{"pageNumber":"1158","pageRowStart":"28925","pageSize":"25","recordCount":46734,"records":[{"id":66835,"text":"i2687 - 2000 - Isostatic gravity map of the Battle Mountain 30 x 60 minute quadrangle, north central Nevada","interactions":[],"lastModifiedDate":"2022-07-07T21:06:29.116342","indexId":"i2687","displayToPublicDate":"2000-06-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":320,"text":"IMAP","code":"I","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2687","subseriesTitle":"GIS","title":"Isostatic gravity map of the Battle Mountain 30 x 60 minute quadrangle, north central Nevada","docAbstract":"<p>Gravity investigations of the Battle Mountain 30 x 60 minute quadrangle were begun as part of an interagency effort by the U.S. Geological Survey (USGS) and the Bureau of Land Management to help characterize the geology, mineral resources, hydrology, and ecology of the Humboldt River Basin in north-central Nevada. The Battle Mountain quadrangle is located between 40°30' and 41°N. lat. and 116° and 117°W. long. This isostatic gravity map of the Battle Mountain quadrangle was prepared from data from about 1,180 gravity stations. Most of these data are publicly available on a CD-ROM of gravity data of Nevada (Ponce, 1997) and in a published report (Jewel and others, 1997). Data from about 780 gravity stations were collected by the U.S. Geological Survey since 1996; data from about 245 of these are unpublished (USGS, unpub. data, 1998). Data collected from the 400 gravity stations prior to 1996 are a subset of a gravity data compilation of the Winnemucca 1:250,000-scale quadrangle described in great detail by Wagini (1985) and Sikora (1991). This detailed information includes gravity meters used, dates of collection, sources, descriptions of base stations, plots of data, and a list of principal facts. A digital version of the entire data set for the Battle Mountain quadrangle is available on the World Wide Web at: http://wrgis.wr.usgs.gov/docs/gump/gump.html</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/i2687","usgsCitation":"Ponce, D., and Morin, R.L., 2000, Isostatic gravity map of the Battle Mountain 30 x 60 minute quadrangle, north central Nevada (Online Version 1.0): U.S. Geological Survey IMAP 2687, 1 Plate: 51.32 × 27.78 inches, https://doi.org/10.3133/i2687.","productDescription":"1 Plate: 51.32 × 27.78 inches","costCenters":[{"id":647,"text":"Western Earth Surface Processes","active":false,"usgs":true}],"links":[{"id":188658,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":9393,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/imap/i2687/","linkFileType":{"id":5,"text":"html"}},{"id":110080,"rank":700,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_26853.htm","linkFileType":{"id":5,"text":"html"},"description":"26853"}],"scale":"100000","country":"United States","state":"Nevada","otherGeospatial":"Battle Mountain 30 X 60 minute quadrangle","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -117,40.5 ], [ -117,41 ], [ -116,41 ], [ -116,40.5 ], [ -117,40.5 ] ] ] } } ] }","edition":"Online Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a49e4b07f02db624059","contributors":{"authors":[{"text":"Ponce, D. A. 0000-0003-4785-7354","orcid":"https://orcid.org/0000-0003-4785-7354","contributorId":104019,"corporation":false,"usgs":true,"family":"Ponce","given":"D. A.","affiliations":[],"preferred":false,"id":275161,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Morin, R. L.","contributorId":95484,"corporation":false,"usgs":true,"family":"Morin","given":"R.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":275160,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70023199,"text":"70023199 - 2000 - Comparison of phase velocities from array measurements of Rayleigh waves associated with microtremor and results calculated from borehole shear-wave velocity profiles","interactions":[],"lastModifiedDate":"2014-01-21T15:09:17","indexId":"70023199","displayToPublicDate":"2000-06-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1135,"text":"Bulletin of the Seismological Society of America","onlineIssn":"1943-3573","printIssn":"0037-1106","active":true,"publicationSubtype":{"id":10}},"title":"Comparison of phase velocities from array measurements of Rayleigh waves associated with microtremor and results calculated from borehole shear-wave velocity profiles","docAbstract":"Shear-wave velocities (V<sub>S</sub>) are widely used for earthquake ground-motion site characterization. V<sub>S</sub> data are now largely obtained using borehole methods. Drilling holes, however, is expensive. Nonintrusive surface methods are inexpensive for obtaining V<sub>S</sub> information, but not many comparisons with direct borehole measurements have been published. Because different assumptions are used in data interpretation of each surface method and public safety is involved in site characterization for engineering structures, it is important to validate the surface methods by additional comparisons with borehole measurements. We compare results obtained from a particular surface method (array measurement of surface waves associated with microtremor) with results obtained from borehole methods. Using a 10-element nested-triangular array of 100-m aperture, we measured surface-wave phase velocities at two California sites, Garner Valley near Hemet and Hollister Municipal Airport. The Garner Valley site is located at an ancient lake bed where water-saturated sediment overlies decomposed granite on top of granite bedrock. Our array was deployed at a location where seismic velocities had been determined to a depth of 500 m by borehole methods. At Hollister, where the near-surface sediment consists of clay, sand, and gravel, we determined phase velocities using an array located close to a 60-m deep borehole where downhole velocity logs already exist. Because we want to assess the measurements uncomplicated by uncertainties introduced by the inversion process, we compare our phase-velocity results with the borehole V<sub>S</sub> depth profile by calculating fundamental-mode Rayleigh-wave phase velocities from an earth model constructed from the borehole data. For wavelengths less than ~2 times of the array aperture at Garner Valley, phase-velocity results from array measurements agree with the calculated Rayleigh-wave velocities to better than 11%. Measurement errors become larger for wavelengths 2 times greater than the array aperture. At Hollister, the measured phase velocity at 3.9 Hz (near the upper edge of the microtremor frequency band) is within 20% of the calculated Rayleigh-wave velocity. Because shear-wave velocity is the predominant factor controlling Rayleigh-wave phase velocities, the comparisons suggest that this nonintrusive method can provide V<sub>S</sub> information adequate for ground-motion estimation.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Bulletin of the Seismological Society of America","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Seismological Society of America","doi":"10.1785/0119980186","issn":"00371106","usgsCitation":"Liu, H., Boore, D.M., Joyner, W.B., Oppenheimer, D.H., Warrick, R.E., Zhang, W., Hamilton, J.C., and Brown, L.T., 2000, Comparison of phase velocities from array measurements of Rayleigh waves associated with microtremor and results calculated from borehole shear-wave velocity profiles: Bulletin of the Seismological Society of America, v. 90, no. 3, p. 666-678, https://doi.org/10.1785/0119980186.","productDescription":"13 p.","startPage":"666","endPage":"678","numberOfPages":"13","costCenters":[],"links":[{"id":233411,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":281345,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1785/0119980186"}],"scale":"24000","country":"United States","state":"California","city":"Hemet;Hollister","otherGeospatial":"Garner Valley","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -116.709005,33.62999 ], [ -116.709005,33.677531 ], [ -116.646886,33.677531 ], [ -116.646886,33.62999 ], [ -116.709005,33.62999 ] ] ] } } ] }","volume":"90","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f880e4b0c8380cd4d148","contributors":{"authors":[{"text":"Liu, Hsi-Ping","contributorId":82705,"corporation":false,"usgs":true,"family":"Liu","given":"Hsi-Ping","email":"","affiliations":[],"preferred":false,"id":396812,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Boore, David M. boore@usgs.gov","contributorId":2509,"corporation":false,"usgs":true,"family":"Boore","given":"David","email":"boore@usgs.gov","middleInitial":"M.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":false,"id":396806,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Joyner, William B.","contributorId":39786,"corporation":false,"usgs":true,"family":"Joyner","given":"William","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":396808,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Oppenheimer, David H. oppen@usgs.gov","contributorId":1112,"corporation":false,"usgs":true,"family":"Oppenheimer","given":"David","email":"oppen@usgs.gov","middleInitial":"H.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":396805,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Warrick, Richard E.","contributorId":56228,"corporation":false,"usgs":true,"family":"Warrick","given":"Richard","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":396810,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Zhang, Wenbo","contributorId":54235,"corporation":false,"usgs":true,"family":"Zhang","given":"Wenbo","email":"","affiliations":[],"preferred":false,"id":396809,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Hamilton, John C. jhamilton@usgs.gov","contributorId":4202,"corporation":false,"usgs":true,"family":"Hamilton","given":"John","email":"jhamilton@usgs.gov","middleInitial":"C.","affiliations":[],"preferred":true,"id":396807,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Brown, Leo T.","contributorId":75727,"corporation":false,"usgs":true,"family":"Brown","given":"Leo","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":396811,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":5296,"text":"fs04000 - 2000 - US GeoData Digital Elevation Models","interactions":[{"subject":{"id":5295,"text":"fs10296 - 1997 - US GeoData digital elevation models","indexId":"fs10296","publicationYear":"1997","noYear":false,"title":"US GeoData digital elevation models"},"predicate":"SUPERSEDED_BY","object":{"id":5296,"text":"fs04000 - 2000 - US GeoData Digital Elevation Models","indexId":"fs04000","publicationYear":"2000","noYear":false,"title":"US GeoData Digital Elevation Models"},"id":1}],"lastModifiedDate":"2012-03-16T17:16:05","indexId":"fs04000","displayToPublicDate":"2000-06-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":313,"text":"Fact Sheet","code":"FS","onlineIssn":"2327-6932","printIssn":"2327-6916","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"040-00","title":"US GeoData Digital Elevation Models","docAbstract":"Digital elevation model (DEM) data are arrays of regularly spaced elevation values referenced horizontally either to a Universal Transverse Mercator (UTM) projection or to a geographic coordinate system. The grid cells are spaced at regular intervals along south to north profiles that are ordered from west to east. The U.S. Geological Survey (USGS) produces five primary types of elevation data: 7.5-minute DEM, 30-minute DEM, 1-degree DEM, 7.5-minute Alaska DEM, and 15-minute Alaska DEM.","language":"ENGLISH","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/fs04000","usgsCitation":"Water Resources Division, U.S. Geological Survey, 2000, US GeoData Digital Elevation Models: U.S. Geological Survey Fact Sheet 040-00, 2 p., https://doi.org/10.3133/fs04000.","productDescription":"2 p.","costCenters":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"links":[{"id":117799,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/fs/2000/0040/report-thumb.jpg"},{"id":31995,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/fs/2000/0040/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a29e4b07f02db611ae2","contributors":{"authors":[{"text":"Water Resources Division, U.S. Geological Survey","contributorId":128075,"corporation":true,"usgs":false,"organization":"Water Resources Division, U.S. Geological Survey","id":528465,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":32274,"text":"ofr99504 - 2000 - Landslides in Alameda County, California: A digital database extracted from preliminary photointerpretation maps of surficial deposits by T.H. Nilsen in USGS Open-File Report 75-277","interactions":[],"lastModifiedDate":"2022-06-10T22:03:12.463733","indexId":"ofr99504","displayToPublicDate":"2000-06-01T00:00:00","publicationYear":"2000","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":"99-504","title":"Landslides in Alameda County, California: A digital database extracted from preliminary photointerpretation maps of surficial deposits by T.H. Nilsen in USGS Open-File Report 75-277","docAbstract":"All or part of 25 7.5-minute quadrangles identifying 8465 landslides - largely slow-moving slides and earth flows - in Alameda County, California, have been converted to a digital-map database, compiled at 1:24,000 scale and plotted at 1:62,500 scale, that can be acquired from the U.S. Geological Survey over the Internet or on magnetic tape.