{"pageNumber":"355","pageRowStart":"8850","pageSize":"25","recordCount":16446,"records":[{"id":70185231,"text":"70185231 - 2000 - Enrichment of Geobacter species in response to stimulation of Fe(III) reduction in sandy aquifer sediments","interactions":[],"lastModifiedDate":"2017-03-16T12:49:46","indexId":"70185231","displayToPublicDate":"2000-02-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2729,"text":"Microbial Ecology","active":true,"publicationSubtype":{"id":10}},"title":"Enrichment of Geobacter species in response to stimulation of Fe(III) reduction in sandy aquifer sediments","docAbstract":"

Engineered stimulation of Fe(III) has been proposed as a strategy to enhance the immobilization of radioactive and toxic metals in metal-contaminated subsurface environments. Therefore, laboratory and field studies were conducted to determine which microbial populations would respond to stimulation of Fe(III) reduction in the sediments of sandy aquifers. In laboratory studies, the addition of either various organic electron donors or electron shuttle compounds stimulated Fe(III) reduction and resulted in Geobacter sequences becoming important constituents of the Bacterial 16S rDNA sequences that could be detected with PCR amplification and denaturing gradient gel electrophoresis (DGGE). Quantification of Geobacteraceae sequences with a PCR most-probable-number technique indicated that the extent to which numbers of Geobacter increased was related to the degree of stimulation of Fe(III) reduction. Geothrix species were also enriched in some instances, but were orders of magnitude less numerous than Geobacter species. Shewanella species were not detected, even when organic compounds known to be electron donors for Shewanella species were used to stimulate Fe(III) reduction in the sediments. Geobacter species were also enriched in two field experiments in which Fe(III) reduction was stimulated with the addition of benzoate or aromatic hydrocarbons. The apparent growth of Geobacter species concurrent with increased Fe(III) reduction suggests that Geobacter species were responsible for much of the Fe(III) reduction in all of the stimulation approaches evaluated in three geographically distinct aquifers. Therefore, strategies for subsurface remediation that involve enhancing the activity of indigenous Fe(III)-reducing populations in aquifers should consider the physiological properties of Geobacter species in their treatment design.

","language":"English","publisher":"Springer-Verlag ","doi":"10.1007/s002480000018","usgsCitation":"Snoeyenbos-West, O., Nevin, K., Anderson, R.T., and Lovely, D., 2000, Enrichment of Geobacter species in response to stimulation of Fe(III) reduction in sandy aquifer sediments: Microbial Ecology, v. 39, no. 2, p. 153-167, https://doi.org/10.1007/s002480000018.","productDescription":"15 p.","startPage":"153","endPage":"167","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":337751,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"39","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58cba422e4b0849ce97dc78c","contributors":{"authors":[{"text":"Snoeyenbos-West, O.L.","contributorId":189427,"corporation":false,"usgs":false,"family":"Snoeyenbos-West","given":"O.L.","email":"","affiliations":[],"preferred":false,"id":684811,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Nevin, K.P.","contributorId":189428,"corporation":false,"usgs":false,"family":"Nevin","given":"K.P.","affiliations":[],"preferred":false,"id":684812,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Anderson, R. T.","contributorId":17614,"corporation":false,"usgs":true,"family":"Anderson","given":"R.","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":684813,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lovely, D.R.","contributorId":189429,"corporation":false,"usgs":false,"family":"Lovely","given":"D.R.","affiliations":[],"preferred":false,"id":684814,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70200410,"text":"70200410 - 2000 - Primary food resources in the Sacramento-San Joaquin Delta","interactions":[],"lastModifiedDate":"2018-10-16T16:23:28","indexId":"70200410","displayToPublicDate":"2000-01-01T16:23:19","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3914,"text":"Interagency Ecological Program Newsletter","active":true,"publicationSubtype":{"id":10}},"title":"Primary food resources in the Sacramento-San Joaquin Delta","docAbstract":"

The Sacramento-San Joaquin River Delta, a complex mosaic of tidal freshwater habitats, is now a focus of ecosystem rehabilitation because of changes in critical functions associated with its geographic location at the landestuary interface. One of these functions is the production, transport, and transformation of organic matter that constitutes the “primary food supply,” that is, the food supply to the base of the food web. Interest in the primary food supply is motivated by evidence for sub-optimal food quantity or quality at trophic levels that support fish recruitment, including primary consumers such as clams, mysids, cladocerans, rotifers, and native copepods. We used the historical data set to examine the magnitudes of the most important organic matter sources for the Delta, the factors underlying their interannual and longer-term variability, and the implications of ecosystem rehabilitation actions for these sources. Here, we present a summary of the first phase of the analysis, including the quantitative importance of different organic matter sources and some of the hydrological controls on their year-to-year variability. The full report of this first phaseincluding data sources, the methods of calculation, and references, is in press elsewhere (Jassby and Cloern forthcoming). The historical data analysis is part of a larger project in which measurements of stable isotopes and biogeochemical markers, and experiments on organic matter biodegradation and zooplankton growth rates, are being used collectively to define the primary food resources and their quality.

","language":"English","publisher":"Interagency Ecological Program for the San Francisco Estuary","usgsCitation":"Jassby, A.D., and Cloern, J.E., 2000, Primary food resources in the Sacramento-San Joaquin Delta: Interagency Ecological Program Newsletter, v. 13, no. 3, p. 21-25.","productDescription":"5 p.","startPage":"21","endPage":"25","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"links":[{"id":358449,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":358448,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://water.ca.gov/-/media/DWR-Website/Web-Pages/Programs/Environmental-Services/Interagency-Ecological-Program/Files/Newsletters/IEP-Newsletter-2000-Vol13-Issue3.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"California","otherGeospatial":"Sacramento-San Joaquin Delta","volume":"13","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5c10fbdde4b034bf6a8091b2","contributors":{"authors":[{"text":"Jassby, Alan D.","contributorId":66403,"corporation":false,"usgs":true,"family":"Jassby","given":"Alan","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":748742,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cloern, James E. 0000-0002-5880-6862 jecloern@usgs.gov","orcid":"https://orcid.org/0000-0002-5880-6862","contributorId":1488,"corporation":false,"usgs":true,"family":"Cloern","given":"James","email":"jecloern@usgs.gov","middleInitial":"E.","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":748743,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70073541,"text":"70073541 - 2000 - Hydrologic and geologic characteristics of the Yucca Mountain site relevant to the performance of a potential repository","interactions":[],"lastModifiedDate":"2021-04-09T13:14:53.172784","indexId":"70073541","displayToPublicDate":"2000-01-01T14:46:00","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1724,"text":"GSA Field Guides","active":true,"publicationSubtype":{"id":10}},"title":"Hydrologic and geologic characteristics of the Yucca Mountain site relevant to the performance of a potential repository","docAbstract":"Yucca Mountain, located ~100 mi northwest of Las Vegas, Nevada, has been designated by Congress as a site to be characterized for a potential mined geologic repository for high-level radioactive waste. This field trip will examine the regional geologic and hydrologic setting for Yucca Mountain, as well as specific results of the site characterization program. The first day focuses on the regional setting with emphasis on current and paleo hydrology, which are both of critical concern for predicting future performance of a potential repository. Morning stops will be southern Nevada and afternoon stops will be in Death Valley. The second day will be spent at Yucca Mountain. The field trip will visit the underground testing sites in the \"Exploratory Studies Facility\" and the \"Busted Butte Unsaturated Zone Transport Field Test\" plus several surface-based testing sites. Much of the work at the site has concentrated on studies of the unsaturated zone, an element of the hydrologic system that historically has received little attention. Discussions during the second day will compromise selected topics of Yucca Mountain geology, hydrology and geochemistry and will include the probabilistic volcanic hazard analysis and the seismicity and seismic hazard in the Yucca Mountain area. Evening discussions will address modeling of regional groundwater flow, the results of recent hydrologic studies by the Nye County Nuclear Waste Program Office, and the relationship of the geology and hydrology of Yucca Mountain to the performance of a potential repository. Day 3 will examine the geologic framework and hydrology of the Pahute Mesa-Oasis Valley Groundwater Basin and then will continue to Reno via Hawthorne, Nevada and the Walker Lake area.","language":"English","publisher":"Geological Society of America","doi":"10.1130/0-8137-0002-7.383","usgsCitation":"Levich, R., Linden, R., Patterson, R., and Stuckless, J., 2000, Hydrologic and geologic characteristics of the Yucca Mountain site relevant to the performance of a potential repository: GSA Field Guides, v. 2, p. 383-414, https://doi.org/10.1130/0-8137-0002-7.383.","productDescription":"32 p.","startPage":"383","endPage":"414","numberOfPages":"32","costCenters":[],"links":[{"id":281259,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Nevada","otherGeospatial":"Yucca Mountain","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -117.0,36.0 ], [ -117.0,37.0 ], [ -115.0,37.0 ], [ -115.0,36.0 ], [ -117.0,36.0 ] ] ] } } ] }","volume":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd615ee4b0b290850fd7c7","contributors":{"authors":[{"text":"Levich, R.A.","contributorId":68553,"corporation":false,"usgs":true,"family":"Levich","given":"R.A.","affiliations":[],"preferred":false,"id":488909,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Linden, R.M.","contributorId":66007,"corporation":false,"usgs":true,"family":"Linden","given":"R.M.","email":"","affiliations":[],"preferred":false,"id":488908,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Patterson, R.L.","contributorId":24272,"corporation":false,"usgs":true,"family":"Patterson","given":"R.L.","email":"","affiliations":[],"preferred":false,"id":488907,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Stuckless, J. S.","contributorId":6060,"corporation":false,"usgs":true,"family":"Stuckless","given":"J. S.","affiliations":[],"preferred":false,"id":488906,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70068930,"text":"70068930 - 2000 - Nitrogen biogeochemistry and surface-subsurface exchange in streams","interactions":[],"lastModifiedDate":"2018-09-10T07:29:46","indexId":"70068930","displayToPublicDate":"2000-01-01T14:21:41","publicationYear":"2000","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"chapter":"8","title":"Nitrogen biogeochemistry and surface-subsurface exchange in streams","docAbstract":"

No abstract available. 

