{"pageNumber":"63","pageRowStart":"1550","pageSize":"25","recordCount":2263,"records":[{"id":9227,"text":"ofr83333 - 1983 - Reconnaissance geology of the Jabal Dalfa Quadrangle, sheet 21/43 C, Kingdom of Saudi Arabia","interactions":[],"lastModifiedDate":"2012-02-02T00:06:18","indexId":"ofr83333","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1983","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":"83-333","title":"Reconnaissance geology of the Jabal Dalfa Quadrangle, sheet 21/43 C, Kingdom of Saudi Arabia","docAbstract":"The Jabal Dalfa quadrangle (sheet 21/43 C) is part of the Najd province in west-central Saudi Arabia. The quadrangle is mostly a plain, tilted gently northeastward, but local inselbergs and two areas of dissected uplands rise as much as 200 m above the plain. Wadi Bishah and Wadi Ranyah terminate in the quadrangle. \r\n\r\nThe quadrangle is underlain by Precambrian metavolcanic, metasedimentary, and plutonic rocks. The gneiss outcrops in the northeast and east-central parts of the quadrangle are apparently the oldest rocks. After they were emplaced, a wide variety of metavolcanic and metasedimentary rocks were deposited at Jabal Dalfa and Umm Shat, and in the northeast part of the quadrangle as the Arfan formation. Subsequently, granite gneiss was emplaced in the west part of the quadrangle and intruded by gabbro. Metabasalt and meta-andesite were extruded in a wide north-trending belt through the middle of the quadrangle and at Jabal Silli. Intrusion of small bodies of granitic rocks and Najd faulting conclude the Precambrian history of the area. \r\n\r\nSurficial deposits include sand and gravel covering the plains, alluvial fans, and voluminous dune sands. \r\n\r\nIn the southeast part of the quadrangle, the layered rocks strike north and dip steeply. They are oriented parallel to the Nabitah fault zone. In the northeast and east-central parts of the quadrangle, layered rocks and gneiss are sheared into slices by the southernmost faults of the major Najd fault zone. Bedding and foliation in these slices strike northwest, parallel to the faults. Gneiss in the west part of the quadrangle also strikes northwest, and dips steeply to vertically; layered rocks underlying Jabal Silli strike northeast. \r\n\r\nLayered metamorphic rocks in the Jabal Dalfa quadrangle are mostly in the greenschist facies. \r\n\r\nProjection of data from other quadrangles suggests that the oldest gneiss is about 780 Ma old and the Arfan formation, Umm Shat, and Jabal Dalfa layered rocks are about 775 to 745 Ma old. The gneiss of Shaib Hadhaq is probably about 720 Ma old, the gabbro is 640 to 625 Ma old, and the granite is about 600 Ma old. \r\n\r\nThe airborne magnetometer survey suggests that considerable additional gabbro underlies the west part of the quadrangle. Concealed serpentinite bodies, particularly in the Nabitah fault zone, are also suggested. Elongate anomalies and linear gradients indicate that the northeast part of the quadrangle is probably part of the Najd fault zone. \r\n\r\nA number of gold-bearing quartz veins in the quadrangle were mined in ancient times, and on, at Jabal Umm Matirah has been drilled and found to be uneconomic. A nickel-copper prospect has proved uneconomic. geochemical survey for additional deposits of metals was completed in 1982.","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/ofr83333","usgsCitation":"Greene, R.C., 1983, Reconnaissance geology of the Jabal Dalfa Quadrangle, sheet 21/43 C, Kingdom of Saudi Arabia: U.S. Geological Survey Open-File Report 83-333, 68 p. ill., maps ;28 cm., https://doi.org/10.3133/ofr83333.","productDescription":"68 p. ill., maps ;28 cm.","costCenters":[],"links":[{"id":142858,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1983/0333/report-thumb.jpg"},{"id":36862,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1983/0333/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":36863,"rank":401,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1983/0333/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":36864,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1983/0333/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a55e4b07f02db62d101","contributors":{"authors":[{"text":"Greene, Robert C.","contributorId":36108,"corporation":false,"usgs":true,"family":"Greene","given":"Robert","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":159318,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":8797,"text":"ofr839 - 1983 - The mineral resource potential of the Wadi Habawnah and Najran quadrangles, sheets 17/44A and 17/44C, Kingdom of Saudi Arabia","interactions":[{"subject":{"id":14525,"text":"ofr67137 - 1967 - Palynological investigations in the Pennsylvanian of Kentucky - III","indexId":"ofr67137","publicationYear":"1967","noYear":false,"title":"Palynological investigations in the Pennsylvanian of Kentucky - III"},"predicate":"SUPERSEDED_BY","object":{"id":8797,"text":"ofr839 - 1983 - The mineral resource potential of the Wadi Habawnah and Najran quadrangles, sheets 17/44A and 17/44C, Kingdom of Saudi Arabia","indexId":"ofr839","publicationYear":"1983","noYear":false,"title":"The mineral resource potential of the Wadi Habawnah and Najran quadrangles, sheets 17/44A and 17/44C, Kingdom of Saudi Arabia"},"id":1}],"lastModifiedDate":"2012-02-02T00:06:19","indexId":"ofr839","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1983","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":"83-9","title":"The mineral resource potential of the Wadi Habawnah and Najran quadrangles, sheets 17/44A and 17/44C, Kingdom of Saudi Arabia","docAbstract":"The metallic resource potential of the Wadi Habawnah and Najran quadrangles in the southern Precambrian Arabian Shield has been determined primarily by reconnaissance rock geochemistry, limited wadi-sediment and colluvium geochemistry, and gossanous and ferruginous outcrop geochemistry. These surveys were guided by geological information acquired during previous reconnaissance mapping. \r\n\r\nLocally anomalous areas in alkalic and calc-alkalic granitic terrane are possible sources of niobium-zirconiumthorium-fluorite, tin-tungsten, and copper-molybdenum, although the potential of these areas does not appear to be outstanding. The reconnaissance geochemistry of the layered volcanic terrane and the geochemistry of gossanous and ferruginous outcrops indicate that the potential for stratiform base metal sulfide deposits is low.","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/ofr839","usgsCitation":"Fenton, M.D., 1983, The mineral resource potential of the Wadi Habawnah and Najran quadrangles, sheets 17/44A and 17/44C, Kingdom of Saudi Arabia: U.S. Geological Survey Open-File Report 83-9, 42 p. ill., maps ;28 cm., https://doi.org/10.3133/ofr839.","productDescription":"42 p. ill., maps ;28 cm.","costCenters":[],"links":[{"id":142880,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1983/0009/report-thumb.jpg"},{"id":36382,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1983/0009/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":36383,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1983/0009/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b32e4b07f02db6b494c","contributors":{"authors":[{"text":"Fenton, Michael D. mfenton@usgs.gov","contributorId":2897,"corporation":false,"usgs":true,"family":"Fenton","given":"Michael","email":"mfenton@usgs.gov","middleInitial":"D.","affiliations":[{"id":432,"text":"National Minerals Information Center","active":true,"usgs":true}],"preferred":true,"id":158348,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":60934,"text":"mf1353C - 1983 - Mineral resource potential map of the Stansbury Roadless Area, Tooele County, Utah","interactions":[],"lastModifiedDate":"2025-05-01T13:10:05.706852","indexId":"mf1353C","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1983","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":"1353","chapter":"C","title":"Mineral resource potential map of the Stansbury Roadless Area, Tooele County, Utah","docAbstract":"<p>The U.S. Bureau of Mines and the U.S. Geological Survey have conducted a survey to determine the mineral resource potential of the eastern part (D4757) of the Stansbury Roadless Area, Tooele County, Utah. The results of this survey indicate that a low to moderate potential for copper, lead, and silver mineralization exists in part of area D4757. The balance of area D4757 is considered to have a low potential for metallic mineralization. The oil and gas potential is not known and cannot be assessed without a program of geophysical exploration and exploratory drilling. Limestone and dolomite are exposed over a large part of the roadless area, forming a major industrial mineral resource, but an extensive sampling and testing program is needed to determine the degree of purity of the rocks and, hence, the value of the resource. There are no known geothermal resources within the study area.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/mf1353C","usgsCitation":"Sorensen, M.L., and Kness, R., 1983, Mineral resource potential map of the Stansbury Roadless Area, Tooele County, Utah: U.S. Geological Survey Miscellaneous Field Studies Map 1353, Report: 7 p.; 1 Plate: 27.70 x 29.85 inches, https://doi.org/10.3133/mf1353C.","productDescription":"Report: 7 p.; 1 Plate: 27.70 x 29.85 inches","costCenters":[],"links":[{"id":364192,"rank":2,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/1353-C/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":179857,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/mf/1353-C/report-thumb.jpg"},{"id":485146,"rank":3,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/mf/1353-C/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":485203,"rank":4,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_7015.htm","linkFileType":{"id":5,"text":"html"}}],"scale":"62500","country":"United States","state":"Utah","county":"Tooele County","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -112.75,40.333333333333336 ], [ -112.75,40.583333333333336 ], [ -112.5,40.583333333333336 ], [ -112.5,40.333333333333336 ], [ -112.75,40.333333333333336 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b0be4b07f02db69d637","contributors":{"authors":[{"text":"Sorensen, M. L.","contributorId":79106,"corporation":false,"usgs":true,"family":"Sorensen","given":"M.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":264645,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kness, R. F.","contributorId":53004,"corporation":false,"usgs":true,"family":"Kness","given":"R. F.","affiliations":[],"preferred":false,"id":264644,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":60819,"text":"mf1583 - 1983 - Geologic, aeromagnetic and mineral resource potential maps of the Whisker Lake Wilderness, Florence County, Wisconsin","interactions":[],"lastModifiedDate":"2016-08-23T09:20:09","indexId":"mf1583","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1983","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":"1583","title":"Geologic, aeromagnetic and mineral resource potential maps of the Whisker Lake Wilderness, Florence County, Wisconsin","docAbstract":"<p><span>The Wilderness Act (Public Law 88-577, September 3, 1964) and related acts require the U.S. Geological Survey and the U.S. Bureau of Mines to survey certain areas on Federal lands to determine their mineral resource potential. Results must be made available to the public and be submitted to the President and the Congress. This report presents the results of a mineral resource survey of the&nbsp;Whisker Lake Wilderness in the Nicolet National Forest,&nbsp;Florence County, Wisconsin. The wilderness&nbsp;</span>was established by Public Law 95-494, October 21, 1978.</p>\n<p>The mineral&nbsp;resource potential of the&nbsp;Whisker Lake Wilderness in the&nbsp;Nicolet National Forest,&nbsp;Florence County, northeastern Wisconsin, was evaluated in 1982. The bedrock consists of recrystallized and deformed volcanic and sedimentary rocks of Early Proterozoic age. Sand and gravel are the only identified resources in the&nbsp;Whisker Lake Wilderness. However, the area is somewhat isolated from current markets and both commodities are abundant regionally. The wilderness also has low potential for peat in swampy lowlands. The southwestern part of the wilderness has a low to moderate mineral resource potential for stratabound massive-sulfide (copper-zinc-lead) deposits.