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.
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2000 - A discussion of geology, soils, wines, and history of the Napa Valley region","interactions":[],"lastModifiedDate":"2014-01-24T10:30:00","indexId":"70073919","displayToPublicDate":"2000-01-01T10:23:00","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":"A discussion of geology, soils, wines, and history of the Napa Valley region","docAbstract":"No abstract available.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"GSA Field Guides","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Geological Society of America","doi":"10.1130/0-8137-0002-7.415","usgsCitation":"Howell, D.G., and Swinchatt, J.P., 2000, A discussion of geology, soils, wines, and history of the Napa Valley region: GSA Field Guides, v. 2, p. 415-422, https://doi.org/10.1130/0-8137-0002-7.415.","productDescription":"8 p.","startPage":"415","endPage":"422","numberOfPages":"8","costCenters":[],"links":[{"id":281471,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":281470,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1130/0-8137-0002-7.415"}],"country":"United States","state":"California","otherGeospatial":"Napa Valley","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -122.619786,38.239535 ], [ -122.619786,38.620105 ], [ -122.221877,38.620105 ], [ -122.221877,38.239535 ], [ -122.619786,38.239535 ] ] ] } } ] }","volume":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd49c4e4b0b290850ef610","contributors":{"authors":[{"text":"Howell, David G.","contributorId":59874,"corporation":false,"usgs":true,"family":"Howell","given":"David","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":489213,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Swinchatt, Jonathan P.","contributorId":92163,"corporation":false,"usgs":true,"family":"Swinchatt","given":"Jonathan","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":489214,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70199474,"text":"70199474 - 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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":70073643,"text":"70073643 - 2000 - Landslides and tsunamis","interactions":[],"lastModifiedDate":"2018-10-01T19:42:12","indexId":"70073643","displayToPublicDate":"2000-01-01T10:17:29","publicationYear":"2000","noYear":false,"publicationType":{"id":4,"text":"Book"},"title":"Landslides and tsunamis","docAbstract":"The study of tsunamis has been shifting away from theoretical modeling of tsunami source, wave propagation and runup toward multidisciplinary investigations, with an emphasis on field studies. This collection of papers highlights the many approaches being utilized to study landslides and tsunamis.","largerWorkTitle":"Pure and Applied Geophysics","language":"English","publisher":"Birkhauser Verlag","publisherLocation":"Boston","usgsCitation":"Waythomas, C.F., and Dawson, A.G., 2000, Landslides and tsunamis, v. 157, no. 6-8, 443 p.","productDescription":"443 p.","startPage":"871","endPage":"1313","numberOfPages":"443","costCenters":[],"links":[{"id":281279,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"157","issue":"6-8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd640de4b0b290850ff376","contributors":{"editors":[{"text":"Keating, Barbara H.","contributorId":42520,"corporation":false,"usgs":true,"family":"Keating","given":"Barbara","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":509727,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Waythomas, Christopher F. 0000-0002-3898-272X cwaythomas@usgs.gov","orcid":"https://orcid.org/0000-0002-3898-272X","contributorId":640,"corporation":false,"usgs":true,"family":"Waythomas","given":"Christopher","email":"cwaythomas@usgs.gov","middleInitial":"F.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":509726,"contributorType":{"id":2,"text":"Editors"},"rank":2},{"text":"Dawson, Alastair G.","contributorId":74297,"corporation":false,"usgs":true,"family":"Dawson","given":"Alastair","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":509728,"contributorType":{"id":2,"text":"Editors"},"rank":3}],"authors":[{"text":"Waythomas, Christopher F. 0000-0002-3898-272X cwaythomas@usgs.gov","orcid":"https://orcid.org/0000-0002-3898-272X","contributorId":640,"corporation":false,"usgs":true,"family":"Waythomas","given":"Christopher","email":"cwaythomas@usgs.gov","middleInitial":"F.