{"pageNumber":"270","pageRowStart":"6725","pageSize":"25","recordCount":36989,"records":[{"id":31495,"text":"ofr01429 - 2001 - Environmental studies of the World Trade Center area after the September 11, 2001 attack","interactions":[],"lastModifiedDate":"2017-07-14T10:29:00","indexId":"ofr01429","displayToPublicDate":"2002-03-01T00:00:00","publicationYear":"2001","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":"2001-429","title":"Environmental studies of the World Trade Center area after the September 11, 2001 attack","docAbstract":"

This web site describes the results of an interdisciplinary environmental characterization of the World Trade Center (WTC) area after September 11, 2001.

Information presented in this site was first made available to the World Trade Center emergency response teams on September 18, 2001 (Thermal hot spot information), and September 27, 2001 (maps and compositional results).

The Airborne Visible / Infrared Imaging Spectrometer (AVIRIS), a hyperspectral remote sensing instrument, was flown by JPL/NASA over the World Trade Center (WTC) area on September 16, 18, 22, and 23, 2001 ( Link to the AVIRIS JPL data facility). A 2-person USGS crew collected samples of dusts and airfall debris from more than 35 localities within a 1-km radius of the World trade Center site on the evenings of September 17 and 18, 2001. Two samples were collected of indoor locations that were presumably not affected by rainfall (there was a rainstorm on September 14). Two samples of material coating a steel beam in the WTC debris were also collected. The USGS ground crew also carried out on-the-ground reflectance spectroscopy measurements during daylight hours to field calibrate AVIRIS remote sensing data. Radiance calibration and rectification of the AVIRIS data were done at JPL/NASA. Surface reflectance calibration, spectral mapping, and interpretation were done at the USGS Imaging Spectroscopy Lab in Denver. The dust/debris and beam-insulation samples were analyzed for a variety of mineralogical and chemical parameters using Reflectance Spectroscopy (RS), Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD), chemical analysis, and chemical leach test techniques in U.S. Geological Survey laboratories in Denver, Colorado.

