{"pageNumber":"65","pageRowStart":"1600","pageSize":"25","recordCount":2263,"records":[{"id":60021,"text":"mf1369B - 1982 - Geochemical survey of the Ramseys Draft Addition, Augusta and Highland counties, Virginia","interactions":[],"lastModifiedDate":"2018-10-03T12:27:37","indexId":"mf1369B","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1982","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":"1369","chapter":"B","title":"Geochemical survey of the Ramseys Draft Addition, Augusta and Highland counties, Virginia","docAbstract":"<p>The U.S. Geological Survey (USGS) made a reconnaissance geochemical survey of the Ramseys Draft Addition (fig.1) to test for indistinct or unexposed mineral deposits that might be recognized by their geochemical halos.&nbsp; Thirty-three stream-sediment, two soil, and 22 rock samples were collected from the addition during the earlier study of Ramseys Draft Wilderness Study Area (Lesure and others, 1977).&nbsp; The author, assisted by James D. Bliss, April 1979, and Andrew E. Grosz, October 1979, collected 57 stream-sediment, 143 soil, and 22 rock samples in and near the addition to complete the sampling pattern.&nbsp; The earlier studies of Ramseys Draft outlined a low-grade stratabound copper deposit in greenish-gray sandstone of the Hampshire Formation of Late Devonian age (Lesure and Motooka, 1980), and the sampling in the addition was designed to check for more such deposits.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/mf1369B","usgsCitation":"Lesure, F.G., 1982, Geochemical survey of the Ramseys Draft Addition, Augusta and Highland counties, Virginia: U.S. Geological Survey Miscellaneous Field Studies Map 1369, 36.48 x 34.82 inches, https://doi.org/10.3133/mf1369B.","productDescription":"36.48 x 34.82 inches","costCenters":[],"links":[{"id":183766,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/mf/1369-B/report-thumb.jpg"},{"id":358095,"rank":2,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/1369-B/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}}],"scale":"0","country":"United States","state":"Virginia","county":"Augusta County, Highland County","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -79.41666666666667,38.25 ], [ -79.41666666666667,38.416666666666664 ], [ -79.25,38.416666666666664 ], [ -79.25,38.25 ], [ -79.41666666666667,38.25 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b20e4b07f02db6aba39","contributors":{"authors":[{"text":"Lesure, Frank G.","contributorId":20068,"corporation":false,"usgs":true,"family":"Lesure","given":"Frank","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":263002,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":59546,"text":"mf1415B - 1982 - Geochemical survey of the Cohutta Wilderness and the Hemp Top Roadless Area, northern Georgia and southeastern Tennessee","interactions":[],"lastModifiedDate":"2018-09-14T12:52:09","indexId":"mf1415B","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1982","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":"1415","chapter":"B","title":"Geochemical survey of the Cohutta Wilderness and the Hemp Top Roadless Area, northern Georgia and southeastern Tennessee","docAbstract":"<p>The contiguous Cohutta Wilderness and Hemp Top Roadless Area are in the western part of the Blue Ridge physiographic province of northern Georgia and southeastern Tennessee (fig. 1).&nbsp; All of the study area is in Georgia except an irregular strip of land about 1 mi at its widest on the northern end of the Cohutta Wilderness in Tennessee.&nbsp; The area of the Cohutta Wilderness is 34,650 acres; that of the Hemp Top Roadless Area is 2,800 acres.&nbsp; The areas are in rugged mountainous terrain- a strongly dissected upland ranging in altitude from about 980 to 4,200 ft above sea level.&nbsp; Local altitude differences of 1,450-2,000 ft and slopes steeper than 25° are common.&nbsp; The north end of the Cohutta Wilderness is about 6 mi south of the Ocoee River gorge, 10 mi west-southwest of the major copper-and sulfur-mining district at Ducktown, Tenn., and approximately 22 mi southeast of Cleveland, Tenn., in Bradley County, west of the area shown in figure 1.&nbsp; The eastern, central, and northwestern parts of the wilderness are drained by Jacks River and it tributaries; the southwestern part, by the Conasauga River and its tributaries; and the Hemp Top Roadless Area, by Tumbling Creek and some of its western tributaries.&nbsp; All drainage ultimately goes to the Ocoee River and from these into the Hiwassee River.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/mf1415B","usgsCitation":"Gair, J.E., 1982, Geochemical survey of the Cohutta Wilderness and the Hemp Top Roadless Area, northern Georgia and southeastern Tennessee: U.S. Geological Survey Miscellaneous Field Studies Map 1415, 2 Plates: 52.33 x 39.84 inches and 48.70 x 31.49 inches, https://doi.org/10.3133/mf1415B.","productDescription":"2 Plates: 52.33 x 39.84 inches and 48.70 x 31.49 inches","costCenters":[],"links":[{"id":183161,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/mf/1415-B/report-thumb.jpg"},{"id":357341,"rank":2,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/1415-B/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":357342,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/1415-B/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}}],"scale":"0","country":"United States","state":"Georgia, Tennessee","otherGeospatial":"Cohutta Wilderness, Hemp Top Roadless Area","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -84.66666666666667,34.833333333333336 ], [ -84.66666666666667,35.016666666666666 ], [ -84.45083333333334,35.016666666666666 ], [ -84.45083333333334,34.833333333333336 ], [ -84.66666666666667,34.833333333333336 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b20e4b07f02db6aba72","contributors":{"authors":[{"text":"Gair, Jacob E.","contributorId":18381,"corporation":false,"usgs":true,"family":"Gair","given":"Jacob","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":262200,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":59342,"text":"mf1185B - 1982 - Maps and interpretation of geochemical anomalies in the John Muir Wilderness, Fresno, Inyo, Madera and Mono counties, California","interactions":[],"lastModifiedDate":"2018-10-03T12:42:41","indexId":"mf1185B","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1982","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":"1185","chapter":"B","title":"Maps and interpretation of geochemical anomalies in the John Muir Wilderness, Fresno, Inyo, Madera and Mono counties, California","docAbstract":"<p>A geochemical survey of the John Muir Wilderness was conducted by the U.S. Geological Survey between 1969 and 1978.&nbsp; The 755-mi<sup>2</sup><span id=\"_mce_caret\" data-mce-bogus=\"1\" data-mce-type=\"format-caret\"> (1,956-km<sup>2</sup><span id=\"_mce_caret\" data-mce-bogus=\"1\" data-mce-type=\"format-caret\">) wilderness is located in the central Sierra Nevada, Calif. (fig. 1). Stream-sediment samples were collected at 1,434 sites in the wilderness and immediately adjacent areas.&nbsp; Analytical data for these samples and a map of smapling sites are presented by du Bray and Dellinger (1980) and Diggles and others (1981).&nbsp; A geologic map of the area was compiled by du Bray (1981).&nbsp; These maps and tables present the results of the analysis of geochemical data for lead, zinc, gold, silver, arsenic, chromium, molybdenum, manganese, tungsten, tin, copper, and nickel.&nbsp; These are elements of economic interest which have historically been found in mineral deposits of the Sierra Nevada or other geologically similar areas.</span></span></p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/mf1185B","usgsCitation":"Dellinger, D.A., Diggles, M.F., and Du Bray, E.A., 1982, Maps and interpretation of geochemical anomalies in the John Muir Wilderness, Fresno, Inyo, Madera and Mono counties, California: U.S. Geological Survey Miscellaneous Field Studies Map 1185, 3 Plates: 53.55 x 41.36 inches or smaller, https://doi.org/10.3133/mf1185B.","productDescription":"3 Plates: 53.55 x 41.36 inches or smaller","costCenters":[],"links":[{"id":358096,"rank":2,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/1185-B/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":358097,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/1185-B/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":358098,"rank":4,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/1185-B/plate-3.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":182262,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/mf/1185-B/report-thumb.jpg"}],"scale":"0","country":"United States","state":"California","county":"Fresno County, Inyo County, Madera County, Mono County","otherGeospatial":"John Muir Wilderness","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -119.25,36.416666666666664 ], [ -119.25,37.75 ], [ -118.5,37.75 ], [ -118.5,36.416666666666664 ], [ -119.25,36.416666666666664 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a92e4b07f02db6579b4","contributors":{"authors":[{"text":"Dellinger, David A.","contributorId":56218,"corporation":false,"usgs":true,"family":"Dellinger","given":"David","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":261821,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"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":501,"text":"Office of Science Quality and Integrity","active":true,"usgs":true},{"id":5053,"text":"IPDS Training","active":true,"usgs":true},{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":261823,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Du Bray, E. A. (compiler)","contributorId":88032,"corporation":false,"usgs":true,"family":"Du Bray","given":"E.","suffix":"(compiler)","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":261822,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":59050,"text":"mf1475D - 1982 - Mineral resource potential map of the Vermilion Cliffs-Paria Canyon instant study area, Coconino County, Arizona, and Kane County, Utah","interactions":[],"lastModifiedDate":"2015-10-20T13:09:32","indexId":"mf1475D","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1982","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":"1475","chapter":"D","title":"Mineral resource potential map of the Vermilion Cliffs-Paria Canyon instant study area, Coconino County, Arizona, and Kane County, Utah","docAbstract":"<p>In general, the mineral potential of the study area is low; in the past the area has yielded only several hundred tons of uranium ore, and there have been a number of unsuccessful efforts to produce gold.