The Powder River Basin of Wyoming and Montana contains some of the world's most extensive deposits of low sulfur subbituminous coal. The major coal beds occur in the upper part of the Fort Union and lower part of the Wasatch Formations of early Tertiary age (deposited about 60 to 50 million years ago). Most of the coal beds have been given informal names by local workers; names used in the Reno Junction-Antelope Creek area are shown on the fence diagram and on the sample well logs (fig. 1). Conditions leading to the formation of these coal deposits in the geologic past are discussed by R. W. Brown (1958, 1962).
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/mf960","usgsCitation":"Denson, N., Dover, J.H., and Osmonson, L.M., 1978, Lower Tertiary coal bed distribution and coal resources of the Reno Junction-Antelope Creek area, Campbell, Converse, Niobrara, and Weston counties, Wyoming: U.S. Geological Survey Miscellaneous Field Studies Map 960, 57.80 x 36.18 inches, https://doi.org/10.3133/mf960.","productDescription":"57.80 x 36.18 inches","costCenters":[],"links":[{"id":182264,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/mf/0960/report-thumb.jpg"},{"id":359990,"rank":2,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/0960/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}}],"scale":"0","country":"United States","state":"Wyoming","county":"Campbell County, Converse County, Niobrara County, Weston County","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -105.66666666666667,43.333333333333336 ], [ -105.66666666666667,43.833333333333336 ], [ -105,43.833333333333336 ], [ -105,43.333333333333336 ], [ -105.66666666666667,43.333333333333336 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a7fe4b07f02db64898e","contributors":{"authors":[{"text":"Denson, N.M.","contributorId":79458,"corporation":false,"usgs":true,"family":"Denson","given":"N.M.","affiliations":[],"preferred":false,"id":261828,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dover, J. H.","contributorId":75545,"corporation":false,"usgs":true,"family":"Dover","given":"J.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":261827,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Osmonson, L. M.","contributorId":91912,"corporation":false,"usgs":true,"family":"Osmonson","given":"L.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":261829,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":59345,"text":"mf961 - 1978 - Structure contour and isopach maps of the Wyodak-Anderson coal bed in the Reno Junction-Antelope Creek area, Campbell and Converse counties, Wyoming","interactions":[],"lastModifiedDate":"2019-05-21T11:15:07","indexId":"mf961","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1978","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":"961","title":"Structure contour and isopach maps of the Wyodak-Anderson coal bed in the Reno Junction-Antelope Creek area, Campbell and Converse counties, Wyoming","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/mf961","usgsCitation":"Denson, N., Dover, J.H., and Osmonson, L.M., 1978, Structure contour and isopach maps of the Wyodak-Anderson coal bed in the Reno Junction-Antelope Creek area, Campbell and Converse counties, Wyoming: U.S. Geological Survey Miscellaneous Field Studies Map 961, 2 Plates: 61 x 47 cm., https://doi.org/10.3133/mf961.","productDescription":"2 Plates: 61 x 47 cm.","costCenters":[],"links":[{"id":364038,"rank":2,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/0961/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":182265,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/mf/0961/report-thumb.jpg"}],"scale":"26580","country":"United States","state":"Wyoming","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -105.80111111111111,43.30027777777777 ], [ -105.80111111111111,43.95138888888889 ], [ -105.08333333333333,43.95138888888889 ], [ -105.08333333333333,43.30027777777777 ], [ -105.80111111111111,43.30027777777777 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b12e4b07f02db6a2b88","contributors":{"authors":[{"text":"Denson, N.M.","contributorId":79458,"corporation":false,"usgs":true,"family":"Denson","given":"N.M.","affiliations":[],"preferred":false,"id":261831,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dover, J. H.","contributorId":75545,"corporation":false,"usgs":true,"family":"Dover","given":"J.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":261830,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Osmonson, L. M.","contributorId":91912,"corporation":false,"usgs":true,"family":"Osmonson","given":"L.