{"pageNumber":"60","pageRowStart":"1475","pageSize":"25","recordCount":2263,"records":[{"id":60340,"text":"mf1246I - 1985 - Maps showing distribution of tin in heavy-mineral concentrates, Richfield 1° x 2° quadrangle, Utah","interactions":[],"lastModifiedDate":"2021-10-25T19:06:12.463908","indexId":"mf1246I","displayToPublicDate":"1994-01-01T07:00:00","publicationYear":"1985","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":"1246","chapter":"I","title":"Maps showing distribution of tin in heavy-mineral concentrates, Richfield 1° x 2° quadrangle, Utah","docAbstract":"<p>These maps are part of a folio of maps of the Richfield 1° x 2 ° quadrangle, Utah, prepared under the Conterminuous United States Mineral Assessment Program. Other publications in this folio are listed in the selected references.</p><p>Located in west-central Utah, the Richfield quadrangle covers the eastern part of the Plioche-Marysvale igneous and mineral belt, which extends from the vicinity of Plioche in southeastern Nevada east-northeastward for 250 km (155 mi) into central Utah. The western two-thirds of the Richfield quadrangle is in the Basin and Range province and the eastern third is in the High Plateaus of Utah, a subprovince of the Colorado Plateau.</p><p><br></p><p>Bedrock in the northern part of the Richfield quadrangle consists predominantly of latest Precambrian and Paleozoic sedimentary strata that were thrust eastward during the Sevier orogeny in Cretaceous time onto an autochthon of Mesozoic sedimentary rocks in the eastern part of the quadrangle. The southern part of the quadrangle is largely underlain by Oligocene and younger volcanic rocks and related intrusions. Extensional tectonism in late Cenozoic time broke the bedrock terrane into a series of north-trending fault blocks; the uplifted mountain areas were deeply eroded and the resulting debris deposited in the adjacent basins. Most of the mineral deposits in the Pioche-Marysvale mineral belt were formed during igneous activity in middle and late Cenozoic time.</p><p>The regional sampling program was designed to define broad geochemical patterns and trends which can be utilized along with geologic and geophysical data to assess the mineral resource potential for this quadrangle. These maps of the Richfield 1° x 2° quadrangle show the regional distributions of copper in two fractions of heavy-mineral concentrates of drainage sediments.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Denver, CO","doi":"10.3133/mf1246I","usgsCitation":"Miller, W.R., Motooka, J.M., and McHugh, J., 1985, Maps showing distribution of tin in heavy-mineral concentrates, Richfield 1° x 2° quadrangle, Utah: U.S. Geological Survey Miscellaneous Field Studies Map 1246, 1 Plate: 36.15 x 27.85 inches, https://doi.org/10.3133/mf1246I.","productDescription":"1 Plate: 36.15 x 27.85 inches","costCenters":[],"links":[{"id":182846,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/mf1246i.jpg"},{"id":390901,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_6853.htm"},{"id":283657,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/1246-I/plate-1.pdf"}],"scale":"500000","country":"United States","state":"Utah","otherGeospatial":"Richfield 1° x 2° quadrangle","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -114.0,38.0 ], [ -114.0,39.0 ], [ -112.0,39.0 ], [ -112.0,38.0 ], [ -114.0,38.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a19e4b07f02db6057ba","contributors":{"authors":[{"text":"Miller, William R.","contributorId":53838,"corporation":false,"usgs":true,"family":"Miller","given":"William","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":263576,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Motooka, Jerry M.","contributorId":36611,"corporation":false,"usgs":true,"family":"Motooka","given":"Jerry","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":263575,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"McHugh, John B.","contributorId":64651,"corporation":false,"usgs":true,"family":"McHugh","given":"John B.","affiliations":[],"preferred":false,"id":263577,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":60339,"text":"mf1246H - 1985 - Maps showing distribution of thorium in heavy-mineral concentrates, Richfield 1° x 2° quadrangle, Utah","interactions":[],"lastModifiedDate":"2021-10-25T19:04:27.687858","indexId":"mf1246H","displayToPublicDate":"1994-01-01T07:00:00","publicationYear":"1985","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":"1246","chapter":"H","title":"Maps showing distribution of thorium in heavy-mineral concentrates, Richfield 1° x 2° quadrangle, Utah","docAbstract":"<p>These maps are part of a folio of maps of the Richfield 1° x 2 ° quadrangle, Utah, prepared under the Conterminuous United States Mineral Assessment Program. Other publications in this folio are listed in the selected references.</p><p><br></p><p>Located in west-central Utah, the Richfield quadrangle covers the eastern part of the Plioche-Marysvale igneous and mineral belt, which extends from the vicinity of Plioche in southeastern Nevada east-northeastward for 250 km (155 mi) into central Utah. The western two-thirds of the Richfield quadrangle is in the Basin and Range province and the eastern third is in the High Plateaus of Utah, a subprovince of the Colorado Plateau.</p><p>Bedrock in the northern part of the Richfield quadrangle consists predominantly of latest Precambrian and Paleozoic sedimentary strata that were thrust eastward during the Sevier orogeny in Cretaceous time onto an autochthon of Mesozoic sedimentary rocks in the eastern part of the quadrangle. The southern part of the quadrangle is largely underlain by Oligocene and younger volcanic rocks and related intrusions. Extensional tectonism in late Cenozoic time broke the bedrock terrane into a series of north-trending fault blocks; the uplifted mountain areas were deeply eroded and the resulting debris deposited in the adjacent basins. Most of the mineral deposits in the Pioche-Marysvale mineral belt were formed during igneous activity in middle and late Cenozoic time.</p><p>The regional sampling program was designed to define broad geochemical patterns and trends which can be utilized along with geologic and geophysical data to assess the mineral resource potential for this quadrangle. These maps of the Richfield 1° x 2° quadrangle show the regional distributions of copper in two fractions of heavy-mineral concentrates of drainage sediments.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Denver, CO","doi":"10.3133/mf1246H","usgsCitation":"Miller, W.R., Motooka, J.M., and McHugh, J., 1985, Maps showing distribution of thorium in heavy-mineral concentrates, Richfield 1° x 2° quadrangle, Utah: U.S. Geological Survey Miscellaneous Field Studies Map 1246, 1 Plate: 36.21 x 27.70 inches, https://doi.org/10.3133/mf1246H.","productDescription":"1 Plate: 36.21 x 27.70 inches","costCenters":[],"links":[{"id":390900,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_6852.htm"},{"id":283656,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/1246-H/plate-1.pdf"},{"id":179801,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/mf1246h.jpg"}],"scale":"500000","country":"United States","state":"Utah","otherGeospatial":"Richfield 1° x 2° quadrangle","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -114.0,38.0 ], [ -114.0,39.0 ], [ -112.0,39.0 ], [ -112.0,38.0 ], [ -114.0,38.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a19e4b07f02db6057b4","contributors":{"authors":[{"text":"Miller, William R.","contributorId":53838,"corporation":false,"usgs":true,"family":"Miller","given":"William","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":263573,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Motooka, Jerry M.","contributorId":36611,"corporation":false,"usgs":true,"family":"Motooka","given":"Jerry","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":263572,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"McHugh, John B.","contributorId":64651,"corporation":false,"usgs":true,"family":"McHugh","given":"John B.","affiliations":[],"preferred":false,"id":263574,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":60338,"text":"mf1246G - 1985 - Maps showing distribution of lead in heavy-mineral concentrates, Richfield 1° x 2° quadrangle, Utah","interactions":[],"lastModifiedDate":"2021-10-25T19:01:20.256061","indexId":"mf1246G","displayToPublicDate":"1994-01-01T07:00:00","publicationYear":"1985","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":"1246","chapter":"G","title":"Maps showing distribution of lead in heavy-mineral concentrates, Richfield 1° x 2° quadrangle, Utah","docAbstract":"<p>These maps are part of a folio of maps of the Richfield 1° x 2 ° quadrangle, Utah, prepared under the Conterminuous United States Mineral Assessment Program. Other publications in this folio are listed in the selected references.</p><p>Located in west-central Utah, the Richfield quadrangle covers the eastern part of the Plioche-Marysvale igneous and mineral belt, which extends from the vicinity of Plioche in southeastern Nevada east-northeastward for 250 km (155 mi) into central Utah. The western two-thirds of the Richfield quadrangle is in the Basin and Range province and the eastern third is in the High Plateaus of Utah, a subprovince of the Colorado Plateau.</p><p><br></p><p>Bedrock in the northern part of the Richfield quadrangle consists predominantly of latest Precambrian and Paleozoic sedimentary strata that were thrust eastward during the Sevier orogeny in Cretaceous time onto an autochthon of Mesozoic sedimentary rocks in the eastern part of the quadrangle. The southern part of the quadrangle is largely underlain by Oligocene and younger volcanic rocks and related intrusions. Extensional tectonism in late Cenozoic time broke the bedrock terrane into a series of north-trending fault blocks; the uplifted mountain areas were deeply eroded and the resulting debris deposited in the adjacent basins. Most of the mineral deposits in the Pioche-Marysvale mineral belt were formed during igneous activity in middle and late Cenozoic time.</p><p>The regional sampling program was designed to define broad geochemical patterns and trends which can be utilized along with geologic and geophysical data to assess the mineral resource potential for this quadrangle. These maps of the Richfield 1° x 2° quadrangle show the regional distributions of copper in two fractions of heavy-mineral concentrates of drainage sediments.