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr99504","usgsCitation":"Roberts, S., Roberts, M., and Brennan, E.M., 2000, Landslides in Alameda County, California: A digital database extracted from preliminary photointerpretation maps of surficial deposits by T.H. Nilsen in USGS Open-File Report 75-277 (Version 1.0): U.S. Geological Survey Open-File Report 99-504, Report: 20 p.; Database & GIS Files, https://doi.org/10.3133/ofr99504.","productDescription":"Report: 20 p.; Database & GIS Files","additionalOnlineFiles":"Y","costCenters":[{"id":647,"text":"Western Earth Surface Processes","active":false,"usgs":true}],"links":[{"id":163535,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":109904,"rank":700,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_23299.htm","linkFileType":{"id":5,"text":"html"},"description":"23299"},{"id":12103,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/1999/of99-504/","linkFileType":{"id":5,"text":"html"}}],"scale":"62500","projection":"Universal Transverse Mercator","country":"United States","state":"California","county":"Alameda County","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -122.75848388671875,\n              37.391981943533544\n            ],\n            [\n              -122.47833251953125,\n              37.391981943533544\n            ],\n            [\n              -122.47833251953125,\n              37.792422407988575\n            ],\n            [\n              -122.75848388671875,\n              37.792422407988575\n            ],\n            [\n              -122.75848388671875,\n              37.391981943533544\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b1de4b07f02db6a9b06","contributors":{"authors":[{"text":"Roberts, Sebastian","contributorId":52209,"corporation":false,"usgs":true,"family":"Roberts","given":"Sebastian","email":"","affiliations":[],"preferred":false,"id":208139,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Roberts, Michelle A.","contributorId":20798,"corporation":false,"usgs":true,"family":"Roberts","given":"Michelle A.","affiliations":[],"preferred":false,"id":208138,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Brennan, Eileen M.","contributorId":96316,"corporation":false,"usgs":true,"family":"Brennan","given":"Eileen","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":208140,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":4862,"text":"ds60 - 2000 - U.S. Geological Survey world petroleum assessment 2000: Description and results","interactions":[],"lastModifiedDate":"2022-12-02T19:15:10.67101","indexId":"ds60","displayToPublicDate":"2000-06-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":310,"text":"Data Series","code":"DS","onlineIssn":"2327-638X","printIssn":"2327-0271","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"60","title":"U.S. Geological Survey world petroleum assessment 2000: Description and results","docAbstract":"The set of 4 CD-ROM discs, documents the U.S. Geological Survey World Petroleum Assessment 2000 and includes estimates of the quantities of conventional oil, gas, and natural gas liquids outside the United States that have the potential to be added to reserves in the next 30 years (1995 to 2025). Two components, undiscovered resources and reserve growth, are estimated. One hundred and forty nine total petroleum systems and two hundred and forty six assessment units (subdivisions of total petroleum systems) were assessed. The supporting maps, data, text and tables produced by the World Energy Assessment Team during this five-year project (1995-2000) are included in the set.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ds60","usgsCitation":"USGS World Energy Assessment Team, 2000, U.S. Geological Survey world petroleum assessment 2000: Description and results (Version 1.0): U.S. Geological Survey Data Series 60, HTML Document; CD-ROM, https://doi.org/10.3133/ds60.","productDescription":"HTML Document; CD-ROM","onlineOnly":"N","additionalOnlineFiles":"Y","costCenters":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"links":[{"id":139960,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":11253,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/dds/dds-060/","linkFileType":{"id":5,"text":"html"}},{"id":403212,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_27395.htm","linkFileType":{"id":5,"text":"html"}}],"edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a2be4b07f02db612ed7","contributors":{"authors":[{"text":"USGS World Energy Assessment Team","contributorId":128198,"corporation":true,"usgs":false,"organization":"USGS World Energy Assessment Team","id":528390,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70156519,"text":"70156519 - 2000 - A comparison of the IGBP DISCover and University of Maryland 1 km global land cover products","interactions":[],"lastModifiedDate":"2015-08-24T11:49:51","indexId":"70156519","displayToPublicDate":"2000-06-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2068,"text":"International Journal of Remote Sensing","active":true,"publicationSubtype":{"id":10}},"title":"A comparison of the IGBP DISCover and University of Maryland 1 km global land cover products","docAbstract":"<p><span>Two global 1 km land cover data sets derived from 1992-1993 Advanced Very High Resolution Radiometer (AVHRR) data are currently available, the International Geosphere-Biosphere Programme Data and Information System (IGBP-DIS) DISCover and the University of Maryland (UMd) 1 km land cover maps. This paper makes a preliminary comparison of the methodologies and results of the two products. The DISCover methodology employed an unsupervised clustering classification scheme on a per-continent basis using 12 monthly maximum NDVI composites as inputs. The UMd approach employed a supervised classification tree method in which temporal metrics derived from all AVHRR bands and the NDVI were used to predict class membership across the entire globe. The DISCover map uses the IGBP classification scheme, while the UMd map employs a modified IGBP scheme minus the classes of permanent wetlands, cropland/natural vegetation mosaic and ice and snow. Global area totals of aggregated vegetation types are very similar and have a per-pixel agreement of 74%. For tall versus short/no vegetation, the per-pixel agreement is 84%. For broad vegetation types, core areas map similarly, while transition zones around core areas differ significantly. This results in high regional variability between the maps. Individual class agreement between the two 1 km maps is 49%. Comparison of the maps at a nominal 0.5 resolution with two global ground-based maps shows an improvement of thematic concurrency of 46% when viewing average class agreement. The absence of the cropland mosaic class creates a difficulty in comparing the maps, due to its significant extent in the DISCover map. The DISCover map, in general, has more forest, while the UMd map has considerably more area in the intermediate tree cover classes of woody savanna/ woodland and savanna/wooded grassland.</span></p>","language":"English","publisher":"Taylor & Francis","doi":"10.1080/014311600210218","usgsCitation":"Hansen, M., and Reed, B., 2000, A comparison of the IGBP DISCover and University of Maryland 1 km global land cover products: International Journal of Remote Sensing, v. 21, no. 6-7, p. 1365-1373, https://doi.org/10.1080/014311600210218.","productDescription":"9 p.","startPage":"1365","endPage":"1373","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":307230,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"21","issue":"6-7","noUsgsAuthors":false,"publicationDate":"2010-11-25","publicationStatus":"PW","scienceBaseUri":"55dc4028e4b0518e354d10cf","contributors":{"authors":[{"text":"Hansen, M.C.","contributorId":69690,"corporation":false,"usgs":false,"family":"Hansen","given":"M.C.","email":"","affiliations":[{"id":33433,"text":"University of Maryland, College Park","active":true,"usgs":false}],"preferred":false,"id":569372,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Reed, B.","contributorId":62352,"corporation":false,"usgs":true,"family":"Reed","given":"B.","email":"","affiliations":[],"preferred":false,"id":569373,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":5330,"text":"fs03700 - 2000 - U.S. Geological Survey World Wide Web Information","interactions":[{"subject":{"id":5330,"text":"fs03700 - 2000 - U.S. Geological Survey World Wide Web Information","indexId":"fs03700","publicationYear":"2000","noYear":false,"title":"U.S. Geological Survey World Wide Web Information"},"predicate":"SUPERSEDED_BY","object":{"id":53167,"text":"fs05503 - 2003 - U.S. Geological Survey World Wide Web Information","indexId":"fs05503","publicationYear":"2003","noYear":false,"title":"U.S. Geological Survey World Wide Web Information"},"id":1}],"supersededBy":{"id":53167,"text":"fs05503 - 2003 - U.S. Geological Survey World Wide Web Information","indexId":"fs05503","publicationYear":"2003","noYear":false,"title":"U.S. Geological Survey World Wide Web Information"},"lastModifiedDate":"2015-05-19T09:07:24","indexId":"fs03700","displayToPublicDate":"2000-06-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":313,"text":"Fact Sheet","code":"FS","onlineIssn":"2327-6932","printIssn":"2327-6916","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"037-00","title":"U.S. Geological Survey World Wide Web Information","docAbstract":"<p>The U.S. Geological Survey (USGS) invites you to explore an earth science virtual library of digital information, publications, and data. The USGS World Wide Web sites offer an array of information that reflects scientific research and monitoring programs conducted in the areas of natural hazards, environmental resources, and cartog-raphy. This list provides gateways to access a cross section of the digital information on the USGS World Wide Web sites.