriophages on clays.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/S0045-6535(99)00519-6","usgsCitation":"Chattopadhyay, S., and Puls, R.W., 2000, Forces dictating colloidal interactions between viruses and soil: Chemosphere, v. 41, no. 8, p. 1279-1286, https://doi.org/10.1016/S0045-6535(99)00519-6.","productDescription":"8 p. ","startPage":"1279","endPage":"1286","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":337725,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"41","issue":"8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58cba420e4b0849ce97dc776","contributors":{"authors":[{"text":"Chattopadhyay, Sandip","contributorId":189404,"corporation":false,"usgs":false,"family":"Chattopadhyay","given":"Sandip","email":"","affiliations":[],"preferred":false,"id":684734,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Puls, Robert W.","contributorId":93814,"corporation":false,"usgs":true,"family":"Puls","given":"Robert","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":684735,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":22972,"text":"ofr00109 - 2000 - check_picks_x: A program for checking the travel time picks of crosswell seismic and radar data","interactions":[],"lastModifiedDate":"2020-02-23T18:01:18","indexId":"ofr00109","displayToPublicDate":"2000-10-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2000-109","title":"check_picks_x: A program for checking the travel time picks of crosswell seismic and radar data","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr00109","issn":"0094-9140","usgsCitation":"Ellefsen, K., 2000, check_picks_x: A program for checking the travel time picks of crosswell seismic and radar data: U.S. Geological Survey Open-File Report 2000-109, HTML, https://doi.org/10.3133/ofr00109.","productDescription":"HTML","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":155951,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":1409,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2000/ofr-00-0109/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4795e4b07f02db48d566","contributors":{"authors":[{"text":"Ellefsen, Karl","contributorId":19588,"corporation":false,"usgs":true,"family":"Ellefsen","given":"Karl","affiliations":[],"preferred":false,"id":189219,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":22051,"text":"ofr0034 - 2000 - Preliminary release of scientific reports on the acidic drainage in the Animas River watershed, San Juan County, Colorado","interactions":[],"lastModifiedDate":"2024-12-27T19:25:28.335681","indexId":"ofr0034","displayToPublicDate":"2000-10-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2000-34","title":"Preliminary release of scientific reports on the acidic drainage in the Animas River watershed, San Juan County, Colorado","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr0034","issn":"0094-9140","usgsCitation":"Church, S.E., 2000, Preliminary release of scientific reports on the acidic drainage in the Animas River watershed, San Juan County, Colorado: U.S. Geological Survey Open-File Report 2000-34, ii, 116 p., https://doi.org/10.3133/ofr0034.","productDescription":"ii, 116 p.","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":402079,"rank":2,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_23406.htm","text":"Geologic control on acidic and metal-rich waters in the southeast Red Mountains area, near Silverton, Colorado","linkFileType":{"id":5,"text":"html"}},{"id":153065,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/2000/0034/report-thumb.jpg"},{"id":51508,"rank":3,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2000/0034/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":465490,"rank":4,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_23407.htm","text":"Pre-mining bed sediment geochemical baseline in the Animas River watershed, southwestern Colorado","linkFileType":{"id":5,"text":"html"}},{"id":465491,"rank":5,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_23408.htm","text":"Natural sources of metals to surface waters in the upper Animas River watershed, Colorado","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Colorado","county":"San Juan