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":488925,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dawson, Alastair G.","contributorId":74297,"corporation":false,"usgs":true,"family":"Dawson","given":"Alastair","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":488927,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"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}]}} ,{"id":70209576,"text":"70209576 - 2000 - SHRIMP U-Pb zircon ages for Big Creek gneiss, Wyoming and Boulder Creek batholith, Colorado: Implications for timing of Paleoproterozoic accretion of the northern Colorado province","interactions":[],"lastModifiedDate":"2020-04-14T15:14:09.938037","indexId":"70209576","displayToPublicDate":"2000-01-01T10:08:15","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3310,"text":"Rocky Mountain Geology","active":true,"publicationSubtype":{"id":10}},"title":"SHRIMP U-Pb zircon ages for Big Creek gneiss, Wyoming and Boulder Creek batholith, Colorado: Implications for timing of Paleoproterozoic accretion of the northern Colorado province","docAbstract":"Sensitive, high-resolution, ion microprobe (SHRIMP) U-Pb zircon ages from a sample of the high-grade, hornblende-feldspathic Big Creek gneiss of the southeastern Sierra Madre, along with samples of a quartz monzonitic phase of the Boulder Creek batholith, help define timing of three major Paleoproterozoic thermo-tectonic events within the northern Colorado province at approximately 1810, 1710, and 1610 Ma. Previous ages determined for these key rock units were problematic; they hindered regional tectonic interpretations of the Paleoproterozoic crustal accretion history of the Colorado province that extends from the Cheyenne belt of southern Wyoming to north-central New Mexico. The Colorado province has been popularly modelled as a series of accreted oceanic volcano-plutonic arc systems and associated sediments, although alternative interpretations suggest that the series represents continental-margin arc rocks.
The Big Creek gneiss has been interpreted as a high-grade basement equivalent of the oldest arc volcanic rocks exposed within the Green Mountain arc terrane, but it also has been suspected of being either an older block of pre-arc basement or perhaps an allochthonous piece of crust from slightly older orogens to the east and north. Previous ID-TIMS work on mg-size zircon fractions yielded U-Pb concordia upper-intercept ages of 1618 ± 22 and 1684 ± 5 Ma as well as negative lower-intercept ages, indicating complex U-Pb isotopic systematics involving at least two ages of zircon growth overprinted by at least one episode of Pb-loss. Zircons from this gneiss were analyzed using the SHRIMP, and a total of 32 spot analyses on both centers and rims produced a range of different 207Pb/206Pb ages between ∼1840 and ∼1560 Ma. The weighted mean of the oldest 207Pb/206Pb ages is 1812 ± 12 Ma and is interpreted to estimate the age of the protolith that appears to be slightly older than lower-grade metabasalts and associated plutons at ∼1790–1775 Ma. This protolith age of 1812 Ma further implies that significantly older crust (> 1820 Ma; e.g., Penokean orogeny) is not found in the Green Mountain magmatic arc. The youngest 207Pb/206Pb ages of ∼1610 Ma are interpreted to represent a time of new zircon growth during highly localized high-grade metamorphism—an event that also produced local granitic magmatism at ∼1625 Ma.
The Boulder Creek batholith had been dated previously using the ID-TIMS, U-Pb zircon technique that yielded ages at ∼1670 and ∼1714 Ma, a 45-m.y. discrepancy that left the true age of the batholith in doubt. Zircons from two samples, previously dated using the ID-TIMS method, were analyzed using SHRIMP, and yielded concordia upper-intercept ages of 1713 ± 10 and 1721 ± 15 Ma. These results, combined with two earlier U-Pb zircon determinations, help to establish the age of the Boulder Creek batholith at 1714.4 ± 4.6 Ma (weighted mean), an age more compatible with those for the other large, tonalitic to quartz monzonitic, syntectonic plutons within the northern Colorado province. The new Boulder Creek age helps to establish a discrete period of plutonism (∼1735–1705 Ma) that is syn- to post-tectonic with respect to major regional structures of deformation and metamorphism in the northern Colorado province. Assuming the multiple oceanic arc accretion model, the new age for the mid-crustal emplacement of this batholith into a deforming composite back-arc basin may date the closure of that basin during crustal shortening.
