No abstract available.
","language":"English","publisher":"NASA Goddard Space Flight Center","usgsCitation":"Knapp, D., Verdin, K.L., and Hall, F.G., 2000, BOREAS regional DEM in raster format and AEAC projection: Technical Report NASA/TM—2000-209891, v. 108, 11 p.","productDescription":"11 p.","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":432777,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://ntrs.nasa.gov/citations/20010022232","linkFileType":{"id":5,"text":"html"}},{"id":432778,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"108","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Knapp, David","contributorId":318212,"corporation":false,"usgs":false,"family":"Knapp","given":"David","affiliations":[{"id":6607,"text":"Arizona State University","active":true,"usgs":false}],"preferred":false,"id":910329,"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":191,"text":"Colorado Water Science Center","active":true,"usgs":true},{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"preferred":true,"id":910330,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hall, Forrest G.","contributorId":342744,"corporation":false,"usgs":false,"family":"Hall","given":"Forrest","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":910331,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":23356,"text":"ofr00242 - 2000 - Archive of Datasonics SIS-1000 chirp subbottom data collected during USGS Cruise DIAN 97011, Long Island, New York, inner shelf; Fire Island, New York, 5-26 May, 1997","interactions":[],"lastModifiedDate":"2025-07-31T12:50:56.600628","indexId":"ofr00242","displayToPublicDate":"2000-09-01T00:00:00","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":"2000-242","title":"Archive of Datasonics SIS-1000 chirp subbottom data collected during USGS Cruise DIAN 97011, Long Island, New York, inner shelf; Fire Island, New York, 5-26 May, 1997","docAbstract":"No abstract available.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr00242","issn":"0094-9140","usgsCitation":"Hill, J.C., Schwab, W.C., and Foster, D.S., 2000, Archive of Datasonics SIS-1000 chirp subbottom data collected during USGS Cruise DIAN 97011, Long Island, New York, inner shelf; Fire Island, New York, 5-26 May, 1997: U.S. Geological Survey Open-File Report 2000-242, HTML Document, https://doi.org/10.3133/ofr00242.","productDescription":"HTML Document","costCenters":[],"links":[{"id":259840,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2000/0242/","linkFileType":{"id":5,"text":"html"}},{"id":157442,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"contact":"","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac5e4b07f02db679d9b","contributors":{"authors":[{"text":"Hill, Jenna C. 0000-0002-7475-357X","orcid":"https://orcid.org/0000-0002-7475-357X","contributorId":21987,"corporation":false,"usgs":true,"family":"Hill","given":"Jenna","email":"","middleInitial":"C.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":189964,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schwab, William C. 0000-0001-9274-5154 bschwab@usgs.gov","orcid":"https://orcid.org/0000-0001-9274-5154","contributorId":417,"corporation":false,"usgs":true,"family":"Schwab","given":"William","email":"bschwab@usgs.gov","middleInitial":"C.","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":189962,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Foster, David S. 0000-0003-1205-0884 dfoster@usgs.gov","orcid":"https://orcid.org/0000-0003-1205-0884","contributorId":1320,"corporation":false,"usgs":true,"family":"Foster","given":"David","email":"dfoster@usgs.gov","middleInitial":"S.","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":189963,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":4073,"text":"cir1173C - 2000 - Environmental characteristics and water quality of hydrologic benchmark network stations in the west-central United States, 1963-95","interactions":[],"lastModifiedDate":"2017-09-20T16:17:17","indexId":"cir1173C","displayToPublicDate":"2000-09-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":307,"text":"Circular","code":"CIR","onlineIssn":"2330-5703","printIssn":"1067-084X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"1173","chapter":"C","title":"Environmental characteristics and water quality of hydrologic benchmark network stations in the west-central United States, 1963-95","docAbstract":"This report describes the environmental characteristics and water-quality characteristics of 14 benchmark basins in the west-central