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,{"id":31557,"text":"ofr01332 - 2001 - Hawaiian Volcano Observatory summary 100; Part 1, seismic data, January to December 2000","interactions":[],"lastModifiedDate":"2023-08-29T19:19:59.493186","indexId":"ofr01332","displayToPublicDate":"2002-04-01T00:00:00","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":"2001-332","title":"Hawaiian Volcano Observatory summary 100; Part 1, seismic data, January to December 2000","docAbstract":"<p>The Hawaiian Volcano Observatory (HVO) summary presents seismic data gathered during the year and a chronological narrative describing the volcanic events. The seismic summary is offered without interpretation as a source of preliminary data. It is complete in the sense that all data for events of M≥1.5 routinely gathered by the Observatory are included. The emphasis in collection of tilt and deformation data has shifted from quarterly measurements at a few water-tube tilt stations (“wet” tilt) to a larger number of continuously recording borehole tiltmeters, repeated measurements at numerous spirit-level tilt stations (“dry” tilt), and surveying of level and trilateration networks. Because of the large quantity of deformation data now gathered and differing schedules of data reduction, the seismic and deformation summaries are published separately.</p>\n<br/>\n<p>The HVO summaries have been published in various forms since 1956. Summaries prior to 1974 were issued quarterly, but cost, convenience of preparation and distribution, and the large quantities of data dictated an annual publication beginning with Summary 74 for the year 1974. Summary 86 (the introduction of CUSP at HVO) includes a description of the seismic instrumentation, calibration, and processing used in recent years. The present summary includes enough background information on the seismic network and processing to allow use of the data and to provide an understanding of how they were gathered.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr01332","usgsCitation":"Nakata, J.S., 2001, Hawaiian Volcano Observatory summary 100; Part 1, seismic data, January to December 2000: U.S. Geological Survey Open-File Report 2001-332, 77 p., https://doi.org/10.3133/ofr01332.","productDescription":"77 p.","numberOfPages":"77","temporalStart":"2000-01-01","temporalEnd":"2000-12-31","costCenters":[{"id":336,"text":"Hawaiian Volcano Observatory","active":false,"usgs":true}],"links":[{"id":420255,"rank":4,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_50574.htm","linkFileType":{"id":5,"text":"html"}},{"id":59806,"rank":3,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2001/0332/pdf/of01-332.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":282765,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":2765,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2001/0332/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Hawai'i","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -161.5,17.74 ], [ -161.5,23.23 ], [ -153.5,23.23 ], [ -153.5,17.74 ], [ -161.5,17.74 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a6de4b07f02db63f1b9","contributors":{"authors":[{"text":"Nakata, Jennifer S.","contributorId":18364,"corporation":false,"usgs":true,"family":"Nakata","given":"Jennifer","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":206371,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":31554,"text":"ofr01269 - 2001 - Alaska resource data files: Hagemeister Island quadrangle","interactions":[],"lastModifiedDate":"2025-07-29T11:50:24.123094","indexId":"ofr01269","displayToPublicDate":"2002-04-01T00:00:00","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":"2001-269","title":"Alaska resource data files: Hagemeister Island quadrangle","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr01269","usgsCitation":"Hudson, T., 2001, Alaska resource data files: Hagemeister Island quadrangle: U.S. Geological Survey Open-File Report 2001-269, 78 p., https://doi.org/10.3133/ofr01269.","productDescription":"78 p.","costCenters":[],"links":[{"id":400101,"rank":2,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_50586.htm","linkFileType":{"id":5,"text":"html"}},{"id":486934,"rank":4,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2001/0269/ofr20010296.pdf","text":"Report","size":"247 KB","linkFileType":{"id":1,"text":"pdf"},"description":"OFR 2001-0269"},{"id":2762,"rank":3,"type":{"id":18,"text":"Project Site"},"url":"https://doi.org/10.5066/P96MMRFD","linkFileType":{"id":5,"text":"html"}},{"id":160769,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.er.usgs.gov/thumbnails/usgs_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Hagemeister Island quadrangle","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -162.5,\n              58\n            ],\n            [\n              -160,\n              58\n            ],\n            [\n              -160,\n              59\n            ],\n            [\n              -162.5,\n              59\n            ],\n            [\n              -162.5,\n              58\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad5e4b07f02db6834c3","contributors":{"authors":[{"text":"Hudson, Travis","contributorId":90282,"corporation":false,"usgs":true,"family":"Hudson","given":"Travis","affiliations":[],"preferred":false,"id":206368,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":31551,"text":"ofr01219 - 2001 - Alaska resource data file: Bethel quadrangle","interactions":[],"lastModifiedDate":"2025-06-02T21:39:13.1526","indexId":"ofr01219","displayToPublicDate":"2002-04-01T00:00:00","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":"2001-219","title":"Alaska resource data file: Bethel quadrangle","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr01219","usgsCitation":"Hudson, T., 2001, Alaska resource data file: Bethel quadrangle: U.S. Geological Survey Open-File Report 2001-219, 60 p., https://doi.org/10.3133/ofr01219.","productDescription":"60 p.","costCenters":[],"links":[{"id":489427,"rank":4,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/2001/0219/coverthb.jpg"},{"id":389276,"rank":2,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_50584.htm"},{"id":2759,"rank":3,"type":{"id":18,"text":"Project Site"},"url":"https://doi.org/10.5066/P96MMRFD","linkFileType":{"id":5,"text":"html"}},{"id":160766,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":489428,"rank":5,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2001/0219/ofr01219.pdf"}],"country":"United States","state":"Alaska","otherGeospatial":"Bethel quadrangle","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -162,\n              61\n            ],\n            [\n              -159,\n              61\n            ],\n            [\n              -159,\n              60\n            ],\n            [\n              -162,\n              60\n            ],\n            [\n              -162,\n              61\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad5e4b07f02db6834cf","contributors":{"authors":[{"text":"Hudson, Travis","contributorId":90282,"corporation":false,"usgs":true,"family":"Hudson","given":"Travis","affiliations":[],"preferred":false,"id":206365,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":31550,"text":"ofr01200 - 2001 - Alaska resource data file: Taylor Mountains quadrangle","interactions":[],"lastModifiedDate":"2025-05-21T17:21:12.301386","indexId":"ofr01200","displayToPublicDate":"2002-04-01T00:00:00","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":"2001-200","title":"Alaska resource data file: Taylor Mountains quadrangle","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr01200","usgsCitation":"Hudson, T., 2001, Alaska resource data file: Taylor Mountains quadrangle: U.S. Geological Survey Open-File Report 2001-200, 51 p., https://doi.org/10.3133/ofr01200.","productDescription":"51 p.","costCenters":[],"links":[{"id":486295,"rank":4,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2001/0200/ofr01200.pdf","text":"Report","size":"278 KB","linkFileType":{"id":1,"text":"pdf"},"description":"OFR 01-200"},{"id":2758,"rank":2,"type":{"id":18,"text":"Project Site"},"url":"https://doi.org/10.5066/P96MMRFD","linkFileType":{"id":5,"text":"html"}},{"id":389282,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_50583.htm"},{"id":160765,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Taylor Mountains quadrangle","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -156,\n              61\n            ],\n            [\n              -159,\n              61\n            ],\n            [\n              -159,\n              60\n            ],\n            [\n              -156,\n              60\n            ],\n            [\n              -156,\n              61\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad5e4b07f02db68349d","contributors":{"authors":[{"text":"Hudson, Travis","contributorId":90282,"corporation":false,"usgs":true,"family":"Hudson","given":"Travis","affiliations":[],"preferred":false,"id":206364,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":31548,"text":"ofr01193 - 2001 - Alaska resource data file: Skagway quadrangle","interactions":[],"lastModifiedDate":"2025-05-21T17:26:09.296892","indexId":"ofr01193","displayToPublicDate":"2002-04-01T00:00:00","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":"2001-193","title":"Alaska resource data file: Skagway quadrangle","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr01193","usgsCitation":"Crafford, T.C., 2001, Alaska resource data file: Skagway quadrangle: U.S. Geological Survey Open-File Report 2001-193, 186 p., https://doi.org/10.3133/ofr01193.","productDescription":"186 p.","costCenters":[],"links":[{"id":486296,"rank":4,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2001/0193/ofr01193.pdf","text":"Report","size":"822 KB","linkFileType":{"id":1,"text":"pdf"},"description":"OFR 01-193"},{"id":160940,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":2756,"rank":3,"type":{"id":18,"text":"Project Site"},"url":"https://doi.org/10.5066/P96MMRFD","linkFileType":{"id":5,"text":"html"}},{"id":389281,"rank":2,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_50582.htm"}],"country":"United States","state":"Alaska","otherGeospatial":"Skagway quadrangle","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -135,\n              60\n            ],\n            [\n              -138,\n              60\n            ],\n            [\n              -138,\n              59\n            ],\n            [\n              -135,\n              59\n            ],\n            [\n              -135,\n              60\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad5e4b07f02db6834ca","contributors":{"authors":[{"text":"Crafford, Thomas C. 0000-0003-1524-0835","orcid":"https://orcid.org/0000-0003-1524-0835","contributorId":97953,"corporation":false,"usgs":true,"family":"Crafford","given":"Thomas","email":"","middleInitial":"C.","affiliations":[{"id":260,"text":"Energy and Minerals","active":false,"usgs":true}],"preferred":false,"id":206354,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":31572,"text":"ofr2001503 - 2001 - Gravity and Magnetic Surveys Over the Santa Rita Fault System, Southeastern Arizona","interactions":[],"lastModifiedDate":"2012-02-02T00:09:12","indexId":"ofr2001503","displayToPublicDate":"2002-04-01T00:00:00","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":"2001-503","title":"Gravity and Magnetic Surveys Over the Santa Rita Fault System, Southeastern Arizona","docAbstract":"Gravity and magnetic surveys were performed in the northeast portion of the Santa Rita Experimental Range, in southeastern Arizona, to identify faults and gain a better understanding of the subsurface geology. A total of 234 gravity stations were established, and numerous magnetic data were collected with portable and truck-mounted\r\nproton precession magnetometers. In addition, one line of very low frequency electromagnetic data was collected together with magnetic data.