","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr01429","usgsCitation":"Clark, R.N., Green, R., Swayze, G.A., Meeker, G., Sutley, S., Hoefen, T.M., Livo, K., Plumlee, G., Pavri, B., Sarture, C., Wilson, S., Hageman, P., Lamothe, P., Vance, J.S., Boardman, J., Brownfield, I., Gent, C., Morath, L.C., Taggart, J., Theodorakos, P.M., and Adams, M., 2001, Environmental studies of the World Trade Center area after the September 11, 2001 attack (Version 1.1): U.S. Geological Survey Open-File Report 2001-429, HTML Document, https://doi.org/10.3133/ofr01429.","productDescription":"HTML Document","costCenters":[],"links":[{"id":161317,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":2667,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2001/ofr-01-0429/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"New York","city":"New York City","otherGeospatial":"World Trade Center complex","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -74.02081489562988,\n 40.70543274083784\n ],\n [\n -74.00596618652344,\n 40.70543274083784\n ],\n [\n -74.00596618652344,\n 40.71688335199443\n ],\n [\n -74.02081489562988,\n 40.71688335199443\n ],\n [\n -74.02081489562988,\n 40.70543274083784\n ]\n ]\n ]\n }\n }\n ]\n}","edition":"Version 1.1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a13e4b07f02db602238","contributors":{"authors":[{"text":"Clark, Roger N. 0000-0002-7021-1220 rclark@usgs.gov","orcid":"https://orcid.org/0000-0002-7021-1220","contributorId":515,"corporation":false,"usgs":true,"family":"Clark","given":"Roger","email":"rclark@usgs.gov","middleInitial":"N.","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":206176,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Green, Robert O.","contributorId":56271,"corporation":false,"usgs":true,"family":"Green","given":"Robert O.","affiliations":[],"preferred":false,"id":206189,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Swayze, Gregg A. 0000-0002-1814-7823 gswayze@usgs.gov","orcid":"https://orcid.org/0000-0002-1814-7823","contributorId":518,"corporation":false,"usgs":true,"family":"Swayze","given":"Gregg","email":"gswayze@usgs.gov","middleInitial":"A.","affiliations":[{"id":309,"text":"Geology and Geophysics Science Center","active":true,"usgs":true},{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":206177,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Meeker, Greg","contributorId":20802,"corporation":false,"usgs":true,"family":"Meeker","given":"Greg","affiliations":[],"preferred":false,"id":206185,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Sutley, Steve","contributorId":11059,"corporation":false,"usgs":true,"family":"Sutley","given":"Steve","affiliations":[],"preferred":false,"id":206181,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Hoefen, Todd M. 0000-0002-3083-5987 thoefen@usgs.gov","orcid":"https://orcid.org/0000-0002-3083-5987","contributorId":403,"corporation":false,"usgs":true,"family":"Hoefen","given":"Todd","email":"thoefen@usgs.gov","middleInitial":"M.","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true},{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":206175,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Livo, K. 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We collected 2230 measurements, an additional 344 were digitized from the map of Eberlein and others (1983), and an additional 650 come from the map of Herreid and others (1978). These data are listed in Excel spreadsheet, tab-delimited, and PDF formats. 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We collected 1966 measurements, and an additional 2237 unpublished measurements were compiled from field notebooks a from a field mapping effort in the late 1970’s and early 1980’s. These data are listed in spreadsheet and derivative formats. 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Based on reconnaissance-level surveys, we recognized three stratigraphic units and several intervening unconformities. Unit A, which exhibits hyperbolic reflections and always occurs at the base of the section, is interpreted as bedrock and/or talus. Unit B is a commonly observed sand deposit that overlies unit A and is characterized by reflections that gently dip down toward the river axis. Unit C is a sand deposit up to 2 m thick that always occurs at the top of the section and may represent a flood deposit from 1983. This study demonstrates the utility of GPR for non-destructive investigation of sand-bar thickness and the stratigraphic record of flood events in the Grand Canyon.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr01425","usgsCitation":"Barnhardt, W., Kayen, R., Rubin, D., and Minasian, D.L., 2001, The internal structure of sand bars on the Colorado River, Grand Canyon, as determined by ground-penetrating radar: U.S. Geological Survey Open-File Report 2001-425, HTML Document, https://doi.org/10.3133/ofr01425.","productDescription":"HTML Document","costCenters":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":161290,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr01425.GIF"},{"id":415261,"rank":4,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_44861.htm","linkFileType":{"id":5,"text":"html"}},{"id":282902,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2001/0425/intro.html"},{"id":2664,"rank":3,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2001/0425/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Arizona","otherGeospatial":"Colorado River, Grand Canyon","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -111.46,\n 36.925\n ],\n [\n -112.628,\n 36.925\n ],\n [\n -112.628,\n 36.028\n ],\n [\n -111.46,\n 36.028\n ],\n [\n -111.46,\n 36.925\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a85e4b07f02db64d3f7","contributors":{"authors":[{"text":"Barnhardt, Walter A. wbarnhardt@usgs.gov","contributorId":2474,"corporation":false,"usgs":true,"family":"Barnhardt","given":"Walter A.","email":"wbarnhardt@usgs.gov","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":206166,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kayen, Robert","contributorId":12030,"corporation":false,"usgs":true,"family":"Kayen","given":"Robert","affiliations":[],"preferred":false,"id":206168,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Rubin, David","contributorId":61470,"corporation":false,"usgs":true,"family":"Rubin","given":"David","affiliations":[],"preferred":false,"id":206169,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Minasian, Diane L. dminasian@usgs.gov","contributorId":3232,"corporation":false,"usgs":true,"family":"Minasian","given":"Diane","email":"dminasian@usgs.gov","middleInitial":"L.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":206167,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":31490,"text":"ofr01423 - 2001 - Principal facts for gravity data collected in South Dakota: a web site for distribution of data","interactions":[],"lastModifiedDate":"2012-02-02T00:09:06","indexId":"ofr01423","displayToPublicDate":"2002-03-01T00:00:00","publicationYear":"2001","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":"2001-423","title":"Principal facts for gravity data collected in South Dakota: a web site for distribution of data","docAbstract":"Principal facts for 12266 new gravity stations and 2880 stations previously released in paper form (Klasner and Kucks, 1988) for the state of South Dakota are presented. These data were contracted to fill a gap in existing data coverage for the state. Observed and Bouguer anomaly data for this regional compilation are available here in digital form.","language":"ENGLISH","doi":"10.3133/ofr01423","usgsCitation":"Kucks, R.P., and Zawislak, R.L., 2001, Principal facts for gravity data collected in South Dakota: a web site for distribution of data (Version 1.0): U.S. Geological Survey Open-File Report 2001-423, digital data files and accompanying text, https://doi.org/10.3133/ofr01423.","productDescription":"digital data files and accompanying text","costCenters":[],"links":[{"id":160754,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":2662,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2001/ofr-01-0423/","linkFileType":{"id":5,"text":"html"}}],"edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a90e4b07f02db6557dd","contributors":{"authors":[{"text":"Kucks, Robert P.","contributorId":11648,"corporation":false,"usgs":true,"family":"Kucks","given":"Robert","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":206163,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Zawislak, Ronald L.","contributorId":100899,"corporation":false,"usgs":true,"family":"Zawislak","given":"Ronald","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":206164,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":31488,"text":"ofr01418 - 2001 - Land use change and effects on water quality and ecosystem health in the Lake Tahoe basin, Nevada and California","interactions":[],"lastModifiedDate":"2022-10-14T19:04:26.866881","indexId":"ofr01418","displayToPublicDate":"2002-03-01T00:00:00","publicationYear":"2001","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":"2001-418","title":"Land use change and effects on water quality and ecosystem health in the Lake Tahoe basin, Nevada and California","docAbstract":"Human activity in the Lake Tahoe Basin has increased substantially in the past four decades, causing significant impacts on the quality and clarity of the lake's famous deep, clear water. Protection of Lake Tahoe and the surrounding environment has become an important activity in recent years. A variety of agencies, including the Tahoe Regional Planning Agency, Tahoe Research Group of the University of California at Davis, Desert Research Institute of the University and Community College System of Nevada, U.S. Geological Survey (USGS), and a host of State (both Nevada and California) and local agencies have been monitoring and conducting research in the Basin in order to understand how the lake functions and to what extent humans have affected its landscape and ecosystem processes. In spite of all of these activities, there remains a lack of comprehensive land use change data and analysis for the Basin. \r\n\r\nA project is underway that unites the land cover mapping expertise of the USGS National Mapping Discipline with the hydrologic expertise of the Water Resources Discipline to assess the impacts of urban growth and land use change in the Lake Tahoe Basin. Three activities are planned over the next 3 years: (1) mapping the current and historic state of the land surface, (2) conducting analysis to document patterns, rates, and trends in urbanization, land use change, and ecosystem health, and (3) assessing the causes and consequences of land use change with regard to water quality and ecosystem health. We hypothesize that changes in the extent of urban growth and the corresponding increases in impervious surfaces and decreases in natural vegetation have resulted in severe impacts on ecosystem health and integrity, riparian zones and water quality over time. We are acting on multiple fronts to test this hypothesis through the quantification of landscape disturbances and impacts.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr01418","usgsCitation":"Forney, W., Richards, L., Adams, K., Minor, T.B., Rowe, T.G., Smith, J.L., and Raumann, C.G., 2001, Land use change and effects on water quality and ecosystem health in the Lake Tahoe basin, Nevada and California: U.S. Geological Survey Open-File Report 2001-418, 29 p., https://doi.org/10.3133/ofr01418.","productDescription":"29 p.","costCenters":[],"links":[{"id":160752,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":408341,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_46655.htm","linkFileType":{"id":5,"text":"html"}},{"id":2660,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/openfile/of01-418/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"California, Nevada","otherGeospatial":"Lake Tahoe basin","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -120.2178955078125,\n 38.792626957868904\n ],\n [\n -119.89654541015624,\n 38.792626957868904\n ],\n [\n -119.89654541015624,\n 39.342794408952365\n ],\n [\n -120.2178955078125,\n 39.342794408952365\n ],\n [\n -120.2178955078125,\n 38.792626957868904\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a81e4b07f02db64a187","contributors":{"authors":[{"text":"Forney, William","contributorId":23509,"corporation":false,"usgs":true,"family":"Forney","given":"William","affiliations":[],"preferred":false,"id":206156,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Richards, Lora","contributorId":42262,"corporation":false,"usgs":true,"family":"Richards","given":"Lora","email":"","affiliations":[],"preferred":false,"id":206158,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Adams, Kenneth D.","contributorId":75586,"corporation":false,"usgs":true,"family":"Adams","given":"Kenneth D.","affiliations":[],"preferred":false,"id":206160,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Minor, Timothy B.","contributorId":32576,"corporation":false,"usgs":true,"family":"Minor","given":"Timothy","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":206157,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Rowe, Timothy G.","contributorId":8455,"corporation":false,"usgs":true,"family":"Rowe","given":"Timothy","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":206155,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"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":206154,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Raumann, Christian G.","contributorId":65893,"corporation":false,"usgs":true,"family":"Raumann","given":"Christian","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":206159,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":31483,"text":"ofr01411 - 2001 - Chemical composition of samples collected from waste rock dumps and other mining-related features at selected phosphate mines in southeastern Idaho, western Wyoming, and northern Utah","interactions":[],"lastModifiedDate":"2023-06-27T14:55:19.093513","indexId":"ofr01411","displayToPublicDate":"2002-03-01T00:00:00","publicationYear":"2001","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":"2001-411","title":"Chemical composition of samples collected from waste rock dumps and other mining-related features at selected phosphate mines in southeastern Idaho, western Wyoming, and northern Utah","docAbstract":"This report provides chemical analyses for 31 samples collected from various phosphate mine sites in southeastern Idaho (25), northern Utah (2), and western Wyoming (4). The sampling effort was undertaken as a reconnaissance and does not constitute a characterization of mine wastes. Twenty-five samples were collected from waste rock dumps, 2 from stockpiles, and 1 each from slag, tailings, mill shale, and an outcrop. All samples were analyzed for a suite of major, minor, and trace elements. Although the analytical data set for the 31 samples is too small for detailed statistical analysis, a summary of general observations is made.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr01411","usgsCitation":"Moyle, P.R., and Causey, J.D., 2001, Chemical composition of samples collected from waste rock dumps and other mining-related features at selected phosphate mines in southeastern Idaho, western Wyoming, and northern Utah: U.S. Geological Survey Open-File Report 2001-411, Report: 46 p.; Readme; Metadata; Appendix, https://doi.org/10.3133/ofr01411.","productDescription":"Report: 46 p.; Readme; Metadata; Appendix","numberOfPages":"46","additionalOnlineFiles":"Y","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":160736,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":282893,"rank":2,"type":{"id":3,"text":"Appendix"},"url":"https://pubs.usgs.gov/of/2001/0411/OF01-411.txt"},{"id":282892,"rank":3,"type":{"id":3,"text":"Appendix"},"url":"https://pubs.usgs.gov/of/2001/0411/OF01-411.xls"},{"id":282891,"rank":4,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2001/0411/pdf/OF01-411.pdf"},{"id":414384,"rank":8,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_49733.htm","linkFileType":{"id":5,"text":"html"}},{"id":282889,"rank":6,"type":{"id":20,"text":"Read Me"},"url":"https://pubs.usgs.gov/of/2001/0411/readme.txt"},{"id":282890,"rank":5,"type":{"id":16,"text":"Metadata"},"url":"https://pubs.usgs.gov/of/2001/0411/meta.txt"},{"id":2655,"rank":7,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2001/0411/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Idaho, Utah, Wyoming","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -111.5,\n 40.1\n ],\n [\n -111.5,\n 42.8333\n ],\n [\n -110.5667,\n 42.8333\n ],\n [\n -110.5667,\n 40.1\n ],\n [\n -111.5,\n 40.1\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49e0e4b07f02db5e4003","contributors":{"authors":[{"text":"Moyle, Phillip R.","contributorId":100898,"corporation":false,"usgs":true,"family":"Moyle","given":"Phillip","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":206139,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Causey, J. Douglas","contributorId":41398,"corporation":false,"usgs":true,"family":"Causey","given":"J.","email":"","middleInitial":"Douglas","affiliations":[],"preferred":false,"id":206138,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":31481,"text":"ofr01407 - 2001 - High-resolution seismic reflection/refraction images near the outer margin of the Chesapeake Bay impact crater, York-James Peninsula, southeastern Virginia","interactions":[],"lastModifiedDate":"2014-02-27T10:11:17","indexId":"ofr01407","displayToPublicDate":"2002-03-01T00:00:00","publicationYear":"2001","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":"2001-407","title":"High-resolution seismic reflection/refraction images near the outer margin of the Chesapeake Bay impact crater, York-James Peninsula, southeastern Virginia","docAbstract":"