United States. The information was compiled to aide in the interpretation and application of historical water-quality data collected through the Hydrologic Benchmark Network Program.","language":"ENGLISH","publisher":"U.S. Department of the Interior, U.S. Geological Survey,","doi":"10.3133/cir1173C","isbn":"0607932724","usgsCitation":"Clark, M.L., Eddy-Miller, C., and Mast, M.A., 2000, Environmental characteristics and water quality of hydrologic benchmark network stations in the west-central United States, 1963-95: U.S. Geological Survey Circular 1173, x, 115 p. :ill., maps ;28 cm., https://doi.org/10.3133/cir1173C.","productDescription":"x, 115 p. :ill., maps ;28 cm.","costCenters":[{"id":5050,"text":"WY-MT Water Science Center","active":true,"usgs":true}],"links":[{"id":61,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/circ/circ1173","linkFileType":{"id":5,"text":"html"}},{"id":123136,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/circ/2000/1173c/report-thumb.jpg"},{"id":31167,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/circ/2000/1173c/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49e6e4b07f02db5e739c","contributors":{"authors":[{"text":"Clark, Melanie L. mlclark@usgs.gov","contributorId":1827,"corporation":false,"usgs":true,"family":"Clark","given":"Melanie","email":"mlclark@usgs.gov","middleInitial":"L.","affiliations":[{"id":5050,"text":"WY-MT Water Science Center","active":true,"usgs":true}],"preferred":true,"id":148123,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Eddy-Miller, C. 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Alisa 0000-0001-6253-8162 mamast@usgs.gov","orcid":"https://orcid.org/0000-0001-6253-8162","contributorId":827,"corporation":false,"usgs":true,"family":"Mast","given":"M.","email":"mamast@usgs.gov","middleInitial":"Alisa","affiliations":[{"id":191,"text":"Colorado Water Science Center","active":true,"usgs":true}],"preferred":true,"id":148122,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":6604,"text":"fs11600 - 2000 - Effects of climate variability and human activities on Chesapeake Bay and the implications for ecosystem restoration","interactions":[],"lastModifiedDate":"2018-03-21T12:12:17","indexId":"fs11600","displayToPublicDate":"2000-09-01T00:00:00","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":"116-00","title":"Effects of climate variability and human activities on Chesapeake Bay and the implications for ecosystem restoration","docAbstract":"Chesapeake Bay, the Nation’s largest and most productive estuary (fig. 1), faces complex environmental issues related to nutrients and oxygen, turbidity and sedimentation, toxic dinoflagellates, sea-level rise, and coastal erosion. The Chesapeake Bay Program (CBP) is a partnership among the Chesapeake Bay Commission, the Federal Government, the District of Columbia, and the States of Maryland, Virginia, and Pennsylvania. The CBP is working to preserve, restore, and protect the bay’s living resources, vital habitats, and water quality, to protect human health, and to promote sound land-use policies in the watershed. The CBP began to set restoration goals for the ecosystem in the mid-1980’s and is now refining current goals and setting new ones as part of a new bay agreement— Chesapeake 2000. As the CBP sets restoration goals for the next 10–20 years, it will be critical to understand the long-term changes of the bay ecosystem due to climate variability and the influence of past and future human activities.
For the past 4 years, the U.S. Geological Survey (USGS) has been engaged in research designed to provide objective scientific answers to questions about long-term changes in the bay ecosystem:
Caribbean-Florida Water Science Center
U.S. Geological Survey
3321 College Avenue
Davie, FL 33314
This map is one of a series of large-scale (1:500,000) geologic maps of Mars initiated by the National Aeronautics and Space Administration to investigate areas of high scientific interest. The Gusev crater–Ma’adim Vallis region includes several potential landing sites for future Mars missions, including those with a focus on exobiology studies and sample return. Channels in the map area span a long age range, cut ancient rocks that may contain important biogenic information, and funneled water into exobiologically important lacustrine basins. The map area is characterized by diverse geologic units representing a variety of endogenic and exogenic processes. The geologic history of this region spans the entire history of the planet.