\r\n\r\n\r\nGravity anomalies are used to identify two normal faults that project northward toward a previously identified fault. The gravity data also confirm the location of a second previously interpreted normal fault. Interpretation of magnetic anomaly data indicates the presence of a higher-susceptibility sedimentary unit located beneath lowersusceptibility surficial sediments. Magnetic anomaly data identify a 1-km-wide negative anomaly east of these faults caused by an unknown source and reveal the high variability of susceptibility in the Tertiary intrusive rocks in the area.","language":"ENGLISH","publisher":"Geological Survey (U.S.)","doi":"10.3133/ofr2001503","usgsCitation":"Hegmann, M., 2001, Gravity and Magnetic Surveys Over the Santa Rita Fault System, Southeastern Arizona: U.S. Geological Survey Open-File Report 2001-503, Report: 108 p.; GIS Files, https://doi.org/10.3133/ofr2001503.","productDescription":"Report: 108 p.; GIS Files","onlineOnly":"Y","additionalOnlineFiles":"Y","costCenters":[{"id":658,"text":"Western Mineral Resources","active":false,"usgs":true}],"links":[{"id":161143,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":11423,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2001/of01-503/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4abae4b07f02db672279","contributors":{"authors":[{"text":"Hegmann, Mary","contributorId":67557,"corporation":false,"usgs":true,"family":"Hegmann","given":"Mary","email":"","affiliations":[],"preferred":false,"id":206421,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":31561,"text":"ofr01419 - 2001 - Selected hydrologic data for Cedar Valley, Iron County, southwestern Utah, 1930-2001","interactions":[],"lastModifiedDate":"2017-04-11T09:50:45","indexId":"ofr01419","displayToPublicDate":"2002-04-01T00:00:00","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":"2001-419","title":"Selected hydrologic data for Cedar Valley, Iron County, southwestern Utah, 1930-2001","docAbstract":"<p>This report presents hydrologic data collected by the U. S. Geological Survey from 1930 to 2001 with emphasis on data collected from 1997 to 2001 as part of a study of ground-water resources in Cedar Valley, Iron County, southwestern Utah (fig. 1). Data collected prior to this study are also presented to show long-term trends. Data were collected during this study in cooperation with the Central Iron County Water Conservancy District; Utah Department of Natural Resources, Division of Water Resources; Utah Department of Environmental Quality, Division of Water Quality; Cedar City; and Enoch City; as part of a study to better understand the ground-water resources of Cedar Valley and to assess possible effects of increased ground-water withdrawal on water quality. Quality of ground water in Cedar Valley is variable and water suppliers need to know if additional water resources can be developed without drawing water of lower quality into public-supply wells.</p><p>Cedar Valley is in central Iron County at the transitional boundary between the Basin and Range and Colorado Plateau physiographic provinces described by Hunt (1974) and covers about 570 mi2. Additional data from wells west of Cedar Valley and to the south in the vicinity of Kanarraville in the Virgin River drainage (Colorado River Basin) adjacent to the study area are included. Cedar Valley is bounded on the east by the Markagunt Plateau and Red Hills, on the southwest by the Harmony Mountains, on the west by a complex of low hills, and on the north by the Black Mountains. Altitudes in the study area range from about 5,300 ft in Mud Spring Canyon to about 10,400 ft at Blowhard Mountain to the east.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Salt Lake City, UT","doi":"10.3133/ofr01419","usgsCitation":"Howells, J.H., Mason, J.L., and Slaugh, B.A., 2001, Selected hydrologic data for Cedar Valley, Iron County, southwestern Utah, 1930-2001: U.S. Geological Survey Open-File Report 2001-419, Report: iv, 81 p.; 3 Plates: 18.90 x 26.00 inches or smaller, https://doi.org/10.3133/ofr01419.","productDescription":"Report: iv, 81 p.; 3 Plates: 18.90 x 26.00 inches or smaller","numberOfPages":"87","costCenters":[{"id":610,"text":"Utah Water Science Center","active":true,"usgs":true}],"links":[{"id":161174,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":339529,"rank":5,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2001/ofr01-419/PDf/plate3.pdf","text":"Plate 3","size":"1.5 MB","linkHelpText":"Map showing location of surface water sites where streamflow was measured for seepage estimates, Cedar Valley, Iron County, southwestern Utah"},{"id":339530,"rank":6,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2001/ofr01-419/PDf/OF01419.pdf","size":"5.1 MB"},{"id":339528,"rank":4,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2001/ofr01-419/PDf/plate2.pdf","text":"Plate 2","size":"241 KB","linkHelpText":"Map showing location of selected wells and surface-water sites where water-quality data were collected, Cedar Valley, Iron County, southwestern Utah"},{"id":2769,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2001/ofr01-419/","linkFileType":{"id":5,"text":"html"}},{"id":339527,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2001/ofr01-419/PDf/plate1.pdf","text":"Plate 1","size":"7.0 MB","linkHelpText":"Map showing location of selected wells used for water-level measurements, Cedar Valely, Iron County, southwestern Utah"}],"country":"United States","state":"Utah","county":"Iron County","otherGeospatial":"Cedar Valley","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -112.8333,\n              37.6\n            ],\n            [\n              -113.3333,\n              37.6\n            ],\n            [\n              -113.3333,\n              38.13333\n            ],\n            [\n              -112.8333,\n              38.13333\n            ],\n            [\n              -112.8333,\n             37.6\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e48f2e4b07f02db55a612","contributors":{"authors":[{"text":"Howells, James H. jhowells@usgs.gov","contributorId":969,"corporation":false,"usgs":true,"family":"Howells","given":"James","email":"jhowells@usgs.gov","middleInitial":"H.","affiliations":[],"preferred":true,"id":206389,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mason, James L.","contributorId":14397,"corporation":false,"usgs":true,"family":"Mason","given":"James","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":206390,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Slaugh, Bradley A. baslaugh@usgs.gov","contributorId":966,"corporation":false,"usgs":true,"family":"Slaugh","given":"Bradley","email":"baslaugh@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":true,"id":206388,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":38281,"text":"pp1649 - 2001 - Mountain Meadows Dacite: Oligocene intrusive complex that welds together the Los Angeles Basin, northwestern Peninsular Ranges, and central Transverse Ranges, California","interactions":[],"lastModifiedDate":"2014-03-28T14:36:00","indexId":"pp1649","displayToPublicDate":"2002-04-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":331,"text":"Professional Paper","code":"PP","onlineIssn":"2330-7102","printIssn":"1044-9612","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"1649","title":"Mountain Meadows Dacite: Oligocene intrusive complex that welds together the Los Angeles Basin, northwestern Peninsular Ranges, and central Transverse Ranges, California","docAbstract":"<p>Dikes and irregular intrusive bodies of distinctive Oligocene biotite dacite and serially related hornblende latite and felsite occur widely in the central and eastern San Gabriel Mountains, southern California, and are related to the Telegraph Peak granodiorite pluton. Identical dacite is locally present beneath Middle Miocene Topanga Group Glendora Volcanics at the northeastern edge of the Los Angeles Basin, where it is termed Mountain Meadows Dacite. This study mapped the western and southwestern limits of the dacite distribution to understand the provenance of derived redeposited clasts, to perceive Neogene offsets on several large strike-slip faults, to test published palinspastic reconstructions, and to better understand the tectonic boundaries that separate contrasting pre-Tertiary rock terranes where the Peninsular Ranges meet the central and western Transverse Ranges and the Los Angeles Basin.</p>\n<br>\n<p>Transported and redeposited clasts of dacite-latite occur in deformed lower Miocene and lower middle Miocene sandy conglomerates (nonmarine, nearshore, and infrequent upper bathyal) close to the northern and northeastern margins of the Los Angeles Basin for a distance of nearly 60 km. Tie-lines between distinctive source suites and clast occurrences indicate that large tracts of the ancestral San Gabriel Mountains were elevated along range-bounding faults as early as 16–15 Ma. The tie-lines prohibit very large strike-slip offsets on those faults. Transport of eroded dacite began south of the range as early as 18 Ma.</p>\n<br>\n<p>Published and unpublished data about rocks adjacent to the active Santa Monica-Hollywood-Raymond oblique reverse left-lateral fault indicate that cumulative left slip totals 13–14 km and total offset postdates 7 Ma. This cumulative slip, with assembly of stratigraphic and paleogeographic data, invalidates prior estimates of 60 to 90 km of left slip on these faults beginning about 17–16 Ma.</p>\n<br>\n<p>A new and different palinspastic reconstruction of a region southwest of the San Andreas Fault Zone is proposed. Our reconstruction incorporates 20° of clockwise rotation of tracts north of the Raymond Fault from the easternmost Santa Monica Mountains to the Vasquez Creek Fault (San Gabriel south branch). We interpret the Vasquez Creek Fault as a reverse and right-lateral tear fault. Right slip on the tear becomes reverse dip slip on the northeast-striking Clamshell-Sawpit fault complex, interpreted as an offset part of the Mount Lukens Fault. This explains the absence of evidence for lateral offset of the Glendora Volcanics and associated younger marine strata where those are broken farther east by the eastern Sierra Madre reverse fault system. About 34 km of right slip is suggested for all breaks of the San Gabriel fault system.</p>\n<br>\n<p>New paleogeographic maps of the Paleogene basin margin and of a Middle Miocene marine embayment and strandline derive in part from our palinspastic reconstruction. These appealingly simple maps fit well with data from the central Los Angeles Basin to the south and southwest.