Powars and Bruce (1999) showed that the Chesapeake Bay region of southeastern Virginia was the site of an asteroid or comet impact during the late Eocene, approximately 35 million years ago (Fig. 1). Initial borehole and marine seismic-reflection data revealed a 90-km-diameter impact structure, referred to as the Chesapeake Bay Impact Crater (CBIC), that lies buried beneath the southern Chesapeake Bay and surrounding Virginia Coastal Plain (Powars and Bruce, Figs. 1b).

\n
\n

Stratigraphic correlations among a series of boreholes suggest that the impact disrupted basement rock and the overlying Cretaceous through middle Eocene deltaic and marine sediments. The CBIC truncates important regional sedimentary aquifer systems and possibly caused differential flushing of connate seawater. Therefore, the CBIC affects the present-day ground-water quantity and quality in the rapidly growing Hampton Roads region of southeastern Virginia. Impact-generated faults in the basement rock may be the sources of small-to-moderate earthquakes that have been occurred around the perimeter of the impact structure over the past few hundred years (Johnson et al., 1998).

\n
\n

Powars and Bruce (1999) suggest that 150 m to 490 m of relatively undisturbed, post-impact Coastal-Plain sediments overlie the impact-disrupted sediments and basement rocks west of Chesapeake Bay. Their interpretation of marine seismic data, released from Texaco and Exxon, revealed a central 38-km-wide, 1.6-km-deep disrupted zone in the basement rocks (inner basin), which is surrounded by a 21- to 31-km-wide, 1- km-deep annular trough. Steep rim escarpments surround these features, which they mapped regionally as the outer and inner margins (rims) of the CBIC (Fig. 1b). The outer margin is a slumped terrace zone that has a 120- to 305-m-high gullied escarpment and varies in width from 0.8 to 3.2 km. However, the geographic bounds of the CBIC, its effects on the regional aquifer systems, and the distribution of impact generated faults and fractures in basement are not well determined. To better determine some of the unknowns associated with the CBIC, we conducted a 350-m-long, high-resolution seismic reflection and refraction survey, referred to here as the CBIC-1 seismic survey, on the York-James Peninsula in June 1999. In particular, we attempted to: better define the outer margin of the CBIC, understand lateral variations in the stratigraphic sequence, help assess potential hazards associated with regional seismicity, and determine acquisition parameters needed for shallow-depth seismic imaging in the Chesapeake Bay area.

","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr01407","usgsCitation":"Catchings, R.D., Saulter, D., Powars, D., Goldman, M.R., Dingler, J., Gohn, G.S., Schindler, J., and Johnson, G., 2001, High-resolution seismic reflection/refraction images near the outer margin of the Chesapeake Bay impact crater, York-James Peninsula, southeastern Virginia: U.S. Geological Survey Open-File Report 2001-407, 11 p., https://doi.org/10.3133/ofr01407.","productDescription":"11 p.","numberOfPages":"18","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"links":[{"id":2653,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2001/0407/","linkFileType":{"id":5,"text":"html"}},{"id":160859,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr01407.jpg"},{"id":282877,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2001/0407/pdf/of01-407.pdf"}],"country":"United States","state":"Virginia","otherGeospatial":"Chesapeake Bay;York-james Peninsula","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -77.5854,36.4964 ], [ -77.5854,37.9095 ], [ -75.163,37.9095 ], [ -75.163,36.4964 ], [ -77.5854,36.4964 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a58e4b07f02db62f460","contributors":{"authors":[{"text":"Catchings, R. D.","contributorId":98738,"corporation":false,"usgs":true,"family":"Catchings","given":"R.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":206112,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Saulter, D.E.","contributorId":23594,"corporation":false,"usgs":true,"family":"Saulter","given":"D.E.","email":"","affiliations":[],"preferred":false,"id":206108,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Powars, D.S.","contributorId":7303,"corporation":false,"usgs":true,"family":"Powars","given":"D.S.","affiliations":[],"preferred":false,"id":206107,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Goldman, M. R.","contributorId":106934,"corporation":false,"usgs":true,"family":"Goldman","given":"M.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":206114,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Dingler, J.A.","contributorId":30664,"corporation":false,"usgs":true,"family":"Dingler","given":"J.A.","email":"","affiliations":[],"preferred":false,"id":206110,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Gohn, G. 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2001 - Altitude and configuration of the potentiometric surface in lower Elk Creek watershed, Chester County, Pennsylvania, March through September 2000","interactions":[],"lastModifiedDate":"2017-06-21T10:24:13","indexId":"ofr01329","displayToPublicDate":"2002-03-01T00:00:00","publicationYear":"2001","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":"2001-329","title":"Altitude and configuration of the potentiometric surface in lower Elk Creek watershed, Chester County, Pennsylvania, March through September 2000","docAbstract":"