The base map was compiled from controlled pho-tomosaic maps of the Mars Transverse Mercator (MTM) –15182 and –15187 quadrangles (U.S. Geological Survey, 1992a, b). The map area is in the Aeolis re-gion, which was first mapped from Mariner 9 images at 1:5,000,000 scale (Scott and others, 1978) and at 1:25,000,000 scale (Scott and Carr, 1978). On the basis of Viking data, the area was later mapped at 1:15,000,000 scale (Greeley and Guest, 1987) and in part at 1:5,000,000 scale (Scott and Chapman, 1995). Recently, the area was mapped at 1:1,000,000 scale by Landheim (1995). This 1:500,000-scale map shows a great diversity of geologic materials and demonstrates a more complete understanding of fluvial processes in the highland plains, the evolution of Ma’adim Vallis, and sedimentation in Gusev crater and in de Vaucou-leurs, an ancient 300-km-diameter impact structure west of Gusev crater. Standard photogeologic mapping techniques elucidated by Wilhelms (1990) were used in this work. Viking Orbiter images used to map the area range in resolution from 63 to 70 m/pixel, with small patches at 225 m/pixel.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/i2666","isbn":"0607938390","usgsCitation":"Kuzmin, R.O., Greeley, R., Landheim, R., Cabrol, N.A., and Farmer, J.D., 2000, Geologic map of the MTM-15182 and MTM-15187 quadrangles, Gusev Crater-Ma'adim Vallis region, Mars: U.S. Geological Survey IMAP 2666, HTML Document, https://doi.org/10.3133/i2666.","productDescription":"HTML Document","costCenters":[],"links":[{"id":438891,"rank":3,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/P9DVSIG9","text":"USGS data release","linkHelpText":"Geologic map of the MTM-15182 and MTM-15187 quadrangles, Gusev Crater-Ma'adim Vallis region, Mars"},{"id":186477,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":6154,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/imap/i2666/","linkFileType":{"id":5,"text":"html"}}],"scale":"502000","otherGeospatial":"Mars","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4afde4b07f02db696c33","contributors":{"authors":[{"text":"Kuzmin, Ruslan O.","contributorId":31059,"corporation":false,"usgs":true,"family":"Kuzmin","given":"Ruslan","email":"","middleInitial":"O.","affiliations":[],"preferred":false,"id":276459,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Greeley, Ronald","contributorId":20833,"corporation":false,"usgs":true,"family":"Greeley","given":"Ronald","email":"","affiliations":[],"preferred":false,"id":276458,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Landheim, Ragnhild","contributorId":37826,"corporation":false,"usgs":true,"family":"Landheim","given":"Ragnhild","email":"","affiliations":[],"preferred":false,"id":276460,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Cabrol, Nathalie A.","contributorId":51382,"corporation":false,"usgs":true,"family":"Cabrol","given":"Nathalie","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":276461,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Farmer, Jack D.","contributorId":52272,"corporation":false,"usgs":true,"family":"Farmer","given":"Jack","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":276462,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70185674,"text":"70185674 - 2000 - Nutrient pollution of coastal rivers, bays, and seas","interactions":[],"lastModifiedDate":"2018-12-12T10:15:41","indexId":"70185674","displayToPublicDate":"2000-09-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2121,"text":"Issues in Ecology","active":true,"publicationSubtype":{"id":10}},"title":"Nutrient pollution of coastal rivers, bays, and seas","docAbstract":"Over the past 40 years, antipollution laws have greatly reduced discharges of toxic substances into our coastal waters. This effort, however, has focused largely on point-source pollution of industrial and municipal effluent. No comparable effort has been made to restrict the input of nitrogen (N) from municipal effluent, nor to control the flows of N and phosphorus (P) that enter waterways from dispersed or nonpoint sources such as agricultural and urban runoff or as airborne pollutants. As a result, inputs of nonpoint pollutants, particularly N, have increased dramatically. Nonpoint pollution from N and P now represents the largest pollution problem facing the vital coastal waters of the United States.
