These summaries of references are designed to aid in library research on metallic and nonmetallic (other than mineral fuels and construction materials) mineral occurrences in the Charley River and Coleen quadrangles in east-central Alaska. All references to reports of the Geological Survey, to most reports of the U.S. Bureau of Mines, and to most reports of the State of Alaska Division of Geological and Geophysical Surveys and its predecessor State and Territorial agencies released before January 1, 1976, are summarized. Certain, mainly statistical, reports such as the annual Minerals Yearbook of the U.S. Bureau of Mines and the biennial and annual reports of the State of Alaska Division of Geological and Geophysical Surveys and its predecessor State and Territorial agencies are not included.
This report is divided into three parts: a section made up of summaries of references arranged alphabetically first by quadrangle and second by occurrence name; a section that lists synonyms for names in the first section, claim names, and the names of operators and owners of mines and prospects; and a section that lists, by author, all references summarized in the first section.
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","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/b1385E","usgsCitation":"Weis, P., Gualtieri, J.L., Cannon, W.F., Tuchek, E.T., McMahan, A.B., and Federspiel, F.E., 1976, Mineral resources of the Eagle Cap Wilderness and adjacent areas, Oregon: U.S. Geological Survey Bulletin 1385, Report: ix, 100 p.; 2 Plates: 40.30 x 43.51 inches and 38.51 x 40.94 inches, https://doi.org/10.3133/b1385E.","productDescription":"Report: ix, 100 p.; 2 Plates: 40.30 x 43.51 inches and 38.51 x 40.94 inches","costCenters":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"links":[{"id":61242,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/bul/1385e/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":164237,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/bul/1385e/report-thumb.jpg"},{"id":95971,"rank":4,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/bul/1385e/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":95970,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/bul/1385e/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":109713,"rank":5,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_21496.htm","linkFileType":{"id":5,"text":"html"},"description":"21496"}],"country":"United States","state":"Oregon","otherGeospatial":"Eagle Cap Wilderness","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -117.042,\n 45.517\n ],\n [\n -117.733,\n 45.517\n ],\n [\n -117.733,\n 45\n ],\n [\n -117.042,\n 45\n ],\n [\n -117.042,\n 45.517\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a93e4b07f02db657fa5","contributors":{"authors":[{"text":"Weis, Paul L.","contributorId":102872,"corporation":false,"usgs":true,"family":"Weis","given":"Paul L.","affiliations":[],"preferred":false,"id":210796,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gualtieri, J. 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S. Geological Survey began a regional reconnaissance in 1974. The study area, which extends from Prince William Sound on the west to Yakutat Bay on the east, is in a region fraught with natural hazards. The tectonic history of the area suggests that future major earthquakes could pose serious hazards to installations on the continental shelf or along the coast of the Gulf of Alaska. The hazard may be either direct, by ground shaking or fault displacement, or indirect, through ground failure or generation of tsunami waves. Storm waves sometimes are responsible for ground failures, especially in areas of rapid accumulation of sediment.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr76206","usgsCitation":"Molnia, B.F., Carlson, P.R., and Bruns, T.R., 1976, Report on the environmental geology OCS area, eastern Gulf of Alaska: U.S. Geological Survey Open-File Report 76-206, 28 p., https://doi.org/10.3133/ofr76206.","productDescription":"28 p.","costCenters":[],"links":[{"id":419458,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1976/0206/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":148074,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1976/0206/report-thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"eastern Gulf of Alaska","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -150.30411340796635,\n 60.79330727975059\n ],\n [\n -150.30411340796635,\n 58.63019074389118\n ],\n [\n -138.8408174572727,\n 58.63019074389118\n ],\n [\n -138.8408174572727,\n 60.79330727975059\n ],\n [\n -150.30411340796635,\n 60.79330727975059\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a58e4b07f02db62f56f","contributors":{"authors":[{"text":"Molnia, Bruce F. bmolnia@usgs.gov","contributorId":4002,"corporation":false,"usgs":true,"family":"Molnia","given":"Bruce","email":"bmolnia@usgs.gov","middleInitial":"F.","affiliations":[{"id":410,"text":"National Center","active":false,"usgs":true}],"preferred":false,"id":170434,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Carlson, Paul R.","contributorId":81469,"corporation":false,"usgs":true,"family":"Carlson","given":"Paul","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":170436,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bruns, Terry R.","contributorId":29420,"corporation":false,"usgs":true,"family":"Bruns","given":"Terry","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":170435,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":10758,"text":"ofr76393 - 1976 - Statistical analysis of water-level, springflow, and streamflow data for the Edwards Aquifer in south-central Texas","interactions":[],"lastModifiedDate":"2016-08-10T16:31:05","indexId":"ofr76393","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1976","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":"76-393","title":"Statistical analysis of water-level, springflow, and streamflow data for the Edwards Aquifer in south-central Texas","docAbstract":"Water-level, springflow, and streamflow data were used to develop simple and multiple linear-regression equations for use in estimating water levels in wells and the flow of three major springs in the Edwards aquifer in the eastern San Antonio area. The equations provide daily, monthly, and annual estimates that compare very favorably with observed data. Analyses of geologic and hydrologic data indicate that the water discharged by the major springs is supplied primarily by regional underflow from the west and southwest and by local recharge in the infiltration area in northern Bexar, Comal, and Hays Counties.
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","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr76825","usgsCitation":"Sharp, W.N., and Gualtieri, J.L., 1976, Analytical data from geologic sampling in the eastern San Juan Mountains, Colorado 1966 to 1968: U.S. Geological Survey Open-File Report 76-825, Report: 6 p.; 31 Plates: 33.35 × 19.06 inches or smaller, https://doi.org/10.3133/ofr76825.","productDescription":"Report: 6 p.; 31 Plates: 33.35 × 19.06 inches or smaller","costCenters":[],"links":[{"id":391186,"rank":34,"type":{"id":36,"text":"NGMDB Index 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occurs within the State of Nevada (fig. 1) and includes parts of Mineral and Esmeralda Counties. In this area field crews of the U.S. Geological Survey have established 95 gravity observations in conjunction with geologic studies being made as part of the Nevada tectonic project. The principal gravity reference base station was Tonopah J, located at the Nye County Airport, 8 miles (12.9 km) east of Tonopah, Nev. The observed gravity value for this base is 979,476.15 mGals (Department of the Air Force, written commun., 1969).
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr7658","usgsCitation":"Healey, D., 1976, Principal facts for gravity stations in the Nevada portion of the Mariposa 2 degrees sheet: U.S. Geological Survey Open-File Report 76-58, 10 p., https://doi.org/10.3133/ofr7658.","productDescription":"10 p.","costCenters":[],"links":[{"id":426080,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1976/0058/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":147142,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1976/0058/report-thumb.jpg"}],"country":"United States","state":"Nevada","county":"Esmeralda County, Mineral County","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -118.43781094436912,\n 38.008977151547384\n ],\n [\n -118.43781094436912,\n 37.40053758365461\n ],\n [\n -117.03156094436906,\n 37.40053758365461\n ],\n [\n -117.03156094436906,\n 38.008977151547384\n ],\n [\n -118.43781094436912,\n 38.008977151547384\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae4e4b07f02db68a38d","contributors":{"authors":[{"text":"Healey, D.L.","contributorId":52964,"corporation":false,"usgs":true,"family":"Healey","given":"D.L.","email":"","affiliations":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"preferred":false,"id":168852,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":9009,"text":"ofr7622 - 1976 - Data for calibrating unsteady-flow sediment-transport models, East Fork River, Wyoming, 1975","interactions":[],"lastModifiedDate":"2017-03-23T16:27:10","indexId":"ofr7622","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1976","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":"76-22","title":"Data for calibrating unsteady-flow sediment-transport models, East Fork River, Wyoming, 1975","docAbstract":"In 1975, data to calibrate a one-dimensional unsteady-flow and sediment-transport routing model were collected on a reach of the East Fork River of western Wyoming. The reach, 3.1 miles (5 kilometers) in length, wan immediately upstream from a previously established bedload sampling station. Nineteen channel cross sections were sounded at regular intervals during the spring-runoff period. Four stage recorders provided continuous records of water-surface elevations. Samples of bed material at most of the cross sections were obtained prior to high water. Streamflow and sediment-discharge measurements were collected at four of the sections.