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/mf1583","usgsCitation":"Schulz, K.J., 1983, Geologic, aeromagnetic and mineral resource potential maps of the Whisker Lake Wilderness, Florence County, Wisconsin: U.S. Geological Survey Miscellaneous Field Studies Map 1583, 29.23 x 24.65 inches, https://doi.org/10.3133/mf1583.","productDescription":"29.23 x 24.65 inches","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":182471,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/mf1583.PNG"},{"id":327472,"rank":1,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/1583/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Wisconsin","county":"Florence County","otherGeospatial":"Nicolet National Forest, Whisker Lake Wilderness","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -88.5,45.9 ], [ -88.5,46 ], [ -88.41666666666667,46 ], [ -88.41666666666667,45.9 ], [ -88.5,45.9 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae0e4b07f02db6880a0","contributors":{"authors":[{"text":"Schulz, Klaus J. 0000-0003-2967-4765 kschulz@usgs.gov","orcid":"https://orcid.org/0000-0003-2967-4765","contributorId":2438,"corporation":false,"usgs":true,"family":"Schulz","given":"Klaus","email":"kschulz@usgs.gov","middleInitial":"J.","affiliations":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":264441,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":60818,"text":"mf1592 - 1983 - Geologic and aeromagnetic maps and mineral resource potential survey of the Blackjack Springs Wilderness, Vilas County, Wisconsin","interactions":[],"lastModifiedDate":"2016-08-23T09:21:08","indexId":"mf1592","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1983","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":"1592","title":"Geologic and aeromagnetic maps and mineral resource potential survey of the Blackjack Springs Wilderness, Vilas County, Wisconsin","docAbstract":"<p>The mineral resource potential of the Blackjack Springs Wilderness in the Nicolet National Forest, Vilas County, Wisc., was evaluated in 1982. &nbsp;No bedrock exposures are known in or near the wilderness. &nbsp;Geophysical data and regional geologic relations suggest that the area consists mostly of recrystallized and deformed mafic volcanic rocks and associated mafic intrusives of Early Proterozoic age. &nbsp;The only identified mineral resources in the Blackjack Springs Wilderness are sand and gravel, but these commodities are abundant regionally. &nbsp;While the occurrence of stratabound massive-sulfide (cooper-zinc-lead) and (or) magmatic sulfide (copper and (or) nickel)-type deposits are possible in the wilderness, their occurrence is not probable.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/mf1592","usgsCitation":"Schulz, K.J., 1983, Geologic and aeromagnetic maps and mineral resource potential survey of the Blackjack Springs Wilderness, Vilas County, Wisconsin: U.S. Geological Survey Miscellaneous Field Studies Map 1592, 25.46 x 21.65 inches, https://doi.org/10.3133/mf1592.","productDescription":"25.46 x 21.65 inches","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":182470,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/mf1592.PNG"},{"id":327473,"rank":1,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/1592/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}}],"scale":"0","country":"United States","state":"Wisconsin","county":"Vilas County","otherGeospatial":"Blackjack Springs Wilderness","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -89.11749999999999,45.916666666666664 ], [ -89.11749999999999,46 ], [ -89.03416666666666,46 ], [ -89.03416666666666,45.916666666666664 ], [ -89.11749999999999,45.916666666666664 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b1ae4b07f02db6a8325","contributors":{"authors":[{"text":"Schulz, Klaus J. 0000-0003-2967-4765 kschulz@usgs.gov","orcid":"https://orcid.org/0000-0003-2967-4765","contributorId":2438,"corporation":false,"usgs":true,"family":"Schulz","given":"Klaus","email":"kschulz@usgs.gov","middleInitial":"J.","affiliations":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":264440,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":60706,"text":"mf1523B - 1983 - Mineral resource potential map of the Chama River Canyon Wilderness and contiguous roadless area, Rio Arriba County, New Mexico","interactions":[],"lastModifiedDate":"2015-10-22T14:07:49","indexId":"mf1523B","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1983","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":"1523","chapter":"B","title":"Mineral resource potential map of the Chama River Canyon Wilderness and contiguous roadless area, Rio Arriba County, New Mexico","docAbstract":"<p>The Chama River Canyon Wilderness and Roadless Area have a moderate to high potential for the presence&nbsp;of small deposits of copper with associated uranium and silver. These deposits, as yet undetected, would occur in&nbsp;the Permian Cutler Formation and in the lower part of the Triassic Chinle Formation, rock units that are, for the&nbsp;most part, present only in the subsurface. The presence of these deposits is inferred because such deposits occur&nbsp;in rocks of equivalent age in adjacent areas. Gypsum, of probable minable quality and quantity, occurs throughout&nbsp;the area. Oil and gas are possibly present in Pennsylvanian strata in the subsurface, although no drilling in the&nbsp;study area has tested this hypothesis. Other commodities, including noncopper-related uranium, kaolinite,&nbsp;chromium, vanadium, manganese, and bitumen, although present locally in anomalous concentrations, do not&nbsp;appear to constitute potential resources for these commodities.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/mf1523B","usgsCitation":"Ridgley, J.L., and Light, T., 1983, Mineral resource potential map of the Chama River Canyon Wilderness and contiguous roadless area, Rio Arriba County, New Mexico: U.S. Geological Survey Miscellaneous Field Studies Map 1523, Report: 8 p.; Plate: 37.57 x 43.89 inches, https://doi.org/10.3133/mf1523B.","productDescription":"Report: 8 p.; Plate: 37.57 x 43.89 inches","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":310533,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/mf/1523-B/report.pdf","text":"Report","linkFileType":{"id":1,"text":"pdf"}},{"id":310534,"rank":2,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/1523-B/plate-1.pdf","text":"Plate","linkFileType":{"id":1,"text":"pdf"}},{"id":180585,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/mf1523B.jpg"}],"country":"United States","state":"New Mexico","county":"Rio Arriba County","otherGeospatial":"Chama River Canyon Wilderness and Contiguous Roadless Area","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -106.75,36.166666666666664 ], [ -106.75,36.583333333333336 ], [ -106.5,36.583333333333336 ], [ -106.5,36.166666666666664 ], [ -106.75,36.166666666666664 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4afee4b07f02db69754d","contributors":{"authors":[{"text":"Ridgley, Jennie L. ridgley@usgs.gov","contributorId":1248,"corporation":false,"usgs":true,"family":"Ridgley","given":"Jennie","email":"ridgley@usgs.gov","middleInitial":"L.","affiliations":[],"preferred":true,"id":264257,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Light, Thomas D.","contributorId":46098,"corporation":false,"usgs":true,"family":"Light","given":"Thomas D.","affiliations":[],"preferred":false,"id":264258,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":60230,"text":"mf1563A - 1983 - Mineral resource potential map of the Raywood Flat Roadless Areas, Riverside and San Bernardino counties, California","interactions":[],"lastModifiedDate":"2015-10-22T14:06:46","indexId":"mf1563A","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1983","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":"1563","chapter":"A","title":"Mineral resource potential map of the Raywood Flat Roadless Areas, Riverside and San Bernardino counties, California","docAbstract":"<p>Geologic, geochemical, and geophysical studies within the Raywood \"Flat Roadless Areas, together with an investigation of mines and prospects within the further planning area, resulted in (1) identification of nonmetallic mineral resources at a marble mine in the further planning area and (2) recognition of a small area in the recommended wilderness that has moderate potential for base-metal resources. Except for these two areas of identified and suspected resources, we did not observe indications of resource potential elsewhere in the Raywood Flat Roadless Areas.</p>\n<p>The area having nonmetallic mineral resources is in the vicinity of the Mill Creek mine near the northeastern boundary of the further planning area (B5-187); there, we identified marginal reserves of marble suitable for the production of lime and construction stone. The reserves are marginal because of their remote location and poor accessibility. Geologic mapping did not reveal any additional marble occurrences within the study area.</p>\n<p>The area having moderate potential for base-metal resources forms a small zone in the eastern part of the recommended wilderness (A5-187). Within this zone, evidence provided by stream-sediment geochemistry suggests that crystalline bedrocks in several drainages contain concentrations of metallic elements. Because the terrain is inaccessible and covered with dense brush, most of the bedrock in the specific drainages containing the geochemical anomalies could not be examined. Thus, although we infer that mineral occurrences exist in the drainage basins, we have little data on which to base an estimate of their extent and quality. Locally, the crystalline rocks probably contain hydrothermal veins or disseminated occurrences where lead, copper, molybdenum, tin, cobalt, bismuth, and arsenic have been concentrated. However, the geochemical anomalies for these metals are small, and the stream drainages also are relatively small. Therefore, the inferred occurrences of metallic minerals probably are small scale, scattered, and low grade. There is only low probability that the inferred mineral occurrences are large scale.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/mf1563A","usgsCitation":"Matti, J.C., Cox, B.F., and Iverson, S.R., 1983, Mineral resource potential map of the Raywood Flat Roadless Areas, Riverside and San Bernardino counties, California: U.S. Geological Survey Miscellaneous Field Studies Map 1563, Report: 11 p.; Plate: 39.43 x 34.88 inches, https://doi.org/10.3133/mf1563A.","productDescription":"Report: 11 p.; Plate: 39.43 x 34.88 inches","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":310531,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/mf/1563-A/report.pdf","text":"Report","linkFileType":{"id":1,"text":"pdf"}},{"id":310532,"rank":2,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/1563-A/plate-1.pdf","text":"Plate","linkFileType":{"id":1,"text":"pdf"}},{"id":183122,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/mf1563A.jpg"}],"country":"United States","state":"California","county":"Riverside County, San Bernardino County","otherGeospatial":"Raywood Flat Roadless Area","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -117,33.916666666666664 ], [ -117,34.166666666666664 ], [ -116.58333333333333,34.166666666666664 ], [ -116.58333333333333,33.916666666666664 ], [ -117,33.916666666666664 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b28e4b07f02db6b15b3","contributors":{"authors":[{"text":"Matti, Jonathan C. jmatti@usgs.gov","contributorId":3666,"corporation":false,"usgs":true,"family":"Matti","given":"Jonathan","email":"jmatti@usgs.gov","middleInitial":"C.