","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/B978-012389845-6/50009-0","usgsCitation":"Duff, J.H., and Triska, F.J., 2000, Nitrogen biogeochemistry and surface-subsurface exchange in streams, chap. 8 of Streams and ground waters, p. 197-220, https://doi.org/10.1016/B978-012389845-6/50009-0.","productDescription":"24 p.","startPage":"197","endPage":"220","costCenters":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":280908,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Arizona;California;Colorado;Minnesota","otherGeospatial":"Little Lost Man Creek;Platte River;Shingobee River;Sycamore Creek","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -124.46,31.32 ], [ -124.46,49.41 ], [ -89.47,49.41 ], [ -89.47,31.32 ], [ -124.46,31.32 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd691ae4b0b290851027ce","contributors":{"editors":[{"text":"Jones, Jeremy B.","contributorId":113650,"corporation":false,"usgs":true,"family":"Jones","given":"Jeremy","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":509688,"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":509687,"contributorType":{"id":2,"text":"Editors"},"rank":2}],"authors":[{"text":"Duff, John H. jhduff@usgs.gov","contributorId":961,"corporation":false,"usgs":true,"family":"Duff","given":"John","email":"jhduff@usgs.gov","middleInitial":"H.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true},{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":488180,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Triska, Frank J.","contributorId":88781,"corporation":false,"usgs":true,"family":"Triska","given":"Frank","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":488181,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70074108,"text":"70074108 - 2000 - Can contaminant transport models predict breakthrough?","interactions":[],"lastModifiedDate":"2018-12-14T06:42:02","indexId":"70074108","displayToPublicDate":"2000-01-01T14:15:00","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1866,"text":"Groundwater Monitoring & Remediation","active":true,"publicationSubtype":{"id":10}},"title":"Can contaminant transport models predict breakthrough?","docAbstract":"A solute breakthrough curve measured during a two-well tracer test was successfully predicted in 1986 using specialized contaminant transport models. Water was injected into a confined, unconsolidated sand aquifer and pumped out 125 feet (38.3 m) away at the same steady rate. The injected water was spiked with bromide for over three days; the outflow concentration was monitored for a month. Based on previous tests, the horizontal hydraulic conductivity of the thick aquifer varied by a factor of seven among 12 layers. Assuming stratified flow with small dispersivities, two research groups accurately predicted breakthrough with three-dimensional (12-layer) models using curvilinear elements following the arc-shaped flowlines in this test.\n\nCan contaminant transport models commonly used in industry, that use rectangular blocks, also reproduce this breakthrough curve? The two-well test was simulated with four MODFLOW-based models, MT3D (FD and HMOC options), MODFLOWT, MOC3D, and MODFLOW-SURFACT.\n\nUsing the same 12 layers and small dispersivity used in the successful 1986 simulations, these models fit almost as accurately as the models using curvilinear blocks. Subtle variations in the curves illustrate differences among the codes. Sensitivities of the results to number and size of grid blocks, number of layers, boundary conditions, and values of dispersivity and porosity are briefly presented. The fit between calculated and measured breakthrough curves degenerated as the number of layers and/or grid blocks decreased, reflecting a loss of model predictive power as the level of characterization lessened. Therefore, the breakthrough curve for most field sites can be predicted only qualitatively due to limited characterization of the hydrogeology and contaminant source strength.","language":"English","publisher":"Wiley","doi":"10.1111/j.1745-6592.2000.tb00295.x","usgsCitation":"Peng, W., Hampton, D.R., Konikow, L.F., Kambham, K., and Benegar, J.J., 2000, Can contaminant transport models predict breakthrough?: Groundwater Monitoring & Remediation, v. 20, no. 4, p. 104-113, https://doi.org/10.1111/j.1745-6592.2000.tb00295.x.","productDescription":"10 p.","startPage":"104","endPage":"113","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":281587,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":281586,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1745-6592.2000.tb00295.x"}],"country":"United States","state":"Alabama","city":"Mobile","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -88.221253,30.560374 ], [ -88.221253,30.843458 ], [ -87.956616,30.843458 ], [ -87.956616,30.560374 ], [ -88.221253,30.560374 ] ] ] } } ] }","volume":"20","issue":"4","noUsgsAuthors":false,"publicationDate":"2007-02-22","publicationStatus":"PW","scienceBaseUri":"53cd501de4b0b290850f3217","contributors":{"authors":[{"text":"Peng, Wei-Shyuan","contributorId":108389,"corporation":false,"usgs":true,"family":"Peng","given":"Wei-Shyuan","email":"","affiliations":[],"preferred":false,"id":489415,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hampton, Duane R.","contributorId":65377,"corporation":false,"usgs":true,"family":"Hampton","given":"Duane","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":489413,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Konikow, Leonard F. 0000-0002-0940-3856 lkonikow@usgs.gov","orcid":"https://orcid.org/0000-0002-0940-3856","contributorId":158,"corporation":false,"usgs":true,"family":"Konikow","given":"Leonard","email":"lkonikow@usgs.gov","middleInitial":"F.","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":489411,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kambham, Kiran","contributorId":100284,"corporation":false,"usgs":true,"family":"Kambham","given":"Kiran","email":"","affiliations":[],"preferred":false,"id":489414,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Benegar, Jeffery J.","contributorId":8760,"corporation":false,"usgs":true,"family":"Benegar","given":"Jeffery","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":489412,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70074099,"text":"70074099 - 2000 - Advances in the hydrogeochemistry and microbiology of acid mine waters","interactions":[],"lastModifiedDate":"2018-12-07T05:54:52","indexId":"70074099","displayToPublicDate":"2000-01-01T13:39:00","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2020,"text":"International Geology Review","active":true,"publicationSubtype":{"id":10}},"title":"Advances in the hydrogeochemistry and microbiology of acid mine waters","docAbstract":"The last decade has witnessed a plethora of research related to the hydrogeochemistry and microbiology of acid mine waters and associated tailings and waste-rock waters. Numerous books, reviews, technical papers, and proceedings have been published that examine the complex bio-geochemical process of sulfide mineral oxidation, develop and apply geochemical models to site characterization, and characterize the microbial ecology of these environments. This review summarizes many of these recent works, and provides references for those investigating this field. Comparisons of measured versus calculated Eh and measured versus calculated pH for water samples from several field sites demonstrate the reliability of some current geochemical models for aqueous speciation and mass balances. Geochemical models are not, however, used to predict accurately time-dependent processes but to improve our understanding of these systems and to constrain possible processes that contribute to actual or potential water quality issues. Microbiological studies are demonstrating that there is much we have yet to learn about the types of different microorganisms and their function and ecology in mine-waste environments. A broad diversity of green algae, bacteria, archaea, yeasts, and fungi are encountered in acid mine waters, and a better understanding of their ecology and function may potentially enhance remediation possibilities as well as our understanding of the evolution of life.","language":"English","publisher":"Taylor & Francis","doi":"10.1080/00206810009465095","usgsCitation":"Nordstrom, D.K., 2000, Advances in the hydrogeochemistry and microbiology of acid mine waters: International Geology Review, v. 42, no. 6, p. 499-515, https://doi.org/10.1080/00206810009465095.","productDescription":"17 p.","startPage":"499","endPage":"515","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":281582,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1080/00206810009465095"},{"id":281583,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"42","issue":"6","noUsgsAuthors":false,"publicationDate":"2010-07-06","publicationStatus":"PW","scienceBaseUri":"53cd4b3ae4b0b290850f03e9","contributors":{"authors":[{"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":489400,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70073651,"text":"70073651 - 2000 - Applications of imaging spectroscopy data: A case study at Summitville, Colorado","interactions":[],"lastModifiedDate":"2018-05-03T16:15:42","indexId":"70073651","displayToPublicDate":"2000-01-01T13:24:00","publicationYear":"2000","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Applications of imaging spectroscopy data: A case study at Summitville, Colorado","docAbstract":"

From 1985 through 1992, the Summitville open-pit mine produced gold from lowgrade ore using cyanide heap-leach techniques, a method to extract gold whereby the ore pile is sprayed with water containing cyanide, which dissolves the minute gold grains. Environmental problems due to mining activity at Summitville include significant increases in acidic and metal-rich drainage from the site, leakage of cyanide-bearing solutions from the heap-leach pad into an underdrain system, and several surface leaks of cyanide-bearing solutions into the Wightman Fork of the Alamosa River. In general, drainage from the Summitville mine moves downslope into the Wightman Fork, a small tributary of the Alamosa River, which in turn flows east into the Terrace Reservoir before entering the agricultural lands of the San Luis Valley. The increase in the trace-metal burden of the Alamosa River watershed due to the mining activities at Summitville is of concern to farmers and fisherman, as well as Federal and State of Colorado agencies having responsibility for land stewardship. 