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/fs03700","usgsCitation":"Water Resources Division, U.S. Geological Survey, 2000, U.S. Geological Survey World Wide Web Information (Superseded by FS 033-01 & FS 055-03): U.S. Geological Survey Fact Sheet 037-00, 2 p., https://doi.org/10.3133/fs03700.","productDescription":"2 p.","numberOfPages":"2","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":139665,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/fs03700.jpg"},{"id":13242,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/fs/2000/0037/","linkFileType":{"id":5,"text":"html"}},{"id":285365,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/fs/0037-00/report.pdf"}],"edition":"Superseded by FS 033-01 & FS 055-03","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49e3e4b07f02db5e57a2","contributors":{"authors":[{"text":"Water Resources Division, U.S. Geological Survey","contributorId":128075,"corporation":true,"usgs":false,"organization":"Water Resources Division, U.S. Geological Survey","id":528497,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":23677,"text":"ofr0079 - 2000 - Hydrologic and water-quality data for ground water along the Milk River Valley, north-central to northeastern Montana","interactions":[],"lastModifiedDate":"2012-02-02T00:08:18","indexId":"ofr0079","displayToPublicDate":"2000-06-01T00:00:00","publicationYear":"2000","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":"2000-79","title":"Hydrologic and water-quality data for ground water along the Milk River Valley, north-central to northeastern Montana","language":"ENGLISH","publisher":"U.S. Dept. of the Interior, U.S. Geological Survey ;\r\nBranch of Information Services [distributor],","doi":"10.3133/ofr0079","issn":"0094-9140","usgsCitation":"Lawlor, S.M., 2000, Hydrologic and water-quality data for ground water along the Milk River Valley, north-central to northeastern Montana: U.S. Geological Survey Open-File Report 2000-79, iv, 24 p. :ill., maps ;28 cm., https://doi.org/10.3133/ofr0079.","productDescription":"iv, 24 p. :ill., maps ;28 cm.","costCenters":[],"links":[{"id":157474,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/2000/0079/report-thumb.jpg"},{"id":19477,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2000/0079/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":52933,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2000/0079/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a29e4b07f02db61173f","contributors":{"authors":[{"text":"Lawlor, Sean M. 0000-0001-5988-7548 slawlor@usgs.gov","orcid":"https://orcid.org/0000-0001-5988-7548","contributorId":1895,"corporation":false,"usgs":true,"family":"Lawlor","given":"Sean","email":"slawlor@usgs.gov","middleInitial":"M.","affiliations":[{"id":685,"text":"Wyoming-Montana Water Science Center","active":false,"usgs":true}],"preferred":true,"id":190531,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70210135,"text":"70210135 - 2000 - Recent tectonics of the Blanco Ridge, eastern blanco transform fault zone","interactions":[],"lastModifiedDate":"2020-05-14T20:51:44.248607","indexId":"70210135","displayToPublicDate":"2000-05-14T15:41:05","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2668,"text":"Marine Geophysical Research","active":true,"publicationSubtype":{"id":10}},"title":"Recent tectonics of the Blanco Ridge, eastern blanco transform fault zone","docAbstract":"<p><span>Bathymetric, hydro-acoustic, seismic, submersible, and gravity data are used to investigate the active tectonics of the eastern Blanco Transform Fault Zone (BTFZ). The eastern BTFZ is dominated by the ∼150&nbsp;km long transform-parallel Blanco Ridge (BR) which is a right-lateral strike-slip fault bordered to the east and west by the Gorda and Cascadia Depressions. Acoustic locations, fault-parameter information, and slip vector estimates of 43 earthquakes (</span><i>M</i><span>&nbsp;</span><sub>w</sub><span>≥3.8) that occurred along the eastern BTFZ over the last 5 years reveal that the Blanco Ridge is a high-angle right-lateral strike-slip fault, with a small component of dip-slip motion, where the Juan de Fuca plate is the hanging wall relative to the Pacific plate. Furthermore, the Cascadia and Gorda basins are undergoing normal faulting with extension predominantly oblique to the transform trend. Seafloor submersible observations agree with previous hypotheses that the active transform fault trace is the elongate basin that runs the length of the BR summit. Brecciated and undeformed basalt, diabase, and gabbro samples were collected at the four submersible survey sites along the Blanco Ridge. These petrologic samples indicate the Blanco Ridge is composed of an ocean crustal sequence that has been uplifted and highly fractured. The petrologic samples also appear to show an increase in elevation of the crustal section from east to west along the Blanco Ridge, with gabbros exposed at a shallower depth farther west along the southern (Pacific plate side) BR ridge flank. Further supporting evidence for BR uplift exists in the seismic reflection profiles across the BR showing uplift of turbidite sequences along the north and south ridge base, and gravity and magnetics profiles that indicate possible basement uplift and a low-density zone centered on the ridge's Pacific plate side. The BR formation mechanism preferred here is first, uplift achieved partially through strike-slip motion (with a small dip-slip component). Second, seawater penetration along the fault into the lower crust upper mantle, which then enhanced formation and intrusion of a mantle-derived serpentinized-peridotite diapir into the shallow ocean crust, causing further uplift along the fault.</span></p>","language":"English","publisher":"Springer Nature","doi":"10.1023/A:1026545910893","usgsCitation":"Dziak, R., Fox, C., Embley, R., Nabelek, J., Braunmiller, J., and Koski, R.A., 2000, Recent tectonics of the Blanco Ridge, eastern blanco transform fault zone: Marine Geophysical Research, v. 21, p. 423-450, https://doi.org/10.1023/A:1026545910893.","productDescription":"28 p.","startPage":"423","endPage":"450","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":374857,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"21","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Dziak, Robert","contributorId":217088,"corporation":false,"usgs":false,"family":"Dziak","given":"Robert","affiliations":[{"id":39567,"text":"NOAA/PMEL","active":true,"usgs":false}],"preferred":false,"id":789245,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fox, C.G.","contributorId":60315,"corporation":false,"usgs":true,"family":"Fox","given":"C.G.","email":"","affiliations":[],"preferred":false,"id":789246,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Embley, R.","contributorId":43966,"corporation":false,"usgs":true,"family":"Embley","given":"R.","email":"","affiliations":[],"preferred":false,"id":789247,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Nabelek, J.L.","contributorId":27316,"corporation":false,"usgs":true,"family":"Nabelek","given":"J.L.","email":"","affiliations":[],"preferred":false,"id":789248,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Braunmiller, Jochen","contributorId":224718,"corporation":false,"usgs":false,"family":"Braunmiller","given":"Jochen","affiliations":[],"preferred":false,"id":789249,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Koski, Randolph A. rkoski@usgs.gov","contributorId":2949,"corporation":false,"usgs":true,"family":"Koski","given":"Randolph","email":"rkoski@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":true,"id":789250,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70156747,"text":"70156747 - 2000 - Basin level statistical properties of topographic index for North America","interactions":[],"lastModifiedDate":"2015-08-27T11:41:46","indexId":"70156747","displayToPublicDate":"2000-05-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":664,"text":"Advances in Water Resources","active":true,"publicationSubtype":{"id":10}},"title":"Basin level statistical properties of topographic index for North America","docAbstract":"<div class=\"abstract svAbstract \" data-etype=\"ab\">\n<p id=\"\">For land&ndash;atmosphere interaction studies several&nbsp;<i>Topmodel</i>&nbsp;based land-surface schemes have been proposed. For the implementation of such models over the continental (and global) scales, statistical properties of the topographic indices are derived using GTOPO30 (30-arc-second; 1 km resolution) DEM data for North America. River basins and drainage network extracted using this dataset are overlaid on computed topographic indices for the continent and statistics are extracted for each basin. A total of 5020 basins are used to cover the entire continent with an average basin size of 3640 km<span id=\"mmlsi2\" class=\"mathmlsrc\"><span class=\"formulatext stixSupport mathImg\" title=\"Click to view the MathML source\" data-mathurl=\"/science?_ob=MathURL&amp;_method=retrieve&amp;_eid=1-s2.0-S0309170899000494&amp;_mathId=si2.gif&amp;_user=111111111&amp;_pii=S0309170899000494&amp;_rdoc=1&amp;_issn=03091708&amp;md5=5fef45e445874a36c60ec34c6fa0229d\"><sup>2</sup></span></span>. Typically, the first three statistical moments of the distribution of the topographic indices for each basin are required for modeling. Departures of these statistical moments to those obtained using high resolution data have important implications for the prediction of soil-moisture states in the hydrologic models and consequently on the dynamics of the land&ndash;atmosphere interaction. It is found that a simple relationship between the statistics obtained at the 1 km and 90 m resolutions can be developed. The mean, standard deviation, skewness, L-scale and L-skewness all show approximate linear relationships between the two resolutions making it possible to use the moment estimates from the GTOPO30 data for hydrologic studies by applying a simple linear downscaling scheme. This significantly increases the utility value of the GTOPO30 datasets for hydrologic modeling studies.</p>\n<p>&nbsp;</p>\n</div>","language":"English","publisher":"Elsevier","doi":"10.1016/S0309-1708(99)00049-4","usgsCitation":"Kumar, P., Verdin, K.L., and Greenlee, S.K., 2000, Basin level statistical properties of topographic index for North America: Advances in Water Resources, v. 23, no. 6, p. 571-578, https://doi.org/10.1016/S0309-1708(99)00049-4.","productDescription":"8 p.","startPage":"571","endPage":"578","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":307617,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"23","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"55e034b2e4b0f42e3d040df0","contributors":{"authors":[{"text":"Kumar, Praveen","contributorId":81405,"corporation":false,"usgs":true,"family":"Kumar","given":"Praveen","affiliations":[],"preferred":false,"id":570351,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Verdin, Kristine L. 0000-0002-6114-4660 kverdin@usgs.gov","orcid":"https://orcid.org/0000-0002-6114-4660","contributorId":3070,"corporation":false,"usgs":true,"family":"Verdin","given":"Kristine","email":"kverdin@usgs.gov","middleInitial":"L.","affiliations":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true},{"id":191,"text":"Colorado Water Science Center","active":true,"usgs":true}],"preferred":true,"id":570352,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Greenlee, Susan K. sgreenlee@usgs.gov","contributorId":3326,"corporation":false,"usgs":true,"family":"Greenlee","given":"Susan","email":"sgreenlee@usgs.gov","middleInitial":"K.","affiliations":[],"preferred":true,"id":570353,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":27372,"text":"wri994184 - 2000 - Laboratory performance in the Sediment Laboratory Quality-Assurance Project, 1996-98","interactions":[],"lastModifiedDate":"2016-07-25T14:33:39","indexId":"wri994184","displayToPublicDate":"2000-05-01T00:00:00","publicationYear":"2000","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":"99-4184","title":"Laboratory performance in the Sediment Laboratory Quality-Assurance Project, 1996-98","docAbstract":"<p>This report describes the results of the first 3 years of an ongoing study of sediment laboratories used by the U.S. Geological Survey (USGS). The sediment laboratories currently in operation constitute the entire USGS national laboratory system for sediment analyses. As with all environmental data, physical sediment data can be expected to contain a certain amount of difference, whether the difference resulted from the collecting, transporting, or analyzing of the sample. Because it is important to know how each laboratory is performing, the USGS initiated the Sediment Laboratory Quality-Assurance (SLQA) project in August 1996. From August 1996 through June 1998, five studies were made, the results of which are the basis of this report.</p>\n<p>The focus of the project is on quantitative analyses done on water-sediment mixtures to derive suspended-sediment concentrations, sediment-mass determinations, and sand/fine separations. For the purpose of this report, all mass determinations are net values&mdash;the tare weight of the container is excluded. The fine-size material is defined as particles sieved to a size of less than 62 micrometers (&micro;m) and sand-size material is defined as particles sieved to a size of between 63 and 125 &micro;m. Also, in this report, class 1 samples are defined as samples containing 50 to 100 milligrams (mg) of fine-size material, class 2 samples are defined as samples containing 101 to 300 mg of fine-size material, and class 3 samples are defined as samples containing 2,200 to 3,200 mg of fine-size material. In studies 96-1 through 98-1, the amount of sand added to each sample ranged from 9 to 28 percent of the mass of fine-size material in each sample class.