</p>\n<p>The generally small uraniferous deposits are in the Chinle Formation, mostly in the basal Shinarump Member, and mostly on the east side of the Paria Plateau. To the south and west, around the plateau, the Shinarump host rock pinches out or is present in only a few places, and the same relationships are likely below the plateau, where the host rocks are deeply buried, from 1,500 to 3,000 ft below the surface. These factors suggest the total uranium-copper-vanadium-silver potential to be very low.</p>\n<p>Gold and mercury occur in very low concentrations in the clayey units of the Petrified Forest Member of the Chinle. Gold concentrations are 40 ppb and less, and the gold is present in very fine particles; recovery is very difficult. Overall, the mercury concentrations are so low that no realistic mineral resource potential can be estimated.</p>\n<p>Nonmetallic mineral materials of possible value include limestone, flagstone, clay, and gravel, but they are of only local interest. No oil or gas resources are known in the study area. Coal resources within the area are nonexistent, but the Dakota Sandstone does contain coaly beds a few miles to the north.</p>\n<p>Water is perhaps the most significant resource needed in the study area. A number of perennial springs support the few local ranchers and tourist facilities. Some ground water would be available below the plateau, but drilling depths would be more than 2,000 ft (600-700 m).</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/mf1475D","usgsCitation":"Bush, A., and Lane, M., 1982, Mineral resource potential map of the Vermilion Cliffs-Paria Canyon instant study area, Coconino County, Arizona, and Kane County, Utah: U.S. Geological Survey Miscellaneous Field Studies Map 1475, Report: 11 p.; Plate: 46.25 x 38.48 inches, https://doi.org/10.3133/mf1475D.","productDescription":"Report: 11 p.; Plate: 46.25 x 38.48 inches","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":183527,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/mf1475D.jpg"},{"id":310159,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/mf/1475-D/report.pdf","text":"Report","linkFileType":{"id":1,"text":"pdf"}},{"id":310160,"rank":2,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/1475-D/plate-1.pdf","text":"Plate","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Arizona","county":"Coconino County, Kane County","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -112.25,36.75 ], [ -112.25,37 ], [ -111.75,37 ], [ -111.75,36.75 ], [ -112.25,36.75 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a61e4b07f02db6357d1","contributors":{"authors":[{"text":"Bush, Alfred L.","contributorId":48977,"corporation":false,"usgs":true,"family":"Bush","given":"Alfred L.","affiliations":[],"preferred":false,"id":261327,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lane, Michael","contributorId":39756,"corporation":false,"usgs":true,"family":"Lane","given":"Michael","affiliations":[],"preferred":false,"id":261326,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":58667,"text":"mf1391A - 1982 - Mineral resources potential map of the Lost Cove and Harper Creek Roadless Areas, Avery and Caldwell counties, North Carolina","interactions":[],"lastModifiedDate":"2015-10-22T13:38:25","indexId":"mf1391A","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1982","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":"1391","chapter":"A","title":"Mineral resources potential map of the Lost Cove and Harper Creek Roadless Areas, Avery and Caldwell counties, North Carolina","docAbstract":"<p>A geologic, geophysical, and geochemical investigation and a survey of mines, quarries, and prospects have been conducted to evaluate the mineral resource potential of the Lost Cove and Harper Creek Roadless Areas, Avery and Caldwell Counties, North Carolina. The study area lies within the Blue Ridge physiographic province and is predominatly underlain by Precambrian age plutonic and metasedimentary rocks of low metamorphic grade. All surface and mineral rights are Federally owned. Permit areas for uranium prospecting cover about 85 percent of the area.</p>\n<p>Uranium-rich rock in the Lost Cove and Harper Creek Roadless Areas occurs widely in the Wilson Creek Gneiss and to a minor extent in the Grandfather Mountain Formation. Vein-type deposits and other occurrences of uranium in foliated rocks in the Wilson Creek Gneiss have uranium resource potential. Speculative resources of uranium in vein-type deposits and in supergene-enriched foliated rocks are estimated to total 4 to 8 million pounds of U<sub>3</sub>O<sub>8</sub>.</p>\n<p>Mineral resources having low to moderate potential are gold and minerals of thorium, beryllium, niobium, and copper. Stone has a low economic potential; lead, molybdenum, and titanium have low resource potential. These conclusions are based on results of prospect examination, radiometric survey, geochemical survey of stream sediments, saprolite, and bedrock.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/mf1391A","usgsCitation":"Crandall, T., Ross, R.B., Whitlow, J.W., and Griffitts, W.R., 1982, Mineral resources potential map of the Lost Cove and Harper Creek Roadless Areas, Avery and Caldwell counties, North Carolina: U.S. Geological Survey Miscellaneous Field Studies Map 1391, Report: 14 p.; Plate: 37.84 x 36.10 inches, https://doi.org/10.3133/mf1391A.","productDescription":"Report: 14 p.; Plate: 37.84 x 36.10 inches","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":181973,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/mf1391A.jpg"},{"id":310519,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/mf/1391-A/report.pdf","text":"Report","linkFileType":{"id":1,"text":"pdf"}},{"id":310520,"rank":2,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/1391-A/plate-1.pdf","text":"Plate","linkFileType":{"id":1,"text":"pdf"}}],"scale":"48","country":"United States","state":"North Carolina","county":"Avery County, Caldwell County","otherGeospatial":"Harper Creek Roadless Area, Lost Cove Roadless Area","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -81.86749999999999,35.8675 ], [ -81.86749999999999,36.1175 ], [ -81.75,36.1175 ], [ -81.75,35.8675 ], [ -81.86749999999999,35.8675 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b05e4b07f02db699f83","contributors":{"authors":[{"text":"Crandall, T.M.","contributorId":13314,"corporation":false,"usgs":true,"family":"Crandall","given":"T.M.","email":"","affiliations":[],"preferred":false,"id":260331,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ross, R. B.","contributorId":66342,"corporation":false,"usgs":true,"family":"Ross","given":"R.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":260333,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Whitlow, J. W.","contributorId":63810,"corporation":false,"usgs":true,"family":"Whitlow","given":"J.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":260332,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Griffitts, W. R.","contributorId":10428,"corporation":false,"usgs":true,"family":"Griffitts","given":"W.","middleInitial":"R.","affiliations":[],"preferred":false,"id":260330,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":58615,"text":"mf1463C - 1982 - Mineral resource potential map of the lower San Francisco Wilderness study area and contiguous roadless area, Greenlee County, Arizona and Catron and Grant Counties, New Mexico","interactions":[],"lastModifiedDate":"2015-10-20T11:24:13","indexId":"mf1463C","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1982","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":"1463","chapter":"C","title":"Mineral resource potential map of the lower San Francisco Wilderness study area and contiguous roadless area, Greenlee County, Arizona and Catron and Grant Counties, New Mexico","docAbstract":"<p>The Lower San Francisco Wilderness Study Area consists of a narrow strip 1-2 mi (2-3 km) wide between the rims of the San Francisco River canyon. The wilderness study area has a moderately high potential for geothermal resources, a low to moderate potential for base metal or precious metal resources in middle to upper Tertiary volcanic rocks, essentially no oil, gas, or coal potential, and a largely unassessable potential for metal deposits related to Laramide igneous intrusions in pre-Tertiary or lower Tertiary rocks that underlie the area. The contiguous roadless area, which borders the New Mexico half of the wilderness study area, mainly on the north side of the San Francisco River, has a low to moderate potential for molybdenum or copper deposits related to intrusive igneous rocks in the core of a volcano of dacitic composition at Goat Basin.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/mf1463C","usgsCitation":"Ratte, J.C., Hassemer, J.R., Martin, R.A., and Lane, M., 1982, Mineral resource potential map of the lower San Francisco Wilderness study area and contiguous roadless area, Greenlee County, Arizona and Catron and Grant Counties, New Mexico: U.S. Geological Survey Miscellaneous Field Studies Map 1463, Report: 6 p.; Plate: 34.61 x 25.29 inches, https://doi.org/10.3133/mf1463C.","productDescription":"Report: 6 p.; Plate: 34.61 x 25.29 inches","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":184647,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/mf1463C.jpg"},{"id":310136,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/mf/1463-C/report.pdf","text":"Report","linkFileType":{"id":1,"text":"pdf"}},{"id":310137,"rank":2,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/1463-C/plate-1.pdf","text":"Plate","linkFileType":{"id":1,"text":"pdf"}}],"scale":"62500","country":"United States","state":"Arizona, New Mexico","county":"Catron County, Greenlee County, Grant County","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -109.16666666666667,33.166666666666664 ], [ -109.16666666666667,33.266666666666666 ], [ -108.91666666666667,33.266666666666666 ], [ -108.91666666666667,33.166666666666664 ], [ -109.16666666666667,33.166666666666664 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a1ae4b07f02db6062d5","contributors":{"authors":[{"text":"Ratte, James C. jratte@usgs.gov","contributorId":875,"corporation":false,"usgs":true,"family":"Ratte","given":"James","email":"jratte@usgs.gov","middleInitial":"C.","affiliations":[],"preferred":true,"id":260072,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hassemer, Jerry R.","contributorId":79448,"corporation":false,"usgs":true,"family":"Hassemer","given":"Jerry","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":260073,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Martin, Ronny A.","contributorId":45771,"corporation":false,"usgs":true,"family":"Martin","given":"Ronny","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":260074,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lane, Michael","contributorId":39756,"corporation":false,"usgs":true,"family":"Lane","given":"Michael","affiliations":[],"preferred":false,"id":260071,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":8301,"text":"ofr821029 - 1982 - Occurrences of copper minerals in Alaska","interactions":[{"subject":{"id":8301,"text":"ofr821029 - 1982 - Occurrences of copper minerals in Alaska","indexId":"ofr821029","publicationYear":"1982","noYear":false,"title":"Occurrences of copper minerals in Alaska"},"predicate":"SUPERSEDED_BY","object":{"id":69289,"text":"mr90 - 1984 - Map showing occurrences of copper minerals in Alaska","indexId":"mr90","publicationYear":"1984","noYear":false,"title":"Map showing occurrences of copper minerals in Alaska"},"id":1}],"supersededBy":{"id":69289,"text":"mr90 - 1984 - Map showing occurrences of copper minerals in Alaska","indexId":"mr90","publicationYear":"1984","noYear":false,"title":"Map showing occurrences of copper minerals in Alaska"},"lastModifiedDate":"2023-11-21T22:47:38.310187","indexId":"ofr821029","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1982","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":"82-1029","title":"Occurrences of copper minerals in Alaska","docAbstract":"<p>The following references give data, as of June 1, 1982, on localities where copper minerals have been found in Alaska. References are keyed by number to locations shown on the accompanying map. An asterisk (*) preceding a locality name indicates recorded production.