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Denver, CO","doi":"10.3133/mf1246G","usgsCitation":"Miller, W.R., Motooka, J.M., and McHugh, J., 1985, Maps showing distribution of lead in heavy-mineral concentrates, Richfield 1° x 2° quadrangle, Utah: U.S. Geological Survey Miscellaneous Field Studies Map 1246, 1 Plate: 36.38 x 27.85 inches, https://doi.org/10.3133/mf1246G.","productDescription":"1 Plate: 36.38 x 27.85 inches","costCenters":[],"links":[{"id":179800,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/mf1246g.jpg"},{"id":283655,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/1246-G/plate-1.pdf"},{"id":390898,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_6851.htm"}],"scale":"500000","country":"United States","state":"Utah","otherGeospatial":"Richfield 1° x 2° quadrangle","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -114.0,38.0 ], [ -114.0,39.0 ], [ -112.0,39.0 ], [ -112.0,38.0 ], [ -114.0,38.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a19e4b07f02db605779","contributors":{"authors":[{"text":"Miller, William R.","contributorId":53838,"corporation":false,"usgs":true,"family":"Miller","given":"William","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":263570,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Motooka, Jerry M.","contributorId":36611,"corporation":false,"usgs":true,"family":"Motooka","given":"Jerry","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":263569,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"McHugh, John B.","contributorId":64651,"corporation":false,"usgs":true,"family":"McHugh","given":"John B.","affiliations":[],"preferred":false,"id":263571,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":60337,"text":"mf1246F - 1985 - Maps showing distribution of copper in heavy-mineral concentrates, Richfield 1° x 2° quadrangle, Utah","interactions":[],"lastModifiedDate":"2021-10-25T18:59:37.497209","indexId":"mf1246F","displayToPublicDate":"1994-01-01T07:00:00","publicationYear":"1985","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":"1246","chapter":"F","title":"Maps showing distribution of copper in heavy-mineral concentrates, Richfield 1° x 2° quadrangle, Utah","docAbstract":"<p>These maps are part of a folio of maps of the Richfield 1° x 2 ° quadrangle, Utah, prepared under the Conterminuous United States Mineral Assessment Program. Other publications in this folio are listed in the selected references.</p><p>Located in west-central Utah, the Richfield quadrangle covers the eastern part of the Plioche-Marysvale igneous and mineral belt, which extends from the vicinity of Plioche in southeastern Nevada east-northeastward for 250 km (155 mi) into central Utah. The western two-thirds of the Richfield quadrangle is in the Basin and Range province and the eastern third is in the High Plateaus of Utah, a subprovince of the Colorado Plateau.</p><p><br></p><p>Bedrock in the northern part of the Richfield quadrangle consists predominantly of latest Precambrian and Paleozoic sedimentary strata that were thrust eastward during the Sevier orogeny in Cretaceous time onto an autochthon of Mesozoic sedimentary rocks in the eastern part of the quadrangle. The southern part of the quadrangle is largely underlain by Oligocene and younger volcanic rocks and related intrusions. Extensional tectonism in late Cenozoic time broke the bedrock terrane into a series of north-trending fault blocks; the uplifted mountain areas were deeply eroded and the resulting debris deposited in the adjacent basins. Most of the mineral deposits in the Pioche-Marysvale mineral belt were formed during igneous activity in middle and late Cenozoic time.</p><p><br></p><p>The regional sampling program was designed to define broad geochemical patterns and trends which can be utilized along with geologic and geophysical data to assess the mineral resource potential for this quadrangle. These maps of the Richfield 1° x 2° quadrangle show the regional distributions of copper in two fractions of heavy-mineral concentrates of drainage sediments.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Denver, CO","doi":"10.3133/mf1246F","usgsCitation":"Miller, W.R., Motooka, J.M., and McHugh, J., 1985, Maps showing distribution of copper in heavy-mineral concentrates, Richfield 1° x 2° quadrangle, Utah: U.S. Geological Survey Miscellaneous Field Studies Map 1246, 1 Plate: 36.31 x 27.27 inches, https://doi.org/10.3133/mf1246F.","productDescription":"1 Plate: 36.31 x 27.27 inches","costCenters":[],"links":[{"id":179799,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/mf1246f.PNG"},{"id":390897,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_6850.htm"},{"id":283654,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/1246-F/plate-1.pdf"}],"scale":"500000","country":"United States","state":"Utah","otherGeospatial":"Richfield 1° x 2° quadrangle","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -114.0,38.0 ], [ -114.0,39.0 ], [ -112.0,39.0 ], [ -112.0,38.0 ], [ -114.0,38.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a19e4b07f02db605711","contributors":{"authors":[{"text":"Miller, William R.","contributorId":53838,"corporation":false,"usgs":true,"family":"Miller","given":"William","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":263567,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Motooka, Jerry M.","contributorId":36611,"corporation":false,"usgs":true,"family":"Motooka","given":"Jerry","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":263566,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"McHugh, John B.","contributorId":64651,"corporation":false,"usgs":true,"family":"McHugh","given":"John B.","affiliations":[],"preferred":false,"id":263568,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":16669,"text":"ofr85582 - 1985 - Generalized interpretation of geologic materials from shot holes drilled for the Trans-Alaska Crustal Transect project, Copper River basin and adjacent regions, Alaska, May-June 1984","interactions":[],"lastModifiedDate":"2012-02-02T00:07:17","indexId":"ofr85582","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1985","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":"85-582","title":"Generalized interpretation of geologic materials from shot holes drilled for the Trans-Alaska Crustal Transect project, Copper River basin and adjacent regions, Alaska, May-June 1984","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/ofr85582","usgsCitation":"Yehle, L.A., Odum, J.K., and Reneau, D., 1985, Generalized interpretation of geologic materials from shot holes drilled for the Trans-Alaska Crustal Transect project, Copper River basin and adjacent regions, Alaska, May-June 1984: U.S. Geological Survey Open-File Report 85-582, i, 33 p. :map ;28 cm., https://doi.org/10.3133/ofr85582.","productDescription":"i, 33 p. :map ;28 cm.","costCenters":[],"links":[{"id":150356,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1985/0582/report-thumb.jpg"},{"id":45717,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1985/0582/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b25e4b07f02db6aee21","contributors":{"authors":[{"text":"Yehle, Lynn A. yehle@usgs.gov","contributorId":3794,"corporation":false,"usgs":true,"family":"Yehle","given":"Lynn","email":"yehle@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":true,"id":173255,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Odum, Jack K. 0000-0002-3162-0355","orcid":"https://orcid.org/0000-0002-3162-0355","contributorId":97900,"corporation":false,"usgs":true,"family":"Odum","given":"Jack","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":173256,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Reneau, David","contributorId":101144,"corporation":false,"usgs":true,"family":"Reneau","given":"David","email":"","affiliations":[],"preferred":false,"id":173257,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":30606,"text":"wri854265 - 1985 - Quality of storm-water runoff, Mililani Town, Oahu, Hawaii, 1980-84","interactions":[],"lastModifiedDate":"2012-02-02T00:09:13","indexId":"wri854265","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1985","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"85-4265","title":"Quality of storm-water runoff, Mililani Town, Oahu, Hawaii, 1980-84","docAbstract":"Storm water runoff and rainfall data were collected at two urban sites in Mililani Town, Oahu, Hawaii between September 1980 and August 1984. The data included results from analyses of 300 samples of storm water runoff. Turbidity, suspended solids, Kjeldahl nitrogen, and phosphorus concentrations exceeded the State of Hawaii Department of Health 's streamwater standards in more than 50% of the samples. Mercury, lead, and fecal coliform bacteria levels exceeded the U.S. EPA 's recommended criteria for either freshwater aquatic life or shellfish harvesting waters in more than half the samples. Other constituents exceeding State or federal standards in at least one sample included pH, cadmium, nitrate plus nitrite, iron, alkalinity, manganese, chromium, copper, zinc, and the pesticides heptachlor , lindane, and melathion. Runoff correlated well with rainfall in both basins. Antecedent rainfall conditions and rainfall intensity had little effect on the quality of runoff. No statistically significant relationships were found between quantity of runoff and concentration of water quality constituents. A ' first flush ' effect was observed for chemical oxygen demand, suspended solids, lead, nitrate plus nitrite, fecal coliform bacteria, dissolved solids, and mercury. There were significant (alpha = 0.05) differences between the two basins for values of discharge, turbidity, specific conductance, chemical oxygen demand, suspended solids, nitrate plus nitrite, phosphorus, lead, dissolved solids, and mercury. The larger basin had higher median and maximum values, and wider ranges of values. (Author 's abstract)","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/wri854265","usgsCitation":"Yamane, C.M., and Lum, M.G., 1985, Quality of storm-water runoff, Mililani Town, Oahu, Hawaii, 1980-84: U.S. Geological Survey Water-Resources Investigations Report 85-4265, vii, 64 p. :ill., map ;28 cm., https://doi.org/10.3133/wri854265.","productDescription":"vii, 64 p. :ill., map ;28 cm.","costCenters":[],"links":[{"id":161181,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1985/4265/report-thumb.jpg"},{"id":59373,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1985/4265/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a8fe4b07f02db654a2e","contributors":{"authors":[{"text":"Yamane, Cheryl