","language":"English","publisher":"Ecological Society of America ","usgsCitation":"Howarth, R., Anderson, D., Cloern, J., Elfring, C., Hopkinson, C., Lapointe, B., Malone, T., Marcus, N., McGlathery, K., Sharpley, A.N., and Walker, D., 2000, Nutrient pollution of coastal rivers, bays, and seas: Issues in Ecology, v. 7, p. 1-15.","productDescription":"15 p. ","startPage":"1","endPage":"15","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":338385,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"7","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58da2539e4b0543bf7fda84f","contributors":{"authors":[{"text":"Howarth, Robert ","contributorId":189871,"corporation":false,"usgs":false,"family":"Howarth","given":"Robert ","affiliations":[],"preferred":false,"id":686313,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Anderson, Donald","contributorId":189872,"corporation":false,"usgs":false,"family":"Anderson","given":"Donald","affiliations":[],"preferred":false,"id":686314,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cloern, James","contributorId":26181,"corporation":false,"usgs":true,"family":"Cloern","given":"James","affiliations":[],"preferred":false,"id":686315,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Elfring, Chris","contributorId":172803,"corporation":false,"usgs":false,"family":"Elfring","given":"Chris","email":"","affiliations":[],"preferred":false,"id":686316,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Hopkinson, Charles","contributorId":189873,"corporation":false,"usgs":false,"family":"Hopkinson","given":"Charles","affiliations":[],"preferred":false,"id":686317,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Lapointe, Brian","contributorId":172804,"corporation":false,"usgs":false,"family":"Lapointe","given":"Brian","email":"","affiliations":[],"preferred":false,"id":686318,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Malone, Tom","contributorId":189874,"corporation":false,"usgs":false,"family":"Malone","given":"Tom","email":"","affiliations":[],"preferred":false,"id":686319,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Marcus, Nancy","contributorId":172805,"corporation":false,"usgs":false,"family":"Marcus","given":"Nancy","email":"","affiliations":[],"preferred":false,"id":686320,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"McGlathery, Karen","contributorId":36057,"corporation":false,"usgs":true,"family":"McGlathery","given":"Karen","affiliations":[],"preferred":false,"id":686321,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Sharpley, Andrew N.","contributorId":189875,"corporation":false,"usgs":false,"family":"Sharpley","given":"Andrew","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":686322,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Walker, Dan","contributorId":189876,"corporation":false,"usgs":false,"family":"Walker","given":"Dan","email":"","affiliations":[],"preferred":false,"id":686323,"contributorType":{"id":1,"text":"Authors"},"rank":11}]}} ,{"id":24190,"text":"ofr0021 - 2000 - Alaska resource data file: Atka quadrangle","interactions":[],"lastModifiedDate":"2025-05-29T18:30:03.489762","indexId":"ofr0021","displayToPublicDate":"2000-09-01T00:00:00","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":"2000-21","title":"Alaska resource data file: Atka quadrangle","docAbstract":"No abstract available.
","language":"English","publisher":"U.S. Geological Survey,","doi":"10.3133/ofr0021","issn":"0094-9140","usgsCitation":"Pilcher, S.H., 2000, Alaska resource data file: Atka quadrangle: U.S. Geological Survey Open-File Report 2000-21, 4 p., https://doi.org/10.3133/ofr0021.","productDescription":"4 p.","costCenters":[],"links":[{"id":53333,"rank":4,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2000/0021/ofr0021.pdf","size":"84.0 KB","linkFileType":{"id":1,"text":"pdf"},"description":"OFR 00-021"},{"id":391043,"rank":2,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_25663.htm"},{"id":157133,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/2000/0021/report-thumb.jpg"},{"id":1596,"rank":3,"type":{"id":18,"text":"Project Site"},"url":"https://doi.org/10.5066/P96MMRFD","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Alaska","otherGeospatial":"Atka quadrangle","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -176,\n 51.783\n ],\n [\n -174,\n 51.783\n ],\n [\n -174,\n 52.5\n ],\n [\n -176,\n 52.5\n ],\n [\n -176,\n 51.783\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae3e4b07f02db688ef0","contributors":{"authors":[{"text":"Pilcher, Steven