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/pp1649","usgsCitation":"McCulloh, T.H., Beyer, L.A., and Morin, R.W., 2001, Mountain Meadows Dacite: Oligocene intrusive complex that welds together the Los Angeles Basin, northwestern Peninsular Ranges, and central Transverse Ranges, California: U.S. Geological Survey Professional Paper 1649, 34 p., https://doi.org/10.3133/pp1649.","productDescription":"34 p.","numberOfPages":"35","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"links":[{"id":3508,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/pp/1649/","linkFileType":{"id":5,"text":"html"}},{"id":122077,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/pp/1649/report-thumb.jpg"},{"id":64660,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/pp/1649/pdf/pp1649.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"California","otherGeospatial":"Central Transverse Ranges;Los Angeles Basin;Northwestern Peninsular Ranges","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -118.25,34.0 ], [ -118.25,34.25 ], [ -117.75,34.25 ], [ -117.75,34.0 ], [ -118.25,34.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b32e4b07f02db6b47d0","contributors":{"authors":[{"text":"McCulloh, Thane H.","contributorId":100450,"corporation":false,"usgs":true,"family":"McCulloh","given":"Thane","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":219523,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Beyer, Larry A. lbeyer@usgs.gov","contributorId":2819,"corporation":false,"usgs":true,"family":"Beyer","given":"Larry","email":"lbeyer@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":true,"id":219522,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Morin, Ronald W.","contributorId":106182,"corporation":false,"usgs":true,"family":"Morin","given":"Ronald","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":219524,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":61463,"text":"mf2384 - 2001 - Debris flows triggered by the El Nino rainstorm of February 2-3, 1998, Walpert Ridge and vicinity, Alameda County, California","interactions":[],"lastModifiedDate":"2017-03-07T09:41:02","indexId":"mf2384","displayToPublicDate":"2002-04-01T00:00:00","publicationYear":"2001","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":"2384","title":"Debris flows triggered by the El Nino rainstorm of February 2-3, 1998, Walpert Ridge and vicinity, Alameda County, California","docAbstract":"On February 2 and 3, 1998, a rainstorm generated by the 1997-98 El Nino moved through the San Francisco Bay region of California triggering widespread slope failures. In the Walpert Ridge area of Alameda County 531 debris flows were triggered by the storm. These data depict the debris flows and landslides as polygons. The landslide polygons were mapped from 1:30,000 aerial photography using a PG2 photogrammetric plotter. The mapped debris flows and landslides were digitized manually in ArcInfo.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/mf2384","usgsCitation":"Coe, J.A., and Godt, J., 2001, Debris flows triggered by the El Nino rainstorm of February 2-3, 1998, Walpert Ridge and vicinity, Alameda County, California: U.S. Geological Survey Miscellaneous Field Studies Map 2384, Three sheets; 58 by 36 inches (in color), https://doi.org/10.3133/mf2384.","productDescription":"Three sheets; 58 by 36 inches (in color)","costCenters":[],"links":[{"id":182274,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":110239,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_46654.htm","linkFileType":{"id":5,"text":"html"},"description":"46654"},{"id":6034,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/mf/2002/mf-2384/","linkFileType":{"id":5,"text":"html"}}],"scale":"24000","country":"United States","state":"California","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -122.0675,37.534166666666664 ], [ -122.0675,37.666666666666664 ], [ -121.86749999999999,37.666666666666664 ], [ -121.86749999999999,37.534166666666664 ], [ -122.0675,37.534166666666664 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4abbe4b07f02db6727b8","contributors":{"authors":[{"text":"Coe, J. A.","contributorId":8867,"corporation":false,"usgs":true,"family":"Coe","given":"J.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":265699,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Godt, J. W.","contributorId":76732,"corporation":false,"usgs":true,"family":"Godt","given":"J. W.","affiliations":[],"preferred":false,"id":265700,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":31544,"text":"ofr01109 - 2001 - Alaska resource data file: Healy quadrangle","interactions":[],"lastModifiedDate":"2025-05-21T17:38:56.082121","indexId":"ofr01109","displayToPublicDate":"2002-04-01T00:00:00","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":"2001-109","title":"Alaska resource data file: Healy quadrangle","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr01109","usgsCitation":"Stevens, D.L., 2001, Alaska resource data file: Healy quadrangle: U.S. Geological Survey Open-File Report 2001-109, 441 p., https://doi.org/10.3133/ofr01109.","productDescription":"441 p.","costCenters":[],"links":[{"id":486301,"rank":4,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2001/0109/ofr01109.pdf","text":"Report","size":"1.33 MB","linkFileType":{"id":1,"text":"pdf"},"description":"OFR 01-109"},{"id":160936,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":2752,"rank":3,"type":{"id":18,"text":"Project Site"},"url":"https://doi.org/10.5066/P96MMRFD","linkFileType":{"id":5,"text":"html"}},{"id":389224,"rank":2,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_50577.htm"}],"country":"United States","state":"Alaska","otherGeospatial":"Healy quadrangle","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -150,\n              64\n            ],\n            [\n              -147,\n              64\n            ],\n            [\n              -147,\n              63\n            ],\n            [\n              -150,\n              63\n            ],\n            [\n              -150,\n              64\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad5e4b07f02db683476","contributors":{"authors":[{"text":"Stevens, D. L.","contributorId":59826,"corporation":false,"usgs":true,"family":"Stevens","given":"D.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":206350,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":31569,"text":"ofr2001480 - 2001 - High resolution study of petroleum source rock variation, Lower Cretaceous (Hauterivian and Barremian) of Mikkelsen Bay, North Slope, Alaska","interactions":[],"lastModifiedDate":"2012-02-02T00:09:12","indexId":"ofr2001480","displayToPublicDate":"2002-04-01T00:00:00","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":"2001-480","title":"High resolution study of petroleum source rock variation, Lower Cretaceous (Hauterivian and Barremian) of Mikkelsen Bay, North Slope, Alaska","docAbstract":"Open File Report 01-480 was designed as a large format poster for the Annual Meeting of the American Association of Petroleum Geologists and the Society for Sedimentary Geology in Denver Colorado in June 2001.  It is reproduced here in digital format to make widely available some unique images of mudstones.  The images include description, interpretation, and Rock-Eval data that resulted from a high-resolution study of petroleum source rock variation of the Lower Cretaceous succession of the Mobil-Phillips Mikkelsen Bay State #1 well on the North Slope of Alaska. Our mudstone samples with Rock-Eval data plus color images are significant because they come from one of the few continuously cored and complete intervals of the Lower Cretaceous succession on the North Slope.   This succession, which is rarely preserved in outcrop and very rarely cored in the subsurface, is considered to include important petroleum source rocks that have not previously been described nor explained \r\n\r\nAnother reason these images are unique is that the lithofacies variability within mudstone dominated successions is relatively poorly known in comparison with that observed in coarser clastic and carbonate successions.  They are also among the first published scans of thin sections of mudstone, and are of excellent quality because the sections are well made, cut perpendicular to bedding, and unusually thin, 20 microns.  For each of 15 samples, we show a thin section scan (cm scale) and an optical photomicrograph (mm scale) that illustrates the variability present.  Several backscattered SEM images are also shown.  Rock-Eval data for the samples can be compared with the textures and mineralogy present by correlating sample numbers and core depth. \r\n","language":"ENGLISH","doi":"10.3133/ofr2001480","usgsCitation":"Keller, M.A., Macquaker, J., and Lillis, P.G., 2001, High resolution study of petroleum source rock variation, Lower Cretaceous (Hauterivian and Barremian) of Mikkelsen Bay, North Slope, Alaska: U.S. Geological Survey Open-File Report 2001-480, 3 over-size sheets, 48 x 24 inches, https://doi.org/10.3133/ofr2001480.","productDescription":"3 over-size sheets, 48 x 24 inches","costCenters":[{"id":647,"text":"Western Earth Surface Processes","active":false,"usgs":true}],"links":[{"id":161108,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":8868,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2001/of01-480/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae1e4b07f02db68898e","contributors":{"authors":[{"text":"Keller, Margaret A. mkeller@usgs.gov","contributorId":1017,"corporation":false,"usgs":true,"family":"Keller","given":"Margaret","email":"mkeller@usgs.gov","middleInitial":"A.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":206416,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Macquaker, Joe H.S.","contributorId":21596,"corporation":false,"usgs":true,"family":"Macquaker","given":"Joe H.S.","affiliations":[],"preferred":false,"id":206418,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lillis, Paul G. 0000-0002-7508-1699 plillis@usgs.gov","orcid":"https://orcid.org/0000-0002-7508-1699","contributorId":1817,"corporation":false,"usgs":true,"family":"Lillis","given":"Paul","email":"plillis@usgs.gov","middleInitial":"G.","affiliations":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":206417,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":31008,"text":"wri014237 - 2001 - Seepage investigation for Leap, South Ash, Wet Sandy, and Leeds creeks in the Pine Valley Mountains, Washington County, Utah, 1998","interactions":[],"lastModifiedDate":"2017-02-02T15:12:04","indexId":"wri014237","displayToPublicDate":"2002-04-01T00:00:00","publicationYear":"2001","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":"2001-4237","title":"Seepage investigation for Leap, South Ash, Wet Sandy, and Leeds creeks in the Pine Valley Mountains, Washington County, Utah, 1998","docAbstract":"<p>Seepage loss-gain data were collected along four creeks (Leap, South Ash, Wet Sandy, and Leeds) that drain the eastern flank of the Pine Valley Mountains in southwestern Utah. Streamflow was measured at a minimum of eight sites on each of the four creeks during each of three (four on South Ash) seepage investigations at higher streamflows in May and June, and at lower streamflows during August, October, and November 1998. Only two reaches on Leap and Leeds Creeks showed a significant reversal of loss or gain trends between high and low streamflow where the difference in streamflow exceeded the measurement error.