The U.S. Geological Survey (USGS) made a reconnaissance geochemical survey of the Adams Gap and Shinbone Creek Roadless Areas (fig. 1) to test for unidentified, indistinct, or unexposed mineral deposits that might be recognized by their geochemical halos or patterns formed by the distribution of trace elements. Similar geochemical surveys based on trace element analyses have been credited with the discovery of many types of ore deposits (Rose and others, 1979). No metallic-mineral deposits are reported in the rocks of the study area, and none were found during the reconnaissance geologic mapping. However, in the vicinity of the study area, the same sequence of rocks contains abandoned prospects for manganese, iron, and pyrite.
\nReports covering the mineral resources of Clay County and vicinity include Brewer (1896) and Adams (1930) on gold, Prouty (1923) on graphite, and Heinrich and Olson (1953) on mica. The mineral resources of the Talladega National Forest were evaluated by Gilbert and Smith (1973). The mineral resource potential of the two roadless areas is detailed in Robinson and others (1983) and an accompanying geologic report is given in Robinson and others (in press).
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Alan","contributorId":84373,"corporation":false,"usgs":true,"family":"Bartow","given":"J.","email":"","middleInitial":"Alan","affiliations":[],"preferred":false,"id":211817,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"McDougall, Kristin A.","contributorId":69146,"corporation":false,"usgs":true,"family":"McDougall","given":"Kristin","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":211816,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":34693,"text":"b1608 - 1984 - Geology along the northwest border zone of the Idaho batholith, northern Idaho","interactions":[],"lastModifiedDate":"2012-02-02T00:09:35","indexId":"b1608","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1984","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":306,"text":"Bulletin","code":"B","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"1608","title":"Geology along the northwest border zone of the Idaho batholith, northern Idaho","language":"ENGLISH","publisher":"U.S. G.P.O.,","doi":"10.3133/b1608","usgsCitation":"Hietanen, A.M., 1984, Geology along the northwest border zone of the Idaho batholith, northern Idaho: U.S. Geological Survey Bulletin 1608, iii, 17 p. :maps ;28 cm., https://doi.org/10.3133/b1608.","productDescription":"iii, 17 p. :maps ;28 cm.","costCenters":[],"links":[{"id":167410,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/bul/1608/report-thumb.jpg"},{"id":62559,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/bul/1608/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4adee4b07f02db6873d2","contributors":{"authors":[{"text":"Hietanen, Anna Martta","contributorId":85579,"corporation":false,"usgs":true,"family":"Hietanen","given":"Anna","email":"","middleInitial":"Martta","affiliations":[],"preferred":false,"id":213419,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":34707,"text":"b1558C - 1984 - Ball clay and bentonite deposits of the central and western Gulf of Mexico Coastal Plain, United States","interactions":[],"lastModifiedDate":"2017-04-25T14:53:59","indexId":"b1558C","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1984","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":306,"text":"Bulletin","code":"B","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"1558","chapter":"C","title":"Ball clay and bentonite deposits of the central and western Gulf of Mexico Coastal Plain, United States","docAbstract":"The Gulf of Mexico Coastal Plain produces approximately 85 percent of the ball clay used in the United States. The best commercial-grade clay deposits are composed of poorly crystalline kaolinite and small amounts of Md illite and (or) smectite. Sand and silt and iron oxide minerals are virtually absent, but quartz is present in the clay-size fraction. The best grade ball clays are found as lenses limited to the Wilcox Group (Paleocene and lower Eocene) and Claiborne Group (middle Eocene). Reserves of ball clay are sufficient for the present, but because of the lenticular nature of the clay bodies, close-spaced drilling, detailed sampling, mineralogic analyses, and ceramic testing are needed to prove future reserves.
Approximately 11 percent of the total bentonite produced in the United States comes from the Gulf Coast region. The commercial-grade bentonites are composed primarily of smectite with little or no Md illite and kaolinite. The nonclay impurities are quartz, feldspar, muscovite, biotite, calcite, dolomite, gypsum, and heulandite. Commercial bentonites occur in the Upper Cretaceous formations in Alabama and Mississippi, in Paleocene formations in Mississippi and Tennessee, and in Eocene and Miocene formations in Texas. The demand for low-swelling bentonite of the Gulf Coastal Plain has not increased along with the demand for swelling bentonite; therefore the reserves are adequate.
