{"pageNumber":"2963","pageRowStart":"74050","pageSize":"25","recordCount":184617,"records":[{"id":31442,"text":"ofr028 - 2002 - Results of the U.S. Geological Survey's analytical evaluation program for standard reference samples distributed in September 2001","interactions":[],"lastModifiedDate":"2012-02-02T00:08:59","indexId":"ofr028","displayToPublicDate":"2002-02-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2002-8","title":"Results of the U.S. Geological Survey's analytical evaluation program for standard reference samples distributed in September 2001","docAbstract":"This report presents the results of the U.S. Geological Survey's analytical evaluation program for\r\nsix standard reference samples -- T-167 (trace constituents), M-160 (major constituents), N-71\r\n(nutrient constituents), N-72 (nutrient constituents), P-37 (low ionic-strength constituents), and\r\nHg-33 (mercury) -- that were distributed in September 2001 to laboratories enrolled in the U.S.\r\nGeological Survey sponsored interlaboratory testing program. Analytical data received from 98\r\nlaboratories were evaluated with respect to overall laboratory performance and relative laboratory\r\nperformance for each analyte in the six reference samples. Results of these evaluations are\r\npresented in tabular form. Also presented are tables and graphs summarizing the analytical data\r\nprovided by each laboratory for each analyte in the six standard reference samples. The most\r\nprobable value for each analyte was determined using nonparametric statistics.","language":"ENGLISH","doi":"10.3133/ofr028","usgsCitation":"Woodworth, M.T., and Connor, B.F., 2002, Results of the U.S. Geological Survey's analytical evaluation program for standard reference samples distributed in September 2001: U.S. Geological Survey Open-File Report 2002-8, iv, 113 p. : ill. ; 28 cm., https://doi.org/10.3133/ofr028.","productDescription":"iv, 113 p. : ill. ; 28 cm.","costCenters":[{"id":576,"text":"Standard Reference Sample Project- Branch of Quality Systems","active":false,"usgs":true}],"links":[{"id":2589,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://bqs.usgs.gov/srs/Report_Fall01.pdf ","linkFileType":{"id":1,"text":"pdf"}},{"id":160149,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/2002/0008/report-thumb.jpg"},{"id":59783,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2002/0008/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a18e4b07f02db605559","contributors":{"authors":[{"text":"Woodworth, Mark T. woodwort@usgs.gov","contributorId":3452,"corporation":false,"usgs":true,"family":"Woodworth","given":"Mark","email":"woodwort@usgs.gov","middleInitial":"T.","affiliations":[],"preferred":true,"id":206006,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Connor, Brooke F. bfconnor@usgs.gov","contributorId":3172,"corporation":false,"usgs":true,"family":"Connor","given":"Brooke","email":"bfconnor@usgs.gov","middleInitial":"F.","affiliations":[],"preferred":true,"id":206005,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":31443,"text":"ofr0210 - 2002 - Case study of the environmental signature of a recently abandoned, carbonate-hosted replacement deposit: The Clayton Mine, Idaho","interactions":[],"lastModifiedDate":"2021-12-16T23:05:36.010109","indexId":"ofr0210","displayToPublicDate":"2002-02-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2002-10","title":"Case study of the environmental signature of a recently abandoned, carbonate-hosted replacement deposit: The Clayton Mine, Idaho","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr0210","usgsCitation":"Hammarstrom, J.M., Eppinger, R., Gosen, B., Briggs, P., and Meier, A.L., 2002, Case study of the environmental signature of a recently abandoned, carbonate-hosted replacement deposit: The Clayton Mine, Idaho: U.S. Geological Survey Open-File Report 2002-10, 44 p., https://doi.org/10.3133/ofr0210.","productDescription":"44 p.","costCenters":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"links":[{"id":160155,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":393035,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_46506.htm"},{"id":2590,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/openfile/of02-010/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Idaho","otherGeospatial":"Clayton Mine","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -114.45831298828125,\n              44.24913396886894\n            ],\n            [\n              -114.36904907226562,\n              44.24913396886894\n            ],\n            [\n              -114.36904907226562,\n              44.30910939501072\n            ],\n            [\n              -114.45831298828125,\n              44.30910939501072\n            ],\n            [\n              -114.45831298828125,\n              44.24913396886894\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49f3e4b07f02db5efbbb","contributors":{"authors":[{"text":"Hammarstrom, J. M.","contributorId":34513,"corporation":false,"usgs":true,"family":"Hammarstrom","given":"J.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":206007,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Eppinger, R. G.","contributorId":100837,"corporation":false,"usgs":true,"family":"Eppinger","given":"R. G.","affiliations":[],"preferred":false,"id":206010,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gosen, B.S.","contributorId":51800,"corporation":false,"usgs":true,"family":"Gosen","given":"B.S.","email":"","affiliations":[],"preferred":false,"id":206008,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Briggs, Paul H.","contributorId":107691,"corporation":false,"usgs":true,"family":"Briggs","given":"Paul H.","affiliations":[],"preferred":false,"id":206011,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Meier, A. L.","contributorId":81480,"corporation":false,"usgs":true,"family":"Meier","given":"A.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":206009,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":30978,"text":"wri014239 - 2002 - Ground-water discharge determined from measurements of evapotranspiration, other available hydrologic components, and shallow water-level changes, Oasis Valley, Nye County, Nevada","interactions":[],"lastModifiedDate":"2025-12-03T14:02:59.629214","indexId":"wri014239","displayToPublicDate":"2002-02-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2001-4239","title":"Ground-water discharge determined from measurements of evapotranspiration, other available hydrologic components, and shallow water-level changes, Oasis Valley, Nye County, Nevada","docAbstract":"<p>Oasis Valley is an area of natural ground-water discharge within the Death Valley regional ground-water flow system of southern Nevada and adjacent California. Ground water discharging at Oasis Valley is replenished from inflow derived from an extensive recharge area that includes the northwestern part of the Nevada Test Site (NTS). Because nuclear testing has introduced radionuclides into the subsurface of the NTS, the U.S. Department of Energy currently is investigating the potential transport of these radionuclides by ground water flow. To better evaluate any potential risk associated with these test-generated contaminants, a number of studies were undertaken to accurately quantify discharge from areas downgradient in the regional ground-water flow system from the NTS. This report refines the estimate of ground-water discharge from Oasis Valley.</p><p>Ground-water discharge from Oasis Valley was estimated by quantifying evapotranspiration (ET), estimating subsurface outflow, and compiling ground-water withdrawal data. ET was quantified by identifying areas of ongoing ground-water ET, delineating areas of ET defined on the basis of similarities in vegetation and soil-moisture conditions, and computing ET rates for each of the delineated areas. A classification technique using spectral-reflectance characteristics determined from satellite imagery acquired in 1992 identified eight unique areas of ground-water ET. These areas encompass about 3,426 acres of sparsely to densely vegetated grassland, shrubland, wetland, and open water. Annual ET rates in Oasis Valley were computed with energy-budget methods using micrometeorological data collected at five sites. ET rates range from 0.6 foot per year in a sparse, dry saltgrass environment to 3.1 feet per year in dense meadow vegetation.</p><p>Mean annual ET from Oasis Valley is estimated to be about 7,800 acre-feet. Mean annual ground-water discharge by ET from Oasis Valley, determined by removing the annual local precipitation component of 0.5 foot, is estimated to be about 6,000 acre-feet. Annual subsurface outflow from Oasis Valley into the Amargosa Desert is estimated to be between 30 and 130 acre-feet. Estimates of total annual ground-water withdrawal from Oasis Valley by municipal and non-municipal users in 1996 and 1999 are 440 acre-feet and 210 acre-feet, respectively. Based on these values, natural annual ground-water discharge from Oasis Valley is about 6,100 acre-feet. Total annual discharge was 6,500 acre-ft in 1996 and 6,300 acre-ft in 1999. This quantity of natural ground-water discharge from Oasis Valley exceeds the previous estimate made in 1962 by a factor of about 2.5.</p><p>Water levels were measured in Oasis Valley to gain additional insight into the ET process. In shallow wells, water levels showed annual fluctuations as large as 7 feet and daily fluctuations as large as 0.2 foot. These fluctuations may be attributed to water loss associated with evapotranspiration. In shallow wells affected by ET, annual minimum depths to water generally occurred in winter or early spring shortly after daily ET reached minimum rates. Annual maximum depths to water generally occurred in late summer or fall shortly after daily ET reached maximum rates. The magnitude of daily water-level fluctuations generally increased as ET increased and decreased as depth to water increased.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/wri014239","usgsCitation":"Reiner, S.R., Laczniak, R.J., DeMeo, G.A., Smith, J.L., Elliott, P.E., Nylund, W., and Fridrich, C.J., 2002, Ground-water discharge determined from measurements of evapotranspiration, other available hydrologic components, and shallow water-level changes, Oasis Valley, Nye County, Nevada: U.S. Geological Survey Water-Resources Investigations Report 2001-4239, Report: vi, 65 p., 2 Plates: 25.50 x 32.00 inches and 25.43 x 33.25 inches, https://doi.org/10.3133/wri014239.","productDescription":"Report: vi, 65 p., 2 Plates: 25.50 x 32.00 inches and 25.43 x 33.25 inches","costCenters":[],"links":[{"id":2955,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/wri/wri014239/","linkFileType":{"id":5,"text":"html"}},{"id":415598,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_46527.htm","linkFileType":{"id":5,"text":"html"}},{"id":159987,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"country":"United States","state":"Nevada","county":"Nye County","otherGeospatial":"Oasis Valley","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -116.8239,\n              37.0833\n            ],\n            [\n              -116.8239,\n              36.875\n            ],\n            [\n              -116.6667,\n              36.875\n            ],\n            [\n              -116.6667,\n              37.0833\n            ],\n            [\n              -116.8239,\n              37.0833\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4aafe4b07f02db66d286","contributors":{"authors":[{"text":"Reiner, S. R.","contributorId":9299,"corporation":false,"usgs":true,"family":"Reiner","given":"S.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":204504,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Laczniak, R. J.","contributorId":46104,"corporation":false,"usgs":true,"family":"Laczniak","given":"R.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":204507,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"DeMeo, G. A.","contributorId":96290,"corporation":false,"usgs":true,"family":"DeMeo","given":"G.