County","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"Polygon\",\"coordinates\":[[[-107.5857,37.9702],[-107.5786,37.9667],[-107.5721,37.9636],[-107.5632,37.9573],[-107.5584,37.9524],[-107.5549,37.9493],[-107.5502,37.9475],[-107.5361,37.9445],[-107.5319,37.9414],[-107.5324,37.9378],[-107.5347,37.9337],[-107.5352,37.9291],[-107.5351,37.9237],[-107.532,37.9178],[-107.5278,37.9088],[-107.5247,37.9039],[-107.5212,37.9007],[-107.5211,37.8967],[-107.5279,37.8875],[-107.5324,37.8806],[-107.5329,37.8748],[-107.5317,37.8734],[-107.5305,37.8716],[-107.5204,37.8618],[-107.5179,37.8554],[-107.5184,37.8486],[-107.5176,37.84],[-107.5146,37.8342],[-107.5127,37.8288],[-107.5121,37.8265],[-107.5109,37.8256],[-107.5068,37.8243],[-107.491,37.8236],[-107.4828,37.8223],[-107.4757,37.817],[-107.4705,37.8143],[-107.4669,37.8107],[-107.4627,37.8044],[-107.4578,37.7918],[-107.457,37.785],[-107.4581,37.7791],[-107.4666,37.7668],[-107.4677,37.7645],[-107.4695,37.7645],[-107.4777,37.768],[-107.4812,37.7684],[-107.4829,37.7675],[-107.484,37.7648],[-107.4824,37.7407],[-107.4832,37.6374],[-107.6698,37.6372],[-107.6849,37.6375],[-107.6867,37.6375],[-107.9686,37.6377],[-107.9628,37.6401],[-107.96,37.6415],[-107.9583,37.6429],[-107.9572,37.6456],[-107.9572,37.6479],[-107.9579,37.6524],[-107.9604,37.6592],[-107.9629,37.6646],[-107.966,37.6718],[-107.9685,37.6777],[-107.9698,37.6822],[-107.9699,37.6867],[-107.9688,37.6899],[-107.966,37.6936],[-107.9615,37.6977],[-107.9575,37.7005],[-107.9534,37.7024],[-107.9505,37.7029],[-107.9471,37.7029],[-107.9389,37.7017],[-107.936,37.7017],[-107.9331,37.7027],[-107.9274,37.706],[-107.9239,37.7074],[-107.9181,37.7079],[-107.9135,37.7098],[-107.9094,37.7112],[-107.9049,37.7154],[-107.9014,37.7168],[-107.8968,37.7173],[-107.8904,37.717],[-107.8817,37.7162],[-107.8764,37.7163],[-107.8747,37.7172],[-107.873,37.7213],[-107.8726,37.7259],[-107.8733,37.7317],[-107.8717,37.7368],[-107.8684,37.7431],[-107.8644,37.7477],[-107.8627,37.7509],[-107.8622,37.7537],[-107.8629,37.7559],[-107.8641,37.7582],[-107.8659,37.76],[-107.8677,37.7617],[-107.8683,37.7635],[-107.8672,37.7663],[-107.8615,37.7732],[-107.8592,37.7737],[-107.854,37.7742],[-107.8493,37.7734],[-107.8446,37.7721],[-107.8423,37.7721],[-107.84,37.7726],[-107.8354,37.7767],[-107.8275,37.7859],[-107.8224,37.7915],[-107.8213,37.7928],[-107.8225,37.7955],[-107.8268,37.8063],[-107.8263,37.8082],[-107.8258,37.81],[-107.8085,37.8207],[-107.8056,37.8212],[-107.8004,37.8212],[-107.7975,37.8213],[-107.7952,37.8222],[-107.7935,37.8236],[-107.7918,37.8277],[-107.7885,37.8332],[-107.7868,37.8355],[-107.7845,37.8378],[-107.7812,37.8451],[-107.7762,37.8556],[-107.7756,37.857],[-107.7768,37.8592],[-107.7781,37.8615],[-107.7741,37.8656],[-107.7655,37.8739],[-107.7553,37.8845],[-107.7479,37.8923],[-107.7422,37.8982],[-107.7359,37.9038],[-107.7188,37.8977],[-107.7077,37.8955],[-107.7024,37.892],[-107.6977,37.8912],[-107.6942,37.8917],[-107.6897,37.8967],[-107.6879,37.8976],[-107.6862,37.899],[-107.6839,37.9],[-107.681,37.9],[-107.6682,37.9011],[-107.6595,37.9039],[-107.6514,37.9081],[-107.6422,37.9146],[-107.6394,37.9187],[-107.6389,37.9237],[-107.6404,37.9368],[-107.6405,37.9404],[-107.6407,37.9491],[-107.6385,37.9545],[-107.635,37.9586],[-107.6263,37.9588],[-107.6216,37.9588],[-107.6077,37.9636],[-107.5961,37.9669],[-107.588,37.9688],[-107.5857,37.9702]]]},\"properties\":{\"name\":\"San Juan\",\"state\":\"CO\"}}]}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4895e4b07f02db5228e1","contributors":{"authors":[{"text":"Church, S. E.","contributorId":58260,"corporation":false,"usgs":true,"family":"Church","given":"S.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":186862,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":22930,"text":"ofr0070 - 2000 - Selected hydrologic data, through water year 1998, Black Hills Hydrology Study, South Dakota","interactions":[],"lastModifiedDate":"2012-02-02T00:07:51","indexId":"ofr0070","displayToPublicDate":"2000-10-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2000-70","title":"Selected hydrologic data, through water year 1998, Black Hills Hydrology Study, South Dakota","docAbstract":"This report presents water-level and water-quality data that have been collected or compiled, through water year 1998, for the Black Hills Hydrology Study. This study is a long-term coop-erative effort between the U.S. Geological Survey, the South Dakota Department of Environment and Natural Resources, and the West Dakota Water Development District (which represents various local and county cooperators). This report is the third in a series of project data reports produced for the study.\r\n\r\nDaily water-level data are presented for 71 observation wells and 2 cave sites in the Black Hills area of western South Dakota. The wells include a network of observation wells that are maintained in cooperation with the South Dakota Department of Environment and Natural Resources and are completed in various bedrock formations that are utilized as aquifers in the Black Hills area of western South Dakota. Both cave sites are located within outcrops of the Madison Limestone. Data presented include site descriptions, hydrographs, and tables of daily water levels.