</p>\n<br/>\n<p>Error analyses were computed both for individual reaches between consecutive measurement sites and for composite reaches between specified, nonconsecutive measurement sites to determine if seepage losses or gains exceed the error associated with measurement of streamflow. Computed losses or gains at 31 individual reaches exceed the normalized measurement error; 16 were along channel reaches that traverse unconsolidated deposits, 7 were associated with reaches that traverse sedimentary rocks other than Navajo Sandstone, 6 were associated with reaches that traverse the Navajo Sandstone, and 2 were associated with reaches that traverse rocks of igneous origin.</p>\n<br/>\n<p>Composite reaches that encompass the outcrop of one of four hydrogeologic units (Navajo Sandstone, unconsolidated deposits, igneous rocks, or sedimentary rocks other than Navajo Sandstone) were used to compute the loss or gain based on the amount measured at the upstream and downstream nonconsecutive sites. For composite reaches that traverse outcrops of Navajo Sandstone, less water was measured at (or near) the downstream contact than at (or near) the upstream contact for 11 of the 13 seepage investigations. Of those 11 investigations with computed losses, the normalized difference (N d) was greater than the normalized error (N<sub><i>e</i></sub>) for 6 investigations and confirms that a source of recharge to the Navajo Sandstone is seepage loss from the measured streams.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Salt Lake City, UT","doi":"10.3133/wri014237","collaboration":"Prepared in cooperation with the U.S. Department of Justice and the U.S Department of Agriculture, U.S. Forest Service","usgsCitation":"Wilberg, D.E., Swenson, R.L., Slaugh, B.A., Howells, J.H., and Christiansen, H.K., 2001, Seepage investigation for Leap, South Ash, Wet Sandy, and Leeds creeks in the Pine Valley Mountains, Washington County, Utah, 1998: U.S. Geological Survey Water-Resources Investigations Report 2001-4237, iv, 42 p., https://doi.org/10.3133/wri014237.","productDescription":"iv, 42 p.","numberOfPages":"49","costCenters":[{"id":610,"text":"Utah Water Science Center","active":true,"usgs":true}],"links":[{"id":159886,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/wri014237.jpg"},{"id":286072,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/2001/4237/report.pdf"}],"projection":"Universal Transverse Mercator projection","country":"United States","state":"Utah","county":"Washington County","otherGeospatial":"Leap Creek, Leeds Creek, Pine Valley Mountains, South Ash Creek, Wet Sandy Creek","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -113.519989,37.159934 ], [ -113.519989,37.479938 ], [ -113.187757,37.479938 ], [ -113.187757,37.159934 ], [ -113.519989,37.159934 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a0ae4b07f02db5fba2a","contributors":{"authors":[{"text":"Wilberg, Dale E.","contributorId":101275,"corporation":false,"usgs":true,"family":"Wilberg","given":"Dale","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":204576,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Swenson, Robert L.","contributorId":64697,"corporation":false,"usgs":true,"family":"Swenson","given":"Robert","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":204575,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Slaugh, Bradley A.","contributorId":43003,"corporation":false,"usgs":true,"family":"Slaugh","given":"Bradley","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":204573,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Howells, James H. jhowells@usgs.gov","contributorId":969,"corporation":false,"usgs":true,"family":"Howells","given":"James","email":"jhowells@usgs.gov","middleInitial":"H.","affiliations":[],"preferred":true,"id":204572,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Christiansen, Howard K.","contributorId":47830,"corporation":false,"usgs":true,"family":"Christiansen","given":"Howard","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":204574,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":31012,"text":"wri014270 - 2001 - Stratigraphy and vertical hydraulic conductivity of the St. Francois confining unit in townships 25-27 N. and ranges 01-02 W., southeastern Missouri","interactions":[],"lastModifiedDate":"2014-04-09T15:28:05","indexId":"wri014270","displayToPublicDate":"2002-04-01T00:00:00","publicationYear":"2001","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":"2001-4270","title":"Stratigraphy and vertical hydraulic conductivity of the St. Francois confining unit in townships 25-27 N. and ranges 01-02 W., southeastern Missouri","docAbstract":"The St. Francois confining unit (DerbyDoerun\nDolomite and Davis Formation) lies\nbeneath the Ozark aquifer (Jefferson City Dolomite\nto the Potosi Dolomite) and impedes the circulation\nof water between the overlying Ozark\naquifer and the underlying St. Francois aquifer\n(Bonneterre Formation and Lamotte Sandstone).\nThe Bonneterre Formation is the potential host\nformation for lead-zinc deposits in the area. There\nis concern that mine dewatering in the Bonneterre\nFormation could lower water levels in the Ozark\naquifer. To address this concern, the vertical\nhydraulic conductivity of the St. Francois confining\nunit in six townships (T. 25-27 N. and R. 01-\n02 W.) of Oregon, Carter, and Ripley Counties of\nsoutheastern Missouri was evaluated by describing\nthe stratigraphy and measuring the vertical\nhydraulic conductivity of core samples.\nThe Davis Formation is an intrashelf basin\nfacies consisting of a series of shales interbedded\nwith shaley limestones, shale-free limestones, and\nlocal dolostones, and ranges from 24 to 320ft\n(feet) thick, but typically the thickness is 100 to\n200 ft. Shale-dominant sequences can be tens of\nfeet thick, and contain as much as 90 percent shale.\nCarbonate-dominant zones may be 70 ft thick or\ngreater. The top of the Davis Formation (based on\n56 data points) ranges from 620 to 2,022 ft deep\nand ranges in altitude from 40ft below sea level in\nthe northern part of the study area to 1, 182 ft below\nsea level in the southern part of the study area.\nThe Derby-Doerun Dolomite represents a\npair of superimposed carbonate ramp cycles.\nWhere present, the basal shaley sequence represents\na transition with the Davis Formation. The\nformation (based on 50 data points) ranges from\n50 to 386ft thick, but typically is 120 to 180ft\nthick in the study area. The top of the DerbyDoerun\nDolomite ranges from 495 to 2,020 ft deep\n(based on 53 data points), and ranges in altitude\nfrom 85 ft above sea level to 94 7 ft below sea level.\nThe St. Francois confining unit is thickest in\nthe central and southern parts of the study area.\nThe thickness, as determined by 51 core logs that\ncompletely penetrate the unit, ranges from less\nthan 200ft in the northwestern and east-central\nparts of the study area to 411 ft in the central part,\nbut typically ranges from 270 to 340 ft. The net\nshale thickness of the confining unit (based on 29\ndata points) ranges from 1. 7 ft in the east -central\npart of the study area to 89 ft in the southwest part.\nThese net shale thickness values include the cumulative\nshale thickness of rock from the top of the\nDerby-Doerun Dolomite to the base of the False\nDavis.\nVertical hydraulic conductivities of 35 rock\ncore samples from the St. Francois confining unit\nin the study area range from 7.6 x 10<sup>-15</sup> to 2.1 x\n10<sup>-10</sup> ft/s (foot per second). The logarithmic transformed\nvertical hydraulic conductivities of the\nDerby-Doerun Dolomite and Davis Formation are\nsimilar (p-value = 0.073) using the statistical twosample\nt-test; however, this p-value approaches\nthe level of significance value of 0.05. The vertical\nhydraulic conductivity of the Derby-Doerun\nDolomite is larger and less variable than the Davis\nFormation. When grouped by rock type, the vertical\nhydraulic conductivity of samples that contain\ncarbonate, shale, or both carbonate and shale, are\nsimilar.\nA comparison on the ranked data using the\nMann-Whitney test shows the confining unit in the\nstudy area is statistically different (p-value =\n0.020) from the confining unit in the prospecting\narea (west and adjacent to the study area). The\nmedian value of the vertical hydraulic conductivity\ndata from the study area (6.7 x 10<sup>-13</sup> ft/s) is three\ntimes larger than the median vertical hydraulic\nconductivity value for the prospecting area (2.2 x\n10<sup>-13</sup> ft/s ). The interquartile range shows that the\nvariability of the study area data spans one order of\nmagnitude (2.0 x 10<sup>-13</sup> to 2.2 x 10<sup>-12</sup> ft/s) and that\nthe corresponding data from the prospecting area\nspans nearly two orders of magnitude (3.2 x 10<sup>-14</sup>\nto 1.1 x 10<sup>-12</sup> ft/s).\nThe ranked vertical hydraulic conductivities\nof the Derby-Doerun Dolomite in the two areas are\nstatistically similar (p-value = 0.514). The median\nvertical hydraulic conductivity of the study area\ndata ( 1.2 X 10<sup>-12</sup> ft/s) is about three times greater\nthan the median value of the prospecting area data\n(4.4 x 10<sup>-13</sup> ft/s). The variability of the data, as\nshown by the interquartile range, is less in the\nstudy area (5.5 x 10<sup>-13</sup> to 2.2 x 10<sup>-12</sup> ft/s; spanning\nless than one order of magnitude) as compared to\nthe prospecting area (3.2 x 10<sup>-14</sup> to 6.3 x 10<sup>-10</sup>\nft/s; spanning over four orders of magnitude).\nThe ranked vertical hydraulic conductivities\nof the Davis Formation in the two areas show these\ndata sets are statistically similar (p-value = 0.076).\nThe median vertical hydraulic conductivity value\nof study area samples ( 4.5 x 10<sup>-13<sup> ft/s) is three\ntimes greater than the median value of the prospecting\narea data (1.6 x 10<sup>-13</sup> ft/s). The interquartile\nrange of the study area data spans one order of\nmagnitude (1.2 x 10<sup>-13</sup> to 1.4 x 10<sup>-12</sup> ft/s) and the corresponding data from the prospecting area\nspans nearly 1.5 orders of magnitude (3.2 x 10<sup>-14</sup>\nto 7.4 x 10<sup>-13</sup> ft/s).\nThe Mann-Whitney test shows the ranked\nvertical hydraulic conductivities of each rock type\nfrom the study area are statistically similar to the\nsame rock type in the prospecting area [carbonates\n(p-value = 0.225), shales (p-value = 0.668), and\ncarbonates and shales (p-value = 0.227)]. However,\nin each of the three cases the study area samples\nhave larger median values and less variability\nthan the prospecting area samples.\nBecause the vertical hydraulic conductivity\nof the various rock types of the confining unit in\nthe study area are statistically similar, the entire\ncarbonate-shale thickness is the primary factor\ndetermining the effectiveness of the confining unit.\nThe range of effective vertical hydraulic conductivity\nof the St. Francois confining unit in the study\narea using appropriate minimum and maximum\nthickness, net shale thickness, and vertical hydraulic\nconductivities is 3 X 10<sup>-13</sup> to 2 X 10<sup>-12</sup> ft/s. The\nvertical hydraulic conductivity of the confining\nunit is small, and the confining unit effectively\nimpedes the ground-water flow between the Ozark\naquifer and the St. Francois aquifer, unless preferred-\npath secondary permeability has developed\nalong faults and fractures that extend through the\nconfining unit.