The physiography and hydrology of the contributing watershed, the study reach, and the equipment and techniques used in data collection are described briefly. The bulk of the report is a presentation of data for the several-week period of late May to early June 1975, for which concurrent water discharge data, bedload transport and size data, and cross-section depth measurements were collected. In addition, some data collected in 1973 and 1974 and before and after the calibration period in 1975 are included for completeness.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Denver, CO","doi":"10.3133/ofr7622","usgsCitation":"Mahoney, H.A., Andrews, E.D., Emmett, W.W., Leopold, L.B., Meade, R.H., Myrick, R.M., and Nordin, C.F., 1976, Data for calibrating unsteady-flow sediment-transport models, East Fork River, Wyoming, 1975: U.S. Geological Survey Open-File Report 76-22, ix, 293 p., https://doi.org/10.3133/ofr7622.","productDescription":"ix, 293 p.","numberOfPages":"309","costCenters":[],"links":[{"id":140802,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1976/0022/report-thumb.jpg"},{"id":36646,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1976/0022/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Wyoming","otherGeospatial":"East Fork River","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a07e4b07f02db5f9bb6","contributors":{"authors":[{"text":"Mahoney, Holly A.","contributorId":39781,"corporation":false,"usgs":true,"family":"Mahoney","given":"Holly","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":158753,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Andrews, Edmund D. eandrews@usgs.gov","contributorId":3828,"corporation":false,"usgs":true,"family":"Andrews","given":"Edmund","email":"eandrews@usgs.gov","middleInitial":"D.","affiliations":[],"preferred":true,"id":158749,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Emmett, William W.","contributorId":68715,"corporation":false,"usgs":true,"family":"Emmett","given":"William","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":158755,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Leopold, Luna Bergere","contributorId":93884,"corporation":false,"usgs":true,"family":"Leopold","given":"Luna","email":"","middleInitial":"Bergere","affiliations":[],"preferred":false,"id":158752,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Meade, Robert H. 0000-0002-4965-3040 rhmeade@usgs.gov","orcid":"https://orcid.org/0000-0002-4965-3040","contributorId":2744,"corporation":false,"usgs":true,"family":"Meade","given":"Robert","email":"rhmeade@usgs.gov","middleInitial":"H.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":158754,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Myrick, Robert M.","contributorId":24345,"corporation":false,"usgs":true,"family":"Myrick","given":"Robert","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":158751,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Nordin, Carl F.","contributorId":68297,"corporation":false,"usgs":true,"family":"Nordin","given":"Carl","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":158750,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":9395,"text":"ofr76844 - 1976 - Preliminary summary of the 1976 Atlantic Margin Coring Project of the U.S. Geological Survey","interactions":[],"lastModifiedDate":"2017-11-05T09:51:59","indexId":"ofr76844","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1976","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":"76-844","title":"Preliminary summary of the 1976 Atlantic Margin Coring Project of the U.S. Geological Survey","docAbstract":"The U.S. Geological Survey Atlantic Margin Coring Project, 1976, a 60-day expedition to obtain core samples by drilling beneath the floor of the Continental Shelf and Slope of the eastern United States, was carried out in July, August, and September 1976 aboard D/V GLOMAR CONCEPTION. The coring penetrated as much as 310 meters below the sea floor at 19 sites along the continental margin from Georgia to Georges Bank off New England in water depths ranging from 20 to 300 meters; 1,020 meters of material were recovered in 380 cores, ranging in age from Late Cretaceous to Holocene. One of the major findings was the discovery of relatively fresh water (salinities less than 3 parts per thousand) extending beneath the Continental Shelf as much as 60 nautical miles seaward from the New Jersey coast. Water of about 1 part per thousand salinity was found beneath the shelf more than 7 nautical miles off Ocean City, Maryland and Barnegat Inlet, New Jersey. Analyses for light hydrocarbons in the cores show the highest concentrations (as much as 412,000 ppm) at sites in water depth greater than 200 meters (the shelf-slope break), principally in Pleistocene sediments, although methane concentrations greater than 400,000 ppm also were found in Miocene sediments at one site near the shelf edge. (Woodard-USGS)","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr76844","usgsCitation":"Hathaway, J.C., Schlee, J., Poag, C.W., Valentine, P.C., Weed, E.G., Bothner, M., Kohout, F.A., Manheim, F., Schloam, R., Miller, R., and Schultz, D., 1976, Preliminary summary of the 1976 Atlantic Margin Coring Project of the U.S. Geological Survey: U.S. Geological Survey Open-File Report 76-844, 217 p., https://doi.org/10.3133/ofr76844.","productDescription":"217 p.","costCenters":[],"links":[{"id":142922,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1976/0844/report-thumb.jpg"},{"id":37111,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1976/0844/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b06e4b07f02db69a12f","contributors":{"authors":[{"text":"Hathaway, John Cummins","contributorId":95477,"corporation":false,"usgs":true,"family":"Hathaway","given":"John","email":"","middleInitial":"Cummins","affiliations":[],"preferred":false,"id":159611,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schlee, J.J.","contributorId":23542,"corporation":false,"usgs":true,"family":"Schlee","given":"J.J.","email":"","affiliations":[],"preferred":false,"id":159604,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Poag, C. W.","contributorId":16402,"corporation":false,"usgs":true,"family":"Poag","given":"C.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":159603,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Valentine, P. C.","contributorId":46505,"corporation":false,"usgs":true,"family":"Valentine","given":"P.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":159605,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Weed, Elaine G. A.","contributorId":91496,"corporation":false,"usgs":true,"family":"Weed","given":"Elaine","email":"","middleInitial":"G. A.","affiliations":[],"preferred":false,"id":159610,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Bothner, Michael H. mbothner@usgs.gov","contributorId":139855,"corporation":false,"usgs":true,"family":"Bothner","given":"Michael H.","email":"mbothner@usgs.gov","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":159607,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Kohout, F. A.","contributorId":11593,"corporation":false,"usgs":true,"family":"Kohout","given":"F.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":159602,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Manheim, F.T. 0000-0003-4005-4524","orcid":"https://orcid.org/0000-0003-4005-4524","contributorId":55421,"corporation":false,"usgs":true,"family":"Manheim","given":"F.T.","affiliations":[],"preferred":false,"id":159606,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Schloam, R.","contributorId":71550,"corporation":false,"usgs":true,"family":"Schloam","given":"R.","email":"","affiliations":[],"preferred":false,"id":159608,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Miller, R.E.","contributorId":86754,"corporation":false,"usgs":true,"family":"Miller","given":"R.E.","email":"","affiliations":[],"preferred":false,"id":159609,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Schultz, D.M.","contributorId":98310,"corporation":false,"usgs":true,"family":"Schultz","given":"D.M.","email":"","affiliations":[],"preferred":false,"id":159612,"contributorType":{"id":1,"text":"Authors"},"rank":11}]}} ,{"id":4231,"text":"cir734 - 1976 - The Alaskan Mineral Resource Assessment Program: Background information to accompany folio of geologic and mineral resource maps of the Tanacross quadrangle, Alaska","interactions":[],"lastModifiedDate":"2021-10-28T21:16:16.877528","indexId":"cir734","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1976","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":"734","title":"The Alaskan Mineral Resource Assessment Program: Background information to accompany folio of geologic and mineral resource maps of the Tanacross quadrangle, Alaska","docAbstract":"The Tanacross quadrangle, consisting of 17,400 km 2 (6,700 mi 2) in east-central Alaska, was investigated by an interdisciplinary research team for the purpose of assessing the mineral resource potential of the quadrangle. This report provides the background information for a folio of maps on the geology, geophysics, reconnaissance geochemistry, Landsat imagery, and mineral resource evaluation of the quadrangle. Revisions to the previously published geologic map of the Tanacross quadrangle, 18 new potassium-argon ages, and a comprehensive bibliography are also included.","language":"English","publisher":"U.S. Geological Survey,","doi":"10.3133/cir734","usgsCitation":"Foster, H.L., Albert, N.R., Barnes, D., Curtin, G., Griscom, A., Singer, D., and Smith, J., 1976, The Alaskan Mineral Resource Assessment Program: Background information to accompany folio of geologic and mineral resource maps of the Tanacross quadrangle, Alaska: U.S. Geological Survey Circular 734, iv, 23 p., https://doi.org/10.3133/cir734.","productDescription":"iv, 23 p.","costCenters":[],"links":[{"id":31345,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/circ/1976/0734/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":139309,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/circ/1976/0734/report-thumb.jpg"},{"id":391119,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_24019.htm"}],"country":"United States","state":"Alaska","otherGeospatial":"Tanacross quadrangle","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -144,\n 64.250\n ],\n [\n -141,\n 64.250\n ],\n [\n -141,\n 63\n ],\n [\n -144,\n 63\n ],\n [\n -144,\n 64.250\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad5e4b07f02db68346d","contributors":{"authors":[{"text":"Foster, Helen Laura","contributorId":21936,"corporation":false,"usgs":true,"family":"Foster","given":"Helen","email":"","middleInitial":"Laura","affiliations":[],"preferred":false,"id":148490,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Albert, N. R. D.","contributorId":63789,"corporation":false,"usgs":true,"family":"Albert","given":"N.","email":"","middleInitial":"R. D.","affiliations":[],"preferred":false,"id":148494,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Barnes, D.F.","contributorId":48960,"corporation":false,"usgs":true,"family":"Barnes","given":"D.F.","email":"","affiliations":[],"preferred":false,"id":148493,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Curtin, G.C.","contributorId":89501,"corporation":false,"usgs":true,"family":"Curtin","given":"G.C.","email":"","affiliations":[],"preferred":false,"id":148496,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Griscom, Andrew","contributorId":23520,"corporation":false,"usgs":true,"family":"Griscom","given":"Andrew","email":"","affiliations":[],"preferred":false,"id":148491,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Singer, D.A.","contributorId":69128,"corporation":false,"usgs":true,"family":"Singer","given":"D.A.","email":"","affiliations":[],"preferred":false,"id":148495,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Smith, James G.","contributorId":44534,"corporation":false,"usgs":true,"family":"Smith","given":"James G.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":false,"id":148492,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":6145,"text":"pp938 - 1976 - Platinum deposits of the Goodnews Bay district, Alaska","interactions":[],"lastModifiedDate":"2025-05-23T18:41:52.62197","indexId":"pp938","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1976","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":"938","title":"Platinum deposits of the Goodnews Bay district, Alaska","docAbstract":"Platinum placers were discovered in 1926 in a small area south of Goodnews Bay, in southwestern Alaska. Beginning in 1927, the placers were worked for 7 years by small-scale mining methods; in later years dragline excavators and a dredge were utilized. These deposits are important, not only because they are of high grade but because they are the only commercial source of platinum metals in the United States.