</p><p>In most instances the report(s) cited for each occurrence is a summary of data in older reports and was compiled since 1975. Most of the summary reports contain lists of the reports used in their compilation. Citations are in standard bibliographic format with the exception that each includes, in parentheses, an abbreviation for the report or map series and the number of the report or map. Abbreviations used are: AOF, State of Alaska Division of Geological and Geophysical Surveys Open-File Report; B, U.S. Geological Survey Bulletin; BMOF, U.S. Bureau of Mines Open-File Report; C, U.S. Geological Survey Circular; MF, U.S. Geological Survey Miscellaneous Field Studies Map; OF, U.S. Geological Survey Open-File Report; P, U.S. Geological Survey Professional Paper.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr821029","usgsCitation":"1982, Occurrences of copper minerals in Alaska: U.S. Geological Survey Open-File Report 82-1029, Report: 32 p.; 1 Plate: 47.99 x 35.97 inches, https://doi.org/10.3133/ofr821029.","productDescription":"Report: 32 p.; 1 Plate: 47.99 x 35.97 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,{"id":58596,"text":"mf1315B - 1982 - Mineral resource potential map of the Gila-San Francisco Wilderness Study Area, Graham and Greenlee counties, Arizona","interactions":[],"lastModifiedDate":"2015-10-20T11:05:10","indexId":"mf1315B","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1982","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":"1315","chapter":"B","title":"Mineral resource potential map of the Gila-San Francisco Wilderness Study Area, Graham and Greenlee counties, Arizona","docAbstract":"<p>The mineral resource potential of the Gila-San Francisco Wilderness Study Area (AZ-040-022/023/024) is low (fig. 2). Although favorable geologic environments for placer gold deposits and manganese vein deposits are present in the study area, the probability of discovering economically exploitable deposits of these metals is low, and not encouraging. Even more speculative is the study area's porphyry copper potential which is based solely on the possibility of favorable host terranes underlying the study area at depth. The study area does contain substantial deposits of pumice, but their economic significance is probably minor. A part of the study area has been previously designated a Known Geothermal Resource Area (KGRA).</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/mf1315B","usgsCitation":"Richter, D.H., Klein, D.P., Lawrence, V.A., and Lane, M., 1982, Mineral resource potential map of the Gila-San Francisco Wilderness Study Area, Graham and Greenlee counties, Arizona: U.S. Geological Survey Miscellaneous Field Studies Map 1315, Report: 5 p.; 1 Plate: 41.29 x 27.61 inches, https://doi.org/10.3133/mf1315B.","productDescription":"Report: 5 p.; 1 Plate: 41.29 x 27.61 inches","numberOfPages":"6","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":183559,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/MF1315b.jpg"},{"id":310117,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/mf/1315-B/report.pdf","text":"Report","linkFileType":{"id":1,"text":"pdf"}},{"id":310118,"rank":2,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/1315-B/plate-1.pdf","text":"Plate","linkFileType":{"id":1,"text":"pdf"}}],"scale":"62500","country":"United States","state":"Arizona","county":"Graham County, Greenlee County","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -109.58333333333333,32.75 ], [ -109.58333333333333,33.166666666666664 ], [ -109.25,33.166666666666664 ], [ -109.25,32.75 ], [ -109.58333333333333,32.75 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b1be4b07f02db6a8eb5","contributors":{"authors":[{"text":"Richter, Donlad H.","contributorId":91891,"corporation":false,"usgs":true,"family":"Richter","given":"Donlad","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":259975,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Klein, Douglas P.","contributorId":50896,"corporation":false,"usgs":true,"family":"Klein","given":"Douglas","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":259974,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lawrence, Viki A.","contributorId":68809,"corporation":false,"usgs":true,"family":"Lawrence","given":"Viki","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":259976,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lane, Michael","contributorId":39756,"corporation":false,"usgs":true,"family":"Lane","given":"Michael","affiliations":[],"preferred":false,"id":571124,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":41465,"text":"ofr82393 - 1982 - Preliminary geologic map of the Copper Mountain Quadrangle, Stanislaus County, California","interactions":[],"lastModifiedDate":"2012-02-02T00:05:02","indexId":"ofr82393","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1982","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":"82-393","title":"Preliminary geologic map of the Copper Mountain Quadrangle, Stanislaus County, California","language":"ENGLISH","doi":"10.3133/ofr82393","usgsCitation":"Dibblee, T.W., 1982, Preliminary geologic map of the Copper Mountain Quadrangle, Stanislaus County, California: U.S. Geological Survey Open-File Report 82-393, 1 map ;58 x 46 cm., https://doi.org/10.3133/ofr82393.","productDescription":"1 map ;58 x 46 cm.","costCenters":[],"links":[{"id":101909,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_172.htm","linkFileType":{"id":5,"text":"html"},"description":"172"},{"id":135605,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":79203,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1982/0393/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac8e4b07f02db67bb19","contributors":{"authors":[{"text":"Dibblee, T. W. Jr.","contributorId":95445,"corporation":false,"usgs":true,"family":"Dibblee","given":"T.","suffix":"Jr.","middleInitial":"W.","affiliations":[],"preferred":false,"id":225071,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":8196,"text":"ofr82223 - 1982 - 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}],"supersededBy":{"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"},"lastModifiedDate":"2022-02-18T21:07:18.434073","indexId":"ofr82223","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1982","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":"82-223","title":"Mineral-resource assessment of the Iron River 1° x 2° quadrangle, Michigan and Wisconsin","docAbstract":"<p>The Iron River 1° x 2° quadrangle contains identified resources of copper and iron. Copper-rich shale beds in t1n north part of the quadrangle contain 12.2 billion pounds (5.5 billion kg) of copper in well-studied deposits including 9.2 billion pounds (4.2 billion kg) that are economically mineable 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.</p><p>A small amount, about 250 million pounds (113 million kg), of native copper is known to remain in one abandoned mine, and additional but unknown amounts remain in other abandoned mines.</p><p>About 13.25 billion tons (12.02 billion t) of handed iron-formation averaging roughly 30 percent iron are known within 500 feet (152.4 m) of the surface in the Gogebic, Marquette, and Iron River-Crystal Falls districts. Some, probably small, percentage of that might someday be mineable as taconite, but none is now believed to be economic. Some higher grade iron concentrations exist in tin 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 has lead to the decline of iron mining in the quadrangle. No iron mines of the quadrangle were being worked in 1981.</p><p>Many parts of the quadrangle contain belts of favorable host rocks for mineral deposits. Although no deposits are known in these belts, undiscovered deposits of copper, zinc, lead, silver, uranium, phosphate, nickel, chromium, platinum, gold, and diamonds could exist.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr82223","collaboration":"Prepared in cooperation with Geological Survey Division, Michigan Department of Natural Resources and Wisconsin Geological and Natural History Survey","usgsCitation":"Cannon, W., 1982, Mineral-resource assessment of the Iron River 1° x 2° quadrangle, Michigan and Wisconsin: U.S. Geological Survey Open-File Report 82-223, Report: 33 p.; 1 Figure: 21.26 x 12.16 inches, https://doi.org/10.3133/ofr82223.","productDescription":"Report: 33 p.; 1 Figure: 21.26 x 12.16 inches","costCenters":[],"links":[{"id":396199,"rank":4,"type":{"id":29,"text":"Figure"},"url":"https://pubs.usgs.gov/of/1982/0223/figure-2.pdf","text":"Figure 2","linkFileType":{"id":1,"text":"pdf"}},{"id":396198,"rank":3,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1982/0223/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":395642,"rank":2,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_13686.htm"},{"id":395571,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1982/0223/report-thumb.jpg"}],"scale":"500000","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":"4f4e4a6de4b07f02db63ee05","contributors":{"authors":[{"text":"Cannon, W.F. 0000-0002-2699-8118","orcid":"https://orcid.org/0000-0002-2699-8118","contributorId":70382,"corporation":false,"usgs":true,"family":"Cannon","given":"W.F.","affiliations":[],"preferred":false,"id":157325,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":8139,"text":"ofr82491 - 1982 - Geochemical reconnaissance for uranium occurrences in the Notch Peak intrusive area, House Range, Millard County, Utah","interactions":[],"lastModifiedDate":"2012-02-02T00:06:13","indexId":"ofr82491","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1982","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":"82-491","title":"Geochemical