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Rolla, MO","doi":"10.3133/wri014270","collaboration":"Prepared in cooperation with the U.S. Department of Agriculture, Forest Service, U.S. Department of the Interior, Bureau of Land Management, and Missouri Department of Conservation","usgsCitation":"Kleeschulte, M., and Seeger, C., 2001, Stratigraphy and vertical hydraulic conductivity of the St. Francois confining unit in townships 25-27 N. and ranges 01-02 W., southeastern Missouri: U.S. Geological Survey Water-Resources Investigations Report 2001-4270, 63 p., https://doi.org/10.3133/wri014270.","productDescription":"63 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":160861,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/wri014270.jpg"},{"id":286074,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/2001/4270/report.pdf"}],"scale":"100000","projection":"Universal Transverse Mercator, Zone 15","country":"United States","state":"Missouri","otherGeospatial":"Mark Twain National Forest","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -91.621674,36.420187 ], [ -91.621674,37.19669 ], [ -90.689163,37.19669 ], [ -90.689163,36.420187 ], [ -91.621674,36.420187 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b19e4b07f02db6a7c5f","contributors":{"authors":[{"text":"Kleeschulte, M. J.","contributorId":73222,"corporation":false,"usgs":true,"family":"Kleeschulte","given":"M. J.","affiliations":[],"preferred":false,"id":204585,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Seeger, C.M.","contributorId":55484,"corporation":false,"usgs":true,"family":"Seeger","given":"C.M.","email":"","affiliations":[],"preferred":false,"id":204584,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":31545,"text":"ofr01110 - 2001 - Alaska resource data file: Cordova quadrangle","interactions":[],"lastModifiedDate":"2025-05-21T17:40:24.480947","indexId":"ofr01110","displayToPublicDate":"2002-04-01T00:00:00","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":"2001-110","title":"Alaska resource data file: Cordova quadrangle","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr01110","usgsCitation":"Nelson, S., 2001, Alaska resource data file: Cordova quadrangle: U.S. Geological Survey Open-File Report 2001-110, 147 p., https://doi.org/10.3133/ofr01110.","productDescription":"147 p.","costCenters":[],"links":[{"id":486302,"rank":4,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2001/0110/ofr01110.pdf","text":"Report","size":"584 KB","linkFileType":{"id":1,"text":"pdf"},"description":"OFR 01-110"},{"id":160937,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":2753,"rank":3,"type":{"id":18,"text":"Project Site"},"url":"https://doi.org/10.5066/P96MMRFD","linkFileType":{"id":5,"text":"html"}},{"id":389223,"rank":2,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_50578.htm"}],"country":"United States","state":"Alaska","otherGeospatial":"Cordova quadrangle","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -147.0,\n              60\n            ],\n            [\n              -144,\n              60\n            ],\n            [\n              -144,\n              61.0\n            ],\n            [\n              -147.0,\n              61.0\n            ],\n            [\n              -147.0,\n              60\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad5e4b07f02db6834ac","contributors":{"authors":[{"text":"Nelson, S.W.","contributorId":67869,"corporation":false,"usgs":true,"family":"Nelson","given":"S.W.","email":"","affiliations":[],"preferred":false,"id":206351,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":31543,"text":"ofr00447B - 2001 - Use of InSAR to identify land-surface displacements caused by aquifer-system compaction in the Paso Robles area, San Luis Obispo County, California, March to August 1997","interactions":[],"lastModifiedDate":"2026-04-29T15:22:50.093967","indexId":"ofr00447B","displayToPublicDate":"2002-04-01T00:00:00","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":"2000-447","chapter":"B","title":"Use of InSAR to identify land-surface displacements caused by aquifer-system compaction in the Paso Robles area, San Luis Obispo County, California, March to August 1997","docAbstract":"The population in San Luis Obispo County has grown steadily during the 1990s, and some land use has been converted from dry farming to grazing to irrigated vineyards and urban areas. Because insufficient surface-water supplies are available to meet the growing demand, ground-water pumpage has increased and the resulting water-level declines have raised concern that this water resource may become overstressed. One particular concern is whether the larger ground-water basins within the county function as large individual basins or whether subsurface structures divide these large basins into smaller subbasins, as differences in ground-water-level data suggest. Interferometric Synthetic Aperture Radar (InSAR) is used in locating land-surface displacement, which may indicate subsurface structures in ground-water basins by determining seasonal and historical land-surface changes. Owing to the high spatial detail of InSAR imagery, the InSAR-derived displacement maps can be used with ground-water-level data to reveal differential aquifer-system compaction related to the presence of geological structures or the distribution of compressible sediments that may define subbasin boundaries. This report describes InSAR displacement maps of the Paso Robles area of San Luis Obispo County and compares them to maps of seasonal changes in ground-water levels to detect the presence of aquifer-system compaction.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr00447B","usgsCitation":"Valentine, D., Densmore, J., Galloway, D., and Amelung, F., 2001, Use of InSAR to identify land-surface displacements caused by aquifer-system compaction in the Paso Robles area, San Luis Obispo County, California, March to August 1997: U.S. Geological Survey Open-File Report 2000-447, 1 over-size sheet., https://doi.org/10.3133/ofr00447B.","productDescription":"1 Plate: 48.00 x 36.00 inches","costCenters":[],"links":[{"id":503628,"rank":3,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2000/ofr00-447/pdf/ofr00-447.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":2751,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2000/ofr00-447/","linkFileType":{"id":5,"text":"html"}},{"id":160935,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"country":"United States","state":"California","county":"San Luis Obispo County","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a18e4b07f02db605204","contributors":{"authors":[{"text":"Valentine, David W.","contributorId":47427,"corporation":false,"usgs":true,"family":"Valentine","given":"David","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":206348,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Densmore, Jill N. 0000-0002-5345-6613 jidensmo@usgs.gov","orcid":"https://orcid.org/0000-0002-5345-6613","contributorId":197491,"corporation":false,"usgs":true,"family":"Densmore","given":"Jill","email":"jidensmo@usgs.gov","middleInitial":"N.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":206349,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"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":5078,"text":"Southwest Regional Director's Office","active":true,"usgs":true},{"id":35860,"text":"Ohio-Kentucky-Indiana Water Science Center","active":true,"usgs":true},{"id":509,"text":"Office of the Associate Director for Water","active":true,"usgs":true},{"id":5058,"text":"Office of the Chief Scientist for Water","active":true,"usgs":true}],"preferred":true,"id":206346,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Amelung, Falk","contributorId":83569,"corporation":false,"usgs":true,"family":"Amelung","given":"Falk","affiliations":[],"preferred":false,"id":206347,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":31477,"text":"ofr01400 - 2001 - Facies analysis of Tertiary basin-filling rocks of the Death Valley regional ground-water system and surrounding areas, Nevada and California","interactions":[],"lastModifiedDate":"2012-02-02T00:09:03","indexId":"ofr01400","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":"2001-400","title":"Facies analysis of Tertiary basin-filling rocks of the Death Valley regional ground-water system and surrounding areas, Nevada and California","docAbstract":"Existing hydrologic models of the Death Valley region typically have defined the Cenozoic basins as those areas that are covered by recent surficial deposits, and have treated the basin-fill deposits that are concealed under alluvium as a single unit with uniform hydrologic properties throughout the region, and with depth. Although this latter generalization was known to be flawed, it evidently was made because available geologic syntheses did not provide the basis for a more detailed characterization. As an initial attempt to address this problem, this report presents a compilation and synthesis of existing and new surface and subsurface data on the lithologic variations between and within the Cenozoic basin fills of this region. The most permeable lithologies in the Cenozoic basin fills are freshwater limestones, unaltered densely welded tuffs, and little-consolidated coarse alluvium. The least permeable lithologies are playa claystones, altered nonwelded tuffs, and tuffaceous and clay-matrix sediments of several types. In all but the youngest of the basin fills, permeability probably decreases strongly with depth owing to a typically increasing abundance of volcanic ash or clay in the matrices of the clastic sediments with increasing age (and therefore with increasing depth in general), and to increasing consolidation and alteration (both hydrothermal and diagenetic) with increasing depth and age. This report concludes with a categorization of the Cenozoic basins of the Death Valley region according to the predominant lithologies in the different basin fills and presents qualitative constraints on the hydrologic properties of these major lithologic categories.","language":"ENGLISH","doi":"10.3133/ofr01400","usgsCitation":"Sweetkind, D., Fridrich, C.J., and Taylor, E., 2001, Facies analysis of Tertiary basin-filling rocks of the Death Valley regional ground-water system and surrounding areas, Nevada and California (Version 1.0): U.S. Geological Survey Open-File Report 2001-400, 55 p., https://doi.org/10.3133/ofr01400.","productDescription":"55 p.","costCenters":[],"links":[{"id":160190,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":2632,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2001/ofr-01-0400/","linkFileType":{"id":5,"text":"html"}}],"edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a06e4b07f02db5f8885","contributors":{"authors":[{"text":"Sweetkind, Donald S.","contributorId":18732,"corporation":false,"usgs":true,"family":"Sweetkind","given":"Donald S.","affiliations":[],"preferred":false,"id":206093,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fridrich, Christopher J. 0000-0003-2453-6478 fridrich@usgs.gov","orcid":"https://orcid.org/0000-0003-2453-6478","contributorId":1251,"corporation":false,"usgs":true,"family":"Fridrich","given":"Christopher","email":"fridrich@usgs.gov","middleInitial":"J.","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":206092,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Taylor, Emily","contributorId":41474,"corporation":false,"usgs":true,"family":"Taylor","given":"Emily","affiliations":[],"preferred":false,"id":206094,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":31473,"text":"ofr01321 - 2001 - Chromite deposits in central part Stillwater Complex, Sweet Grass County, Montana: A digital database for the geologic map of the east slope of Iron Mountain","interactions":[],"lastModifiedDate":"2023-06-27T15:13:08.273012","indexId":"ofr01321","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":"2001-321","title":"Chromite deposits in central part Stillwater Complex, Sweet Grass County, Montana: A digital database for the geologic map of the east slope of Iron Mountain","docAbstract":"In 1940, A.L. Howland and J. W. Peoples, assisted by W.R. Jones and M.G. Bennett, mapped the geology of the east slope of Iron Mountain, Montana. The map was revised and extended by Howland in 1942 and published in 1955 as plate 10 of the U.S. Geological Survey Bulletin 1015-D (Howland, 1955). In 2000, the USGS contracted Optronics Specialty Co., Inc. of Northridge, CA to prepare a scanned digital version of plate 10. Geospatial editing and attributing of the scanned map of the east slope of Iron Mountain was performed by the USGS in order to produce an interim digital product. This digital geospatial database is one of many being created by the U.S. Geological Survey as an ongoing effort to provide geologic information in a geographic information system (GIS) for use in spatial analysis.