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":false,"id":263353,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cox, Brett F. bcox@usgs.gov","contributorId":5793,"corporation":false,"usgs":true,"family":"Cox","given":"Brett","email":"bcox@usgs.gov","middleInitial":"F.","affiliations":[],"preferred":true,"id":263354,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Iverson, Stephen R.","contributorId":73335,"corporation":false,"usgs":false,"family":"Iverson","given":"Stephen","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":263352,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":59808,"text":"mf1540B - 1983 - Aeromagnetic map and interpretation of geophysical data from the Condrey Mountain Roadless Area, Siskiyou County, California","interactions":[],"lastModifiedDate":"2016-08-22T14:06:01","indexId":"mf1540B","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1983","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":"1540","chapter":"B","title":"Aeromagnetic map and interpretation of geophysical data from the Condrey Mountain Roadless Area, Siskiyou County, California","docAbstract":"<p>The Condrey Mountain Roadless Area lies within the Klamath Mountains geologic province, a province composed of four eastward-dipping imbricate thrust slices or belts consisting predominantly of marine arc-related volcanic and sedimentary rocks, but also including significant amounts of ultramafic and other ophiolitic rocks (Irwin, 1981). From west to east the four Klamath Mountains thrust slices are called the western Jurassic belt, the western Paleozoic and Triassic belt, the central metamorphic belt, and the eastern Klamath belt. The Condrey Mountain Road less Area is located within a structural window in the western Paleozoic and Triassic belt, a window in which the structural dome comprised of the Condrey Mountain Schist is exposed (Coleman and others, 1983). North, east and south of the roadless area, the Condrey Mountain Schist is separated from the overlying western Paleozoic and Triassic belt by a low-angle regional thrust, whereas to the west the two units are in high-angle fault contact (Coleman and others, 1983).</p>\n<p>The Condrey Mountain schist consists mainly of sedimentary and volcanic rocks metamorphosed to greenschist facies. Metasedimentary rocks are exposed over most of the eastern and central parts of the structural window. Metavolcanic rocks occupy the western part of the window but also occur in small exposures within the metasedimentary rocks and along the eastern and southern margins of the window. Tabular bodies of metaserpentinite, the largest of which crops out near White Mountain, are contained within the metasedimentary rocks. Densities of hand samples from 11 sites scattered throughout the Condrey Mountain window average 2.66&plusmn;0.05 g/cm<sup>3</sup>. The four samples of metavolcanic rocks yielded a higher average density than the seven samples of metasedimentary rocks (2.71&plusmn;0.04 g/cm<sup>3</sup> versus 2.63&plusmn;0.03 g/cm<sup>3</sup>).</p>\n<p>Along the western edge of the Condrey Mountain Road less Area, numerous narrow north-trending zones of mineralized schist extend from near Copper Butte on the south, northward to Elliot Creek (Coleman and others, 1983). These zones contain abundant pyrite mineralization associated with pyrrhotite, chalcopyrite, qalena, and sphalerite. The Blue Ledge mine area, 2 mi north-northeast of Copper Butte, is located in a zone of mineralized schist.</p>\n<p>The western Paleozoic and Triassic belt that nearly surrounds the Condrey Mountain Schist is a melange of sedimentary, volcanic, and ultramafic rocks metamorphosed to amphibolite facies (Coleman and others, 1983). Only two samples of the metamorphic melange were collected near the Condrcy Mountain Road less Area, but extensive sampling of this unit southwest of the roadless area yielded an average sample density of 2.86&plusmn;0.15 g/cm<sup>3</sup> (112 samples) (Jachens and others, 1983).</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/mf1540B","usgsCitation":"Jachens, R., and Elder, W., 1983, Aeromagnetic map and interpretation of geophysical data from the Condrey Mountain Roadless Area, Siskiyou County, California: U.S. Geological Survey Miscellaneous Field Studies Map 1540, Plate: 47.54 x 29.96 inches, https://doi.org/10.3133/mf1540B.","productDescription":"Plate: 47.54 x 29.96 inches","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":183643,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/mf1540B.JPG"},{"id":327288,"rank":1,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/1540-B/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}}],"scale":"0","country":"United States","state":"California","county":"Siskiyou County","otherGeospatial":"Condrey Mountain Roadless Area","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -123.25,41.833333333333336 ], [ -123.25,42 ], [ -122.75,42 ], [ -122.75,41.833333333333336 ], [ -123.25,41.833333333333336 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b00e4b07f02db69835b","contributors":{"authors":[{"text":"Jachens, R.C.","contributorId":55433,"corporation":false,"usgs":true,"family":"Jachens","given":"R.C.","email":"","affiliations":[],"preferred":false,"id":262631,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Elder, W.P.","contributorId":65467,"corporation":false,"usgs":true,"family":"Elder","given":"W.P.","email":"","affiliations":[],"preferred":false,"id":262632,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":59378,"text":"mf1361B - 1983 - Map and interpretation of geochemical anomalies in the White Mountains, Blanco Mountain, Birch Creek, and Black Canyon Roadless Areas, White Mountains, California and Nevada","interactions":[],"lastModifiedDate":"2018-09-20T15:26:25","indexId":"mf1361B","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1983","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":"1361","chapter":"B","title":"Map and interpretation of geochemical anomalies in the White Mountains, Blanco Mountain, Birch Creek, and Black Canyon Roadless Areas, White Mountains, California and Nevada","docAbstract":"<p>The geochemical results show the most anomalous part of the study area to be the White Mountain Fault zone along the northwestern range front.&nbsp; Silver, lead, and zinc mineralization in calcareous rocks, porphyry copper in dikes, gold-arsenic quartz vein deposits, tungsten and molybdenum tactite mineralization, and argillic alteration zones are indicated.&nbsp; Titanium and molybdenum were detected in Jeffery Mine Canyon, an area known for rutile deposits.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/mf1361B","usgsCitation":"Diggles, M.F., 1983, Map and interpretation of geochemical anomalies in the White Mountains, Blanco Mountain, Birch Creek, and Black Canyon Roadless Areas, White Mountains, California and Nevada: U.S. Geological Survey Miscellaneous Field Studies Map 1361, 40.55 x 56.99 inches, https://doi.org/10.3133/mf1361B.","productDescription":"40.55 x 56.99 inches","costCenters":[],"links":[{"id":357555,"rank":2,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/1361-B/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":184275,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/mf/1361-B/report-thumb.jpg"}],"scale":"0","country":"United States","state":"California, Nevada","otherGeospatial":"White Mountains","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -118.41666666666667,37.25 ], [ -118.41666666666667,37.916666666666664 ], [ -118,37.916666666666664 ], [ -118,37.25 ], [ -118.41666666666667,37.25 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a8fe4b07f02db655429","contributors":{"authors":[{"text":"Diggles, Michael F. 0000-0002-9946-0247 mdiggles@usgs.gov","orcid":"https://orcid.org/0000-0002-9946-0247","contributorId":810,"corporation":false,"usgs":true,"family":"Diggles","given":"Michael","email":"mdiggles@usgs.gov","middleInitial":"F.","affiliations":[{"id":5066,"text":"Office of the Director USGS","active":true,"usgs":true},{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true},{"id":5053,"text":"IPDS Training","active":true,"usgs":true},{"id":501,"text":"Office of Science Quality and Integrity","active":true,"usgs":true}],"preferred":true,"id":261888,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":59038,"text":"mf1542C - 1983 - Mineral resource potential map of the Spanish Peaks Wilderness Study Area, Huerfano and Las Animas counties, Colorado","interactions":[],"lastModifiedDate":"2015-10-22T13:51:38","indexId":"mf1542C","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1983","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":"1542","chapter":"C","title":"Mineral resource potential map of the Spanish Peaks Wilderness Study Area, Huerfano and Las Animas counties, Colorado","docAbstract":"<p>A geologic and geochemical investigation and a survey of mines and prospects have been conducted to evaluate the mineral resource potential of the Spanish Peaks Wilderness Study Area, Huerfano and Las Animas Counties, in south-central Colorado. The&middot;study area is underlain by sedimentary rocks of Paleozoic to Tertiary age (Johnson, 1969). Stocks and dikes were emplaced between 20 and 25 m.y. ago (Smith, 1979) forming East and West Spanish Peaks and the White Peaks.</p>\n<p>Most of the study area lacks significant geochemical anomalies and has a low mineral potential. Anomalous concentrations of gold, silver, copper, lead, and zinc in the rocks and drainage basins in the vicinity of the old mines and prospects on West Spanish Peak indicate a moderate potential for small mineralized veins in this area. Ore-bearing veinlets have been worked in the past, primarily for silver and lead; however, the sparsity, small size, and low grade of the veins diminish their significance.</p>\n<p>The depth of several thousand feet at which coal may underlie the surface rocks of the study area makes it a resource with little likelihood of development. The potential for oil and gas appears low because of the apparent lack of structural traps and the intense igneous activity in the area.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/mf1542C","usgsCitation":"Budding, K.E., and Kluender, S.E., 1983, Mineral resource potential map of the Spanish Peaks Wilderness Study Area, Huerfano and Las Animas counties, Colorado: U.S. Geological Survey Miscellaneous Field Studies Map 1542, Report: 5 p.; Plate: 35.17 x 22.37 inches, https://doi.org/10.3133/mf1542C.","productDescription":"Report: 5 p.; Plate: 35.17 x 22.37 inches","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":183243,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/mf1542C.jpg"},{"id":310525,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/mf/1542-C/report.pdf","text":"Report","linkFileType":{"id":1,"text":"pdf"}},{"id":310526,"rank":2,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/1542-C/plate-1.pdf","text":"Plate","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Colorado","county":"Huerfano County, Las Animas County","otherGeospatial":"Spanish Peaks Wilderness Study Area","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -105.11749999999999,37.333333333333336 ], [ -105.11749999999999,37.416666666666664 ], [ -104.86749999999999,37.416666666666664 ], [ -104.86749999999999,37.333333333333336 ], [ -105.11749999999999,37.333333333333336 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49fae4b07f02db5f3f3a","contributors":{"authors":[{"text":"Budding, Karin E.","contributorId":32164,"corporation":false,"usgs":true,"family":"Budding","given":"Karin","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":261308,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kluender, Steven E.","contributorId":49842,"corporation":false,"usgs":true,"family":"Kluender","given":"Steven","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":261307,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":58635,"text":"mf1495A - 1983 - Mineral resource potential map of the Selway-Bitterroot Wilderness, Idaho County, Idaho, and Missoula and Ravalli counties, Montana","interactions":[],"lastModifiedDate":"2015-10-22T13:28:14","indexId":"mf1495A","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1983","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":"1495","chapter":"A","title":"Mineral resource potential map of the Selway-Bitterroot Wilderness, Idaho County, Idaho, and Missoula and Ravalli counties, Montana","docAbstract":"<p>Mineral resource studies by the U.S. Bureau of Mines and the U.S, Geological Survey indicate that five areas within the Selway-Bitterroot Wilderness have mineral resource potential. Regional studies suggest that three granitic plutons within the wildemess, the Running Creek pluton on the southwestern border of the wildemess, the Painted Rocks pluton on the southern border of the wildemess, and the Whistling Pig pluton in the west-central portion of the wildemess, have low potential for molybdenite deposits, but detailed surface investigations failed to recognize a deposit. Placer deposits in the Elk Summit area on the north side of the wildemess contain subeconomic resources of niobium- (columbium-) bearing ilmenite. A vein on the northeast side of the wildemess at t~e Cliff mine at Saint Joseph Peak contains subeconomic silver-copper-lead resources. The wilderness has no known potential for oil and gas, coal, geothermal resources, or other energy-related commodities.