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":204510,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Smith, J. LaRue jlsmith@usgs.gov","contributorId":1863,"corporation":false,"usgs":true,"family":"Smith","given":"J.","email":"jlsmith@usgs.gov","middleInitial":"LaRue","affiliations":[],"preferred":true,"id":204508,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Elliott, P. E.","contributorId":90351,"corporation":false,"usgs":true,"family":"Elliott","given":"P.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":204509,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Nylund, W. E.","contributorId":36966,"corporation":false,"usgs":true,"family":"Nylund","given":"W. E.","affiliations":[],"preferred":false,"id":204506,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Fridrich, C. J.","contributorId":15652,"corporation":false,"usgs":true,"family":"Fridrich","given":"C.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":204505,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70161965,"text":"70161965 - 2002 - Structural instability, multiple stable states, and hysteresis in periphyton driven by phosphorus enrichment in the Everglades","interactions":[],"lastModifiedDate":"2016-01-11T11:53:31","indexId":"70161965","displayToPublicDate":"2002-02-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3593,"text":"Theoretical Population Biology","active":true,"publicationSubtype":{"id":10}},"title":"Structural instability, multiple stable states, and hysteresis in periphyton driven by phosphorus enrichment in the Everglades","docAbstract":"<p><span>Periphyton is a key component of the Everglades ecosystems. It is a major primary producer, providing food and habitat for a variety of organisms, contributing material to the surface soil, and regulating water chemistry. Periphyton is sensitive to the phosphorus (P) supply and P enrichment has caused dramatic changes in the native Everglades periphyton assemblages. Periphyton also affects P availability by removing P from the water column and depositing a refractory portion into sediment. A quantitative understanding of the response of periphyton assemblages to P supply and its effects on P cycling could provide critical supports to decision making in the conservation and restoration of the Everglades. We constructed a model to examine the interaction between periphyton and P dynamics. The model contains two differential equations: P uptake and periphyton growth are assumed to follow the Monod equation and are limited by a modified logistic equation. Equilibrium and stability analyses suggest that P loading is the driving force and determines the system behavior. The position and number of steady states and the stability also depend upon the rate of sloughing, through which periphyton deposits refractory P into sediment. Multiple equilibria may exist, with two stable equilibria separated by an unstable equilibrium. Due to nonlinear interplay of periphyton and P in this model, catastrophe and hysteresis are likely to occur.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1006/tpbi.2001.1554","usgsCitation":"Dong, Q., McCormick, P.V., Sklar, F.H., and DeAngelis, D., 2002, Structural instability, multiple stable states, and hysteresis in periphyton driven by phosphorus enrichment in the Everglades: Theoretical Population Biology, v. 61, no. 1, p. 1-13, https://doi.org/10.1006/tpbi.2001.1554.","productDescription":"13 p.","startPage":"1","endPage":"13","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":566,"text":"Southeast Ecological Science Center","active":true,"usgs":true}],"links":[{"id":314121,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Florida","otherGeospatial":"Florida Everglades","volume":"61","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5694e052e4b039675d005e76","contributors":{"authors":[{"text":"Dong, Quan 0000-0003-0571-5884 qdong@usgs.gov","orcid":"https://orcid.org/0000-0003-0571-5884","contributorId":4506,"corporation":false,"usgs":true,"family":"Dong","given":"Quan","email":"qdong@usgs.gov","affiliations":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"preferred":true,"id":588213,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"McCormick, Paul V.","contributorId":92756,"corporation":false,"usgs":true,"family":"McCormick","given":"Paul","email":"","middleInitial":"V.","affiliations":[],"preferred":false,"id":588214,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Sklar, Fred H.","contributorId":23327,"corporation":false,"usgs":true,"family":"Sklar","given":"Fred","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":588215,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"DeAngelis, Donald L. 0000-0002-1570-4057 don_deangelis@usgs.gov","orcid":"https://orcid.org/0000-0002-1570-4057","contributorId":147289,"corporation":false,"usgs":true,"family":"DeAngelis","given":"Donald L.","email":"don_deangelis@usgs.gov","affiliations":[{"id":566,"text":"Southeast Ecological Science Center","active":true,"usgs":true}],"preferred":false,"id":588216,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":61473,"text":"mf2382 - 2002 - Regional stratigraphic cross sections of Cretaceous rocks from east-central Arizona to the Oklahoma Panhandle","interactions":[],"lastModifiedDate":"2017-03-07T09:36:47","indexId":"mf2382","displayToPublicDate":"2002-02-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":325,"text":"Miscellaneous Field Studies Map","code":"MF","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2382","title":"Regional stratigraphic cross sections of Cretaceous rocks from east-central Arizona to the Oklahoma Panhandle","docAbstract":"<p>Sedimentary rocks of Cretaceous age along Transect DD'' in eastern Arizona, northern New Mexico, southern Colorado, and western Oklahoma consist mainly of sandstone, siltstone, shale, limestone, and bentonite. They accumulated as sediments in continental, nearshore marine, and offshore marine environments on the west side of a north-trending epicontinental sea. The rocks record intermittent deposition and erosion as well as regional and local subsidence and uplift possibly beginning in Aptian time (about 121-112 Ma) and occurring in Albian through Maastrichtian time (about 112-65.4 Ma). Most of the Lower Cretaceous (Berriasian through Aptian, 142-112 Ma) in this transect is represented by a basal unconformity. The Cretaceous rocks and unconformities along the transect are depicted on the attached lithostratigraphic cross sections (sheets 1 and 2); one extending from the Mogollon Rim in eastern Arizona to Pagosa Springs in southwestern Colorado and the other from Pagosa Springs, Colorado, to Kenton in western Oklahoma. The same rocks and unconformities are also represented on the attached chronostratigraphic profile (sheet 3), which was prepared mainly from surface and subsurface data shown on the lithostratigraphic cross sections. </p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/mf2382","usgsCitation":"Molenaar, C.M., Cobban, W.A., Merewether, E., Pillmore, C.L., Wolfe, D., and Holbrook, J., 2002, Regional stratigraphic cross sections of Cretaceous rocks from east-central Arizona to the Oklahoma Panhandle: U.S. Geological Survey Miscellaneous Field Studies Map 2382,  Three sheets. Sheet 1, 57 by 36 inches; sheet 2, 44 by 33 inches; sheet 3, 42 by 32 inches (all in color), https://doi.org/10.3133/mf2382.","productDescription":" Three sheets. Sheet 1, 57 by 36 inches; sheet 2, 44 by 33 inches; sheet 3, 42 by 32 inches (all in color)","costCenters":[],"links":[{"id":180434,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":6043,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/mf/2002/mf-2382/","linkFileType":{"id":5,"text":"html"}},{"id":110228,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_45091.htm","linkFileType":{"id":5,"text":"html"},"description":"45091"}],"country":"United States","state":"Arizona, New Mexico, Oklahoma","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -110,34 ], [ -110,38 ], [ -103,38 ], [ -103,34 ], [ -110,34 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a60e4b07f02db634e66","contributors":{"authors":[{"text":"Molenaar, C. M.","contributorId":77904,"corporation":false,"usgs":false,"family":"Molenaar","given":"C.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":265737,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cobban, W. A.","contributorId":21577,"corporation":false,"usgs":true,"family":"Cobban","given":"W.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":265732,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Merewether, E.A.","contributorId":32517,"corporation":false,"usgs":true,"family":"Merewether","given":"E.A.","affiliations":[],"preferred":false,"id":265733,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Pillmore, C. L.","contributorId":46093,"corporation":false,"usgs":true,"family":"Pillmore","given":"C.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":265734,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Wolfe, D.G.","contributorId":50222,"corporation":false,"usgs":true,"family":"Wolfe","given":"D.G.","email":"","affiliations":[],"preferred":false,"id":265735,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Holbrook, J.M.","contributorId":71249,"corporation":false,"usgs":true,"family":"Holbrook","given":"J.M.","email":"","affiliations":[],"preferred":false,"id":265736,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":61470,"text":"mf2363 - 2002 - Geologic map of the Grand Junction Quadrangle, Mesa County, Colorado","interactions":[],"lastModifiedDate":"2017-03-27T10:19:28","indexId":"mf2363","displayToPublicDate":"2002-02-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":325,"text":"Miscellaneous Field Studies Map","code":"MF","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2363","title":"Geologic map of the Grand Junction Quadrangle, Mesa County, Colorado","docAbstract":"      This 1:24,000-scale geologic map of the Grand Junction 7.5' quadrangle, in support of the USGS Western Colorado I-70 Corridor Cooperative Geologic Mapping Project, provides new interpretations of the stratigraphy, structure, and geologic hazards in the area of the junction of the Colorado River and the Gunnison River.  Bedrock strata include the Upper Cretaceous Mancos Shale through the Lower Jurassic Wingate Sandstone units. Below the Mancos Shale, which floors the Grand Valley, the Upper and Lower(?)Cretaceous Dakota Formation and the Lower Cretaceous Burro Canyon Formation hold up much of the resistant northeast- dipping monocline along the northeast side of the Uncompahgre uplift.  The impressive sequence of Jurassic strata below include the Brushy Basin, Salt Wash, and Tidwell Members of the Upper Jurassic Morrison Formation, the Middle Jurassic Wanakah Formation and informal 'board beds' unit and Slick Rock Member of the Entrada Formation, and the Lower Jurassic Kayenta Formation and Wingate Sandstone.  The Upper Triassic Chinle Formation and Early Proterozoic meta-igneous gneiss and migmatitic meta- sedimentary rocks, which are exposed in the Colorado National Monument quadrangle to the west, do not crop out here.  The monoclinal dip slope of the northeastern margin of the Uncompahgre uplift is apparently a Laramide structural feature.  Unlike the southwest-dipping, high-angle reverse faults in the Proterozoic basement and s-shaped fault- propagation folds in the overlying strata found in the Colorado National Monument 7.5' quadrangle along the front of the uplift to the west, the monocline in the map area is unbroken except at two localities.  One locality displays a small asymmetrical graben that drops strata to the southwest.  This faulted character of the structure dies out to the northwest into an asymmetric fault-propagation fold that also drops strata to the southwest.  Probably both parts of this structure are underlain by a northeast-dipping high-angle reverse fault.  The other locality displays a second similar asymmetric fold.  No evidence of post-Laramide tilting or uplift exists here, but the antecedent Unaweep Canyon, only 30 km to the south-southwest of the map area, provides clear evidence of Late Cenozoic, if not Pleistocene, uplift. The major geologic hazards in the area include large landslides associated with the dip-slope-underlain, smectite-rich Brushy Basin Member of the Morrison Formation and overlying Dakota and Burro Canyon Formations.  