\r\n\r\nAnnual measurements of water levels collected during water years 1995-98 from a net-work of 18 additional, miscellaneous wells are presented. These wells are part of a statewide network of wells completed in bedrock aquifers that was operated from 1959 through 1989 in cooperation with the South Dakota Department of Environment and Natural Resources. Site descriptions and hydrographs for the entire period of record for each site also are presented.\r\n\r\nWater-quality data are presented for 9 surface-water sites, 19 ground-water sites, and 30 sites that have been classified as areas of surface- and ground-water interaction in the Black Hills area. The surface- and ground-water interaction sites are further divided into three categories that include 11 loss zone sites, 8 headwater spring sites, and 11 downgradient spring sites.","language":"ENGLISH","publisher":"U.S. Dept. of the Interior, U.S. Geological Survey ;\r\nBranch of Information Services [distributor],","doi":"10.3133/ofr0070","issn":"0094-9140","usgsCitation":"Driscoll, D.G., Bradford, W.L., and Moran, M.J., 2000, Selected hydrologic data, through water year 1998, Black Hills Hydrology Study, South Dakota: U.S. Geological Survey Open-File Report 2000-70, iv, 284 p. :ill., maps ;28 cm., https://doi.org/10.3133/ofr0070.","productDescription":"iv, 284 p. :ill., maps ;28 cm.","costCenters":[],"links":[{"id":153565,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":1377,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.water.usgs.gov/ofr00-070/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4882e4b07f02db517489","contributors":{"authors":[{"text":"Driscoll, Daniel G. dgdrisco@usgs.gov","contributorId":1558,"corporation":false,"usgs":true,"family":"Driscoll","given":"Daniel","email":"dgdrisco@usgs.gov","middleInitial":"G.","affiliations":[{"id":562,"text":"South Dakota Water Science Center","active":true,"usgs":true}],"preferred":true,"id":189148,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bradford, Wendell L.","contributorId":102883,"corporation":false,"usgs":true,"family":"Bradford","given":"Wendell","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":189149,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Moran, Michael J. mjmoran@usgs.gov","contributorId":1047,"corporation":false,"usgs":true,"family":"Moran","given":"Michael","email":"mjmoran@usgs.gov","middleInitial":"J.","affiliations":[{"id":465,"text":"Nevada Water Science Center","active":true,"usgs":true}],"preferred":true,"id":189147,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":5063,"text":"fs16696 - 2000 - Mercury studies in the Florida Everglades","interactions":[],"lastModifiedDate":"2025-04-10T23:41:46.524637","indexId":"fs16696","displayToPublicDate":"2000-10-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":313,"text":"Fact Sheet","code":"FS","onlineIssn":"2327-6932","printIssn":"2327-6916","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"166-96","displayTitle":"Mercury Studies in the Florida Everglades","title":"Mercury studies in the Florida Everglades","docAbstract":"<p>Public concern for wildlife and human health problems due to mercury (Hg) toxicity has increased substantially since the mid-1980's. These concerns are manifested primarily by the issuance of fish consumption advisories in the majority of U.S. states, Canada, and several European countries because of high levels of mercury in game fish. Although the precise causes for this contamination problem are not completely understood, it appears that there are both source and ecosystem-specific factors that can result in elevated levels of mercury in game fish. Because mercury is known to adverse affect the human brain and nervous system, health concerns arise when elevated concentrations of mercury are detected in game fish from ecosystems where there is subsistence level consumption of fish. In extreme cases such as the Everglades, where mercury concentrations in fish consistently exceed the Florida advisory level of 1.5 parts per million, even occasional fish consumption is not recommended.