The environment of the Summitville area is a result of 1) its geologic evolution, that culminated in the formation of precious-metal mineral deposits; and 2) previous metal mining activity. Mining accentuates, accelerates, and pertubates natural geochemical processes. The development of underground workings, open pits, mill tailings, and spoil heaps and the extractive processing of ore enhances the likelihood of releasing chemicals and elements to the surrounding areas and at increased rates relative to unmined areas. Both mined and unmined mineralized areas can produce acid drainage from the formation and movement of highly acidic water rich in heavy metals. This acidic water forms principally through the chemical reaction of oxygenated surface water and shallow subsurface water with rocks that contain sulfide minerals, producing sulphuric acid. Heavy metals can be leached by the acid solution that comes in contact with mineralized rocks, a process that may be enhanced by bacterial action. The resulting fluids may be highly toxic and, when mixed with groundwater, surface water, and soil, may have harmful effects on humans, animals, and plants. Thus, understanding the geologic and hydrologic history of this area is a critical piece of the environmental puzzle in the Summitville area.

The Summitville mine operators had ceased active mining and begun environmental remediation, including treatment of the heap-leach pile and installation of a water-treatment facility, when it declared bankruptcy in December 1992 and abandoned the mine site. The U.S. Environmental Protection Agency (EPA) immediately took over the Summitville site under EPA Superfund Emergency Response authority.

Summitville has focused public attention on the environmental effects of modern mineral-resource development. Soon after the mine was abandoned, Federal, State, and local agencies, along with Alamosa River water users and private companies, began extensive studies at the mine site and surrounding areas. These studies included analysis of water, soil, livestock and vegetation. The role of the U.S. Geological Survey (USGS) was to provide geologic, hydrologic and agricultural information about the mine and surrounding area and to describe and evaluate the environmental condition of the Summitville mine and the downstream effects of the mine on the San Luis Valley (King 1995).