M.","contributorId":58691,"corporation":false,"usgs":true,"family":"Yamane","given":"Cheryl","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":203527,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lum, Marty G.","contributorId":75592,"corporation":false,"usgs":true,"family":"Lum","given":"Marty","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":203528,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":68448,"text":"ha686 - 1985 - Water resources of the Copper River basin, Alaska","interactions":[],"lastModifiedDate":"2012-02-10T00:11:26","indexId":"ha686","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1985","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":318,"text":"Hydrologic Atlas","code":"HA","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"686","title":"Water resources of the Copper River basin, Alaska","language":"ENGLISH","doi":"10.3133/ha686","usgsCitation":"Emery, P.A., Jones, S.H., and Glass, R.L., 1985, Water resources of the Copper River basin, Alaska: U.S. Geological Survey Hydrologic Atlas 686, 7 maps on 3 sheets :col. ;sheets 75 x 102 cm. and 74 x 80 cm., folded in envelope 30 x 24 cm., https://doi.org/10.3133/ha686.","productDescription":"7 maps on 3 sheets :col. ;sheets 75 x 102 cm. and 74 x 80 cm., folded in envelope 30 x 24 cm.","costCenters":[],"links":[{"id":186200,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":89981,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/ha/686/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":89982,"rank":401,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/ha/686/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":89983,"rank":402,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/ha/686/plate-3.pdf","linkFileType":{"id":1,"text":"pdf"}}],"scale":"1000000","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -15.234722222222222,60.5 ], [ -15.234722222222222,63.25 ], [ -14.05,63.25 ], [ -14.05,60.5 ], [ -15.234722222222222,60.5 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a14e4b07f02db602dc5","contributors":{"authors":[{"text":"Emery, Philip A.","contributorId":43733,"corporation":false,"usgs":true,"family":"Emery","given":"Philip","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":278238,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jones, Stanley H.","contributorId":98729,"corporation":false,"usgs":true,"family":"Jones","given":"Stanley","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":278240,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Glass, R. L.","contributorId":80279,"corporation":false,"usgs":true,"family":"Glass","given":"R.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":278239,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":61559,"text":"mf1622D - 1985 - Stratigraphic sections, depositional environments, and metal content of the upper part of the Middle Pennsylvanian Minturn Formation, Northern Sangre De Cristo Range, Custer and Saguache counties, Colorado","interactions":[],"lastModifiedDate":"2016-08-23T10:43:48","indexId":"mf1622D","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1985","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":"1622","chapter":"D","title":"Stratigraphic sections, depositional environments, and metal content of the upper part of the Middle Pennsylvanian Minturn Formation, Northern Sangre De Cristo Range, Custer and Saguache counties, Colorado","docAbstract":"<p>The calcareous upper part of the 2,000-meter-thick Middle Pennsylvanian Minturn Formation (Lindsey and others, 1985) in the northern Sangre de Cristo Range is a key stratigraphic interval for correlating rocks and mapping the structure of the range. The stratigraphy of this complex and heretofore poorly known interval is reported here in order to provide a basis for correlation among the structural blocks in the range. Inferred depositional environments of the upper part of the Minturn Formation are described briefly.</p>\n<p>The upper part of the Minturn contains numerous occurrences of stratiform uranium and copper that were examined and sampled in order to document the concentration and distribution of metals within the established stratigraphic framework. The occurrences studied are classified according to the inferred depositional setting of the host rock in order to assess the extent of paleogeographic and paleohydrologic control of mineralized horizons.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/mf1622D","isbn":"0607814292","usgsCitation":"Clark, R.F., and Walz, D., 1985, Stratigraphic sections, depositional environments, and metal content of the upper part of the Middle Pennsylvanian Minturn Formation, Northern Sangre De Cristo Range, Custer and Saguache counties, Colorado: U.S. Geological Survey Miscellaneous Field Studies Map 1622, 2 Plates: 51.02 x 41.76 inches and 37.80 x 45.30 inches, https://doi.org/10.3133/mf1622D.","productDescription":"2 Plates: 51.02 x 41.76 inches and 37.80 x 45.30 inches","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":326359,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/mf1622D.JPG"},{"id":327616,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/1622-D/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":327617,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/1622-D/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}}],"scale":"42850","country":"United States","state":"Colorado","county":"Custer County, Saguache County","otherGeospatial":"Middle Pennsylvanian Minturn Formation","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -105.81694444444445,38 ], [ -105.81694444444445,38.21666666666667 ], [ -105.51777777777778,38.21666666666667 ], [ -105.51777777777778,38 ], [ -105.81694444444445,38 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b23e4b07f02db6adf8b","contributors":{"authors":[{"text":"Clark, R. F.","contributorId":86037,"corporation":false,"usgs":false,"family":"Clark","given":"R.","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":266040,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Walz, D.M.","contributorId":92338,"corporation":false,"usgs":true,"family":"Walz","given":"D.M.","email":"","affiliations":[],"preferred":false,"id":266041,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":61205,"text":"mf1383G - 1985 - Map showing abundance and distribution of copper in oxide residues of stream-sediment samples, Medford 1 degree by 2 degrees Quadrangle, Oregon-California","interactions":[],"lastModifiedDate":"2016-08-23T10:14:01","indexId":"mf1383G","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1985","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":"1383","chapter":"G","title":"Map showing abundance and distribution of copper in oxide residues of stream-sediment samples, Medford 1 degree by 2 degrees Quadrangle, Oregon-California","docAbstract":"<p>Stream-sediment sampling in the&nbsp;<span>Medford 1<sup>o</sup><span class=\"apple-converted-space\">&nbsp;</span>x 2<sup>o</sup><span class=\"apple-converted-space\">&nbsp;</span>quadrangle was undertaken to provide to aid in assessment of the mineral resource potential of the quadrangle. This map presents data on the abundance and distribution of copper in the oxide residues (oxalic-acid leachates) of stream sediments and in the minus-0.18-mm sieve fraction of selected stream sediments collected in the quadrangle.&nbsp;</span></p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/mf1383G","usgsCitation":"Whittington, C.L., Grimes, D.J., and Leinz, R.W., 1985, Map showing abundance and distribution of copper in oxide residues of stream-sediment samples, Medford 1 degree by 2 degrees Quadrangle, Oregon-California: U.S. Geological Survey Miscellaneous Field Studies Map 1383, 43.00 x 27.15 inches, https://doi.org/10.3133/mf1383G.","productDescription":"43.00 x 27.15 inches","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":179841,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/mf1383G.PNG"},{"id":327565,"rank":1,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/1383-G/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}}],"scale":"250000","country":"United States","state":"Oregon","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -124,42 ], [ -124,43 ], [ -122,43 ], [ -122,42 ], [ -124,42 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a94e4b07f02db658c74","contributors":{"authors":[{"text":"Whittington, Charles L.","contributorId":52642,"corporation":false,"usgs":true,"family":"Whittington","given":"Charles","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":265184,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Grimes, David J.","contributorId":36925,"corporation":false,"usgs":true,"family":"Grimes","given":"David","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":265185,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Leinz, Reinhard W.","contributorId":60628,"corporation":false,"usgs":true,"family":"Leinz","given":"Reinhard","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":265186,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":61203,"text":"mf1383J - 1985 - Map showing abundance and distribution of arsenic in oxide residues of stream-sediment samples, Medford 1 degree by 2 degrees Quadrangle, Oregon-California","interactions":[],"lastModifiedDate":"2016-08-23T10:15:45","indexId":"mf1383J","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1985","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":"1383","chapter":"J","title":"Map showing abundance and distribution of arsenic in oxide residues of stream-sediment samples, Medford 1 degree by 2 degrees Quadrangle, Oregon-California","docAbstract":"<p><span>Stream-sediment sampling in the&nbsp;</span><span>Medford 1<sup><span>o</span></sup><span class=\"apple-converted-space\">&nbsp;</span>x 2<sup><span>o</span></sup><span class=\"apple-converted-space\">&nbsp;</span>quadrangle was undertaken to provide to aid in assessment of the mineral resource potential of the quadrangle. This map presents data on the abundance and distribution of copper in the oxide residues (oxalic-acid leachates) of stream sediments and in the minus-0.18-mm sieve fraction of selected stream sediments collected in the quadrangle.