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr01321","usgsCitation":"Howland, A.L., and Moyer, L.A., 2001, Chromite deposits in central part Stillwater Complex, Sweet Grass County, Montana: A digital database for the geologic map of the east slope of Iron Mountain: U.S. Geological Survey Open-File Report 2001-321, Report: 26 p.; Map: PDF, 33.56 x 30.54 inches; Readme; Metadata, https://doi.org/10.3133/ofr01321.","productDescription":"Report: 26 p.; Map: PDF, 33.56 x 30.54 inches; Readme; Metadata","numberOfPages":"26","additionalOnlineFiles":"Y","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":160171,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":282762,"rank":2,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/2001/0321/IRONMTN.EPS"},{"id":282761,"rank":3,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/2001/0321/IRONMTN.HP"},{"id":282759,"rank":4,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2001/0321/pdf/IRONMTN.PDF","linkFileType":{"id":1,"text":"pdf"}},{"id":282758,"rank":5,"type":{"id":16,"text":"Metadata"},"url":"https://pubs.usgs.gov/of/2001/0321/IRONMTN.MET"},{"id":282760,"rank":6,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2001/0321/pdf/ironmtn-map.pdf","text":"Plate 1","linkFileType":{"id":1,"text":"pdf"}},{"id":282757,"rank":7,"type":{"id":20,"text":"Read Me"},"url":"https://pubs.usgs.gov/of/2001/0321/00README.TXT"},{"id":2629,"rank":8,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2001/0321/","linkFileType":{"id":5,"text":"html"}},{"id":110229,"rank":9,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_45474.htm","linkFileType":{"id":5,"text":"html"},"description":"45474"}],"scale":"3077","datum":"North American Datum 1927","country":"United States","state":"Montana","county":"Sweet Grass County","otherGeospatial":"Iron Mountain","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -110.06,45.40 ], [ -110.06,45.41 ], [ -110.05,45.41 ], [ -110.05,45.40 ], [ -110.06,45.40 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49dde4b07f02db5e24a0","contributors":{"authors":[{"text":"Howland, A. L.","contributorId":69109,"corporation":false,"usgs":true,"family":"Howland","given":"A.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":206083,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Moyer, Lorre A.","contributorId":106152,"corporation":false,"usgs":true,"family":"Moyer","given":"Lorre","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":206084,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":31502,"text":"ofr01450 - 2001 - Geologic map of the Sunnymead 7.5' quadrangle, Riverside County, California","interactions":[],"lastModifiedDate":"2023-06-27T14:44:55.094593","indexId":"ofr01450","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":"2001-450","title":"Geologic map of the Sunnymead 7.5' quadrangle, Riverside County, California","docAbstract":"Open-File Report 01-450 contains a digital geologic map database of the Sunnymead 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 sun_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/ofr01450","collaboration":"Prepared in cooperation with California Division of Mines and Geology and U.S. Air Force","usgsCitation":"Morton, D.M., and Matti, J.C., 2001, Geologic map of the Sunnymead 7.5' quadrangle, Riverside County, California: U.S. Geological Survey Open-File Report 2001-450, Report: 18 p.; 1 Plate: 48.00 x 35.00 inches; Readme; Metadata; Database, https://doi.org/10.3133/ofr01450.","productDescription":"Report: 18 p.; 1 Plate: 48.00 x 35.00 inches; Readme; Metadata; Database","numberOfPages":"18","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":161157,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":2685,"rank":9,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2001/0450/","linkFileType":{"id":5,"text":"html"}},{"id":283154,"rank":2,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/2001/0450/sun_map.ps.gz"},{"id":283153,"rank":3,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/2001/0450/symbols.tar.gz"},{"id":283152,"rank":4,"type":{"id":9,"text":"Database"},"url":"https://pubs.usgs.gov/of/2001/0450/sun.tar.gz"},{"id":283151,"rank":6,"type":{"id":16,"text":"Metadata"},"url":"https://pubs.usgs.gov/of/2001/0450/sun_met.txt"},{"id":283149,"rank":7,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2001/0450/pdf/sun_map.pdf","text":"Plate 1","linkFileType":{"id":1,"text":"pdf"}},{"id":283148,"rank":5,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2001/0450/pdf/README.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":283150,"rank":8,"type":{"id":20,"text":"Read Me"},"url":"https://pubs.usgs.gov/of/2001/0450/README.txt"}],"scale":"24000","projection":"Polyconic projection","country":"United States","state":"California","county":"Riverside County","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -117.25,33.875 ], [ -117.25,34.0 ], [ 117.125,34.0 ], [ 117.125,33.875 ], [ -117.25,33.875 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae5e4b07f02db68a679","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":206223,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Matti, Jonathan C. jmatti@usgs.gov","contributorId":3666,"corporation":false,"usgs":true,"family":"Matti","given":"Jonathan","email":"jmatti@usgs.gov","middleInitial":"C.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":false,"id":206222,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":31515,"text":"ofr01479 - 2001 - Geologic map of the Lake Mathews 7.5' quadrangle, Riverside County, California","interactions":[],"lastModifiedDate":"2023-06-27T14:43:11.878138","indexId":"ofr01479","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":"2001-479","title":"Geologic map of the Lake Mathews 7.5' quadrangle, Riverside County, California","docAbstract":"Open-File Report 01-479 contains a digital geologic map database of the Lake Mathews 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 lkm_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 Miscellaneous 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/ofr01479","collaboration":"Prepared in cooperation with California Division of Mines and Geology","usgsCitation":"Morton, D.M., and Weber, F., 2001, Geologic map of the Lake Mathews 7.5' quadrangle, Riverside County, California: U.S. Geological Survey Open-File Report 2001-479, Report: 18 p.; 1 Plate: 48.00 x 35.00 inches; Readme; Metadata; Database, https://doi.org/10.3133/ofr01479.","productDescription":"Report: 18 p.; 1 Plate: 48.00 x 35.00 inches; Readme; Metadata; Database","numberOfPages":"18","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":161133,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr01479.jpg"},{"id":2695,"rank":9,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2001/0479/","linkFileType":{"id":5,"text":"html"}},{"id":283170,"rank":7,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2001/0479/pdf/lkm_map.pdf","text":"Plate 1","linkFileType":{"id":1,"text":"pdf"}},{"id":283171,"rank":8,"type":{"id":20,"text":"Read Me"},"url":"https://pubs.usgs.gov/of/2001/0479/README.txt"},{"id":283172,"rank":6,"type":{"id":16,"text":"Metadata"},"url":"https://pubs.usgs.gov/of/2001/0479/lkm_met.txt"},{"id":283173,"rank":4,"type":{"id":9,"text":"Database"},"url":"https://pubs.usgs.gov/of/2001/0479/lkm.tar.gz"},{"id":283169,"rank":5,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2001/0479/pdf/README.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":283175,"rank":2,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/2001/0479/lkm_map.ps.gz"},{"id":283174,"rank":3,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/2001/0479/symbols.tar.gz"}],"scale":"24000","projection":"Polyconic projection","country":"United States","state":"California","county":"Riverside County","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -117.5,33.75 ], [ -117.5,33.875 ], [ -117.375,33.875 ], [ -117.375,33.75 ], [ -117.5,33.75 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4afce4b07f02db696778","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":206270,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Weber, F. Harold","contributorId":74764,"corporation":false,"usgs":true,"family":"Weber","given":"F. Harold","affiliations":[],"preferred":false,"id":206271,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":31476,"text":"ofr01394 - 2001 - Implications for the formation of the Hollywood Basin from gravity interpretations of the northern Los Angeles Basin, California","interactions":[],"lastModifiedDate":"2023-06-27T14:47:41.223497","indexId":"ofr01394","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":"2001-394","title":"Implications for the formation of the Hollywood Basin from gravity interpretations of the northern Los Angeles Basin, California","docAbstract":"Gravity data provide insights on the complex tectonic history and structural development of the northern Los Angeles Basin region. The Hollywood basin appears to be a long (> 12 km), narrow (up to 2 km wide) trough lying between the Santa Monica Mountains and the Wilshire arch. In the deepest parts of the Hollywood basin, the modeled average thickness ranges from roughly 250 m if filled with only Quaternary sediments to approximately 600 m if Pliocene sediments are also present. Interpretations of conflicting drill hole data force us to consider both these scenarios. Because of the marked density contrast between the dense Santa Monica Mountains and the low-density sediments in the Los Angeles Basin, the gravity method is particularly useful in mapping the maximum displacement along the Santa Monica-Hollywood-Raymond fault zone. The gravity-defined Santa Monica–Hollywood fault zone deviates, in places, from the mapped active fault and fold scarps located with boreholes and trenching and by geomorphological mapping by Dolan and others (1997). Our models suggest that the Santa Monica–Hollywood fault zone dips northward approximately 63°. Three structural models are considered for the origin of the Hollywood basin: pull-apart basin, flexural basin, and a basin related to a back limb of a major fold. Although our preferred structural model involves flexure, the available geologic and geophysical data do not preclude contributions to the deepening of the basin from one or both of the other two models.