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,{"id":63835,"text":"gp747 - 1971 - Aeromagnetic map of the South Boston Quadrangle, Halifax County, Virginia, and Person and Granville counties, North Carolina","interactions":[],"lastModifiedDate":"2012-02-10T00:10:55","indexId":"gp747","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1971","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":317,"text":"Geophysical Investigations Map","code":"GP","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"747","title":"Aeromagnetic map of the South Boston Quadrangle, Halifax County, Virginia, and Person and Granville counties, North Carolina","language":"ENGLISH","doi":"10.3133/gp747","usgsCitation":"Water Resources Division, U.S. Geological Survey, 1971, Aeromagnetic map of the South Boston Quadrangle, Halifax County, Virginia, and Person and Granville counties, North Carolina: U.S. Geological Survey Geophysical Investigations Map 747, 1 map., https://doi.org/10.3133/gp747.","productDescription":"1 map.","costCenters":[],"links":[{"id":105376,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_6102.htm","linkFileType":{"id":5,"text":"html"},"description":"6102"},{"id":186918,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"scale":"62500","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -79,36.5 ], [ -79,36.75 ], [ -78.75,36.75 ], [ -78.75,36.5 ], [ -79,36.5 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4aeee4b07f02db6911da","contributors":{"authors":[{"text":"Water Resources Division, U.S. Geological Survey","contributorId":128075,"corporation":true,"usgs":false,"organization":"Water Resources Division, U.S. Geological Survey","id":533304,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":63367,"text":"gq919 - 1971 - Geologic map of the Mount Carmel quadrangle, Columbia, Northumberland, and Schuylkill Counties, Pennsylvania","interactions":[],"lastModifiedDate":"2012-02-10T00:10:46","indexId":"gq919","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1971","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":316,"text":"Geologic Quadrangle","code":"GQ","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"919","title":"Geologic map of the Mount Carmel quadrangle, Columbia, Northumberland, and Schuylkill Counties, Pennsylvania","language":"ENGLISH","doi":"10.3133/gq919","usgsCitation":"Arndt, H.H., 1971, Geologic map of the Mount Carmel quadrangle, Columbia, Northumberland, and Schuylkill Counties, Pennsylvania: U.S. Geological Survey Geologic Quadrangle 919, 1 map., https://doi.org/10.3133/gq919.","productDescription":"1 map.","costCenters":[],"links":[{"id":103634,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_2220.htm","linkFileType":{"id":5,"text":"html"},"description":"2220"},{"id":249468,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/gq/0919/report.pdf","size":"36","linkFileType":{"id":1,"text":"pdf"}},{"id":252950,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/gq/0919/report-thumb.jpg"}],"scale":"24000","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -76.5,40.75 ], [ -76.5,40.8675 ], [ -76.36749999999999,40.8675 ], [ -76.36749999999999,40.75 ], [ -76.5,40.75 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4afce4b07f02db69664d","contributors":{"authors":[{"text":"Arndt, Harold H.","contributorId":14412,"corporation":false,"usgs":true,"family":"Arndt","given":"Harold","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":268738,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":15206,"text":"ofr71216 - 1971 - Preliminary map of historic margins of marshland, San Francisco Bay, California","interactions":[],"lastModifiedDate":"2021-11-02T21:08:10.680812","indexId":"ofr71216","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1971","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":"71-216","title":"Preliminary map of historic margins of marshland, San Francisco Bay, California","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey,","doi":"10.3133/ofr71216","usgsCitation":"Nichols, D., and Wright, N.A., 1971, Preliminary map of historic margins of marshland, San Francisco Bay, California: U.S. Geological Survey Open-File Report 71-216, Report: 11 p.; 1 Plate: 23.11 × 36.11 inches, https://doi.org/10.3133/ofr71216.","productDescription":"Report: 11 p.; 1 Plate: 23.11 × 36.11 inches","costCenters":[],"links":[{"id":391289,"rank":4,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_51800.htm"},{"id":44135,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1971/0216/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":44134,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1971/0216/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":147477,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1971/0216/report-thumb.jpg"}],"scale":"250000","country":"United States","state":"California","otherGeospatial":"San Francisco Bay","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -122.7008056640625,\n              