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/mf1495A","usgsCitation":"Toth, M.I., Coxe, B.W., Zilka, N.T., and Hamilton, M.M., 1983, Mineral resource potential map of the Selway-Bitterroot Wilderness, Idaho County, Idaho, and Missoula and Ravalli counties, Montana: U.S. Geological Survey Miscellaneous Field Studies Map 1495, Report: 6 p.; Plate: 38.98 x 54.71 inches, https://doi.org/10.3133/mf1495A.","productDescription":"Report: 6 p.; Plate: 38.98 x 54.71 inches","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":184566,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/mf1495A.jpg"},{"id":310515,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/mf/1495-A/report.pdf","text":"Report","linkFileType":{"id":1,"text":"pdf"}},{"id":310516,"rank":2,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/1495-A/plate-1.pdf","text":"Plate","linkFileType":{"id":1,"text":"pdf"}}],"scale":"25000","country":"United States","state":"Idaho, Montana","county":"Idaho County, Missoula County, Ravalli County","otherGeospatial":"Selway-Bitterroot Wilderness Area","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -115.5,45.666666666666664 ], [ -115.5,46.75 ], [ -114,46.75 ], [ -114,45.666666666666664 ], [ -115.5,45.666666666666664 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49e9e4b07f02db5e93ad","contributors":{"authors":[{"text":"Toth, Margo I.","contributorId":18365,"corporation":false,"usgs":true,"family":"Toth","given":"Margo","email":"","middleInitial":"I.","affiliations":[],"preferred":false,"id":260172,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Coxe, Berton W.","contributorId":44918,"corporation":false,"usgs":true,"family":"Coxe","given":"Berton","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":260171,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Zilka, Nicholas T.","contributorId":11625,"corporation":false,"usgs":true,"family":"Zilka","given":"Nicholas","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":260173,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hamilton, Michael M.","contributorId":65606,"corporation":false,"usgs":true,"family":"Hamilton","given":"Michael","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":260170,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":58576,"text":"mf1361C - 1983 - Mineral resource potential map of the Blanco Mountain and Black Canyon Roadless Areas, Inyo and Mono Counties, California","interactions":[],"lastModifiedDate":"2022-07-21T20:27:20.070913","indexId":"mf1361C","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1983","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":"1361","chapter":"C","title":"Mineral resource potential map of the Blanco Mountain and Black Canyon Roadless Areas, Inyo and Mono Counties, California","docAbstract":"<p>On the basis of geologic, geochemical, and geophysical investigations and a survey of mines and prospects, the mineral resource potential for gold, silver, lead, zinc, tungsten, and barite of the Blanco Mountain and Black Canyon Roadless Areas is judged to be low to moderate, except for one local area that has high potential for gold and tungsten resources.</p>\n<p>A geochemical survey detected moderately anomalous amounts of lead, copper, and zinc and less anomalous concentrations of tungsten, gold, and silver. Elements in anomalous samples were grouped as suites known to form in various ore deposits. Four element suites that may be indicative of mineralization are recognized in the White Mountains: (1) lead, zinc, and silver in carbonate rocks; (2) copper, barite, and lead in veins and replacement bodies; (3) tungsten, molybdenum, and bismuth in skarns; and (4) gold and arsenic in mineralized quartz veins. The assessment of the areas of resource potential was made in part by the application of ore deposit models to the geochemical results.</p>\n<p>A mineral deposit survey by the U.S. Bureau of Mines indicates that there are no properties with identified mineral resources in the Blanco Mountain Roadless Area. There is one active placer claim. In the Black Canyon Roadless Area, two properties have 40,000 tons of indicated and inferred low-grade gold, silver, or lead-bearing rock. Five properties near this roadless area have 150,000 tons of indicated and inferred low-grade gold, silver, lead, zinc, or tungsten-bearing rock. About 90 percent of this tonnage is estimated to occur at the Mirage-Mariposa and the Hope mines.</p>\n<p>The roadless areas have no known resource potential for geothermal energy, coal, oil, or gas.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/mf1361C","usgsCitation":"Diggles, M.F., Blakely, R.J., Rains, R.L., and Schmauch, S.W., 1983, Mineral resource potential map of the Blanco Mountain and Black Canyon Roadless Areas, Inyo and Mono Counties, California: U.S. Geological Survey Miscellaneous Field Studies Map 1361, Report: 13 p.; Plate: 40.00 x 32.00 inches, https://doi.org/10.3133/mf1361C.","productDescription":"Report: 13 p.; Plate: 40.00 x 32.00 inches","numberOfPages":"14","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":105782,"rank":700,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_7037.htm","linkFileType":{"id":5,"text":"html"},"description":"7037"},{"id":88418,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/1983/1361c/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":88419,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/mf/1983/1361c/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":183980,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/mf/1983/1361c/report-thumb.jpg"}],"scale":"62500","country":"United States","state":"California","county":"Inyo County, Mono County","otherGeospatial":"Blanco Mountain and Black Canyon Roadless Areas","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -118.4333,\n              37.2039\n            ],\n            [\n              -118,\n              37.2039\n            ],\n            [\n              -118,\n              37.9656\n            ],\n            [\n              -118.4333,\n              37.9656\n            ],\n            [\n              -118.4333,\n              37.2039\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4afde4b07f02db696b3a","contributors":{"authors":[{"text":"Diggles, Michael F. 0000-0002-9946-0247 mdiggles@usgs.gov","orcid":"https://orcid.org/0000-0002-9946-0247","contributorId":810,"corporation":false,"usgs":true,"family":"Diggles","given":"Michael","email":"mdiggles@usgs.gov","middleInitial":"F.","affiliations":[{"id":5053,"text":"IPDS Training","active":true,"usgs":true},{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true},{"id":501,"text":"Office of Science Quality and Integrity","active":true,"usgs":true},{"id":5066,"text":"Office of the Director USGS","active":true,"usgs":true}],"preferred":true,"id":643765,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Blakely, Richard J. 0000-0003-1701-5236 blakely@usgs.gov","orcid":"https://orcid.org/0000-0003-1701-5236","contributorId":1540,"corporation":false,"usgs":true,"family":"Blakely","given":"Richard","email":"blakely@usgs.gov","middleInitial":"J.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true},{"id":662,"text":"Western Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":259868,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Rains, Richard L.","contributorId":32179,"corporation":false,"usgs":true,"family":"Rains","given":"Richard","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":643766,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Schmauch, Steven W.","contributorId":30252,"corporation":false,"usgs":true,"family":"Schmauch","given":"Steven","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":643767,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":58574,"text":"mf1317C - 1983 - Mineral resource potential map of the Benton Range Roadless Area, Mono County, California","interactions":[],"lastModifiedDate":"2018-01-17T13:19:38","indexId":"mf1317C","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1983","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":"1317","chapter":"C","title":"Mineral resource potential map of the Benton Range Roadless Area, Mono County, California","docAbstract":"<p>Tungsten-bearing rocks in the Benton Range Roadless Area occur in tactite lenses within the Paleozoic metasedimentary units that surround and are intruded by Triassic granodiorite of the Benton Range. High anomalous tungsten values were found in the southern part of the study area. Quartz-vein deposits with copper, lead, zinc, and silver may occur within the Jurassic granitic rock in the northwestern part of the area. </p><p>Stream-sediment and panned-concentrate samples from the northwestern part of the roadless area, reveal anomalous values in a number of elements. Some of these elements are indicative of mineral suites that form by hydrothermal alteration and are potential metallic-ore producers. Metals having anomalous values are antimony, copper, lead, molybdenum, tin, and zinc; their presence suggests the potential for deposits of the lead-zinc-silver or copper-molybdenum type. </p><p>Molybdenum and lead were identified by geochemical sampling as having low to moderate potential in the roadless area. </p><p>An estimated 190,000 tons (172,000 t) of subeconomic gold and silver resources are inside the roadless area at the Gold Crown, Gold Webb, and Gold Wedge mines; another 60,000 tons (54,000 t) of subeconomic gold and silver resources are just outside the area at the Tower, Gold Webb, and Gold Wedge mines (table 1). Most of the lode gold and silver deposits are in quartz veins and shear zones. Minor amounts of copper, lead, and zinc occur in some gold deposits. About 2,240 oz (70 kg) of gold, 8,450 oz (260 kg) of silver, and 4,600 lb of lead (2,090 kg) have been produced from the roadless area. In addition, 7,257 oz (226 kg) of gold and 350 oz (11 kg) silver were produced at the Tower mine, near the area. </p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/mf1317C","usgsCitation":"Donahoe, J.L., McKee, E.D., Rains, R.L., Barnes, D.J., Campbell, H.W., Denton, D.K., Iverson, S.R., Jeske, R.E., and Stebbins, S.A., 1983, Mineral resource potential map of the Benton Range Roadless Area, Mono County, California: U.S. Geological Survey Miscellaneous Field Studies Map 1317, Report: 7 p.; 1 Plate: 33.60 x 25.12 inches, https://doi.org/10.3133/mf1317C.","productDescription":"Report: 7 p.; 1 Plate: 33.60 x 25.12 inches","costCenters":[],"links":[{"id":350469,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/1317-C/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":350468,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/mf/1317-C/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":181312,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/mf/1317-C/report-thumb.jpg"}],"scale":"62500","datum":"National Geodetic Vertical Datum of 1929","country":"United States","state":"California","county":"Mono County","otherGeospatial":"Benton Range Roadless Area","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -118.66666666666667,37.583333333333336 ], [ -118.66666666666667,37.833333333333336 ], [ -118.41666666666667,37.833333333333336 ], [ -118.41666666666667,37.583333333333336 ], [ -118.66666666666667,37.583333333333336 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4adfe4b07f02db687cfc","contributors":{"authors":[{"text":"Donahoe, James L.","contributorId":48554,"corporation":false,"usgs":true,"family":"Donahoe","given":"James","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":259852,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"McKee, Edwin D.","contributorId":60207,"corporation":false,"usgs":true,"family":"McKee","given":"Edwin","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":259853,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Rains, Richard L.","contributorId":32179,"corporation":false,"usgs":true,"family":"Rains","given":"Richard","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":259859,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Barnes, Donald J.","contributorId":30358,"corporation":false,"usgs":true,"family":"Barnes","given":"Donald","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":259854,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Campbell, Harry W.","contributorId":67509,"corporation":false,"usgs":true,"family":"Campbell","given":"Harry","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":259857,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Denton, David K. Jr.","contributorId":70536,"corporation":false,"usgs":true,"family":"Denton","given":"David","suffix":"Jr.","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":259851,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Iverson, Stephen R.","contributorId":73335,"corporation":false,"usgs":false,"family":"Iverson","given":"Stephen","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":259855,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Jeske, Rodney E.","contributorId":63089,"corporation":false,"usgs":true,"family":"Jeske","given":"Rodney","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":259856,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Stebbins, Scott A.","contributorId":16976,"corporation":false,"usgs":true,"family":"Stebbins","given":"Scott","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":259858,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}}