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":261832,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":59170,"text":"mf987 - 1978 - Surficial geologic map of the Piney Canyon SW Quadrangle, Campbell County, Wyoming","interactions":[],"lastModifiedDate":"2012-02-10T00:10:34","indexId":"mf987","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1978","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":"987","title":"Surficial geologic map of the Piney Canyon SW Quadrangle, Campbell County, Wyoming","language":"ENGLISH","doi":"10.3133/mf987","usgsCitation":"Coates, D.A., and Moore, H., 1978, Surficial geologic map of the Piney Canyon SW Quadrangle, Campbell County, Wyoming: U.S. Geological Survey Miscellaneous Field Studies Map 987, 1 map ;42 x 58 cm. on sheet 74 x 112 cm., https://doi.org/10.3133/mf987.","productDescription":"1 map ;42 x 58 cm. on sheet 74 x 112 cm.","costCenters":[],"links":[{"id":105688,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_6832.htm","linkFileType":{"id":5,"text":"html"},"description":"6832"},{"id":180506,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"scale":"24000","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -105.25,43.5 ], [ -105.25,43.6175 ], [ -105.11749999999999,43.6175 ], [ -105.11749999999999,43.5 ], [ -105.25,43.5 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae2e4b07f02db688dff","contributors":{"authors":[{"text":"Coates, D. A.","contributorId":63096,"corporation":false,"usgs":true,"family":"Coates","given":"D.","middleInitial":"A.","affiliations":[],"preferred":false,"id":261563,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Moore, H.D.","contributorId":75628,"corporation":false,"usgs":true,"family":"Moore","given":"H.D.","email":"","affiliations":[],"preferred":false,"id":261564,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":59519,"text":"mf1021B - 1978 - Geological studies of the Charleston, South Carolina, area; thickness of overburden map","interactions":[],"lastModifiedDate":"2012-02-10T00:10:14","indexId":"mf1021B","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1978","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":"1021","chapter":"B","title":"Geological studies of the Charleston, South Carolina, area; thickness of overburden map","language":"ENGLISH","doi":"10.3133/mf1021B","usgsCitation":"Force, L., 1978, Geological studies of the Charleston, South Carolina, area; thickness of overburden map: U.S. Geological Survey Miscellaneous Field Studies Map 1021, 1 map ;95 x 79 cm. fold. to 18 x 26 cm. in envelope 31 x 25 cm., https://doi.org/10.3133/mf1021B.","productDescription":"1 map ;95 x 79 cm. fold. to 18 x 26 cm. in envelope 31 x 25 cm.","costCenters":[],"links":[{"id":105410,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_6386.htm","linkFileType":{"id":5,"text":"html"},"description":"6386"},{"id":184666,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"scale":"250000","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -81,32.25 ], [ -81,33.5 ], [ -79,33.5 ], [ -79,32.25 ], [ -81,32.25 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4adee4b07f02db687489","contributors":{"authors":[{"text":"Force, L.M.","contributorId":7266,"corporation":false,"usgs":true,"family":"Force","given":"L.M.","email":"","affiliations":[],"preferred":false,"id":262154,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":60178,"text":"mf956 - 1978 - Aerial gamma-ray maps of part of the southern Powder River basin in Converse County, Wyoming","interactions":[],"lastModifiedDate":"2013-08-12T11:39:07","indexId":"mf956","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1978","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":"956","title":"Aerial gamma-ray maps of part of the southern Powder River basin in Converse County, Wyoming","language":"ENGLISH","doi":"10.3133/mf956","usgsCitation":"Macke, D., Duval, J.S., and Pitkin, J.A., 1978, Aerial gamma-ray maps of part of the southern Powder River basin in Converse County, Wyoming: U.S. Geological Survey Miscellaneous Field Studies Map 956, 7 maps ;48 x 28 cm. each on 2 sheets 112 x 83 cm. and 112 x 71 cm. fold. in envelope 25 x 31 cm., https://doi.org/10.3133/mf956.","productDescription":"7 maps ;48 x 28 cm. each on 2 sheets 112 x 83 cm. and 112 x 71 cm. fold. in envelope 25 x 31 cm.","costCenters":[],"links":[{"id":179766,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":276378,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/0956/plate-2.pdf"},{"id":275772,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/0956/plate-1.pdf"}],"scale":"25000","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -105.75,43 ], [ -105.75,43.25 ], [ -105.5,43.25 ], [ -105.5,43 ], [ -105.75,43 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b04e4b07f02db6991e1","contributors":{"authors":[{"text":"Macke, D. L.","contributorId":101643,"corporation":false,"usgs":true,"family":"Macke","given":"D. L.","affiliations":[],"preferred":false,"id":263274,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Duval, J. S.","contributorId":15200,"corporation":false,"usgs":true,"family":"Duval","given":"J.