37.38107035775657\n            ],\n            [\n              -121.87957763671874,\n              37.38107035775657\n            ],\n            [\n              -121.87957763671874,\n              38.257593120395356\n            ],\n            [\n              -122.7008056640625,\n              38.257593120395356\n            ],\n            [\n              -122.7008056640625,\n              37.38107035775657\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ab0e4b07f02db66d83f","contributors":{"authors":[{"text":"Nichols, D.R.","contributorId":42979,"corporation":false,"usgs":true,"family":"Nichols","given":"D.R.","email":"","affiliations":[],"preferred":false,"id":170740,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wright, N. A.","contributorId":66697,"corporation":false,"usgs":true,"family":"Wright","given":"N.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":170741,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":63763,"text":"gp754 - 1971 - Aeromagnetic map and interpretation of the Salton Sea geothermal area, California","interactions":[],"lastModifiedDate":"2025-07-07T17:39:15.30804","indexId":"gp754","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1971","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":317,"text":"Geophysical Investigations Map","code":"GP","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"754","title":"Aeromagnetic map and interpretation of the Salton Sea geothermal area, California","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/gp754","usgsCitation":"Griscom, A., and Muffler, L., 1971, Aeromagnetic map and interpretation of the Salton Sea geothermal area, California: U.S. Geological Survey Geophysical Investigations Map 754, 1 Plate: 49.97 x 34.44 inches, https://doi.org/10.3133/gp754.","productDescription":"1 Plate: 49.97 x 34.44 inches","costCenters":[],"links":[{"id":253460,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/gp/0754/report-thumb.jpg"},{"id":249946,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/gp/0754/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":249945,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/gp/0754/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":491755,"rank":4,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_6109.htm","linkFileType":{"id":5,"text":"html"}}],"scale":"62500","country":"United States","state":"California","otherGeospatial":"Salton Sea geothermal area","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -115.25,\n              33.0833\n            ],\n            [\n              -115.25,\n              33.4167\n            ],\n            [\n              -116,\n              33.4167\n            ],\n            [\n              -116,\n              33.0833\n            ],\n            [\n              -115.25,\n              33.0833\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b00e4b07f02db6983ff","contributors":{"authors":[{"text":"Griscom, Andrew","contributorId":23520,"corporation":false,"usgs":true,"family":"Griscom","given":"Andrew","email":"","affiliations":[],"preferred":false,"id":269536,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Muffler, L.J.P.","contributorId":63383,"corporation":false,"usgs":true,"family":"Muffler","given":"L.J.P.","affiliations":[],"preferred":false,"id":269537,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":12635,"text":"ofr7129 - 1971 - Total-count gamma radiation map of the Bopolu quadrangle, Liberia","interactions":[{"subject":{"id":12635,"text":"ofr7129 - 1971 - Total-count gamma radiation map of the Bopolu quadrangle, Liberia","indexId":"ofr7129","publicationYear":"1971","noYear":false,"title":"Total-count gamma radiation map of the Bopolu quadrangle, Liberia"},"predicate":"SUPERSEDED_BY","object":{"id":64727,"text":"i772C - 1974 - Total-count gamma radiation map of the Bopolu Quadrangle, Liberia","indexId":"i772C","publicationYear":"1974","noYear":false,"chapter":"C","title":"Total-count gamma radiation map of the Bopolu Quadrangle, Liberia"},"id":1}],"supersededBy":{"id":64727,"text":"i772C - 1974 - Total-count gamma radiation map of the Bopolu Quadrangle, Liberia","indexId":"i772C","publicationYear":"1974","noYear":false,"title":"Total-count gamma radiation map of the Bopolu Quadrangle, Liberia"},"lastModifiedDate":"2012-02-02T00:06:27","indexId":"ofr7129","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1971","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":"71-29","title":"Total-count gamma radiation map of the Bopolu quadrangle, Liberia","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/ofr7129","usgsCitation":"Behrendt, J.C., and Wotorson, C.S., 1971, Total-count gamma radiation map of the Bopolu quadrangle, Liberia: U.S. Geological Survey Open-File Report 71-29, 5 leaves :maps ;27 cm.;  2sheets, scale 1:250,000, https://doi.org/10.3133/ofr7129.","productDescription":"5 leaves :maps ;27 cm.;  2sheets, scale 