</p>\n<p>Analytical results from all sediment quality-control samples are compiled and statistically summarized by the USGS, Branch of Quality Systems, both on an intra- and interlaboratory basis. When evaluating these data, the reader needs to keep in mind that every measurement has an error component associated with it. It is premature to use the data from the first five SLQA studies to judge any of the laboratories as performing in an unacceptable manner. There were, however, some notable differences in the results for the 12 laboratories that participated in the five SLQA studies. For example, the overall median percent difference for suspended-sediment concentration on an individual laboratory basis ranged from &ndash;18.04 to &ndash;0.33 percent. Five of the 12 laboratories had an overall median percent difference for suspended-sediment concentration of &ndash;2.02 to &ndash;0.33 percent. There was less variability in the median difference for the measured fine-size material mass. The overall median percent difference for fine-size material mass ranged from &ndash;10.11 to &ndash;4.27 percent. Except for one laboratory, the median difference for fine-size material mass was within a fairly narrow range of &ndash;6.76 to &ndash;4.27 percent. The median percent difference for sand-size material mass differed among laboratories more than any other physical sediment property measured in the study. The overall median percent difference for the sand-size material mass ranged from &ndash;1.49 percent to 26.39 percent. Five of the nine laboratories that do sand/fine separations had overall median percent differences that ranged from &ndash;1.49 to 2.98 percent for sand-size material mass. Careful review of the data reveals that certain laboratories consistently produced data within statistical control limits for some or all of the physical sediment properties measured in this study, whereas other laboratories occasionally produced data that exceeded the control limits.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Denver, CO","doi":"10.3133/wri994184","usgsCitation":"Gordon, J.D., Newland, C.A., and Gagliardi, S.T., 2000, Laboratory performance in the Sediment Laboratory Quality-Assurance Project, 1996-98: U.S. Geological Survey Water-Resources Investigations Report 99-4184, Report: vi, 39 p.; Figures, https://doi.org/10.3133/wri994184.","productDescription":"Report: vi, 39 p.; Figures","onlineOnly":"N","additionalOnlineFiles":"N","temporalStart":"1996-08-01","temporalEnd":"1998-06-30","costCenters":[],"links":[{"id":158967,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/wri994184.PNG"},{"id":323272,"rank":3,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/wri/1999/4184/figures.pdf","text":"Figures","linkFileType":{"id":1,"text":"pdf"}},{"id":9915,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://bqs.usgs.gov/slqa/slqa_96-98.html","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b32e4b07f02db6b44c8","contributors":{"authors":[{"text":"Gordon, John D. 0000-0001-8396-8524 jgordon@usgs.gov","orcid":"https://orcid.org/0000-0001-8396-8524","contributorId":347,"corporation":false,"usgs":true,"family":"Gordon","given":"John","email":"jgordon@usgs.gov","middleInitial":"D.","affiliations":[{"id":583,"text":"Texas Water Science Center","active":true,"usgs":true}],"preferred":true,"id":197997,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Newland, Carla A.","contributorId":97536,"corporation":false,"usgs":true,"family":"Newland","given":"Carla","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":197999,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gagliardi, Shane T.","contributorId":82358,"corporation":false,"usgs":true,"family":"Gagliardi","given":"Shane","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":197998,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":24454,"text":"ofr006 - 2000 - Puerto Rico: Marine sediments, terrestrial and seafloor imagery, and tectonic interpretations","interactions":[],"lastModifiedDate":"2022-12-22T19:19:42.226447","indexId":"ofr006","displayToPublicDate":"2000-05-01T00:00:00","publicationYear":"2000","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":"2000-6","title":"Puerto Rico: Marine sediments, terrestrial and seafloor imagery, and tectonic interpretations","docAbstract":"Introduction: Puerto Rico is an island situated in the plate boundary zone between the Caribbean and the North American Plates. This is a geologically fascinating, tectonically active region, where the Caribbean Plate has over-ridden the North American Plate and is now sliding past it with strike-slip motion. The details of this tectonic interaction are poorly understood, largely because much of the region lies under water, making it difficult to study.\n\nThe geologic setting of Puerto Rico has created or contributed to several pressing societal issues, related to human safety, environmental health, and economic development. Because the island lies on an active plate boundary, earthquakes are a constant threat and the densely populated coastal areas are vulnerable to tsunamis. Coastal erosion is a concern in many coastal areas, but is particularly serious to an island economy which relies heavily on a thriving tourist industry. In Puerto Rico, illegal mining of beach sands for use as aggregate has exacerbated coastal erosion and left coastal communities more exposed to the ravages of storms and tsunamis. The serious need for an affordable local source of aggregate to use in the growing construction industry on the island has created a strong interest in locating and evaluating offshore sand and gravel deposits.\n\nDuring the last 20 years the U.S. Geological Survey, often in cooperation with the Puerto Rico Department of Natural Resources and/or the University of Puerto Rico, has conducted a variety of projects to address the geologic aspects of these pressing societal issues. The papers and data presented here are the results of these projects. Some have been previously published elsewhere; others, such as the database of surficial sediments of the Puerto Rico insular shelf, interpretation of side-looking airborne radar imagery of the island, and the GIS data, are presented here for the first time. The purpose of this CD is to make the results of these diverse studies available in a readily accessible digital form, so that managers, planners, and other researchers can utilize the results.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr006","usgsCitation":"Scanlon, K.M., and Briere, P.R., 2000, Puerto Rico: Marine sediments, terrestrial and seafloor imagery, and tectonic interpretations: U.S. Geological Survey Open-File Report 2000-6, HTML Document, https://doi.org/10.3133/ofr006.","productDescription":"HTML Document","costCenters":[],"links":[{"id":134049,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":9145,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2000/of00-006/","linkFileType":{"id":5,"text":"html"}},{"id":410957,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_25866.htm","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Puerto Rico","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -67.30347537316919,\n              18.614774494640812\n            ],\n            [\n              -67.30347537316919,\n              17.815460228092718\n            ],\n            [\n              -65.5597702838244,\n              17.815460228092718\n            ],\n            [\n              -65.5597702838244,\n              18.614774494640812\n            ],\n            [\n              -67.30347537316919,\n              18.614774494640812\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a90e4b07f02db655b98","contributors":{"authors":[{"text":"Scanlon, Kathryn M.","contributorId":6816,"corporation":false,"usgs":true,"family":"Scanlon","given":"Kathryn","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":191956,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Briere, Peter R.","contributorId":14789,"corporation":false,"usgs":true,"family":"Briere","given":"Peter","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":191957,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":24740,"text":"ofr00167 - 2000 - Sidescan-sonar imagery, surface sediment samples, and surficial geologic interpretation of the southwestern Washington inner continental shelf based on data collected during Corliss Cruises 97007 and 98014","interactions":[],"lastModifiedDate":"2024-02-23T15:48:34.013784","indexId":"ofr00167","displayToPublicDate":"2000-05-01T00:00:00","publicationYear":"2000","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":"2000-167","title":"Sidescan-sonar imagery, surface sediment samples, and surficial geologic interpretation of the southwestern Washington inner continental shelf based on data collected during Corliss Cruises 97007 and 98014","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr00167","issn":"0094-9140","usgsCitation":"Twichell, D.C., Cross, V., and Parolski, K.F., 2000, Sidescan-sonar imagery, surface sediment samples, and surficial geologic interpretation of the southwestern Washington inner continental shelf based on data collected during Corliss Cruises 97007 and 98014: U.S. Geological Survey Open-File Report 2000-167, HTML Document, https://doi.org/10.3133/ofr00167.","productDescription":"HTML Document","costCenters":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":1949,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2000/of00-167/","linkFileType":{"id":5,"text":"html"}},{"id":157784,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49fae4b07f02db5f3df4","contributors":{"authors":[{"text":"Twichell, David C.","contributorId":37730,"corporation":false,"usgs":true,"family":"Twichell","given":"David","email":"","middleInitial":"C.","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":192474,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cross, V.A.","contributorId":88687,"corporation":false,"usgs":true,"family":"Cross","given":"V.A.","email":"","affiliations":[],"preferred":false,"id":192475,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Parolski, K. F.","contributorId":99173,"corporation":false,"usgs":true,"family":"Parolski","given":"K.","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":192476,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":32269,"text":"ofr00108 - 2000 - Map and database of Quaternary faults and folds in Argentina","interactions":[],"lastModifiedDate":"2017-03-07T10:33:00","indexId":"ofr00108","displayToPublicDate":"2000-05-01T00:00:00","publicationYear":"2000","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":"2000-108","title":"Map and database of Quaternary faults and folds in Argentina","docAbstract":"<p>No abstract available.&nbsp;</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr00108","usgsCitation":"Costa, C., Machette, M.N., Dart, R., Bastias, H., Paredes, J., Perucca, L., Tello, G., and Haller, K.M., 2000, Map and database of Quaternary faults and folds in Argentina: U.S. Geological Survey Open-File Report 2000-108, 76 p., https://doi.org/10.3133/ofr00108.","productDescription":"76 p.","costCenters":[],"links":[{"id":163356,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":3253,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2000/ofr-00-0108/","linkFileType":{"id":5,"text":"html"}}],"country":"Argentina ","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -76.37695312499999,\n              -56.46249048388979\n            ],\n            [\n              -53.4375,\n              -56.46249048388979\n            ],\n            [\n              -53.4375,\n              -21.37124437061831\n            ],\n            [\n              -76.37695312499999,\n              -21.37124437061831\n            ],\n            [\n              -76.37695312499999,\n              -56.46249048388979\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a8be4b07f02db6518dd","contributors":{"authors":[{"text":"Costa, Carlos","contributorId":45759,"corporation":false,"usgs":true,"family":"Costa","given":"Carlos","email":"","affiliations":[],"preferred":false,"id":208124,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Machette, M. N.","contributorId":19561,"corporation":false,"usgs":true,"family":"Machette","given":"M.","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":208121,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dart, R. L.","contributorId":25547,"corporation":false,"usgs":true,"family":"Dart","given":"R. L.","affiliations":[],"preferred":false,"id":208122,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Bastias, H.E.","contributorId":63072,"corporation":false,"usgs":true,"family":"Bastias","given":"H.E.","email":"","affiliations":[],"preferred":false,"id":208125,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Paredes, J.D.","contributorId":10077,"corporation":false,"usgs":true,"family":"Paredes","given":"J.D.","email":"","affiliations":[],"preferred":false,"id":208120,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Perucca, L.P.","contributorId":87189,"corporation":false,"usgs":true,"family":"Perucca","given":"L.P.","email":"","affiliations":[],"preferred":false,"id":208126,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Tello, G.E.","contributorId":32965,"corporation":false,"usgs":true,"family":"Tello","given":"G.E.","email":"","affiliations":[],"preferred":false,"id":208123,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Haller, K. M.","contributorId":104073,"corporation":false,"usgs":true,"family":"Haller","given":"K.