</p><p>For most aquatic ecosystems, atmospheric deposition is the primary source of mercury. although there are numerous instances of geologic and anthropogenic point-source contamination. There are many sources of mercury to the atmosphere, both natural and human related. Natural sources include outgassing from the oceans, volcanoes, and natural mercury deposits. Coal combustion, waste incineration, chloralkai production, and metal processing are the dominant human-related sources to the atmosphere. In ecosystems for which atmospheric deposition is the dominant source, resulting concentrations of total mercury in water are very low, generally less than 10 nanograms per liter (ng/L). The challenge to scientists is to explain the series of processes that lead to toxic or near-toxic levels of mercury in organisms near the top of the food chain (bioaccumulation), when aqueous concentrations and source-delivery rates are so low. To understand this phenomenon adequately, scientists must apply an interdisciplinary approach wherein various components of an ecosystem (atmosphere, biota, surface water, ground water, and sediments) are studied-contemporaneously. The purpose of this fact sheet is to describe the mercury contamination problem in south Florida, and the interdisciplinary project that was assembled under the auspices of the U.S. Geological Survey South Florida Ecosystem Program to investigate the underlying processes that cause mercury bioaccumulation.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/fs16696","usgsCitation":"Krabbenhoft, D.P., 2000, Mercury studies in the Florida Everglades: U.S. Geological Survey Fact Sheet 1996–166, 4 p., https://doi.org/10.3133/fs16696.","productDescription":"4 p.","numberOfPages":"4","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":286152,"rank":2,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/fs/0166-96/report-thumb.jpg"},{"id":286153,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/fs/0166-96/report.pdf","text":"Report","size":"1 KB","linkFileType":{"id":1,"text":"pdf"},"description":"FS 166-96"}],"country":"United States","state":"Florida","otherGeospatial":"Florida Everglades","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -80.75,25.5 ], [ -80.75,26.5 ], [ -80.0,26.5 ], [ -80.0,25.5 ], [ -80.75,25.5 ] ] ] } } ] }","contact":"<p><a href=\"https://www.usgs.gov/locations/st-petersburg-coastal-and-marine-science-center\" data-mce-href=\"https://www.usgs.gov/locations/st-petersburg-coastal-and-marine-science-center\">St. Petersburg Coastal and Marine Science Center</a><br>U.S. Geological Survey<br>600 4th Street South<br>St. Petersburg, FL 33701</p>","tableOfContents":"<ul><li>Background</li><li>Mercury in the Geochemical Cycle and Food Chain of the Everglades</li><li>The USGS South Florida Ecosystem Program</li><li>Mercury Cycling in the Florida Everglades Project</li><li>Anticipated Project Schedule</li></ul>","publishedDate":"1996-07-01","noUsgsAuthors":false,"publicationDate":"1996-07-01","publicationStatus":"PW","scienceBaseUri":"4f4e4a4ae4b07f02db624dc0","contributors":{"authors":[{"text":"Krabbenhoft, David P. 0000-0003-1964-5020 dpkrabbe@usgs.gov","orcid":"https://orcid.org/0000-0003-1964-5020","contributorId":1658,"corporation":false,"usgs":true,"family":"Krabbenhoft","given":"David","email":"dpkrabbe@usgs.gov","middleInitial":"P.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true},{"id":677,"text":"Wisconsin Water Science Center","active":true,"usgs":true},{"id":37947,"text":"Upper Midwest Water Science Center","active":true,"usgs":true},{"id":37464,"text":"WMA - Laboratory & Analytical Services Division","active":true,"usgs":true}],"preferred":true,"id":150358,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":5109,"text":"fs14596 - 2000 - Ecosystem history of Biscayne Bay and the southeast coast","interactions":[],"lastModifiedDate":"2025-04-10T13:42:48.576481","indexId":"fs14596","displayToPublicDate":"2000-10-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":313,"text":"Fact Sheet","code":"FS","onlineIssn":"2327-6932","printIssn":"2327-6916","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"145-96","displayTitle":"Ecosystem History of Biscayne Bay and the Southeast Coast","title":"Ecosystem history of Biscayne Bay and the southeast coast","docAbstract":"<h1>Overview</h1><p>The U.S. Geological Survey is participating in a multi-institutional effort to assess, monitor, and restore the ecosystem of South Florida. Federal, State and local agencies are collaborating to establish a firm scientific basis for land management and water policy issues. Historical changes in South Florida related to rapid population growth in the early to middle 1900's have led to significant alteration of the natural