reconnaissance for uranium occurrences in the Notch Peak intrusive area, House Range, Millard County, Utah","docAbstract":"Samples collected from the contact metamorphic zone of the Notch Peak intrusive area, House Range, Millard County, Utah, indicate the occurrence of low-grade uranium and thorium ore. Maximum abundances in the altered mineralized rocks in the contact zone are 450 ppm uranium and 480 ppm thorium. Interpretation of factor analysis of the spectrochemical and delayed neutron analytical data suggests the presence of five geological factors which account for 82 percent of element covariance of 34 elements in 61 samples. The factors are identified as (1) limestone source rock reactions; (2) monzonite source rock reactions; (3) hydrothermal element group 1; (4) rare earth group; and (5) hydrothermal element group 2. The last factor effects the distribution of, primarily, beryllium, uranium, copper, molybdenum, tungsten, niobium, and secondarily, thorium, tin, and zinc; it is identified as the prime mineralization factor. \r\n\r\nThe Notch Peak intrusive area has been a tungsten producing area since before the 1940's and the location of small-scale gold placer operations. This reconnaissance study was a 'follow-up' of uranium anomaly data which were developed during the U.S. Dept. of Energy National Uranium Resource Evaluation (NURE) program in 1978-80.","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/ofr82491","usgsCitation":"Cadigan, R.A., and Robinson, K., 1982, Geochemical reconnaissance for uranium occurrences in the Notch Peak intrusive area, House Range, Millard County, Utah: U.S. Geological Survey Open-File Report 82-491, iii, 57 p., ill., maps ;28 cm., https://doi.org/10.3133/ofr82491.","productDescription":"iii, 57 p., ill., maps ;28 cm.","costCenters":[],"links":[{"id":142132,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1982/0491/report-thumb.jpg"},{"id":35742,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1982/0491/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b23e4b07f02db6ade91","contributors":{"authors":[{"text":"Cadigan, R. A.","contributorId":57844,"corporation":false,"usgs":true,"family":"Cadigan","given":"R.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":157214,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Robinson, Keith","contributorId":80277,"corporation":false,"usgs":true,"family":"Robinson","given":"Keith","affiliations":[],"preferred":false,"id":157215,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":7709,"text":"ofr821051 - 1982 - Effects of processed oil shale on the element content of Atriplex cancescens","interactions":[],"lastModifiedDate":"2012-02-02T00:06:08","indexId":"ofr821051","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1982","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":"82-1051","title":"Effects of processed oil shale on the element content of Atriplex cancescens","docAbstract":"Samples of four-wing saltbush were collected from the Colorado State University Intensive Oil Shale Revegetation Study Site test plots in the Piceance basin, Colorado. The test plots were constructed to evaluate the effects of processed oil shale geochemistry on plant growth using various thicknesses of soil cover over the processed shale and/or over a gravel barrier between the shale and soil. Generally, the thicker the soil cover, the less the influence of the shale geochemistry on the element concentrations in the plants. Concentrations of 20 elements were larger in the ash of four-wing saltbush growing on the plot with the gravel barrier (between the soil and processed shale) when compared to the sample from the control plot. A greater water content in the soil in this plot has been reported, and the interaction between the increased, percolating water and shale may have increased the availability of these elements for plant uptake. Concentrations of boron, copper, fluorine, lithium, molybdenum, selenium, silicon, and zinc were larger in the samples grown over processed shale, compared to those from the control plot, and concentrations for barium, calcium, lanthanum, niobium, phosphorus, and strontium were smaller. \r\n\r\nConcentrations for arsenic, boron, fluorine, molybdenum, and selenium-- considered to be potential toxic contaminants--were similar to results reported in the literature for vegetation from the test plots. The copper-to-molybdenum ratios in three of the four samples of four-wing saltbush growing over the processed shale were below the ratio of 2:1, which is judged detrimental to ruminants, particularly cattle. Boron concentrations averaged 140 ppm, well above the phytotoxicity level for most plant species. Arsenic, fluorine, and selenium concentrations were below toxic levels, and thus should not present any problem for revegetation or forage use at this time.","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/ofr821051","usgsCitation":"Anderson, B., 1982, Effects of processed oil shale on the element content of Atriplex cancescens: U.S. Geological Survey Open-File Report 82-1051, 18 p., ill., map ;28 cm., https://doi.org/10.3133/ofr821051.","productDescription":"18 p., ill., map ;28 cm.","costCenters":[],"links":[{"id":141578,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1982/1051/report-thumb.jpg"},{"id":35173,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1982/1051/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e48cfe4b07f02db5460a4","contributors":{"authors":[{"text":"Anderson, B.M.","contributorId":69552,"corporation":false,"usgs":true,"family":"Anderson","given":"B.M.","email":"","affiliations":[],"preferred":false,"id":156479,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":4156,"text":"cir855 - 1982 - The Alaska Mineral Resource Assessment Program: Guide to information about the geology and mineral resources of the Ketchikan and Prince Rupert quadrangles, southeastern Alaska","interactions":[],"lastModifiedDate":"2021-11-18T20:54:59.200928","indexId":"cir855","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1982","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":"855","title":"The Alaska Mineral Resource Assessment Program: Guide to information about the geology and mineral resources of the Ketchikan and Prince Rupert quadrangles, southeastern Alaska","docAbstract":"The Ketchikan and Prince Rupert 1-degree by 2-degree quadrangles, which encompass about 16,000 km2 at the south tip of southeastern Alaska, have been investigated by integrated field and laboratory studies in the disciplines of geology, geochemistry, geophysics, and Landsat data interpretation to determine their mineral-resource potential. Mineral deposits in the study area have been mined or prospected intermittently since about 1900, and production of small tonnages of ores containing gold, silver, copper, lead, zinc, and tungsten has been recorded. Extensive exploration and development currently (1981) is underway at a molybdenum prospect about 65 km east of Ketchikan. Our mineral-resource assessment indicates that the area contains potentially significant amounts of those metallic commodities, as well as of molybdenum, iron, antimony, and barite. The results of these studies have been published in a folio of maps accompanied by descriptive texts, diagrams, tables, and pertinent references. The present report serves as a guide to these investigations, provides relevant background information, and integrates the component maps and reports. It also describes revisions to the geology based on studies completed since the folio was published and includes a list of specific and general references on the geology and mineral deposits of the study area.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/cir855","usgsCitation":"Berg, H., 1982, The Alaska Mineral Resource Assessment Program: Guide to information about the geology and mineral resources of the Ketchikan and Prince Rupert quadrangles, southeastern Alaska: U.S. Geological Survey Circular 855, iii, 24 p., https://doi.org/10.3133/cir855.","productDescription":"iii, 24 p.","costCenters":[],"links":[{"id":391884,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_23951.htm"},{"id":139234,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/circ/1982/0855/report-thumb.jpg"},{"id":31265,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/circ/1982/0855/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Alaska","otherGeospatial":"Ketchikan and Prince Rupert quadrangles","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -132,\n              54.717\n            ],\n            [\n              -130,\n              54.717\n            ],\n            [\n              -130,\n              56\n            ],\n            [\n              -132,\n              56\n            ],\n            [\n              -132,\n              54.717\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad5e4b07f02db6835c1","contributors":{"authors":[{"text":"Berg, Henry C.","contributorId":73176,"corporation":false,"usgs":true,"family":"Berg","given":"Henry C.","affiliations":[],"preferred":false,"id":148308,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":7175,"text":"ofr82299 - 1982 - Geologic reconnaissance and geochemical sampling survey of molybdenum mineralization near Schiestler Peak, Temple Peak Quadrangle, Sublette County, Wyoming","interactions":[],"lastModifiedDate":"2012-02-02T00:06:12","indexId":"ofr82299","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1982","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":"82-299","title":"Geologic reconnaissance and geochemical sampling survey of molybdenum mineralization near Schiestler Peak, Temple Peak Quadrangle, Sublette County, Wyoming","docAbstract":"A brief geologic reconnaissance and geochemical survey of molybdenum mineralization near Schiestler Peak, Sublette County, Wyo., indicates that molybdenite occurs in this area as disseminations and blebs in granitic or quartz monzonitic rocks intruded by felsic dikes of similar composition. Samples of stream sediments, panned concentrates from stream sediments, soils, rocks, and water were collected in the geochemical survey. Analytical results show that in reconnaissance, panned concentrates are the best of the sample types used in this study to detect molybdenum mineralization. More detailed analysis of the distribution of the molybdenum is best achieved through the collection of rock samples. Hydrothermal alteration is generally not conspicuous in the study area; however, rock samples that contain molybdenite are usually slightly enriched in silver, copper, lead, and in several instances, gold. Conversely, there appear to be negative associations between molybdenum and zinc and between molybdenum and several of the rare-earth elements. Mo concentrations in the rock samples with no visible molybdenite range from undetectable at a sensitivity of 5 parts per million (ppm) to 700 ppm. Mo content in rock samples containing visible molybdenite ranges from 10 ppm to greater than 2,000 ppm. Stream-sediment values range from undetected to 15 ppm; panned concentrates from undetected to 15 ppm; soils from undetected to 20 ppm. Analyses of the water samples indicate Mo concentrations from 0.8 parts per billion (ppb) to 4.8 ppb. As currently understood, this deposit is not extensive or continuous, but drilling to provide information on the vertical extent of mineralization may alter this opinion.","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/ofr82299","usgsCitation":"Lee, G.K., Antweiler, J., Love, J.D., and Benedict, J., 1982, Geologic reconnaissance and geochemical sampling survey of molybdenum mineralization near Schiestler Peak, Temple Peak Quadrangle, Sublette County, Wyoming: U.S. Geological Survey Open-File Report 82-299, 205 p., 4 over-size sheets, map ;28 cm., https://doi.org/10.3133/ofr82299.","productDescription":"205 p., 4 over-size sheets, map ;28 cm.","costCenters":[],"links":[{"id":141953,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1982/0299/report-thumb.jpg"},{"id":34517,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1982/0299/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":34518,"rank":401,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1982/0299/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":34519,"rank":402,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1982/0299/plate-3.