The bedded rocks of this area are sedimentary and volcanic rocks of late Paleozoic(?) age that have been intruded by a variety of ultrabasic rocks. The platinum metals of the placers have been derived from a mass of dunite and related rocks that constitute the bedrock of Red Mountain in the upper valley of the Salmon River. The western headwater tributaries of this stream are the fluvial conduits that have produced all the placers in the valley of the river.
The principal placers lie in two pay streaks, one in the valley floor of the Salmon River and the other in an ancient stream channel along the east side of this valley. The stream-channel deposit, called the bench pay streak, was formed in early Pleistocene time; its alluvial materials consist largely of clay derived from an ancient moraine believed to be of Nebraskan age. The valley-floor deposit, called the pay streak of the valley floor, consists of alluvial materials of fluvial and glaciofluvial origin whose ages range from Yarmouth to Holocene. Both channels contain high-grade placers that have yielded a large volume of platinum metals.
The platinum metals of these deposits are contained mainly in two alloys intergrown in a pseudoeutectic fabric. The major alloy is mainly platinum, with a small amount of iridium, still smaller amounts of rhodium and palladium, and probably some osmium and ruthenium. The minor alloy is dominantly iridium and osmium with less platinum and still less ruthenium and rhodium. The compositions of these two alloys are somewhat variable but tend to approach constant mean values. A small amount of free gold is recovered with the platinum metals. In addition to these two alloys, minute amounts of five platinum minerals have been identified. The weighted mean percentages of platinum, iridium, osmium, ruthenium, rhodium, palladium, and gold, as mined from 1936 to 1972, are respectively 82.25, 11.32, 2.15, 0.17, 1.30, 0.38, and 2.43.
The lodes from which these placers have been derived are, or have been, localized in the Red Mountain ridge, where the principal rocks are dunite and serpentinite. No lodes have been recognized, either because the platinum metals are sparsely distributed or because a large part of the platiniferous rock has been eroded. It is known, however, that the amounts of iridium, osmium, and ruthenium, or of osmiridium, decrease from south to north. Other generalizations regarding the composition and granularity of these metals have been deduced. The size and shape of the platinum lodes may have ranged from diffuse disseminations to high-grade concentrations in small loci. Under certain assumptions, the tenor of platinum metals in the dunite can be roughly approximated. Utilizing two totally different methods of computation, the mean tenor has been estimated to lie between 0.19 and 0.27 grain of platinum metals per cubic yard of dunite, or 0.014 to 0.023 gram per stere. No large low-grade deposits of commercial value are likely to be found, but it is possible that some small high-grade concentrations occur.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/pp938","usgsCitation":"Mertie, J.B., 1976, Platinum deposits of the Goodnews Bay district, Alaska: U.S. Geological Survey Professional Paper 938, iv, 42 p., https://doi.org/10.3133/pp938.","productDescription":"iv, 42 p.","costCenters":[],"links":[{"id":486535,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_5112.htm","linkFileType":{"id":5,"text":"html"}},{"id":418479,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/pp/0938/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":140358,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/pp/0938/report-thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Goodnews Bay","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -162.94921875,\n 59.84481485969105\n ],\n [\n -161.8505859375,\n 59.84481485969105\n ],\n [\n -161.8505859375,\n 60.413852350464914\n ],\n [\n -162.94921875,\n 60.413852350464914\n ],\n [\n -162.94921875,\n 59.84481485969105\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad9e4b07f02db684f72","contributors":{"authors":[{"text":"Mertie, John Beaver Jr.","contributorId":91093,"corporation":false,"usgs":true,"family":"Mertie","given":"John","suffix":"Jr.","email":"","middleInitial":"Beaver","affiliations":[],"preferred":false,"id":152192,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":10443,"text":"ofr76685 - 1976 - Water resources of the Satus Creek Basin, Yakima Indian Reservation, Washington","interactions":[],"lastModifiedDate":"2019-05-10T13:50:01","indexId":"ofr76685","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1976","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":"76-685","title":"Water resources of the Satus Creek Basin, Yakima Indian Reservation, Washington","docAbstract":"The Satus Creek basin lies on the east flank of the Cascade Range in south-central Washington. The basin is entirely within the Yakima Indian Reservation and is bordered and drained on the east by the Yakima River.
Average annual precipitation ranges from about 35 inches in the western upland to less than 10 inches in the eastern lowland. This amounts to a yearly total of about 562,000 acre-feet, most of which falls in the upland. Much of the precipitation falls as snow, and the streamflow from the upland reflects this fact, having a high sustained runoff during the snowmelt months of April, May, and June.
In 1973 about 176,000 acre-feet of water was carried by canals for irrigation of about 19,000 acres in the lowland; of this quantity, about 173,000 acre-feet was imported from the adjoining Toppenish Creek basin. This high application rate of about 9.25 acre-feet of water per acre is largely responsible for severe waterlogging problems in many parts of the lowland. Also contributing to the problem are the fine-grained sedimentary deposits that generally overlie the alluvial sand and gravel aquifers in the lowland and retard downward percolation of applied water into those units. In other areas the upward discharge from aquifers in the underlying Yakima Basalt of the Columbia River Basalt Group contributes to waterlogging. Relieving artesiar heads by pumping, combined with reduced application and improved drainage, could alleviate the waterlogging, and free water for use in the irrigation of presently nonirrigated parts of the basin.