Active landslides affect the southern bank of the Colorado River where undercutting by the river and smectitic clays in the Mancos trigger landslides.  The Wanakah, Morrison, and Dakota Formations and the Mancos Shale create a significant hazard to houses and other structures by containing expansive smectitic clay.  In addition to seasonal spring floods associated with the Colorado and Gunnison Rivers, a serious flash flood hazard associated with sudden summer thunderstorms threatens the intermittent washes that drain the dip slope of the monocline.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/mf2363","usgsCitation":"Scott, R.B., Carrara, P.E., Hood, W.C., and Murray, K., 2002, Geologic map of the Grand Junction Quadrangle, Mesa County, Colorado: U.S. Geological Survey Miscellaneous Field Studies Map 2363, Map: 32.50 x 32.75 inches; Pamphlet: 20 p.; Companion Files; Metadata; Read Me, https://doi.org/10.3133/mf2363.","productDescription":"Map: 32.50 x 32.75 inches; Pamphlet: 20 p.; Companion Files; Metadata; Read Me","additionalOnlineFiles":"Y","costCenters":[],"links":[{"id":338299,"rank":11,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/mf/2002/mf-2363/mf-2363_pam.pdf","text":"Pamphlet"},{"id":338298,"rank":10,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/mf/2002/mf-2363/mf-2363_map_508.pdf","text":"Map - text only","size":"28 KB","linkFileType":{"id":1,"text":"pdf"}},{"id":110237,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_46652.htm","linkFileType":{"id":5,"text":"html"},"description":"46652"},{"id":182885,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/mf/2002/mf-2363/mf-2363_map.jpg"},{"id":338291,"rank":3,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/mf/2002/mf-2363/mf-2363.tar.gz","text":"GZIPPED TARRED archive of ArcInfo, metadata, etc.","size":"3.6 MB tar.gz"},{"id":338292,"rank":5,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/mf/2002/mf-2363/mf-2363base.tar.gz","text":"GZIPPED TARRED archive of base map","size":"10.7 MB tar.gz"},{"id":338293,"rank":6,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/mf/2002/mf-2363/mf2363.zip","text":"ZIPPED archive of ArcInfo, metadata, etc.","size":"3.4 MB","linkFileType":{"id":6,"text":"zip"}},{"id":338294,"rank":7,"type":{"id":16,"text":"Metadata"},"url":"https://pubs.usgs.gov/mf/2002/mf-2363/mf2363.met","text":"Metadata","size":"29 KB","linkFileType":{"id":2,"text":"txt"}},{"id":338295,"rank":8,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/mf/2002/mf-2363/gjtopo.zip","text":"ZIPPED archive of base map","size":"10.2 MB","linkFileType":{"id":6,"text":"zip"}},{"id":338296,"rank":8,"type":{"id":20,"text":"Read Me"},"url":"https://pubs.usgs.gov/mf/2002/mf-2363/README.TXT","text":"Read me","size":"1 KB","linkFileType":{"id":2,"text":"txt"}},{"id":338297,"rank":9,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/mf/2002/mf-2363/mf-2363_map.pdf","text":"Map","size":"3.9 MB","linkFileType":{"id":1,"text":"pdf"}}],"scale":"24000","country":"United States","state":"Colorado","county":"Mesa County","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -108.61749999999999,39 ], [ -108.61749999999999,39.1175 ], [ -108.5,39.1175 ], [ -108.5,39 ], [ -108.61749999999999,39 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b01e4b07f02db6986dc","contributors":{"authors":[{"text":"Scott, Robert B. rbscott@usgs.gov","contributorId":766,"corporation":false,"usgs":true,"family":"Scott","given":"Robert","email":"rbscott@usgs.gov","middleInitial":"B.","affiliations":[],"preferred":true,"id":265720,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Carrara, Paul E. pcarrara@usgs.gov","contributorId":1342,"corporation":false,"usgs":true,"family":"Carrara","given":"Paul","email":"pcarrara@usgs.gov","middleInitial":"E.","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":265721,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hood, William C.","contributorId":100946,"corporation":false,"usgs":true,"family":"Hood","given":"William","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":265723,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Murray, Kyle E.","contributorId":31825,"corporation":false,"usgs":true,"family":"Murray","given":"Kyle E.","affiliations":[],"preferred":false,"id":265722,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":61469,"text":"mf2361 - 2002 - Geologic map of the Eagle Quadrangle, Eagle County, Colorado","interactions":[],"lastModifiedDate":"2017-03-07T08:45:01","indexId":"mf2361","displayToPublicDate":"2002-02-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":325,"text":"Miscellaneous Field Studies Map","code":"MF","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2361","title":"Geologic map of the Eagle Quadrangle, Eagle County, Colorado","docAbstract":"The Eagle quadrangle covers an area that straddles the Eagle River and Interstate 70 (I-70) and it includes the town of Eagle, Colo., which is located in the southwestern part of the quadrangle, just south of I-70 and the Eagle River, about 37 km west of Vail, Colo.  The map area is part of the I-70 urban corridor, which is experiencing rapid and escalating urban growth.  Geologic mapping along this corridor is needed for ongoing land-use planning.  A variety of rocks and deposits characterize the map area and areas nearby.  Sedimentary rocks present in the map area range in age from Pennsylvanian rocks, which were deposited in the ancestral Eagle basin during the formation of the ancestral Rocky Mountains, to Late Cretaceous rocks that were deposited just prior to the formation of the present Rocky Mountains.  The Pennsylvanian rocks in the map area include a thick sequence of evaporitic rocks (Eagle Valley Evaporite).  These evaporitic rocks are commonly complexly folded throughout the southern part of the quadrangle where they are exposed.  In general, in the central and northern parts of the quadrangle, the sedimentary rocks overlying the evaporite dip gently to moderately northward.  Consequently, the youngest sedimentary rocks (Late Cretaceous rocks) are exposed dipping gently to the north in the northern part of the quadrangle; landslide complexes are widespread along the northerly dipping, dip slopes in shaly rocks of the Cretaceous sequence in the northeastern part of the map area.  During the Early Miocene, basaltic volcanism formed extensive basaltic flows that mantled the previously deformed and eroded sedimentary rocks.  Erosional remnants of the basaltic flows are preserved in the southeastern, west-central, and north-central parts of the map area.  Some of these basaltic flows are faulted and downdropped in a manner that suggests they were downdropped in areas where large volumes of the underlying evaporitic rocks were removed from the subsurface, beneath the basaltic rocks, by dissolution or flowage of the evaporite in the subsurface.  Quaternary and late Tertiary(?) surficial deposits in the map area consist mainly of Quaternary alluvium and colluvium, late and middle Pleistocene terrace gravels of the Eagle River, Miocene(?) gravel remnants of the ancestral Eagle River and its tributaries, and Pleistocene to recent mass movement deposits that include landslides and debris flows.  Potential geologic hazards in the map area include landslides, debris flows, rockfalls, local flooding, ground subsidence, and expansive and corrosive soils.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/mf2361","usgsCitation":"Lidke, D., 2002, Geologic map of the Eagle Quadrangle, Eagle County, Colorado: U.S. Geological Survey Miscellaneous Field Studies Map 2361, Sheet 38 by 32 inches ( in color). (Accompanied by 18 page text.), https://doi.org/10.3133/mf2361.","productDescription":"Sheet 38 by 32 inches ( in color). (Accompanied by 18 page text.)","costCenters":[],"links":[{"id":182787,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":6039,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/mf/2002/mf-2361/","linkFileType":{"id":5,"text":"html"}},{"id":110285,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_49794.htm","linkFileType":{"id":5,"text":"html"},"description":"49794"}],"scale":"24000","country":"United States","state":"Colorado","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -106.86749999999999,39.6175 ], [ -106.86749999999999,39.75 ], [ -106.75,39.75 ], [ -106.75,39.6175 ], [ -106.86749999999999,39.6175 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae3e4b07f02db6891c6","contributors":{"authors":[{"text":"Lidke, D. J.","contributorId":10857,"corporation":false,"usgs":true,"family":"Lidke","given":"D. J.","affiliations":[],"preferred":false,"id":265719,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":61472,"text":"mf2380 - 2002 - Geologic map of the Nor Arvik coal site, southern Armenia","interactions":[],"lastModifiedDate":"2017-03-07T09:18:46","indexId":"mf2380","displayToPublicDate":"2002-02-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":325,"text":"Miscellaneous Field Studies Map","code":"MF","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2380","title":"Geologic map of the Nor Arvik coal site, southern Armenia","docAbstract":"<p>No abstract available.&nbsp;</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Denver, CO","doi":"10.3133/mf2380","usgsCitation":"Johnson, E.A., Martirosyan, A., Pierce, B., Malkhassian, G., and Brownfield, M.E., 2002, Geologic map of the Nor Arvik coal site, southern Armenia: U.S. Geological Survey Miscellaneous Field Studies Map 2380, Sheet 30 by 22 inches (in color). (Accompanied by 16 page text.), https://doi.org/10.3133/mf2380.","productDescription":"Sheet 30 by 22 inches (in color). (Accompanied by 16 page text.)","costCenters":[],"links":[{"id":182978,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":6042,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/mf/2002/mf-2380/","linkFileType":{"id":5,"text":"html"}}],"scale":"1","country":"Armenia","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4afbe4b07f02db696198","contributors":{"authors":[{"text":"Johnson, E. A.","contributorId":87893,"corporation":false,"usgs":true,"family":"Johnson","given":"E.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":265731,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Martirosyan, Artur","contributorId":70812,"corporation":false,"usgs":true,"family":"Martirosyan","given":"Artur","email":"","affiliations":[],"preferred":false,"id":265730,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Pierce, B.S.","contributorId":13639,"corporation":false,"usgs":true,"family":"Pierce","given":"B.S.","email":"","affiliations":[],"preferred":false,"id":265728,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Malkhassian, Gourgen","contributorId":35010,"corporation":false,"usgs":true,"family":"Malkhassian","given":"Gourgen","email":"","affiliations":[],"preferred":false,"id":265729,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Brownfield, Michael E. 0000-0003-3633-1138","orcid":"https://orcid.org/0000-0003-3633-1138","contributorId":7250,"corporation":false,"usgs":true,"family":"Brownfield","given":"Michael","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":265727,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":61465,"text":"mf2327A - 2002 - Geologic map of part of the southern Toquima Range and adjacent areas, Nye County, Nevada","interactions":[],"lastModifiedDate":"2017-02-28T15:22:04","indexId":"mf2327A","displayToPublicDate":"2002-02-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":325,"text":"Miscellaneous Field Studies Map","code":"MF","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2327","chapter":"A","title":"Geologic map of part of the southern Toquima Range and adjacent areas, Nye County, Nevada","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/mf2327A","usgsCitation":"Shawe, D.R., 2002, Geologic map of part of the southern Toquima Range and adjacent areas, Nye County, Nevada: U.S. Geological Survey Miscellaneous Field Studies Map 2327, 1 sheet, https://doi.org/10.3133/mf2327A.","productDescription":"1 sheet","costCenters":[],"links":[{"id":182276,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":6036,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/mf/2002/mf-2327-a/","linkFileType":{"id":5,"text":"html"}},{"id":110235,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_46645.htm","linkFileType":{"id":5,"text":"html"},"description":"46645"}],"scale":"48000","country":"United States","state":"Nevada","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -117.11749999999999,38.5 ], [ -117.11749999999999,38.75 ], [ -116.75,38.75 ], [ -116.75,38.5 ], [ -117.11749999999999,38.5 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b12e4b07f02db6a27b6","contributors":{"authors":[{"text":"Shawe, D. R.","contributorId":6863,"corporation":false,"usgs":true,"family":"Shawe","given":"D.