H.","contributorId":29852,"corporation":false,"usgs":true,"family":"Pilcher","given":"Steven","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":191470,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":35475,"text":"b2177 - 2000 - The Nor Arevik coal deposit, southern Armenia","interactions":[],"lastModifiedDate":"2012-02-02T00:09:41","indexId":"b2177","displayToPublicDate":"2000-09-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":306,"text":"Bulletin","code":"B","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2177","title":"The Nor Arevik coal deposit, southern Armenia","language":"ENGLISH","publisher":"U.S. Dept. of Interior, U.S. Geological Survey,","doi":"10.3133/b2177","usgsCitation":"Pierce, B.S., Malkhasian, G., and Martirosyan, A., 2000, The Nor Arevik coal deposit, southern Armenia: U.S. Geological Survey Bulletin 2177, 66 p., https://doi.org/10.3133/b2177.","productDescription":"66 p.","costCenters":[],"links":[{"id":166821,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":3411,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/bul/b2177/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac7e4b07f02db67af7d","contributors":{"authors":[{"text":"Pierce, Brenda S. bpierce@usgs.gov","contributorId":268,"corporation":false,"usgs":true,"family":"Pierce","given":"Brenda","email":"bpierce@usgs.gov","middleInitial":"S.","affiliations":[],"preferred":true,"id":214704,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Malkhasian, Gourgen","contributorId":20800,"corporation":false,"usgs":true,"family":"Malkhasian","given":"Gourgen","email":"","affiliations":[],"preferred":false,"id":214705,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Martirosyan, Artur","contributorId":70812,"corporation":false,"usgs":true,"family":"Martirosyan","given":"Artur","email":"","affiliations":[],"preferred":false,"id":214706,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":67332,"text":"i2697 - 2000 - Geologic Map of the Tower Peak Quadrangle, Central Sierra Nevada, California","interactions":[],"lastModifiedDate":"2012-02-10T00:11:18","indexId":"i2697","displayToPublicDate":"2000-09-01T00:00:00","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":"2697","subseriesTitle":"GIS","title":"Geologic Map of the Tower Peak Quadrangle, Central Sierra Nevada, California","docAbstract":"Introduction\r\n\r\nThe Tower Peak quadrangle, which includes northernmost Yosemite National Park, is located astride the glaciated crest of the central Sierra Nevada and covers an exceptionally well-exposed part of the Sierra Nevada batholith. Granitic plutonic rocks of the batholith dominate the geology of the Tower Peak quadrangle, and at least 18 separate pre-Tertiary intrusive events have been identified. Pre-Cretaceous metamorphic rocks crop out in the quadrangle in isolated roof pendants and septa. Tertiary volcanic rocks cover granitic rocks in the northern part of the quadrangle, but are not considered in this brief summary.\r\n\r\nPotassium-argon (K-Ar) age determinations for plutonic rocks in the quadrangle range from 83 to 96 million years (Ma), including one of 86 Ma for the granodiorite of Lake Harriet (Robinson and Kistler, 1986). However, a rubidium-strontium whole-rock isochron age of 129 Ma has been obtained for the Lake Harriet pluton (Robinson and Kistler, 1986), which field evidence indicates is the oldest plutonic body within the quadrangle. This suggests that some of the K-Ar ages record an episode of resetting during later thermal events and are too young. The evidence indicates that all the plutonic rocks are of Cretaceous age, with the youngest being the Cathedral Peak Granodiorite at about 83 Ma.\r\n\r\nThe pre-Tertiary rocks of the Tower Peak quadrangle fall into two groups: (1) an L-shaped area of older plutonic and metamorphic rocks, 3 to 10 km wide, that extends diagonally both northeast and southeast from near the center of the quadrangle; and (2) a younger group of large, probably composite intrusions that cover large areas in adjacent quadrangles and extend into the Tower Peak quadrangle from the east, north, and southwest.","language":"ENGLISH","publisher":"Geological Survey (U.S.)","doi":"10.3133/i2697","isbn":"0607942622","usgsCitation":"Wahrhaftig, C., 2000, Geologic Map of the Tower Peak Quadrangle, Central Sierra Nevada, California (Online Version 1.0): U.S. Geological Survey IMAP 2697, 1 map :col. ;45 x 35 cm., on sheet 61 x 98 cm., folded in envelope 30 x 24 cm., https://doi.org/10.3133/i2697.","productDescription":"1 map :col. ;45 x 35 cm., on sheet 61 x 98 cm., folded in envelope 30 x 24 cm.","costCenters":[{"id":647,"text":"Western Earth Surface