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":208127,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":32270,"text":"ofr00145 - 2000 - Digital geologic map of the Butler Peak 7.5' quadrangle, San Bernardino County, California","interactions":[],"lastModifiedDate":"2023-06-22T13:13:26.857636","indexId":"ofr00145","displayToPublicDate":"2000-05-01T00:00:00","publicationYear":"2000","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":"2000-145","title":"Digital geologic map of the Butler Peak 7.5' quadrangle, San Bernardino County, California","docAbstract":"Open-File Report 00-145, is a digital geologic map database of the Butler Peak 7.5' quadrangle that includes (1) ARC/INFO (<a href=\"http://www.esri.com/\" target=\"_blank\">Environmental Systems Research Institute</a>) version 7.2.1 Patch 1 coverages, and associated tables, (2) a Portable Document Format (.pdf) file of the Description of Map Units, Correlation of Map Units chart, and an explanation of symbols used on the map, btlrpk_dcmu.pdf, (3) a Portable Document Format file of this Readme, btlrpk_rme.pdf (the Readme is also included as an ascii file in the data package), and (4) a PostScript plot file of the map, Correlation of Map Units, and Description of Map Units on a single sheet, btlrpk.ps. No paper map is included in the Open-File report, but the PostScript plot file (number 4 above) can be used to produce one. The PostScript plot file generates a map, peripheral text, and diagrams in the editorial format of USGS Geologic Investigation Series (I-series) maps.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr00145","collaboration":"Prepared in cooperation with the U.S. Forest Service (San Bernardino National Forest) and the California Division of Mines and Geology","usgsCitation":"Miller, F.K., Matti, J.C., Brown, H., and Cossette, D.P., 2000, Digital geologic map of the Butler Peak 7.5' quadrangle, San Bernardino County, California: U.S. Geological Survey Open-File Report 2000-145, Readme: TXT; Readme: PDF, 14 p.; Metadata; Data; Map: 46.15 x 32.51 inches; Map: Postscript file; Map Units: 16 p., https://doi.org/10.3133/ofr00145.","productDescription":"Readme: TXT; Readme: PDF, 14 p.; Metadata; Data; Map: 46.15 x 32.51 inches; Map: Postscript file; Map Units: 16 p.","additionalOnlineFiles":"Y","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":281458,"rank":7,"type":{"id":20,"text":"Read Me"},"url":"https://pubs.usgs.gov/of/2000/0145/btlrpk_rme.pdf"},{"id":281461,"rank":6,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2000/0145/btlrpk.pdf"},{"id":281459,"rank":5,"type":{"id":16,"text":"Metadata"},"url":"https://pubs.usgs.gov/of/2000/0145/btlrpk_met.txt"},{"id":281460,"rank":4,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/2000/0145/btlrpk.tar.gz"},{"id":281462,"rank":3,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/2000/0145/btlrpk_ps.gz"},{"id":281463,"rank":2,"type":{"id":2,"text":"Additional Report Piece"},"url":"https://pubs.usgs.gov/of/2000/0145/btlrpk_dcmu.pdf"},{"id":163357,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr00145.gif"},{"id":3254,"rank":9,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2000/0145/","linkFileType":{"id":5,"text":"html"}},{"id":281457,"rank":8,"type":{"id":20,"text":"Read Me"},"url":"https://pubs.usgs.gov/of/2000/0145/btlrpkrme.txt"}],"scale":"24000","projection":"Lambert conformal conic projection","country":"United States","state":"California","county":"San Bernardino County","otherGeospatial":"Butler Peak","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -117.125,34.25 ], [ -117.125,34.375 ], [ -117.0,34.375 ], [ -117.0,34.25 ], [ -117.125,34.25 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a82e4b07f02db64b3e4","contributors":{"authors":[{"text":"Miller, Fred K.","contributorId":89503,"corporation":false,"usgs":true,"family":"Miller","given":"Fred","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":208130,"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":208128,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Brown, Howard J.","contributorId":89582,"corporation":false,"usgs":true,"family":"Brown","given":"Howard J.","affiliations":[],"preferred":false,"id":208131,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Cossette, Digital preparation by P. 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,{"id":32271,"text":"ofr00175 - 2000 - Geologic map and digital database of the Cougar Buttes 7.5' quadrangle, San Bernardino County, California","interactions":[],"lastModifiedDate":"2023-06-22T13:12:30.732285","indexId":"ofr00175","displayToPublicDate":"2000-05-01T00:00:00","publicationYear":"2000","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":"2000-175","title":"Geologic map and digital database of the Cougar Buttes 7.5' quadrangle, San Bernardino County, California","docAbstract":"The Southern California Areal Mapping Project (SCAMP) of Geologic Division has undertaken regional geologic mapping investigations in the Lucerne Valley area co-sponsored by the Mojave Water Agency and the San Bernardino National Forest. These investigations span the Lucerne Valley basin from the San Bernardino Mountains front northward to the basin axis on the Mojave Desert floor, and from the Rabbit Lake basin east to the Old Woman Springs area. Quadrangles mapped include the Cougar Buttes 7.5' quadrangle, the Lucerne Valley 7.5' quadrangle (Matti and others, in preparation b), the Fawnskin 7.5' quadrangle (Miller and others, 1998), and the Big Bear City 7.5' quadrangle (Matti and others, in preparation a). The Cougar Buttes quadrangle has been mapped previously at scales of 1:62,500 (Dibblee, 1964) and 1:24,000 (Shreve, 1958, 1968; Sadler, 1982a). In line with the goals of the National Cooperative Geologic Mapping Program (NCGMP), our mapping of the Cougar Buttes quadrangle has been directed toward generating a multipurpose digital geologic map database. Guided by the mapping of previous investigators, we have focused on improving our understanding and representation of late Pliocene and Quaternary deposits. In cooperation with the Water Resources Division of the U.S. Geological Survey, we have used our mapping in the Cougar Buttes and Lucerne Valley quadrangles together with well log data to construct cross-sections of the Lucerne Valley basin (R.E. Powell, unpublished data, 1996-1998) and to develop a hydrogeologic framework for the basin. Currently, our mapping in these two quadrangles also is being used as a base for studying soils on various Quaternary landscape surfaces on the San Bernardino piedmont (Eppes and others, 1998). In the Cougar Buttes quadrangle, we have endeavored to represent the surficial geology in a way that provides a base suitable for ecosystem assessment, an effort that has entailed differentiating surficial veneers on piedmont and pediment surfaces and distinguishing the various substrates found beneath these veneers.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr00175","collaboration":"Prepared in cooperation with Mojave Water Agency, California Division of Mines and Geology","usgsCitation":"Powell, R.E., Matti, J.C., and Cossette, P., 2000, Geologic map and digital database of the Cougar Buttes 7.5' quadrangle, San Bernardino County, California: U.S. Geological Survey Open-File Report 2000-175, Report: 19 p., Plate: 36.00 x 48.00 inches, Readme, Metadata, https://doi.org/10.3133/ofr00175.","productDescription":"Report: 19 p., Plate: 36.00 x 48.00 inches, Readme, Metadata","additionalOnlineFiles":"Y","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":397818,"rank":7,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_26228.htm"},{"id":285898,"rank":6,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr00175.jpg"},{"id":281539,"rank":5,"type":{"id":20,"text":"Read Me"},"url":"https://pubs.usgs.gov/of/2000/0175/pdf/coug_readme.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":281543,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2000/0175/pdf/coug_pamph.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":281542,"rank":4,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2000/0175/pdf/coug_map.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":281541,"rank":3,"type":{"id":16,"text":"Metadata"},"url":"https://pubs.usgs.gov/of/2000/0175/coug_met.txt","linkFileType":{"id":2,"text":"txt"}},{"id":281540,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2000/0175/","linkFileType":{"id":5,"text":"html"}}],"scale":"24000","country":"United States","state":"California","county":"San Bernardino County","otherGeospatial":"Cougar Buttes Quadrangle","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -116.875,\n              34.375\n            ],\n            [\n              -116.75,\n              34.375\n            ],\n            [\n              -116.75,\n              34.5\n            ],\n            [\n              -116.875,\n              34.5\n            ],\n            [\n              -116.875,\n              34.375\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b05e4b07f02db699f9a","contributors":{"authors":[{"text":"Powell, Robert E. 0000-0001-7682-1655 rpowell@usgs.gov","orcid":"https://orcid.org/0000-0001-7682-1655","contributorId":4210,"corporation":false,"usgs":true,"family":"Powell","given":"Robert","email":"rpowell@usgs.gov","middleInitial":"E.