hydrocycles and water quality of Florida and Biscayne Bays. These changes have affected the salinity and nutrient supply and introduced toxic components into Biscayne Bay. The Biscayne Bay ecosystem shows increasing signs of distress: declines in fisheries, increased pollution, and dramatic changes in nearshore vegetation. Northern and central Biscayne Bay are strongly affected by the urban development associated with the growth of Miami. Southern Biscayne Bay is influenced by drainage from the Everglades, which has been altered by canals and agricultural activities. Restoration and preservation of Biscayne Bay and Biscayne National Park are dependent on a comprehensive understanding of the linkages between the hydrologic system and the bay ecosystem, and of natural versus human-induced variability of the ecosystem.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/fs14596","usgsCitation":"Ishman, S.E., 2000, Ecosystem history of Biscayne Bay and the southeast coast:  U.S. Geological Survey Fact Sheet 1996–145, \nhttps://doi.org/10.3133/fs14596.","costCenters":[{"id":27821,"text":"Caribbean-Florida Water Science Center","active":true,"usgs":true}],"links":[{"id":117450,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/fs/1996/0145/coverthb.jpg"},{"id":477,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/fs/1996/0145/","linkFileType":{"id":5,"text":"html"}}],"contact":"<p><a href=\"https://www.usgs.gov/centers/car-fl-water\" data-mce-href=\"https://www.usgs.gov/centers/car-fl-water\">Caribbean-Florida Water Science Center</a><br>U.S. Geological Survey<br>3321 College Avenue<br>Davie, FL 33314</p><p><a href=\"https://pubs.er.usgs.gov/contact\" data-mce-href=\"../contact\">Contact Pubs Warehouse</a></p>","tableOfContents":"<ul><li>Overview</li><li>Biscayne Bay Ecosystem</li><li>Project Goals</li><li>Ecosystem Studies</li><li>Collaborators and Results</li></ul>","publishedDate":"2000-10-01","noUsgsAuthors":false,"publicationDate":"2000-10-01","publicationStatus":"PW","scienceBaseUri":"4f4e4a4be4b07f02db62596c","contributors":{"authors":[{"text":"Ishman, Scott E.","contributorId":102468,"corporation":false,"usgs":true,"family":"Ishman","given":"Scott","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":150431,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":23029,"text":"ofr00114 - 2000 - Analytical results for total-digestions, EPA-1312 leach, and net acid production for twenty-three abandoned metal-mining related wastes in the Boulder River watershed, northern Jefferson County, Montana","interactions":[],"lastModifiedDate":"2020-02-23T17:22:42","indexId":"ofr00114","displayToPublicDate":"2000-10-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2000-114","title":"Analytical results for total-digestions, EPA-1312 leach, and net acid production for twenty-three abandoned metal-mining related wastes in the Boulder River watershed, northern Jefferson County, Montana","docAbstract":"<h1>Introduction</h1><p>Metal-mining related wastes in the Boulder River basin study area in northern Jefferson County, Montana, have been implicated in their detrimental effects on water quality with regard to acid generation and toxic-metal solubilization during snow melt and storm water runoff events. This degradation of water quality is defined chiefly by the “Class 1 Aquatic Life Standards” that give limits for certain dissolved metal concentrations according to water alkalinity.</p><p>Veins enriched in base- and precious metals were explored and mined in the Basin, Cataract Creek, and High Ore Creek drainages over a period of more than 70 years. Extracted minerals included galena, sphalerite, pyrite, chalcopyrite, tetrahedrite and arsenopyrite. Most of the metal-mining wastes in the study area were identified and described by the Montana Bureau of Mines and Geology. In 1997, the U.S. Geological Survey collected 20 composite samples of mine-dump or tailings waste from ten sites in the Basin and Cataract Creek drainages, and two samples from one site in the High Ore Creek drainage. Desborough and Fey presented data concerning acid generation potential, mineralogy, concentrations of certain metals by energy-dispersive X-ray fluorescence (EDXRF), and trace-element leachability of mine and exploration wastes from the ten sites of the Basin and Cataract Creek drainages. The present report presents total-digestion major- and trace-element analyses, net acid production (NAP), and results from the EPA-1312 synthetic precipitation leach procedure (SPLP) performed on the same composite samples from the ten sites from the Basin and Cataract Creek drainages, and two composite samples from the site in the High Ore Creek drainage.