","language":"English","publisher":"University of Wyoming","doi":"10.2113/35.1.31","usgsCitation":"Premo, W.R., and Fanning, C., 2000, SHRIMP U-Pb zircon ages for Big Creek gneiss, Wyoming and Boulder Creek batholith, Colorado: Implications for timing of Paleoproterozoic accretion of the northern Colorado province: Rocky Mountain Geology, v. 35, no. 1, p. 31-50, https://doi.org/10.2113/35.1.31.","productDescription":"20 p.","startPage":"31","endPage":"50","costCenters":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"links":[{"id":373959,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Colorado, Wyoming","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -106.4520263671875,\n 40.204050425113294\n ],\n [\n -104.4140625,\n 40.204050425113294\n ],\n [\n -104.4140625,\n 42.15933157601718\n ],\n [\n -106.4520263671875,\n 42.15933157601718\n ],\n [\n -106.4520263671875,\n 40.204050425113294\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"35","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Premo, Wayne R. 0000-0001-9904-4801 wpremo@usgs.gov","orcid":"https://orcid.org/0000-0001-9904-4801","contributorId":1697,"corporation":false,"usgs":true,"family":"Premo","given":"Wayne","email":"wpremo@usgs.gov","middleInitial":"R.","affiliations":[],"preferred":true,"id":786999,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fanning, C. Mark","contributorId":46814,"corporation":false,"usgs":true,"family":"Fanning","given":"C. Mark","affiliations":[],"preferred":false,"id":787000,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70211186,"text":"70211186 - 2000 - Hydrologic and geologic characteristics of the Yucca Mountain site relevant to the performance of a potential repository; Day 2, Beatty to Yucca Mountain; Stop 7B, Secondary minerals and paleohydrologic implications","interactions":[],"lastModifiedDate":"2021-04-09T13:11:50.732716","indexId":"70211186","displayToPublicDate":"2000-01-01T10:05:27","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 2, Beatty to Yucca Mountain; Stop 7B, Secondary minerals and paleohydrologic implications","docAbstract":"No abstract available.
","language":"English","publisher":"Geological Society of America","doi":"10.1130/0-8137-0002-7.383","usgsCitation":"Neymark, L., Paces, J.B., Peterman, Z.E., Marshall, B.M., and Whelan, J., 2000, Hydrologic and geologic characteristics of the Yucca Mountain site relevant to the performance of a potential repository; Day 2, Beatty to Yucca Mountain; Stop 7B, Secondary minerals and paleohydrologic implications: GSA Field Guides, v. 2, p. 401-402, https://doi.org/10.1130/0-8137-0002-7.383.","productDescription":"2 p.","startPage":"401","endPage":"402","costCenters":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true},{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"links":[{"id":376428,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Nevada","otherGeospatial":"Yucca Mountain","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -116.48254394531249,\n 36.91352904330221\n ],\n [\n -116.43602371215822,\n 36.91352904330221\n ],\n [\n -116.43602371215822,\n 36.95757376878687\n ],\n [\n -116.48254394531249,\n 36.95757376878687\n ],\n [\n -116.48254394531249,\n 36.91352904330221\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"2","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Neymark, Leonid A. 0000-0003-4190-0278 lneymark@usgs.gov","orcid":"https://orcid.org/0000-0003-4190-0278","contributorId":140338,"corporation":false,"usgs":true,"family":"Neymark","given":"Leonid A.","email":"lneymark@usgs.gov","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true},{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":793012,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Paces, James B. 0000-0002-9809-8493 jbpaces@usgs.gov","orcid":"https://orcid.org/0000-0002-9809-8493","contributorId":2514,"corporation":false,"usgs":true,"family":"Paces","given":"James","email":"jbpaces@usgs.gov","middleInitial":"B.","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":793013,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Peterman, Zell E. 0000-0002-5694-8082 peterman@usgs.gov","orcid":"https://orcid.org/0000-0002-5694-8082","contributorId":167699,"corporation":false,"usgs":true,"family":"Peterman","given":"Zell","email":"peterman@usgs.gov","middleInitial":"E.","affiliations":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":793014,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Marshall, B. M.","contributorId":229367,"corporation":false,"usgs":false,"family":"Marshall","given":"B.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":793015,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Whelan, Joseph F.","contributorId":39425,"corporation":false,"usgs":true,"family":"Whelan","given":"Joseph F.","affiliations":[],"preferred":false,"id":793016,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70250493,"text":"70250493 - 2000 - Direct measurement of turbulence properties by a BB-ADCP in bottom boundary layer","interactions":[],"lastModifiedDate":"2023-12-13T16:03:06.99607","indexId":"70250493","displayToPublicDate":"2000-01-01T09:53:30","publicationYear":"2000","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Direct measurement of turbulence properties by a BB-ADCP in bottom boundary layer","docAbstract":"No abstract available.