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":34520,"rank":403,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1982/0299/plate-4.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":34521,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1982/0299/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae0e4b07f02db688442","contributors":{"authors":[{"text":"Lee, G. K.","contributorId":76722,"corporation":false,"usgs":true,"family":"Lee","given":"G.","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":154626,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Antweiler, J.C.","contributorId":35722,"corporation":false,"usgs":true,"family":"Antweiler","given":"J.C.","email":"","affiliations":[],"preferred":false,"id":154623,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Love, J. D.","contributorId":64620,"corporation":false,"usgs":true,"family":"Love","given":"J.","middleInitial":"D.","affiliations":[],"preferred":false,"id":154624,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Benedict, J.F.","contributorId":66688,"corporation":false,"usgs":true,"family":"Benedict","given":"J.F.","email":"","affiliations":[],"preferred":false,"id":154625,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":2828,"text":"wsp2078 - 1982 - Some chemical characteristics of mine drainage in Illinois","interactions":[{"subject":{"id":11453,"text":"ofr80416 - 1980 - Some chemical characteristics of mine drainage in Illinois","indexId":"ofr80416","publicationYear":"1980","noYear":false,"title":"Some chemical characteristics of mine drainage in Illinois"},"predicate":"SUPERSEDED_BY","object":{"id":2828,"text":"wsp2078 - 1982 - Some chemical characteristics of mine drainage in Illinois","indexId":"wsp2078","publicationYear":"1982","noYear":false,"title":"Some chemical characteristics of mine drainage in Illinois"},"id":1}],"lastModifiedDate":"2012-02-02T00:05:27","indexId":"wsp2078","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":341,"text":"Water Supply Paper","code":"WSP","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2078","title":"Some chemical characteristics of mine drainage in Illinois","docAbstract":"Surface mining for coal in Illinois has affected runoff from the mined areas and altered water quality in the streams. Average annual sulfate loads in streams are 3,000-4,000 tons per square mile of mined land in the Big Muddy and Saline River basins in southern Illinois. Relatively high concentrations of dissolved aluminum, arsenic, chromium, copper, iron, manganese, and zinc are commonly associated with concentrations of sulfate greater than about 2,000 milligrams per liter.","language":"ENGLISH","publisher":"U.S. G.P.O.,","doi":"10.3133/wsp2078","usgsCitation":"Toler, L., 1982, Some chemical characteristics of mine drainage in Illinois: U.S. Geological Survey Water Supply Paper 2078, iv, 47 p. :ill., maps ;24 cm., https://doi.org/10.3133/wsp2078.","productDescription":"iv, 47 p. :ill., maps ;24 cm.","costCenters":[],"links":[{"id":138761,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wsp/2078/report-thumb.jpg"},{"id":29389,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wsp/2078/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49e9e4b07f02db5e94fa","contributors":{"authors":[{"text":"Toler, L.G.","contributorId":98710,"corporation":false,"usgs":true,"family":"Toler","given":"L.G.","email":"","affiliations":[],"preferred":false,"id":145864,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":11467,"text":"ofr82801 - 1982 - Digital data base application to porphyry copper mineralization in Alaska; case study summary","interactions":[],"lastModifiedDate":"2017-03-28T14:59:34","indexId":"ofr82801","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1982","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":"82-801","title":"Digital data base application to porphyry copper mineralization in Alaska; case study summary","docAbstract":"The purpose of this report is to summarize the progress in use of digital image analysis techniques in developing a conceptual model for assessing porphyry copper mineral potential. The study area consists of approximately the southern one-half of the 1? by 3? Nabesna quadrangle in east-central Alaska. The digital geologic data base consists of data compiled under the Alaskan Mineral Resource Assessment Program (AMRAP) as well as digital elevation data and Landsat spectral reflectance data from the Multispectral Scanner System. The digital data base used to develop and implement a conceptual model for porphyry-type copper mineralization consisted of 16 original data types and 18 derived data sets formatted in a grid-cell (raster) structure and registered to a map base in the Universal Transverse Mercator (UTM) projection. Minimum curvature and inverse distance squared interpolation techniques were used to generate continuous surfaces from sets of irregularly spaced data points. Processing requirements included: (1) merging or overlaying of data sets, (2) display and color coding of maps and images, (3) univariate and multivariate statistical analyses, and (4) compound overlaying operations. Data sets were merged and processed to create stereoscopic displays of continuous surfaces. The ratio of several data sets were calculated to evaluate relative variations and to enhance the display of surface alteration (gossans). Factor analysis and principal components analysis techniques were used to determine complex relationships and correlations between data sets. The resultant model consists of 10 parameters that identify three areas most likely to contain porphyry copper mineralization; two of these areas are known occurrences of mineralization and the third is not well known. Field studies confirmed that the three areas identified by the model have significant copper potential.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr82801","usgsCitation":"Trautwein, C.M., Greenlee, D.D., and Orr, D.G., 1982, Digital data base application to porphyry copper mineralization in Alaska; case study summary: U.S. Geological Survey Open-File Report 82-801, iii, 17 p., https://doi.org/10.3133/ofr82801.","productDescription":"iii, 17 p.","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":145094,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1982/0801/report-thumb.jpg"},{"id":39332,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1982/0801/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b32e4b07f02db6b4653","contributors":{"authors":[{"text":"Trautwein, Charles M. trautwein@usgs.gov","contributorId":2861,"corporation":false,"usgs":true,"family":"Trautwein","given":"Charles","email":"trautwein@usgs.gov","middleInitial":"M.","affiliations":[],"preferred":true,"id":163183,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Greenlee, David D.","contributorId":59802,"corporation":false,"usgs":true,"family":"Greenlee","given":"David","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":163185,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Orr, Donald G.","contributorId":6454,"corporation":false,"usgs":true,"family":"Orr","given":"Donald","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":163184,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":11420,"text":"ofr821052 - 1982 - Preliminary report on the geology and gold mineralization of the Gold Basin-Lost Basin mining districts, Mohave County, Arizona","interactions":[{"subject":{"id":11420,"text":"ofr821052 - 1982 - Preliminary report on the geology and gold mineralization of the Gold Basin-Lost Basin mining districts, Mohave County, Arizona","indexId":"ofr821052","publicationYear":"1982","noYear":false,"title":"Preliminary report on the geology and gold mineralization of the Gold Basin-Lost Basin mining districts, Mohave County, Arizona"},"predicate":"SUPERSEDED_BY","object":{"id":6409,"text":"pp1361 - 1987 - Geology and gold mineralization of the Gold Basin-Lost Basin mining districts, Mohave County, Arizona","indexId":"pp1361","publicationYear":"1987","noYear":false,"title":"Geology and gold mineralization of the Gold Basin-Lost Basin mining districts, Mohave County, Arizona"},"id":1}],"supersededBy":{"id":6409,"text":"pp1361 - 1987 - Geology and gold mineralization of the Gold Basin-Lost Basin mining districts, Mohave County, Arizona","indexId":"pp1361","publicationYear":"1987","noYear":false,"title":"Geology and gold mineralization of the Gold Basin-Lost Basin mining districts, Mohave County, Arizona"},"lastModifiedDate":"2025-08-04T15:02:59.908005","indexId":"ofr821052","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1982","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":"82-1052","title":"Preliminary report on the geology and gold mineralization of the Gold Basin-Lost Basin mining districts, Mohave County, Arizona","docAbstract":"<p>The Gold Basin-Lost Basin mining districts are adjacent to each other in northwestern Arizona, south of Lake Mead, and just west of the Grand Wash Cliffs. Most recorded production from lode deposits is credited to mines in the Gold Basin district, which is in the southern White Hills, whereas the bulk of the placer production has been from placers worked along the eastern flank of the Lost Basin range, about 16 km to the northeast across Hualapai Valley. Gold in quartz veins apparently was first discovered in the 1870's. Recorded production from the districts between 1901 and 1942 includes 13,508 oz gold and 6,857 oz silver, and this recorded production has a dollar value of about $359,000 of which 98 percent is credited to gold.