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":208134,"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":208133,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cossette, P. M. 0000-0002-9608-6595","orcid":"https://orcid.org/0000-0002-9608-6595","contributorId":36586,"corporation":false,"usgs":true,"family":"Cossette","given":"P. M.","affiliations":[],"preferred":false,"id":208132,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":4901,"text":"ds59 - 2000 - Organic geochemistry data of Alaska","interactions":[],"lastModifiedDate":"2012-02-10T00:10:06","indexId":"ds59","displayToPublicDate":"2000-05-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":310,"text":"Data Series","code":"DS","onlineIssn":"2327-638X","printIssn":"2327-0271","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"59","title":"Organic geochemistry data of Alaska","docAbstract":"In order to archive the results of various petroleum geochemical analyses of the Alaska resource assessment, the USGS developed an Alaskan Organic Geochemical Data Base (AOGDB) in 1978 to house the data generated from USGS and subcontracted laboratories. Prior to the AOGDB, the accumulated data resided in a flat data file entitled 'PGS' that was maintained by Petroleum Information Corporation with technical input from the USGS. The information herein is a breakout of the master flat file format into a relational data base table format (akdata).","language":"ENGLISH","publisher":"U. S. Geological Survey :USGS Information Services [distributor],","doi":"10.3133/ds59","issn":"1088-1018","isbn":"0607942754","usgsCitation":"complied by Threlkeld, C.N., Obuch, R.C., and Gunther, G., 2000, Organic geochemistry data of Alaska (Version 1.0): U.S. Geological Survey Data Series 59, One computer laser disc :col. maps ;4 3/4 in. in plastic box 13 x 15 x 1 cm., https://doi.org/10.3133/ds59.","productDescription":"One computer laser disc :col. maps ;4 3/4 in. in plastic box 13 x 15 x 1 cm.","costCenters":[],"links":[{"id":139877,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":115722,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/dds/dds-059/","linkFileType":{"id":5,"text":"html"}}],"scale":"2000000","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -165.45,55.3175 ], [ -165.45,72 ], [ -131.61666666666667,72 ], [ -131.61666666666667,55.3175 ], [ -165.45,55.3175 ] ] ] } } ] }","edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4aeee4b07f02db6910ed","contributors":{"authors":[{"text":"complied by Threlkeld, Charles N.","contributorId":23133,"corporation":false,"usgs":true,"family":"complied by Threlkeld","given":"Charles","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":150073,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Obuch, Raymond C. 0000-0003-4032-7086 obuch@usgs.gov","orcid":"https://orcid.org/0000-0003-4032-7086","contributorId":3092,"corporation":false,"usgs":true,"family":"Obuch","given":"Raymond","email":"obuch@usgs.gov","middleInitial":"C.","affiliations":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":150072,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gunther, G.L.","contributorId":25938,"corporation":false,"usgs":true,"family":"Gunther","given":"G.L.","email":"","affiliations":[],"preferred":false,"id":150074,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":61343,"text":"mf2329 - 2000 - Map showing inventory and regional susceptibility for Holocene debris flows, and related fast-moving landslides in the conterminous United States","interactions":[],"lastModifiedDate":"2018-06-12T10:51:58","indexId":"mf2329","displayToPublicDate":"2000-05-01T00:00:00","publicationYear":"2000","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":"2329","title":"Map showing inventory and regional susceptibility for Holocene debris flows, and related fast-moving landslides in the conterminous United States","docAbstract":"Introduction\r\n\r\nDebris flows, debris avalanches, mud flows and lahars are fast-moving landslides that occur in a wide variety of environments throughout the world. They are particularly dangerous to life and property because they move quickly, destroy objects in their paths, and often strike without warning. This map represents a significant effort to compile the locations of known debris flows in United Stated and predict where future flows might occur.\r\n\r\nThe files 'dfipoint.e00' and 'dfipoly.e00' contain the locations of over 6600 debris flows from published and unpublished sources. The locations are referenced by numbers that correspond to entries in a bibliography, which is part of the pamphlet 'mf2329pamphlet.pdf'. The areas of possible future debris flows are shown in the file 'susceptibility.tif', which is a georeferenced TIFF file that can be opened in an image editing program or imported into a GIS system like ARC/INFO. All other databases are in ARC/INFO export (.e00) format.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/mf2329","usgsCitation":"Brabb, E.E., Colgan, J.P., and Best, T.C., 2000, Map showing inventory and regional susceptibility for Holocene debris flows, and related fast-moving landslides in the conterminous United States (Online Version 1.0): U.S. Geological Survey Miscellaneous Field Studies Map 2329, 2 Sheets; Text; Data Files, https://doi.org/10.3133/mf2329.","productDescription":"2 Sheets; Text; Data Files","costCenters":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"links":[{"id":179941,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":109900,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_23243.htm","linkFileType":{"id":5,"text":"html"},"description":"23243"},{"id":10445,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/mf/1999/2329/","linkFileType":{"id":5,"text":"html"}}],"scale":"2500000","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -124.75,25 ], [ -124.75,49 ], [ -67,49 ], [ -67,25 ], [ -124.75,25 ] ] ] } } ] }","edition":"Online Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a82e4b07f02db64afd6","contributors":{"authors":[{"text":"Brabb, Earl E.","contributorId":48939,"corporation":false,"usgs":true,"family":"Brabb","given":"Earl","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":265469,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Colgan, Joseph P. 0000-0001-6671-1436 jcolgan@usgs.gov","orcid":"https://orcid.org/0000-0001-6671-1436","contributorId":1649,"corporation":false,"usgs":true,"family":"Colgan","given":"Joseph","email":"jcolgan@usgs.gov","middleInitial":"P.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true},{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":265468,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Best, Timothy C.","contributorId":57940,"corporation":false,"usgs":true,"family":"Best","given":"Timothy","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":265470,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70185675,"text":"70185675 - 2000 - Chamber measurement of surface-atmosphere trace gas exchange: Numerical evaluation of dependence on soil interfacial layer, and source/sink products","interactions":[],"lastModifiedDate":"2018-12-10T07:48:37","indexId":"70185675","displayToPublicDate":"2000-04-16T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2316,"text":"Journal of Geophysical Research D: Atmospheres","active":true,"publicationSubtype":{"id":10}},"title":"Chamber measurement of surface-atmosphere trace gas exchange: Numerical evaluation of dependence on soil interfacial layer, and source/sink products","docAbstract":"<p> We employed a three-dimensional finite difference gas diffusion model to simulate the performance of chambers used to measure surface-atmosphere tace gas exchange. We found that systematic errors often result from conventional chamber design and deployment protocols, as well as key assumptions behind the estimation of trace gas exchange rates from observed concentration data. Specifically, our simulationshowed that (1) when a chamber significantly alters atmospheric mixing processes operating near the soil surface, it also nearly instantaneously enhances or suppresses the postdeployment gas exchange rate, (2) any change resulting in greater soil gas diffusivity, or greater partitioning of the diffusing gas to solid or liquid soil fractions, increases the potential for chamber-induced measurement error, and (3) all such errors are independent of the magnitude, kinetics, and/or distribution of trace gas sources, but greater for trace gas sinks with the same initial absolute flux. Finally, and most importantly, we found that our results apply to steady state as well as non-steady-state chambers, because the slow rate of gas diffusion in soil inhibits recovery of the former from their initial non-steady-state condition. Over a range of representative conditions, the error in steady state chamber estimates of the trace gas flux varied from -30 to +32%, while estimates computed by linear regression from non-steadystate chamber concentrations were 2 to 31% too small. Although such errors are relatively small in comparison to the temporal and spatial variability characteristic of trace gas exchange, they bias the summary statistics for each experiment as well as larger scale trace gas flux estimates based on them. </p>","language":"English","publisher":"Wiley","doi":"10.1029/1999JD901204","usgsCitation":"Hutchinson, G., Livingston, G., Healy, R.W., and Striegl, R.G., 2000, Chamber measurement of surface-atmosphere trace gas exchange: Numerical evaluation of dependence on soil interfacial layer, and source/sink products: Journal of Geophysical Research D: Atmospheres, v. 105, no. D7, p. 8865-8875, https://doi.org/10.1029/1999JD901204.","productDescription":"11 p. ","startPage":"8865","endPage":"8875","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":479138,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/1999jd901204","text":"Publisher Index Page"},{"id":338386,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"105","issue":"D7","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58da253ae4b0543bf7fda851","contributors":{"authors":[{"text":"Hutchinson, G.L.","contributorId":189877,"corporation":false,"usgs":false,"family":"Hutchinson","given":"G.L.","email":"","affiliations":[],"preferred":false,"id":686324,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Livingston, G.P.","contributorId":189878,"corporation":false,"usgs":false,"family":"Livingston","given":"G.P.","email":"","affiliations":[],"preferred":false,"id":686325,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Healy, R. W.","contributorId":89872,"corporation":false,"usgs":true,"family":"Healy","given":"R.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":686326,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Striegl, Robert G. 0000-0002-8251-4659 rstriegl@usgs.gov","orcid":"https://orcid.org/0000-0002-8251-4659","contributorId":1630,"corporation":false,"usgs":true,"family":"Striegl","given":"Robert","email":"rstriegl@usgs.gov","middleInitial":"G.","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true},{"id":36183,"text":"Hydro-Ecological Interactions Branch","active":true,"usgs":true},{"id":200,"text":"Coop Res Unit Seattle","active":true,"usgs":true}],"preferred":false,"id":686327,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":4861,"text":"ds52 - 2000 - U.S. Geological Survey mineral databases; MRDS and MAS/MILS","interactions":[],"lastModifiedDate":"2018-11-05T10:25:58","indexId":"ds52","displayToPublicDate":"2000-04-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":310,"text":"Data Series","code":"DS","onlineIssn":"2327-638X","printIssn":"2327-0271","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"52","title":"U.S. Geological Survey mineral databases; MRDS and MAS/MILS","docAbstract":"These two CD-ROM's contain the latest version of the Mineral Resources Data System (MRDS) database and the Minerals Availability System/Minerals Industry Location System (MAS/MILS) database for coverage of North America and the world outside North America. The records in the MRDS database each contain almost 200 data fields describing metallic and nonmetallic mineral resources, deposits, and commodities. The records in the MAS/MILS database each contain almost 100 data fields describing mines and mineral processing plans.","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/ds52","isbn":"0607940212","usgsCitation":"McFaul, E., Mason, G., Ferguson, W., and Lipin, B., 2000, U.S. Geological Survey mineral databases; MRDS and MAS/MILS: U.S. Geological Survey Data Series 52, 2 computer optical discs ;4 3/4 in., https://doi.org/10.3133/ds52.","productDescription":"2 computer optical discs ;4 3/4 in.","costCenters":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"links":[{"id":139959,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":330565,"rank":3,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/dds/dds-52/dds52_disc2.zip","text":"Disc 2","linkFileType":{"id":6,"text":"zip"}},{"id":330564,"rank":2,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/dds/dds-52/dds52_disc1.zip","text":"Disc 1","linkFileType":{"id":6,"text":"zip"}}],"scale":"0","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -124.75,24.5 ], [ -124.75,71.41666666666667 ], [ -66.93333333333334,71.41666666666667 ], [ -66.93333333333334,24.5 ], [ -124.75,24.5 ] ] ] } } ] }","publicComments":"The USGS does not provide technical support for the software associated with this publication.","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49dfe4b07f02db5e3d50","contributors":{"authors":[{"text":"McFaul, E.J.","contributorId":8465,"corporation":false,"usgs":true,"family":"McFaul","given":"E.J.","email":"","affiliations":[],"preferred":false,"id":149966,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mason, G.T.","contributorId":9232,"corporation":false,"usgs":true,"family":"Mason","given":"G.T.","email":"","affiliations":[],"preferred":false,"id":149967,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ferguson, W.B.","contributorId":87926,"corporation":false,"usgs":true,"family":"Ferguson","given":"W.B.","email":"","affiliations":[],"preferred":false,"id":149969,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lipin, B. R.","contributorId":61031,"corporation":false,"usgs":true,"family":"Lipin","given":"B. R.","affiliations":[],"preferred":false,"id":149968,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70170470,"text":"70170470 - 2000 - Phylogenetic sequence analysis, recombinant expression, and tissue distribution of a channel catfish estrogen receptor beta","interactions":[],"lastModifiedDate":"2016-04-21T14:42:44","indexId":"70170470","displayToPublicDate":"2000-04-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1738,"text":"General and Comparative Endocrinology","active":true,"publicationSubtype":{"id":10}},"title":"Phylogenetic sequence analysis, recombinant expression, and tissue distribution of a channel catfish estrogen receptor beta","docAbstract":"<div class=\"abstract svAbstract \" data-etype=\"ab\">\n<p id=\"simple-para0005\"><span>An&nbsp;</span><a class=\"linkText\" href=\"http://topics.sciencedirect.com/topics/page/Estrogen\">estrogen</a><span>&nbsp;receptor &beta; (ER&beta;) cDNA fragment was amplified by&nbsp;</span><a class=\"linkText\" href=\"http://topics.sciencedirect.com/topics/page/Reverse_transcription_polymerase_chain_reaction\">RT-PCR</a><span>&nbsp;of total&nbsp;</span><a class=\"linkText\" href=\"http://topics.sciencedirect.com/topics/page/RNA\">RNA</a><span>extracted from liver and ovary of immature channel catfish. This cDNA fragment was used to screen an ovarian&nbsp;</span><a class=\"linkText\" href=\"http://topics.sciencedirect.com/topics/page/CDNA_library\">cDNA library</a><span>&nbsp;made from an immature female fish. A clone was obtained that contained an open reading frame encoding a 575-amino-acid protein with a deduced molecular weight of 63.9 kDa. Maximum parsimony and Neighbor Joining analyses were used to generate a&nbsp;</span><a class=\"linkText\" href=\"http://topics.sciencedirect.com/topics/page/Phylogenetics\">phylogenetic</a><span>&nbsp;classification of channel catfish ER&beta; on the basis of 25 full-length teleost and tetrapod ER sequences. The consensus tree obtained indicated the existence of two major vertebrate&nbsp;</span><a class=\"linkText\" href=\"http://topics.sciencedirect.com/topics/page/Estrogen_receptor\">ER subtypes</a><span>, &alpha; and &beta;. Within each subtype, and in accordance with established&nbsp;</span><a class=\"linkText\" href=\"http://topics.sciencedirect.com/topics/page/Phylogenetics\">phylogenetic relationships</a><span>, teleost and tetrapod ER were monophyletic confirming the results of a previous analysis (Z. Xia</span><i>et al</i><span>., 1999,&nbsp;</span><i>Gen. Comp. Endocrinol</i><span>.&nbsp;</span><span class=\"boldFont\">113,</span><span>&nbsp;360&ndash;368). Extracts of&nbsp;</span><a class=\"linkText\" href=\"http://topics.sciencedirect.com/topics/page/COS_cells\">COS-7</a><span>&nbsp;cells&nbsp;</span><a class=\"linkText\" href=\"http://topics.sciencedirect.com/topics/page/Transfection\">transfected</a><span>with channel catfish ER&beta; cDNA bound estrogen with high affinity (</span><i>K</i><sub>d</sub><span>&nbsp;= 0.21 nM) and specificity. The affinity of channel catfish ER&beta; for estrogen was higher than previously reported for channel catfish ER&alpha;. As determined by qualitative RT-PCR, the tissue distributions of ER&alpha; and ER&beta; were similar but not identical. Both ER subtypes were present in ovary and testis. ER&alpha; was found in all other tissues examined from juvenile and mature fish of both sexes. ER&beta; was also found in most tissues except, in most cases, whole blood and head kidney. Interestingly, the pattern of expression of ER subtypes in head kidney always corresponded to the pattern in whole blood. In conclusion, we isolated a channel catfish ER&beta; with&nbsp;</span><a class=\"linkText\" href=\"http://topics.sciencedirect.com/topics/page/Ligand_(biochemistry)\">ligand-binding</a><span>&nbsp;affinity and tissue expression patterns different from ER&alpha;. Also, we confirmed the validity of our previously proposed general classification scheme for vertebrate ER into &alpha; and &beta; subtypes and within each subtype, into teleost and tetrapod clades.</span></p>\n</div>","language":"English","publisher":"Elsevier","doi":"10.1006/gcen.1999.7447","usgsCitation":"Xia, Z., Gale, W.L., Chang, X., Langenau, D., Patino, R., Maule, A.G., and Densmore, L.D., 2000, Phylogenetic sequence analysis, recombinant expression, and tissue distribution of a channel catfish estrogen receptor beta: General and Comparative Endocrinology, v. 118, no. 1, p. 139-149, https://doi.org/10.1006/gcen.1999.7447.","productDescription":"11 p.","startPage":"139","endPage":"149","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":320375,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"118","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5719f9bee4b071321fe22be4","contributors":{"authors":[{"text":"Xia, Zhenfang","contributorId":12228,"corporation":false,"usgs":true,"family":"Xia","given":"Zhenfang","email":"","affiliations":[],"preferred":false,"id":627343,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gale, William L.","contributorId":48726,"corporation":false,"usgs":true,"family":"Gale","given":"William","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":627344,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Chang, Xiaotian","contributorId":64834,"corporation":false,"usgs":true,"family":"Chang","given":"Xiaotian","email":"","affiliations":[],"preferred":false,"id":627345,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Langenau, David","contributorId":168804,"corporation":false,"usgs":false,"family":"Langenau","given":"David","email":"","affiliations":[{"id":12883,"text":"Department of Biological Sciences, Texas Tech University, Lubbock, TX 79409-3131","active":true,"usgs":false}],"preferred":false,"id":627346,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Patino, Reynaldo 0000-0002-4831-8400 r.patino@usgs.gov","orcid":"https://orcid.org/0000-0002-4831-8400","contributorId":2311,"corporation":false,"usgs":true,"family":"Patino","given":"Reynaldo","email":"r.patino@usgs.gov","affiliations":[{"id":198,"text":"Coop Res Unit Atlanta","active":true,"usgs":true}],"preferred":true,"id":627347,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Maule, Alec G. amaule@usgs.gov","contributorId":2606,"corporation":false,"usgs":true,"family":"Maule","given":"Alec","email":"amaule@usgs.gov","middleInitial":"G.","affiliations":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"preferred":true,"id":627348,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Densmore, Llewellyn D.","contributorId":168805,"corporation":false,"usgs":false,"family":"Densmore","given":"Llewellyn","email":"","middleInitial":"D.","affiliations":[{"id":12883,"text":"Department of Biological Sciences, Texas Tech University, Lubbock, TX 79409-3131","active":true,"usgs":false}],"preferred":false,"id":627349,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70185211,"text":"70185211 - 2000 - Occurrence and load of selected herbicides and metabolites in the lower Mississippi River","interactions":[],"lastModifiedDate":"2021-04-01T21:02:03.448766","indexId":"70185211","displayToPublicDate":"2000-04-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3352,"text":"Science of the Total Environment","active":true,"publicationSubtype":{"id":10}},"title":"Occurrence and load of selected herbicides and metabolites in the lower Mississippi River","docAbstract":"<p><span>Analyses of water samples collected from the Mississippi River at Baton Rouge, Louisiana, during 1991–1997 indicate that hundreds of metric tons of herbicides and herbicide metabolites are being discharged annually to the Gulf of Mexico. Atrazine, metolachlor, and the ethane-sulfonic acid metabolite of alachlor (alachlor ESA) were the most frequently detected herbicides and, in general, were present in the largest concentrations. Almost 80% of the annual herbicide load to the Gulf of Mexico occurred during the growing season from May to August. The concentrations and loads of alachlor in the Mississippi River decreased dramatically after 1993 in response to decreased use in the basin. In contrast, the concentrations and loads of acetochlor increased after 1994, reflecting its role as a replacement for alachlor. The peak annual herbicide load occurred in 1993, when approximately 640 metric tons (t) of atrazine, 320 t of cyanazine, 215 t of metolachlor, 53 t of simazine, and 50 t of alachlor were discharged to the Gulf of Mexico. The annual loads of atrazine and cyanazine were generally 1–2% of the amount annually applied in the Mississippi River drainage basin; the annual loads of acetochlor, alachlor, and metolachlor were generally less than 1%. Despite a reduction in atrazine use, historical data do not indicate a long-term downward trend in the atrazine load to the Gulf of Mexico. Although a relation (</span><i>r</i><sup>2</sup><span>=0.62) exists between the atrazine load and stream discharge during May to August, variations in herbicide use and rainfall patterns within subbasins can have a large effect on herbicide loads in the Mississippi River Basin and probably explain a large part of the annual variation in atrazine load to the Gulf of Mexico.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/S0048-9697(99)00534-3","usgsCitation":"Clark, G.M., and Goolsby, D.A., 2000, Occurrence and load of selected herbicides and metabolites in the lower Mississippi River: Science of the Total Environment, v. 248, no. 2-3, p. 101-113, https://doi.org/10.1016/S0048-9697(99)00534-3.","productDescription":"13 p.","startPage":"101","endPage":"113","costCenters":[{"id":343,"text":"Idaho Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":337727,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Louisana, Mississippi","otherGeospatial":"Mississippi River","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -90.37353515625,\n              29.52567042617583\n            ],\n            [\n              -89.40673828125,\n              29.52567042617583\n            ],\n            [\n              -89.40673828125,\n              30.107117887092357\n            ],\n            [\n              -90.37353515625,\n              30.107117887092357\n            ],\n            [\n              -90.37353515625,\n              29.52567042617583\n            ]\n          ]\n        ]\n      }\n    },\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -91.42822265625,\n              30.088107753367257\n            ],\n            [\n              -90.87890625,\n              30.088107753367257\n            ],\n            [\n              -90.87890625,\n              30.685163937659564\n            ],\n            [\n              -91.42822265625,\n              30.685163937659564\n            ],\n            [\n              -91.42822265625,\n              30.088107753367257\n            ]\n          ]\n        ]\n      }\n    },\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -91.0931396484375,\n              32.20815332547324\n            ],\n            [\n              -90.7855224609375,\n              32.20815332547324\n            ],\n            [\n              -90.7855224609375,\n              32.48428001059022\n            ],\n            [\n              -91.0931396484375,\n              32.48428001059022\n            ],\n            [\n              -91.0931396484375,\n              32.20815332547324\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"248","issue":"2-3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58cba422e4b0849ce97dc788","contributors":{"authors":[{"text":"Clark, Gregory M. gmclark@usgs.gov","contributorId":1377,"corporation":false,"usgs":true,"family":"Clark","given":"Gregory","email":"gmclark@usgs.gov","middleInitial":"M.","affiliations":[{"id":343,"text":"Idaho Water Science Center","active":true,"usgs":true}],"preferred":true,"id":684737,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Goolsby, Donald A.","contributorId":46083,"corporation":false,"usgs":true,"family":"Goolsby","given":"Donald","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":684738,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":21809,"text":"ofr99347 - 2000 - Geochronology and geology of late Oligocene through Miocene volcanism and mineralization in the western San Juan Mountains, Colorado","interactions":[],"lastModifiedDate":"2017-03-09T15:04:36","indexId":"ofr99347","displayToPublicDate":"2000-04-01T00:00:00","publicationYear":"2000","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":"99-347","title":"Geochronology and geology of late Oligocene through Miocene volcanism and mineralization in the western San Juan Mountains, Colorado","docAbstract":"Twenty-five new 40Ar/39Ar ages from volcanic rocks and veins in the western San Juan\r\nMountains clarify relationships between volcanism and mineralization in this classic area. Five\r\ncalc-alkaline ash-flow sheets erupted from caldera sources (Ute Ridge, Blue Mesa, Dillon Mesa,\r\nSapinero Mesa, and Crystal Lake Tuffs) from 28.6 to 27.6 Ma. This is a much more restricted\r\ntime interval than previously thought and indicates that the underlying batholith rose and evolved\r\nvery rapidly beneath the western San Juan Mountains. The new ages and geologic relations\r\nconstrain the timing of joint resurgence of the Uncompahgre and San Juan calderas to between\r\n28.2 and 27.6 Ma. The collapse of the Silverton caldera produced a set of strong ring fractures\r\nthat intersected with graben faults on the earlier resurgent dome to produce the complex set of\r\nstructures that localized the mid-Miocene epithermal gold veins.