","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Remote sensing for site characterization","language":"English","publisher":"Springer","doi":"10.1007/978-3-642-56978-4_6","usgsCitation":"King, T., Clark, R.N., and Swayze, G.A., 2000, Applications of imaging spectroscopy data: A case study at Summitville, Colorado, chap. of Remote sensing for site characterization, p. 164-185, https://doi.org/10.1007/978-3-642-56978-4_6.","productDescription":"22 p.","startPage":"164","endPage":"185","numberOfPages":"22","costCenters":[{"id":35995,"text":"Geology, Geophysics, and Geochemistry Science Center","active":true,"usgs":true}],"links":[{"id":281289,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Colorado","city":"Summitville","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd4da5e4b0b290850f19f7","contributors":{"authors":[{"text":"King, Trude","contributorId":29831,"corporation":false,"usgs":true,"family":"King","given":"Trude","email":"","affiliations":[],"preferred":false,"id":488979,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Clark, Roger N. 0000-0002-7021-1220 rclark@usgs.gov","orcid":"https://orcid.org/0000-0002-7021-1220","contributorId":515,"corporation":false,"usgs":true,"family":"Clark","given":"Roger","email":"rclark@usgs.gov","middleInitial":"N.","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":488977,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Swayze, Gregg A. 0000-0002-1814-7823 gswayze@usgs.gov","orcid":"https://orcid.org/0000-0002-1814-7823","contributorId":518,"corporation":false,"usgs":true,"family":"Swayze","given":"Gregg","email":"gswayze@usgs.gov","middleInitial":"A.","affiliations":[{"id":309,"text":"Geology and Geophysics Science Center","active":true,"usgs":true},{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":488978,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70093939,"text":"70093939 - 2000 - Hydrologic and geologic characteristics of the Yucca Mountain site relevant to the performance of a potential repository: Day 1, Las Vegas, Nevada to Pahrump, Nevada: Stop 8. Trench 14","interactions":[],"lastModifiedDate":"2021-04-09T13:17:43.970889","indexId":"70093939","displayToPublicDate":"2000-01-01T12:51:00","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1724,"text":"GSA Field Guides","active":true,"publicationSubtype":{"id":10}},"title":"Hydrologic and geologic characteristics of the Yucca Mountain site relevant to the performance of a potential repository: Day 1, Las Vegas, Nevada to Pahrump, Nevada: Stop 8. Trench 14","docAbstract":"No abstract available.","language":"English","publisher":"Geological Society of America","doi":"10.1130/0-8137-0002-7.383","usgsCitation":"Stuckless, J., 2000, Hydrologic and geologic characteristics of the Yucca Mountain site relevant to the performance of a potential repository: Day 1, Las Vegas, Nevada to Pahrump, Nevada: Stop 8. Trench 14: GSA Field Guides, v. 2, p. 404-405, https://doi.org/10.1130/0-8137-0002-7.383.","productDescription":"2 p.","startPage":"404","endPage":"405","numberOfPages":"2","costCenters":[],"links":[{"id":282407,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"Yucca Mountain","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -117.0,36.0 ], [ -117.0,37.0 ], [ -115.0,37.0 ], [ -115.0,36.0 ], [ -117.0,36.0 ] ] ] } } ] }","volume":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd615ee4b0b290850fd7cf","contributors":{"authors":[{"text":"Stuckless, J. S.","contributorId":6060,"corporation":false,"usgs":true,"family":"Stuckless","given":"J. S.","affiliations":[],"preferred":false,"id":490362,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70093938,"text":"70093938 - 2000 - Hydrologic and geologic characteristics of the Yucca Mountain site relevant to the performance of a potential repository: Day 1, Las Vegas, Nevada to Pahrump, Nevada: Stop 4. Travertine Point, Furnace Creek Wash, Death Valley, California","interactions":[],"lastModifiedDate":"2021-04-09T13:18:07.72125","indexId":"70093938","displayToPublicDate":"2000-01-01T12:47:00","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1724,"text":"GSA Field Guides","active":true,"publicationSubtype":{"id":10}},"title":"Hydrologic and geologic characteristics of the Yucca Mountain site relevant to the performance of a potential repository: Day 1, Las Vegas, Nevada to Pahrump, Nevada: Stop 4. Travertine Point, Furnace Creek Wash, Death Valley, California","docAbstract":"No abstract available.","language":"English","publisher":"Geological Society of America","doi":"10.1130/0-8137-0002-7.383","usgsCitation":"Stuckless, J., 2000, Hydrologic and geologic characteristics of the Yucca Mountain site relevant to the performance of a potential repository: Day 1, Las Vegas, Nevada to Pahrump, Nevada: Stop 4. Travertine Point, Furnace Creek Wash, Death Valley, California: GSA Field Guides, v. 2, p. 394-396, https://doi.org/10.1130/0-8137-0002-7.383.","productDescription":"3 p.","startPage":"394","endPage":"396","numberOfPages":"3","costCenters":[],"links":[{"id":282404,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"Death Valley;Furnace Creek Wash","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -118.0019,35.6332 ], [ -118.0019,37.3473 ], [ -116.2761,37.3473 ], [ -116.2761,35.6332 ], [ -118.0019,35.6332 ] ] ] } } ] }","volume":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd615ee4b0b290850fd7cb","contributors":{"authors":[{"text":"Stuckless, J. S.","contributorId":6060,"corporation":false,"usgs":true,"family":"Stuckless","given":"J. S.","affiliations":[],"preferred":false,"id":490361,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70094988,"text":"70094988 - 2000 - Elements in cottonwood trees as an indicator of ground water contaminated by landfill leachate","interactions":[],"lastModifiedDate":"2018-12-10T08:37:24","indexId":"70094988","displayToPublicDate":"2000-01-01T12:39:00","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1866,"text":"Groundwater Monitoring & Remediation","active":true,"publicationSubtype":{"id":10}},"title":"Elements in cottonwood trees as an indicator of ground water contaminated by landfill leachate","docAbstract":"Ground water at the Norman Landfill Research Site is contaminated by a leachate plume emanating from a closed, unlined landfill formerly operated by the city of Norman, Oklahoma, Ground water contaminated by the leachate plume is known to be elevated in the concentration of many, organic and inorganic constituents. Specific conductance, alkalinity, chloride, dissolved organic carbon, boron, sodium, strontium, and deuterium in ground water are considered to be indicators of the leachate plume at this site.\n\nLeaf samples of broad-leafed cottonwood, Populus deltoides, were collected from 57 sites around the closed landfill. Cottonwood, a phreatophyte or “well plant,” functions as a & surrogate well and serves as a ground water quality sampler. The leaf samples were combusted to ash and analyzed by instrumental neutron activation for 35 elements and by prompt-gamma instrumental neutron activation, for boron. A monitoring well was located within a few meters of a sampled cottonwood tree at 15 of the 57 sites, and ground water samples were collected from these monitoring wells simultaneously with a leaf sample. The chemical analyses of the ground water and leaf samples from these 15 sites indicated that boron, bromine, sodium, and strontium concentrations in leaves were significantly correlated with leachate indicator constituents in ground water. A point-plot map of selected percentiles indicated high concentrations of boron, bromine, and sodium in leaf ash from sites downgradient of the most recent landfill and from older landfills nearby.\n\nData from leaf analysis greatly extended the known areal extent of the leachate plume previously determined from a network of monitoring wells and geophysical surveys. This phytosgeochemical study provided a cost-effective method for assessing the extent of a leachate plume from an old landfill. Such a method may be useful as a preliminary sampling tool to guide the design of hydrogeochemical and geophysical studies.","language":"English","publisher":"Wiley","doi":"10.1111/j.1745-6592.2000.tb00258.x","usgsCitation":"Erdman, J.A., and Christenson, S., 2000, Elements in cottonwood trees as an indicator of ground water contaminated by landfill leachate: Groundwater Monitoring & Remediation, v. 20, no. 1, p. 120-126, https://doi.org/10.1111/j.1745-6592.2000.tb00258.x.","productDescription":"7 p.","startPage":"120","endPage":"126","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":282828,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":282827,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1745-6592.2000.tb00258.x"}],"country":"United States","state":"Oklahoma","city":"Norman","otherGeospatial":"Norman Landfill Research Site","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -97.547822,35.145318 ], [ -97.547822,35.348324 ], [ -97.176918,35.348324 ], [ -97.176918,35.145318 ], [ -97.547822,35.145318 ] ] ] } } ] }","volume":"20","issue":"1","noUsgsAuthors":false,"publicationDate":"2007-02-22","publicationStatus":"PW","scienceBaseUri":"53cd5757e4b0b290850f76bc","contributors":{"authors":[{"text":"Erdman, James A.","contributorId":37748,"corporation":false,"usgs":true,"family":"Erdman","given":"James","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":491027,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Christenson, Scott","contributorId":59128,"corporation":false,"usgs":true,"family":"Christenson","given":"Scott","affiliations":[],"preferred":false,"id":491028,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70094985,"text":"70094985 - 2000 - Hydrology","interactions":[],"lastModifiedDate":"2014-02-26T12:34:51","indexId":"70094985","displayToPublicDate":"2000-01-01T11:54:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":1,"text":"Federal Government Series"},"seriesTitle":{"id":32,"text":"General Technical Report","active":false,"publicationSubtype":{"id":1}},"seriesNumber":"SRS-38","title":"Hydrology","docAbstract":"Hydrologic process are the main determinants of the type of wetland located on a site. Precipitation, groundwater, or flooding interact with soil properties and geomorphic setting to yield a complex matrix of conditions that control groundwater flux, water storage and discharge, water chemistry, biotic productivity, biodiversity, and biogeochemical cycling. Hydroperiod affects many abiotic factors that in turn determine plant and animal species composition, biodiversity, primary and secondary productivity, accumulation, of organic matter, and nutrient cycling. Because the hydrologic regime has a major influence on wetland functioning, understanding how hydrologic changes influence ecosystem processes is essential, especially in light of the pressures placed on remaining wetlands by society's demands for water resources and by potential global changes in climate.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"The Coosawhatchie Bottomland Ecosystem Study: a report on the development of reference wetland","largerWorkSubtype":{"id":1,"text":"Federal Government Series"},"language":"English","publisher":"United States Department of Agriculture","publisherLocation":"Ashville, NC","usgsCitation":"Eisenbies, M.H., and Hughes, W.B., 2000, Hydrology: General Technical Report SRS-38, 4 p.","productDescription":"4 p.","startPage":"10","endPage":"13","numberOfPages":"4","costCenters":[],"links":[{"id":282826,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"South Carolina","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -81.3263,32.7027 ], [ -81.3263,33.2814 ], [ -80.37,33.2814 ], [ -80.37,32.7027 ], [ -81.3263,32.7027 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd61a0e4b0b290850fda63","contributors":{"authors":[{"text":"Eisenbies, Mark H.","contributorId":38896,"corporation":false,"usgs":true,"family":"Eisenbies","given":"Mark","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":491025,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hughes, W. Brian","contributorId":84353,"corporation":false,"usgs":true,"family":"Hughes","given":"W.","email":"","middleInitial":"Brian","affiliations":[],"preferred":false,"id":491026,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70093574,"text":"70093574 - 2000 - Hydrologic and geologic characteristics of the Yucca Mountain site relevant to the performance of a potential repository: Day 1, Las Vegas, Nevada to Pahrump, Nevada: Stop 2A. Devils Hole, a tectonic cave in southern Nevada with a continuous 0.5 million-year-long paleoclimate record","interactions":[],"lastModifiedDate":"2021-04-09T13:18:33.302705","indexId":"70093574","displayToPublicDate":"2000-01-01T11:53:00","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1724,"text":"GSA Field Guides","active":true,"publicationSubtype":{"id":10}},"title":"Hydrologic and geologic characteristics of the Yucca Mountain site relevant to the performance of a potential repository: Day 1, Las Vegas, Nevada to Pahrump, Nevada: Stop 2A. Devils Hole, a tectonic cave in southern Nevada with a continuous 0.5 million-year-long paleoclimate record","docAbstract":"No abstract available.","language":"English","publisher":"Geological Society of America","doi":"10.1130/0-8137-0002-7.383","usgsCitation":"Riggs, A., Winograd, I., Carr, W.J., Kolesar, P.T., and Hoffman, R., 2000, Hydrologic and geologic characteristics of the Yucca Mountain site relevant to the performance of a potential repository: Day 1, Las Vegas, Nevada to Pahrump, Nevada: Stop 2A. Devils Hole, a tectonic cave in southern Nevada with a continuous 0.5 million-year-long paleoclimate record: GSA Field Guides, v. 2, p. 387-391, https://doi.org/10.1130/0-8137-0002-7.383.","productDescription":"5 p.","startPage":"387","endPage":"391","numberOfPages":"5","costCenters":[],"links":[{"id":282331,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Nevada","otherGeospatial":"Devils Hole","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -117.0,36.0 ], [ -117.0,37.0 ], [ -115.0,37.0 ], [ -115.0,36.0 ], [ -117.0,36.0 ] ] ] } } ] }","volume":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd615ee4b0b290850fd7c9","contributors":{"authors":[{"text":"Riggs, A.C.","contributorId":41462,"corporation":false,"usgs":true,"family":"Riggs","given":"A.C.","email":"","affiliations":[],"preferred":false,"id":490054,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Winograd, I.J.","contributorId":10408,"corporation":false,"usgs":true,"family":"Winograd","given":"I.J.","affiliations":[],"preferred":false,"id":490051,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Carr, W. J.","contributorId":9245,"corporation":false,"usgs":true,"family":"Carr","given":"W.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":490050,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kolesar, Peter T.","contributorId":32296,"corporation":false,"usgs":true,"family":"Kolesar","given":"Peter","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":490052,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Hoffman, R.J.","contributorId":38582,"corporation":false,"usgs":true,"family":"Hoffman","given":"R.J.","email":"","affiliations":[],"preferred":false,"id":490053,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70093929,"text":"70093929 - 2000 - Hydrologic and geologic characteristics of the Yucca Mountain site relevant to the performance of a potential repository: Day 1, Las Vegas, Nevada to Pahrump, Nevada: Stop 6A. Keane Wonder Spring and regional groundwater flow in the Death Valley region","interactions":[],"lastModifiedDate":"2021-04-09T13:19:00.049563","indexId":"70093929","displayToPublicDate":"2000-01-01T11:47:00","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1724,"text":"GSA Field Guides","active":true,"publicationSubtype":{"id":10}},"title":"Hydrologic and geologic characteristics of the Yucca Mountain site relevant to the performance of a potential repository: Day 1, Las Vegas, Nevada to Pahrump, Nevada: Stop 6A. Keane Wonder Spring and regional groundwater flow in the Death Valley region","docAbstract":"Yucca Mountain, located ~100 mi northwest of Las Vegas, Nevada, has been designated by Congress as a site to be characterized for a potential mined geologic repository for high-level radioactive waste. This field trip will examine the regional geologic and hydrologic setting for Yucca Mountain, as well as specific results of the site characterization program, The first day focuses on the regional seeing with emphasis on current and paleo hydrology, which are both of critical concern for predicting future performance of a potential repository. Morning stops will be in southern Nevada and afternoon stops will be in Death Valley. The second day will be spent at Yucca Mountain. The filed trip will visit the underground testing sites in the \"Exploratory Studies Facility\" and the \"Busted Butte Unsaturated Zone Transport Field Test\" plus several surface-based testing sites. Much of the work at the site has concentrated on studies of the unsaturated zone, and element of the hydrologic system that historically has received little attention. Discussions during the second day will comprise selected topics of Yucca Mountain geology, mic hazard in the Yucca Mountain area. Evening discussions will address modeling of regional groundwater flow, the geology and hydrology of Yucca Mountain to the performance of a potential repository. Day 3 will examine the geologic framework and hydrology of the Pahute Mesa-Oasis Valley Groundwater Basin and then will continue to Reno via Hawthorne, Nevada and the Walker Lake area.","language":"English","publisher":"Geological Society of America","doi":"10.1130/0-8137-0002-7.383","usgsCitation":"Steinkampf, W., 2000, Hydrologic and geologic characteristics of the Yucca Mountain site relevant to the performance of a potential repository: Day 1, Las Vegas, Nevada to Pahrump, Nevada: Stop 6A. Keane Wonder Spring and regional groundwater flow in the Death Valley region: GSA Field Guides, v. 2, p. 398-398, https://doi.org/10.1130/0-8137-0002-7.383.","productDescription":"1 p.","startPage":"398","endPage":"398","numberOfPages":"1","costCenters":[],"links":[{"id":282401,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"Death Valley;Keane Wonder Spring","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -118.0019,35.6332 ], [ -118.0019,37.3473 ], [ -116.2761,37.3473 ], [ -116.2761,35.6332 ], [ -118.0019,35.6332 ] ] ] } } ] }","volume":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd615ee4b0b290850fd7cd","contributors":{"authors":[{"text":"Steinkampf, W.C.","contributorId":8137,"corporation":false,"usgs":true,"family":"Steinkampf","given":"W.C.","affiliations":[],"preferred":false,"id":490352,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70216505,"text":"70216505 - 2000 - Ground-water microbiology and geochemistry","interactions":[],"lastModifiedDate":"2020-11-24T16:27:27.055116","indexId":"70216505","displayToPublicDate":"2000-01-01T11:27:16","publicationYear":"2000","noYear":false,"publicationType":{"id":4,"text":"Book"},"title":"Ground-water microbiology and geochemistry","docAbstract":"