1:250,000","costCenters":[],"links":[{"id":142994,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"scale":"250000","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a4ee4b07f02db628210","contributors":{"authors":[{"text":"Behrendt, John Charles jbehrendt@usgs.gov","contributorId":74747,"corporation":false,"usgs":true,"family":"Behrendt","given":"John","email":"jbehrendt@usgs.gov","middleInitial":"Charles","affiliations":[],"preferred":false,"id":166455,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wotorson, Cletus S.","contributorId":106854,"corporation":false,"usgs":true,"family":"Wotorson","given":"Cletus","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":166456,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":63777,"text":"gp772 - 1971 - Aeromagnetic map of the Wrentham quadrangle, Norfolk and Bristol Counties, Massachusetts","interactions":[],"lastModifiedDate":"2022-07-21T19:29:41.726983","indexId":"gp772","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1971","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":317,"text":"Geophysical Investigations Map","code":"GP","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"772","title":"Aeromagnetic map of the Wrentham quadrangle, Norfolk and Bristol Counties, Massachusetts","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/gp772","usgsCitation":"Water Resources Division, U.S. Geological Survey, 1971, Aeromagnetic map of the Wrentham quadrangle, Norfolk and Bristol Counties, Massachusetts: U.S. Geological Survey Geophysical Investigations Map 772, Report: 1 p.; 1 Plate: 20.08 × 30.33 inches, https://doi.org/10.3133/gp772.","productDescription":"Report: 1 p.; 1 Plate: 20.08 × 30.33 inches","costCenters":[],"links":[{"id":404278,"rank":4,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_6127.htm","linkFileType":{"id":5,"text":"html"}},{"id":253470,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/gp/0772/report-thumb.jpg"},{"id":249974,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/gp/0772/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":249973,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/gp/0772/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"scale":"24000","country":"United States","state":"Massachusetts","county":"Bristol County, Norfolk County","otherGeospatial":"Wrentham quadrangle","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -71.375,\n              42\n            ],\n            [\n              -71.25,\n              42\n            ],\n            [\n              -71.25,\n              42.125\n            ],\n            [\n              -71.375,\n              42.125\n            ],\n            [\n              -71.375,\n              42\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae6e4b07f02db68baa6","contributors":{"authors":[{"text":"Water Resources Division, U.S. Geological Survey","contributorId":128075,"corporation":true,"usgs":false,"organization":"Water Resources Division, U.S. Geological Survey","id":533247,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":15717,"text":"ofr71242 - 1971 - Geology and economic potential for chromite in the Zhob Valley ultramafic rock complex, Hindubagh, Quetta division, West Pakistan","interactions":[],"lastModifiedDate":"2012-02-02T00:07:07","indexId":"ofr71242","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1971","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":"71-242","title":"Geology and economic potential for chromite in the Zhob Valley ultramafic rock complex, Hindubagh, Quetta division, West Pakistan","docAbstract":"The ultramafic rocks making up the Zhob Valley igneous complex have yielded small amounts of metallurgical-grade chromite since the early part of the century. From 1968-1970 a cooperative study undertaken by the Geological Survey of Pakistan and the U. S. Geological Survey, under the auspices of the Government of Pakistan and the Agency for International Development, evaluated the chromite potential of the Zhob Valley area and provided data for effective exploration. \r\n\r\nThe Jung Tor Ghar ultramafic rock mass, covering an area of about 45 square miles, is a thrust-fault block completely surrounded and underlain (?) by sedimentary rocks as young as Late Cretaceous in age. The igneous rocks were thrust from the northwest along an east-trending, north-dipping fault in Late Cretaceous or Paleocene time and were peneplaned, dissected, and deeply laterized by mid-Eocene time. \r\n\r\nThe ultramafic rocks consist of interlayered harzburgite and dunite and a cross-cutting dunite here called transgressive dunite. Layered structure passes without discernible deviation from the interlayered harzburgite-dunite through the transgressive dunite. The lowest rocks in the mass, composed mainly of transgressive dunite, grade upward into the interlayered rock about 3,000 feet above the fault block base. The upper transgressive dunites tend to form interconnecting