\r\nLater calc-alkaline monzonitic to quartz monzontic plutons solidified at 26.5-26.0 Ma as\r\nthe underlying batholith rose through its volcanic cover. A new age from lavas near\r\nUncompahgre Peak supports earlier interpretations that these lavas were fed by nearby 26 Ma\r\nmonzonite intrusions. Nearly all of these intrusions are associated with subeconomic Mo and\r\nCu mineralization and associated alteration, and new ages of 26.40 and 25.29 Ma from the\r\nUte-Ulay and Lilly veins in the Lake City region show that some of the most important silver and base-metal veins were temporally and possibly genetically connected to these plutons. In\r\naddition, the Golden Fleece telluride vein cuts all of the post-Uncompahgre caldera volcanics in\r\nthe area and is probably temporally related to this cycle, though its age of 27.5 ? 0.3 Ma was\r\ndetermined by less precise U/Pb methods.\r\nThe 22.9 Ma Lake City caldera collapsed within the older Uncompahgre caldera structure\r\nbut is petrologically unrelated to the older calc-alkaline activity. The distinctive suite of\r\nhigh-silica rhyolite tuff and alkaline resurgent intrusions indicates that it is closely related to the\r\nearly stages of bimodal high-silica rhyolite-alkali basalt volcanism that accompanied the onset of\r\nextensional tectonism in the region. Both 40Ar/39Ar ages and paleomagnetic data confirm that the\r\nentire caldera sequence formed in less than 330,000 years. Only weak quartz vein mineralization\r\nis present in the center of the caldera, and it appears to be related to leaching of metals from the\r\nintracaldera tuffs above the resurgent intrusion. Massive alunitization and weak Mo and Cu\r\nmineralization along the eastern ring fracture are associated with calc-alkaline lavas and stocks\r\nrelated to late stages of the caldera cycle. These calc-alkaline stocks also appear to be genetically\r\nand temporally linked to a radial pattern of barite-precious metal veins on the northeastern\r\nmargin of the Lake City caldera.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr99347","issn":"0566-8174","usgsCitation":"Bove, D.J., Hon, K., Budding, K., Slack, J.F., Snee, L., and Yeoman, R.A., 2000, Geochronology and geology of late Oligocene through Miocene volcanism and mineralization in the western San Juan Mountains, Colorado: U.S. Geological Survey Open-File Report 99-347, 33 p. , https://doi.org/10.3133/ofr99347.","productDescription":"33 p. ","costCenters":[],"links":[{"id":153993,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":1229,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/1999/ofr-99-0347/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Colorado","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e48b1e4b07f02db530720","contributors":{"authors":[{"text":"Bove, D. J.","contributorId":70767,"corporation":false,"usgs":true,"family":"Bove","given":"D.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":185779,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hon, Ken","contributorId":19163,"corporation":false,"usgs":true,"family":"Hon","given":"Ken","affiliations":[],"preferred":false,"id":185778,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Budding, K. E.","contributorId":104932,"corporation":false,"usgs":true,"family":"Budding","given":"K. E.","affiliations":[],"preferred":false,"id":185782,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Slack, J. F.","contributorId":75917,"corporation":false,"usgs":true,"family":"Slack","given":"J.","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":185780,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Snee, L.W.","contributorId":99981,"corporation":false,"usgs":true,"family":"Snee","given":"L.W.","email":"","affiliations":[],"preferred":false,"id":185781,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Yeoman, R. A.","contributorId":107726,"corporation":false,"usgs":true,"family":"Yeoman","given":"R.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":185783,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70243622,"text":"70243622 - 2000 - Radar structure of earthquake-induced, coastal landslides in Anchorage, Alaska","interactions":[],"lastModifiedDate":"2026-04-20T15:40:10.907561","indexId":"70243622","displayToPublicDate":"2000-03-01T11:54:43","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1541,"text":"Environmental Geosciences","active":true,"publicationSubtype":{"id":10}},"title":"Radar structure of earthquake-induced, coastal landslides in Anchorage, Alaska","docAbstract":"<p><span>Ground-penetrating radar (GPR) was used to investigate the internal structure of two large landslides in Anchorage, Alaska that resulted from the great 1964 earthquake. The Government Hill and Turnagain Heights landslides occurred in similar stratigraphic and geographic settings, yet the style of ground deformation is different at each site. GPR data are compared with previous investigations and are shown, under certain conditions, to have utility in the identification of ancient landslides. Reflection surveys accurately reproduced the subsurface geometry of horst and graben structures and imaged finer scale features such as ground cracks and fissures. Where more complete disintegration of the bluff occurred, GPR reflections from within the slide mass are generally chaotic and include no recognizable evidence of the original stratigraphy. Common midpoint surveys estimated GPR velocity in the sediment and allowed the conversion of travel times to depths.</span></p>","language":"English","publisher":"Wiley","doi":"10.1046/j.1526-0984.2000.71007.x","usgsCitation":"Barnhardt, W., and Kayen, R., 2000, Radar structure of earthquake-induced, coastal landslides in Anchorage, Alaska: Environmental Geosciences, v. 7, no. 1, p. 38-45, https://doi.org/10.1046/j.1526-0984.2000.71007.x.","productDescription":"8 p.","startPage":"38","endPage":"45","costCenters":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":417045,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","city":"Anchorage","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -149.31570072765055,\n              61.48249168004975\n            ],\n            [\n              -150.25346860478726,\n              61.48249168004975\n            ],\n            [\n              -150.25346860478726,\n              60.94145100424234\n            ],\n            [\n              -149.31570072765055,\n              60.94145100424234\n            ],\n            [\n              -149.31570072765055,\n              61.48249168004975\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"7","issue":"1","noUsgsAuthors":false,"publicationDate":"2000-03-01","publicationStatus":"PW","contributors":{"authors":[{"text":"Barnhardt, Walter wbarnhardt@usgs.gov","contributorId":190621,"corporation":false,"usgs":true,"family":"Barnhardt","given":"Walter","email":"wbarnhardt@usgs.gov","affiliations":[],"preferred":true,"id":872645,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kayen, Robert E. 0000-0002-0356-072X","orcid":"https://orcid.org/0000-0002-0356-072X","contributorId":261195,"corporation":false,"usgs":true,"family":"Kayen","given":"Robert E.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":872646,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70243662,"text":"70243662 - 2000 - Monitoring beach morphology changes using small-format aerial photography and digital softcopy photogrammetry","interactions":[],"lastModifiedDate":"2026-04-20T15:41:23.454614","indexId":"70243662","displayToPublicDate":"2000-03-01T11:22:49","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1541,"text":"Environmental Geosciences","active":true,"publicationSubtype":{"id":10}},"title":"Monitoring beach morphology changes using small-format aerial photography and digital softcopy photogrammetry","docAbstract":"<p>Current methods of monitoring beach morphology changes commonly involve the establishment of Global Positioning System profiles that are surveyed on a regular basis. Although this method produces precise measurements of coastal topography, it is costly in time and effort and may result in large data gaps between profiles. Much of our understanding of coastal dynamics is thus limited by profile spacing and survey frequency. Softcopy photogrammetry is increasingly being used as an alternative to assess shoreline change and study beach morphodynamics. This method of producing three-dimensional topographic models and orthophotographs from digitized aerial photography can aid in filling in the gaps between established profiles. A limiting factor to this technology is the cost of obtaining high-resolution aerial photography.</p><p>We have developed an aerial mapping system designed to collect data in an efficient and cost-effective way. We use a small-format aerial photography system that can be mounted on a variety of small aircraft on short notice. After a flight, the photographs are scanned, and softcopy photogrammetry software is used to create both DTMs (Digital Terrain Models) and orthophotographs. The DTMs can be compared with existing profiles for accuracy, and volumetric changes can be computed. The orthophotos are used to make precise measurements of the position and morphology of shoreline features. This aerial mapping system is advantageous over previous methods of beach morphology change monitoring because it allows for rapid response to storm events and provides a cost-effective method of establishing a continual monitoring program in erosion hazard areas.</p>","language":"English","publisher":"Wiley","doi":"10.1046/j.1526-0984.2000.71001.x","usgsCitation":"Hapke, C., and Richmond, B.M., 2000, Monitoring beach morphology changes using small-format aerial photography and digital softcopy photogrammetry: Environmental Geosciences, v. 7, no. 1, p. 32-37, https://doi.org/10.1046/j.1526-0984.2000.71001.x.","productDescription":"6 p.","startPage":"32","endPage":"37","costCenters":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true},{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":417101,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"7","issue":"1","noUsgsAuthors":false,"publicationDate":"2000-03-01","publicationStatus":"PW","contributors":{"authors":[{"text":"Hapke, Cheryl 0000-0002-2753-4075 chapke@usgs.gov","orcid":"https://orcid.org/0000-0002-2753-4075","contributorId":139949,"corporation":false,"usgs":true,"family":"Hapke","given":"Cheryl","email":"chapke@usgs.gov","affiliations":[{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":872834,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Richmond, Bruce M. 0000-0002-0056-5832 brichmond@usgs.gov","orcid":"https://orcid.org/0000-0002-0056-5832","contributorId":2459,"corporation":false,"usgs":true,"family":"Richmond","given":"Bruce","email":"brichmond@usgs.gov","middleInitial":"M.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":872835,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
]}