</p><p>Most known occurrences of lode gold in the districts are associated with widespread quartz-cored pegmatite-vein systems, presumably emplaced episodically during Proterozoic X, Proterozoic Y, and Late Cretaceous time into Proterozoic X metamorphic and igneous rocks. The bulk of the veins apparently were emplaced during the Late Cretaceous, and they were localized along both high- and low-angle structures in the Proterozoic X terrane. These veins appear to be associated genetically with presumably Late Cretaceous, two-mica magmatism. A Late Cretaceous two-mica monzogranite crops out in an approximately 4 to 5 km<sup>2</sup> area in the southern part of the Gold Basin district and includes some facies of episyenite. Some gold is found also in small episyenitic alteration pipes, or in veins caught up tectonically along a regionally extensive, low-angle detachment surface which crops out prominently in the southern White Hills, and has been traced for at least 30 km along the western flank of the White Hills.</p><p>Hydrothermal micas from selected veins in the districts give K-Ar ages of 822, 712, 69, 68, and 65 m.y. (million years), and from the pipes, ages of 130 and 127 m.y. The oldest ages (822 and 712 m.y.) presumably reflect resetting of veins that probably were emplaced penecontemporaneous with emplacement of the 1,400-m.y. granite of Gold Butte, which crops out just to the north of Lake Mead. The latter ages (130 and 127 m.y.) must reflect either the presence of excess radiogenic argon in the hydrothermal environment of the evolving pipes, or contamination of the dated mineral separates by Proterozoic mica and (or) feldspar. Primary white mica from the two-mica monzogranite gives a K-Ar age of 72 m.y..</p><p>Most occurrences of gold in the veins and pipes probably reflect either remobilization of gold from gold-bearing, near-surface Proterozoic source areas, or anatectic incorporation of gold into Late Cretaceous, two-mica magmas from very deep gold-bearing Proterozoic sources. Deposition of gold occurred in a mesothermal environment during the galena-, chalcopyrite-, ferroan-carbonate-bearing stages of the veins. Homogenization studies of fluid inclusions prominent in the veins and pipes yield temperatures mostly in the range 150 to 280°C. Early-stage, trapping temperatures at the pipes probably were about 330°C and pressures in the range 500 to 700 bars can be inferred. Fluids were moderately saline, mostly 4 to 16 weight percent NaC1 equivalent, nonboiling, and also contain appreciable amounts of carbon dioxide and, in places, fluorine. Such fluids associated with the deposition of gold in these districts largely bridge the fluid composition interval between many other epithermal precious-metal and porphyry coper deposits.</p><p>Approximately 350 compositional analyses obtained from native-gold samples from 20 mines in the Gold Basin district and 48 veins in the Lost Basin district show silver contents that range from 6 to approximately 50 weight percent, and copper from 0.01 to 0.5 weight percent. Metal zonation and possible relation to a porphyry copper system at depth can be inferred from some of these chemical data. The differences in the composition of placer gold from 24 occurrences in the Lost Basin district from that of nearby lode sources suggest that other sources contributed gold to the placers or that locally derived grains were enriched by oxidation and weathering of the lodes.<br></p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr821052","usgsCitation":"Theodore, T., Blair, W.N., Nash, J.T., and McKee, E.H., 1982, Preliminary report on the geology and gold mineralization of the Gold Basin-Lost Basin mining districts, Mohave County, Arizona: U.S. Geological Survey Open-File Report 82-1052, Report: x, 322 p.; 1 Plates: 34.44 x 28.31 inches; 3 Figures: 23.46 x 21.32 inches or smaller, https://doi.org/10.3133/ofr821052.","productDescription":"Report: x, 322 p.; 1 Plates: 34.44 x 28.31 inches; 3 Figures: 23.46 x 21.32 inches or 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Ted G.","contributorId":57840,"corporation":false,"usgs":true,"family":"Theodore","given":"Ted G.","affiliations":[],"preferred":false,"id":163111,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Blair, Will N.","contributorId":56623,"corporation":false,"usgs":true,"family":"Blair","given":"Will","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":163110,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Nash, J. Thomas","contributorId":26306,"corporation":false,"usgs":true,"family":"Nash","given":"J.","email":"","middleInitial":"Thomas","affiliations":[],"preferred":false,"id":163109,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"McKee, Edwin H. mckee@usgs.gov","contributorId":3728,"corporation":false,"usgs":true,"family":"McKee","given":"Edwin","email":"mckee@usgs.gov","middleInitial":"H.","affiliations":[],"preferred":true,"id":163108,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":11205,"text":"ofr82942 - 1982 - Drilling results at the Farah Garan ancient mine, southwestern Saudi Arabia","interactions":[],"lastModifiedDate":"2012-02-02T00:06:36","indexId":"ofr82942","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1982","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":"82-942","title":"Drilling results at the Farah Garan ancient mine, southwestern Saudi Arabia","docAbstract":"The Farah Garan ancient mine is located at fat 17?41'00'' N., long 43?38'15'' E. in the southwestern part of the Kingdom of Saudi Arabia. Three diamond drill holes intersected base-metal sulfides, which are present both as conformable layers in Precambrian tuffaceous volcanic rocks and as fracture fillings, irregularly shaped masses, disseminations, and clots in intensely hydrothermally altered and brecciated fault zones. The sulfides probably formed through volcanic processes in a shallow-marine environment and subsequently were greatly modified by tectonism and hydrothermal activity. \r\n\r\nDrill hole F.G.-1 intersected sparse base and precious metal minerals along a length of 30 m; several narrow, isolated zones contain as much as 22 grams per metric ton (g/t) silver, 1.25 percent copper, and 3.10 percent zinc. Drill hole F.G.-2 intersected low-grade base and precious metal minerals along a length of 50 m. Within this zone, a 10-m interval contains an average of 0.15 g/t gold, 10.7 g/t silver, and 0.86 percent zinc. Drill hole F.G.-3 cut commercial-grade base and precious metal minerals in a 3.55-m interval that contains an average of 20.06 g/t gold, 32.75 g/t silver, and 6.28 percent zinc. \r\n\r\nAdditional exploration, including drilling and laboratory studies, is recommended to further define potential tonnages of base and precious metals intersected in drill hole F.G.-3 and to learn more about their genesis and mineral form. \r\n\r\nArsenic and antimony are locally abundant in both drillcore and surface samples. Because of its weathering characteristics, mobility, and association with precious metals, arsenic commonly is a pathfinder for gold. Approximately 1,100 splits of surface samples collected in the Farah Garan area are stored at the Directorate General of Mineral Resources-U. S. Geological Survey chemical laboratory in Jiddah, and any further exploration should include assaying these samples for arsenic and antimony by wet-chemical analysis ?","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/ofr82942","usgsCitation":"Smith, C.W., and Mawad, M.M., 1982, Drilling results at the Farah Garan ancient mine, southwestern Saudi Arabia: U.S. Geological Survey Open-File Report 82-942, iii, 47 p. :ill., maps ;28 cm., https://doi.org/10.3133/ofr82942.","productDescription":"iii, 47 p. :ill., maps ;28 cm.","costCenters":[],"links":[{"id":144477,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1982/0942/report-thumb.jpg"},{"id":38969,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1982/0942/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":38970,"rank":401,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1982/0942/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":38971,"rank":402,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1982/0942/plate-3.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":38972,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1982/0942/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a5ee4b07f02db633e10","contributors":{"authors":[{"text":"Smith, Charles W.","contributorId":41431,"corporation":false,"usgs":true,"family":"Smith","given":"Charles","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":162727,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mawad, Mustafa M.","contributorId":43779,"corporation":false,"usgs":true,"family":"Mawad","given":"Mustafa","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":162728,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":6114,"text":"pp1221 - 1982 - Tertiary volcanic rocks and uranium in the Thomas Range and northern Drum Mountains, Juab County, Utah","interactions":[{"subject":{"id":40313,"text":"ofr79176 - 1979 - Coal resource occurrence and coal development potential maps of the Bowman Flat Quadrangle, Johnson County, Wyoming","indexId":"ofr79176","publicationYear":"1979","noYear":false,"title":"Coal resource occurrence and coal development potential maps of the Bowman Flat Quadrangle, Johnson County, Wyoming"},"predicate":"SUPERSEDED_BY","object":{"id":6114,"text":"pp1221 - 1982 - Tertiary volcanic rocks and uranium in the Thomas Range and northern Drum Mountains, Juab County, Utah","indexId":"pp1221","publicationYear":"1982","noYear":false,"title":"Tertiary volcanic rocks and uranium in the Thomas Range and northern Drum Mountains, Juab County, Utah"},"id":1}],"lastModifiedDate":"2012-02-02T00:05:58","indexId":"pp1221","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":331,"text":"Professional Paper","code":"PP","onlineIssn":"2330-7102","printIssn":"1044-9612","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"1221","title":"Tertiary volcanic rocks and uranium in the Thomas Range and northern Drum Mountains, Juab County, Utah","docAbstract":"The Thomas Range and northern Drum Mountains have a history of volcanism, faulting, and mineralization that began about 42 m.y. (million years) ago. Volcanic activity and mineralization in the area can be divided into three stages according to the time-related occurrence of rock types, trace-element associations, and chemical composition of mineral deposits. Compositions of volcanic rocks