&nbsp;</span></p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/mf1383J","usgsCitation":"Whittington, C.L., Leinz, R.W., and Grimes, D.J., 1985, Map showing abundance and distribution of arsenic in oxide residues of stream-sediment samples, Medford 1 degree by 2 degrees Quadrangle, Oregon-California: U.S. Geological Survey Miscellaneous Field Studies Map 1383, 49.67 x 24.19 inches, https://doi.org/10.3133/mf1383J.","productDescription":"49.67 x 24.19 inches","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":179846,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/mf1383J.PNG"},{"id":327568,"rank":1,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/1383-J/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}}],"scale":"250000","country":"United States","state":"Oregon","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -124,42 ], [ -124,43 ], [ -122,43 ], [ -122,42 ], [ -124,42 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a94e4b07f02db658bac","contributors":{"authors":[{"text":"Whittington, Charles L.","contributorId":52642,"corporation":false,"usgs":true,"family":"Whittington","given":"Charles","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":265178,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Leinz, Reinhard W.","contributorId":60628,"corporation":false,"usgs":true,"family":"Leinz","given":"Reinhard","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":265180,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Grimes, David J.","contributorId":36925,"corporation":false,"usgs":true,"family":"Grimes","given":"David","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":265179,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":60393,"text":"mf1573B - 1985 - Aeromagnetic maps of the Mazatzal Wilderness and contiguous roadless areas, Gila, Maricopa, and Yavapai counties, Arizona","interactions":[],"lastModifiedDate":"2016-08-23T08:22:42","indexId":"mf1573B","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1985","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":"1573","chapter":"B","title":"Aeromagnetic maps of the Mazatzal Wilderness and contiguous roadless areas, Gila, Maricopa, and Yavapai counties, Arizona","docAbstract":"<p>The Mazatzal Wilderness and contiguous roadless areas are located in Tonto and Coconino National Forests, west and southwest of Payson, and are almost exactly in the geographic center of Arizona. This is a region of relatively small mining districts and few mines, but occurrences of many different metals are widespread.</p>\n<p>The Mazatzal Mountains constitute the dominant physiographic feature of the wilderness. The eastern slopes of these mountains rise steeply from about 3,500 ft in altitude along the valley of Rye Creek east of the range, to 7,903 ft at Mazatzal Peak. To the west, the range slopes steeply from the crest then more gently along the lower flanks to the Werde River, one of the main drainage channels of Arizona. In the northern part of the wilderness, the East Werde River, a tributary of the Verde, occupies a deep canyon that separates the Mazatzal Mountains from mesas to the north. The lowest parts of the wilderness have altitudes of about 2,200 ft and are located near Bartlett Reservoir in the southwestern part of the area studied.</p>\n<p>Two aeromagnetic surveys were flown and interpreted to aid in the delineation of subsurface lithology and structure: one survey was flown at a low level (1,000 ft above ground) and the other at a high level (9,000 ft above sea level). In addition, the results of a small-scale electromagnetic (EM) survey are briefly discussed; the surface EM survey took place in an area of copper concentrations and past exploration activity to look for evidence of massive sulfide mineralization.</p>\n<p>Studies of the geology, geochemistry (Marsh and others, 1983a, b, Erickson, 1984), mines and prospects (Ellis, 1982), and mineral resource potential (Wrucke and others, 1983) of the Mazatzal Wilderness and contiguous roadless areas have been published elsewhere.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/mf1573B","isbn":"0607813288","usgsCitation":"Moss, C.K., and Abrams, G.A., 1985, Aeromagnetic maps of the Mazatzal Wilderness and contiguous roadless areas, Gila, Maricopa, and Yavapai counties, Arizona: U.S. Geological Survey Miscellaneous Field Studies Map 1573, 2 Plates: 38.70 x 50.88 inches and 30.79 x 28.29 inches, https://doi.org/10.3133/mf1573B.","productDescription":"2 Plates: 38.70 x 50.88 inches and 30.79 x 28.29 inches","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":180084,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/mf1573B.JPG"},{"id":327379,"rank":1,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/1573-B/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":327380,"rank":2,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/1573-B/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}}],"scale":"48000","country":"United States","state":"Arizona","county":"Gila County, Maricopa County, Yavapai County","otherGeospatial":"Mazatzal Wilderness and contiguous roadless areas","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -111.68333333333334,33.8675 ], [ -111.68333333333334,34.33416666666667 ], [ -111.38333333333334,34.33416666666667 ], [ -111.38333333333334,33.8675 ], [ -111.68333333333334,33.8675 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae4e4b07f02db689d7e","contributors":{"authors":[{"text":"Moss, C. K.","contributorId":94661,"corporation":false,"usgs":true,"family":"Moss","given":"C.","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":263672,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Abrams, G. A.","contributorId":27047,"corporation":false,"usgs":true,"family":"Abrams","given":"G.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":263671,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":28269,"text":"wri844172 - 1985 - Water quality of the North Platte River, east-central Wyoming","interactions":[],"lastModifiedDate":"2012-02-02T00:08:53","indexId":"wri844172","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1985","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"84-4172","title":"Water quality of the North Platte River, east-central Wyoming","docAbstract":"This report is a statistical summary of 40 different constituents and physical characteristics that describe the water quality of the North Platter River between Alcova Dam and Orin, Wyoming, a distance of 143 river miles. Data from seven stations are summarized for 1970-79. Water entering the North Platte River upstream from Casper generally is more mineralized and degraded than the water in the North Platte River or in the tributaries entering the river downstream from Casper. The average dissolved solids concentration was about 320 mg/L at the upper sampling station and about 430 mg/L just downstream from Casper. This increase is typical of many other constituents. The mean fecal-coliform concentration at the upper station was about 8 colonies/ml and about 4,000 colonies/100 ml at the station downstream from Casper. Concentrations of some constituents periodically were greater than maximum recommended for drinking water supplies. About 24% of the dissolved solids concentrations were more than 500 mg/L. Some selenium concentrations exceeded the limit of 10 micrograms/L mandated for public water supplies. Large concentrations of copper, zinc, and ammonia indicate that these constituents might be a problem for sensitive aquatic life. (USGS)","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/wri844172","usgsCitation":"Larson, L.R., 1985, Water quality of the North Platte River, east-central Wyoming: U.S. Geological Survey Water-Resources Investigations Report 84-4172, vii, 85 p. :ill., map ;28 cm., https://doi.org/10.3133/wri844172.","productDescription":"vii, 85 p. :ill., map ;28 cm.","costCenters":[],"links":[{"id":159601,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1984/4172/report-thumb.jpg"},{"id":57091,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1984/4172/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a07e4b07f02db5f9878","contributors":{"authors":[{"text":"Larson, L. R.","contributorId":41421,"corporation":false,"usgs":true,"family":"Larson","given":"L.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":199501,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":8416,"text":"ofr85240 - 1985 - Geology and regional setting of the Al Masane ancient mine area, southeastern Arabian Shield, Kingdom of Saudi Arabia","interactions":[],"lastModifiedDate":"2015-09-29T14:51:25","indexId":"ofr85240","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1985","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":"85-240","title":"Geology and regional setting of the Al Masane ancient mine area, southeastern Arabian Shield, Kingdom of Saudi Arabia","docAbstract":"<p>Stratiform zinc-copper massive-sulfide deposits at Al Masane occur in thin dolomitic interbeds within Proterozoic felsic crystal tuff and mafic flows and volcaniclastics. These strata dip steeply westward and are underlain by shale and shaly graywacke to the east and overlain by lapilli crystal tuff to the west. This section is part of the Habawnah fold or mineral belt that extends from the Wadi Wassat area southward into Yemen. Western parts of the Habawnah fold belt, including the Al Masane area, are characterized by a bimodal assemblage of of phenocryst-poor basalts and sodic rhyolite crystal tuff, and by zinc-copper mineral deposits. Strata in the eastern part of the belt, mostly east of the Ashara fault zone, contain abundant phenocryst-rich mafic volcanic rocks, little felsic crystal tuff, and barren or locally nickeliferous massive pyrite deposits.</p>\n<p>Stratified rocks and gabbro sills of the Al Masane area were isoclinally folded and metamorphosed to the greenschist facies. Structural analysis indicates that foliation, lineation, joints, major and minor folds, and one of three sets of faults formed during a single east-west compressional deformational episode. Axial-plane foliation dips steeply westward and is usually coincident with bedding. Lineation plunges steeply to the northwest throughout the map area and is parallel to the intersection of joints of two major sets and to the intersection of these joints with foliation. Major folds have north-trending, gently plunging axes to which the axis of a minor fold set is essentially parallel. A second minor fold-set has a steeply plunging axis parallel to lineation. The Saadah massive-sulfide body is elongated by a fold of this system.