Up-to-date coverage and a unique, multidisciplinary approach

The ongoing effort to protect our valuable ground-water resources necessarily involves scientists and engineers from many disciplines. Ground-Water Microbiology and Geochemistry, Second Edition is designed to bridge the historical lack of communication among these disciplines by detailing-in language that cuts across specialties-the impact of microorganisms and microbial processes on ground-water systems.

Carefully revised to reflect the many recent discoveries that have been made in the field, the Second Edition begins with an overview of microbiology, ideal for hydrologists and others who may lack formal training in the field. These initial chapters systematically cover the kinds of microorganisms found in subsurface environments, focusing on their growth, metabolism, genetics, and ecology.

The second part of the book offers a hydrologic perspective on how microbial processes affect ground-water geochemistry in pristine systems. It also introduces the different classes of ground-water systems, and gives an overview of techniques for sampling subsurface environments. Readers gain an understanding of biogeochemical cycling in ground-water systems-in coverage unique to this book-and how ground-water chemistry can be used to study microbial processes in aquifer systems.

The final section of the book deals with the biodegradation of human-introduced contaminants in ground-water systems, with an up-to-date review of the physiology, biochemistry, and redox conditions that favor biodegradation processes.

Ground-Water Microbiology and Geochemistry, Second Edition is important reading for geoscientists, hydrologists, and environmental engineers, as well as for water planners and lawyers involved in environmental issues. It also serves as a compelling text for upper-level undergraduate and graduate courses in ground-water chemistry.

","language":"English","publisher":"Wiley","isbn":"978-0-471-34852-8","usgsCitation":"Chapelle, F.H., 2000, Ground-water microbiology and geochemistry (2nd), 496 p.","productDescription":"496 p.","costCenters":[],"links":[{"id":380745,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":380744,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://www.wiley.com/en-us/Ground+Water+Microbiology+and+Geochemistry%2C+2nd+Edition-p-9780471348528","linkFileType":{"id":5,"text":"html"}}],"edition":"2nd","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Chapelle, Francis H. chapelle@usgs.gov","contributorId":1350,"corporation":false,"usgs":true,"family":"Chapelle","given":"Francis","email":"chapelle@usgs.gov","middleInitial":"H.","affiliations":[{"id":13634,"text":"South Atlantic Water Science Center","active":true,"usgs":true},{"id":559,"text":"South Carolina Water Science Center","active":true,"usgs":true}],"preferred":true,"id":805503,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70073336,"text":"70073336 - 2000 - Hydrologic budget of the late Oligocene Lake Creede and the evolution of the upper Rio Grande drainage system","interactions":[],"lastModifiedDate":"2019-12-02T06:27:33","indexId":"70073336","displayToPublicDate":"2000-01-01T10:41:00","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1727,"text":"GSA Special Papers","active":true,"publicationSubtype":{"id":10}},"title":"Hydrologic budget of the late Oligocene Lake Creede and the evolution of the upper Rio Grande drainage system","docAbstract":"The filling history, hydrologic budget, and geomorphic development of ancient Lake Creede and its tributary basin are evaluated to determine the factors that controlled its character. The lake filled the Creede caldera that formed in the late Oligocene as a consequence of the eruption of the Snowshoe Mountain Tuff. The caldera's sedimentary fill accumlated to a depth of about 1.26 km and had a volume of about 89 km3. The highest lake level was ~3300 m (10,800 ft) present altitude before it drained eastward across a broad volcanic plateau as the ancestral Rio Grande. A tributary canyon several hundred meters deep was cut into hard rhyolite in the north wall of the caldera before the lake was more than half full; its presence demonstrates that ancient Lake Creede filled slowly and thus occupied a long-lived, closed basin. The slow filling rate is incompatible with the present water flux through the Creede caldera basin, because such a flow would fill the basin geologically instantaneously. This mismatch, together with the recognition that the Oligocene climate was similar to that of today, forces the reexamination of the hydrologic and geomorphic history of the caldera. That appraisal shows that the caldera cannot have resurged rapidly immediately after caldera collapse, and that ancient watershed must have been lass than half as large as the present upper Rio Grande basin. The ancient lake had a more or less constant surface area of about 200 km2 that approximated a steady-state condition between inflow and evaporation. Although the lake level fluctuated with climatic variations, its surface elevation steadily climbed as sediment accumulated, accelerating as resurgance and dome growth usurped spacewithin the basin. It could have had one playa stage early in its development and another after the basin had nearly filled with sediment, but there is no direct evidence for either. At least the lower half of the sedimentary column (the part sampled by the scientific drilling) formed in an euxinic environment. This argues against a persistent early playa, although evaporative accumulation of brine was inevitable. When the rate of resurgance was rapid relative to sedimentary infilling, the lake would have been deep (i.e., bordered by bedrock rather than sedimentary fans). The geomorphic evolution of the Creede caldera and its watershed tracks a two-phase topographic history, the first the Oligocene through Miocene, and the second for Pliocene to the recent. In Oligocene time, the San Juan volcanic field was a hydrologically immature, gently undulating, and outward sloping, constructional volcanic plateau straddling the ancient Continental Divide. West of the Creede caldera, a dendritic drainage discharged northeastward into ancestral Cebolla Creek (a tributary of the ancestral Gunnison River) through an early stage of the Clear Creek graben in the vicinity of Spring Creek Pass. Miocene basalt choked, but did not reconstruct, the drainage. By the end of Miocene time a mature topography of moderate relief developed, exposing some of the higher ores in the Creede district to weathering. In the late Miocene-early Pliocene time the San Juan Mountains were uplifted and titled eastward; the ancestral Rio Grande was revitalized and cut deeply into the older terrain, excavating much of the accessible sediment from the moat of the Creede caldera and exposing successively lowe levels in the Creede district to oxidation. Simultaneously, the southeast end of the Clear Creek graben was reactivated and breached the southwest wall of the Creede caldera. The rejuvenated Rio Grande captured the formerly northeast-directed headwaters of ancestral Cebolla Creek, shifting more than 1000 km2 from the Pacific-directed drainage to the Atlantic. The water budget for ancient Lake Creede was strictly limited by the early stages of the fist geomorphic cycle; the modern water budget is the product of the second cycle.","language":"English","publisher":"Geological Society of America","doi":"10.1130/0-8137-2346-9.105","issn":" 00721077","usgsCitation":"Barton, P., Steven, T., and Hayba, D.O., 2000, Hydrologic budget of the late Oligocene Lake Creede and the evolution of the upper Rio Grande drainage system: GSA Special Papers, v. 346, p. 105-126, https://doi.org/10.1130/0-8137-2346-9.105.","productDescription":"22 p.","startPage":"105","endPage":"126","numberOfPages":"22","costCenters":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"links":[{"id":281162,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":281158,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1130/0-8137-2346-9.105"}],"country":"United States","state":"Colorado","otherGeospatial":"Lake Creede","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -107.5,37.5 ], [ -107.5,38.0 ], [ -106.5,38.0 ], [ -106.5,37.5 ], [ -107.5,37.5 ] ] ] } } ] }","volume":"346","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd6167e4b0b290850fd81d","contributors":{"authors":[{"text":"Barton, Paul B.","contributorId":97128,"corporation":false,"usgs":true,"family":"Barton","given":"Paul B.","affiliations":[],"preferred":false,"id":488601,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Steven, Thomas A.","contributorId":57529,"corporation":false,"usgs":true,"family":"Steven","given":"Thomas A.","affiliations":[],"preferred":false,"id":488600,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hayba, Daniel O. 0000-0003-4092-1894 dhayba@usgs.gov","orcid":"https://orcid.org/0000-0003-4092-1894","contributorId":396,"corporation":false,"usgs":true,"family":"Hayba","given":"Daniel","email":"dhayba@usgs.gov","middleInitial":"O.","affiliations":[],"preferred":true,"id":488599,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70198716,"text":"70198716 - 2000 - Dissimilatory reduction of selenate and arsenate in nature","interactions":[],"lastModifiedDate":"2018-08-15T10:39:01","indexId":"70198716","displayToPublicDate":"2000-01-01T10:36:51","publicationYear":"2000","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"chapter":"9","title":"Dissimilatory reduction of selenate and arsenate in nature","docAbstract":"