changed abruptly from rhyodacite-quartz latite (42-39 m.y. ago) to rhyolite (38-32 m.y. ago) to alkali rhyolite (21 and 6-7 m.y. ago); these stages correspond to periods of chalcophile and siderophile metal mineralization, no mineralization(?), and lithophile metal mineralization, respectively. Angular unconformities record episodes of cauldron collapse and block faulting between the stages of volcanic activity and mineralization. The youngest angular unconformity formed between 21 and 7 m.y. ago during basin-and-range faulting. \r\n\r\nEarly rhyodacite-quartz latite volcanism from composite volcanoes and fissures produced flows, breccias, and ash-flow tuff of the Drum Mountains Rhyodacite and Mt. Laird Tuff. Eruption of the Mt. Laird Tuff about 39 m.y. ago from an area north of Joy townsite was accompanied by collapse of the Thomas caldera. Part of the roof of the magma chamber did not collapse, or the magma was resurgent, as is indicated by porphyry dikes and plugs in the Drum Mountains. Chalcophile and siderophile metal mineralization, resulting in deposits of copper, gold, and manganese, accompanied early volcanism. \r\n\r\nTe middle stage of volcanic activity was characterized by explosive eruption of rhyolitic ash-flow tuffs and collapse of the Dugway Valley cauldron. Eruption of the Joy Tuff 38 m.y. ago was accompanied by subsidence of this cauldron and was followed by collapse and sliding of Paleozoic rocks from the west wall of the cauldron. Landslides in The Dell were covered by the Dell Tuff, erupted 32 m.y. ago from an unknown source to the east. An ash flow of the Needles Range(?) Formation was erupted 30-31 m.y. ago from an unknown source. Mineralization probably did not occur during the rhyolitic stage of volcanism. \r\n\r\nThe last stage of volcanism was contemporaneous with basin-and-range faulting and was characterized by explosive eruption of ash and pumice, forming stratified tuff, and by quiet eruption of alkali rhyolite as viscous flows and domes. The first episode of alkali rhyolite volcanism deposited the beryllium tuff and porphyritic rhyolite members of the Spor Mountain Formation 21 m.y. ago. After a period of block faulting, the stratified tuff and alkali rhyolite of the Topaz Mountain Rhyolite were erupted 6-7 m.y. ago along faults and fault intersections. Erosion of Spor Mountain, as well as explosive eruptions through dolomite, provided abundant dolomite detritus to the beryllium tuff member. The alkali rhyolite of both formations is fluorine rich, as is evident from abundant topaz, and contains anomalous amounts of lithophile metals. Alkali rhyolite volcanism was accompanied by lithophile metal mineralization which deposited fluorite, beryllium, and uranium. \r\n\r\nThe structure of the area is dominated by the Thomas caldera and the younger Dugway Valley cauldron, which is nested within the Thomas caldera; the Thomas caldera is surrounded by a rim of Paleozoic rocks at Spor Mountain and Paleozoic to Precambrian rocks in the Drum Mountains. The Joy fault and Dell fault system mark the ring-fracture zone of the Thomas caldera. These structural features began to form about 39 m.y. ago during eruption of the Mt. Laird Tuff and caldera subsidence. The Dugway Valley cauldron sank along a series of steplike normal faults southeast of Topaz Mountain in response to collapse of the magma chamber of the Joy Tuff. Caldera structure was modified by block faulting between 21 and 7 m.y. ago, the time of widespread extensional faulting in the Basin and Range Province. Vents erupted alkali rhyolite 6-7 m.y. ago along basin-and-range faults. \r","language":"ENGLISH","publisher":"U.S. G.P.O.,","doi":"10.3133/pp1221","usgsCitation":"Lindsey, D.A., 1982, Tertiary volcanic rocks and uranium in the Thomas Range and northern Drum Mountains, Juab County, Utah: U.S. Geological Survey Professional Paper 1221, 71 p., https://doi.org/10.3133/pp1221.","productDescription":"71 p.","costCenters":[],"links":[{"id":117281,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/pp/1221/report-thumb.jpg"},{"id":33171,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/pp/1221/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad9e4b07f02db684cd7","contributors":{"authors":[{"text":"Lindsey, David A. 0000-0002-9466-0899 dlindsey@usgs.gov","orcid":"https://orcid.org/0000-0002-9466-0899","contributorId":773,"corporation":false,"usgs":true,"family":"Lindsey","given":"David","email":"dlindsey@usgs.gov","middleInitial":"A.","affiliations":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":152143,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":11099,"text":"ofr801217 - 1982 - Ground-water quality downgradient from copper-ore milling wastes at Weed Heights, Lyon County, Nevada","interactions":[],"lastModifiedDate":"2012-02-02T00:06:26","indexId":"ofr801217","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1982","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":"80-1217","title":"Ground-water quality downgradient from copper-ore milling wastes at Weed Heights, Lyon County, Nevada","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/ofr801217","usgsCitation":"Seitz, H., Van Denburgh, A.S., and La Camera, R., 1982, Ground-water quality downgradient from copper-ore milling wastes at Weed Heights, Lyon County, Nevada: U.S. Geological Survey Open-File Report 80-1217, vi, 51 p. :ill., maps ;28 cm., https://doi.org/10.3133/ofr801217.","productDescription":"vi, 51 p. :ill., maps ;28 cm.","costCenters":[],"links":[{"id":143165,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1980/1217/report-thumb.jpg"},{"id":38866,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1980/1217/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4aa8e4b07f02db667327","contributors":{"authors":[{"text":"Seitz, H.R.","contributorId":106894,"corporation":false,"usgs":true,"family":"Seitz","given":"H.R.","email":"","affiliations":[],"preferred":false,"id":162539,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Van Denburgh, A. S.","contributorId":23928,"corporation":false,"usgs":true,"family":"Van Denburgh","given":"A.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":162537,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"La Camera, R.J.","contributorId":83932,"corporation":false,"usgs":true,"family":"La Camera","given":"R.J.","affiliations":[],"preferred":false,"id":162538,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":18948,"text":"ofr82618 - 1982 - Geologic report and recommendations for the cobalt mission to Morocco sponsored by The Trade and Development Program of the International Development Cooperation Agency","interactions":[],"lastModifiedDate":"2012-02-02T00:07:26","indexId":"ofr82618","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1982","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":"82-618","title":"Geologic report and recommendations for the cobalt mission to Morocco sponsored by The Trade and Development Program of the International Development Cooperation Agency","docAbstract":"A mission sponsored by the Trade and Development Program (TDP) of the International Development Cooperation Agency (IDCA) went to Morocco to evaluate the possibility of finding additional sources of cobalt in that country, as well as other types of mineralization. Information obtained during this trip shows Morocco to be a country for which much geologic information is available and in which there are many favorable target areas for future exploration. Work in the Bou Azzer district (Morocco's principal cobalt district) shows that much excellent geologic work has been done in searching for additional deposits. However, a number of useful approaches to locate cobalt have not been tried, and their use might be successful. The potential for undiscovered deposits in the Bou Azzer region seems very high. \r\n\r\nThe cobalt mineralization in the Siroua uplift is different from that in the Bou Azzer district. However, geologic similarities between the two areas suggest that a genetic link may exist between the two types of mineralization. This further indicates that cobalt deposits of the Bou Azzer types might be present in the Siroua region. \r\n\r\nExamination of the Bleida copper mine shows it to be a well-exposed volcanic hosted stratabound copper deposit. Large unexplored areas containing similar rocks occur near this deposit and may contain as yet undiscovered copper mineralization.","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/ofr82618","usgsCitation":"Foose, M.P., and Rossman, D.L., 1982, Geologic report and recommendations for the cobalt mission to Morocco sponsored by The Trade and Development Program of the International Development Cooperation Agency: U.S. Geological Survey Open-File Report 82-618, 1 v. 66p. :ill., maps ;28 cm., https://doi.org/10.3133/ofr82618.","productDescription":"1 v. 66p. :ill., maps ;28 cm.","costCenters":[],"links":[{"id":150584,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1982/0618/report-thumb.jpg"},{"id":48345,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1982/0618/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae0e4b07f02db688318","contributors":{"authors":[{"text":"Foose, M. P.","contributorId":97075,"corporation":false,"usgs":true,"family":"Foose","given":"M.