</p>\n<p>Unmetamorphosed Proterozoic felsic sills, quartz monzonite and gabbro plutons, porphyritic diorite dikes, mafic dikes, and basalt dikes, in that apparent order, have intruded the stratified section. Basalt dikes are offset by southwestward-dipping reverse faults and by faults parallel to bedding.</p>\n<p>Malachite and metal-oxide-bearing gossans in the Al Masane area were mined in ancient times. Radiocarbon dating of charcoal in slag indicates that the ores were smelted about 1,200 years ago. Gossans are depleted in copper, silver, and zinc, relative to underlying sulfide, by factors of about 0.33, 0.2, and 0.08, respectively. Evaluation of numerous analyses of gossans, carbonates, and silicate rocks indicates that exploration for zinc-copper massive-sulfide deposits in the region should center on detailed geochemical studies of dolomitic beds.</p>\n<p>Dolomitization of host siliceous shales and tuffs and the formation of the massive-sulfide bodies at Al Masane probably caused by submarine fumarolic hydrothermal activity during periods of relative volcanic quiescence. Further work in the Al Masane region should include a study of the dolomitized areas and a search for other potential alteration \"pipe\" products (e.g. chlorite) as a guide to location of proximal deposits.</p>\n<p>Zinc-copper deposits at Al Masane and in the Dhahar-Al Hajrah and Kutam-Farah Garan areas have characteristics in common and are associated with felsic volcanic centers in the western bimodal part of the Habawnah mineral belt. They probably have parallel origins related to sea-floor volcanism. Deposits at Al Masane and Dhahar-Al Hajrah are possibly in the same general stratigraphic interval. Characteristics and distribution of altered rocks at Kutam suggest that the observed structural control of mineralization may represent remobilization.</p>\n<p>Chemical characteristics of volcanic rocks at Al Masane and elsewhere, along with features such as zinc-copper-iron sulfide mineralization, rhyolite-basalt bimodality, and the quartz phenocryst-rich nature of the felsic rocks, are compatible with an unusually primitive tholeiitic island-arc origin for the strata and mineral deposits of the Habawnah mineral belt.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr85240","usgsCitation":"Conway, C.M., 1985, Geology and regional setting of the Al Masane ancient mine area, southeastern Arabian Shield, Kingdom of Saudi Arabia: U.S. Geological Survey Open-File Report 85-240, Report: iii, 97 p.; Maps: 28 cm., https://doi.org/10.3133/ofr85240.","productDescription":"Report: iii, 97 p.; Maps: 28 cm.","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":35982,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1985/0240/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":35983,"rank":401,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1985/0240/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":141961,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1985/0240/report-thumb.jpg"},{"id":35984,"rank":402,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1985/0240/plate-3.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":35985,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1985/0240/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"Saudi Arabia","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              43.5,\n              17.5\n            ],\n            [\n              43.5,\n              18.5\n            ],\n            [\n              44.5,\n              18.5\n            ],\n            [\n              44.5,\n              17.5\n            ],\n            [\n              43.5,\n              17.5  \n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad6e4b07f02db6842bb","contributors":{"authors":[{"text":"Conway, Clay M.","contributorId":106860,"corporation":false,"usgs":true,"family":"Conway","given":"Clay","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":157676,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":58594,"text":"mf1629A - 1985 - Mineral resource potential map of the Fossil Ridge Wilderness Study Area, Gunnison County, Colorado","interactions":[],"lastModifiedDate":"2016-08-19T11:40:51","indexId":"mf1629A","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1985","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":"1629","chapter":"A","title":"Mineral resource potential map of the Fossil Ridge Wilderness Study Area, Gunnison County, Colorado","docAbstract":"<p>Parts of the Fossil Ridge Wilderness Study Area have a high resource potential for gold and silver in small deposits, uranium in medium-size deposits, and high-calcium limestone in large deposits. Parts have a moderate to high potential for uranium, thorium, and light rare-earth elements in small- to medium-size deposits, a moderate potential for copper, lead, and zinc in small deposits, a low potential for molybdenum in small deposits, and an unknown potential for molybdenum in deposits of unknown size. Parts of the area have a low potential for cobalt, chromium, tungsten, beryllium, boron, and tin in small deposits. And, depending on the extraction of precious metals, parts of the area could have a low potential for arsenic in small deposits. Tungsten, rare-earth elements, and tin could not be considered resources except for coexisting base metals, thorium, and uranium.</p>\n<p>Areas that immediately adjoin the Fossil Ridge Wilderness Study Area have a high potential for molybdenum in large deposits, lead in medium-size deposits, and zinc -in small- to medium-size deposits. Depending on the extraction of base metals, parts of the adjoining areas could have a low resource potential for bismuth and cadmium as byproducts in medium-size deposits.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/mf1629A","usgsCitation":"DeWitt, E., Stoneman, R.J., Clark, J.R., and Kluender, S., 1985, Mineral resource potential map of the Fossil Ridge Wilderness Study Area, Gunnison County, Colorado: U.S. Geological Survey Miscellaneous Field Studies Map 1629, Report: 21 p.; Plate: 53.17 x 39.63 inches, https://doi.org/10.3133/mf1629A.","productDescription":"Report: 21 p.; Plate: 53.17 x 39.63 inches","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":183461,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/mf/1985/1629a/report-thumb.jpg"},{"id":88445,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/mf/1985/1629a/report.pdf","text":"Report","linkFileType":{"id":1,"text":"pdf"}},{"id":327020,"rank":301,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/1629-A/plate-1.pdf","text":"Plate"}],"scale":"77500","country":"United States","state":"Colorado","county":"Gunnison County","otherGeospatial":"Fossil Ridge Wilderness Study Area","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -106.75,38.6175 ], [ -106.75,38.75 ], [ -106.5,38.75 ], [ -106.5,38.6175 ], [ -106.75,38.6175 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b1be4b07f02db6a8e08","contributors":{"authors":[{"text":"DeWitt, Ed","contributorId":65081,"corporation":false,"usgs":true,"family":"DeWitt","given":"Ed","affiliations":[],"preferred":false,"id":259963,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stoneman, R. J.","contributorId":100384,"corporation":false,"usgs":true,"family":"Stoneman","given":"R.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":259964,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Clark, J. R.","contributorId":55764,"corporation":false,"usgs":true,"family":"Clark","given":"J.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":259961,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kluender, S.E.","contributorId":61508,"corporation":false,"usgs":true,"family":"Kluender","given":"S.E.","email":"","affiliations":[],"preferred":false,"id":259962,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":3027,"text":"wsp2256B - 1985 - Effects of low-level dams on the distribution of sediment, trace metals, and organic substances in the lower Schuylkill River basin, Pennsylvania","interactions":[],"lastModifiedDate":"2017-06-06T14:02:12","indexId":"wsp2256B","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1985","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":"2256","chapter":"B","title":"Effects of low-level dams on the distribution of sediment, trace metals, and organic substances in the lower Schuylkill River basin, Pennsylvania","docAbstract":"Heavy use of the Schuylkill River for municipal water supplies and a history of accidental spills and discharges of trace metals and organic substances have been a concern of State and local officials for many years. The U.S. Geological Survey, as part of their River Quality Assessment Program, developed a study to assess the occurrence and distribution of trace substances that pose a threat to human health and aquatic life. This report presents the results of the part of the study that evaluates the effects of low-level dams in the lower basin on the distribution and transport of sediment and trace substances. \r\n\r\nA combination of historical and current data were used in the assessment. Suspended-sediment data collected at several mainstem and tributary sites from 1954 to 1979 and sedimentation surveys of the six pools in the lower basin were used to define the sediment-transport characteristics of the river. These data provided a base for assessing the transport of trace substances, which are associated closely with riverbed sediments and suspended particles. Water and riverbed samples were collected for analyses of trace substances at numerous sites in the lower basin from 1978 to 1980. \r\n\r\nThe six dams on the river between Pottstown and Philadelphia have had a significant effect on the transport of sediment and trace substances. Between 1954 and 1970, more than 4.7 million cubic yards of sediment accumulated in the pools formed by the dams. The quantity of sediment deposited in the pools ranged from 150,000 cubic yards in Plymouth Pool to 1.6 million cubic yards in Fairmount Pool. The rate of accumulation in the pools was a function of pool size and geometry and the frequency of storms. About 35 percent of the total sediment discharged by the river was stored in the six pools from 1954 to 1970. Since 1970, the net change in sediment accumulation has been minimal. More than 24 percent of the sediment in Fairmount Pool in 1970 was scoured from the pool during Hurricane Agnes in 1972; however, total sediment accumulation returned to the 1970 level within 2 