No abstract available

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Abdul","contributorId":55405,"corporation":false,"usgs":true,"family":"Mohammad","given":"Abdul","email":"","affiliations":[],"preferred":false,"id":206085,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":31471,"text":"ofr01291 - 2001 - Mineral potential modelling of gold and silver mineralization in the Nevada Great Basin — A GIS-based analysis using weights of evidence","interactions":[],"lastModifiedDate":"2022-07-04T17:32:45.717174","indexId":"ofr01291","displayToPublicDate":"2002-03-01T00:00:00","publicationYear":"2001","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":"2001-291","title":"Mineral potential modelling of gold and silver mineralization in the Nevada Great Basin — A GIS-based analysis using weights of evidence","docAbstract":"

The distribution of 2,690 gold-silver-bearing occurrences in the Nevada Great Basin was examined in terms of spatial association with various geological phenomena. Analysis of these relationships, using GIS and weights of evidence modelling techniques, has predicted areas of high mineral potential where little or no mining activity exists. Mineral potential maps for sedimentary (\"disseminated\") and volcanic (\"epithermal\") rock-hosted gold-silver mineralization revealed two distinct patterns that highlight two sets of crustal-scale geologic features that likely control the regional distribution of these deposit types.

The weights of evidence method is a probability-based technique for mapping mineral potential using the spatial distribution of known mineral occurrences. Mineral potential maps predicting the distribution of gold-silver-bearing occurrences were generated from structural, geochemical, geomagnetic, gravimetric, lithologic, and lithotectonic-related deposit-indicator factors. The maps successfully predicted nearly 70% of the total number of known occurrences, including ~83% of sedimentary and ~60% of volcanic rock-hosted types. Sedimentary and volcanic rockhosted mineral potential maps showed high spatial correlation (an area cross-tabulation agreement of 85% and 73%, respectively) with expert-delineated mineral permissive tracts. In blind tests, the sedimentary and volcanic rock-hosted mineral potential maps predicted 10 out of 12 and 5 out of 5 occurrences, respectively. The key mineral predictor factors, in order of importance, were determined to be: geology (including lithology, structure, and lithotectonic terrane), geochemistry (indication of alteration), and geophysics.

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No abstract available 

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Director, Pennsylvania Water Science Center
U.S. Geological Survey
215 Limekiln Road
New Cumberland, PA 17070

","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4adde4b07f02db686b0f","contributors":{"authors":[{"text":"Sloto, Ronald A. rasloto@usgs.gov","contributorId":424,"corporation":false,"usgs":true,"family":"Sloto","given":"Ronald","email":"rasloto@usgs.gov","middleInitial":"A.","affiliations":[{"id":532,"text":"Pennsylvania Water Science Center","active":true,"usgs":true}],"preferred":true,"id":206063,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Goode, D.J. 0000-0002-8527-2456","orcid":"https://orcid.org/0000-0002-8527-2456","contributorId":95512,"corporation":false,"usgs":true,"family":"Goode","given":"D.J.","affiliations":[],"preferred":false,"id":206065,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Way, John H.","contributorId":55048,"corporation":false,"usgs":true,"family":"Way","given":"John","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":206064,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":31464,"text":"ofr01126 - 2001 - A field conference on Impacts of coalbed methane development in the Powder River basin, Wyoming","interactions":[],"lastModifiedDate":"2017-02-21T13:23:27","indexId":"ofr01126","displayToPublicDate":"2002-03-01T00:00:00","publicationYear":"2001","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":"2001-126","title":"A field conference on Impacts of coalbed methane development in the Powder River basin, Wyoming","docAbstract":"

Coalbed methane (CBM) development from the Paleocene Fort Union Formation coal beds in the Powder River Basin in Wyoming has been rapidly expanding since 1993.  During the past ten years the number of CBM producing wells rose to about 4,000 wells as of October, 2000.  About 3,500 of these wells were completed since 1998.  About 13-14 percent of these CBM wells are on Federal lands while the majority are on State and private lands.  More than 50 percent of the lands in the Powder River Basin contains mineral rights owned by the Federal government.  CBM development on Federal lands creates impacts in the basin resulting from associated drilling, facilities, gas gathering systems (e.g., pipeline networks), access roads, and withdrawal and disposal of co-produced water from CBM wells.  The Bureau of Land Management (BLM) assesses the land-use management and impacts of drilling CBM wells on lands where mineral rights are controlled by the Federal government.