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":180038,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rossman, Darwin L.","contributorId":94663,"corporation":false,"usgs":true,"family":"Rossman","given":"Darwin","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":180037,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":10574,"text":"ofr82791 - 1982 - Geochemical orientation for mineral exploration in the Hashemite Kingdom of Jordan","interactions":[],"lastModifiedDate":"2012-02-02T00:06:28","indexId":"ofr82791","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1982","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":"82-791","title":"Geochemical orientation for mineral exploration in the Hashemite Kingdom of Jordan","docAbstract":"This report is a supplement to previous accounts of geochemical exploration conducted in the Hashemite Kingdom of Jordan by the Natural Resources Authority of the Royal Government of Jordan and the U.S. Geological Survey. The field work on which this report is based was sponsored by the U.S. Agency for International Development, U.S. Department of State. Procedures used in collecting various kinds of rocks, ores, slags, eluvial and alluvial sediments, heavy-mineral concentrates, and organic materials for use as geochemical sample media are summarized, as are the laboratory procedures followed for the analysis of these sample materials by semiquantitative spectrographic, atomic absorption, fluorometric, and X-ray diffraction methods. Geochemical evaluations of the possibilities for economic mineral deposits in certain areas are presented. \r\n\r\nThe results of these preliminary investigations open concepts for further use in geochemical exploration in the search for metallic mineral deposits in Jordan. Perhaps the most desirable new activity would be hydrogeochemical exploration for uranium and base metals, accompanied by interpretation of such remote-sensing data as results of airborne radiometric surveys and computer-enhanced LANDSAT imagery. For more conventional approaches to geochemical exploration, however, several fundamental problems regarding proper choice of geochemical sample media for different geologic and geographic parts of the Country must be solved before effective surveys can be made. The present results also show that such common geochemical exploration techniques as the determination of the trace-element contents of soils, plant ash, and slags have direct application also toward the resolution of several archaeological problems in Jordan. These include the relation of trace-elements chemistry of local soils to the composition of botanic remains, the trace-elements composition of slags to the technological development of the extractive metallurgy of copper and iron in the region, and the use of charcoal from slags for the C-14 dating of periods of archaeometallurgical activity. Less directly, interpretations based on the distribution in time and space of the archaeometallurgical activities of the region might add to the knowledge of early climatic conditions and vegetative cover of the area.","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/ofr82791","usgsCitation":"Overstreet, W., Grimes, D.J., and Seitz, J.F., 1982, Geochemical orientation for mineral exploration in the Hashemite Kingdom of Jordan: U.S. Geological Survey Open-File Report 82-791, viii, 255 p., ill., map ;28 cm., https://doi.org/10.3133/ofr82791.","productDescription":"viii, 255 p., ill., map ;28 cm.","costCenters":[],"links":[{"id":144284,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1982/0791/report-thumb.jpg"},{"id":38406,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1982/0791/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b24e4b07f02db6ae5ed","contributors":{"authors":[{"text":"Overstreet, W.C.","contributorId":105294,"corporation":false,"usgs":true,"family":"Overstreet","given":"W.C.","email":"","affiliations":[],"preferred":false,"id":161623,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Grimes, D. J.","contributorId":73575,"corporation":false,"usgs":true,"family":"Grimes","given":"D.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":161621,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Seitz, J. F.","contributorId":92250,"corporation":false,"usgs":true,"family":"Seitz","given":"J.","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":161622,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70011910,"text":"70011910 - 1982 - Comparison of hot hydroxylamine hydrochloride and oxalic acid leaching of stream sediment and coated rock samples as anomaly enhancement techniques","interactions":[],"lastModifiedDate":"2025-04-08T17:00:10.439522","indexId":"70011910","displayToPublicDate":"1982-09-03T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2302,"text":"Journal of Geochemical Exploration","active":true,"publicationSubtype":{"id":10}},"title":"Comparison of hot hydroxylamine hydrochloride and oxalic acid leaching of stream sediment and coated rock samples as anomaly enhancement techniques","docAbstract":"<p><span>A hot hydroxylamine hydrochloride (H-Hxl) extraction in 25% acetic acid is compared with the commonly used oxalic acid extraction as a method of anomaly enhancement for Cu and Zn in samples from two very different metal deposits and climatic environments. Results obtained on minus-80-mesh stream sediments from an area near the Magruder massive sulfide deposit in Lincoln County, Georgia, where the climate is humid subtropical, indicate that H-Hxl enhances the anomaly for Cu by a factor of 2 and for Zn by a factor of 1.5, compared to the oxalic method. Analyses of Fe oxide-coated rock samples from outcrops overlying the North Silver Bell porphyry copper deposit near Tucson, Arizona, where the climate is semi-arid to arid, indicate that both techniques effectively outline the zones of hydrothermal alteration.</span></p><p><span>The H-Hxl extraction can also perform well in high-carbonate or high-clay environments, where other workers have suggested that oxalic acid is not very effective. Therefore, the H-Hxl method is recommended for general exploration use.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/0375-6742(82)90018-8","usgsCitation":"Filipek, L., Chao, T.T., and Theobald, P.K., 1982, Comparison of hot hydroxylamine hydrochloride and oxalic acid leaching of stream sediment and coated rock samples as anomaly enhancement techniques: Journal of Geochemical Exploration, v. 17, no. 1, p. 35-47, https://doi.org/10.1016/0375-6742(82)90018-8.","productDescription":"13 p.","startPage":"35","endPage":"47","costCenters":[],"links":[{"id":221621,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"17","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f869e4b0c8380cd4d0ae","contributors":{"authors":[{"text":"Filipek, L.H.","contributorId":58392,"corporation":false,"usgs":true,"family":"Filipek","given":"L.H.","email":"","affiliations":[],"preferred":false,"id":362265,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Chao, T. T.","contributorId":31900,"corporation":false,"usgs":true,"family":"Chao","given":"T.","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":362264,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Theobald, P. K. Jr.","contributorId":70398,"corporation":false,"usgs":true,"family":"Theobald","given":"P.","suffix":"Jr.","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":362266,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70011544,"text":"70011544 - 1982 - Micronutrients and kelp cultures: Evidence for cobalt and manganese deficiency in Southern California deep seawater","interactions":[],"lastModifiedDate":"2025-12-11T17:10:34.539187","indexId":"70011544","displayToPublicDate":"1982-06-11T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3338,"text":"Science","active":true,"publicationSubtype":{"id":10}},"title":"Micronutrients and kelp cultures: Evidence for cobalt and manganese deficiency in Southern California deep seawater","docAbstract":"<p><span id=\"_mce_caret\" data-mce-bogus=\"1\" data-mce-type=\"format-caret\"><span>It has been suggested that naturally occurring copper and zinc concentrations in deep seawater are toxic to marine organisms when the free ion forms are overabundant. The effects of micronutrients on the growth of gametophytes of the ecologically and commercially significant giant kelp (</span><i>Macrocystis pyrifera</i><span>) were studied in defined media. The results indicate that toxic copper and zinc ion concentrations as well as cobalt and manganese deficiencies may be among the factors controlling the growth of marine organisms in nature.</span></span></p>","language":"English","publisher":"American Association for the Advancement of Science","doi":"10.1126/science.216.4551.1219","issn":"00368075","usgsCitation":"Kuwabara, J., 1982, Micronutrients and kelp cultures: Evidence for cobalt and manganese deficiency in Southern California deep seawater: Science, v. 216, no. 4551, p. 1219-1221, https://doi.org/10.1126/science.216.4551.1219.","productDescription":"3 p.","startPage":"1219","endPage":"1221","costCenters":[],"links":[{"id":220914,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"Southern California","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -121.64359252884472,\n              35.40141873488919\n            ],\n            [\n              -121.64359252884472,\n              32.54987390467508\n            ],\n            [\n              -114.3674275145816,\n              32.54987390467508\n            ],\n            [\n              -114.3674275145816,\n              35.40141873488919\n            ],\n            [\n              -121.64359252884472,\n              35.40141873488919\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"216","issue":"4551","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a568ae4b0c8380cd6d674","contributors":{"authors":[{"text":"Kuwabara, J.S.","contributorId":57905,"corporation":false,"usgs":true,"family":"Kuwabara","given":"J.S.","email":"","affiliations":[],"preferred":false,"id":361365,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70011860,"text":"70011860 - 1982 - Hydrogeochemical prospecting for porphyry copper deposits in the tropical-marine climate of Puerto Rico","interactions":[],"lastModifiedDate":"2025-04-09T15:02:15.596022","indexId":"70011860","displayToPublicDate":"1982-06-04T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2302,"text":"Journal of Geochemical Exploration","active":true,"publicationSubtype":{"id":10}},"title":"Hydrogeochemical prospecting for porphyry copper deposits in the tropical-marine climate of Puerto Rico","docAbstract":"<p>A hydrogeochemical survey utilizing waters from streams and springs was conducted in the area of two known porphyry copper deposits in the tropical-marine climate of westcentral Puerto Rico. The most important pathfinder for regional hydrogeochemical surveys is sulfate which reflects the associated pyrite mineralization. Because of increased mobility due to intense chemical weathering and the low pH environment, dissolved copper can also be used as a pathfinder for regional surveys and has the advantage of distinguishing barren pyrite from pyrite associated with copper mineralization. For follow-up surveys, the most important pathfinders are copper, sulfate, pH, zinc, and fluoride. High concentrations of dissolved copper and moderate concentrations of sulfate is a diagnostic indication of nearby sources of copper minerals. </p><p>An understanding of the geochemical processes taking place in the streambeds and the weathering environment, such as the precipitation of secondary copper minerals, contributes to the interpretation of the geochemical data and the selection of the most favorable areas for further exploration.&nbsp;</p>","largerWorkType":{"id":2,"text":"Article"},"language":"English","publisher":"Elsevier","doi":"10.1016/0375-6742(82)90011-5","usgsCitation":"Miller, W.R., Ficklin, W.H., and Learned, R.E., 1982, Hydrogeochemical prospecting for porphyry copper deposits in the tropical-marine climate of Puerto Rico: Journal of Geochemical Exploration, v. 16, no. 3, p. 217-233, https://doi.org/10.1016/0375-6742(82)90011-5.","productDescription":"17 p.","startPage":"217","endPage":"233","costCenters":[],"links":[{"id":220796,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","otherGeospatial":"Puerto 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