linear networks and probably a few pipe-like structures. The transgressive dunite is thought to have formed by action of water derived from the underlying sedimentary rocks; the water heated by the hot ultramafic rock (at the time of emplacement) altered the pyroxene to olivine and talc, and, with lowering temperature, to serpentine. Other interpretations are possible. \r\n\r\nVirtually all the chromite in the Jung Tor Ghar lies in or immediately above the masses of transgressive dunite. This fact provides a key to chromite exploration: The most favorable zone for prospecting lies in the vicinity of the upper contacts of the transgressive dunite masses where they. are flatly dipping; if the transgressive dunite masses are steeply dipping or pipe-like, the chromite tends to be more centrally located. \r\n\r\nThe Jung Tor Ghar is believed to contain enough unmined chromite at practical minable depths to equal or exceed that mined to date but the individual deposits are likely to be small.","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/ofr71242","usgsCitation":"Rossman, D.L., Ahmad, Z., and Rahman, H., 1971, Geology and economic potential for chromite in the Zhob Valley ultramafic rock complex, Hindubagh, Quetta division, West Pakistan: U.S. Geological Survey Open-File Report 71-242, ii, 63 leaves :ill., maps ;27 cm., https://doi.org/10.3133/ofr71242.","productDescription":"ii, 63 leaves :ill., maps ;27 cm.","costCenters":[],"links":[{"id":148462,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1971/0242/report-thumb.jpg"},{"id":44731,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1971/0242/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":44732,"rank":401,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1971/0242/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":44733,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1971/0242/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a81e4b07f02db64a28e","contributors":{"authors":[{"text":"Rossman, Darwin L.","contributorId":94663,"corporation":false,"usgs":true,"family":"Rossman","given":"Darwin","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":171595,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ahmad, Zaki","contributorId":85205,"corporation":false,"usgs":true,"family":"Ahmad","given":"Zaki","email":"","affiliations":[],"preferred":false,"id":171594,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Rahman, Hamidur","contributorId":51757,"corporation":false,"usgs":true,"family":"Rahman","given":"Hamidur","email":"","affiliations":[],"preferred":false,"id":171593,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":64807,"text":"i615 - 1971 - Geologic map of the Orocovis Quadrangle, Puerto Rico","interactions":[],"lastModifiedDate":"2012-02-10T00:10:56","indexId":"i615","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1971","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":320,"text":"IMAP","code":"I","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"615","subseriesTitle":"NONE","title":"Geologic map of the Orocovis Quadrangle, Puerto Rico","language":"ENGLISH","doi":"10.3133/i615","usgsCitation":"Briggs, R.P., 1971, Geologic map of the Orocovis Quadrangle, Puerto Rico: U.S. Geological Survey IMAP 615, 1 map., https://doi.org/10.3133/i615.","productDescription":"1 map.","costCenters":[],"links":[{"id":106869,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_9406.htm","linkFileType":{"id":5,"text":"html"},"description":"9406"},{"id":186993,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":91441,"rank":401,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/imap/0615/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}}],"scale":"20000","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -66.5,18.1175 ], [ -66.5,18.25 ], [ -66.36749999999999,18.25 ], [ -66.36749999999999,18.1175 ], [ -66.5,18.1175 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4af6e4b07f02db692f9e","contributors":{"authors":[{"text":"Briggs, R. P.","contributorId":47797,"corporation":false,"usgs":true,"family":"Briggs","given":"R.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":272188,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":12537,"text":"ofr7113 - 1971 - Preliminary geologic map of the Dengate quadrangle, Morton County, North Dakota","interactions":[{"subject":{"id":12537,"text":"ofr7113 - 1971 - Preliminary geologic map of the Dengate quadrangle, Morton County, North Dakota","indexId":"ofr7113","publicationYear":"1971","noYear":false,"title":"Preliminary geologic map of the Dengate quadrangle, Morton County, North Dakota"},"predicate":"SUPERSEDED_BY","object":{"id":69262,"text":"coal67 - 1974 - Geologic map and lignite deposits of the Dengate Quadrangle, Morton County, North Dakota","indexId":"coal67","publicationYear":"1974","noYear":false,"title":"Geologic map and lignite deposits of the Dengate Quadrangle, Morton County, North