","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr01126","usgsCitation":"Flores, R.M., Stricker, G.D., Meyer, J.F., Doll, T.E., Norton, P.H., Livingston, R.J., Jennings, M.C., Kinney, S., Mitchell, H., and Dunn, S., 2001, A field conference on Impacts of coalbed methane development in the Powder River basin, Wyoming: U.S. Geological Survey Open-File Report 2001-126, 60 p., https://doi.org/10.3133/ofr01126.","productDescription":"60 p.","costCenters":[],"links":[{"id":160585,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":2621,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2001/ofr-01-126/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b25e4b07f02db6aecf6","contributors":{"authors":[{"text":"Flores, Romeo M. rflores@usgs.gov","contributorId":71984,"corporation":false,"usgs":true,"family":"Flores","given":"Romeo","email":"rflores@usgs.gov","middleInitial":"M.","affiliations":[{"id":165,"text":"Central Energy Resources Team","active":false,"usgs":true}],"preferred":false,"id":206060,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stricker, Gary D. gstricker@usgs.gov","contributorId":87163,"corporation":false,"usgs":true,"family":"Stricker","given":"Gary","email":"gstricker@usgs.gov","middleInitial":"D.","affiliations":[{"id":165,"text":"Central Energy Resources Team","active":false,"usgs":true}],"preferred":false,"id":206061,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Meyer, Joseph F.","contributorId":71600,"corporation":false,"usgs":true,"family":"Meyer","given":"Joseph","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":206059,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Doll, Thomas E.","contributorId":31442,"corporation":false,"usgs":true,"family":"Doll","given":"Thomas","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":206056,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Norton, Pierce H.","contributorId":67935,"corporation":false,"usgs":true,"family":"Norton","given":"Pierce","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":206058,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Livingston, Robert J.","contributorId":44589,"corporation":false,"usgs":true,"family":"Livingston","given":"Robert","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":206057,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Jennings, M. Craig","contributorId":106172,"corporation":false,"usgs":true,"family":"Jennings","given":"M.","email":"","middleInitial":"Craig","affiliations":[],"preferred":false,"id":206062,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Kinney, Scott 0000-0001-5008-5813","orcid":"https://orcid.org/0000-0001-5008-5813","contributorId":6904,"corporation":false,"usgs":true,"family":"Kinney","given":"Scott","affiliations":[],"preferred":false,"id":206053,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Mitchell, Heather","contributorId":10845,"corporation":false,"usgs":true,"family":"Mitchell","given":"Heather","affiliations":[],"preferred":false,"id":206054,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Dunn, Steve","contributorId":13284,"corporation":false,"usgs":true,"family":"Dunn","given":"Steve","email":"","affiliations":[],"preferred":false,"id":206055,"contributorType":{"id":1,"text":"Authors"},"rank":10}]}} ,{"id":31463,"text":"ofr01115 - 2001 - Potentiometric surface of the upper Floridan Aquifer, west-central Florida, September 2000","interactions":[],"lastModifiedDate":"2012-02-02T00:09:08","indexId":"ofr01115","displayToPublicDate":"2002-03-01T00:00:00","publicationYear":"2001","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":"2001-115","title":"Potentiometric surface of the upper Floridan Aquifer, west-central Florida, September 2000","language":"ENGLISH","doi":"10.3133/ofr01115","usgsCitation":"Duerr, A.D., 2001, Potentiometric surface of the upper Floridan Aquifer, west-central Florida, September 2000: U.S. Geological Survey Open-File Report 2001-115, 1 map ;72 x 69 cm., folded to 22 x 26 cm., https://doi.org/10.3133/ofr01115.","productDescription":"1 map ;72 x 69 cm., folded to 22 x 26 cm.","costCenters":[],"links":[{"id":160584,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":59787,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2001/0115/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}}],"scale":"500000","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad4e4b07f02db682b6c","contributors":{"authors":[{"text":"Duerr, A. D.","contributorId":29821,"corporation":false,"usgs":true,"family":"Duerr","given":"A.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":206052,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":31462,"text":"ofr01114 - 2001 - Potentiometric surfaces of the intermediate aquifer system, west-central Florida, September 2000","interactions":[],"lastModifiedDate":"2017-06-23T13:57:29","indexId":"ofr01114","displayToPublicDate":"2002-03-01T00:00:00","publicationYear":"2001","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":"2001-114","title":"Potentiometric surfaces of the intermediate aquifer system, west-central Florida, September 2000","docAbstract":"

The intermediate aquifer system underlies a 5,000-square-mile area within the Southwest Florida Water Management District including De Soto, Sarasota, Hardee, Manatee, and parts of Charlotte, Hillsborough, Highlands, Polk, and Lee Counties.  The intermediate aquifer system is overlain by the surficial aquifer system and is underlain by the Floridan aquifer system.  The intermediate aquifer system consists of layers of sand, shell, clay, calcareous clay, limestone, and dolomite of the Tamiami Formation and Hawthorn Group of Oligocene to Pleistocene age (Wingard and others, 1995).  The intermediate aquifer system contains one or more water-bearing units separated by discontinuous confining units.  The intermediate aquifer system is the principal source of potable water in the southwestern part of the study area and is widely used as a source of water where wells are open to the intermediate aquifer system or to both the intermediate and Floridan aquifer systems.  Yields of individual wells open to the intermediate aquifer system vary from a few gallons to several hundred gallons per minute.  The volume of water withdrawn from the intermediate aquifer system is considerably less than that withdrawn from the Floridan aquifer system in the study area (Duerr and others, 1988).