years. \r\n\r\nAnalyses of water samples showed that some trace substances are associated closely with particulate material transported by the river. The concentration of suspended and total cadmium, chromium, copper, lead, nickel, and zinc correlated well with the concentration of suspended sediment and suspended organic carbon. The average annual discharge of metals in suspension as a percentage of total average annual discharge ranged from 46 percent for nickel to 94 percent for lead for the Schuylkill River at Manayunk. The average annual discharge of each metal remained about the same or decreased between Pottstown and Philadelphia. Synoptic sampling of the inflow and outflow of several pools during storm runoff showed that the pools limit the transport of trace metals. More than 50 percent of the suspended copper transported by the river at Pottstown was deposited in Vincent Pool during the storm of May 12-15, 1980. Similar reductions were observed between Port Kennedy and Manayunk as the storm runoff passed through Norristown, Plymouth, and Flat Rock Pools. \r\n\r\nAnalyses of riverbed sediments showed that concentrations of trace substances were higher in sediments that included all particles finer than 0.062 millimeter than in sediments that included only particles finer than 0.016 millimeter. This suggests that medium and coarse silt particles or conglomerates of finer particles sorb as much or more trace constituents as the individual fine silts and clay particles. Concentrations of trace metals were as much as 90 percent higher in the sediments that included coarse silt. Concentrations of trace organic substances were several times higher in the sediments that included coarse silt than in sediments consisting of only fine silt or clay. \r\n\r\nSurficial and core samples of riverbed sediments were used to define the present and historical distribution of trace substances in ","language":"English","publisher":"U.S. Government Printing Office","doi":"10.3133/wsp2256B","usgsCitation":"Yorke, T.H., Stamer, J.K., and Pederson, G.L., 1985, Effects of low-level dams on the distribution of sediment, trace metals, and organic substances in the lower Schuylkill River basin, Pennsylvania: U.S. Geological Survey Water Supply Paper 2256, vii, 53 p. :ill., maps ;28 cm., https://doi.org/10.3133/wsp2256B.","productDescription":"vii, 53 p. :ill., maps ;28 cm.","costCenters":[{"id":532,"text":"Pennsylvania Water Science Center","active":true,"usgs":true}],"links":[{"id":29858,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wsp/2256b/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":139513,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wsp/2256b/report-thumb.jpg"}],"country":"United States","state":"Pennsylvania","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4acce4b07f02db67ecc5","contributors":{"authors":[{"text":"Yorke, Thomas H.","contributorId":83109,"corporation":false,"usgs":true,"family":"Yorke","given":"Thomas","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":146169,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stamer, John K.","contributorId":104481,"corporation":false,"usgs":true,"family":"Stamer","given":"John","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":146170,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Pederson, Gary L.","contributorId":81084,"corporation":false,"usgs":true,"family":"Pederson","given":"Gary","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":146168,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":46938,"text":"ofr85143 - 1985 - Engineering-geologic map of the southwestern Copper River basin and upper Matanuska River valley, Alaska","interactions":[],"lastModifiedDate":"2022-07-21T19:32:47.469993","indexId":"ofr85143","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1985","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":"85-143","title":"Engineering-geologic map of the southwestern Copper River basin and upper Matanuska River valley, Alaska","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr85143","usgsCitation":"Williams, J.R., 1985, Engineering-geologic map of the southwestern Copper River basin and upper Matanuska River valley, Alaska: U.S. Geological Survey Open-File Report 85-143, 2 Plates: 38.00 × 43.00 inches and 38.00 × 44.00 inches, https://doi.org/10.3133/ofr85143.","productDescription":"2 Plates: 38.00 × 43.00 inches and 38.00 × 44.00 inches","costCenters":[],"links":[{"id":170950,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":404279,"rank":5,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_18987.htm","linkFileType":{"id":5,"text":"html"}},{"id":21094,"rank":402,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1985/0143/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":21093,"rank":401,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1985/0143/plate-1-preview.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":21092,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1985/0143/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}}],"scale":"125000","country":"United States","state":"Alaska","otherGeospatial":"southwestern Copper River basin, upper Matanuska River valley","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -147.729,\n              61.5\n            ],\n            [\n              -145.875,\n              61.5\n            ],\n            [\n              -145.875,\n              62.5\n            ],\n            [\n              -147.729,\n              62.5\n            ],\n            [\n              -147.729,\n              61.5\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a14e4b07f02db6026ed","contributors":{"authors":[{"text":"Williams, John R.","contributorId":107260,"corporation":false,"usgs":true,"family":"Williams","given":"John","email":"","middleInitial":"R.","affiliations":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"preferred":false,"id":234361,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":2745,"text":"wsp2256A - 1985 - Distribution and transport of trace substances in the Schuylkill River basin from Berne to Philadelphia, Pennsylvania","interactions":[{"subject":{"id":48805,"text":"ofr83265 - 1983 - Distribution and transport of trace substances in the Schuylkill River Basin from Berne to Philadelphia, Pennsylvania","indexId":"ofr83265","publicationYear":"1983","noYear":false,"title":"Distribution and transport of trace substances in the Schuylkill River Basin from Berne to Philadelphia, Pennsylvania"},"predicate":"SUPERSEDED_BY","object":{"id":2745,"text":"wsp2256A - 1985 - Distribution and transport of trace substances in the Schuylkill River basin from Berne to Philadelphia, Pennsylvania","indexId":"wsp2256A","publicationYear":"1985","noYear":false,"chapter":"A","title":"Distribution and transport of trace substances in the Schuylkill River basin from Berne to Philadelphia, Pennsylvania"},"id":1}],"lastModifiedDate":"2017-06-09T08:37:03","indexId":"wsp2256A","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1985","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":"2256","chapter":"A","title":"Distribution and transport of trace substances in the Schuylkill River basin from Berne to Philadelphia, Pennsylvania","docAbstract":"During the period from October 1978 to March 1981, the U.S. Geological Survey assessed the river quality of the Schuylkill River basin in Pennsylvania from the headwaters to the Fairmount Dam at Philadelphia (river mile 8.4). The assessment focused on the distribution and transport of trace metals and organic substances (trace substances). Trace metals included were arsenic, beryllium, cadmium, copper, lead, mercury, nickel, and zinc; trace organic substances included organochlorine insecticides and polychlorinated biphenyls. \r\n\r\nIn general, concentrations of trace substances in the streambed sediments were greater in the main stem of the Schuylkill River than in its tributaries and exceeded the background concentrations in the study area. Concentrations of most trace metals in the sediments were lowest in the Berne area (river mile 95) and highest in the urban-industrial area of Reading (river mile 76). Concentrations generally decreased from Reading downstream to Philadelphia (river mile 10.2). Concentrations of the organochlorine insecticides chlordane, DDT and its metabolites, and dieldrin generally increased gradually from Berne to Philadelphia. Average concentrations of trace metals in the main stem of the Schuylkill River in the sediment-sized fraction, less than 0.063 millimeters, were: zinc, 603 ?g/g (micrograms per gram); lead, 284 ?g/g; copper, 252 ?g/g; nickel, 119 ?g/g; chromium, 96 ?g/g; beryllium, 8.2 ?g/g; arsenic, 0.64 ?g/g; and mercury, 0.002 ?g/g. Average concentrations of trace organic substances in sediments of the main stem of the river were: polychlorinated biphenyls, 152 ?g/kg (micrograms per kilogram); chlordane, 24 ?g/kg; DDT and its metabolites, 18 ?g/kg; and dieldrin, 1.8 ?g/kg. \r\n\r\nThe average annual transport of trace substances by the river was computed for chromium, copper, lead, nickel, and zinc. Concentrations of other trace substances in the sediment-water mixtures were generally undetectable. Of the trace metals, average annual transport of zinc was the greatest, and that of nickel was the least. Transport of trace metals in the river is closely associated with and related to suspended-sediment transport. About 71 percent of the average annual total metal transport is particulate material. \r\n\r\nYields, in tons per square mile per year, of copper, lead, zinc, and total organic carbon in the Schuylkill River basin were compared with yields in the Chattahoochee River basin (Georgia). The comparison indicates that yields, by constituent, were of the same order of magnitude. Both basins lie in the Piedmont province, and both have about the same percentage of urban land use.