Dakota"},"id":1}],"supersededBy":{"id":69262,"text":"coal67 - 1974 - Geologic map and lignite deposits of the Dengate Quadrangle, Morton County, North Dakota","indexId":"coal67","publicationYear":"1974","noYear":false,"title":"Geologic map and lignite deposits of the Dengate Quadrangle, Morton County, North Dakota"},"lastModifiedDate":"2025-08-04T14:51:51.18548","indexId":"ofr7113","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1971","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":"71-13","title":"Preliminary geologic map of the Dengate quadrangle, Morton County, North Dakota","docAbstract":"<p>The Dengate quadrangle is an area of approximately 51 square miles in western Morton County, southwestern North Dakota. The quadrangle is about 40 miles west of Bismarck, the State capitol (fig. 1) and about 3.5 miles east of Glen Ullin (population 1,087). Interstate Highway 94,U.S. Highway 10, and the Northern Pacific Railroad cross the northern part of the area in an east-west direction.</p><p>The Dengate quadrangle is one of a group of 14 adjoining 71/2-minute quadrangles (fig. 1) that are being mapped by the U.S. Geological Survey to furnish a basis for classification of lands withdrawn by the Federal Government pending classification for coal, and to contribute to the geologic map atlas of the United States. Most of the fieldwork for the Dengate quadrangle was done during the late summers and early autumns of 1965 and 1966.</p><p>During the summer of 1966, the U.S. Geological Survey conducted a drilling program in the Dengate and nearby quadrangles (Smith, 1970) to gather information on the existence, thickness, and depth of lignite beds in withdrawn Federal lands. Two of the holes drilled are in the Dengate quadrangle.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr7113","usgsCitation":"Barclay, C., 1971, Preliminary geologic map of the Dengate quadrangle, Morton County, North Dakota: U.S. Geological Survey Open-File Report 71-13, Report: 31 p.; 4 Plates: 36.43 x 62.35 inches or smaller; 3 Tables: 27.37 x 25.14 inches or smaller, https://doi.org/10.3133/ofr7113.","productDescription":"Report: 31 p.; 4 Plates: 36.43 x 62.35 inches or smaller; 3 Tables: 27.37 x 25.14 inches or 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,{"id":41406,"text":"ofr71187 - 1971 - Preliminary geologic map of the Funeral Mountains in the Ryan Quadrangle, Death Valley region, Inyo County, California","interactions":[],"lastModifiedDate":"2012-02-02T00:10:34","indexId":"ofr71187","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1971","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":"71-187","title":"Preliminary geologic map of the Funeral Mountains in the Ryan Quadrangle, Death Valley region, Inyo County, California","language":"ENGLISH","doi":"10.3133/ofr71187","usgsCitation":"McAllister, J., 1971, Preliminary geologic map of the Funeral Mountains in the Ryan Quadrangle, Death Valley region, Inyo County, California: U.S. Geological Survey Open-File Report 71-187, 1 map ;82 x 104 cm. fold. in envelope 25 x 31 cm., https://doi.org/10.3133/ofr71187.","productDescription":"1 map ;82 x 104 cm. fold. in envelope 25 x 31 cm.","costCenters":[],"links":[{"id":173715,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":79156,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1971/0187/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac7e4b07f02db67b392","contributors":{"authors":[{"text":"McAllister, James F.","contributorId":70364,"corporation":false,"usgs":true,"family":"McAllister","given":"James F.","affiliations":[],"preferred":false,"id":224969,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":61257,"text":"mf317 - 1971 - Map showing locations of samples dated by radiocarbon methods in the San Francisco Bay region","interactions":[],"lastModifiedDate":"2016-08-23T10:17:52","indexId":"mf317","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1971","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":"317","title":"Map showing locations of samples dated by radiocarbon methods in the San Francisco Bay region","docAbstract":"<p>Radiocarbon dating is an important interdisciplinary tool for studies involving events and processes during the last 40,000 years of earth history, including studies involving marine transgressions and regressions, land subsidence, climatic changes, sedimentation rates and patterns, fault movements, and archaeology, among others.</p>\n<p>The potential value of a radiocarbon date is diminished, however, if adequate site data are not taken with the sample and do not accompany the date in publication. &nbsp;At a minimum, published dates should include an accurate location for the dated sample, type of material dated and method of dating, nature of the site, depth below surface (or other accurately defined datum) of date sample, stratigraphy of material overlying date sample, and the significance of the data in the study.