Young volcanic rocks (basalt) in the southwestern, upland part of the basin appear to contain significant ground-water reservoirs. These rocks receive nearly 70,000 acre-feet a year in recharge from precipitation and, although much of this water is what sustains the high base flows of the streams draining the rocks, the remaining water offers potential for development as a high-altitude source for irrigation water.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr76685","collaboration":"Prepared in cooperation with the Yakima Tribal Council","usgsCitation":"Mundorff, M., Nish, M., and Cline, D., 1976, Water resources of the Satus Creek Basin, Yakima Indian Reservation, Washington: U.S. Geological Survey Open-File Report 76-685, Report: vii, 102 p.; 1 Plate: 25.82 x 22.26 inches, https://doi.org/10.3133/ofr76685.","productDescription":"Report: vii, 102 p.; 1 Plate: 25.82 x 22.26 inches","costCenters":[],"links":[{"id":143119,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1976/0685/report-thumb.jpg"},{"id":363676,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1976/0685/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":363675,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1976/0685/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Washington","otherGeospatial":"Satus River Creek Basin, Yakima Indian Reservation","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -120.29166667,\n 47.16666667\n ],\n [\n -120,\n 47.16666667\n ],\n [\n -120,\n 47.33333333\n ],\n [\n -120.29166667,\n 47.33333333\n ],\n [\n -120.29166667,\n 47.16666667\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49f4e4b07f02db5f005e","contributors":{"authors":[{"text":"Mundorff, M.J.","contributorId":48158,"corporation":false,"usgs":true,"family":"Mundorff","given":"M.J.","email":"","affiliations":[],"preferred":false,"id":161411,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Nish, Mac","contributorId":56792,"corporation":false,"usgs":true,"family":"Nish","given":"Mac","email":"","affiliations":[],"preferred":false,"id":161410,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cline, D.R.","contributorId":45655,"corporation":false,"usgs":true,"family":"Cline","given":"D.R.","affiliations":[],"preferred":false,"id":161412,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":28742,"text":"wri7645 - 1976 - High-resolution seismic reflection profiling for mapping shallow aquifers in Lee County, Florida","interactions":[],"lastModifiedDate":"2019-07-16T11:45:15","indexId":"wri7645","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1976","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":"76-45","title":"High-resolution seismic reflection profiling for mapping shallow aquifers in Lee County, Florida","docAbstract":"High-resolution continuous seismic reflection profiling equipment was utilized to define the configuration of sedimentary layers underlying part of Lee County, Florida. About 45 miles (72 kilometers) of profile were made on the Caloosahatchee River Estuary and San Carlos Bay. Two different acoustic energy sources, a high resolution boomer and a 45-electrode high resolution sparker, both having a power input of 300 joules, were used to obtain both adequate penetration and good resolution. The seismic profiles show that much of the strata of middle Miocene to Holocene age apparently are extensively folded but not faulted. Initial interpretations indicate that: (1) the top of the Hawthorn Formation (which contains the upper Hawthorn aquifer) has much relief due chiefly to apparent folding; (2) the limestone, sandstone, and unconsolidated sand and phosphorite, which together compose the sandstone aquifer, appear to be discontinuous; (3) the green clay unit of the Tamiami Formation contains large scale angular beds dipping eastward; and (4) numerous deeply cut alluvium-filled paleochannels underlie the Caloosahatchee River. (Woodard-USGS)","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/wri7645","usgsCitation":"Missimer, T., and Gardner, R.A., 1976, High-resolution seismic reflection profiling for mapping shallow aquifers in Lee County, Florida: U.S. Geological Survey Water-Resources Investigations Report 76-45, iv, 30 p. , https://doi.org/10.3133/wri7645.","productDescription":"iv, 30 p. ","costCenters":[],"links":[{"id":159403,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1976/0045/report-thumb.jpg"},{"id":365592,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1976/0045/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Florida","city":"Lee County","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -82.27111816406249,\n 26.331576128197028\n ],\n [\n -81.39770507812499,\n 26.331576128197028\n ],\n [\n -81.39770507812499,\n 26.751742053399486\n ],\n [\n -82.27111816406249,\n 26.751742053399486\n ],\n [\n -82.27111816406249,\n 26.331576128197028\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae1e4b07f02db688815","contributors":{"authors":[{"text":"Missimer, T.M.","contributorId":41839,"corporation":false,"usgs":true,"family":"Missimer","given":"T.M.","email":"","affiliations":[],"preferred":false,"id":200322,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gardner, Richard Alfred","contributorId":89134,"corporation":false,"usgs":true,"family":"Gardner","given":"Richard","email":"","middleInitial":"Alfred","affiliations":[],"preferred":false,"id":200323,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":38660,"text":"pp909 - 1976 - Boundaries of the United States and the several States","interactions":[],"lastModifiedDate":"2018-07-31T10:56:53","indexId":"pp909","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1976","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":"909","title":"Boundaries of the United States and the several States","docAbstract":"The original territory of the United States, as defined by the treaties of November 30, 1782, and September 3, 1783, with Great Britain, was bounded on the north by Canada, on the south by the Spanish Colonies of East and West Florida, on the east by the Atlantic Ocean, and on the west by the Mississippi River. It included the Thirteen Original Colonies and the areas claimed by them.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/pp909","usgsCitation":"Van Zandt, F., 1976, Boundaries of the United States and the several States: U.S. Geological Survey Professional Paper 909, ix, 191 p., https://doi.org/10.3133/pp909.","productDescription":"ix, 191 p.","costCenters":[],"links":[{"id":93854,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/pp/0909/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":165643,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/pp/0909/report-thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a0ce4b07f02db5fce11","contributors":{"authors":[{"text":"Van Zandt, F. K.","contributorId":96743,"corporation":false,"usgs":true,"family":"Van Zandt","given":"F. K.","affiliations":[],"preferred":false,"id":220237,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":11776,"text":"ofr76537 - 1976 - Geology of the Deep Creek area, Washington, and its regional significance","interactions":[],"lastModifiedDate":"2024-11-26T21:06:51.931994","indexId":"ofr76537","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1976","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":"76-537","title":"Geology of the Deep Creek area, Washington, and its regional significance","docAbstract":"This report, although primarily concerned with the stratigraphy and structure of a lead-zinc mining district in northern Stevens County, Washington, discusses and integrates the geology of the region about the Deep Creek area. Although the study centers in an area of about 200 square miles immediately south of the International Boundary, the regional background comes from: (1)the previously undescribed Northport quadrangle to the west, (2) published reports and reconnaissance of the Metaline quadrangle to the east, and (3) from published reports and maps of a 16 mile wide area that lies to the north adjacent to these three quadrangles in British Columbia. The report is divided into three parts: (1) descriptions of rocks and structures of the Deep Creek area, (2) descriptions of the regional setting of the Deep Creek area, and (3) an analysis and interpretation of the depositional and tectonic events that produced the geologic features exposed today. \r\n\r\nIn the Deep Creek area surficial deposits of sand and gravel of glacial origin cover much of the consolidated rocks, which range in age from greenschist of the late Precambrlan to albite granite of the Eocene. Three broad divisions of depositional history are represented: (1) Precambrian, (2) lower Paleozoic and (3) upper Paleozoic; the record of the Mesozoic and Eocene is fragmentary. The lower Paleozoic division is the only fossil-controlled sequence; the age of the other two divisions were established by less direct methods. Both Precambrian and upper Paleozoic sequences are dominated by fine-grained detrital sediments, the Precambrian tending towards the alumina-rich and the upper Paleozoic tending towards the black shale facies with high silica. Neither sequence has more than trivial amounts of coarse clastics. Both include limestones, but in minor abundance. \r\n\r\nThe lower Paleozoic sequence, on the other hand, represents a progressive change in deposition. The sequence began during the very late Precambrian with the deposition of clean quartz sand. This was followed by the accumulation of a comparatively thin limestone unit succeeded by a thick shale. The shale grades into a thick carbonate unit which in turn is overlain by black graptolitic slates (Ordovician). This general order of deposition holds for the Cambro-Ordovician throughout the area.\r\n\r\nPrecambrian rocks indigenous to the Deep Creek area, have undergone at least six tectonic events of greatly different intensities. The first three of these events are epeirogentic, the fourth involves intense folding, the fifth, crossfolding, and the sixth, block faulting without folding. These events are dated with varying degrees of precision. The two epeirogentic events of the Precambrian, one gentle folding at the beginning of Windermere time and the other high angle faulting and volcanism in mid-Windermere time, did little to deform or metamorphose the rocks. The third event consists of uplift of northern Idaho and adjacent Montana and westward decollement thrusting of essentially unfolded lower Paleozoic rocks. The decollement faulting is inferred to explain anomalous rock distribution and cannot be accurately dated. It occurred sometime after the Devonian and before the Jurassic. A late Paleozoic age is favored.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr76537","usgsCitation":"Yates, R.G., 1976, Geology of the Deep Creek area, Washington, and its regional significance: U.S. Geological Survey Open-File Report 76-537, Report: xi, 435 p.; 11 Plates: 36.21 x 45.51 inches or smaller, https://doi.org/10.3133/ofr76537.","productDescription":"Report: xi, 435 p.; 11 Plates: 36.21 x 45.51 inches or smaller","costCenters":[],"links":[{"id":39663,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1976/0537/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":39662,"rank":13,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1976/0537/plate-11.