","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Interactions between estuaries, coastal seas and shelf seas","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":"Terra Scientific Publishing Company","usgsCitation":"Cheng, R.T., Ling, C.#., and Gartner, J.W., 2000, Direct measurement of turbulence properties by a BB-ADCP in bottom boundary layer, chap. of Interactions between estuaries, coastal seas and shelf seas, p. 37-55.","productDescription":"19 p.","startPage":"37","endPage":"55","costCenters":[],"links":[{"id":423513,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"South San Francisco Bay","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -122.33894826473515,\n 37.654473035096814\n ],\n [\n -122.3360379269847,\n 37.547637741436915\n ],\n [\n -122.11097180763957,\n 37.54533025340122\n ],\n [\n -122.11097180763957,\n 37.65754512799322\n ],\n [\n -122.33894826473515,\n 37.654473035096814\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Cheng, R. T.","contributorId":23138,"corporation":false,"usgs":false,"family":"Cheng","given":"R.","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":890145,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ling, C. #NAME?","contributorId":14133,"corporation":false,"usgs":true,"family":"Ling","given":"C.","email":"","middleInitial":"#NAME?","affiliations":[],"preferred":false,"id":890146,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gartner, J. W.","contributorId":81903,"corporation":false,"usgs":false,"family":"Gartner","given":"J.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":890147,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70006783,"text":"70006783 - 2000 - Relationship of Eastern hemlock (Tsuga canadensis) to the ecology of small streams in Delaware Water Gap National Recreation Area","interactions":[],"lastModifiedDate":"2014-06-02T09:24:56","indexId":"70006783","displayToPublicDate":"2000-01-01T09:20:00","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":"NE-267","title":"Relationship of Eastern hemlock (Tsuga canadensis) to the ecology of small streams in Delaware Water Gap National Recreation Area","docAbstract":"Hemlock ravines in Delaware Water Gap National\nRecreation Area (DEWA) are highly valued because of their\ndistinctive aesthetic, recreational and ecological qualities.\nWe conducted a comparative study designed to determine\nthe potential long-term consequences to aquatic\ncommunities of the suspected transition from\nhemlock-dominated forests to mixed hardwood forests as a\nresult of hemlock woolly adelgid (HWA; Adelges tsugae)\ninduced mortality. A landscape analysis of DEWA using\nGeographic Information Systems (GIs) was used to select\n14 hemlock and hardwood site-pairs that were similar in\ntopography (i.e., slope, terrain shape, aspect, light levels)\nand stream size (first or second order) but differed in forest\ncomposition. This paired watershed approach provided a\npowerful means to discern the influence of hemlock forests\non stream communities. 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","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Encyclopedia of microbiology","language":"English","publisher":"Academic Press","publisherLocation":"New York","usgsCitation":"Oremland, R.S., 2000, Selenium, chap. of Encyclopedia of microbiology, p. 238-247.","productDescription":"10 p.","startPage":"238","endPage":"247","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":356571,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"edition":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5b98d7d6e4b0702d0e847c8b","contributors":{"editors":[{"text":"Ledenberg, J.","contributorId":207152,"corporation":false,"usgs":false,"family":"Ledenberg","given":"J.","email":"","affiliations":[],"preferred":false,"id":742916,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Oremland, Ronald S. 0000-0001-7382-0147 roremlan@usgs.gov","orcid":"https://orcid.org/0000-0001-7382-0147","contributorId":931,"corporation":false,"usgs":true,"family":"Oremland","given":"Ronald","email":"roremlan@usgs.gov","middleInitial":"S.