","largerWorkTitle":"Contributions to the geology of mineral deposits","language":"English","publisher":"U.S. Government Printing Office","doi":"10.3133/b1558C","usgsCitation":"Hosterman, J.W., 1984, Ball clay and bentonite deposits of the central and western Gulf of Mexico Coastal Plain, United States: U.S. Geological Survey Bulletin 1558, Report: 22 p; Plate: 26.21 x 25.33 inches, https://doi.org/10.3133/b1558C.","productDescription":"Report: 22 p; Plate: 26.21 x 25.33 inches","costCenters":[],"links":[{"id":167812,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/bul/1558c/report-thumb.jpg"},{"id":62569,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/bul/1558c/report.pdf","text":"Report","size":"454.13 kB","linkFileType":{"id":1,"text":"pdf"},"description":"Report"},{"id":340340,"rank":2,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/bul/1558c/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Alabama, Arkansas, Kentucky, Louisiana, Mississippi, Tennessee, Texas","otherGeospatial":"Gulf Coastal Plain, Mississippi Embayment","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -88.154296875,\n 36.155617833818525\n ],\n [\n -88.330078125,\n 36.84446074079564\n ],\n [\n -89.09912109375,\n 37.09023980307208\n ],\n [\n -89.69238281249999,\n 36.86204269508728\n ],\n [\n -90.81298828125,\n 36.59788913307022\n ],\n [\n -91.7138671875,\n 36.33282808737917\n ],\n [\n -92.74658203125,\n 35.29943548054545\n ],\n [\n -94.06494140625,\n 33.8339199536547\n ],\n [\n -95.2294921875,\n 33.41310221370827\n ],\n [\n -97.3828125,\n 33.063924198120645\n ],\n [\n -98.6572265625,\n 32.509761735919426\n ],\n [\n -100.01953125,\n 31.372399104880525\n ],\n [\n -100.65673828125,\n 30.486550842588485\n ],\n [\n -101.07421875,\n 29.57345707301757\n ],\n [\n -100.72265625,\n 29.22889003019423\n ],\n [\n -100.2392578125,\n 28.22697003891834\n ],\n [\n -99.404296875,\n 27.449790329784214\n ],\n [\n -99.00878906249999,\n 26.352497858154024\n ],\n [\n -97.470703125,\n 25.878994400196202\n ],\n [\n -96.767578125,\n 26.194876675795218\n ],\n [\n -95.49316406249999,\n 26.62781822639305\n ],\n [\n -92.98828125,\n 28.110748760633534\n ],\n [\n -87.6708984375,\n 28.69058765425071\n ],\n [\n -85.8251953125,\n 29.53522956294847\n ],\n [\n -86.1328125,\n 31.87755764334002\n ],\n [\n -87.8466796875,\n 32.62087018318113\n ],\n [\n -88.5498046875,\n 34.52466147177172\n ],\n [\n -88.154296875,\n 36.155617833818525\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a82e4b07f02db64aa19","contributors":{"authors":[{"text":"Hosterman, John W.","contributorId":48962,"corporation":false,"usgs":true,"family":"Hosterman","given":"John","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":213442,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":33551,"text":"b1634 - 1984 - Remote monitoring of processes that shape desert surfaces; the Desert Winds project","interactions":[],"lastModifiedDate":"2012-02-02T00:09:22","indexId":"b1634","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1984","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":306,"text":"Bulletin","code":"B","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"1634","title":"Remote monitoring of processes that shape desert surfaces; the Desert Winds project","language":"ENGLISH","publisher":"U.S. G.P.O.,","doi":"10.3133/b1634","usgsCitation":"McCauley, J., Breed, C.S., Helm, P.J., Billingsley, G.H., MacKinnon, D.J., Grolier, M., and McCauley, C., 1984, Remote monitoring of processes that shape desert surfaces; the Desert Winds project: U.S. Geological Survey Bulletin 1634, iv, 19 p. :ill., maps ;28 cm., https://doi.org/10.3133/b1634.","productDescription":"iv, 19 p. :ill., maps ;28 cm.","costCenters":[],"links":[{"id":163943,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/bul/1634/report-thumb.jpg"},{"id":61444,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/bul/1634/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac8e4b07f02db67bf5a","contributors":{"authors":[{"text":"McCauley, J.F.","contributorId":26310,"corporation":false,"usgs":true,"family":"McCauley","given":"J.F.","email":"","affiliations":[],"preferred":false,"id":211524,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Breed, C. S.","contributorId":39809,"corporation":false,"usgs":true,"family":"Breed","given":"C.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":211525,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Helm, P. J.","contributorId":72813,"corporation":false,"usgs":true,"family":"Helm","given":"P.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":211527,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Billingsley, G. H.","contributorId":101265,"corporation":false,"usgs":true,"family":"Billingsley","given":"G.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":211530,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"MacKinnon, D. J.","contributorId":79145,"corporation":false,"usgs":true,"family":"MacKinnon","given":"D.