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":39661,"rank":12,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1976/0537/plate-10.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":39660,"rank":11,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1976/0537/plate-09.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":39659,"rank":10,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1976/0537/plate-08.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":39658,"rank":9,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1976/0537/plate-07.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":39657,"rank":8,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1976/0537/plate-06.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":39656,"rank":7,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1976/0537/plate-05.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":39655,"rank":6,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1976/0537/plate-04.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":39654,"rank":5,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1976/0537/plate-03.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":39653,"rank":4,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1976/0537/plate-02.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":39652,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1976/0537/plate-01.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":144980,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1976/0537/report-thumb.jpg"},{"id":108657,"rank":15,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_15370.htm","text":"Deep Creek Area, Stevens and Pend Oreille Counties, Washington","linkFileType":{"id":5,"text":"html"},"description":"15370"},{"id":108656,"rank":14,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_15368.htm","text":"northeastern Washington and adjacent Idaho and British Columbia","linkFileType":{"id":5,"text":"html"},"description":"15368"}],"country":"Canada, United States","state":"British Columbia, Idaho, Washington","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -118,\n 49.25\n ],\n [\n -118,\n 48.5\n ],\n [\n -117,\n 48.5\n ],\n [\n -117,\n 49.25\n ],\n [\n -118,\n 49.25\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4acfe4b07f02db680561","contributors":{"authors":[{"text":"Yates, Robert Giertz","contributorId":69524,"corporation":false,"usgs":true,"family":"Yates","given":"Robert","email":"","middleInitial":"Giertz","affiliations":[],"preferred":false,"id":163715,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":9216,"text":"ofr76582 - 1976 - Generalized descriptions of uranium-bearing veins, pegmatites, and disseminations in non-sedimentary rocks, eastern United States","interactions":[],"lastModifiedDate":"2012-02-02T00:06:17","indexId":"ofr76582","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1976","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":"76-582","title":"Generalized descriptions of uranium-bearing veins, pegmatites, and disseminations in non-sedimentary rocks, eastern United States","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/ofr76582","usgsCitation":"Grauch, R.I., and Zarinski, K., 1976, Generalized descriptions of uranium-bearing veins, pegmatites, and disseminations in non-sedimentary rocks, eastern United States: U.S. Geological Survey Open-File Report 76-582, [2], 114 leaves :maps ;28 cm., https://doi.org/10.3133/ofr76582.","productDescription":"[2], 114 leaves :maps ;28 cm.","costCenters":[],"links":[{"id":142884,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1976/0582/report-thumb.jpg"},{"id":36827,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1976/0582/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b26e4b07f02db6afc6e","contributors":{"authors":[{"text":"Grauch, Richard I. 0000-0002-1763-0813 rgrauch@usgs.gov","orcid":"https://orcid.org/0000-0002-1763-0813","contributorId":1193,"corporation":false,"usgs":true,"family":"Grauch","given":"Richard","email":"rgrauch@usgs.gov","middleInitial":"I.","affiliations":[],"preferred":true,"id":159301,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Zarinski, Katrin","contributorId":101263,"corporation":false,"usgs":true,"family":"Zarinski","given":"Katrin","email":"","affiliations":[],"preferred":false,"id":159302,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":11371,"text":"ofr76580 - 1976 - Water resources of Dinosaur National Monument, Colorado and Utah","interactions":[],"lastModifiedDate":"2017-09-03T13:33:22","indexId":"ofr76580","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1976","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":"76-580","title":"Water resources of Dinosaur National Monument, Colorado and Utah","docAbstract":"Dinosaur National Monument, partly in the Rocky Mountain System and partly in the Colorado Plateaus physiographic province, covers an area of 322 square miles (834 square kilometres) in northwestern Colorado and northeastern Utah. The climate is generally cool and pleasant in May, early June, September, and October; winters are cold. Normal annual precipitation ranges from less than 8 to more than 16 inches (203 to 406 millimetres).
Geologic formations in the monument range in age from upper Precambrian to Holocene, but not all ages are represented. The monument is on the south limb of the east-trending regional fold representing the Uinta Mountains. Faults and subsidary folds on the south slope of the Uinta Mountains complicate the geology and hydrology of the area.
None of the surface streams in the monument are diverted for public supply, but the Green and Yampa Rivers are a recreational resource for boaters. The flow of the Green River is regulated by Flaming Gorge Reservoir; however, flood potentials are estimated for the Yampa River and three smaller streams. Facilities in the monument are not endangered by probable mean annual floods, but may sustain some damage to facilities by the 25- or 50-year floods.
Major aquifers in the monument are sandstone and limestone formations, but these formations are drained in the higher areas. Alluvium along the major stream channels yields small amounts of water to wells, but some of the water is not of suitable chemical quality for public supply. All public water supplies in 1971 were obtained from wells, and the use of water during 1970 was estimated to be 15 million gallons (46 acre-feet or 0.057 cubic hectometres). Most of the ground water obtained from sandstone and limestone is of suitable chemical quality for public supply.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Salt Lake City, UT","doi":"10.3133/ofr76580","usgsCitation":"Sumsion, C.T., 1976, Water resources of Dinosaur National Monument, Colorado and Utah: U.S. Geological Survey Open-File Report 76-580, Report: 68 p.; 3 Plates: 48.25 in. x. 27.49 in. or smaller, https://doi.org/10.3133/ofr76580.","productDescription":"Report: 68 p.; 3 Plates: 48.25 in. x. 27.49 in. or smaller","costCenters":[{"id":610,"text":"Utah Water Science Center","active":true,"usgs":true}],"links":[{"id":143158,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1976/0580/report-thumb.jpg"},{"id":39195,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1976/0580/plate-1.pdf","text":"Plate 1","linkFileType":{"id":1,"text":"pdf"},"linkHelpText":"Topographic map of the Dinosaur National Monument, Colorado-Utah"},{"id":39196,"rank":401,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1976/0580/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":39197,"rank":402,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1976/0580/plate-3.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":39198,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1976/0580/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Colorado, Utah","otherGeospatial":"Dinosaur National Monument","publicComments":"Prepared for the U.S. National Park Service","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a13e4b07f02db601a2c","contributors":{"authors":[{"text":"Sumsion, C. T.","contributorId":23129,"corporation":false,"usgs":true,"family":"Sumsion","given":"C.","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":163018,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":26987,"text":"wri7653 - 1976 - Waterlogging in an alluvial aquifer near Lake Minnequa, Pueblo, Colorado","interactions":[],"lastModifiedDate":"2022-09-06T21:50:04.156263","indexId":"wri7653","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1976","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":"76-53","title":"Waterlogging in an alluvial aquifer near Lake Minnequa, Pueblo, Colorado","docAbstract":"The Lake Minnequa area, located immediately south of the Arkansas River near Pueblo, Colo., is mantled with as much as 46 feet (14 meters) of alluvium covering bedrock of Pierre Shale and Niobrara Formation. Surface water enters the area by the Minnequa Canal and the St. Charles Flood Ditch. The water is stored in Lake Minnequa and other reservoirs. Seepage from St. Charles Reservoirs No. 2 and No. 3 is the major source of water to the alluvial aquifer. The depth of the water table ranges from 0 to 40 feet (0 to 12.2 meters). An 0.5-square-mile (1.3-square-kilometer) area immediately south of Lake Minnequa has a water table less than 6 feet (1.8 meters) below land surface. Lake Minnequa is the principal cause of the shallow water table and resulting waterlogged soil. The bedrock hill east of Lake Minnequa and ground-water flow also contribute to the problem. To eliminate the waterlogging problem, the water table would have to be at least 6 feet (1.8 meters) below land surface. Possible alternatives for eliminating the problem include lowering the water level in Lake Minnequa, placing a network of dewatering wells, or constructing a drainage system in the waterlogged area. (Woodard-USGS)","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/wri7653","usgsCitation":"Emmons, P.J., 1976, Waterlogging in an alluvial aquifer near Lake Minnequa, Pueblo, Colorado: U.S. Geological Survey Water-Resources Investigations Report 76-53, iv, 34 p., https://doi.org/10.3133/wri7653.","productDescription":"iv, 34 p.","costCenters":[],"links":[{"id":55874,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1976/0053/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":123304,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1976/0053/report-thumb.jpg"},{"id":406280,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_35069.htm","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Colorado","city":"Pueblo","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -104.72442626953124,\n 38.13023573104302\n ],\n [\n -104.59945678710936,\n 38.13023573104302\n ],\n [\n -104.59945678710936,\n 38.28670289852796\n ],\n [\n -104.72442626953124,\n 38.28670289852796\n ],\n [\n -104.72442626953124,\n 38.13023573104302\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e47d9e4b07f02db4b5cc0","contributors":{"authors":[{"text":"Emmons, Patrick J.","contributorId":48958,"corporation":false,"usgs":true,"family":"Emmons","given":"Patrick","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":197363,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":59097,"text":"mf797 - 1976 - Isopach map and cross section of the Mahogany zone of the Green River Formation derived principally from geophysical well logs, eastern Uinta Basin, Utah and Colorado","interactions":[],"lastModifiedDate":"2025-05-15T19:49:09.35955","indexId":"mf797","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1976","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":"797","title":"Isopach map and cross section of the Mahogany zone of the Green River Formation derived principally from geophysical well logs, eastern Uinta Basin, Utah and Colorado","docAbstract":"No abstract available.