This chapter discusses the biogeochemical reduction of selenate (Se(VI)) and arsenate (As(V)) when they enter anoxic environments and are used as electron acceptors for the oxidation of organic matter. These reductions are of a dissimilative nature and support the anaerobic growth of selected bacteria which conserve energy from this process. The chapter summarizes what is known about the bacteria's taxonomy, physiology, and biochemistry. Reduction to the solid, relatively unreactive Se(0) represents a mechanism for the removal of toxic Se(VI) and Se(IV) from natural waters. The environmental ramifications of these issues are also discussed in the chapter. The number of bacterial species known to respire selenate and arsenate continues to increase. The biological reduction of selenate and arsenate occurs for a number of reasons. In general, these are assimilation, regulation of reducing equivalents, detoxification, and dissimilation. Each is discussed in detail in the chapter. The realization that arsenate and selenate are indeed suitable electron acceptors and are readily available in both natural and contaminated environments suggests that even more unrelated species will be discovered. The initial biochemical studies also suggest that there may be different pathways for selenate and arsenate reduction, with specific terminal reductases and cytochromes.

","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Environmental microbe-metal interactions","language":"English","publisher":"ASM ","publisherLocation":"Washington, D.C.","doi":"10.1128/9781555818098.ch9","usgsCitation":"Oremland, R., and Stolz, J., 2000, Dissimilatory reduction of selenate and arsenate in nature, chap. 9 of Environmental microbe-metal interactions, p. 199-224, https://doi.org/10.1128/9781555818098.ch9.","productDescription":"26 p.","startPage":"199","endPage":"224","costCenters":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":356502,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationDate":"2014-04-09","publicationStatus":"PW","scienceBaseUri":"5b98d7d5e4b0702d0e847c81","contributors":{"editors":[{"text":"Lovley, Derek R.","contributorId":107852,"corporation":false,"usgs":true,"family":"Lovley","given":"Derek","middleInitial":"R.","affiliations":[],"preferred":false,"id":742688,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Oremland, Ron roremlan@usgs.gov","contributorId":145773,"corporation":false,"usgs":true,"family":"Oremland","given":"Ron","email":"roremlan@usgs.gov","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":742686,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stolz, J.","contributorId":189866,"corporation":false,"usgs":false,"family":"Stolz","given":"J.","affiliations":[],"preferred":false,"id":742687,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70199477,"text":"70199477 - 2000 - Distribution and origin of organic ligands in subsurface waters from sedimentary basins","interactions":[],"lastModifiedDate":"2018-09-19T10:37:01","indexId":"70199477","displayToPublicDate":"2000-01-01T10:34:38","publicationYear":"2000","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Distribution and origin of organic ligands in subsurface waters from sedimentary basins","docAbstract":"

No abstract available.

","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Ore genesis and exploration: The roles of organic matter","language":"English","usgsCitation":"Kharaka, Y.K., Lundegard, P., and Giordano, T., 2000, Distribution and origin of organic ligands in subsurface waters from sedimentary basins, chap. of Ore genesis and exploration: The roles of organic matter, p. 119-131.","productDescription":"13 p.","startPage":"119","endPage":"131","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":357472,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5c10fbf5e4b034bf6a8091b9","contributors":{"editors":[{"text":"Giordano, T.H.","contributorId":207996,"corporation":false,"usgs":false,"family":"Giordano","given":"T.H.","email":"","affiliations":[],"preferred":false,"id":745536,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Kettler, R.M.","contributorId":24102,"corporation":false,"usgs":true,"family":"Kettler","given":"R.M.","affiliations":[],"preferred":false,"id":745537,"contributorType":{"id":2,"text":"Editors"},"rank":2}],"authors":[{"text":"Kharaka, Yousif K. 0000-0001-9861-8260 ykharaka@usgs.gov","orcid":"https://orcid.org/0000-0001-9861-8260","contributorId":1928,"corporation":false,"usgs":true,"family":"Kharaka","given":"Yousif","email":"ykharaka@usgs.gov","middleInitial":"K.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":745533,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lundegard, P.D.","contributorId":71323,"corporation":false,"usgs":true,"family":"Lundegard","given":"P.D.","email":"","affiliations":[],"preferred":false,"id":745534,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Giordano, T.H.","contributorId":207996,"corporation":false,"usgs":false,"family":"Giordano","given":"T.H.","email":"","affiliations":[],"preferred":false,"id":745535,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70199476,"text":"70199476 - 2000 - Nanofiltration membranes used to remove selenium and other minor elements from wastewater","interactions":[],"lastModifiedDate":"2018-09-19T10:32:42","indexId":"70199476","displayToPublicDate":"2000-01-01T10:31:05","publicationYear":"2000","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Nanofiltration membranes used to remove selenium and other minor elements from wastewater","docAbstract":"

No abstract available.

","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Minor elements 2000","language":"English","publisher":"Society for Mining, Metallurgy, and Exploration","usgsCitation":"Kharaka, Y.K., Thordsen, J., Schroeder, R.A., and Setmire, J.G., 2000, Nanofiltration membranes used to remove selenium and other minor elements from wastewater, chap. of Minor elements 2000, p. 372-379.","productDescription":"8 p.","startPage":"372","endPage":"379","costCenters":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":357471,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5c10fbf5e4b034bf6a8091bb","contributors":{"editors":[{"text":"Young, C.","contributorId":67709,"corporation":false,"usgs":true,"family":"Young","given":"C.","email":"","affiliations":[],"preferred":false,"id":745532,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Kharaka, Yousif K. 0000-0001-9861-8260 ykharaka@usgs.gov","orcid":"https://orcid.org/0000-0001-9861-8260","contributorId":1928,"corporation":false,"usgs":true,"family":"Kharaka","given":"Yousif","email":"ykharaka@usgs.gov","middleInitial":"K.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":745528,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Thordsen, James J. jthordsn@usgs.gov","contributorId":3329,"corporation":false,"usgs":true,"family":"Thordsen","given":"James J.","email":"jthordsn@usgs.gov","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":745529,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Schroeder, Roy A. raschroe@usgs.gov","contributorId":1523,"corporation":false,"usgs":true,"family":"Schroeder","given":"Roy","email":"raschroe@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":true,"id":745530,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Setmire, J. G.","contributorId":16818,"corporation":false,"usgs":true,"family":"Setmire","given":"J.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":745531,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70198882,"text":"70198882 - 2000 - An overview of arsenic mass-poisoning in Bangladesh and West Bengal, India","interactions":[],"lastModifiedDate":"2018-08-22T10:31:33","indexId":"70198882","displayToPublicDate":"2000-01-01T10:29:43","publicationYear":"2000","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"An overview of arsenic mass-poisoning in Bangladesh and West Bengal, India","docAbstract":"

The largest mass poisoning in the world, perhaps in history, is happening in West Bengal, India, and Bangladesh. Many thousands of people suffer from arsenic skin disorders and are dying from cancer. About 19 million are estimated to be at risk. The discovery of the arsenic poisoning from tubewell drinking water was made in 1983, but it took about 10 years to be formally recognized as a large-scale problem. The source of the arsenic is natural and three hypotheses have been proposed for its mobilization: oxidation of arsenian pyrite, reductive iron dissolution with release of adsorbed arsenic, and competitive adsorption from phosphate. The processes causing arsenic mobilization in the Bengal Delta are still poorly understood and further research is needed to design long-term remediation strategies.