,{"id":3653,"text":"cir886 - 1983 - Analysis of the world distribution of metal-rich subsea manganese nodules","interactions":[],"lastModifiedDate":"2012-02-02T00:05:21","indexId":"cir886","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1983","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":"886","title":"Analysis of the world distribution of metal-rich subsea manganese nodules","docAbstract":"Publicly available data on the composition of subsea manganese nodules extend previous reports of differences in average metal contents from ocean to ocean and of variations related to latitude and depth. Pacific Ocean nodules have the highest average manganese, nickel, and copper contents, and Atlantic Ocean nodules have the highest average iron content. The average manganese, nickel, and copper contents generally increase toward the equator in both hemispheres, and iron content generally decreases. The variation of metal content with water depth is not linear; instead, there appears to be a threshold depth of about 2,900 to 3,000 m, above which combined nickel and copper contents are generally less than 1 percent and below which cobalt content is generally less than about 0.6 percent. \r\n\r\nThe composition of the nodules varies widely, but three rarely overlapping types that are of possible economic interest can be recognized. (1) Nodules containing more than about 1 percent combined nickel and copper only exceptionally contain more than 0.5 percent cobalt and 35 percent manganese. (2) Nodules containing more than 0.5 percent cobalt rarely contain more than 1 percent combined nickel and copper and 35 percent manganese. (3) Nodules containing more than 35 percent manganese only exceptionally contain more than 0.5 percent cobalt, although they average nearly 1.1 percent combined nickel and copper. Current economic interest in nodule mining is focused on the Clarion-Clipperton zone in the northeastern equatorial Pacific Ocean, the largest known area in which nodules average 1.8 percent or more combined nickel and copper. Several other areas in which nodules are rich in these metals are found in the Pacific and Indian Oceans and may be viewed as targets for exploration. \r\n\r\nNearly 60 chemical elements have been found in manganese nodules, many in concentrations far exceeding their crustal abundances. The amounts in which many minor elements are present vary with the amounts of principal metals present, but the three metal types described above do not include the maximum reported values for several other elements, such as titanium (8.9 percent), vanadium (0.5), zinc (9.0), and lead (0.75). It seems possible, therefore, that there may be other kinds of metal-rich types, some of which may have p6tential economic value. \r\n\r\nMany of the variations in nodule composition are in large part a function of variations in mineral composition, to which many factors contribute. Some of the regional variations can be broadly related to oceanic circulation, basin morphology, and depth, but a better understanding of ocean processes and regional oceanography and geology is needed to explain all the variations observed in the composition of manganese nodules.","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/cir886","usgsCitation":"McKelvey, V.E., Wright, N.A., and Bowen, R.W., 1983, Analysis of the world distribution of metal-rich subsea manganese nodules: U.S. Geological Survey Circular 886, iv, 55 p. :ill., maps ;27 cm., https://doi.org/10.3133/cir886.","productDescription":"iv, 55 p. :ill., maps ;27 cm.","costCenters":[],"links":[{"id":124693,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/circ/1983/0886/report-thumb.jpg"},{"id":30694,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/circ/1983/0886/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4acce4b07f02db67e778","contributors":{"authors":[{"text":"McKelvey, Vincent Ellis","contributorId":92650,"corporation":false,"usgs":true,"family":"McKelvey","given":"Vincent","email":"","middleInitial":"Ellis","affiliations":[],"preferred":false,"id":147340,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wright, Nancy A.","contributorId":28586,"corporation":false,"usgs":true,"family":"Wright","given":"Nancy","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":147339,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bowen, Roger W.","contributorId":21142,"corporation":false,"usgs":true,"family":"Bowen","given":"Roger","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":147338,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":4227,"text":"cir793 - 1983 - The Alaska Mineral Resource Assessment Program: Background information to accompany folio of geologic and mineral resource maps of the Ambler River quadrangle, Alaska","interactions":[],"lastModifiedDate":"2021-08-20T20:55:47.230667","indexId":"cir793","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1983","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":"793","title":"The Alaska Mineral Resource Assessment Program: Background information to accompany folio of geologic and mineral resource maps of the Ambler River quadrangle, Alaska","docAbstract":"The Ambler River quadrangle, consisting of 14,290 km2 (5,520 mi2) in northwest Alaska, was investigated by an interdisciplinary research team for the purpose of assessing the mineral resource potential of the quadrangle. This report provides background information for a folio of maps on the geology, reconnaissance geochemistry, aeromagnetics, Landsat imagery, and mineral resource evaluation of the quadrangle. A summary of the geologic history, radiometric dates, and fossil localities and a comprehensive bibliography are also included. The quadrangle contains jade reserves, now being mined, and potentially significant resources of copper, zinc, lead, and silver.","language":"English","publisher":"U.S. Geological Survey,","doi":"10.3133/cir793","usgsCitation":"Mayfield, C.F., Tailleur, I., Albert, N., Ellersieck, I., Grybeck, D., and Hackett, S.W., 1983, The Alaska Mineral Resource Assessment Program: Background information to accompany folio of geologic and mineral resource maps of the Ambler River quadrangle, Alaska: U.S. Geological Survey Circular 793, iv, 31 p., https://doi.org/10.3133/cir793.","productDescription":"iv, 31 p.","costCenters":[],"links":[{"id":388264,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_24047.htm"},{"id":31341,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/circ/1983/0793/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":139317,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/circ/1983/0793/report-thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Ambler River quadrangle","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -159.00,\n              66.8830\n            ],\n            [\n              -156.0,\n              66.8830\n            ],\n            [\n              -156.0,\n              68.00\n            ],\n            [\n              -159.00,\n              68.00\n            ],\n            [\n              -159.00,\n              66.8830\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad5e4b07f02db683462","contributors":{"authors":[{"text":"Mayfield, Charles F.","contributorId":13623,"corporation":false,"usgs":true,"family":"Mayfield","given":"Charles","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":148466,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Tailleur, I.L.","contributorId":59027,"corporation":false,"usgs":true,"family":"Tailleur","given":"I.L.","email":"","affiliations":[],"preferred":false,"id":148468,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Albert, N. R.","contributorId":86341,"corporation":false,"usgs":true,"family":"Albert","given":"N. R.","affiliations":[],"preferred":false,"id":148470,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ellersieck, Inyo","contributorId":34914,"corporation":false,"usgs":true,"family":"Ellersieck","given":"Inyo","affiliations":[],"preferred":false,"id":148467,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Grybeck, Donald","contributorId":8066,"corporation":false,"usgs":true,"family":"Grybeck","given":"Donald","affiliations":[],"preferred":false,"id":148465,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Hackett, S. W.","contributorId":66784,"corporation":false,"usgs":true,"family":"Hackett","given":"S.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":148469,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":7597,"text":"ofr83400 - 1983 - The Volcano Hazards Program; objectives and long-range plans","interactions":[],"lastModifiedDate":"2023-08-01T22:09:49.800907","indexId":"ofr83400","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1983","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":"83-400","title":"The Volcano Hazards Program; objectives and long-range plans","docAbstract":"<p>Volcanoes and the products of volcanoes have a much greater impact on people and society than is generally perceived. Although commonly destructive, volcanic eruptions can be spectacularly beautiful and, more importantly, they have produced the very air we breathe, the water we drink, and our most fertile soils. Volcanoes also have a profound effect on climate, and their roots form geothermal energy reservoirs and contain valuable mineral deposits including copper, molybdenum, tin, silver, gold, and diamonds. Of course, volcanoes will continue to erupt whether we understand them or not, but one of the functions of enlightened government and a mission of the U.S. Geological Survey (USGS) is to try to understand and to assess the dangers of volcanic eruptions to our land and people.