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":263272,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Pitkin, J. A.","contributorId":85194,"corporation":false,"usgs":true,"family":"Pitkin","given":"J.","middleInitial":"A.","affiliations":[],"preferred":false,"id":263273,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":61224,"text":"mf989 - 1978 - Surficial geologic map of the Wildcat Quadrangle, Campbell County, Wyoming","interactions":[],"lastModifiedDate":"2012-02-10T00:10:29","indexId":"mf989","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1978","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":"989","title":"Surficial geologic map of the Wildcat Quadrangle, Campbell County, Wyoming","language":"ENGLISH","doi":"10.3133/mf989","usgsCitation":"Williams, V.S., and McElwain, P., 1978, Surficial geologic map of the Wildcat Quadrangle, Campbell County, Wyoming: U.S. Geological Survey Miscellaneous Field Studies Map 989, 1 map ;42 x 58 cm. on sheet 74 x 112 cm., https://doi.org/10.3133/mf989.","productDescription":"1 map ;42 x 58 cm. on sheet 74 x 112 cm.","costCenters":[],"links":[{"id":105690,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_6834.htm","linkFileType":{"id":5,"text":"html"},"description":"6834"},{"id":183171,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"scale":"24000","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -105.75,44.5 ], [ -105.75,44.6175 ], [ -105.61749999999999,44.6175 ], [ -105.61749999999999,44.5 ], [ -105.75,44.5 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae2e4b07f02db688cad","contributors":{"authors":[{"text":"Williams, V. S.","contributorId":8876,"corporation":false,"usgs":true,"family":"Williams","given":"V.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":265210,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"McElwain, Paul","contributorId":100070,"corporation":false,"usgs":true,"family":"McElwain","given":"Paul","email":"","affiliations":[],"preferred":false,"id":265211,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":61013,"text":"mf928A - 1978 - Maps showing land status and well locations and tables of well data, eastern North Slope Petroleum Province, Alaska","interactions":[],"lastModifiedDate":"2012-02-10T00:10:30","indexId":"mf928A","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1978","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":"928","chapter":"A","title":"Maps showing land status and well locations and tables of well data, eastern North Slope Petroleum Province, Alaska","language":"ENGLISH","doi":"10.3133/mf928A","usgsCitation":"Tailleur, I.L., and Engwicht, S., 1978, Maps showing land status and well locations and tables of well data, eastern North Slope Petroleum Province, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map 928, 2 maps and 3 tables ;52 x 74 cm. on 5 sheets., https://doi.org/10.3133/mf928A.","productDescription":"2 maps and 3 tables ;52 x 74 cm. on 5 sheets.","costCenters":[],"links":[{"id":105624,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_6745.htm","linkFileType":{"id":5,"text":"html"},"description":"6745"},{"id":182880,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"scale":"500000","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -153,69 ], [ -153,71 ], [ -144,71 ], [ -144,69 ], [ -153,69 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a19e4b07f02db605b1f","contributors":{"authors":[{"text":"Tailleur, I. 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The map is a part of a series of geochemical maps that together with the background information circular (Reiser and others, 1978) comprise the folio on the Chandalar quadrangle, Alaska. The data are plotted on a subdued base map showing the generalized geology, topography, and sample localities. Map symbols showing the ranges of metal values are indicated on the accompanying histograms and all values shown are considered anomalous. An explanation of sampling, preparation, analytical procedures, and geochemical raw data for all samples are discussed by O'Leary and others (1976). The -80 mesh (177 micrometers) stream sediment medium was used in this study because of the regional setting in the north-central Brooks Range. Given the rather restrictive time and manpower constraints the -80 mesh (177 micrometers) stream sediment combined with panned concentrates was determined to be the most economical and adequate medium in this case where clastic sediments are being derived from local bedrock.
The study area is generally one of high relief with short fast-moving streams and broad glacial valleys. All samples were taken from active streams, as close to the center channel as possible. All sediments were considered to be locally derived. Care was taken, when sampling an obviously glaciated terrane, to sample above or upstream from morainal material, wherever possible. Most samples were taken in areas where bedrock was within 30 m of the sample site.