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":265704,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":61466,"text":"mf2352 - 2002 - Geologic map of the Tetilla Peak Quadrangle, Santa Fe and Sandoval counties, New Mexico","interactions":[],"lastModifiedDate":"2017-03-02T15:44:59","indexId":"mf2352","displayToPublicDate":"2002-02-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":325,"text":"Miscellaneous Field Studies Map","code":"MF","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2352","title":"Geologic map of the Tetilla Peak Quadrangle, Santa Fe and Sandoval counties, New Mexico","docAbstract":"This digital geologic map summarizes all available geologic information for the Tetilla Peak quadrangle located immediately southwest of Santa Fe, New Mexico.  The geologic map consists of new polygon (geologic map units) and line (contact, fault, fold axis, dike, flow contact, hachure) data, as well as point data (locations for structural measurements, geochemical and geochronologic data, geophysical soundings, and water wells).  The map database has been generated at 1:24,000 scale, and provides significant new geologic information for an area of the southern Cerros del Rio volcanic field, which sits astride the boundary of the Espanola and Santo Domingo basins of the Rio Grande rift.\r\n      The quadrangle includes the west part of the village of La Cienega along its eastern border and includes the southeasternmost part of the Cochiti Pueblo reservation along its northwest side.  The central part of the quadrangle consists of Santa Fe National Forest and Bureau of Land Management lands, and parts of several Spanish-era land grants.\r\n      Interstate 25 cuts through the southern half of the quadrangle between Santa Fe and Santo Domingo Pueblo.  Canada de Santa Fe, a major river tributary to the Rio Grande, cuts through the quadrangle, but there is no dirt or paved road along the canyon bottom.\r\n      A small abandoned uranium mine (the La Bajada mine) is found in the bottom of the Canada de Santa Fe about 3 km east of the La Bajada fault zone; it has been partially reclaimed.\r\n\r\n      The surface geology of the Tetilla Peak quadrangle consists predominantly of a thin (1-2 m generally, locally as thick as 10? m) layer of windblown surficial deposits that has been reworked colluvially.  Locally, landslide, fluvial, and pediment deposits are also important.  These colluvial deposits mantle the principal bedrocks units, which are (from most to least common):  (1) basalts, basanites, andesite, and trachyte of the Pliocene (2.7-2.2 Ma) Cerros del Rio volcanic field; (2) unconsolidated deposits of the Santa Fe Group, mainly along the western border, in the hanging wall of the La Bajada fault zone, but locally extending 2-3 km east under the Cerros del Rio volcanic field; (3) older Tertiary volcanic and sedimentary rocks (Abiquiu?, Espinaso, and Galisteo Formations); (4) intrusive rocks of the Cerrillos intrusive center that are roughly coeval with the Espinaso volcanic rocks; and (5) Mesozoic sedimentary rocks ranging in age from the Upper Triassic Chinle Formation to the Upper Cretaceous Mancos Shale.","language":"English","doi":"10.3133/mf2352","usgsCitation":"Sawyer, D., Shroba, R., Minor, S., and Thompson, R.A., 2002, Geologic map of the Tetilla Peak Quadrangle, Santa Fe and Sandoval counties, New Mexico: U.S. Geological Survey Miscellaneous Field Studies Map 2352, https://doi.org/10.3133/mf2352.","costCenters":[],"links":[{"id":182277,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":110236,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_46651.htm","linkFileType":{"id":5,"text":"html"},"description":"46651"},{"id":6037,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/mf/2002/mf-2352/","linkFileType":{"id":5,"text":"html"}}],"scale":"24000","country":"United States","state":"New Mexico","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -106.25,35.5 ], [ -106.25,35.6175 ], [ -106.11749999999999,35.6175 ], [ -106.11749999999999,35.5 ], [ -106.25,35.5 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae4e4b07f02db68a218","contributors":{"authors":[{"text":"Sawyer, D.A.","contributorId":107666,"corporation":false,"usgs":true,"family":"Sawyer","given":"D.A.","email":"","affiliations":[],"preferred":false,"id":265708,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Shroba, R. R.","contributorId":44133,"corporation":false,"usgs":true,"family":"Shroba","given":"R. R.","affiliations":[],"preferred":false,"id":265705,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Minor, S.A.","contributorId":65047,"corporation":false,"usgs":true,"family":"Minor","given":"S.A.","email":"","affiliations":[],"preferred":false,"id":265706,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Thompson, R. A.","contributorId":100420,"corporation":false,"usgs":true,"family":"Thompson","given":"R.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":265707,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":33072,"text":"b2190 - 2002 - Joint inversion of acoustic and resistivity data for the estimation of gas hydrate concentration","interactions":[],"lastModifiedDate":"2012-02-02T00:09:16","indexId":"b2190","displayToPublicDate":"2002-02-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":306,"text":"Bulletin","code":"B","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2190","title":"Joint inversion of acoustic and resistivity data for the estimation of gas hydrate concentration","docAbstract":"Downhole log measurements, such as acoustic or electrical resistivity logs, are frequently used to estimate in situ gas hydrate concentrations in the pore space of sedimentary rocks. Usually the gas hydrate concentration is estimated separately based on each log measurement. However, measurements are related to each other through the gas hydrate concentration, so the gas hydrate concentrations can be estimated by jointly inverting available logs. Because the magnitude of slowness of acoustic and resistivity values differs by more than an order of magnitude, a least-squares method, weighted by the inverse of the observed values, is attempted. Estimating the resistivity of connate water and gas hydrate concentration simultaneously is problematic, because the resistivity of connate water is independent\r\nof acoustics. In order to overcome this problem, a coupling constant is introduced in the Jacobian matrix. In the use of different\r\nlogs to estimate gas hydrate concentration, a joint inversion\r\nof different measurements is preferred to the averaging of each inversion result.","language":"ENGLISH","doi":"10.3133/b2190","usgsCitation":"Lee, M.W., 2002, Joint inversion of acoustic and resistivity data for the estimation of gas hydrate concentration (Version 1.0): U.S. Geological Survey Bulletin 2190, 11 p., https://doi.org/10.3133/b2190.","productDescription":"11 p.","costCenters":[],"links":[{"id":163904,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":3276,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/bul/b2190/","linkFileType":{"id":5,"text":"html"}}],"edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b32e4b07f02db6b4911","contributors":{"authors":[{"text":"Lee, Myung W. mlee@usgs.gov","contributorId":779,"corporation":false,"usgs":true,"family":"Lee","given":"Myung","email":"mlee@usgs.gov","middleInitial":"W.","affiliations":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":209816,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":33071,"text":"b2189 - 2002 - A summary of the U.S. Geological Survey 1999 resource assessment of selected coal zones in the Northern Rocky Mountains and Great Plains region, Wyoming, Montana, and North Dakota","interactions":[],"lastModifiedDate":"2012-02-02T00:09:16","indexId":"b2189","displayToPublicDate":"2002-02-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":306,"text":"Bulletin","code":"B","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2189","title":"A summary of the U.S. Geological Survey 1999 resource assessment of selected coal zones in the Northern Rocky Mountains and Great Plains region, Wyoming, Montana, and North Dakota","docAbstract":"In 1999, 1,100 million short tons of coal were produced in the United States, 38 percent from the Northern Rocky Mountains and Great Plains region. This coal has low ash content, and sulfur content is in compliance with Clean Air Act standards (U.S. Statutes at Large, 1990).The National Coal Resource Assessment for this region includes geologic, stratigraphic, palynologic, and geochemical studies and resource calculations for 18 major coal zones in the Powder River, Williston, Green River, Hanna, and Carbon Basins. Calculated resources are 660,000 million short tons. Results of the study are available in U.S. Geological Survey Professional Paper 1625?A (Fort Union Coal Assess-ment Team, 1999) and Open-File Report 99-376 (Flores and others, 1999) in CD-ROM format.","language":"ENGLISH","doi":"10.3133/b2189","usgsCitation":"Ellis, M., and Nichols, D.J., 2002, A summary of the U.S. Geological Survey 1999 resource assessment of selected coal zones in the Northern Rocky Mountains and Great Plains region, Wyoming, Montana, and North Dakota (Version 1.0): U.S. Geological Survey Bulletin 2189, 10 p., https://doi.org/10.3133/b2189.","productDescription":"10 p.","costCenters":[],"links":[{"id":163903,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":3275,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/bul/b2189/","linkFileType":{"id":5,"text":"html"}}],"edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b17e4b07f02db6a5f6d","contributors":{"authors":[{"text":"Ellis, M.S.","contributorId":64301,"corporation":false,"usgs":true,"family":"Ellis","given":"M.S.","email":"","affiliations":[],"preferred":false,"id":209815,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Nichols, D. J.","contributorId":55466,"corporation":false,"usgs":true,"family":"Nichols","given":"D.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":209814,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70208243,"text":"70208243 - 2002 - Early developments in petroleum geochemistry","interactions":[],"lastModifiedDate":"2020-01-31T12:46:18","indexId":"70208243","displayToPublicDate":"2002-01-31T12:32:07","publicationYear":"2002","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2958,"text":"Organic Geochemistry","active":true,"publicationSubtype":{"id":10}},"title":"Early developments in petroleum geochemistry","docAbstract":"<p><span>Petroleum&nbsp;</span><a title=\"Learn more about Geochemistry from ScienceDirect's AI-generated Topic Pages\" href=\"https://www.sciencedirect.com/topics/chemistry/geochemistry\" data-mce-href=\"https://www.sciencedirect.com/topics/chemistry/geochemistry\">geochemistry</a><span>&nbsp;is the outgrowth of the application of the principles and methods of organic chemistry to&nbsp;<a title=\"Learn more about Petroleum Refining from ScienceDirect's AI-generated Topic Pages\" href=\"https://www.sciencedirect.com/topics/chemistry/petroleum-refining\" data-mce-href=\"https://www.sciencedirect.com/topics/chemistry/petroleum-refining\">petroleum refining</a>&nbsp;and&nbsp;<a title=\"Learn more about Petroleum Geology from ScienceDirect's AI-generated Topic Pages\" href=\"https://www.sciencedirect.com/topics/earth-and-planetary-sciences/petroleum-geology\" data-mce-href=\"https://www.sciencedirect.com/topics/earth-and-planetary-sciences/petroleum-geology\">petroleum geology</a>. This paper reviews 120 years of petroleum geochemistry, from about 1860 to 1980, and includes a discussion of the formal recognition of petroleum geochemistry as an earth-science discipline starting in 1959 when a general petroleum geochemistry symposium was first organized at Fordham University, New York. A chronology of significant events, including concepts, techniques, and textbook publications, is presented. Because petroleum geochemistry has been a tool for petroleum exploration from the beginning, the early developments of surface prospecting, source-rock identification, and oil/oil and oil/source correlation are discussed, along with the application of geochemistry to petroleum migration, accumulation, and alteration. In addition the paper deals with the&nbsp;<a title=\"Learn more about Biomarker from ScienceDirect's AI-generated Topic Pages\" href=\"https://www.sciencedirect.com/topics/earth-and-planetary-sciences/biomarker\" data-mce-href=\"https://www.sciencedirect.com/topics/earth-and-planetary-sciences/biomarker\">biomarker</a>&nbsp;revolution, which began in earnest about 1964, and with early models of geothermal history. Concepts in petroleum geochemistry have continually evolved, enhanced by the development of new analytical techniques, leading to new discoveries concerning the origin and occurrence of petroleum.