","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Minor elements 2000, processing and environmental aspects of As, Sb, Se, Te, and Bi ","language":"English","publisher":"Society for Mining, Metallurgy, and Exploration","isbn":"0873351991","usgsCitation":"Nordstrom, D.K., 2000, An overview of arsenic mass-poisoning in Bangladesh and West Bengal, India, chap. of Minor elements 2000, processing and environmental aspects of As, Sb, Se, Te, and Bi , p. 21-30.","productDescription":"10 p.","startPage":"21","endPage":"30","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"links":[{"id":356699,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"India; Bangladesh; West Bengal ","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5b98d7d5e4b0702d0e847c83","contributors":{"editors":[{"text":"Young, C.","contributorId":67709,"corporation":false,"usgs":true,"family":"Young","given":"C.","email":"","affiliations":[],"preferred":false,"id":743257,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"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":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true},{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true}],"preferred":false,"id":743256,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70198715,"text":"70198715 - 2000 - Using borehole wireline methods to delineate fracture flow paths in bedrock aquifers","interactions":[],"lastModifiedDate":"2018-08-15T10:30:42","indexId":"70198715","displayToPublicDate":"2000-01-01T10:28:54","publicationYear":"2000","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"chapter":"7","title":" Using borehole wireline methods to delineate fracture flow paths in bedrock aquifers","docAbstract":"

No abstract available. 

","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Remediation in rock masses","language":"English","publisher":"American Society of Civil Engineers Press","publisherLocation":"Reston, Virginia ","doi":"10.1061/9780784400159","usgsCitation":"Paillet, F., 2000, Using borehole wireline methods to delineate fracture flow paths in bedrock aquifers, chap. 7 of Remediation in rock masses, p. 83-100, https://doi.org/10.1061/9780784400159.","productDescription":"18 p.","startPage":"83","endPage":"100","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":356501,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationDate":"2013-05-06","publicationStatus":"PW","scienceBaseUri":"5b98d7d5e4b0702d0e847c85","contributors":{"editors":[{"text":"Inyang, Hilary","contributorId":207079,"corporation":false,"usgs":false,"family":"Inyang","given":"Hilary","email":"","affiliations":[],"preferred":false,"id":742684,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Bruell, Clifford J.","contributorId":189700,"corporation":false,"usgs":false,"family":"Bruell","given":"Clifford","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":742685,"contributorType":{"id":2,"text":"Editors"},"rank":2}],"authors":[{"text":"Paillet, F.L.","contributorId":189369,"corporation":false,"usgs":false,"family":"Paillet","given":"F.L.","email":"","affiliations":[],"preferred":false,"id":742683,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70199475,"text":"70199475 - 2000 - Three-dimensional finite-volume F-LLAM implementation","interactions":[],"lastModifiedDate":"2018-09-19T10:29:10","indexId":"70199475","displayToPublicDate":"2000-01-01T10:27:33","publicationYear":"2000","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Three-dimensional finite-volume F-LLAM implementation","docAbstract":"

No abstract available.

","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Computational methods in water resources","language":"English","publisher":"A.A. Balkema","publisherLocation":"Rotterdam","usgsCitation":"Heberton, C., Russell, T., Konikow, L.F., and Hornberger, M.I., 2000, Three-dimensional finite-volume F-LLAM implementation, chap. of Computational methods in water resources, p. 603-610.","productDescription":"8 p.","startPage":"603","endPage":"610","costCenters":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true},{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":357470,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5c10fbf5e4b034bf6a8091bd","contributors":{"authors":[{"text":"Heberton, C.I.","contributorId":77966,"corporation":false,"usgs":true,"family":"Heberton","given":"C.I.","email":"","affiliations":[],"preferred":false,"id":745524,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Russell, T.F.","contributorId":86811,"corporation":false,"usgs":true,"family":"Russell","given":"T.F.","email":"","affiliations":[],"preferred":false,"id":745525,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Konikow, Leonard F. 0000-0002-0940-3856 lkonikow@usgs.gov","orcid":"https://orcid.org/0000-0002-0940-3856","contributorId":158,"corporation":false,"usgs":true,"family":"Konikow","given":"Leonard","email":"lkonikow@usgs.gov","middleInitial":"F.","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":745526,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hornberger, Michelle I. 0000-0002-7787-3446 mhornber@usgs.gov","orcid":"https://orcid.org/0000-0002-7787-3446","contributorId":1037,"corporation":false,"usgs":true,"family":"Hornberger","given":"Michelle","email":"mhornber@usgs.gov","middleInitial":"I.","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true}],"preferred":true,"id":745527,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70198881,"text":"70198881 - 2000 - Thermodynamic properties of environmental arsenic species: Limitations and needs","interactions":[],"lastModifiedDate":"2018-08-22T10:26:36","indexId":"70198881","displayToPublicDate":"2000-01-01T10:23:30","publicationYear":"2000","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Thermodynamic properties of environmental arsenic species: Limitations and needs","docAbstract":"

No abstract available. 

","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Minor elements 2000: Processing and environmental aspects of As, Sb, Se, Te, and Bi","language":"English","publisher":"Society for Mining, Metallurgy, and Exploration ","isbn":"0873351991","usgsCitation":"Nordstrom, D.K., 2000, Thermodynamic properties of environmental arsenic species: Limitations and needs, chap. of Minor elements 2000: Processing and environmental aspects of As, Sb, Se, Te, and Bi, p. 325-331.","productDescription":"7 p.","startPage":"325","endPage":"331","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"links":[{"id":356698,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5b98d7d5e4b0702d0e847c87","contributors":{"editors":[{"text":"Young, C.","contributorId":67709,"corporation":false,"usgs":true,"family":"Young","given":"C.","email":"","affiliations":[],"preferred":false,"id":743255,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"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":743254,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70199474,"text":"70199474 - 2000 - CFC tracing of groundwater in fractured rock aided with 14C and 3H to identify water mixing","interactions":[],"lastModifiedDate":"2018-09-19T10:24:18","indexId":"70199474","displayToPublicDate":"2000-01-01T10:22:08","publicationYear":"2000","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"CFC tracing of groundwater in fractured rock aided with 14C and 3H to identify water mixing","docAbstract":"

No abstract available. 