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":211528,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Grolier, M. J.","contributorId":46946,"corporation":false,"usgs":true,"family":"Grolier","given":"M. J.","affiliations":[],"preferred":false,"id":211526,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"McCauley, C.K.","contributorId":97163,"corporation":false,"usgs":true,"family":"McCauley","given":"C.K.","email":"","affiliations":[],"preferred":false,"id":211529,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":35811,"text":"b1539 - 1984 - Submarine canyon deposits, central California coast, and their possible relation to an Eocene low sea-level stand","interactions":[],"lastModifiedDate":"2021-10-26T19:43:39.137457","indexId":"b1539","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1984","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":306,"text":"Bulletin","code":"B","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"1539","title":"Submarine canyon deposits, central California coast, and their possible relation to an Eocene low sea-level stand","docAbstract":"No abstract available.
","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/b1539","usgsCitation":"Seiders, V.M., and Joyce, J.M., 1984, Submarine canyon deposits, central California coast, and their possible relation to an Eocene low sea-level stand: U.S. Geological Survey Bulletin 1539, iii, 16 p., https://doi.org/10.3133/b1539.","productDescription":"iii, 16 p.","costCenters":[],"links":[{"id":390981,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_21622.htm"},{"id":63731,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/bul/1539/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":167713,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/bul/1539/report-thumb.jpg"}],"country":"United States","state":"California","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -121.75,\n 36.079\n ],\n [\n -121.217,\n 36.079\n ],\n [\n -121.217,\n 36.367\n ],\n [\n -121.75,\n 36.367\n ],\n [\n -121.75,\n 36.079\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b05e4b07f02db699bc0","contributors":{"authors":[{"text":"Seiders, Victor M.","contributorId":14372,"corporation":false,"usgs":true,"family":"Seiders","given":"Victor","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":215265,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Joyce, James M.","contributorId":100354,"corporation":false,"usgs":true,"family":"Joyce","given":"James","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":215266,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":34758,"text":"b1558D - 1984 - White clays of Pennsylvania","interactions":[],"lastModifiedDate":"2017-07-05T12:23:48","indexId":"b1558D","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1984","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":306,"text":"Bulletin","code":"B","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"1558","chapter":"D","title":"White clays of Pennsylvania","docAbstract":"The white clays of Pennsylvania are composed chiefly of kaolinite and various amounts of illite. Most of the white clays are silty and a few are sandy. Quartz or chert is the only nonclay mineral in the whitest material; goethite is also present in the colored samples high in iron. The average alumina content is slightly more than 20 percent in samples from three clay pits and less than 15 percent in samples from five clay pits. The white clay deposits are found in eastern, south-central, and central Pennsylvania. They occur in rocks of the Appalachian basin that range in age from Cambrian to Devonian; however, their age of formation is Cretaceous or later. Some of the deposits are the result of katamorphic alteration, and some are the result of weathered material being transported and deposited in sinkaoles or caverns. The presence of alunite in one deposit suggests the possibility that the clay may be the result of both katamorphic and hydrothermal alteration.
","largerWorkTitle":"Contributions to the geology of mineral deposits","language":"English","publisher":"U.S. Government Printing Office","doi":"10.3133/b1558D","usgsCitation":"Hosterman, J.W., 1984, White clays of Pennsylvania: U.S. Geological Survey Bulletin 1558, iv, 38 p., https://doi.org/10.3133/b1558D.","productDescription":"iv, 38 p.","startPage":"D1","endPage":"D38","costCenters":[],"links":[{"id":62632,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/bul/1558d/report.pdf","text":"Report","size":"4.23 MB","linkFileType":{"id":1,"text":"pdf"},"description":"Report"},{"id":165880,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/bul/1558d/report-thumb.jpg"}],"country":"United States","state":"Pennsylvania","county":"Blair County, Centre County, Cumberland County, Huntingdon County, Lancaster County, Monroe County, York 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