Due to the poor sensitivity by spectrographic analysis for arsenic, 200 ppm (parts per million), all arsenic analyses were done by colorimetry.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/mf878G","usgsCitation":"Marsh, S., Detra, D., and Smith, S., 1978, Geochemical and generalized geologic map showing distribution and abundance of barium, arsenic, boron, and vanadium in stream sediments in the Chandalar Quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map 878, 1 Plate: 40.94 x 34.75 inches, https://doi.org/10.3133/mf878G.","productDescription":"1 Plate: 40.94 x 34.75 inches","costCenters":[],"links":[{"id":183637,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/mf/0878-G/report-thumb.jpg"},{"id":417264,"rank":2,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/0878-G/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}}],"scale":"250000","country":"United States","state":"Alaska","otherGeospatial":"Chandalar Quadrangle","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -150,67 ], [ -150,68 ], [ -147,68 ], [ -147,67 ], [ -150,67 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b24e4b07f02db6ae84b","contributors":{"authors":[{"text":"Marsh, S.P.","contributorId":32913,"corporation":false,"usgs":true,"family":"Marsh","given":"S.P.","email":"","affiliations":[],"preferred":false,"id":263321,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Detra, D.E.","contributorId":72358,"corporation":false,"usgs":true,"family":"Detra","given":"D.E.","email":"","affiliations":[],"preferred":false,"id":263322,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Smith, S.C.","contributorId":16833,"corporation":false,"usgs":true,"family":"Smith","given":"S.C.","email":"","affiliations":[],"preferred":false,"id":263320,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":59701,"text":"mf1036 - 1978 - Geologic map of the Hurley East Quadrangle, Grant County, New Mexico","interactions":[],"lastModifiedDate":"2012-02-10T00:10:23","indexId":"mf1036","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1978","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":"1036","title":"Geologic map of the Hurley East Quadrangle, Grant County, New Mexico","language":"ENGLISH","doi":"10.3133/mf1036","usgsCitation":"Hedlund, D.C., 1978, Geologic map of the Hurley East Quadrangle, Grant County, New Mexico: U.S. Geological Survey Miscellaneous Field Studies Map 1036, 1 map ;58 x 49 cm. on sheet 112 x 91 cm. in envelope 25 x 31 cm., https://doi.org/10.3133/mf1036.","productDescription":"1 map ;58 x 49 cm. on sheet 112 x 91 cm. in envelope 25 x 31 cm.","costCenters":[],"links":[{"id":105419,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_6400.htm","linkFileType":{"id":5,"text":"html"},"description":"6400"},{"id":183024,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"scale":"24000","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -108.11749999999999,32.6175 ], [ -108.11749999999999,32.75 ], [ -108,32.75 ], [ -108,32.6175 ], [ -108.11749999999999,32.6175 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b00e4b07f02db697f7c","contributors":{"authors":[{"text":"Hedlund, D. 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M.","contributorId":44894,"corporation":false,"usgs":true,"family":"O’Leary","given":"R.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":258894,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Day, G.W.","contributorId":63363,"corporation":false,"usgs":true,"family":"Day","given":"G.W.","email":"","affiliations":[],"preferred":false,"id":258895,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"McDanal, S.K.","contributorId":108078,"corporation":false,"usgs":true,"family":"McDanal","given":"S.K.","email":"","affiliations":[],"preferred":false,"id":258897,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":61012,"text":"mf928U - 1978 - Map showing depth to basement from drilling and from seismic exploration, eastern North Slope petroleum province, Alaska","interactions":[],"lastModifiedDate":"2012-02-10T00:10:30","indexId":"mf928U","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1978","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":"928","chapter":"U","title":"Map showing depth to basement from drilling and from seismic exploration, eastern North Slope petroleum province, Alaska","language":"ENGLISH","doi":"10.3133/mf928U","usgsCitation":"Tailleur, I., Bird, K.J., and Engwicht, S., 1978, Map showing depth to basement from drilling and from seismic exploration, eastern North Slope petroleum province, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map 928, 1 map ;51 x 73 cm., https://doi.org/10.3133/mf928U.","productDescription":"1 map ;51 x 73 cm.","costCenters":[],"links":[{"id":105644,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_6765.htm","linkFileType":{"id":5,"text":"html"},"description":"6765"},{"id":182879,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"scale":"500000","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -153,69 ], [ -153,71 ], [ -144,71 ], [ -144,69 ], [ -153,69 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a9be4b07f02db65de10","contributors":{"authors":[{"text":"Tailleur, I.L.","contributorId":59027,"corporation":false,"usgs":true,"family":"Tailleur","given":"I.L.","email":"","affiliations":[],"preferred":false,"id":264827,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bird, K. 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The map is a part of a series of geochemical maps that together with the background information circular (Reiser and others, 1978) comprise the folio on the Chandalar quadrangle, Alaska. The data are plotted on a subdued base map showing the generalized geology, topography, and sample localities. Map symbols showing the ranges of metal values are indicated on the accompanying histograms and all values shown are considered anomalous. An explanation of sampling, preparation, analytical procedures and geochemical raw data for all samples are discussed by O'Leary and others (1976). The -80 mesh (177 micrometers) stream sediment medium was used in this study because of the regional setting in the north-central Brooks Range. Given the rather restrictive time and manpower constraints the -80 mesh (177 micrometers) stream sediment combined with panned concentrates was determined to be the most economical and adequate medium in this case where clastic sediments are being derived from local bedrock.
The study area is generally one of high relief with short fast-moving streams and broad glacial valleys. All samples were taken from active streams, as close to the center channel as possible. All sediments were considered to be locally derived. Care was taken, when sampling an obviously glaciated terrane, to sample above or upstream from morainal material, wherever possible. Most samples were taken in areas where bedrock was within 30 m of the sample site.
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