","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr01114","usgsCitation":"Duerr, A.D., 2001, Potentiometric surfaces of the intermediate aquifer system, west-central Florida, September 2000: U.S. Geological Survey Open-File Report 2001-114, 28.53 x 31.61 inches, https://doi.org/10.3133/ofr01114.","productDescription":"28.53 x 31.61 inches","costCenters":[],"links":[{"id":160583,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":59786,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2001/0114/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}}],"scale":"500000","country":"United States","state":"Florida","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad3e4b07f02db682181","contributors":{"authors":[{"text":"Duerr, A. D.","contributorId":29821,"corporation":false,"usgs":true,"family":"Duerr","given":"A.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":206051,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":31461,"text":"ofr0172 - 2001 - Preliminary mineralogical characterization of weathered and less-weathered strata of the Meade Peak phosphatic shale member of the Permian Phosphoria Formation: Measured sections C and D, Dry Valley, Caribou County, Idaho","interactions":[],"lastModifiedDate":"2022-07-22T18:52:58.65175","indexId":"ofr0172","displayToPublicDate":"2002-03-01T00:00:00","publicationYear":"2001","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":"2001-72","title":"Preliminary mineralogical characterization of weathered and less-weathered strata of the Meade Peak phosphatic shale member of the Permian Phosphoria Formation: Measured sections C and D, Dry Valley, Caribou County, Idaho","docAbstract":"This study used powder X-ray diffraction, with Rietveld quantification software to quantify and characterize the mineralogy of the 83 samples collected from two stratigraphic sections measured by the U.S. Geological Survey at the Dry Valley mine in the Meade Peak Member of the Phosphoria Formation. Analyses show extensive variability of carbonate substitution in the fluorapatite structure, determined by measuring the apatite a-cell dimension, as well as patterns of correlation between mineralogy and the stratigraphy.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr0172","collaboration":"Prepared in Collaboration With: Bureau of Land Management, Forest Service, Agrium U.S. Inc., Astaris LLC, J.R. Simplot Company, Monsanto, Rhodia Inc.","usgsCitation":"Knudsen, A.C., Gunter, M.E., and Herring, J.R., 2001, Preliminary mineralogical characterization of weathered and less-weathered strata of the Meade Peak phosphatic shale member of the Permian Phosphoria Formation: Measured sections C and D, Dry Valley, Caribou County, Idaho: U.S. Geological Survey Open-File Report 2001-72, Report: 69 p.; Readme, https://doi.org/10.3133/ofr0172.","productDescription":"Report: 69 p.; Readme","numberOfPages":"69","additionalOnlineFiles":"Y","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":335859,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":404380,"rank":5,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_45593.htm","linkFileType":{"id":5,"text":"html"}},{"id":282049,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2001/0072/readme.txt","linkFileType":{"id":1,"text":"pdf"}},{"id":2620,"rank":3,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2001/0072/"},{"id":282050,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2001/0072/pdf/of01-72.pdf"}],"country":"United States","state":"Idaho","county":"Caribou 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Andrew C.","contributorId":72819,"corporation":false,"usgs":true,"family":"Knudsen","given":"Andrew","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":511075,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gunter, Mickey E.","contributorId":52996,"corporation":false,"usgs":true,"family":"Gunter","given":"Mickey","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":511074,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Herring, James R.","contributorId":95492,"corporation":false,"usgs":true,"family":"Herring","given":"James","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":511076,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":31460,"text":"ofr0145 - 2001 - A simple calculator of ballistic trajectories for blocks ejected during volcanic eruptions","interactions":[],"lastModifiedDate":"2013-11-21T11:49:38","indexId":"ofr0145","displayToPublicDate":"2002-03-01T00:00:00","publicationYear":"2001","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":"2001-45","title":"A simple calculator of ballistic trajectories for blocks ejected during volcanic eruptions","docAbstract":"During the past century, numerous observers have described the violent ejection of large blocks and bombs from volcanoes during volcanic explosions. Minakami (1942) mapped the locations of blocks ejected from Asama Volcano during explosions in 1937. He developed a mathematical expression relating initial velocity and trajectory angle of ejected blocks to the ejection distance, taking into account air drag and assuming a constant drag coefficient. In the late 1950’s, Gorshkov (1959) estimated ejection velocities at Bezymianny volcano during its sector-collapse eruption. Wilson (1972) developed the first mathematical algorithm for ballistic trajectories in the volcanological literature (earlier ones had been available for military applications) that considered variations in drag coefficient with Reynolds number. Fagents and Wilson (1993) advanced the method of Wilson (1972) by considering the effect of reduced drag near the vent. From the 1970’s through the 1990’s other papers, too numerous to mention, have estimated volcanic ejection velocities from ballistic blocks. Since the early 1990’s there has been a decrease in the number of published papers that quantify ejection velocities from ballistic trajectories. This decrease has resulted in part from the appreciation that ejection velocities cannot be uniquely determined by ejection distance due to uncertainties in initial trajectory angle and drag force. On the other hand, the decrease in usage has coincided with an increase in the ease with which ballistic calculations can be made, due to the vast improvement in computer power and in the user-friendliness of computers. During the 1970’s, only volcanologists with mathematical acumen or those who could collaborate with applied mathematicians were able to make such estimates. With 21st century computer power, ballistic computation should be available to anyone as a back-of-the-envelope indicator of explosive power; the only factor preventing such usage is the lack of a user-friendly computer program. In this paper, I describe a program that can be used for quick ballistics calculations. The program, Eject!, was written in Microsoft Visual Basic® and operates on any personal computer running Microsoft® Windows 95 or later.\n\nInstructions on installing Eject! version 1.4\n1. Copy the file \"eject_1-4.zip\" to the hard drive of your Windows-based computer\n2. Unzip the files in \"eject_1-4.zip\"\n3. Double-click on the file \"setup.exe\". This will install the software on your computer.\n4. Once it is installed, go to the \"start\" button, the to \"programs.\" You will see the program in your program list.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr0145","usgsCitation":"Mastin, L.G., 2001, A simple calculator of ballistic trajectories for blocks ejected during volcanic eruptions (Originally posted November 2001; Updated November 2009): U.S. Geological Survey Open-File Report 2001-45, Report: iii, 13 p.; Exacutable program for Windows ZIP; Visual Basic 6 source code for version 1.4 ZIP, https://doi.org/10.3133/ofr0145.","productDescription":"Report: iii, 13 p.; Exacutable program for Windows ZIP; Visual Basic 6 source code for version 1.4 ZIP","numberOfPages":"18","additionalOnlineFiles":"Y","costCenters":[{"id":157,"text":"Cascades Volcano Observatory","active":false,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":160356,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr0145.jpg"},{"id":279331,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2001/0045/"},{"id":279332,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2001/0045/pdf/of2001-0045_v1-2.pdf"},{"id":279333,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/2001/0045/eject_1-4.zip"},{"id":279334,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/2001/0045/eject_1-4_source.zip"}],"edition":"Originally posted November 2001; Updated November 2009","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b17e4b07f02db6a651f","contributors":{"authors":[{"text":"Mastin, Larry G. 0000-0002-4795-1992 lgmastin@usgs.gov","orcid":"https://orcid.org/0000-0002-4795-1992","contributorId":555,"corporation":false,"usgs":true,"family":"Mastin","given":"Larry","email":"lgmastin@usgs.gov","middleInitial":"G.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":206047,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":31459,"text":"ofr019 - 2001 - Tampa Bay, Florida, March 22, 1991","interactions":[],"lastModifiedDate":"2022-08-25T20:58:38.899523","indexId":"ofr019","displayToPublicDate":"2002-03-01T00:00:00","publicationYear":"2001","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":"2001-9","title":"Tampa Bay, Florida, March 22, 1991","docAbstract":"

This poster has been prepared for education purposes. Colors are near neutral. Water and swampy areas are blue-black. Healthy plant growth is green. Agricultural fields and areas with low plant growth are pink and beige. Highways, parking lots, and other black surfaces are purple. Beach sand, cleared land, and cement are white or light blue. 