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true},{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true}],"preferred":true,"id":742915,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70200559,"text":"70200559 - 2000 - Volcanism and ice interactions on Earth and Mars","interactions":[],"lastModifiedDate":"2018-10-24T08:48:35","indexId":"70200559","displayToPublicDate":"2000-01-01T08:48:00","publicationYear":"2000","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Volcanism and ice interactions on Earth and Mars","docAbstract":"Volcano/ice interactions produce meltwater. Meltwater can enter the groundwater cycle and under the influence of hydrothermal systems, it can be later discharged to form channels and valleys or cycled upward to melt permafrost. Water or ice-saturated ground can erupt into phreatic craters when covered by lava. Violent mixing of meltwater and volcanic material and rapid release can generate lahars or jokulhlaups, that have the ability to freight coarse material, great distances downslope from the vent. Eruption into meltwater generate unique appearing edifices, that are definitive indicators of volcano/ice interaction. These features are hyaloclastic ridges or mounds and if capped by lava, tuyas. On Earth, volcano/ice interactions are limited to alpine regions and ice-capped polar and temperate regions. On Mars, where precipitation may be an ancient phenomenon, these interactions may be limited to areas of ground ice accumulation or the northern lowlands where water may have ponded fairly late in martian history. The recognition of features caused by volcano/ice interactions could provide strong constraints for the history of volatiles on Mars.
","largerWorkType":{"id":5,"text":"Book chapter"},"largerWorkTitle":"Environmental effects on volcanic eruptions: From deep oceans to deep space","largerWorkSubtype":{"id":24,"text":"Book Chapter"},"language":"English","usgsCitation":"Chapman, M.G., Allen, C.C., Gudmundsson, M.T., Gulick, V.C., Jakobsson, S.P., Lucchitta, B.K., Skilling, I.P., and Waitt, R.B., 2000, Volcanism and ice interactions on Earth and Mars, chap. of Environmental effects on volcanic eruptions: From deep oceans to deep space, 22 p.","productDescription":"22 p.","costCenters":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"links":[{"id":358717,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":358716,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://ntrs.nasa.gov/search.jsp?R=20000096520"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5c10fbf5e4b034bf6a8091c1","contributors":{"authors":[{"text":"Chapman, Mary G.","contributorId":69055,"corporation":false,"usgs":true,"family":"Chapman","given":"Mary","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":749587,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Allen, Carlton C.","contributorId":75451,"corporation":false,"usgs":true,"family":"Allen","given":"Carlton","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":749588,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gudmundsson, Magnus T.","contributorId":93820,"corporation":false,"usgs":true,"family":"Gudmundsson","given":"Magnus","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":749589,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Gulick, Virginia C.","contributorId":52443,"corporation":false,"usgs":true,"family":"Gulick","given":"Virginia","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":749590,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Jakobsson, Sveinn P.","contributorId":40121,"corporation":false,"usgs":true,"family":"Jakobsson","given":"Sveinn","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":749591,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Lucchitta, Baerbel K. blucchitta@usgs.gov","contributorId":3649,"corporation":false,"usgs":true,"family":"Lucchitta","given":"Baerbel","email":"blucchitta@usgs.gov","middleInitial":"K.","affiliations":[],"preferred":true,"id":749592,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Skilling, Ian P.","contributorId":68648,"corporation":false,"usgs":true,"family":"Skilling","given":"Ian","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":749593,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Waitt, Richard B. 0000-0002-6392-5604 waitt@usgs.gov","orcid":"https://orcid.org/0000-0002-6392-5604","contributorId":2343,"corporation":false,"usgs":true,"family":"Waitt","given":"Richard","email":"waitt@usgs.gov","middleInitial":"B.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":749594,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}} ,{"id":70093562,"text":"70093562 - 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