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr00114","issn":"0094-9140","usgsCitation":"Fey, D.L., Desborough, G.A., and Finney, C.J., 2000, Analytical results for total-digestions, EPA-1312 leach, and net acid production for twenty-three abandoned metal-mining related wastes in the Boulder River watershed, northern Jefferson County, Montana: U.S. Geological Survey Open-File Report 2000-114, Report: i, 17 p.; 4 Tables, https://doi.org/10.3133/ofr00114.","productDescription":"Report: i, 17 p.; 4 Tables","onlineOnly":"Y","additionalOnlineFiles":"Y","costCenters":[{"id":102,"text":"Abandoned Mine Lands Initiative","active":false,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":340593,"rank":3,"type":{"id":27,"text":"Table"},"url":"https://pubs.usgs.gov/of/2000/ofr-00-0114/ofr20000114_table1.xls","text":"Table 1","size":"18 KB","linkFileType":{"id":3,"text":"xlsx"},"description":"Table 1","linkHelpText":"- Sample numbers, localities, size estimates, and site descriptions of dump samples from the Boulder Watershed study area"},{"id":340594,"rank":4,"type":{"id":27,"text":"Table"},"url":"https://pubs.usgs.gov/of/2000/ofr-00-0114/ofr20000114_table2.xls","text":"Table 2","size":"20.5 KB","linkFileType":{"id":3,"text":"xlsx"},"description":"Table 2","linkHelpText":"- Total-digestion ICP-AES analyses of mine wastes collected from the Boulder River watershed study area"},{"id":340595,"rank":5,"type":{"id":27,"text":"Table"},"url":"https://pubs.usgs.gov/of/2000/ofr-00-0114/ofr20000114_table3.xls","text":"Table 3","size":"24 KB","linkFileType":{"id":3,"text":"xlsx"},"description":"Table 3","linkHelpText":"- pH, conductivities, ICP-AES analyses of EPA 1312 leach solutions, and Net Acid Production (NAP) of mine waste samples collected from Boulder River Watershed study area"},{"id":340596,"rank":6,"type":{"id":27,"text":"Table"},"url":"https://pubs.usgs.gov/of/2000/ofr-00-0114/ofr20000114_table4.xls","text":"Table 4","size":"19.5 KB","linkFileType":{"id":3,"text":"xlsx"},"description":"Table 4","linkHelpText":"-  NAP, summed dissolved metals As+Cd+Cu+Pb+Zn and dissolved iron, in EPA -1312 leach solutions, and chemical ranks of mine wastes"},{"id":341933,"rank":7,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2000/ofr-00-0114/"},{"id":339895,"rank":3,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2000/ofr-00-0114/ofr-00-0114.pdf","text":"Report","size":"250 kB","linkFileType":{"id":1,"text":"pdf"},"description":"OFR 2000-0114"},{"id":155139,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/2000/ofr-00-0114/coverthb.jpg"}],"country":"United States","state":"Montana","county":"Jefferson County","otherGeospatial":"Boulder River watershed","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -112.4066162109375,\n              46.2\n            ],\n            [\n              -111.79412841796875,\n              46.2\n            ],\n            [\n              -111.79412841796875,\n              46.5720787149159\n            ],\n            [\n              -112.4066162109375,\n              46.5720787149159\n            ],\n            [\n              -112.4066162109375,\n              46.2\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","contact":"<p><a href=\"mailto:dc_co@usgs.gov\" data-mce-href=\"mailto:dc_co@usgs.gov\">Center Director</a>, <a href=\"https://minerals.usgs.gov/minerals/\" data-mce-href=\"https://minerals.usgs.gov/minerals/\">Central Mineral and Environmental Resources Science Center</a><br> U.S. Geological Survey<br>Box 25046, Mail Stop 973<br> Denver, CO 80225</p>","tableOfContents":"<ul><li>Introduction</li><li>Methods of Study</li><li>Discussion of Results</li><li>References Cited</li></ul>","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac9e4b07f02db67c9d5","contributors":{"authors":[{"text":"Fey, David L. dfey@usgs.gov","contributorId":713,"corporation":false,"usgs":true,"family":"Fey","given":"David","email":"dfey@usgs.gov","middleInitial":"L.","affiliations":[{"id":35995,"text":"Geology, Geophysics, and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":189311,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Desborough, George A.","contributorId":101661,"corporation":false,"usgs":true,"family":"Desborough","given":"George","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":189313,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Finney, Christopher