","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr019","usgsCitation":"Water Resources Division, U.S. Geological Survey, 2001, Tampa Bay, Florida, March 22, 1991: U.S. Geological Survey Open-File Report 2001-9, 1 Plate: 27.68 x 41.43 inches, https://doi.org/10.3133/ofr019.","productDescription":"1 Plate: 27.68 x 41.43 inches","costCenters":[],"links":[{"id":405640,"rank":2,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2001/0009/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":160355,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/2001/0009/report-thumb.jpg"}],"scale":"110000","country":"United States","state":"Florida","city":"Tampa Bay","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -82.935791015625,\n 27.15692045688088\n ],\n [\n -81.97998046875,\n 27.15692045688088\n ],\n [\n -81.97998046875,\n 28.285033294640684\n ],\n [\n -82.935791015625,\n 28.285033294640684\n ],\n [\n -82.935791015625,\n 27.15692045688088\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4adce4b07f02db68688a","contributors":{"authors":[{"text":"Water Resources Division, U.S. Geological Survey","contributorId":128075,"corporation":true,"usgs":false,"organization":"Water Resources Division, U.S. Geological Survey","id":529271,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":31504,"text":"ofr01452 - 2001 - Geologic map of the Riverside East 7.5' quadrangle, Riverside County, California","interactions":[],"lastModifiedDate":"2023-06-27T14:33:12.427887","indexId":"ofr01452","displayToPublicDate":"2002-03-01T00:00:00","publicationYear":"2001","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":"2001-452","title":"Geologic map of the Riverside East 7.5' quadrangle, Riverside County, California","docAbstract":"Open-File Report 01-452 contains a digital geologic map database of the Riverside East 7.5’ quadrangle, Riverside County, California that includes:\n\nARC/INFO Environmental Systems Research Institute (http://www.esri.com) version 7.2.1 coverages of the various elements of the geologic map.\nA Postscript file to plot the geologic map on a topographic base, containing a Correlation of Map Units diagram (CMU), a Description of Map Units (DMU), and an index map.\nPortable Document Format (.pdf) files of:\na. This Readme; includes in Appendix I, data contained in rse_met.txt\n\nb. The same graphic as plotted in 2 above. Test plots have not produced 1:24,000-scale map sheets. Adobe Acrobat page size setting influences map scale.\n\nThe Correlation of Map Units and Description of Map Units is in the editorial format of USGS Geologic Investigations Series (I-series) maps but has not been edited to comply with I-map standards. Within the geologic map data package, map units are identified by standard geologic map criteria such as formation-name, age, and lithology. Where known, grain size is indicated on the map by a subscripted letter or letters following the unit symbols as follows: lg, large boulders; b, boulder; g, gravel; a, arenaceous; s, silt; c, clay; e.g. Qyfa is a predominantly young alluvial fan deposit that is arenaceous. Multiple letters are used for more specific identification or for mixed units, e.g., Qfysa is a silty sand. In some cases, mixed units are indicated by a compound symbol; e.g., Qyf2sc. Marine deposits are in part overlain by local, mostly alluvial fan, deposits and are labeled Qomf. Grain size follows f.\n\nEven though this is an Open-File Report and includes the standard USGS Open-File disclaimer, the report closely adheres to the stratigraphic nomenclature of the U.S. Geological Survey. Descriptions of units can be obtained by viewing or plotting the .pdf file (3b above) or plotting the postscript file (2 above).","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr01452","collaboration":"Prepared in cooperation with California Division of Mines and Geology and U.S. Air Force","usgsCitation":"Morton, D.M., and Cox, B.F., 2001, Geologic map of the Riverside East 7.5' quadrangle, Riverside County, California: U.S. Geological Survey Open-File Report 2001-452, Report: 17 p.; 1 Plate: 48.00 x 35.00 inches; Readme; Metadata; Database, https://doi.org/10.3133/ofr01452.","productDescription":"Report: 17 p.; 1 Plate: 48.00 x 35.00 inches; Readme; Metadata; Database","numberOfPages":"17","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":161159,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr01452.jpg"},{"id":2687,"rank":9,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2001/0452/","linkFileType":{"id":5,"text":"html"}},{"id":283166,"rank":4,"type":{"id":9,"text":"Database"},"url":"https://pubs.usgs.gov/of/2001/0452/rse.tar.gz"},{"id":283167,"rank":3,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/2001/0452/symbols.tar.gz"},{"id":283168,"rank":2,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/2001/0452/rse_map.ps.gz"},{"id":283164,"rank":8,"type":{"id":20,"text":"Read Me"},"url":"https://pubs.usgs.gov/of/2001/0452/README.txt"},{"id":283163,"rank":7,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2001/0452/pdf/rse_map.pdf"},{"id":283165,"rank":6,"type":{"id":16,"text":"Metadata"},"url":"https://pubs.usgs.gov/of/2001/0452/rse_met.txt"},{"id":283162,"rank":5,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2001/0452/pdf/README.pdf"}],"scale":"24000","projection":"Polyconic projection","country":"United States","state":"California","county":"Riverside County","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -117.375,33.875 ], [ -117.375,34.0 ], [ -117.25,34.0 ], [ -117.25,33.875 ], [ -117.375,33.875 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae4e4b07f02db68a3ad","contributors":{"authors":[{"text":"Morton, Douglas M. scamp@usgs.gov","contributorId":4102,"corporation":false,"usgs":true,"family":"Morton","given":"Douglas","email":"scamp@usgs.gov","middleInitial":"M.","affiliations":[],"preferred":true,"id":206226,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cox, Brett F. bcox@usgs.gov","contributorId":5793,"corporation":false,"usgs":true,"family":"Cox","given":"Brett","email":"bcox@usgs.gov","middleInitial":"F.","affiliations":[],"preferred":true,"id":206227,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":31503,"text":"ofr01451 - 2001 - Geologic map of the Riverside West 7.5' quadrangle, Riverside County, California","interactions":[],"lastModifiedDate":"2023-06-27T14:32:12.759441","indexId":"ofr01451","displayToPublicDate":"2002-03-01T00:00:00","publicationYear":"2001","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":"2001-451","title":"Geologic map of the Riverside West 7.5' quadrangle, Riverside County, California","docAbstract":"Open-File Report 01-451 contains a digital geologic map database of the Riverside West 7.5’ quadrangle, Riverside County, California that includes:\n\nARC/INFO (Environmental Systems Research Institute, http://www.esri.com) version 7.2.1 coverages of the various elements of the geologic map.\nA PostScript file to plot the geologic map on a topographic base, containing a Correlation of Map Units diagram (CMU), a Description of Map Units (DMU), and an index map.\nPortable Document Format (.pdf) files of:\na. This Readme; includes in Appendix I, data contained in rsw_met.txt\n\nb. The same graphic as plotted in 2 above. Test plots have not produced 1:24,000-scale map sheets. Adobe Acrobat page size setting influences map scale.\n\nThe Correlation of Map Units and Description of Map Units is in the editorial format of USGS Geologic Investigations Series (I-series) maps but has not been edited to comply with I-map standards. Within the geologic map data package, map units are identified by standard geologic map criteria such as formation-name, age, and lithology. Where known, grain size is indicated on the map by a subscripted letter or letters following the unit symbols as follows: lg, large boulders; b, boulder; g, gravel; a, arenaceous; s, silt; c, clay; e.g. Qyfa is a predominantly young alluvial fan deposit that is arenaceous. Multiple letters are used for more specific identification or for mixed units, e.g., Qfysa is a silty sand. In some cases, mixed units are indicated by a compound symbol; e.g., Qyf2sc. Marine deposits are in part overlain by local, mostly alluvial fan, deposits and are labeled Qomf. Grain size follows f.Even though this is an Open-File Report and includes the standard USGS Open-File disclaimer, the report closely adheres to the stratigraphic nomenclature of the U.S. Geological Survey. Descriptions of units can be obtained by viewing or plotting the .pdf file (3b above) or plotting the postscript file (2 above).","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr01451","collaboration":"Prepared in cooperation with California Division of Mines and Geology","usgsCitation":"Morton, D.M., and Cox, B.F., 2001, Geologic map of the Riverside West 7.5' quadrangle, Riverside County, California: U.S. Geological Survey Open-File