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/mf797","usgsCitation":"Cashion, W.B., and Dixon, G., 1976, Isopach map and cross section of the Mahogany zone of the Green River Formation derived principally from geophysical well logs, eastern Uinta Basin, Utah and Colorado: U.S. Geological Survey Miscellaneous Field Studies Map 797, 1 Plate: 31.00 x 26.00 inches, https://doi.org/10.3133/mf797.","productDescription":"1 Plate: 31.00 x 26.00 inches","costCenters":[],"links":[{"id":183994,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":88605,"rank":2,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/1976/0797/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":486017,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_3968.htm","linkFileType":{"id":5,"text":"html"}}],"scale":"253000","country":"United States","state":"Colorado, Utah","otherGeospatial":"eastern Uinta Basin","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -109.873,\n 40.198\n ],\n [\n -109.873,\n 39.7786\n ],\n [\n -109,\n 39.7786\n ],\n [\n -109,\n 40.198\n ],\n [\n -109.873,\n 40.198\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4aa7e4b07f02db66714e","contributors":{"authors":[{"text":"Cashion, W. B.","contributorId":75525,"corporation":false,"usgs":true,"family":"Cashion","given":"W.","middleInitial":"B.","affiliations":[],"preferred":false,"id":261413,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dixon, G. H.","contributorId":67494,"corporation":false,"usgs":true,"family":"Dixon","given":"G. H.","affiliations":[],"preferred":false,"id":261412,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":7895,"text":"ofr76786 - 1976 - The Lisburne Group: A potential major hydrocarbon objective of the Arctic Slope, Alaska","interactions":[{"subject":{"id":7895,"text":"ofr76786 - 1976 - The Lisburne Group: A potential major hydrocarbon objective of the Arctic Slope, Alaska","indexId":"ofr76786","publicationYear":"1976","noYear":false,"title":"The Lisburne Group: A potential major hydrocarbon objective of the Arctic Slope, Alaska"},"predicate":"SUPERSEDED_BY","object":{"id":70046178,"text":"70046178 - 1977 - Lisburne Group (Mississippian and Pennsylvanian), potential major hydrocarbon objective of Arctic Slope, Alaska","indexId":"70046178","publicationYear":"1977","noYear":false,"title":"Lisburne Group (Mississippian and Pennsylvanian), potential major hydrocarbon objective of Arctic Slope, Alaska"},"id":1}],"supersededBy":{"id":70046178,"text":"70046178 - 1977 - Lisburne Group (Mississippian and Pennsylvanian), potential major hydrocarbon objective of Arctic Slope, Alaska","indexId":"70046178","publicationYear":"1977","noYear":false,"title":"Lisburne Group (Mississippian and Pennsylvanian), potential major hydrocarbon objective of Arctic Slope, Alaska"},"lastModifiedDate":"2025-11-14T14:20:09.850887","indexId":"ofr76786","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1976","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":"76-786","title":"The Lisburne Group: A potential major hydrocarbon objective of the Arctic Slope, Alaska","docAbstract":"The Lisburne Group, a thick carbonate rock unit of Mississippian and Pennsylvanian age, is one of the most widespread potential reservoir rock units in northern Alaska. A comprehensive review of the Lisburne in the subsurface of the eastern Arctic Slope indicates attractive reservoir characteristics in a favorable source and migration setting where numerous trapping mechanisms appear to be available. Evaluation of this group as a potential exploration objective is particularly timely in view of impending offshore sales in the Beaufort Sea and current exploration programs underway in the Prudhoe Bay area and the Naval Petroleum Reserve.
Dolomite and sandstone have been identified as reservoir rocks. Oolitic grainstone is a common rock type, but all observations to date indicate little reservoir potential owing to complete void filling by calcite cement. The most important reservoir rock as judged by thickness, areal extent, and predictability is microsucrosic (10-30 μ) dolomite of intertidal to supratidal origin. It is present throughout the Lisburne and is most abundant near the middle of the sequence. Northward it decreases in thickness from 1,000 feet (300 m) to less than 100 feet (30 m). Porosity of the dolomite as determined in selected wells averages between 10 and 15 percent and attains a maximum of slightly more than 25 percent. Net thickness of reservoir rocks (i.e., rocks with greater than 5 percent porosity) varies in these wells from 140 feet (40 m) to 390 feet (120 m). Oil shows are common, and drill-stem tests have yielded as much as 1,600 bbls/day oil and 22 MMcf/day gas in the Lisburne pool of the Prudhoe Bay Field and as much as 2,057 bbls/day saltwater outside the field area. The occurrence of dolomite over such a large area makes its presence in the offshore Beaufort Sea and adjacent Naval Petroleum Reserve No. 4 fairly certain. The occurrence of sandstone as thick as 140 feet (40 m) in the middle and upper part of the Lisburne in two coastal wells suggests that larger areas of sandstone may be found to the north in offshore areas. Shows of oil and gas and a saltwater flow of 1,470 bbls/day have been recorded from this sandstone facies.
Shales of Permian and Cretaceous age unconformably overlie the Lisburne, providing adequate sealing beds above potential reservoirs. Impermeable limestone (completely cemented grainstone) and thin beds of shale may serve as seals within the Lisburne, but the possibility of fractures in these units may negate their sealing capability.
The most favorable source rock for Lisburne hydrocarbons appears to be Cretaceous shale that unconformably overlies the Lisburne east of Prudhoe Bay. This shale is reported by Morgridge and Smith (1972) to be a rich source rock and is the most likely source for the entire Prudhoe Bay Field. A source within the Lisburne or within the underlying Kayak Shale is postulated to explain oil shows in the southernmost Lisburne wells. This postulated source may be in a more basinal facies of the Lisburne and may be similar to dark shale in the upper Lisburne found in thrust slides in the Brooks-Range. Coal in the underlying Endicott Group is a possible source for dry gas. It is inferred that at the present time much of this coal is in a gas—generating regime downdip from the Prudhoe Bay Field area.
Stratigraphic traps involving the Lisburne Group may exist as a result of widespread Permian and Cretaceous unconformities. Structural traps related to normal faulting may occur along the trend of the Barrow Arch, and faulted anticlines are numerous in the foothills of the Brooks Range. Combination traps are possible along the trend of the Barrow Arch at places where both stratigraphic and structural trap might exist.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr76786","usgsCitation":"Bird, K.J., and Jordan, C.F., 1976, The Lisburne Group: A potential major hydrocarbon objective of the Arctic Slope, Alaska: U.S. Geological Survey Open-File Report 76-786, 45 p., https://doi.org/10.3133/ofr76786.","productDescription":"45 p.","costCenters":[{"id":255,"text":"Energy Resources Program","active":true,"usgs":true}],"links":[{"id":140044,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1976/0786/report-thumb.jpg"},{"id":427884,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1976/0786/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Alaska","otherGeospatial":"Arctic Slope","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -167.79230672684753,\n 70.95128032471553\n ],\n [\n -167.79230672684753,\n 68.64028489549236\n ],\n [\n -143.12168301430032,\n 68.64028489549236\n ],\n [\n -143.12168301430032,\n 70.95128032471553\n ],\n [\n -167.79230672684753,\n 70.95128032471553\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac8e4b07f02db67bc1b","contributors":{"authors":[{"text":"Bird, Kenneth J. kbird@usgs.gov","contributorId":1015,"corporation":false,"usgs":true,"family":"Bird","given":"Kenneth","email":"kbird@usgs.gov","middleInitial":"J.","affiliations":[{"id":255,"text":"Energy Resources Program","active":true,"usgs":true}],"preferred":true,"id":156799,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jordan, Clifton F.","contributorId":95203,"corporation":false,"usgs":true,"family":"Jordan","given":"Clifton","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":156800,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70207630,"text":"70207630 - 1976 - Trace-element variations at Summer Coon volcano, San Juan Mountains, Colorado, and the origin of continental-interior andesite","interactions":[],"lastModifiedDate":"2020-06-04T14:48:43.64956","indexId":"70207630","displayToPublicDate":"1976-12-31T11:03:30","publicationYear":"1976","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1723,"text":"GSA Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Trace-element variations at Summer Coon volcano, San Juan Mountains, Colorado, and the origin of continental-interior andesite","docAbstract":"The Oligocene Summer Coon center, an eroded continental-interior volcano of the eastern San Juan Mountains, Colorado, was the source of magmas ranging in composition from basaltic andesite to rhyolite. Previous Pb and Sr isotope studies indicate derivation of the magmas from an isotopically homogeneous source. This study presents new data for rare-earth elements (REE), U, Th, Ba, Sr, Rb, and Ni from 10 samples of the Summer Coon sequence. Alkali elements are high in all rocks; as SiO2 increases, Ba increases from 900 to 2,000 ppm, Rb increases from 35 to 90 ppm, Sr decreases from 900 to 350 ppm, K/Rb decreases slightly, Ba/Sr increases, U increases from 0.5 to 2.5 ppm, and Th increases from 2 to 7 ppm. Chondrite-normalized REE patterns are strongly fractionated in comparison with oceanic-arc andesite-dacite sequences. La is 80 to 120 times chondritic abundance, but Yb and Lu are less than 10 times chondritic abundance. Small negative Eu anomalies characterize the rhyolites. Nickel in the andesites is 40 to 70 ppm.