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr83400","usgsCitation":"Bailey, R.A., Beauchemin, P., Kapinos, F., and Klick, D., 1983, The Volcano Hazards Program; objectives and long-range plans: U.S. Geological Survey Open-File Report 83-400, 33 p., https://doi.org/10.3133/ofr83400.","productDescription":"33 p.","costCenters":[],"links":[{"id":139950,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1983/0400/report-thumb.jpg"},{"id":419477,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1983/0400/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","geographicExtents":"{\n  \"type\": 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F.P.","contributorId":73591,"corporation":false,"usgs":true,"family":"Kapinos","given":"F.P.","email":"","affiliations":[],"preferred":false,"id":156268,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Klick, D.W.","contributorId":14814,"corporation":false,"usgs":true,"family":"Klick","given":"D.W.","email":"","affiliations":[],"preferred":false,"id":156265,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":4226,"text":"cir759 - 1983 - The Alaska Mineral Resource Assessment Program: Guide to information contained in folio of geologic and mineral resource maps of the Philip Smith Mountains quadrangle, Alaska","interactions":[],"lastModifiedDate":"2022-10-03T21:28:54.240275","indexId":"cir759","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1983","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":"759","title":"The Alaska Mineral Resource Assessment Program: Guide to information contained in folio of geologic and mineral resource maps of the Philip Smith Mountains quadrangle, Alaska","docAbstract":"The geology and mineral resources of the Philip Smith Mountains quadrangle were virtually unexplored until the investigations for oil began in northern Alaska. Construction of the Trans-Alaskan Pipeline System has now made the quadrangle accessible by road. In 1975 and 1976 a team of geologists, geochemists, and geophysicists investigated the quadrangle in order to assess its mineral resource potential. This report is a guide to the resulting folio of twelve maps that \r\ndescribe the geology, stream sediment geochemistry, aeromagnetic features, Landsat imagery, and mineral resources of the area. \r\n\r\nThe bedrock geology and aeromagnetic surveys show that mineral deposits associated with intrusive rocks are probably absent. However, the geology and geochemical anomalies do indicate the possibility of vein and strata-bound deposits of copper, lead, and zinc in the Paleozoic shale and carbonate rocks in the southern part of the quadrangle and of stratabound deposits of zinc and copper in the Permian and Mesozoic shales along the mountain front. The northwestern part of the quadrangle has a low to moderate potential for oil or gas; Mississippian carbonate rocks are the most likely reservoir. The only minerals produced to date have been construction materials.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/cir759","usgsCitation":"Reiser, H.N., Brosge, W., Hamilton, T.D., Singer, D., Menzie, W., Bird, K.J., Cady, J.W., Le Compte, J., and Cathrall, J.B., 1983, The Alaska Mineral Resource Assessment Program: Guide to information contained in folio of geologic and mineral resource maps of the Philip Smith Mountains quadrangle, Alaska: U.S. Geological Survey Circular 759, iii, 22 p., https://doi.org/10.3133/cir759.","productDescription":"iii, 22 p.","costCenters":[],"links":[{"id":407826,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_23988.htm","linkFileType":{"id":5,"text":"html"}},{"id":31340,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/circ/1983/0759/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":139312,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/circ/1983/0759/report-thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Philip Smith Mountains quadrangle","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -150,\n              68\n            ],\n            [\n              -147,\n              68\n            ],\n            [\n              -147,\n              69\n            ],\n            [\n              -150,\n              69\n            ],\n            [\n              -150,\n              68\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad5e4b07f02db683538","contributors":{"authors":[{"text":"Reiser, H. N.","contributorId":13199,"corporation":false,"usgs":true,"family":"Reiser","given":"H.","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":148456,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Brosge, W. P.","contributorId":58248,"corporation":false,"usgs":true,"family":"Brosge","given":"W. P.","affiliations":[],"preferred":false,"id":148461,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hamilton, T. D.","contributorId":36921,"corporation":false,"usgs":true,"family":"Hamilton","given":"T.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":148458,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Singer, D.A.","contributorId":69128,"corporation":false,"usgs":true,"family":"Singer","given":"D.A.","email":"","affiliations":[],"preferred":false,"id":148462,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Menzie, W. D. II","contributorId":76295,"corporation":false,"usgs":true,"family":"Menzie","given":"W. D.","suffix":"II","affiliations":[],"preferred":false,"id":148463,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Bird, K. J.","contributorId":57824,"corporation":false,"usgs":false,"family":"Bird","given":"K.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":148460,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Cady, J. W.","contributorId":81892,"corporation":false,"usgs":true,"family":"Cady","given":"J.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":148464,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Le Compte, J. R.","contributorId":41816,"corporation":false,"usgs":true,"family":"Le Compte","given":"J. R.","affiliations":[],"preferred":false,"id":148459,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Cathrall, J. B.","contributorId":29400,"corporation":false,"usgs":true,"family":"Cathrall","given":"J.","middleInitial":"B.","affiliations":[],"preferred":false,"id":148457,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}}
,{"id":7442,"text":"ofr83291 - 1983 - Preliminary mineralogic, fluid inclusion, and stable isotope study of the Mahd adh Dhahab gold mine, Kingdom of Saudi Arabia","interactions":[],"lastModifiedDate":"2012-02-02T00:06:08","indexId":"ofr83291","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1983","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":"83-291","title":"Preliminary mineralogic, fluid inclusion, and stable isotope study of the Mahd adh Dhahab gold mine, Kingdom of Saudi Arabia","docAbstract":"The Mahd adh Dhahab mine, located about 280 km northeast of Jiddah, Kingdom of Saudi Arabia, has yielded more than 2 million ounces of gold from periodic production during the past 3,000 years. A new orebody on the southern side of the ancient workings, known as the South orebody, is being developed by Gold Fields-Mahd adh Dhahab Limited. A suite of samples was collected from the newly exposed orebody for preliminary mineralogic, stable isotope, fluid inclusion, and geochemical studies. \r\n\r\nThe Mahd adh Dhahab deposit is in the carapace of a Proterozoic epizonal rhyolite stock that domed pyroclastic and metasedimentary rocks of the Proterozoic Halaban group. Ore of gold, silver, copper, zinc, tellurium, and lead is associated with north-trending, steeply dipping quartz veins in a zone 1,000 m long and 400 m wide. The veins include an assemblage of quartz-chlorite-pyrite-hematite-chalcopyrite-sphalerite-precious metals, which is similar to the mineral assemblage at the epithermal deposit at Creede, Colorado. \r\n\r\nThe primary ore contains abundant chalcopyrite, sphalerite, and pyrite in addition to a complex precious metal assemblage. Gold and silver occur principally as minute grains of telluride minerals disseminated in quartz-chlorite-hematite and as inclusions in chalcopyrite and sphalerite. Telluride minerals include petzite, hessite, and sylvanite. Free gold is present but not abundant. \r\n\r\nAll of the vein-quartz samples contained abundant, minute inclusions of both low-density, vapor-rich fluids and liquid-rich fluids. Primary fluid inclusions yielded homogenization temperatures of from 110? to 238? C. Preliminary light-stable isotope studies of the sulfide minerals and quartz showed that all of the d34S values are between 1.2 and 6.3 per mil, which is a typical range for hydrothermal sulfide minerals that derive their sulfur from an igneous source. \r\n\r\nThe data-suggest that the sulfide sulfur isotope geochemistry was controlled by exchange with la large sulfur isotope reservoir at depth.\r\n\r\nThe d18O values of all stages of vein quartz in the South orebody range between 8.5 and 11.1 per mil. This range is similar to that for quartz from the North orebody and indicates that the hydrothermal system consisted of dominantly exchanged meteoric water, which was uniform in temperature and d18O content throughout the area during the entire period of mineralization.\r\n\r\nLead isotope analyses of two galena samples indicate that the lead in the South orebody is less radiogenic than that from the North orebody and confirm that the lead was derived from oceanic crust approximately 700 Ma ago.","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/ofr83291","usgsCitation":"Rye, R.O., Hall, W., Cunningham, C.G., Czamanske, G., Afifi, A., and Stacey, J.S., 1983, Preliminary mineralogic, fluid inclusion, and stable isotope study of the Mahd adh Dhahab gold mine, Kingdom of Saudi Arabia: U.S. Geological Survey Open-File Report 83-291, 26 p. ill., maps ;28 cm., https://doi.org/10.3133/ofr83291.","productDescription":"26 p. ill., maps ;28 cm.","costCenters":[],"links":[{"id":141579,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1983/0291/report-thumb.jpg"},{"id":34855,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1983/0291/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4aafe4b07f02db66cdfb","contributors":{"authors":[{"text":"Rye, Robert O. rrye@usgs.gov","contributorId":1486,"corporation":false,"usgs":true,"family":"Rye","given":"Robert","email":"rrye@usgs.gov","middleInitial":"O.","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":155633,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hall, W. E.","contributorId":6431,"corporation":false,"usgs":true,"family":"Hall","given":"W. E.","affiliations":[],"preferred":false,"id":155634,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cunningham, C. G.","contributorId":76741,"corporation":false,"usgs":true,"family":"Cunningham","given":"C.","middleInitial":"G.","affiliations":[],"preferred":false,"id":155638,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Czamanske, G.K.","contributorId":26300,"corporation":false,"usgs":true,"family":"Czamanske","given":"G.K.","email":"","affiliations":[],"preferred":false,"id":155635,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Afifi, A.M.","contributorId":39375,"corporation":false,"usgs":true,"family":"Afifi","given":"A.M.","email":"","affiliations":[],"preferred":false,"id":155636,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Stacey, J. S.","contributorId":72785,"corporation":false,"usgs":true,"family":"Stacey","given":"J.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":155637,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":7423,"text":"ofr83486 - 1983 - Preliminary assessment of the geochemistry and mineral favorability of the postorogenic granites of the southeastern Arabian Shield, Kingdom of Saudi Arabia","interactions":[],"lastModifiedDate":"2015-09-16T16:03:09","indexId":"ofr83486","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1983","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":"83-486","title":"Preliminary assessment of the geochemistry and mineral favorability of the postorogenic granites of the southeastern Arabian Shield, Kingdom of Saudi Arabia","docAbstract":"<p>Chemical analyses of samples for 19 postorogenic plutons from the southeastern Arabian Shield show that these rocks have average potassium/rubidium ratios (162) and average rubidium/strontium ratios (11.8) characteristic of highly evolved granites. Most of the analyzed samples are peraluminous. Three plutons are physically similar in terms of shape and megascopic textural zonation to peralkaline complexes in the northeastern part of the Shield, but none of the samples from these plutons is peralkaline. However, these plutons do contain the least-evolved samples.</p>\n<p>Zinc, yttrium, uranium, thorium, and possibly copper, each occur in anomalously high concentrations in at least one pluton relative to contents typically cited for granite. The average regional concentrations of copper and zinc are anomalously high. These facts suggest at least a moderate potential for mineralization in the southeastern part of the Shield. Good correlations (r of 0.5 to 0.8) between uranium, thorium, yttrium, and rubidium and an excellent correlation (r=0.98) between uranium and radium-equivalent uranium suggest that secondary deposits of these elements are unlikely and that magmatic deposits, especially of a pegmatitic nature, are more likely.