J.","contributorId":61853,"corporation":false,"usgs":true,"family":"Finney","given":"Christopher","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":189312,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70127562,"text":"70127562 - 2000 - Relationships among sea-floor structure and benthic communities in Long Island Sound at regional and benthoscape scales","interactions":[],"lastModifiedDate":"2017-09-19T10:12:12","indexId":"70127562","displayToPublicDate":"2000-09-30T10:50:00","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2220,"text":"Journal of Coastal Research","active":true,"publicationSubtype":{"id":10}},"title":"Relationships among sea-floor structure and benthic communities in Long Island Sound at regional and benthoscape scales","docAbstract":"Long Island Sound is comprised of a rich and spatially heterogeneous mix of sea-floor environments which provide habitat for an equally diverse set of assemblages of soft-sediment communities. Information from recent research on the geomorphological and chemical attributes of these environments, as well as from studies of the hydrodynamics of the Sound, provide the opportunity to develop a landscape, or \"benthoscape\" framework for understanding the soft-sediment ecology of this estuary and for guiding future research focusing on structure and function at multiple spatial scales. This contribution reviews past research on benthic communities in Long Island Sound and addresses how they may be shaped by sea-floor characteristics at regional and benthoscape scales. At the regional scale (i.e. the entire Sound), differences in benthic community composition correspond to the distribution of general sedimentary environments. However, significant variation in community structure also occurs at the benthoscape scale (within regions) related to local variations in sediment properties, and physical and biogenic topographic features. Several topical areas in particular need further research in Long Island Sound, including temporal dynamics of benthic communities relative to sea-floor structure and the interaction between the dynamics of benthoscapes and hydrologic seascapes.","language":"English","publisher":"Coastal Education and Research Foundation","usgsCitation":"Zajac, R.N., Lewis, R., Poppe, L.J., Twichell, D.C., Vozarik, J., and DiGiacomo-Cohen, M.L., 2000, Relationships among sea-floor structure and benthic communities in Long Island Sound at regional and benthoscape scales: Journal of Coastal Research, v. 16, no. 3, p. 627-640.","productDescription":"14 p.","startPage":"627","endPage":"640","costCenters":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true},{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":294628,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":294627,"type":{"id":15,"text":"Index Page"},"url":"https://www.jstor.org/stable/view/4300075"}],"country":"United States","state":"Connecticut, New York","otherGeospatial":"Long Island Sound","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -73.827,40.7578 ], [ -73.827,41.3293 ], [ -72.0244,41.3293 ], [ -72.0244,40.7578 ], [ -73.827,40.7578 ] ] ] } } ] }","volume":"16","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"542bc649e4b0abfb4c8098a9","contributors":{"authors":[{"text":"Zajac, Roman N.","contributorId":89402,"corporation":false,"usgs":true,"family":"Zajac","given":"Roman","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":502413,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lewis, Ralph S.","contributorId":9288,"corporation":false,"usgs":true,"family":"Lewis","given":"Ralph S.","affiliations":[],"preferred":false,"id":502408,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Poppe, Larry J.","contributorId":55913,"corporation":false,"usgs":true,"family":"Poppe","given":"Larry","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":502411,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Twichell, David C.","contributorId":37730,"corporation":false,"usgs":true,"family":"Twichell","given":"David","email":"","middleInitial":"C.","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":502409,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Vozarik, Joseph","contributorId":82234,"corporation":false,"usgs":true,"family":"Vozarik","given":"Joseph","email":"","affiliations":[],"preferred":false,"id":502412,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"DiGiacomo-Cohen, Mary L.","contributorId":45253,"corporation":false,"usgs":true,"family":"DiGiacomo-Cohen","given":"Mary","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":502410,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70214413,"text":"70214413 - 2000 - Ecogeochemistry of the subsurface food web at pH 0–2.5 in Iron Mountain, California, U.S.A.","interactions":[],"lastModifiedDate":"2020-09-25T19:23:33.065411","indexId":"70214413","displayToPublicDate":"2000-09-25T14:13:40","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1919,"text":"Hydrobiologia","onlineIssn":"1573-5117","printIssn":"0018-8158","active":true,"publicationSubtype":{"id":10}},"title":"Ecogeochemistry of the subsurface food web at pH 0–2.5 in Iron Mountain, California, U.S.A.","docAbstract":"<div id=\"Abs1-section\" class=\"c-article-section\"><div id=\"Abs1-content\" class=\"c-article-section__content\"><p>Pyrite oxidation in the underground mining environment of Iron Mountain, California, has created the most acidic pH values ever reported in aquatic systems. Sulfate values as high as 120 000 mg l<sup>−1</sup><span>&nbsp;</span>and iron as high as 27 600 mg l<sup>−1</sup><span>&nbsp;</span>have been measured in the mine water, which also carries abundant other dissolved metals including Al, Zn, Cu, Cd, Mn, Sb and Pb. Extreme acidity and high metal concentrations apparently do not preclude the presence of an underground acidophilic food web, which has developed with bacterial biomass at the base and heliozoans as top predators. Slimes, oil-like films, flexible and inflexible stalactites, sediments, water and precipitates were found to have distinctive communities. A variety of filamentous and non-filamentous bacteria grew in slimes in water having pH values &lt;1.0. Fungal hyphae colonize stalactites dripping pH 1.0 water; they may help to form these drip structures. Motile hypotrichous ciliates and bdelloid rotifers are particularly abundant in slimes having a pH of 1.5. Holdfasts of the iron bacterium<span>&nbsp;</span><i>Leptothrix discophora</i><span>&nbsp;</span>attach to biofilms covering pools of standing water having a pH of 2.5 in the mine. The mine is not a closed environment – people, forced air flow and massive flushing during high intensity rainfall provide intermittent contact between the surface and underground habitats, so the mine ecosystem probably is not a restricted one.</p></div></div>","language":"English","publisher":"Springer","doi":"10.1023/A:1004050216537","usgsCitation":"Robbins, E.I., Rodgers, T.M., Alpers, C.N., and Nordstrom, D.K., 2000, Ecogeochemistry of the subsurface food web at pH 0–2.5 in Iron Mountain, California, U.S.A.: Hydrobiologia, v. 433, p. 15-23, https://doi.org/10.1023/A:1004050216537.","productDescription":"9 p.","startPage":"15","endPage":"23","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":378781,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","city":"Iron Mountain","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -122.57377624511719,\n              40.63010897068533\n            ],\n            [\n              -122.49000549316408,\n              40.63010897068533\n            ],\n            [\n              -122.49000549316408,\n              40.691051628010236\n            ],\n            [\n              -122.57377624511719,\n              40.691051628010236\n            ],\n            [\n              -122.57377624511719,\n              40.63010897068533\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"433","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Robbins, Eleanora I.","contributorId":44527,"corporation":false,"usgs":true,"family":"Robbins","given":"Eleanora","email":"","middleInitial":"I.","affiliations":[],"preferred":false,"id":799667,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rodgers, Teresa M.","contributorId":189420,"corporation":false,"usgs":false,"family":"Rodgers","given":"Teresa","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":799668,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Alpers, Charles N. 0000-0001-6945-7365 cnalpers@usgs.gov","orcid":"https://orcid.org/0000-0001-6945-7365","contributorId":411,"corporation":false,"usgs":true,"family":"Alpers","given":"Charles","email":"cnalpers@usgs.gov","middleInitial":"N.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":799669,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Nordstrom, D. Kirk 0000-0003-3283-5136 dkn@usgs.gov","orcid":"https://orcid.org/0000-0003-3283-5136","contributorId":749,"corporation":false,"usgs":true,"family":"Nordstrom","given":"D.","email":"dkn@usgs.gov","middleInitial":"Kirk","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":false,"id":799670,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
]}