\r\n\r\nThe frequency of occurrence of concentrations of copper, lead, and zinc in the sediment-water mixture at Manayunk in Philadelphia were compared with domestic water-supply criteria of the U.S. Environmental Protection Agency. The criteria are exceeded less than 1 percent of the time, or about 4 days per year.","language":"English","publisher":"U.S. Government Printing Office","doi":"10.3133/wsp2256A","usgsCitation":"Stamer, J.K., Yorke, T.H., and Pederson, G.L., 1985, Distribution and transport of trace substances in the Schuylkill River basin from Berne to Philadelphia, Pennsylvania: U.S. Geological Survey Water Supply Paper 2256, vii, A45 p. :ill., maps ;28 cm., https://doi.org/10.3133/wsp2256A.","productDescription":"vii, A45 p. :ill., maps ;28 cm.","costCenters":[{"id":532,"text":"Pennsylvania Water Science Center","active":true,"usgs":true}],"links":[{"id":139041,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wsp/2256a/report-thumb.jpg"},{"id":29171,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wsp/2256a/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","otherGeospatial":"Schuylkill River basin","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -75.76309204101562,\n              39.89709437260048\n            ],\n            [\n              -74.95147705078125,\n              39.89709437260048\n            ],\n            [\n              -74.95147705078125,\n              40.26904802805884\n            ],\n            [\n              -75.76309204101562,\n              40.26904802805884\n            ],\n            [\n              -75.76309204101562,\n              39.89709437260048\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a6de4b07f02db63f6ad","contributors":{"authors":[{"text":"Stamer, John K.","contributorId":104481,"corporation":false,"usgs":true,"family":"Stamer","given":"John","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":145701,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Yorke, Thomas H.","contributorId":83109,"corporation":false,"usgs":true,"family":"Yorke","given":"Thomas","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":145700,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Pederson, Gary L.","contributorId":81084,"corporation":false,"usgs":true,"family":"Pederson","given":"Gary","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":145699,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":11209,"text":"ofr859 - 1985 - Preliminary report on gold deposits at Meshaheed, Kingdom of Saudi Arabia","interactions":[],"lastModifiedDate":"2015-09-16T15:21:39","indexId":"ofr859","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1985","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":"85-9","title":"Preliminary report on gold deposits at Meshaheed, Kingdom of Saudi Arabia","docAbstract":"<p>A fault-controlled, hydrothermal system deposited gold, stibnite, and quartz in metasediments, intrusive basalt, and diorite in an area approximately 3 by 5 km in the Meshaheed area of the northeastern Arabian Shield. Veins in metasediments appear to be lenticular and average less than 1 m thick. A related, quartz-pyrite stockwork in fractured, hydrothermally altered basalt is approximately 1 km long and at least 100 m wide. Poorly defined veins and veinlets bear gold, stibnite, and quartz, A few areas of ancient goldmining activity are in metasediments at the perimeter of a large diorite pluton. The arrangement of the pits also indicates that unexposed veinlet systems may be as much as 40 m wide. Small areas of diorite have also been hydrothermally altered where gold-stibnite-quartz veins were emplaced.</p>\n<p>A molybdenite-quartz stockwork and other quartz stockworks bearing traces of molybdenum, bismuth, and silver are in small diorite plutons. Large areas of moderately hydrothermally altered metasediments bearing trace molybdenum are also present. These mineralized zones are not cogenetic with the gold-stibnite-quartz deposits.</p>\n<p>A separate stream-sediment sampling program has shown the area southeast of Meshaheed to be anomalous in lead, copper, boron, tin, iron, and molybdenum, and a preliminary geophysical survey found resistivity anomalies coincident with the altered, intrusive basalt.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr859","usgsCitation":"Smith, C.W., and Samater, R., 1985, Preliminary report on gold deposits at Meshaheed, Kingdom of Saudi Arabia: U.S. Geological Survey Open-File Report 85-9, Report: iii, 42 p.; maps: 28 cm., https://doi.org/10.3133/ofr859.","productDescription":"Report: iii, 42 p.; maps: 28 cm.","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":144501,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1985/0009/report-thumb.jpg"},{"id":38990,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1985/0009/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":38991,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1985/0009/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"Saudi Arabia","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              42,\n              26\n            ],\n            [\n              42,\n              26.5\n            ],\n            [\n              42.5,\n              26.5\n            ],\n            [\n              42.5,\n              26\n            ],\n            [\n              42,\n              26\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4aafe4b07f02db66cb5d","contributors":{"authors":[{"text":"Smith, C. W.","contributorId":57457,"corporation":false,"usgs":true,"family":"Smith","given":"C.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":162734,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Samater, R.M.","contributorId":82694,"corporation":false,"usgs":true,"family":"Samater","given":"R.M.","affiliations":[],"preferred":false,"id":162735,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":19594,"text":"ofr85327 - 1985 - Background hydrologic information in potential lignite mining areas in north-central Mississippi, August 1984","interactions":[],"lastModifiedDate":"2012-02-02T00:07:29","indexId":"ofr85327","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1985","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":"85-327","title":"Background hydrologic information in potential lignite mining areas in north-central Mississippi, August 1984","docAbstract":"The U.S. Geological Survey, in cooperation with the Mississippi Department of Natural Resources, Bureau of Geology, is conducting a hydrologic data collection program in potential lignite-producing areas in Mississippi. During the last two weeks of August 1984, hydrologic data were collected at 15 stream sites that drain potential lignite mining areas in Lafayette, Calhoun, and Yalobusha Counties. Main channel widths ranged from approximately 60 feet at three streams (Coon Creek near Toccopula, Muckaloon Creek near Tula, and Hurricane Creek near Velma) to approximately 120 feet at two streams (Potlockney Creek near Tula, and Savannah Creek near Bruce). Maximum water depths ranged from less than 1.0 foot at most streams to over 5.0 feet at sites on Potlockney Creek near Tula and McGill Creek near Sarepta. Stream discharge ranged from 0.32 cubic feet per second in Persimmon Creek near Bruce to 18.5 cubic feet per second in Puskus Creek near Etta. The specific conductance of stream water ranged from 25 to 160 microsiemens and dissolved solids concentrations ranged from 22 to 91 mg/L (milligrams per liter). Most major ion concentrations were less than 10 mg/L with the exception of calcium (11 mg/L), sodium (12 mg/L) and sulfate (18 mg/L) in the water of Persimmon Creek near Bruce. Dissolved oxygen concentrations were greater than 5.0 mg/L at all but one site. Turbidity values were generally less than 50 units. Nitrate plus nitrite concentrations were equal to or less than 0.10 mg/L in all streams except in Potlockney Creek near Tula where the concentration was 0.11 mg/L. Copper and selenium concentrations in the water at all sampling sites ranged from below the detection limits (1 microgram/g) to 4 micrograms/g (micrograms per gram) and mercury concentrations in bottom material samples ranged from less than 0.01 microgram/g to 0.15 microgram/g. (USGS)","language":"ENGLISH","publisher":"U.S. Geological Survey ;\r\nOpen-File Services Section, Western Distribution Branch, U.S. Geological Survey [distributor],","doi":"10.3133/ofr85327","usgsCitation":"Kalkhoff, S., 1985, Background hydrologic information in potential lignite mining areas in north-central Mississippi, August 1984: U.S. Geological Survey Open-File Report 85-327, iv, 18 p. :ill. ;29 cm., https://doi.org/10.3133/ofr85327.","productDescription":"iv, 18 p. :ill. ;29 cm.","costCenters":[],"links":[{"id":151969,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1985/0327/report-thumb.jpg"},{"id":49062,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1985/0327/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a80e4b07f02db6496b9","contributors":{"authors":[{"text":"Kalkhoff, S. J.","contributorId":28967,"corporation":false,"usgs":true,"family":"Kalkhoff","given":"S. J.","affiliations":[],"preferred":false,"id":181181,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":38539,"text":"pp1327 - 1985 - Geology of the Tanama and Helecho porphyry copper deposits and vicinity, Puerto Rico","interactions":[],"lastModifiedDate":"2012-02-02T00:10:16","indexId":"pp1327","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1985","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":"1327","title":"Geology of the Tanama and Helecho porphyry copper deposits and vicinity, Puerto Rico","language":"ENGLISH","doi":"10.3133/pp1327","usgsCitation":"Cox, D.P., 1985, Geology of the Tanama and Helecho porphyry copper deposits and vicinity, Puerto Rico: U.S. Geological Survey Professional Paper 1327, 59 p.; 1 plate in pocket, https://doi.org/10.3133/pp1327.","productDescription":"59 p.; 1 plate in pocket","costCenters":[],"links":[{"id":104603,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_4804.htm","linkFileType":{"id":5,"text":"html"},"description":"4804"},{"id":120240,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/pp/1327/report-thumb.jpg"},{"id":65305,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/pp/1327/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":65306,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/pp/1327/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4acce4b07f02db67e3ce","contributors":{"authors":[{"text":"Cox, D. P.","contributorId":82689,"corporation":false,"usgs":true,"family":"Cox","given":"D.