</p>\n<p>Concentrations of some major elements and several trace elements covary with sample location as measured by latitude and longitude. This fact is interpreted to reflect regional variations in the protolith that have been proposed on the basis of lead isotopic data. The chemical variations suggest a largely oceanic crustal component for granites in the southwestern part of the southeastern Shield and a largely continental crustal component to the northeast.</p>\n<p>Further quantitative analysis is recommended to verify and accurately delineate anomalous concentrations of trace elements. Trend surface analysis of all available data for postorogenic granites from the eastern Arabian Shield is suggested as a method for testing regional variations in the protolith that might control locations of highly favorable areas of ore deposition.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr83486","usgsCitation":"Stuckless, J.S., VanTrump, G., Christiansen, E.H., Bush, C.A., Bunker, C.M., and Bartel, A., 1983, Preliminary assessment of the geochemistry and mineral favorability of the postorogenic granites of the southeastern Arabian Shield, Kingdom of Saudi Arabia: U.S. Geological Survey Open-File Report 83-486, Report: ii, 44 p., ill.; maps: 28 cm., https://doi.org/10.3133/ofr83486.","productDescription":"Report: ii, 44 p., ill.; maps: 28 cm.","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":140460,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1983/0486/report-thumb.jpg"},{"id":34835,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1983/0486/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"Saudi Arabia","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              42.5,\n              17\n            ],\n            [\n              42.5,\n              24\n            ],\n            [\n              45.5,\n              24\n            ],\n            [\n              45.5,\n              17\n            ],\n            [\n              42.5,\n              17\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4aaae4b07f02db6695b7","contributors":{"authors":[{"text":"Stuckless, John S. 0000-0002-7536-0444 jstuckless@usgs.gov","orcid":"https://orcid.org/0000-0002-7536-0444","contributorId":4974,"corporation":false,"usgs":true,"family":"Stuckless","given":"John","email":"jstuckless@usgs.gov","middleInitial":"S.","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":155549,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"VanTrump, G.","contributorId":95869,"corporation":false,"usgs":true,"family":"VanTrump","given":"G.","affiliations":[],"preferred":false,"id":155554,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Christiansen, E. H.","contributorId":65077,"corporation":false,"usgs":true,"family":"Christiansen","given":"E.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":155552,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Bush, C. A.","contributorId":43344,"corporation":false,"usgs":true,"family":"Bush","given":"C.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":155551,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Bunker, C. M.","contributorId":75138,"corporation":false,"usgs":true,"family":"Bunker","given":"C.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":155553,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Bartel, A.J.","contributorId":34508,"corporation":false,"usgs":true,"family":"Bartel","given":"A.J.","email":"","affiliations":[],"preferred":false,"id":155550,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":48831,"text":"ofr83599 - 1983 - Preliminary reconnaissance geologic map of the Copper Mountain Quadrangle, Lemhi County, Idaho","interactions":[],"lastModifiedDate":"2012-02-02T00:10:05","indexId":"ofr83599","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1983","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":"83-599","title":"Preliminary reconnaissance geologic map of the Copper Mountain Quadrangle, Lemhi County, Idaho","language":"ENGLISH","doi":"10.3133/ofr83599","usgsCitation":"Embree, G.F., Hoggan, R.D., and William, E., 1983, Preliminary reconnaissance geologic map of the Copper Mountain Quadrangle, Lemhi County, Idaho: U.S. Geological Survey Open-File Report 83-599, 1 map : photocopy ; 58 x 42 cm., on sheet 107 x 77 cm. + 1 pamphlet (9 p. ; 28 cm.), https://doi.org/10.3133/ofr83599.","productDescription":"1 map : photocopy ; 58 x 42 cm., on sheet 107 x 77 cm. + 1 pamphlet (9 p. ; 28 cm.)","costCenters":[],"links":[{"id":108463,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_14123.htm","linkFileType":{"id":5,"text":"html"},"description":"14123"},{"id":162656,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1983/0599/report-thumb.jpg"},{"id":85658,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1983/0599/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":85659,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1983/0599/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4aafe4b07f02db66cc8e","contributors":{"authors":[{"text":"Embree, G. F.","contributorId":85236,"corporation":false,"usgs":true,"family":"Embree","given":"G.","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":238381,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hoggan, R. D.","contributorId":104954,"corporation":false,"usgs":true,"family":"Hoggan","given":"R.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":238382,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"William, E.J.","contributorId":53854,"corporation":false,"usgs":true,"family":"William","given":"E.J.","email":"","affiliations":[],"preferred":false,"id":238380,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":7181,"text":"ofr83672 - 1983 - Geological and geochemical studies in the Wadi Bidah District, Kingdom of Saudi Arabia","interactions":[],"lastModifiedDate":"2012-02-02T00:06:12","indexId":"ofr83672","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1983","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":"83-672","title":"Geological and geochemical studies in the Wadi Bidah District, Kingdom of Saudi Arabia","docAbstract":"Geological and geochemical followup studies of airborne electromagnetic anomalies in the Wadi Bidah district, southwestern Saudi Arabia, did not reveal metals of economic grade. \r\n\r\nInvestigation of an anomaly enclosing the Rabathan ancient mine disclosed tightly folded and sheared Proterozoic tuffaceous rocks interlayered mostly with chert, dolomite, carbonaceous rocks, and volcanic wacke including cherty iron-manganese formations slightly anomalous in copper and zinc. Three drill holes placed to test anomalies within these formations yielded negative results. \r\n\r\nStudies of a long, narrow anomaly north of the Rabathan area indicated a similar geological environment. This northern area also contains limited zones that are highly anomalous in copper and zinc and extensive zones that are slightly anomalous in those metals. Drilling was not undertaken in this area. \r\n\r\nThe Bilajimah airborne electromagnetic anomaly west of Wadi Bidah coincides with a broad synclinorium of layered felsic turfs and gossans. Geochemical studies indicated slightly anomalous copper, zinc, and silver values in gossans within the anomaly area. Two drill holes intersected carbonaceous rock that contained approximately 15 percent pyrrhotite and traces of sphalerite and chalcopyrite. \r\n\r\nTwo geophysically anomalous areas west of Wadi Bidah surround ancient mines at Mahawiyah and Khayal al Masna'ah. Results of geochemical sampling at these workings were positive. An airborne electromagnetic anomaly located in the Assifar area in the southwestern corner of the Wadi Bidah district is underlain principally by metasedimentary rocks that include large linear zones of cherty iron-manganese formation and a few gossans .containing secondary base metal minerals.\r\n\r\nDetailed mapping and sampling of the Mulhal ancient mine, located west of Wadi Bidah, revealed two types of polymetallic gossans : (1) stratiform deposits interlayered with ignimbrites and mafic volcanic rocks and (2) barite-bearing gossanous material in shear zones that grade into hydrothermally altered shear zones and extend beyond the mine area. The gossans and gossanous shear zones contain anomalous amounts of gold, silver, lead, copper, zinc, barium, and selenium. \r\n\r\nTwo gossans west of Wadi Bidah were mapped and sampled in detail; both gossans are interlayered, with siliceous volcanic rocks. Although the gossan at Jabal Mohr covers a large area, it contains low amounts of precious and base metals. The gossan at Mulhal No. 2 contains moderate to high amounts of gold, silver, copper, lead, and zinc.","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/ofr83672","usgsCitation":"Smith, C.W., Waters, B., Naqvi, M., Worl, R.G., Helaby, A., Flanigan, V.J., Sadek, H., and Samater, R., 1983, Geological and geochemical studies in the Wadi Bidah District, Kingdom of Saudi Arabia: U.S. Geological Survey Open-File Report 83-672, v, 101 p., 6 over-size sheets, ill., maps ;1983., https://doi.org/10.3133/ofr83672.","productDescription":"v, 101 p., 6 over-size sheets, ill., maps ;1983.","costCenters":[],"links":[{"id":142103,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1983/0672/report-thumb.jpg"},{"id":34537,"rank":405,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1983/0672/plate-6.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":34538,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1983/0672/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":34532,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1983/0672/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":34533,"rank":401,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1983/0672/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":34534,"rank":402,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1983/0672/plate-3.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":34535,"rank":403,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1983/0672/plate-4.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":34536,"rank":404,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1983/0672/plate-5.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4adee4b07f02db6876b4","contributors":{"authors":[{"text":"Smith, C. W.","contributorId":57457,"corporation":false,"usgs":true,"family":"Smith","given":"C.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":154648,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Waters, B.C.","contributorId":87412,"corporation":false,"usgs":true,"family":"Waters","given":"B.C.","email":"","affiliations":[],"preferred":false,"id":154653,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Naqvi, M.","contributorId":84210,"corporation":false,"usgs":true,"family":"Naqvi","given":"M.","email":"","affiliations":[],"preferred":false,"id":154652,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Worl, R. G.","contributorId":13984,"corporation":false,"usgs":true,"family":"Worl","given":"R.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":154647,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Helaby, A. M.","contributorId":64241,"corporation":false,"usgs":true,"family":"Helaby","given":"A. M.","affiliations":[],"preferred":false,"id":154649,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Flanigan, V. J.","contributorId":81097,"corporation":false,"usgs":true,"family":"Flanigan","given":"V.