","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Groundwater: Past achievements and future challenges ","language":"English","publisher":"A.A. Balkema","usgsCitation":"Talma, A., Weaver, J., Plummer, L., and Busenberg, E., 2000, CFC tracing of groundwater in fractured rock aided with 14C and 3H to identify water mixing, chap. of Groundwater: Past achievements and future challenges , p. 635-640.","productDescription":"6 p.","startPage":"635","endPage":"640","costCenters":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":357469,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5c10fbf5e4b034bf6a8091bf","contributors":{"authors":[{"text":"Talma, A.S.","contributorId":207995,"corporation":false,"usgs":false,"family":"Talma","given":"A.S.","email":"","affiliations":[],"preferred":false,"id":745520,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Weaver, John L.","contributorId":106225,"corporation":false,"usgs":true,"family":"Weaver","given":"John L.","affiliations":[],"preferred":false,"id":745521,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Plummer, L.N.","contributorId":206803,"corporation":false,"usgs":false,"family":"Plummer","given":"L.N.","email":"","affiliations":[],"preferred":false,"id":745522,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Busenberg, Eurybiades ebusenbe@usgs.gov","contributorId":2271,"corporation":false,"usgs":true,"family":"Busenberg","given":"Eurybiades","email":"ebusenbe@usgs.gov","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":745523,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70093919,"text":"70093919 - 2000 - Neogene geomorphic and climatic evolution of the central San Juan Mountains, Colorado: K/Ar age and stable isotope data on supergene alunite and jarosite from the Creede mining district","interactions":[],"lastModifiedDate":"2019-11-30T15:48:43","indexId":"70093919","displayToPublicDate":"2000-01-01T10:20:00","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1727,"text":"GSA Special Papers","active":true,"publicationSubtype":{"id":10}},"title":"Neogene geomorphic and climatic evolution of the central San Juan Mountains, Colorado: K/Ar age and stable isotope data on supergene alunite and jarosite from the Creede mining district","docAbstract":"K/Ar age determinations or supergene alunite and jarosite, formed during Neogene weathering of the epithermal silver and base-metal ores of the Creede mining district, have been combined with geologic evidence to estimate the timing of regional uplift of the southern Rocky Mountains and related canyon cutting. In addition, oxygen and hydrogen isotopic studies suggest climate changes in the central San Juan Mountains during the past 5 m.y. Alunite [ideally (K,Na)Al3(SO4)2(OH)6] and jarosite [ideally KFe3(SO4)2(OH)6] can be dated by K/Ar or 40Ar/39Ar techniques and both contain OH and SO4 sites that enable four stable isotope analyses (δD, δ18OOH, and δ34S) to be made. This supergene alunite and jarosite formed by weathering of sulfide-rich ore bodies may record the evolution of the chemical and hydrologic processes affecting ancient oxidized acid ground water, as well as details of climate history and geomorphic evolution. Fine-grained (1-10 μm) supergene alunite and jarosite occur in minor fractures in the upper, oxidized parts of the 25 Ma sulfide-bearing veins of the Creede mining district, and jarosite also occurs in adjacent oxidized Ag-bearing clastic sediments. K/Ar ages for alunite range from 4.8 to 3.1 Ma, and for jarosite range from 2.6 to 0.9 Ma. The δD values for alunite and jarosite show opposite correlations with elevation, and values for jarosite correlate with age. Calculated δDH2O values of alunite fluids approach but are larger than those of present-day meteoric water. Calculated δDH2O values for jarosite fluids are more variable; the values of the youngest jarosites are lowest and are similar to those of present-day meteoric water in the district. The narrow δD-δ18OSO4 values of alunites reflects oxidation of sulfide below the water table. The greater range in these values for jarosites reflects oxidation of sulfide under vadose conditions. The ages of alunite mark the position of the paleo-water table at the end of a period of moderate erosion from ca. 25 to 5 Ma that exposed the tops of the ore bodies to oxidation. The younger jarosite formed in the vadose zone during or following subsequent canyon cutting related to regional uplift of the southern Rocky Mountains, The δD values suggest that climates in the area were similar to those of the present day prior to regional uplift but went through a warm period before returning to present conditions during or after regional uplift. The results of this study indicate that the combined stable and radiogenic isotope analysis of supergene alunite and jarosite has broad application in understanding climate and geomorphic evolution of selected areas.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"GSA Special Papers","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Geological Society of America","doi":"10.1130/0-8137-2346-9.95","issn":"00721077","usgsCitation":"Rye, R.O., Bethke, P., Lanphere, M.A., and Steven, T., 2000, Neogene geomorphic and climatic evolution of the central San Juan Mountains, Colorado: K/Ar age and stable isotope data on supergene alunite and jarosite from the Creede mining district: GSA Special Papers, v. 346, p. 95-103, https://doi.org/10.1130/0-8137-2346-9.95.","productDescription":"9 p.","startPage":"95","endPage":"103","numberOfPages":"9","costCenters":[{"id":218,"text":"Denver Federal Center","active":false,"usgs":true}],"links":[{"id":282385,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":282383,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1130/0-8137-2346-9.95"}],"country":"United States","state":"Colorado","otherGeospatial":"San Juan Mountains","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -107.4401,37.4651 ], [ -107.4401,37.9552 ], [ -106.5941,37.9552 ], [ -106.5941,37.4651 ], [ -107.4401,37.4651 ] ] ] } } ] }","volume":"346","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd68cee4b0b290851024bc","contributors":{"authors":[{"text":"Rye, Robert O. rrye@usgs.gov","contributorId":1486,"corporation":false,"usgs":true,"family":"Rye","given":"Robert","email":"rrye@usgs.gov","middleInitial":"O.","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":490289,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bethke, Philip M.","contributorId":52829,"corporation":false,"usgs":true,"family":"Bethke","given":"Philip M.","affiliations":[],"preferred":false,"id":490291,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lanphere, Marvin A. alder@usgs.gov","contributorId":2696,"corporation":false,"usgs":true,"family":"Lanphere","given":"Marvin","email":"alder@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":true,"id":490290,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Steven, Thomas A.","contributorId":57529,"corporation":false,"usgs":true,"family":"Steven","given":"Thomas A.","affiliations":[],"preferred":false,"id":490292,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70073333,"text":"70073333 - 2000 - Evolution of the Creede Caldera and its relation to mineralization in the Creede mining district, Colorado","interactions":[],"lastModifiedDate":"2014-01-16T10:37:02","indexId":"70073333","displayToPublicDate":"2000-01-01T10:13:00","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1727,"text":"GSA Special Papers","active":true,"publicationSubtype":{"id":10}},"title":"Evolution of the Creede Caldera and its relation to mineralization in the Creede mining district, Colorado","docAbstract":"At 25 Ma a major epithermal silver and base metal deposit formed in rhyolitic welded tuff near Creede, Colorado. Nearly 24000 metric tons of silver, appreciable lead, and small amounts of zinc, copper, and gold, have been produced from large, crustified veins under Bachelor and Bulldog Mountains north and northwest of Creede. Prior geologic, hydrologic, and stable-isotope studies showed that ore deposition was associated with the mixing and boiling of waters from diverse sources and suggester that a critical part of the ore-forming fluid may have originated within the ancient lake and sediments of the lacustrine Creede Formation that filled the Creede caldera. Two drill holes that sampled the heretofore hidden lower half of the Creede Formation are the focus of this book. The Creede caldera formed at 26.9 Ma within a high constructional plateau of silicic ashflows that covered and were sporadically interlayed with, intermediate lavas and lahars from large stratovolcanoes. The Creede caldera lake had an inflow evaporation balance that did not permit rapid filling to create a brim-full deep lake. Thus salts were evaporatively concentrated; but, with the exception of possible gypsum, no evaporite minerals preserved. Cool springs deposited travertine as mounds and contributed to limestone interlaminations within the sediment. The lake bottom was anoxic, and bacterial reduction of sulfate led to extreme sulfur isotopic fractionation in diagenetic pyrite. The caldera gradually resurged, converting the initial equant lake into an arcuate moat. Resurgent doming, alluvial fans, lacustrine sediments, ashfalls, and lava domes displaced water, lifted the lake so that it overlapped what later became the southern edge of the mineralized are, and eventually filled the basin. At 25.1 Ma an unseen pluton intruded beneath the northen part of the Creede district and created a convecting olume that drew in brine from the Creede caldera fill, meteotic water from highlands to the north, and possibly a fluid carrying radiogenic lead. These waters mixed and boiled as they approached the surface and moved southward, deposited a zoned epithermal deposit a few hundred meters below the paleosurface, and finally discharged into the top of the Creede Formation. The sulfide in the ores was the igneous derivation, but the sulfate was a mixture of biogenic sulfur from the Creede Formation, oxidized igneous sulfide, and thermochemically reduced and partially oxygen exchanged sulfate. The studies of the Creede caldera provide key observational and conceptual elements for the generalized model of the Creede ore deposit. The relation of the Creed ore deposit to a brine reservoir has broad significance because other brine accumulations (as in the Great Basin, the Green River Basin, or the playas of the Altiplano offer similar setting and exploration opportunities.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"GSA Special Papers","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Geological Society of America","doi":"10.1130/0-8137-2346-9.301","usgsCitation":"Barton, P., Rye, R.O., and Bethke, P., 2000, Evolution of the Creede Caldera and its relation to mineralization in the Creede mining district, Colorado: GSA Special Papers, v. 346, p. 301-326, https://doi.org/10.1130/0-8137-2346-9.301.","productDescription":"26 p.","startPage":"301","endPage":"326","numberOfPages":"26","costCenters":[{"id":218,"text":"Denver Federal Center","active":false,"usgs":true}],"links":[{"id":281156,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":281155,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1130/0-8137-2346-9.301"}],"country":"United States","state":"Colorado","city":"Creede","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -107.0,37.75 ], [ -107.0,37.916667 ], [ -106.833333,37.916667 ], [ -106.833333,37.75 ], [ -107.0,37.75 ] ] ] } } ] }","volume":"346","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd58aae4b0b290850f83d9","contributors":{"authors":[{"text":"Barton, Paul B.","contributorId":97128,"corporation":false,"usgs":true,"family":"Barton","given":"Paul B.","affiliations":[],"preferred":false,"id":488593,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rye, Robert O. rrye@usgs.gov","contributorId":1486,"corporation":false,"usgs":true,"family":"Rye","given":"Robert","email":"rrye@usgs.gov","middleInitial":"O.","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":488591,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bethke, Philip M.","contributorId":52829,"corporation":false,"usgs":true,"family":"Bethke","given":"Philip M.","affiliations":[],"preferred":false,"id":488592,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ]}