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/S0146-6380(02)00056-6","usgsCitation":"Hunt, J., Philp, R.P., and Kvenvolden, K.A., 2002, Early developments in petroleum geochemistry: Organic Geochemistry, v. 33, no. 9, p. 1025-1052, https://doi.org/10.1016/S0146-6380(02)00056-6.","productDescription":"28 p.","startPage":"1025","endPage":"1052","costCenters":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":371817,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"33","issue":"9","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Hunt, J.M.","contributorId":222090,"corporation":false,"usgs":false,"family":"Hunt","given":"J.M.","email":"","affiliations":[],"preferred":false,"id":781137,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Philp, R. Paul","contributorId":209694,"corporation":false,"usgs":false,"family":"Philp","given":"R.","email":"","middleInitial":"Paul","affiliations":[],"preferred":false,"id":781138,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kvenvolden, Keith A. kkvenvolden@usgs.gov","contributorId":3384,"corporation":false,"usgs":true,"family":"Kvenvolden","given":"Keith","email":"kkvenvolden@usgs.gov","middleInitial":"A.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":781139,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70179948,"text":"70179948 - 2002 - Monitoring and assessment of juvenile steelhead on Toppenish National Wildlife Refuge. Quick Response Project for 2001","interactions":[],"lastModifiedDate":"2017-01-20T12:50:39","indexId":"70179948","displayToPublicDate":"2002-01-28T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":1,"text":"Federal Government Series"},"title":"Monitoring and assessment of juvenile steelhead on Toppenish National Wildlife Refuge. Quick Response Project for 2001","docAbstract":"<p>Toppenish National Wildlife Refuge (TNWR) in south central Washington was established in 1964 to provide an important link in the chain of feeding and resting areas for waterfowl and other migratory birds using the Pacific Flyway. Wetlands on TNWR include both natural floodplain wetlands along Toppenish Creek and man-made impoundments designed to mimic natural floodplain processes. Wetland improvement projects were completed between 1995-1998 to restore wetland habitat conditions and eliminate monotypic stands of invasive reed canary grass. Habitat improvements boosted fall/winter use from 2,000 to 50,000 waterfowl, and increased overall use by many species of water birds, shorebirds, and other migratory birds. Increased use by bald eagles, peregrine falcons, and willow flycatchers has also been recorded. </p>","language":"English","publisher":"U.S. Fish and Wildlife Service","usgsCitation":"Jezorek, I.G., and Petersen, J.H., 2002, Monitoring and assessment of juvenile steelhead on Toppenish National Wildlife Refuge. Quick Response Project for 2001, 39 p. .","productDescription":"39 p. ","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":333600,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Washington","otherGeospatial":"Toppenish National Wildlife Refuge ","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -120.36672592163085,\n              46.31741410882059\n            ],\n            [\n              -120.31522750854492,\n              46.31682130510615\n            ],\n            [\n              -120.31479835510252,\n              46.312908639525446\n            ],\n            [\n              -120.3098201751709,\n              46.31320506337827\n            ],\n            [\n              -120.30956268310545,\n              46.311130062692634\n            ],\n            [\n              -120.32011985778807,\n              46.311367209609834\n            ],\n            [\n              -120.32037734985352,\n              46.313382916919316\n            ],\n            [\n              -120.32535552978514,\n              46.31326434795617\n            ],\n            [\n              -120.32552719116212,\n              46.309647871179955\n            ],\n            [\n              -120.33205032348631,\n              46.30958858268458\n            ],\n            [\n              -120.33591270446776,\n              46.30579398539968\n            ],\n            [\n              -120.35676956176758,\n              46.30644620052859\n            ],\n            [\n              -120.3571128845215,\n              46.30253279319276\n            ],\n            [\n              -120.37633895874023,\n              46.30271068141338\n            ],\n            [\n              -120.37651062011719,\n              46.301584046254575\n            ],\n            [\n              -120.38114547729492,\n              46.30164334341986\n            ],\n            [\n              -120.38140296936034,\n              46.309825736280764\n            ],\n            [\n              -120.37299156188965,\n              46.31006288884942\n            ],\n            [\n              -120.3727340698242,\n              46.308106349428115\n            ],\n            [\n              -120.36749839782713,\n              46.30828421953817\n            ],\n            [\n              -120.36672592163085,\n              46.31741410882059\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58833027e4b0d002316377c8","contributors":{"authors":[{"text":"Jezorek, Ian G. 0000-0002-3842-3485 ijezorek@usgs.gov","orcid":"https://orcid.org/0000-0002-3842-3485","contributorId":3572,"corporation":false,"usgs":true,"family":"Jezorek","given":"Ian","email":"ijezorek@usgs.gov","middleInitial":"G.","affiliations":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"preferred":true,"id":659267,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Petersen, James H. petersen@usgs.gov","contributorId":23231,"corporation":false,"usgs":true,"family":"Petersen","given":"James","email":"petersen@usgs.gov","middleInitial":"H.","affiliations":[],"preferred":false,"id":659268,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70180950,"text":"70180950 - 2002 - Paulanoblella , nomen novum (Radiolaria) replaces Noblella Kozur, Mostler & Repetski, 1996, a homonym of Noblella Barbour, 1930 (Amphibia)","interactions":[],"lastModifiedDate":"2017-02-09T15:05:57","indexId":"70180950","displayToPublicDate":"2002-01-20T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2391,"text":"Journal of Micropalaeontology","active":true,"publicationSubtype":{"id":10}},"title":"Paulanoblella , nomen novum (Radiolaria) replaces Noblella Kozur, Mostler & Repetski, 1996, a homonym of Noblella Barbour, 1930 (Amphibia)","docAbstract":"<p><span class=\"EXLDetailsDisplayVal\"><span class=\"searchword\">Kozur</span> et al . (<span class=\"searchword\">1996</span>) reported and described some well-preserved Lower Ordovician (Tremadocian) <span class=\"searchword\">Radiolaria</span>from central Nevada and established several new taxa, among them a new genus <span class=\"searchword\">Noblella</span> , assigned to the Family Protoentactiniidae <span class=\"searchword\">Kozur</span>, <span class=\"searchword\">Mostler</span> &amp; <span class=\"searchword\">Repetski</span>, <span class=\"searchword\">1996</span>. Dr <span class=\"searchword\">J</span>. K. Page kindly informed us that the genus <span class=\"searchword\">Noblella</span> already was established for an amphibian genus, Family Brachycephalidae, type species N. peruviana (Noble), byBarbour (<span class=\"searchword\">1930</span>; <span class=\"searchword\">p</span>. 81). Therefore, the genus name <span class=\"searchword\">Noblella</span> <span class=\"searchword\">Kozur</span>, <span class=\"searchword\">Mostler</span> &amp; <span class=\"searchword\">Repetski</span>, <span class=\"searchword\">1996</span> non! <span class=\"searchword\">Noblella</span><span class=\"searchword\">Barbour</span>, <span class=\"searchword\">1930</span>, is invalid because of homonymy. We here replace this junior <span class=\"searchword\">homonym</span> with <span class=\"searchword\">Paulanoblella</span> <span class=\"searchword\">Kozur</span> &amp; <span class=\"searchword\">Repetski</span>, <span class=\"searchword\">nomen</span><span class=\"searchword\">novum</span>.</span> </p>","language":"English","publisher":"Lyell Collection (Geological Society of London)","publisherLocation":"London, U.K.","doi":"10.1144/jm.21.1.28","issn":"0262-821X ","usgsCitation":"Kozur, H.W., and Repetski, J.E., 2002, Paulanoblella , nomen novum (Radiolaria) replaces Noblella Kozur, Mostler & Repetski, 1996, a homonym of Noblella Barbour, 1930 (Amphibia): Journal of Micropalaeontology, v. 21, no. 1, p. 28-28, https://doi.org/10.1144/jm.21.1.28.","productDescription":"1 p.","startPage":"28","endPage":"28","costCenters":[],"links":[{"id":478609,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1144/jm.21.1.28","text":"Publisher Index Page"},{"id":335091,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"21","issue":"1","noUsgsAuthors":false,"publicationDate":"2002-05-01","publicationStatus":"PW","scienceBaseUri":"589d8dd8e4b0efcedb7ae5e2","contributors":{"authors":[{"text":"Kozur, H. W.","contributorId":57301,"corporation":false,"usgs":false,"family":"Kozur","given":"H.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":662947,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Repetski, John E. 0000-0002-2298-7120 jrepetski@usgs.gov","orcid":"https://orcid.org/0000-0002-2298-7120","contributorId":2596,"corporation":false,"usgs":true,"family":"Repetski","given":"John","email":"jrepetski@usgs.gov","middleInitial":"E.","affiliations":[{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true},{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"preferred":true,"id":662948,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70210152,"text":"70210152 - 2002 - A preliminary study on fine structures of Jiashi earthquake region and earthquake generating fault","interactions":[],"lastModifiedDate":"2020-05-18T13:47:38.898532","indexId":"70210152","displayToPublicDate":"2002-01-18T08:37:59","publicationYear":"2002","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":635,"text":"Acta Geophysica Sinica","active":true,"publicationSubtype":{"id":10}},"title":"A preliminary study on fine structures of Jiashi earthquake region and earthquake generating fault","docAbstract":"<p>It is very unusual that nine large earthquakes of similar magnitudes (M = 6.1-6.8) occured within a very small area and a very short period of time (1997-1998) in Jiashi of Xinjiang Province, Northwest China. This paper analyzes the observed data of the aftershocks in the Jiashi earthquake region for studying the generating mechanism and deep structural background of the Jiashi strong earthquake swarm. The simultaneous inversion method was used to calculate the hypocenter positions and 3-D velocity structure of this region. The results show that the aftershocks concentrated in a NNE-trending belt, which roughly coincides with the NE-trending belt of the two strong earthquake belts. Velocity structure obtained from 3-D inversion suggests that there exist two low velocity zones, one trending NNE and the other NNW, below the depth of 12 km. These low velocity zones are almost consistent with the two strong earthquake belts. The preliminary results lead to the conclusion that the low velocity zones correspond to two deep crustal faults. At the time of our observation, microearthquakes took place on the NNE-trending fault, while the NNW-trending fault was relatively quiescent.