\n\nOf particular interest is that the distribution of red-tagged buildings and structures damaged by the Northridge earthquake has a strong spatial correlation with the axis of the Hollywood basin defined by the gravity data. Several explanations for this correlation are explored, but two preferred geologic factors for the amplification of ground motion besides local site effects are (1) focussing of energy by a fault along the axis of the Hollywood basin and (2) focussing effects related to differential refraction of seismic rays across the basin.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr01394","usgsCitation":"Hildenbrand, T.G., Davidson, J.G., Ponti, D.J., and Langenheim, V., 2001, Implications for the formation of the Hollywood Basin from gravity interpretations of the northern Los Angeles Basin, California: U.S. Geological Survey Open-File Report 2001-394, 24 p., https://doi.org/10.3133/ofr01394.","productDescription":"24 p.","numberOfPages":"27","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true},{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":59790,"rank":3,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2001/0394/pdf/of01-394.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":160174,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/2001/0394/report-thumb.jpg"},{"id":2631,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2001/0394/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"California","otherGeospatial":"Los Angeles Basin","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -118.5,33.666667 ], [ -118.5,34.166667 ], [ -118.0,34.166667 ], [ -118.0,33.666667 ], [ -118.5,33.666667 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a04e4b07f02db5f84c5","contributors":{"authors":[{"text":"Hildenbrand, Thomas G.","contributorId":61787,"corporation":false,"usgs":true,"family":"Hildenbrand","given":"Thomas","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":206091,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Davidson, Jeffrey G.","contributorId":35367,"corporation":false,"usgs":true,"family":"Davidson","given":"Jeffrey","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":206089,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ponti, Daniel J. 0000-0002-2437-5144 dponti@usgs.gov","orcid":"https://orcid.org/0000-0002-2437-5144","contributorId":1020,"corporation":false,"usgs":true,"family":"Ponti","given":"Daniel","email":"dponti@usgs.gov","middleInitial":"J.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":206088,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"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":206090,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":31508,"text":"ofr01463 - 2001 - Results of chemical and stable isotopic analyses of water samples collected in the Patagonia Mountains, southern Arizona","interactions":[],"lastModifiedDate":"2012-02-02T00:09:14","indexId":"ofr01463","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":"2001-463","title":"Results of chemical and stable isotopic analyses of water samples collected in the Patagonia Mountains, southern Arizona","docAbstract":"Water samples were collected in the Patagonia Mountains in February, 1997. Most of the samples were collected from portals of abandoned mines, or from stream drainages immediately downstream from abandoned mines. Most of the samples have low pH (<4) and high total dissolved solids (> 1000 mg/L). Anion composition of the water samples is dominated by sulfate, while cation compositions range from calcium-dominated to mixed calcium-magnesium or calcium-sodium-dominated waters. Metals such as iron, manganese, copper, zinc, and aluminum contribute a significant portion (>10%) of the cation content to the water samples. Because of the low pH?s, protons contribute up to several percent of the cation character of the waters in some of the samples. The data are presented in tabular and graphical formats, with descriptions of data quality and brief descriptions of results.","language":"ENGLISH","doi":"10.3133/ofr01463","usgsCitation":"Wanty, R.B., Shanks, W.C., Lamothe, P., Meier, A.L., Lichte, F., Briggs, P.H., and Berger, B.R., 2001, Results of chemical and stable isotopic analyses of water samples collected in the Patagonia Mountains, southern Arizona (Version 1.0): U.S. Geological Survey Open-File Report 2001-463, 20 p., https://doi.org/10.3133/ofr01463.","productDescription":"20 p.","costCenters":[],"links":[{"id":2689,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2001/ofr-01-0463/","linkFileType":{"id":5,"text":"html"}},{"id":161092,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a4ae4b07f02db624a1f","contributors":{"authors":[{"text":"Wanty, Richard B. 0000-0002-2063-6423 rwanty@usgs.gov","orcid":"https://orcid.org/0000-0002-2063-6423","contributorId":443,"corporation":false,"usgs":true,"family":"Wanty","given":"Richard","email":"rwanty@usgs.gov","middleInitial":"B.","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":206245,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Shanks, Wayne C. III","contributorId":53432,"corporation":false,"usgs":true,"family":"Shanks","given":"Wayne","suffix":"III","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":206249,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lamothe, Paul","contributorId":18728,"corporation":false,"usgs":true,"family":"Lamothe","given":"Paul","affiliations":[],"preferred":false,"id":206247,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Meier, A. L.","contributorId":81480,"corporation":false,"usgs":true,"family":"Meier","given":"A.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":206251,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Lichte, Fred","contributorId":56272,"corporation":false,"usgs":true,"family":"Lichte","given":"Fred","email":"","affiliations":[],"preferred":false,"id":206250,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Briggs, Paul H.","contributorId":30973,"corporation":false,"usgs":true,"family":"Briggs","given":"Paul","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":206248,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Berger, Byron R. bberger@usgs.gov","contributorId":1490,"corporation":false,"usgs":true,"family":"Berger","given":"Byron","email":"bberger@usgs.gov","middleInitial":"R.","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":206246,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"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":"<p class=\"textindent\">This web site describes the results of an interdisciplinary environmental characterization of the World Trade Center (WTC) area after September 11, 2001.</p><p class=\"textindent\">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).</p><p class=\"textindent\">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 (<a href=\"http://aviris.jpl.nasa.gov/\" data-mce-href=\"http://aviris.jpl.nasa.gov/\"><span>&nbsp;</span>Link to the AVIRIS JPL data facility)</a>. 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.</p>","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":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true},{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":206175,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Livo, K. Eric 0000-0001-7331-8130","orcid":"https://orcid.org/0000-0001-7331-8130","contributorId":26338,"corporation":false,"usgs":true,"family":"Livo","given":"K. Eric","affiliations":[],"preferred":false,"id":206186,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Plumlee, Geoff","contributorId":16478,"corporation":false,"usgs":true,"family":"Plumlee","given":"Geoff","email":"","affiliations":[],"preferred":false,"id":206183,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Pavri, Betina","contributorId":92916,"corporation":false,"usgs":true,"family":"Pavri","given":"Betina","email":"","affiliations":[],"preferred":false,"id":206194,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Sarture, Chuck","contributorId":74241,"corporation":false,"usgs":true,"family":"Sarture","given":"Chuck","affiliations":[],"preferred":false,"id":206192,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Wilson, Steve","contributorId":57145,"corporation":false,"usgs":true,"family":"Wilson","given":"Steve","email":"","affiliations":[],"preferred":false,"id":206190,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Hageman, Phil 0000-0002-3440-2150","orcid":"https://orcid.org/0000-0002-3440-2150","contributorId":69573,"corporation":false,"usgs":true,"family":"Hageman","given":"Phil","affiliations":[],"preferred":false,"id":206191,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Lamothe, Paul","contributorId":18728,"corporation":false,"usgs":true,"family":"Lamothe","given":"Paul","affiliations":[],"preferred":false,"id":206184,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Vance, J. Sam","contributorId":9692,"corporation":false,"usgs":true,"family":"Vance","given":"J.","email":"","middleInitial":"Sam","affiliations":[],"preferred":false,"id":206180,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"Boardman, Joe","contributorId":30663,"corporation":false,"usgs":true,"family":"Boardman","given":"Joe","email":"","affiliations":[],"preferred":false,"id":206187,"contributorType":{"id":1,"text":"Authors"},"rank":15},{"text":"Brownfield, Isabelle","contributorId":42986,"corporation":false,"usgs":true,"family":"Brownfield","given":"Isabelle","affiliations":[],"preferred":false,"id":206188,"contributorType":{"id":1,"text":"Authors"},"rank":16},{"text":"Gent, Carol","contributorId":11468,"corporation":false,"usgs":true,"family":"Gent","given":"Carol","affiliations":[],"preferred":false,"id":206182,"contributorType":{"id":1,"text":"Authors"},"rank":17},{"text":"Morath, Laurie C.","contributorId":99225,"corporation":false,"usgs":true,"family":"Morath","given":"Laurie","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":206195,"contributorType":{"id":1,"text":"Authors"},"rank":18},{"text":"Taggart, Joseph","contributorId":77413,"corporation":false,"usgs":true,"family":"Taggart","given":"Joseph","affiliations":[],"preferred":false,"id":206193,"contributorType":{"id":1,"text":"Authors"},"rank":19},{"text":"Theodorakos, Peter M. ptheodor@usgs.gov","contributorId":1566,"corporation":false,"usgs":true,"family":"Theodorakos","given":"Peter","email":"ptheodor@usgs.gov","middleInitial":"M.","affiliations":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":206179,"contributorType":{"id":1,"text":"Authors"},"rank":20},{"text":"Adams, Monique madams@usgs.gov","contributorId":1231,"corporation":false,"usgs":true,"family":"Adams","given":"Monique","email":"madams@usgs.gov","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":206178,"contributorType":{"id":1,"text":"Authors"},"rank":21}]}}