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/mf317","usgsCitation":"Wright, R.H., 1971, Map showing locations of samples dated by radiocarbon methods in the San Francisco Bay region: U.S. Geological Survey Miscellaneous Field Studies Map 317, 35.21 x 22.90 inches, https://doi.org/10.3133/mf317.","productDescription":"35.21 x 22.90 inches","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":187180,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/mf317.PNG"},{"id":327573,"rank":1,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/0317/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}}],"scale":"0","country":"United States","state":"California","otherGeospatial":"San Francisco Bay","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -123.75,36.5 ], [ -123.75,39 ], [ -121.08333333333333,39 ], [ -121.08333333333333,36.5 ], [ -123.75,36.5 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b15e4b07f02db6a49b2","contributors":{"authors":[{"text":"Wright, Robert H.","contributorId":69180,"corporation":false,"usgs":true,"family":"Wright","given":"Robert","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":265271,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":24647,"text":"ofr72365 - 1971 - Relation of drainage problems to high ground-water levels, Coconut Grove area, Oahu, Hawaii","interactions":[],"lastModifiedDate":"2014-05-21T10:37:14","indexId":"ofr72365","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1971","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":"72-365","title":"Relation of drainage problems to high ground-water levels, Coconut Grove area, Oahu, Hawaii","docAbstract":"<p>Purpose and Scope</p>\n<br/>\n<p>In 1969, hydrologic data-collection sites were established in and around the Coconut Grove area for the purpose of measuring directly the relationship between rainfall, runoff, ground-water levels, the level of water in Kawainui Swamp and the canals, and tidal fluctuations. The primary objective was to identify the causes of the occurrence and persistence of flooding and to gain data on which to base recommendations for remedial action.</p>\n<br/>\n<p>The scope of the study included establishing and operating flow and stage-recording gages on the Swamp, Kawainui Canal, and the inner canal; periodic and repeated measurements of ground-water level in test borings throughout the residential area; collection and analysis of soil and construction borings made for engineering purposes; the assembly and analysis of all available data relating surface and subsurface flow conditions, and the development of conclusions as to the causes and means to alleviate the flooding. This report summarizes the information collected from October 1969 to June 1971, includes analysis of the data, and discusses the probable causes of flooding.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Honolulu, Hawaii","doi":"10.3133/ofr72365","issn":"0094-9140","collaboration":"Prepared in cooperation with the Department of Public Works, City and County of Honolulu, Hawaii","usgsCitation":"Swain, L., and Huxel, C., 1971, Relation of drainage problems to high ground-water levels, Coconut Grove area, Oahu, Hawaii: U.S. Geological Survey Open-File Report 72-365, iii, 20 p., https://doi.org/10.3133/ofr72365.","productDescription":"iii, 20 p.","numberOfPages":"24","costCenters":[],"links":[{"id":287458,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":287457,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1972/0365/report.pdf"}],"country":"United States","state":"Hawai'i","otherGeospatial":"O'ahu","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -157.769571,21.379744 ], [ -157.769571,21.430626 ], [ -157.710658,21.430626 ], [ -157.710658,21.379744 ], [ -157.769571,21.379744 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac8e4b07f02db67c2bc","contributors":{"authors":[{"text":"Swain, L.A.","contributorId":11249,"corporation":false,"usgs":true,"family":"Swain","given":"L.A.","email":"","affiliations":[],"preferred":false,"id":192317,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Huxel, C.J. Jr.","contributorId":95514,"corporation":false,"usgs":true,"family":"Huxel","given":"C.J.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":192318,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":4665,"text":"twri05A2 - 1971 - Determination of minor elements in water by emission spectroscopy","interactions":[],"lastModifiedDate":"2021-05-28T18:22:21.899438","indexId":"twri05A2","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1971","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":336,"text":"Techniques of Water-Resources Investigations","code":"TWRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"05-A2","title":"Determination of minor elements in water by emission spectroscopy","docAbstract":"With the emission spectrograph, the analyst is able to determine many minor elements simultaneously in water samples. Spectrographic methods differ chiefly in techniques of preconcentrating the elements. For waters with dissolved solids of less than 1,000 milligrams per liter, the method of evaporating to dryness and determining the elements in the dried residue is sensitive, precise, and reasonably accurate. The lower limits of detection vary with the quantity of dissolved solids. Twenty-four elements are determined by this method.