</p>","language":"English","publisher":"Science Press","usgsCitation":"Li, S., Zhang, X., Mooney, W.D., Lai, X., Michael, A., and Duan, Y., 2002, A preliminary study on fine structures of Jiashi earthquake region and earthquake generating fault: Acta Geophysica Sinica, v. 45, no. 1, p. 76-82.","productDescription":"7 p.","startPage":"76","endPage":"82","costCenters":[{"id":237,"text":"Earthquake Science 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S.-L.","contributorId":224740,"corporation":false,"usgs":false,"family":"Li","given":"S.-L.","email":"","affiliations":[],"preferred":false,"id":789321,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Zhang, X.","contributorId":30193,"corporation":false,"usgs":true,"family":"Zhang","given":"X.","email":"","affiliations":[],"preferred":false,"id":789322,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mooney, Walter D. 0000-0002-5310-3631 mooney@usgs.gov","orcid":"https://orcid.org/0000-0002-5310-3631","contributorId":3194,"corporation":false,"usgs":true,"family":"Mooney","given":"Walter","email":"mooney@usgs.gov","middleInitial":"D.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":789323,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lai, X.-L.","contributorId":224741,"corporation":false,"usgs":false,"family":"Lai","given":"X.-L.","email":"","affiliations":[],"preferred":false,"id":789324,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Michael, A.J. 0000-0002-2403-5019","orcid":"https://orcid.org/0000-0002-2403-5019","contributorId":52192,"corporation":false,"usgs":true,"family":"Michael","given":"A.J.","affiliations":[],"preferred":false,"id":789325,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Duan, Y.-H.","contributorId":224742,"corporation":false,"usgs":false,"family":"Duan","given":"Y.-H.","email":"","affiliations":[],"preferred":false,"id":789326,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70207884,"text":"70207884 - 2002 - Volcanic breccia and hyaloclastite in blocks from the Nuuanu and Wailau landslides, Hawaii","interactions":[],"lastModifiedDate":"2020-01-16T15:57:31","indexId":"70207884","displayToPublicDate":"2002-01-16T15:47:35","publicationYear":"2002","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Volcanic breccia and hyaloclastite in blocks from the Nuuanu and Wailau landslides, Hawaii","docAbstract":"<p>Steep slopes of giant landslide blocks in the Nuuanu and Wailau landslides expose fragmental volcanic rocks subdivided into monomict and polymic t hyaloclastite and breccia. The various samples form as 1) secondary slopemantling unlithified polymict breccia consisting of clasts set in a mud matrix; 2 ) monomict and polymict hyaloclastite and polymict breccia, with zeolite cement, that form downslope of the shoreline where lava flows enter the sea; and 3 ) monomict breccia formed by tectonic fragmentation of glassy submarine-erupted pillow basalt. Lavas erupted from single volcanoes are highly variable in major-element composition, even during their tholeiitic shield stage, making it difficult to identify which landslide block was derived from which volcano. Low-temperature fluids circulate through the fragmental deposits on the flanks of the volcanoes, partially altering the glass to palagonite and cementing the volcaniclastic rocks with Na- and K-rich zeolites. Volcano spreading along low-angle thrust faults laterally transports deep early submarine pillow lava out to the flank of the volcano where it crops out as tectonic monomict breccia. The faults underlying the landslide blocks are within this tectonized core of the volcano, not simply within the shallow slope deposits of hyaloclastite and breccia. The Nuuanu landslide predates the 1.5 Ma Wailau landslide. </p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Hawaiian Volcanoes: Deep Underwater Perspectives","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":"American Geophysical Union","doi":"10.1029/GM128p0279","usgsCitation":"Clague, D., Moore, J.G., and Davis, A.S., 2002, Volcanic breccia and hyaloclastite in blocks from the Nuuanu and Wailau landslides, Hawaii, chap. <i>of</i> Hawaiian Volcanoes: Deep Underwater Perspectives, v. 128, p. 279-296, https://doi.org/10.1029/GM128p0279.","productDescription":"18 p.","startPage":"279","endPage":"296","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":371325,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawaii","otherGeospatial":"Nuuanu and Wailau ","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -158.367919921875,\n              21.022982546427425\n            ],\n            [\n              -156.4837646484375,\n              21.022982546427425\n            ],\n            [\n              -156.4837646484375,\n              22.27893059841188\n            ],\n            [\n              -158.367919921875,\n              22.27893059841188\n            ],\n            [\n              -158.367919921875,\n              21.022982546427425\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"128","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Clague, D.","contributorId":9398,"corporation":false,"usgs":true,"family":"Clague","given":"D.","affiliations":[],"preferred":false,"id":779632,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Moore, James G. 0000-0002-7543-2401 jmoore@usgs.gov","orcid":"https://orcid.org/0000-0002-7543-2401","contributorId":2892,"corporation":false,"usgs":true,"family":"Moore","given":"James","email":"jmoore@usgs.gov","middleInitial":"G.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":779633,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Davis, A. S.","contributorId":41424,"corporation":false,"usgs":true,"family":"Davis","given":"A.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":779634,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70182113,"text":"70182113 - 2002 - Accurate mass analysis of ethanesulfonic acid degradates of acetochlor and alachlor using high-performance liquid chromatography and time-of-flight mass spectrometry","interactions":[],"lastModifiedDate":"2022-06-28T16:37:45.537801","indexId":"70182113","displayToPublicDate":"2002-01-16T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2214,"text":"Journal of Chromatography A","active":true,"publicationSubtype":{"id":10}},"title":"Accurate mass analysis of ethanesulfonic acid degradates of acetochlor and alachlor using high-performance liquid chromatography and time-of-flight mass spectrometry","docAbstract":"<p><span>Degradates of&nbsp;acetochlor&nbsp;and&nbsp;alachlor&nbsp;(ethanesulfonic acids, ESAs) were analyzed in both standards and in a groundwater sample using high-performance liquid chromatography–time-of-flight mass spectrometry with&nbsp;</span>electrospray<span>&nbsp;ionization. The negative pseudomolecular ion of the&nbsp;secondary amide&nbsp;of acetochlor ESA and alachlor ESA gave average masses of 256.0750±0.0049 amu and 270.0786±0.0064 amu respectively. Acetochlor and alachlor ESA gave similar masses of 314.1098±0.0061 amu and 314.1153±0.0048 amu; however, they could not be distinguished by accurate mass because they have the same empirical formula. On the other hand, they may be distinguished using positive-ion electrospray because of different fragmentation spectra, which did not occur using negative-ion electrospray.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/S0021-9673(01)01470-4","usgsCitation":"Thurman, E., Ferrer, I., and Parry, R., 2002, Accurate mass analysis of ethanesulfonic acid degradates of acetochlor and alachlor using high-performance liquid chromatography and time-of-flight mass spectrometry: Journal of Chromatography A, v. 957, no. 1, p. 3-9, https://doi.org/10.1016/S0021-9673(01)01470-4.","productDescription":"7 p.","startPage":"3","endPage":"9","costCenters":[],"links":[{"id":335712,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"957","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58a6c83de4b025c4642862e6","contributors":{"authors":[{"text":"Thurman, E.M.","contributorId":102864,"corporation":false,"usgs":true,"family":"Thurman","given":"E.M.","affiliations":[],"preferred":false,"id":669649,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ferrer, Imma","contributorId":68606,"corporation":false,"usgs":true,"family":"Ferrer","given":"Imma","affiliations":[],"preferred":false,"id":669650,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Parry, R.","contributorId":21428,"corporation":false,"usgs":true,"family":"Parry","given":"R.","email":"","affiliations":[],"preferred":false,"id":669651,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70182121,"text":"70182121 - 2002 - Human exposure to pesticides via drinking water; the missing link","interactions":[],"lastModifiedDate":"2017-02-16T13:04:32","indexId":"70182121","displayToPublicDate":"2002-01-10T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Human exposure to pesticides via drinking water; the missing link","conferenceTitle":"International conference on Pesticide exposure and health","language":"English","usgsCitation":"Wangsness, D.J., 2002, Human exposure to pesticides via drinking water; the missing link, International conference on Pesticide exposure and health, v. 2002.","costCenters":[],"links":[{"id":335722,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"2002","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58a6c83de4b025c4642862e8","contributors":{"authors":[{"text":"Wangsness, David J.","contributorId":81475,"corporation":false,"usgs":true,"family":"Wangsness","given":"David","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":669680,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70182138,"text":"70182138 - 2002 - Assessing five national priorities in water resources","interactions":[],"lastModifiedDate":"2017-02-16T14:54:03","indexId":"70182138","displayToPublicDate":"2002-01-09T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3720,"text":"Water Resources Impact","printIssn":"1522-3175","active":true,"publicationSubtype":{"id":10}},"title":"Assessing five national priorities in water resources","docAbstract":"<p><span class=\"EXLDetailsDisplayVal\">In 2001, the <span class=\"searchword\">National</span> <span class=\"searchword\">Water</span>-<span class=\"searchword\">Quality</span>Assessment (NAWQA) Program of the U.S. Geological Survey (USGS) began its second decade of studies. A total of 42 study units (major river basins and aquifers across the nation) will be reassessed in three groups of 14 on a rotating schedule. Each group of study units will be studied intensively for three years, followed by six years of low-intensity assessment. One of the primary goals in the second decade is to improve understanding of the key processes that control <span class=\"searchword\">water</span>-<span class=\"searchword\">quality</span> conditions in order to establish the links among the sources of contaminants, their transport through the hydrologic system, and the effects of contaminants and physical alterations on stream biota and ecosystems and on the <span class=\"searchword\">quality</span> of drinking <span class=\"searchword\">water</span>. An improved understanding of these links will provide the basis for predicting <span class=\"searchword\">water</span>-<span class=\"searchword\">quality</span> conditions in unmonitored areas and for predicting the likely effects of contemplated changes in land- and <span class=\"searchword\">water</span>-management practices.