Processes","active":false,"usgs":true}],"links":[{"id":110124,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_33666.htm","linkFileType":{"id":5,"text":"html"},"description":"33666"},{"id":188392,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":9386,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/imap/i2697/","linkFileType":{"id":5,"text":"html"}}],"scale":"62500","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -119.75,38 ], [ -119.75,38.25 ], [ -119.5,38.25 ], [ -119.5,38 ], [ -119.75,38 ] ] ] } } ] }","edition":"Online Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b1ae4b07f02db6a8409","contributors":{"authors":[{"text":"Wahrhaftig, Clyde","contributorId":102473,"corporation":false,"usgs":true,"family":"Wahrhaftig","given":"Clyde","email":"","affiliations":[],"preferred":false,"id":276000,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":6531,"text":"pp1616 - 2000 - A geologic guide to Wrangell-Saint Elias National Park and Preserve, Alaska: A tectonic collage of northbound terranes","interactions":[],"lastModifiedDate":"2026-01-23T16:12:06.419941","indexId":"pp1616","displayToPublicDate":"2000-09-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":331,"text":"Professional Paper","code":"PP","onlineIssn":"2330-7102","printIssn":"1044-9612","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"1616","title":"A geologic guide to Wrangell-Saint Elias National Park and Preserve, Alaska: A tectonic collage of northbound terranes","docAbstract":"Wrangell-Saint Elias National Park and Preserve, the largest unit in the U.S. National Park System, encompasses near 13.2 million acres of geological wonderments. This geologic guide presents history of exploration and Earth-science investigation; describes the complex geologic makeup; characterizes the vast college of accretion geologic terranes in this area of Alaska's continental margin; recapitulates the effects of earthquakes, volcanoes, and glaciers; characterizes the copper and gold resources of the parklands; and describes outstanding locales within the park and preserve area. A glossary of geologic terms and a categorized list of additional sources of information complete this report.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/pp1616","usgsCitation":"Winkler, G., MacKevett, E.M., Plafker, G., Richter, D., Rosenkrans, D., and Schmoll, H., 2000, A geologic guide to Wrangell-Saint Elias National Park and Preserve, Alaska: A tectonic collage of northbound terranes (Version 1.0): U.S. Geological Survey Professional Paper 1616, 166 p., https://doi.org/10.3133/pp1616.","productDescription":"166 p.","costCenters":[],"links":[{"id":426214,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_33540.htm","linkFileType":{"id":5,"text":"html"}},{"id":825,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/pp/p1616/","linkFileType":{"id":5,"text":"html"}},{"id":124702,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/pp_1616.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Wrangell-Saint Elias National Park and Preserve","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -145.79126197083673,\n 62.77065372258221\n ],\n [\n -145.0178370915535,\n 59.81781863662275\n ],\n [\n -140.6618147245958,\n 59.81781863662275\n ],\n [\n -140.9742657890178,\n 62.59558790284228\n ],\n [\n -145.79126197083673,\n 62.77065372258221\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b24e4b07f02db6ae64c","contributors":{"authors":[{"text":"Winkler, Gary R.","contributorId":75513,"corporation":false,"usgs":true,"family":"Winkler","given":"Gary R.","affiliations":[],"preferred":false,"id":152881,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"MacKevett, Edward M. Jr.","contributorId":72447,"corporation":false,"usgs":true,"family":"MacKevett","given":"Edward","suffix":"Jr.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":895777,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Plafker, George","contributorId":3920,"corporation":false,"usgs":false,"family":"Plafker","given":"George","email":"","affiliations":[],"preferred":false,"id":152876,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Richter, D.H.","contributorId":43325,"corporation":false,"usgs":true,"family":"Richter","given":"D.H.","email":"","affiliations":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"preferred":false,"id":152877,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Rosenkrans, D. S.","contributorId":53795,"corporation":false,"usgs":true,"family":"Rosenkrans","given":"D. S.","affiliations":[],"preferred":false,"id":152878,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Schmoll, H. R.","contributorId":71543,"corporation":false,"usgs":true,"family":"Schmoll","given":"H. R.","affiliations":[],"preferred":false,"id":152880,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":66531,"text":"i2637 - 2000 - Geologic map of the Sappho Patera Quadrangle (V-20), Venus","interactions":[],"lastModifiedDate":"2016-12-28T14:09:49","indexId":"i2637","displayToPublicDate":"2000-09-01T00:00:00","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":"2637","subseriesTitle":"GIS","title":"Geologic map of the Sappho Patera Quadrangle (V-20), Venus","docAbstract":"The Sappho Patera quadrangle (V–20) of Venus is bounded by 0° and 30° East longitude, 0° and 25° North latitude. It is one of 62 quadrangles covering the entire planet at a scale of 1:5,000,000. The quadrangle derives its name from Sappho Patera, a large rimmed depression (diameter about 225 km) lying on top of a shield-shaped mountain named Irnini Mons. Sappho, a noted Greek poet born about 612 B.C., spent most of her life on the island of Lesbos. All of her works were burned in 1073 by order of ecclesiastical authorities in Rome and Constantinople. What little survives was discovered in 1897 as parts of papier mâché coffins in the Fayum (Durant, 1939). The Sappho Patera quadrangle includes the central portion of Eistla Regio, an elongated, moderately elevated (relief ~1 km) region extending for about 7,500 km west-northwestward from the west end of Aphrodite Terra. It is generally interpreted to be the surface manifestation of one or more mantle plumes (Phillips and Malin, 1983; Stofan and Saunders, 1990; Kiefer and Hager, 1991; Senske and others, 1992; Grimm and Phillips, 1992; Solomon and others, 1992). Eistla Regio is dominated by several large volcanic features. All or parts of four of these occur within the Sappho Patera quadrangle: the eastern flank of Gula Mons, Irnini Mons, Anala Mons, and Kali Mons. The quadrangle also includes eight named coronae: Nehalennia, Sunrta, Libera, Belet-Ili, Gaia, Asomama, Rabzhima, and Changko. A major rift extends from Gula Mons in the northwestern corner of the quadrangle to Libera Corona near the east border. East of Irnini and Anala Montes this rift is named Guor Linea; west of the montes it is named Virtus Linea. In addition to these major features, the Sappho Patera quadrangle includes numerous smaller volcanic flows and constructs, several unnamed coronae and corona-like features, a complex array of faults, fractures, and wrinkle ridges, and extensive plains that are continuous with the regional plains that constitute about 80% of the surface of Venus (Masursky and others, 1980). This area is geologically interesting because it contains examples of most globally important types of features and deposits and is an excellent area to study the temporal and genetic relations among plains, rifts, coronae, and large shield volcanoes. The temporal relations displayed in this quadrangle can provide useful constraints on models for venusian tectonic style (McGill, 1994b).","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/i2637","isbn":"0607938366","usgsCitation":"McGill, G.E., 2000, Geologic map of the Sappho Patera Quadrangle (V-20), Venus: U.S. Geological Survey IMAP 2637, Report: 15 p.; 1 Plate: 42.25 x 33.50 inches; Purchasing information, https://doi.org/10.3133/i2637.","productDescription":"Report: 15 p.; 1 Plate: 42.25 x 33.50 inches; Purchasing information","numberOfPages":"15","costCenters":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"links":[{"id":438890,"rank":401,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/P98QT8J2","text":"USGS data release","linkHelpText":"Geologic map of the Sappho Patera Quadrangle (V-20), Venus"},{"id":91575,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/imap/2637/pdf/I2637pamphlet.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":188770,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/imap/2637/report-thumb.jpg"},{"id":6126,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/imap/2637/","linkFileType":{"id":5,"text":"html"}},{"id":91574,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/imap/2637/pdf/I2637.pdf","linkFileType":{"id":1,"text":"pdf"}}],"scale":"5198991","otherGeospatial":"Venus","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae6e4b07f02db68b7b5","contributors":{"authors":[{"text":"McGill, George E.","contributorId":47462,"corporation":false,"usgs":true,"family":"McGill","given":"George","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":274667,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":24191,"text":"ofr0028 - 2000 - Alaska resource data file: Attu quadrangle","interactions":[],"lastModifiedDate":"2025-05-29T18:48:33.460484","indexId":"ofr0028","displayToPublicDate":"2000-09-01T00:00:00","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":"2000-28","title":"Alaska resource data file: Attu quadrangle","docAbstract":"No abstract available.