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":154650,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Sadek, H.S.","contributorId":93915,"corporation":false,"usgs":true,"family":"Sadek","given":"H.S.","affiliations":[],"preferred":false,"id":154654,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Samater, R.M.","contributorId":82694,"corporation":false,"usgs":true,"family":"Samater","given":"R.M.","affiliations":[],"preferred":false,"id":154651,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":4097,"text":"cir887 - 1983 - Mineral resource assessment of the Iron River 1° x 2° quadrangle, Michigan and Wisconsin","interactions":[{"subject":{"id":8196,"text":"ofr82223 - 1982 - Mineral-resource assessment of the Iron River 1° x 2° quadrangle, Michigan and Wisconsin","indexId":"ofr82223","publicationYear":"1982","noYear":false,"title":"Mineral-resource assessment of the Iron River 1° x 2° quadrangle, Michigan and Wisconsin"},"predicate":"SUPERSEDED_BY","object":{"id":4097,"text":"cir887 - 1983 - Mineral resource assessment of the Iron River 1° x 2° quadrangle, Michigan and Wisconsin","indexId":"cir887","publicationYear":"1983","noYear":false,"title":"Mineral resource assessment of the Iron River 1° x 2° quadrangle, Michigan and Wisconsin"},"id":1}],"lastModifiedDate":"2021-09-30T19:09:26.525097","indexId":"cir887","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1983","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":"887","title":"Mineral resource assessment of the Iron River 1° x 2° quadrangle, Michigan and Wisconsin","docAbstract":"The Iron River 1? x 2? quadrangle contains identified resources of copper and iron. Copper-rich shale beds in the north part of the quadrangle contain 12.2 billion pounds (5.5 billion kilograms) of copper in well-studied deposits including 9.2 billion pounds (4.2 billion kilograms) that are economically minable by 1980 standards. At least several billion pounds of copper probably exist in other parts of the same shale beds, but not enough data are available to measure the amount. \r\n\r\nA small amount, about 250 million pounds (113 million kilograms), of native copper is known to remain in one abandoned mine, and additional but unknown amounts remain in other abandoned mines. About 13.25 billion tons (12.02 billion metric tons) of banded iron-formation averaging roughly 30 percent iron are known within 500 feet (152.4 meters) of the surface in the Gogebic, Marquette, and Iron River-Crystal Falls districts. A small percentage of that might someday be minable as taconite, but none is now believed to be economic. Some higher grade iron concentrations exist in the same iron-formations. Such material was the basis of former mining of iron in the region, but a poor market for such ore and depletion of many deposits have led to the decline of iron mining in the quadrangle. Iron mines of the quadrangle were not being worked in 1980. \r\n\r\nMany parts of the quadrangle contain belts of favorable host rocks for mineral deposits. Although deposits are not known in these belts, undiscovered deposits of copper, zinc, lead, silver, uranium, phosphate, nickel, chromium, platinum, gold, and diamonds could exist.","language":"English","publisher":"U.S. Geological Survey,","doi":"10.3133/cir887","usgsCitation":"Cannon, W.F., 1983, Mineral resource assessment of the Iron River 1° x 2° quadrangle, Michigan and Wisconsin: U.S. Geological Survey Circular 887, iii, 21 p., https://doi.org/10.3133/cir887.","productDescription":"iii, 21 p.","numberOfPages":"24","costCenters":[],"links":[{"id":390061,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_23959.htm"},{"id":31201,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/circ/1983/0887/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":124548,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/circ/1983/0887/report-thumb.jpg"}],"country":"United States","state":"Michigan, Wisconsin","otherGeospatial":"Iron River 1° x 2° quadrangle","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -90,\n              46\n            ],\n            [\n              -88,\n              46\n            ],\n            [\n              -88,\n              47\n            ],\n            [\n              -90,\n              47\n            ],\n            [\n              -90,\n              46\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac8e4b07f02db67c213","contributors":{"authors":[{"text":"Cannon, William F. 0000-0002-2699-8118 wcannon@usgs.gov","orcid":"https://orcid.org/0000-0002-2699-8118","contributorId":1883,"corporation":false,"usgs":true,"family":"Cannon","given":"William","email":"wcannon@usgs.gov","middleInitial":"F.","affiliations":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":148183,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":46796,"text":"ofr83307 - 1983 - Distributions of total copper in samples of nonmagnetic heavy-mineral concentrate and of total and partially extractable copper in samples of stream sediment from the Wallace 1 degree x 2 degree Quadrangle, Montana and Idaho","interactions":[],"lastModifiedDate":"2012-02-02T00:10:47","indexId":"ofr83307","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1983","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":"83-307","title":"Distributions of total copper in samples of nonmagnetic heavy-mineral concentrate and of total and partially extractable copper in samples of stream sediment from the Wallace 1 degree x 2 degree Quadrangle, Montana and Idaho","language":"ENGLISH","doi":"10.3133/ofr83307","usgsCitation":"Leach, D.L., Hopkins, D., Domenico, J.A., and Dawson, H., 1983, Distributions of total copper in samples of nonmagnetic heavy-mineral concentrate and of total and partially extractable copper in samples of stream sediment from the Wallace 1 degree x 2 degree Quadrangle, Montana and Idaho: U.S. Geological Survey Open-File Report 83-307, 3 maps :photocopy ;47 x 63 cm., on sheets 71 x 89 cm. +1 pamphlet (8 p. : maps ; 28 cm.), https://doi.org/10.3133/ofr83307.","productDescription":"3 maps :photocopy ;47 x 63 cm., on sheets 71 x 89 cm. +1 pamphlet (8 p. : maps ; 28 cm.)","costCenters":[],"links":[{"id":171078,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1983/0307/report-thumb.jpg"},{"id":83675,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1983/0307/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":83676,"rank":401,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1983/0307/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":83677,"rank":402,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1983/0307/plate-3.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":83678,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1983/0307/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a6be4b07f02db63d923","contributors":{"authors":[{"text":"Leach, D. L.","contributorId":18758,"corporation":false,"usgs":true,"family":"Leach","given":"D.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":234070,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hopkins, D.M.","contributorId":103646,"corporation":false,"usgs":true,"family":"Hopkins","given":"D.M.","email":"","affiliations":[],"preferred":false,"id":234072,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Domenico, J. A.","contributorId":12028,"corporation":false,"usgs":true,"family":"Domenico","given":"J.","middleInitial":"A.","affiliations":[],"preferred":false,"id":234069,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Dawson, H. E.","contributorId":47362,"corporation":false,"usgs":true,"family":"Dawson","given":"H. E.","affiliations":[],"preferred":false,"id":234071,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":46497,"text":"ofr83372 - 1983 - The mineral resource potential of the Harrat Nawasif, sheet 21/42 C, Ranyah, sheet 21/42 D, and Jabal Dalfa, sheet 21/43 C quadrangles, Kingdom of Saudi Arabia","interactions":[],"lastModifiedDate":"2015-09-02T19:54:20","indexId":"ofr83372","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1983","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":"83-372","title":"The mineral resource potential of the Harrat Nawasif, sheet 21/42 C, Ranyah, sheet 21/42 D, and Jabal Dalfa, sheet 21/43 C quadrangles, Kingdom of Saudi Arabia","docAbstract":"<p>Areas with mineral resource potential in the Harrat Nawasif, Ranyah, and Jabal Dalfa quadrangles in the central Precambrian Shield of Saudi Arabia have been identified by reconnaissance rock geochemistry and inspection of ancient prospects. Locally anomalous areas in perthitic, alkalic granite terrane in the Ranyah quadrangle possibly contain niobium, zirconium, thorium, fluorite, rare-earth, tin, molybdenum, or copper mineralization. The reconnaissance rock geochemical survey in layered volcanic and volcaniclastic terrane in the Jabal Dalfa quadrangle identified a zinc anomaly in quartzite and a nickel-copper zone that is an extension of the Jabal Judayr prospect, where a low-grade, nickel-copper sulfide deposit is known. The Precambrian terrane in the Harrat Nawasif quadrangle has no known mineral resource potential.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"United States","doi":"10.3133/ofr83372","usgsCitation":"Fenton, M.D., 1983, The mineral resource potential of the Harrat Nawasif, sheet 21/42 C, Ranyah, sheet 21/42 D, and Jabal Dalfa, sheet 21/43 C quadrangles, Kingdom of Saudi Arabia: U.S. Geological Survey Open-File Report 83-372, 2 maps :photocopy ;36 x 39 cm., on sheets 61 x 70 cm., and 61 x 63 cm. +1 pamphlet (24 p.  ill. ; 28 cm.), https://doi.org/10.3133/ofr83372.","productDescription":"2 maps :photocopy ;36 x 39 cm., on sheets 61 x 70 cm., and 61 x 63 cm. +1 pamphlet (24 p.  ill. ; 28 cm.)","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":83426,"rank":401,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1983/0372/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":83427,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1983/0372/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":83425,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1983/0372/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":171250,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1983/0372/report-thumb.jpg"}],"country":"Saudi Arabia","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              42,\n              21\n            ],\n            [\n              42,\n              22\n            ],\n            [\n              44,\n              22\n            ],\n            [\n              44,\n              21\n            ],\n            [\n              42,\n              21\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b32e4b07f02db6b495b","contributors":{"authors":[{"text":"Fenton, Michael D. mfenton@usgs.gov","contributorId":2897,"corporation":false,"usgs":true,"family":"Fenton","given":"Michael","email":"mfenton@usgs.gov","middleInitial":"D.","affiliations":[{"id":432,"text":"National Minerals Information Center","active":true,"usgs":true}],"preferred":true,"id":233448,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":46481,"text":"ofr83388 - 1983 - The mineral resource potential of the Thaniyah and Al Ufayriyah quadrangles, sheets 20/42 C and 20/42 A, Kingdom of Saudi Arabia","interactions":[],"lastModifiedDate":"2012-02-02T00:10:59","indexId":"ofr83388","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1983","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":"83-388","title":"The mineral resource potential of the Thaniyah and Al Ufayriyah quadrangles, sheets 20/42 C and 20/42 A, Kingdom of Saudi Arabia","docAbstract":"Areas with mineral resource potential in the Thaniyah and Al Ufayriyah quadrangles in the central Precambrian Shield of Saudi Arabia have been identified by reconnaissance rock geochemistry and inspection of ancient prospects. \r\n\r\nLocally anomalous areas in plutonic terrane have been defined as possible sources of tin, molybdenum, or base metal mineralization. The survey over layered volcanic terrane identified several areas of anomalous copper and zinc. One ancient copper prospect with gossan in the west-central part of the Thaniyah quadrangle merits additional study.","language":"ENGLISH","doi":"10.3133/ofr83388","usgsCitation":"Fenton, M.D., 1983, The mineral resource potential of the Thaniyah and Al Ufayriyah quadrangles, sheets 20/42 C and 20/42 A, Kingdom of Saudi Arabia: U.S. Geological Survey Open-File Report 83-388, 1 map ;72 x34 cm. +1 pamphlet (21 p. ill., map ; 28 cm.), https://doi.org/10.3133/ofr83388.","productDescription":"1 map ;72 x34 cm. +1 pamphlet (21 p. ill., map ; 28 cm.)","costCenters":[],"links":[{"id":168634,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1983/0388/report-thumb.jpg"},{"id":83414,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1983/0388/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":83415,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1983/0388/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b32e4b07f02db6b495c","contributors":{"authors":[{"text":"Fenton, Michael D. mfenton@usgs.gov","contributorId":2897,"corporation":false,"usgs":true,"family":"Fenton","given":"Michael","email":"mfenton@usgs.gov","middleInitial":"D.","affiliations":[{"id":432,"text":"National Minerals Information Center","active":true,"usgs":true}],"preferred":true,"id":233421,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
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