</span> </p>","language":"English","publisher":"ProQuest","issn":"1522-3175 ","usgsCitation":"Wilber, W., and Couch, C.A., 2002, Assessing five national priorities in water resources: Water Resources Impact, v. 4, no. 4, p. 17-21.","productDescription":"5 p.","startPage":"17","endPage":"21","costCenters":[],"links":[{"id":335775,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"4","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58a6c83de4b025c4642862ea","contributors":{"authors":[{"text":"Wilber, William","contributorId":48439,"corporation":false,"usgs":true,"family":"Wilber","given":"William","affiliations":[],"preferred":false,"id":669767,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Couch, C. A.","contributorId":36972,"corporation":false,"usgs":true,"family":"Couch","given":"C.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":669768,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70207733,"text":"70207733 - 2002 - Early Holocene change in atmospheric circulation in the Northern Great Plains: An upstream view of the 8.2 ka cold event","interactions":[],"lastModifiedDate":"2020-06-17T15:00:52.063846","indexId":"70207733","displayToPublicDate":"2002-01-08T13:18:23","publicationYear":"2002","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3219,"text":"Quaternary Science Reviews","active":true,"publicationSubtype":{"id":10}},"title":"Early Holocene change in atmospheric circulation in the Northern Great Plains: An upstream view of the 8.2 ka cold event","docAbstract":"<p><span>Elk Lake, in northwestern Minnesota, contains numerous proxy records of climatic and environmental change contained in varved sediments with annual resolution for the last 10,000 years. These proxies show that about 8200 calendar years ago (8.2</span><span>&nbsp;</span><span>cal.</span><span>&nbsp;</span><span>ka; 7300 radiocarbon years) Elk Lake went from a well-stratified lake that was wind-protected in a boreal forest to a well-mixed lake in open prairie savanna receiving northwesterly wind-blown dust, probably from the dry floor of Lake Agassiz. This change in climate marks the initiation of the widely recognized mid-Holocene “altithermal” in central North America. The coincidence of this change with the so-called 8.2</span><span>&nbsp;</span><span>cal.</span><span>&nbsp;</span><span>ka cold event, recognized in ice-core and other records from the circum-North Atlantic, and thought by some to be caused by catastrophic discharge of freshwater from proglacial lakes Agassiz and Ojibway, suggests that the two “events” might be related. Our interpretation of the Elk Lake proxy records, and of other records from less accurately dated sites, suggests that change in climate over North America was the result of a fundamental change in atmospheric circulation in response to marked changes in the relative proportions of land, water, and, especially, glacial ice in North America during the early Holocene. This change in circulation probably post-dates the final drainage of proglacial lakes along the southern margin of the Laurentide ice sheet, and may have produced a minor perturbation in climate over Greenland that resulted in a brief cold pulse detected in ice cores.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/S0277-3791(02)00002-1","usgsCitation":"Dean, W.E., Forester, R.M., and Bradbury, J.P., 2002, Early Holocene change in atmospheric circulation in the Northern Great Plains: An upstream view of the 8.2 ka cold event: Quaternary Science Reviews, v. 21, no. 16-17, p. 1763-1775, https://doi.org/10.1016/S0277-3791(02)00002-1.","productDescription":"13 p.","startPage":"1763","endPage":"1775","costCenters":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"links":[{"id":371075,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Minnesota","otherGeospatial":"Elk Lake, Itasca State Park","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -95.24099349975586,\n              47.17652864940093\n            ],\n            [\n              -95.2016830444336,\n              47.17652864940093\n            ],\n            [\n              -95.2016830444336,\n              47.20802436605374\n            ],\n            [\n              -95.24099349975586,\n              47.20802436605374\n            ],\n            [\n              -95.24099349975586,\n              47.17652864940093\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"21","issue":"16-17","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Dean, Walter E. dean@usgs.gov","contributorId":1801,"corporation":false,"usgs":true,"family":"Dean","given":"Walter","email":"dean@usgs.gov","middleInitial":"E.","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":779118,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Forester, Richard M.","contributorId":71961,"corporation":false,"usgs":true,"family":"Forester","given":"Richard","email":"","middleInitial":"M.","affiliations":[{"id":271,"text":"Federal Center","active":false,"usgs":true}],"preferred":false,"id":779119,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bradbury, J. Platt","contributorId":91106,"corporation":false,"usgs":true,"family":"Bradbury","given":"J.","email":"","middleInitial":"Platt","affiliations":[],"preferred":false,"id":779120,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70207732,"text":"70207732 - 2002 - Progress in global lake drilling holds potential for global change research","interactions":[],"lastModifiedDate":"2020-06-17T14:56:04.810382","indexId":"70207732","displayToPublicDate":"2002-01-08T13:04:09","publicationYear":"2002","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1578,"text":"Eos, Transactions, American Geophysical Union","onlineIssn":"2324-9250","printIssn":"0096-394","active":true,"publicationSubtype":{"id":10}},"title":"Progress in global lake drilling holds potential for global change research","docAbstract":"<p><span>During the past decade, numerous international investigations of past global change have focused on particular time intervals, or “Time Streams,” suggested by the Past Global Changes (PAGES) Project of the International Geosphere‐Biosphere Programme (IGBP). Time Stream 1 encompasses the last 2000 years, and Time Stream 2 encompasses at least the last 250,000 years. Geographically many of these studies have been grouped into north‐south transects of continental global change records known as the Pole‐Equator‐Pole (PEP) transects [</span><i>Bradley et al.</i><span>, 1995]. These continental transects have been complemented by the study of marine records included in the International Marine Global Change Study (IMAGES) transects and high‐latitude ice core records such as those from the U.S. Greenland Ice Sheet Project 2 (GISP2) and the European Greenland Ice‐core Project (GRIP).</span></p>","language":"English","publisher":"American Geophysical Union","doi":"10.1029/2002EO000047","usgsCitation":"Dean, W.E., Rosenbaum, J.G., Haskell, B.J., Kelts, K., Schurrenberger, D., Valero Garces, B.L., Cohen, A.S., Davis, O., Dinter, D., and Dennis Nielson, 2002, Progress in global lake drilling holds potential for global change research: Eos, Transactions, American Geophysical Union, v. 83, no. 9, p. 85-91, https://doi.org/10.1029/2002EO000047.","productDescription":"6 p.","startPage":"85","endPage":"91","costCenters":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"links":[{"id":371065,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Idaho, Utah","otherGeospatial":"Bear River drainage system","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -113.35693359375,\n              42.09822241118974\n            ],\n            [\n              -113.31298828125,\n              40.3130432088809\n            ],\n            [\n              -111.62109375,\n              40.51379915504413\n            ],\n            [\n              -111.77490234375,\n              41.705728515237524\n            ],\n            [\n              -111.11572265625,\n              41.80407814427234\n            ],\n            [\n              -111.20361328125,\n              42.48830197960227\n            ],\n            [\n              -113.37890625,\n              42.56926437219384\n            ],\n            [\n              -113.35693359375,\n              42.09822241118974\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"83","issue":"9","noUsgsAuthors":false,"publicationDate":"2011-06-03","publicationStatus":"PW","contributors":{"authors":[{"text":"Dean, Walter E. dean@usgs.gov","contributorId":1801,"corporation":false,"usgs":true,"family":"Dean","given":"Walter","email":"dean@usgs.gov","middleInitial":"E.","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":779108,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rosenbaum, Joseph G. jrosenbaum@usgs.gov","contributorId":1524,"corporation":false,"usgs":true,"family":"Rosenbaum","given":"Joseph","email":"jrosenbaum@usgs.gov","middleInitial":"G.","affiliations":[],"preferred":true,"id":779109,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Haskell, Brian J.","contributorId":11690,"corporation":false,"usgs":true,"family":"Haskell","given":"Brian","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":779110,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kelts, K.","contributorId":38294,"corporation":false,"usgs":true,"family":"Kelts","given":"K.","email":"","affiliations":[],"preferred":false,"id":779111,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Schurrenberger, Douglas","contributorId":221608,"corporation":false,"usgs":false,"family":"Schurrenberger","given":"Douglas","email":"","affiliations":[],"preferred":false,"id":779112,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Valero Garces, Blas L.","contributorId":140656,"corporation":false,"usgs":false,"family":"Valero Garces","given":"Blas","email":"","middleInitial":"L.","affiliations":[{"id":13545,"text":"Instituto Pirenaico de Ecología-CSIC","active":true,"usgs":false}],"preferred":false,"id":779113,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Cohen, Andrew S.","contributorId":100989,"corporation":false,"usgs":true,"family":"Cohen","given":"Andrew","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":779114,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Davis, Owen","contributorId":221609,"corporation":false,"usgs":false,"family":"Davis","given":"Owen","email":"","affiliations":[],"preferred":false,"id":779115,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Dinter, D.","contributorId":64154,"corporation":false,"usgs":true,"family":"Dinter","given":"D.","affiliations":[],"preferred":false,"id":779116,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Dennis Nielson","contributorId":193563,"corporation":false,"usgs":false,"family":"Dennis Nielson","affiliations":[],"preferred":false,"id":779117,"contributorType":{"id":1,"text":"Authors"},"rank":10}]}}