Report 2001-451, Report: 17 p.; 1 Plate: 48.00 x 35.00 inches; Readme; Metadata; Database, https://doi.org/10.3133/ofr01451.","productDescription":"Report: 17 p.; 1 Plate: 48.00 x 35.00 inches; Readme; Metadata; Database","numberOfPages":"17","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":161158,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr01451.jpg"},{"id":283157,"rank":8,"type":{"id":20,"text":"Read Me"},"url":"https://pubs.usgs.gov/of/2001/0451/README.txt"},{"id":283156,"rank":7,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2001/0451/pdf/rsw_map.pdf"},{"id":2686,"rank":9,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2001/0451/","linkFileType":{"id":5,"text":"html"}},{"id":283158,"rank":6,"type":{"id":16,"text":"Metadata"},"url":"https://pubs.usgs.gov/of/2001/0451/rsw_met.txt"},{"id":283159,"rank":4,"type":{"id":9,"text":"Database"},"url":"https://pubs.usgs.gov/of/2001/0451/rsw.tar.gz"},{"id":283160,"rank":3,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/2001/0451/symbols.tar.gz"},{"id":283161,"rank":2,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/2001/0451/rsw_map.ps.gz"},{"id":283155,"rank":5,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2001/0451/pdf/README.pdf"}],"scale":"24000","projection":"Polyconic projection","country":"United States","state":"California","county":"Riverside County","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -117.5,33.875 ], [ -117.5,34.0 ], [ -117.375,34.0 ], [ -117.375,33.875 ], [ -117.5,33.875 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae5e4b07f02db68a4bf","contributors":{"authors":[{"text":"Morton, Douglas M. scamp@usgs.gov","contributorId":4102,"corporation":false,"usgs":true,"family":"Morton","given":"Douglas","email":"scamp@usgs.gov","middleInitial":"M.","affiliations":[],"preferred":true,"id":206224,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cox, Brett F. bcox@usgs.gov","contributorId":5793,"corporation":false,"usgs":true,"family":"Cox","given":"Brett","email":"bcox@usgs.gov","middleInitial":"F.","affiliations":[],"preferred":true,"id":206225,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":31506,"text":"ofr01458 - 2001 - Application of geophysical techniques to minerals-related environmental problems","interactions":[],"lastModifiedDate":"2012-02-02T00:09:13","indexId":"ofr01458","displayToPublicDate":"2002-03-01T00:00:00","publicationYear":"2001","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":"2001-458","title":"Application of geophysical techniques to minerals-related environmental problems","language":"ENGLISH","doi":"10.3133/ofr01458","usgsCitation":"Watson, K., Fitterman, D., Saltus, R.W., McCafferty, A., Swayze, G.A., Church, S., Smith, K., Goldhaber, M., Robson, S., and McMahan, P., 2001, Application of geophysical techniques to minerals-related environmental problems (Version 1.0): U.S. Geological Survey Open-File Report 2001-458, 46 p., https://doi.org/10.3133/ofr01458.","productDescription":"46 p.","costCenters":[],"links":[{"id":161161,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":2688,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2001/ofr-01-0458/","linkFileType":{"id":5,"text":"html"}}],"edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac6e4b07f02db67a9de","contributors":{"authors":[{"text":"Watson, Ken","contributorId":90317,"corporation":false,"usgs":true,"family":"Watson","given":"Ken","email":"","affiliations":[],"preferred":false,"id":206242,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fitterman, David","contributorId":52033,"corporation":false,"usgs":true,"family":"Fitterman","given":"David","affiliations":[],"preferred":false,"id":206239,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Saltus, R. W.","contributorId":85588,"corporation":false,"usgs":true,"family":"Saltus","given":"R.","middleInitial":"W.","affiliations":[],"preferred":false,"id":206240,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"McCafferty, Anne","contributorId":18399,"corporation":false,"usgs":true,"family":"McCafferty","given":"Anne","affiliations":[],"preferred":false,"id":206234,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Swayze, Gregg A. 0000-0002-1814-7823 gswayze@usgs.gov","orcid":"https://orcid.org/0000-0002-1814-7823","contributorId":518,"corporation":false,"usgs":true,"family":"Swayze","given":"Gregg","email":"gswayze@usgs.gov","middleInitial":"A.","affiliations":[{"id":309,"text":"Geology and Geophysics Science Center","active":true,"usgs":true},{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":206233,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Church, Stan","contributorId":23237,"corporation":false,"usgs":true,"family":"Church","given":"Stan","affiliations":[],"preferred":false,"id":206236,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Smith, Kathy","contributorId":89560,"corporation":false,"usgs":true,"family":"Smith","given":"Kathy","email":"","affiliations":[],"preferred":false,"id":206241,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Goldhaber, Marty","contributorId":49657,"corporation":false,"usgs":true,"family":"Goldhaber","given":"Marty","email":"","affiliations":[],"preferred":false,"id":206238,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Robson, Stan","contributorId":23013,"corporation":false,"usgs":true,"family":"Robson","given":"Stan","email":"","affiliations":[],"preferred":false,"id":206235,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"McMahan, Pete","contributorId":25407,"corporation":false,"usgs":true,"family":"McMahan","given":"Pete","email":"","affiliations":[],"preferred":false,"id":206237,"contributorType":{"id":1,"text":"Authors"},"rank":10}]}} ,{"id":31434,"text":"ofr2001393 - 2001 - Thickness and geometry of Cenozoic deposits in California Wash area, Nevada, based on gravity and seismic-reflection data","interactions":[],"lastModifiedDate":"2012-02-10T00:10:09","indexId":"ofr2001393","displayToPublicDate":"2002-02-01T00:00:00","publicationYear":"2001","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":"2001-393","title":"Thickness and geometry of Cenozoic deposits in California Wash area, Nevada, based on gravity and seismic-reflection data","docAbstract":"Gravity and seismic-reflection data provide insights into the subsurface stratigraphy and structure of the California Wash area of southern Nevada. This area is part of the Lower Colorado flow system and stratigraphic and structural data are important inputs into developing the hydrogeologic framework. These data indicate that the basin beneath California Wash reaches depths of 2-3 km. The eastern margin of the basin coincides with a system of young (Quaternary and late Tertiary) faults, although both seismic and gravity data indicate that the major basin-bounding fault is 2-3 km west of the mapped young faults. Dry Lake Valley, the adjacent valley to the west, is characterized by thinner basin fill. The basin configuration beneath both California Wash and Dry Lake Valleys based on the inversion of gravity data is unconstrained because of the lack of gravity stations north of 36030?. Broad aeromagnetic anomalies beneath pre-Cenozoic basement in the Muddy Mountains and Arrow Canyon Range reflect Precambrian basement at depths of ~ 5 km. These rocks are probably barriers to ground-water flow,except where fractured.","language":"ENGLISH","doi":"10.3133/ofr2001393","usgsCitation":"Langenheim, V., Miller, J.J., Page, W.R., and Grow, J.A., 2001, Thickness and geometry of Cenozoic deposits in California Wash area, Nevada, based on gravity and seismic-reflection data: U.S. Geological Survey Open-File Report 2001-393, 27 p., https://doi.org/10.3133/ofr2001393.","productDescription":"27 p.","costCenters":[{"id":647,"text":"Western Earth Surface Processes","active":false,"usgs":true}],"links":[{"id":161482,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":8870,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2001/of01-393/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a54e4b07f02db62c596","contributors":{"authors":[{"text":"Langenheim, V.E. 0000-0003-2170-5213","orcid":"https://orcid.org/0000-0003-2170-5213","contributorId":54956,"corporation":false,"usgs":true,"family":"Langenheim","given":"V.E.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":false,"id":205980,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Miller, J. J.","contributorId":54588,"corporation":false,"usgs":true,"family":"Miller","given":"J.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":205979,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Page, W. R.","contributorId":73619,"corporation":false,"usgs":true,"family":"Page","given":"W.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":205981,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Grow, J. 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No abstract available.

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