\r\nFor waters with more than 1,000 milligrams per liter of dissolved solids, it is necessary to separate the minor elements from the major constituents before spectrographically determining the former, in order to achieve adequate lower limits of detection. Such procedures generally require more time than the residue method. In the first of two such procedures given, 21 of the metallic elements are precipitated with thioacetamide prior to spectrographic determination. In an alternate procedure, 18 elements are precipitated quantitatively with complexing reagents 8-hydroxyquinoline, tannic acid, and thioanlide. This method is faster than the thioacetamide method, but at the sacrifice of some elements. A Fortran IV computer program for processing densitometric data is given in the section 'Computer Program.'","language":"English","publisher":"U.S. Govt. Print. Off., For sale by the Superintendent of Documents,","doi":"10.3133/twri05A2","usgsCitation":"Barnett, P.R., and Mallory, E.C., 1971, Determination of minor elements in water by emission spectroscopy: U.S. Geological Survey Techniques of Water-Resources Investigations 05-A2, v, 31 p., https://doi.org/10.3133/twri05A2.","productDescription":"v, 31 p.","costCenters":[{"id":452,"text":"National Water Quality Laboratory","active":true,"usgs":true}],"links":[{"id":139511,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":191,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/twri/twri5a2/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4aa8e4b07f02db6675a4","contributors":{"authors":[{"text":"Barnett, Paul R.","contributorId":29801,"corporation":false,"usgs":true,"family":"Barnett","given":"Paul","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":149587,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mallory, E. C.","contributorId":90700,"corporation":false,"usgs":true,"family":"Mallory","given":"E.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":149588,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":732,"text":"wsp1914 - 1971 - Surface water supply of the United States, 1961-65: Part 5. Hudson Bay and upper Mississippi River basins: Volume 2. Upper Mississippi River basin above Keokuk, Iowa","interactions":[],"lastModifiedDate":"2022-11-02T20:51:44.899797","indexId":"wsp1914","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1971","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":341,"text":"Water Supply Paper","code":"WSP","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"1914","title":"Surface water supply of the United States, 1961-65: Part 5. Hudson Bay and upper Mississippi River basins: Volume 2. Upper Mississippi River basin above Keokuk, Iowa","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/wsp1914","usgsCitation":"Water Resources Division, U.S. Geological Survey, 1971, Surface water supply of the United States, 1961-65: Part 5. Hudson Bay and upper Mississippi River basins: Volume 2. Upper Mississippi River basin above Keokuk, Iowa: U.S. Geological Survey Water Supply Paper 1914, Report: ix, 750 p.; 1 Plate: 19.50 × 23.50 inches, https://doi.org/10.3133/wsp1914.","productDescription":"Report: ix, 750 p.; 1 Plate: 19.50 × 23.50 inches","costCenters":[],"links":[{"id":409086,"rank":4,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_25138.htm","linkFileType":{"id":5,"text":"html"}},{"id":25299,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/wsp/1914/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":25300,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wsp/1914/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":136319,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wsp/1914/report-thumb.jpg"}],"country":"United States","state":"Illinois, Iowa, Minnesota, Wisconsin","otherGeospatial":"Upper Mississippi River basin","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -88.794,\n              47.617\n            ],\n            [\n              -97,\n              47.617\n            ],\n            [\n              -97,\n              40.399\n            ],\n            [\n              -88.794,\n              40.399\n            ],\n            [\n              -88.794,\n              47.617\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4af6e4b07f02db692b0a","contributors":{"authors":[{"text":"Water Resources Division, U.S. Geological Survey","contributorId":128075,"corporation":true,"usgs":false,"organization":"Water Resources Division, U.S. Geological Survey","id":527669,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
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