,{"id":70207685,"text":"70207685 - 2002 - Current controlled deposition on the Wilkes Land continental rise, Antarctica","interactions":[],"lastModifiedDate":"2020-01-06T12:26:57","indexId":"70207685","displayToPublicDate":"2002-01-06T12:10:17","publicationYear":"2002","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1790,"text":"Geological Society, London, Memoirs","active":true,"publicationSubtype":{"id":10}},"title":"Current controlled deposition on the Wilkes Land continental rise, Antarctica","docAbstract":"<p><span>Turbidite, contourite and hemipelagic deposition are the main components of Wilkes Land continental rise sedimentation above the regional unconformity WL2. On the continental shelf, unconformity WL2 marks the start of shelf progradation, which is interpreted to correspond with the onset of glacial conditions in this segment of the east Antarctic margin. Unusually large (i.e. up to 900 m relief and 18 km between levee crests) channel-levee deposits, and high relief (up to 490 m) mounded contourite-style deposits develop above unconformity WLlb. Unconformity WLlb overlies unconformity WL2 and is interpreted to have formed under a fully continental glacial regime where ice streams reached the palaeo-continental shelf edge. Based on an analysis of multichannel seismic profiles and sediment cores, we differentiate three phases in the development of the sedimentary unit between WLlb and the present seafloor. From older to younger these are: Phase 1, dominated by turbidite deposition; Phase 2, dominated by turbidite and contourite deposition with significant mound building; and Phase 3, dominated by turbidite and contourite deposition without active mound building. We hypothesize that building of the mounds during Phase 2 corresponded with times of expansion of the Antarctic ice-sheet when vast amounts of sediment were eroded from the continent and continental shelf. The large amount of unsorted glacial sediment supplied to the outer shelf apparently travelled down the slope canyons and rise channels as turbidity current flows to feed the usually large continental rise channel-levee complexes. The suspended fines of the turbidity flows were then entrained in a palaeo-nepheloid layer and carried by the westward flowing palaeo-contour currents until their deposition in the mounds. During Phase 3, sediment supply to the continental rise, although important in volume and capable of turbidite and contour-current deposition, was insufficient to support further building of the mounds. We believe the decrease in sediment supply to the continental rise from Phase 2 to Phase 3 could be the result of a change on sediment depocentres, with most of the sediment supplied to the margin during Phase 3 being trapped on the continental shelf. We believe that ultimately these changes are related to the stage of glacial evolution of the continent.</span></p>","language":"English","publisher":"The Geological Society of London","doi":"10.1144/GSL.MEM.2002.022.01.26","usgsCitation":"Escutia, C., Nelson, C., Acton, G., Eittreim, S., Cooper, A.K., Warnke, D., and Jaramillo, J., 2002, Current controlled deposition on the Wilkes Land continental rise, Antarctica: Geological Society, London, Memoirs, v. 22, p. 373-384, https://doi.org/10.1144/GSL.MEM.2002.022.01.26.","productDescription":"12 p.","startPage":"373","endPage":"384","costCenters":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":371009,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"otherGeospatial":"Wilkes Land 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,{"id":70181828,"text":"70181828 - 2002 - Optimal measurement of an ASR program to control land subsidence in Lancaster, California","interactions":[],"lastModifiedDate":"2018-06-01T13:43:52","indexId":"70181828","displayToPublicDate":"2002-01-04T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Optimal measurement of an ASR program to control land subsidence in Lancaster, California","docAbstract":"<p>No abstract available.&nbsp;</p>","conferenceTitle":"4th international symposium on Artificial recharge of groundwater","language":"English","isbn":"90-5809-527-4 ","usgsCitation":"Phillips, S., Carlson, C.S., Metzger, L., Sneed, M., Galloway, D.L., Hudnut, K.W., Ikehara, M.E., and Dillon, P., 2002, Optimal measurement of an ASR program to control land subsidence in Lancaster, California, 4th international symposium on Artificial recharge of groundwater, v. 4, p. 361-366.","productDescription":"6 p.","startPage":"361","endPage":"366","costCenters":[],"links":[{"id":335386,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58a42538e4b0c825128ad451","contributors":{"authors":[{"text":"Phillips, S.P.","contributorId":38172,"corporation":false,"usgs":true,"family":"Phillips","given":"S.P.","email":"","affiliations":[],"preferred":false,"id":668742,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Carlson, Carl S. 0000-0001-7142-3519 cscarlso@usgs.gov","orcid":"https://orcid.org/0000-0001-7142-3519","contributorId":1694,"corporation":false,"usgs":true,"family":"Carlson","given":"Carl","email":"cscarlso@usgs.gov","middleInitial":"S.","affiliations":[{"id":376,"text":"Massachusetts Water Science Center","active":true,"usgs":true},{"id":466,"text":"New England Water Science Center","active":true,"usgs":true}],"preferred":true,"id":668743,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Metzger, L.F.","contributorId":47829,"corporation":false,"usgs":true,"family":"Metzger","given":"L.F.","email":"","affiliations":[],"preferred":false,"id":668744,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Sneed, Michelle 0000-0002-8180-382X micsneed@usgs.gov","orcid":"https://orcid.org/0000-0002-8180-382X","contributorId":155,"corporation":false,"usgs":true,"family":"Sneed","given":"Michelle","email":"micsneed@usgs.gov","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":668745,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Galloway, Devin L. 0000-0003-0904-5355 dlgallow@usgs.gov","orcid":"https://orcid.org/0000-0003-0904-5355","contributorId":679,"corporation":false,"usgs":true,"family":"Galloway","given":"Devin","email":"dlgallow@usgs.gov","middleInitial":"L.","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":5058,"text":"Office of the Chief Scientist for Water","active":true,"usgs":true},{"id":509,"text":"Office of the Associate Director for Water","active":true,"usgs":true},{"id":35860,"text":"Ohio-Kentucky-Indiana Water Science Center","active":true,"usgs":true},{"id":5078,"text":"Southwest Regional Director's Office","active":true,"usgs":true}],"preferred":true,"id":668746,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Hudnut, Kenneth W. 0000-0002-3168-4797 hudnut@usgs.gov","orcid":"https://orcid.org/0000-0002-3168-4797","contributorId":2550,"corporation":false,"usgs":true,"family":"Hudnut","given":"Kenneth","email":"hudnut@usgs.gov","middleInitial":"W.","affiliations":[{"id":508,"text":"Office of the AD Hazards","active":true,"usgs":true},{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":668747,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Ikehara, M. E.","contributorId":40977,"corporation":false,"usgs":true,"family":"Ikehara","given":"M.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":668748,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Dillon, P.J.","contributorId":90899,"corporation":false,"usgs":true,"family":"Dillon","given":"P.J.","email":"","affiliations":[],"preferred":false,"id":668749,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":70207674,"text":"70207674 - 2002 - Correlation of late Cenozoic basaltic lava flows in the Carbondale and Eagle collapse centers in west-central Colorado based on geochemical, isotopic, age, and petrographic data","interactions":[],"lastModifiedDate":"2020-06-04T15:20:54.066867","indexId":"70207674","displayToPublicDate":"2002-01-03T11:46:20","publicationYear":"2002","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":"Correlation of late Cenozoic basaltic lava flows in the Carbondale and Eagle collapse centers in west-central Colorado based on geochemical, isotopic, age, and petrographic data","docAbstract":"<p>Major-, minor-, and trace-element abundance data on 220, late Cenozoic, basaltic rocks in and around the Carbondale and Eagle collapse centers in west-central Colorado are combined with isotopic, age, and petrographic data to correlate lava flows and establish the timing and minimum areal extent of collapse events associated with removal of Pennsylvanian evaporite. On the basis of these data, 46 distinct compositional groups of volcanic rocks were identified. The rocks within each group, which are represented by at least two samples, have compositions and ages that are indistinguishable from each other and are either (1) undifferentiated samples from the same eruption and possibly from outcrops of the same flow, (2) differentiated from the same magma batch erupted at different times or (3) related to each other by very small differences in the degree of partial melting. The areal extent of chemically correlated and dated volcanic flows in the region was established and these results were used to recognize and understand many of the collapse events as described in companion papers in this volume. </p><p>Compositional data are also used to infer the petrogenetic processes that generated the parental magmas. Subtle but significant differences among rocks that are broadly similar in geochemical and isotopic composition and were erupted over a small time interval (&lt;0.5 m.y.) suggests that the mantle source region of these magmas is quite heterogeneous. Over the past 11 m.y., the lavas became less mafic and more enriched in incompatible trace elements. This heterogeneity is attributed to variable contributions of subducted material in the lithosphere during the melting processes. To account for its isotopic features, the source material must be at least mid-Proterozoic in age. A melt contribution from underlying asthenospheric mantle can not be ruled out but none of the volcanic rocks have clear characteristics of oceanic-island basalts or mid-oceanic-ridge basalts. The trace-element compositions of rocks that were sampled from multiple stacked flows are indistinguishable from one another.This suggests that lower and/or upper crustal assimilation had a minor effect on their overall chemistry. However, Pb isotopic data suggest that crustal contamination of at least some samples did occur. </p>","language":"English","publisher":"GSA","doi":"10.1130/0-8137-2366-3.167","usgsCitation":"Budahn, J.R., Unruh, D.M., Kunk, M.J., Byers, F.M., Kirkham, R., and Streufert, R.K., 2002, Correlation of late Cenozoic basaltic lava flows in the Carbondale and Eagle collapse centers in west-central Colorado based on geochemical, isotopic, age, and petrographic data: GSA Special Papers, v. 366, p. 167-196, https://doi.org/10.1130/0-8137-2366-3.167.","productDescription":"30 p.","startPage":"167","endPage":"196","costCenters":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true},{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true},{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true}],"links":[{"id":370974,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Colorado","otherGeospatial":"Carbondale and Eagle collapse centers","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -107.55203247070312,\n              39.11301365149975\n            ],\n            [\n              -106.72943115234375,\n              39.11301365149975\n            ],\n            [\n              -106.72943115234375,\n              39.75365697136308\n            ],\n            [\n              -107.55203247070312,\n              39.75365697136308\n            ],\n            [\n              -107.55203247070312,\n              39.11301365149975\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"366","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Budahn, James R. 0000-0001-9794-8882 jbudahn@usgs.gov","orcid":"https://orcid.org/0000-0001-9794-8882","contributorId":1175,"corporation":false,"usgs":true,"family":"Budahn","given":"James","email":"jbudahn@usgs.gov","middleInitial":"R.","affiliations":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":778839,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Unruh, D. M.","contributorId":117170,"corporation":false,"usgs":true,"family":"Unruh","given":"D.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":778840,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kunk, Michael J. 0000-0003-4424-7825 mkunk@usgs.gov","orcid":"https://orcid.org/0000-0003-4424-7825","contributorId":200968,"corporation":false,"usgs":true,"family":"Kunk","given":"Michael","email":"mkunk@usgs.gov","middleInitial":"J.","affiliations":[{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true},{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"preferred":true,"id":778841,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Byers, Frank M. Jr.","contributorId":35397,"corporation":false,"usgs":true,"family":"Byers","given":"Frank","suffix":"Jr.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":778842,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Kirkham, R. M.","contributorId":16915,"corporation":false,"usgs":false,"family":"Kirkham","given":"R. M.","affiliations":[],"preferred":false,"id":778843,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Streufert, R. K.","contributorId":81516,"corporation":false,"usgs":false,"family":"Streufert","given":"R.","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":778844,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
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