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr0030","issn":"0094-9140","usgsCitation":"Pilcher, S.H., 2000, Alaska resource data file: Gareloi Island quadrangle: U.S. Geological Survey Open-File Report 2000-30, 4 p., https://doi.org/10.3133/ofr0030.","productDescription":"4 p.","costCenters":[],"links":[{"id":487132,"rank":4,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2000/0030/ofr20000030.pdf","text":"Report","size":"87.8 KB","linkFileType":{"id":1,"text":"pdf"},"description":"2000-0030"},{"id":391180,"rank":2,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_25693.htm"},{"id":157136,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/2000/0030/report-thumb.jpg"},{"id":1599,"rank":3,"type":{"id":18,"text":"Project Site"},"url":"https://doi.org/10.5066/P96MMRFD","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Alaska","otherGeospatial":"Gareloi Island","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -179.62646484375,\n 51.27222592445553\n ],\n [\n -178.08837890625,\n 51.27222592445553\n ],\n [\n -178.08837890625,\n 51.984880139916626\n ],\n [\n -179.62646484375,\n 51.984880139916626\n ],\n [\n -179.62646484375,\n 51.27222592445553\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae0e4b07f02db688358","contributors":{"authors":[{"text":"Pilcher, Steven H.","contributorId":29852,"corporation":false,"usgs":true,"family":"Pilcher","given":"Steven","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":191473,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":24088,"text":"ofr0055 - 2000 - Application of a sediment-transport model to evaluate the effect of streambed-management practices on flood levels and streambed elevations at selected sites in Vermont","interactions":[],"lastModifiedDate":"2023-03-21T21:25:39.821258","indexId":"ofr0055","displayToPublicDate":"2000-09-01T00:00:00","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":"2000-55","title":"Application of a sediment-transport model to evaluate the effect of streambed-management practices on flood levels and streambed elevations at selected sites in Vermont","docAbstract":"No abstract available.
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2000 - Planktic foraminifer census data and delta 18O and delta 13C analyses of Globigerinoides ruber from Marine Isotope Stage 11 sediments from Ocean Drilling Program (ODP) Site 1002","interactions":[],"lastModifiedDate":"2012-02-02T00:08:05","indexId":"ofr0035","displayToPublicDate":"2000-09-01T00:00:00","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":"2000-35","title":"Planktic foraminifer census data and delta 18O and delta 13C analyses of Globigerinoides ruber from Marine Isotope Stage 11 sediments from Ocean Drilling Program (ODP) Site 1002","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/ofr0035","issn":"0094-9140","usgsCitation":"Poore, R.Z., Schroeder, J., and McMahon, A., 2000, Planktic foraminifer census data and delta 18O and delta 13C analyses of Globigerinoides ruber from Marine Isotope Stage 11 sediments from Ocean Drilling Program (ODP) Site 1002: U.S. Geological Survey Open-File Report 2000-35, 12 p. ill., map ;28 cm., https://doi.org/10.3133/ofr0035.","productDescription":"12 p. ill., map ;28 cm.","costCenters":[],"links":[{"id":155549,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/2000/0035/report-thumb.jpg"},{"id":53357,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2000/0035/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4adae4b07f02db6855c4","contributors":{"authors":[{"text":"Poore, Richard Z. rpoore@usgs.gov","contributorId":345,"corporation":false,"usgs":true,"family":"Poore","given":"Richard","email":"rpoore@usgs.gov","middleInitial":"Z.","affiliations":[{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":191520,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schroeder, J.","contributorId":99180,"corporation":false,"usgs":true,"family":"Schroeder","given":"J.","email":"","affiliations":[],"preferred":false,"id":191522,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"McMahon, A.","contributorId":52998,"corporation":false,"usgs":true,"family":"McMahon","given":"A.","email":"","affiliations":[],"preferred":false,"id":191521,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":24106,"text":"ofr0041 - 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