The origin of the andesite is interpreted in terms of nonmodal partial melting of a trace-element—enriched garnet-bearing source, possibly subducted crust that has converted to eclogite. Rhyodacite and rhyolite are interpreted as low-pressure crystal-fractionation products of silicic andesite, in which crystallizing phases are hornblende rich in REE and plagioclase.
","language":"English","publisher":"GSA","doi":"10.1130/0016-7606(1976)87<1477:TVASCV>2.0.CO;2","usgsCitation":"Zielinski, R.A., and Lipman, P.W., 1976, Trace-element variations at Summer Coon volcano, San Juan Mountains, Colorado, and the origin of continental-interior andesite: GSA Bulletin, v. 87, no. 10, p. 1477-1485, https://doi.org/10.1130/0016-7606(1976)87<1477:TVASCV>2.0.CO;2.","productDescription":"9 p.","startPage":"1477","endPage":"1485","costCenters":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true},{"id":5079,"text":"Pacific Regional Director's Office","active":true,"usgs":true}],"links":[{"id":370899,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Colorado","otherGeospatial":"Summer Coon volcanic center","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -106.4794921875,\n 37.37015718405753\n ],\n [\n -105.6005859375,\n 37.37015718405753\n ],\n [\n -105.6005859375,\n 38.496593518947584\n ],\n [\n -106.4794921875,\n 38.496593518947584\n ],\n [\n -106.4794921875,\n 37.37015718405753\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"87","issue":"10","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Zielinski, Robert A. 0000-0002-4047-5129 rzielinski@usgs.gov","orcid":"https://orcid.org/0000-0002-4047-5129","contributorId":1593,"corporation":false,"usgs":true,"family":"Zielinski","given":"Robert","email":"rzielinski@usgs.gov","middleInitial":"A.","affiliations":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":778681,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lipman, Peter W. 0000-0001-9175-6118 plipman@usgs.gov","orcid":"https://orcid.org/0000-0001-9175-6118","contributorId":3486,"corporation":false,"usgs":true,"family":"Lipman","given":"Peter","email":"plipman@usgs.gov","middleInitial":"W.","affiliations":[{"id":5079,"text":"Pacific Regional Director's Office","active":true,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":778682,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70233430,"text":"70233430 - 1976 - Metagraywacke in the Salinian Block, central Coast Ranges, California: And a possible correlative across the San Andreas Fault","interactions":[],"lastModifiedDate":"2022-07-20T16:20:58.658521","indexId":"70233430","displayToPublicDate":"1976-11-01T11:14:47","publicationYear":"1976","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2446,"text":"Journal of Research of the U.S. Geological Survey","active":true,"publicationSubtype":{"id":10}},"title":"Metagraywacke in the Salinian Block, central Coast Ranges, California: And a possible correlative across the San Andreas Fault","docAbstract":"The schist of Sierra de Salinas is a monotonously homogeneous biotite quartzofeldspathic schist with minor amounts of quartzite, amphibolite, and marble that forms a northwest-trending outcrop belt that strikes across parts of the Santa Lucia and Gabilan Ranges and is traceable further south in the subsurface to where it is presumably cut off by the San Andreas fault zone. Chemical composition of the schist is similar to that of \"average\" graywackes. This large and monotonous terrane of metagraywacke is anomalous in the Salinian block, where a great variety of metamorphic rocks is the general rule. The age of the schist is not known, but it has been intruded by granitic rocks of presumably mid-Cretaceous age. Although it contains somewhat greater amounts of admixed quartzite, amphibolite, and marble, the schist of Portal-Bitter Ridge (Pelona Schist?), on the east side of the San Andreas fault and west of Palmdale, is nevertheless modally and chemically similar to the schist (metagraywacke) of Sierra de Salinas, and I suggest that the two terranes are correlative and once were contiguous.
","language":"English","publisher":"U.S. Geological Survey","usgsCitation":"Ross, D.C., 1976, Metagraywacke in the Salinian Block, central Coast Ranges, California: And a possible correlative across the San Andreas Fault: Journal of Research of the U.S. Geological Survey, v. 4, no. 6, p. 683-696.","productDescription":"14 p.","startPage":"683","endPage":"696","costCenters":[],"links":[{"id":404128,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":404127,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1976/vol4issue6/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"California","otherGeospatial":"central Coast Ranges","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -122,\n 36.45\n ],\n [\n -120.75,\n 36.45\n ],\n [\n -120.75,\n 36\n ],\n [\n -122,\n 36\n ],\n [\n -122,\n 36.45\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"4","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Ross, Donald C.","contributorId":146987,"corporation":false,"usgs":true,"family":"Ross","given":"Donald","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":847087,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70156633,"text":"70156633 - 1976 - Volcanic rocks of the eastern and northern parts of the San Francisco volcanic field, Arizona","interactions":[],"lastModifiedDate":"2015-08-25T12:54:12","indexId":"70156633","displayToPublicDate":"1976-10-26T17:15:00","publicationYear":"1976","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2446,"text":"Journal of Research of the U.S. Geological Survey","active":true,"publicationSubtype":{"id":10}},"title":"Volcanic rocks of the eastern and northern parts of the San Francisco volcanic field, Arizona","docAbstract":"The eastern and northern parts of the San Francisco volcanic field, between San Francisco Mountain and the Little Colorado River, contain about 175 cinder cones, many with one or more associated lava flows, and one center of silicic volcanism, O'Leary Peak. Basaltic flows and cones are divided into five groups, primarily on the bases of stratigraphic and physiographic relations, degree of weathering and erosion, K-Ar and tree-ring age determinations, and, in part, chemical and petrographic data:
\n\n
The flows and cones are predominantly alkali olivine basalt, commonly nepheline normative, and characterized by a single Ca-rich pyroxene phase and the absence of the olivine-pyroxene reaction relation. By depletion in olivine and pyroxene these basalts grade into alkali-rich high-alumina basalts; the most silicic of which contain both Ca-rich and Ca-poor pyroxene but show no olivine reaction. By relative enrichment in K2O and SiO2, alkali olivine basalts grade into intersertal basaltic andesites that contain, in addition to olivine, two pyroxene phases and minor primary cristobalite. Volcanic rocks of O'Leary Peak consist largely of rhyodacite domes, flows, and minor pyroclastic deposits. An andesite flow underlies the rhyodacites and andesitic cinders mantle the rhyodacite porphyry dome that forms O'Leary Peak. This dome, 0.23±0.04 m.y. old, is both underlain and overlain by Tappan-age basaltic rocks. Variation diagrams that include data from the dominantly andesitic to rhyolitic San Francisco Mountain as well as from the mapped area show the differentiated and consanguineous character of the lavas, which are chemically intermediate between typical calc-alkalic and alkalic suites. Sr87/Sr86 ratios of 0.7026 to 0.7050 suggest a mantle origin with little contamination by upper crustal material. Ultramafic and mafic xenoliths with cumulus texture may represent crustal intrusions related to the volcanic rocks. Eruption of intermediate to silicic magmas was generally localized in a few centers such as San Francisco Mountain and O'Leary Peak. In the same general time interval, basaltic eruptions dominated in the surrounding areas.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","usgsCitation":"Moore, R.B., Wolfe, E.W., and Ulrich, G.E., 1976, Volcanic rocks of the eastern and northern parts of the San Francisco volcanic field, Arizona: Journal of Research of the U.S. Geological Survey, v. 4, no. 5, p. 549-560.","productDescription":"12 p.","startPage":"549","endPage":"560","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":307412,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":307407,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1976/vol4issue5/report.pdf","text":"Report","size":"29.18 MB","linkFileType":{"id":1,"text":"pdf"},"description":"Report"}],"country":"United States","state":"Arizona","otherGeospatial":"San Francisco Mountain, Little Colorado River","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -115,\n 34\n ],\n [\n -115,\n 37\n ],\n [\n -109,\n 37\n ],\n [\n -109,\n 34\n ],\n [\n -115,\n 34\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"4","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"55dd91c0e4b0518e354dd1d6","contributors":{"authors":[{"text":"Moore, Richard B. rmoore@usgs.gov","contributorId":1464,"corporation":false,"usgs":true,"family":"Moore","given":"Richard","email":"rmoore@usgs.gov","middleInitial":"B.","affiliations":[{"id":405,"text":"NH/VT office of New England Water Science Center","active":true,"usgs":true}],"preferred":true,"id":569743,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wolfe, Edward W.","contributorId":79878,"corporation":false,"usgs":true,"family":"Wolfe","given":"Edward","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":569744,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ulrich, George E.","contributorId":23550,"corporation":false,"usgs":true,"family":"Ulrich","given":"George","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":569745,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70156656,"text":"70156656 - 1976 - The aeromagnetic expression of bedrock geology between the Clinton-Newbury and Bloody Bluff fault zones, northeastern Massachusetts","interactions":[],"lastModifiedDate":"2015-08-25T14:38:08","indexId":"70156656","displayToPublicDate":"1976-10-26T17:15:00","publicationYear":"1976","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2446,"text":"Journal of Research of the U.S. Geological Survey","active":true,"publicationSubtype":{"id":10}},"title":"The aeromagnetic expression of bedrock geology between the Clinton-Newbury and Bloody Bluff fault zones, northeastern Massachusetts","docAbstract":"The pattern of mapped bedrock geology in northeastern Massachusetts bears a striking similarity to patterns of aeromagnetic anomalies in the area. The correspondence of the geology with the anomaly pattern and lineaments on aeromagnetic maps is especially well shown northwest of Boston between the Clinton-Newbury and Bloody Bluff fault zones. Here, an aluminous schist unit and an underlying series of metasedimentary and metavolcanic rocks south of the Clinton-Newbury fault zone coincide with a zone of northeast-trending positive anomalies that contrast with the broad magnetic low north of the fault. Nearly concordant granitic bodies intrude the metamorphic series and correspond to broad magnetic lows between the fault zones. Smaller narrower lows correspond to zones of amphibolite-carbonate rock. Commonly faults are indicated by lineaments that separate areas of different magnetic pattern and that offset or terminate other lineaments. The northeast-trending Spencer Brook and Assabet River fault zones and other unnamed faults are emphasized by magnetic lineaments trending slightly east of the strike of the stratigraphy.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","usgsCitation":"Alvord, D., Bell, K., Pease, M.H., and Barosh, P.J., 1976, The aeromagnetic expression of bedrock geology between the Clinton-Newbury and Bloody Bluff fault zones, northeastern Massachusetts: Journal of Research of the U.S. Geological Survey, v. 4, no. 5, p. 601-604.","productDescription":"4 p.","startPage":"601","endPage":"604","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":307441,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1976/vol4issue5/report.pdf","text":"Report","size":"29.18 MB","linkFileType":{"id":1,"text":"pdf"},"description":"Report"},{"id":307442,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Massachusetts","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -71.8,\n 42\n ],\n [\n -71.8,\n 42.7\n ],\n [\n -71.2,\n 42.7\n ],\n [\n -71.2,\n 42\n ],\n [\n -71.8,\n 42\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"4","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"55dd91c0e4b0518e354dd1cd","contributors":{"authors":[{"text":"Alvord, Donald C.","contributorId":147001,"corporation":false,"usgs":true,"family":"Alvord","given":"Donald C.","affiliations":[],"preferred":false,"id":569830,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bell, Kenneth G.","contributorId":42490,"corporation":false,"usgs":true,"family":"Bell","given":"Kenneth G.","affiliations":[],"preferred":false,"id":569831,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Pease, Maurice H. Jr.","contributorId":147002,"corporation":false,"usgs":true,"family":"Pease","given":"Maurice","suffix":"Jr.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":569832,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Barosh, Patrick J.","contributorId":147003,"corporation":false,"usgs":true,"family":"Barosh","given":"Patrick","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":569833,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70010216,"text":"70010216 - 1976 - Bicarbonate content of groundwater in carbonate rock in eastern North America","interactions":[],"lastModifiedDate":"2025-04-10T15:50:17.089441","indexId":"70010216","displayToPublicDate":"1976-09-01T00:00:00","publicationYear":"1976","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2342,"text":"Journal of Hydrology","active":true,"publicationSubtype":{"id":10}},"title":"Bicarbonate content of groundwater in carbonate rock in eastern North America","docAbstract":"In carbonate-rock terrane the most effective solution occurs where soil and vegetative cover facilitate biogenic production and storage of CO2 in the soil until part of it is carried downward in percolating water. Bicarbonate data for groundwater in eastern North America are examined in the light of these conditions, of the CO2 content of soil gas, and of the timing of groundwater recharge relative to seasonal changes in soil temperature. There appears to be no well-marked relation between latitude and bicarbonate content of groundwater in this region. Interplay of all the factors listed above, and of lithology and soil types, is evidently such that under optimum conditions the amount of solution of carbonate rock is roughly comparable, per unit of groundwater recharge, over the region from Ohio to Florida (and, perhaps, to Puerto Rico and Yucatan). Relatively low HCO3 concentrations observed in much of the southern United States are attributed to low production and storage of CO2 in sandy soil that is poor in organic matter. On the other hand, concentrations observed in Ontario, New York and Michigan are markedly higher than is to be expected from interrelations of the factors considered. These high values, apparently anomalous, are attributed in part to solution of granular glacial drift derived largely from carbonate rock.
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America\"}}]}","volume":"31","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f125e4b0c8380cd4aa73","contributors":{"authors":[{"text":"Trainer, F.W.","contributorId":26007,"corporation":false,"usgs":true,"family":"Trainer","given":"F.W.","email":"","affiliations":[],"preferred":false,"id":358328,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Heath, R.C.","contributorId":49408,"corporation":false,"usgs":true,"family":"Heath","given":"R.C.","email":"","affiliations":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"preferred":false,"id":358329,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70121418,"text":"70121418 - 1976 - Evidence of post-Pleistocene faults on New Jersey Atlantic outer continental shelf","interactions":[],"lastModifiedDate":"2023-01-25T16:45:41.599106","indexId":"70121418","displayToPublicDate":"1976-07-01T15:53:42","publicationYear":"1976","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":701,"text":"American Association of Petroleum Geologists Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Evidence of post-Pleistocene faults on New Jersey Atlantic outer continental shelf","docAbstract":"Recently obtained high-resolution seismic profiles (400-4,000-Hz band) show evidence of faults in shallow sedimentary strata near the edge of the Atlantic continental shelf off New Jersey. Apparent normal faults having a throw of about 1.5 m displace sediments to within 7 m of the sea floor. The faults appear to be overlain by undeformed horizontal beds of relatively recent age. Several faults 1 to 2 km apart strike approximately N70°E and dip northwest. The data suggest that the faults are upthrown on the southeast.
Projection of the faults on the high-resolution profiles to a nearby multichannel seismic-reflection profile indicates that these shallow faults might be the near-surface expression of a more fundamental deep-seated fault. Several prominent reflectors in the multichannel records are offset by a high-angle normal fault reaching depths of 4.0 to 5.0 sec (6.0 to 6.5 km). The deep fault on the multichannel line also is upthrown on the southeast. Throws of as much as 90 m are apparent at depth, but offsets of as much as 10 m could be present in the shallower parts of the section that may not be resolved in the multichannel data.
The position and strike of these faults coincide with and parallel the East Coast magnetic anomaly interpreted as the fundamental seaward basement boundary of the Baltimore Canyon trough. Recurring movements along such boundary faults are expected theoretically if the marginal basins are subsiding in response to the plate rotation of North America and seafloor spreading in the Atlantic.
","language":"English","publisher":"American Association of Petroleum Geologists","publisherLocation":"Tulsa, OK","doi":"10.1306/C1EA3636-16C9-11D7-8645000102C1865D","usgsCitation":"Sheridan, R.E., and Knebel, H., 1976, Evidence of post-Pleistocene faults on New Jersey Atlantic outer continental shelf: American Association of Petroleum Geologists Bulletin, v. 60, no. 7, p. 1112-1117, https://doi.org/10.1306/C1EA3636-16C9-11D7-8645000102C1865D.","productDescription":"6 p.","startPage":"1112","endPage":"1117","costCenters":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true},{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":292802,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"New Jersey","otherGeospatial":"Atlantic Outer Continental Shelf","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -72.833333,39.166667 ], [ -72.833333,39.416667 ], [ -72.333333,39.416667 ], [ -72.333333,39.166667 ], [ -72.833333,39.166667 ] ] ] } } ] }","volume":"60","issue":"7","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53f707d8e4b05ec1f2431bcf","contributors":{"authors":[{"text":"Sheridan, R. E.","contributorId":36681,"corporation":false,"usgs":true,"family":"Sheridan","given":"R.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":499057,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Knebel, H.J.","contributorId":79092,"corporation":false,"usgs":true,"family":"Knebel","given":"H.J.","affiliations":[],"preferred":false,"id":499058,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ]}