,{"id":30990,"text":"wri014255 - 2001 - Concentrations and annual fluxes for selected water-quality constituents from the USGS National Stream Quality Accounting Network (NASQAN) 1996-2000","interactions":[],"lastModifiedDate":"2012-02-02T00:09:00","indexId":"wri014255","displayToPublicDate":"2002-03-01T00:00:00","publicationYear":"2001","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":"2001-4255","title":"Concentrations and annual fluxes for selected water-quality constituents from the USGS National Stream Quality Accounting Network (NASQAN) 1996-2000","docAbstract":"This report contains concentrations and annual mass fluxes (loadings) for a broad range of water-quality constituents measured during 1996-2000 as part of the U.S. Geological Survey National Stream Quality Accounting Network (NASQAN). During this period, NASQAN operated a network of 40-42 stations in four of the largest river basins of the USA: the Colorado, the Columbia, the Mississippi (including the Missouri and Ohio), and the Rio Grande. The report contains surface-water quality data, streamflow data, field measurements (e.g. water temperature and pH), sediment-chemistry data, and quality-assurance data; interpretive products include annual and average loads, regression parameters for models used to estimate loads, sub-basin yield maps, maps depicting percent detections for censored constituents, and diagrams depicting flow-weighted average concentrations. Where possible, a regression model relating concentration to discharge and season was used for flux estimation. The interpretive context provided by annual loads includes identifying source and sink areas for constituents and estimating the loadings to receiving waters, such as reservoirs or the ocean. ","language":"ENGLISH","doi":"10.3133/wri014255","usgsCitation":"Kelly, V.J., Hooper, R.P., Aulenbach, B.T., and Janet, M., 2001, Concentrations and annual fluxes for selected water-quality constituents from the USGS National Stream Quality Accounting Network (NASQAN) 1996-2000: U.S. Geological Survey Water-Resources Investigations Report 2001-4255, Unpaginated, https://doi.org/10.3133/wri014255.","productDescription":"Unpaginated","onlineOnly":"Y","temporalStart":"1996-01-01","temporalEnd":"2000-12-31","costCenters":[{"id":443,"text":"National Stream Quality Accounting Network (NASQAN)","active":false,"usgs":true}],"links":[{"id":160023,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":8437,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/wri/wri014255/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b17e4b07f02db6a6206","contributors":{"authors":[{"text":"Kelly, Valerie J. vjkelly@usgs.gov","contributorId":4161,"corporation":false,"usgs":true,"family":"Kelly","given":"Valerie","email":"vjkelly@usgs.gov","middleInitial":"J.","affiliations":[{"id":518,"text":"Oregon Water Science Center","active":true,"usgs":true}],"preferred":true,"id":204532,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hooper, Richard P.","contributorId":19144,"corporation":false,"usgs":true,"family":"Hooper","given":"Richard","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":204533,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Aulenbach, Brent T. 0000-0003-2863-1288 btaulenb@usgs.gov","orcid":"https://orcid.org/0000-0003-2863-1288","contributorId":3057,"corporation":false,"usgs":true,"family":"Aulenbach","given":"Brent","email":"btaulenb@usgs.gov","middleInitial":"T.","affiliations":[{"id":316,"text":"Georgia Water Science Center","active":true,"usgs":true},{"id":13634,"text":"South Atlantic Water Science Center","active":true,"usgs":true}],"preferred":true,"id":204531,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Janet, Mary","contributorId":62646,"corporation":false,"usgs":true,"family":"Janet","given":"Mary","affiliations":[],"preferred":false,"id":204534,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":31498,"text":"ofr01443 - 2001 - Landslides triggered by Hurricane Mitch in Guatemala -- inventory and discussion","interactions":[],"lastModifiedDate":"2012-02-02T00:09:13","indexId":"ofr01443","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":"2001-443","title":"Landslides triggered by Hurricane Mitch in Guatemala -- inventory and discussion","docAbstract":"The torrential rains that accompanied\r\nHurricane Mitch in October and November\r\nof 1998 triggered thousands of landslides in\r\nthe moderate to steep terrain bordering the\r\nMotagua and Polochic Rivers in eastern\r\nGuatemala. Using aerial photographs taken\r\nbetween January and March 2000 we\r\nmapped all visible landslides larger than\r\nabout 15 m in minimum dimension in a\r\nstudy area of 10,000 km2 encompassing\r\ntwenty 1:50,000-scale topographic map\r\nquadrangles.\r\nRainfall from Hurricane Mitch was\r\nexceptional because it was geographically\r\nwidespread, prolonged over a period of\r\nabout a week, moderate to heavy in intensity,\r\nand occurred at the end of the rainy season\r\nwhen the ground already had a high\r\nmoisture content. As documented in this\r\nreport, this type of rainfall, on saturated or\r\nnearly saturated ground, has the capability to\r\ntrigger both shallow and deep-seated landslides\r\nover a large area.\r\nWe mapped about 11,500 landslides in\r\nthe study area. The mapped landslides were\r\nof two general types: relatively small, translational\r\nand rotational landslides that commonly\r\nmobilized into debris flows and covered\r\nless than several hectares in area (not\r\nincluding flow paths), and large, commonly\r\ntranslational, landslides that sometimes generated\r\ndebris flows and covered between\r\n15 ha and 25 ha (not including flow paths).\r\nThe main concentrations of landslides are on\r\nmoderate-to-steep hillslopes underlain by\r\ndiverse geologic units. For the purpose of\r\ndescribing the mapped landslides, we divided\r\nthe study area into five distinct regions\r\nbased on differing geologic and geomorphic\r\ncharacteristics. These regions include the\r\nupper Polochic valley and surrounding highlands,\r\nthe central Sierra de las Minas, the\r\nhills surrounding La Union and Zacapa, the\r\neastern Sierra de las Minas, and the border\r\nregion with Honduras. All of these areas\r\nreceived between 200 mm and 600 mm of\r\nrain over a 13-day period between October\r\n25 and November 6. The highest rainfall\r\namounts (400 mm to 600 mm) occurred in\r\nthe Upper Polochic valley and surrounding\r\nhighlands and in the central Sierra de las\r\nMinas. The lower rainfall amounts (200 mm\r\nto 400 mm) occurred in the hills surrounding\r\nLa Union, the eastern Sierra de las\r\nMinas, and in the border region with\r\nHonduras. In general, the rainfall received in\r\nthese areas is roughly equivalent to the average\r\nprecipitation received in a 1-year period.\r\nWe used 10-m digital elevation models\r\n(DEMs) generated from contours on two\r\nquadrangles in the central Sierra de las\r\nMinas to create a map showing areas that\r\nwere susceptible to landslides during\r\nHurricane Mitch. To create the Hurricane\r\nMitch susceptibility map, we developed a\r\nsusceptibility threshold equation based on\r\nelevation and gradient. The analysis indicates\r\nthat, at least on two quadrangles, gradients\r\nless than 9? were not susceptible to\r\nlandslides during Hurricane Mitch. The\r\nslope of the line defined by the threshold\r\nequation indicates that less rainfall was\r\nrequired to initiate landslides on steep gradients\r\nthan on shallow gradients. Ninety percent\r\nof the mapped landslides that were triggered\r\nby Hurricane Mitch are within the\r\nsusceptible zone shown on the map. Eightysix\r\npercent of landslides that were mapped\r\nas predating Hurricane Mitch, and all landslides\r\nmapped as postdating Hurricane\r\nMitch, are within the susceptible zone.\r\nWe used LAHARZ software to model the\r\npotential downstream area affected by debris\r\nif a large landslide dam on the Rio La Lima\r\nwere to fail. The model shows that the area\r\naffected would be similar to the area that\r\nwas affected by a debris flow that mobilized\r\nfrom a large landslide along the Rio La\r\nLima during Hurricane Mitch.\r\nThe characteristics of rainfall-triggered\r\nlandslides described in this report can be\r\nused as a partial guide to future landslide\r\nactivity triggered by rainstorms. On the\r\nbasis of existing data, hazardous areas\r\ninclude: moderate to steep hillslopes and\r\n","language":"ENGLISH","doi":"10.3133/ofr01443","usgsCitation":"Bucknam, R.C., Coe, J.A., Chavarria, M.M., Godt, J.W., Tarr, A.C., Bradley, L., Rafferty, S.A., Hancock, D., Dart, R.L., and Johnson, M.L., 2001, Landslides triggered by Hurricane Mitch in Guatemala -- inventory and discussion (Version 1.0): U.S. Geological Survey Open-File Report 2001-443, 38 p., https://doi.org/10.3133/ofr01443.","productDescription":"38 p.","costCenters":[],"links":[{"id":161123,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":2682,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2001/ofr-01-0443/","linkFileType":{"id":5,"text":"html"}}],"edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b1be4b07f02db6a91b2","contributors":{"authors":[{"text":"Bucknam, Robert C.","contributorId":104490,"corporation":false,"usgs":true,"family":"Bucknam","given":"Robert","email":"","middleInitial":"C.","affiliations":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"preferred":false,"id":206212,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Coe, Jeffrey A. 0000-0002-0842-9608 jcoe@usgs.gov","orcid":"https://orcid.org/0000-0002-0842-9608","contributorId":1333,"corporation":false,"usgs":true,"family":"Coe","given":"Jeffrey","email":"jcoe@usgs.gov","middleInitial":"A.","affiliations":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true},{"id":309,"text":"Geology and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":206206,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Chavarria, Manuel Mota","contributorId":39024,"corporation":false,"usgs":true,"family":"Chavarria","given":"Manuel","email":"","middleInitial":"Mota","affiliations":[],"preferred":false,"id":206209,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Godt, Jonathan W. 0000-0002-8737-2493 jgodt@usgs.gov","orcid":"https://orcid.org/0000-0002-8737-2493","contributorId":1166,"corporation":false,"usgs":true,"family":"Godt","given":"Jonathan","email":"jgodt@usgs.gov","middleInitial":"W.","affiliations":[{"id":508,"text":"Office of the AD Hazards","active":true,"usgs":true},{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"preferred":true,"id":206204,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Tarr, Arthur C. atarr@usgs.gov","contributorId":1925,"corporation":false,"usgs":true,"family":"Tarr","given":"Arthur","email":"atarr@usgs.gov","middleInitial":"C.","affiliations":[],"preferred":true,"id":206207,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Bradley, Lee-Ann bradley@usgs.gov","contributorId":1141,"corporation":false,"usgs":true,"family":"Bradley","given":"Lee-Ann","email":"bradley@usgs.gov","affiliations":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"preferred":false,"id":206203,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Rafferty, Sharon A.","contributorId":33360,"corporation":false,"usgs":true,"family":"Rafferty","given":"Sharon","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":206208,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Hancock, Dean","contributorId":73652,"corporation":false,"usgs":true,"family":"Hancock","given":"Dean","affiliations":[],"preferred":false,"id":206211,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Dart, Richard L. dart@usgs.gov","contributorId":1209,"corporation":false,"usgs":true,"family":"Dart","given":"Richard","email":"dart@usgs.gov","middleInitial":"L.","affiliations":[],"preferred":true,"id":206205,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Johnson, Margo L.","contributorId":54626,"corporation":false,"usgs":true,"family":"Johnson","given":"Margo","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":206210,"contributorType":{"id":1,"text":"Authors"},"rank":10}]}}
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