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":220023,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70185591,"text":"70185591 - 1985 - Effects of copper on production of periphyton, nitrogen fixation and processing of leaf litter in a Sierra Nevada, California, stream","interactions":[],"lastModifiedDate":"2020-01-19T10:58:07","indexId":"70185591","displayToPublicDate":"1985-04-01T00:00:00","publicationYear":"1985","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1696,"text":"Freshwater Biology","active":true,"publicationSubtype":{"id":10}},"title":"Effects of copper on production of periphyton, nitrogen fixation and processing of leaf litter in a Sierra Nevada, California, stream","docAbstract":"<ul id=\"l1\" class=\"custom\"><li><span class=\"bullet\">1</span>Production of periphyton, nitrogen fixation and processing of leaf litter were examined in an oligotrophic Sierra Nevada stream and the responses of these processes to copper (2.5, 5 and 10<i>μ</i>g 1<sup>-1</sup> Cu<sub>T</sub> [total filtrable copper]; approximately 12, 25 and 50 ng 1<sup>-1</sup> Cu<sup>2+</sup>) were determined.</li><li><span class=\"bullet\">2</span>Autotrophic and total production were estimated from 3-week accumulations of biomass on artificial substrates. Mean autotrophic production in the control ranged from 0.22 to 0.58 mg C m<sup>-2</sup> h<sup>-1</sup> in summer-autumn 1979, but declined to 0.08–0.28 mg C m <sup>2</sup> h<sup>-1</sup> after peak discharge in summer 1980, apparently due to phosphorus-limited growth. Total production in the control ranged from 0.30 to 0.82 mg C m<sup>-2</sup> h <sup>-1</sup> in summer-autumn 1979 and from 0.16 to 0,68 mg C m <sup>-2</sup> h <sup>-1</sup> in 1980. Mean autotrophic productivity, estimated by <sup>l4</sup>C-bicarbonate uptake in daylight, ranged from 0.30 to 2.8 mg C m<sup>-2</sup> h<sup>-1</sup>.</li><li><span class=\"bullet\">3</span>Autotrophic productivity was reduced by 57–81% at 2.5<i>μ</i>g 1<sup>-1</sup> Cu<sub>T</sub>, 55–96% at 5<i>μ</i>g 1<sup>-1</sup>Cu<sub>T</sub>, and 81–100% at 10<i>μ</i>g 1<sup>-1</sup> CU<sub>T</sub>, Heterotrophic productivity (based on dark <sup>35</sup>S-sulphate uptake) was inhibited to a lesser extent (28–63% at 2.5<i>μ</i>g 1<sup>-1</sup> Cu<sub>T</sub>, 24–84% at 5<i>μ</i>g 1<sup>-1</sup> Cu<sub>T</sub>, and 67–92% at 10<i>μ</i>g 1<sup>-1</sup> Cu<sub>T</sub>), The inhibition of autotrophic and heterotrophic productivity persisted through the year of exposure. Production in stream sections previously exposed to 2.5 and 5<i>μ</i>g 1<sup>-1</sup>Cu<sub>T</sub> increased to control levels within 4 weeks after dosing, but remained depressed for more than 7 weeks after exposure to 10<i>μ</i>g 1<sup>-1</sup> Cu<sub>T</sub>.</li><li><span class=\"bullet\">4</span>The specific rate of photosynthesis (mg C mg chlorophyll <i>a</i><sup>-1</sup> h<sup>-1</sup>) of mature periphyton communities declined at all test concentrations of copper, but the rate for periphyton on newly-colonized surfaces did not change. The species composition of benthic algae shifted during exposure to an assemblage more tolerant of copper. <i>Achrtanthes minutissima</i> and <i>Fragilaria crotonensis</i> were the primary replacement species on newly-colonized surfaces.</li><li><span class=\"bullet\">5</span>The nitrogenase activity of blue-green algae was low. with controls ranging from 2.4 to 12 nmol C<sub>2</sub>H<sub>2</sub> m<sup>-2</sup> h<sup>-1</sup>. Nitrogenase activity was inhibited during the initial weeks of exposure by 5 and 10<i>μ</i>g 1<sup>-1</sup> Cu<sub>T</sub>. However, after 9 months of exposure, control and copper-treated sections did not differ.</li><li><span class=\"bullet\">6</span>The rate of processing of leaf litter, estimated by microbial respiration and nutrient quality of litter of resident riparian woodland taxa, was inhibited at all test concentrations of copper.</li></ul>","language":"English","publisher":"Wiley","doi":"10.1111/j.1365-2427.1985.tb00189.x","usgsCitation":"Leland, H.V., and Carter, J.L., 1985, Effects of copper on production of periphyton, nitrogen fixation and processing of leaf litter in a Sierra Nevada, California, stream: Freshwater Biology, v. 15, no. 2, p. 155-173, https://doi.org/10.1111/j.1365-2427.1985.tb00189.x.","productDescription":"19 p. ","startPage":"155","endPage":"173","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":338270,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"Convict Creek ","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -118.84855270385742,\n              37.59444376462195\n            ],\n            [\n              -118.8416004180908,\n              37.60750012497884\n            ],\n            [\n              -118.81662368774413,\n              37.61776679867661\n            ],\n            [\n              -118.80246162414551,\n              37.61701894316063\n            ],\n            [\n              -118.79164695739745,\n              37.6081800809684\n            ],\n            [\n              -118.78546714782715,\n              37.61586315165877\n            ],\n            [\n              -118.79593849182129,\n              37.62286561307131\n            ],\n            [\n              -118.81430625915527,\n              37.62483706088789\n            ],\n            [\n              -118.83130073547365,\n              37.61994233558931\n            ],\n            [\n              -118.84855270385742,\n              37.615659186587635\n            ],\n            [\n              -118.85378837585449,\n              37.60716014465307\n            ],\n            [\n              -118.8523292541504,\n              37.596143941292326\n            ],\n            [\n              -118.84855270385742,\n              37.59444376462195\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"15","issue":"2","noUsgsAuthors":false,"publicationDate":"2006-05-29","publicationStatus":"PW","scienceBaseUri":"58d6303ce4b05ec799131107","contributors":{"authors":[{"text":"Leland, Harry V.","contributorId":51158,"corporation":false,"usgs":true,"family":"Leland","given":"Harry","email":"","middleInitial":"V.","affiliations":[],"preferred":false,"id":686052,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Carter, James L. 0000-0002-0104-9776 jlcarter@usgs.gov","orcid":"https://orcid.org/0000-0002-0104-9776","contributorId":3278,"corporation":false,"usgs":true,"family":"Carter","given":"James","email":"jlcarter@usgs.gov","middleInitial":"L.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":686053,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70012909,"text":"70012909 - 1985 - A comparative study of stream water and stream sediment as geochemical exploration media in the Rio Tanama porphyry copper district, Puerto Rico","interactions":[],"lastModifiedDate":"2025-03-07T16:15:29.678761","indexId":"70012909","displayToPublicDate":"1985-01-01T00:00:00","publicationYear":"1985","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":"A comparative study of stream water and stream sediment as geochemical exploration media in the Rio Tanama porphyry copper district, Puerto Rico","docAbstract":"<div class=\"u-margin-s-bottom\">To test the relative effectiveness of stream water and sediment as geochemical exploration media in the Rio Tanama porphyry copper district of Puerto Rico, we collected and subsequently analyzed samples of water and sediment from 29 sites in the rivers and tributaries of the district. Copper, Mo, Pb, Zn,<span>&nbsp;</span><i>SO</i><sub>4</sub><sup>2−</sup>, and pH were determined in the waters; Cu, Mo, Pb, and Zn were determined in the sediments. In addition, copper in five partial extractions from the sediments was determined. Geochemical contrast (anomaly-to-background quotient) was the principal criterion by which the effectiveness of the two media and the five extractions were judged.</div><div class=\"u-margin-s-bottom\">Among the distribution patterns of metals in stream water, that of copper most clearly delineates the known porphyry copper deposits and yields the longest discernable dispersion train. The distribution patterns of Mo, Pb, and Zn in water show little relationship to the known mineralization. The distribution of<span>&nbsp;</span><i>SO</i><sub>4</sub><sup>2−</sup><span>&nbsp;</span>in water delineates the copper deposits and also the more extensive pyrite alteration in the district; its recognizable downstream dispersion train is substantially longer than those of the metals, either in water or sediment. Low pH values in small tributaries delineate areas of known sulfide mineralization.</div><div class=\"u-margin-s-bottom\">The distribution patterns of copper in sediments clearly delineate the known deposits, and the dispersion trains are longer than those of copper in water.</div><div class=\"u-margin-s-bottom\">The partial determinations of copper related to secondary iron and manganese oxides yield the strongest geochemical contrasts and longest recognizable dispersion trains. Significantly high concentrations of molybdenum in sediments were found at only three sites, all within one-half km downstream of the known copper deposits. The distribution patterns of lead and zinc in sediments are clearly related to the known primary lead-zinc haloes around the copper deposits. The recognizable downstream dispersion trains of lead and zinc are shorter than those of copper.</div>","language":"English","publisher":"Elsevier","doi":"10.1016/0375-6742(85)90044-5","issn":"03756742","usgsCitation":"Learned, R.E., Chao, T.T., and Sanzolone, R.F., 1985, A comparative study of stream water and stream sediment as geochemical exploration media in the Rio Tanama porphyry copper district, Puerto Rico: Journal of Geochemical Exploration, v. 24, no. 2, p. 175-195, https://doi.org/10.1016/0375-6742(85)90044-5.","productDescription":"21 p.","startPage":"175","endPage":"195","numberOfPages":"21","costCenters":[],"links":[{"id":222232,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"24","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e351e4b0c8380cd45f78","contributors":{"authors":[{"text":"Learned, R. E.","contributorId":9638,"corporation":false,"usgs":true,"family":"Learned","given":"R.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":364810,"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":364811,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Sanzolone, R. F.","contributorId":64199,"corporation":false,"usgs":true,"family":"Sanzolone","given":"R.","middleInitial":"F.","affiliations":[],"preferred":false,"id":364812,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70013263,"text":"70013263 - 1985 - Copper and silver accumulation in transplanted and resident clams (Macoma balthica) in South San Francisco Bay","interactions":[],"lastModifiedDate":"2020-01-19T10:54:00","indexId":"70013263","displayToPublicDate":"1985-01-01T00:00:00","publicationYear":"1985","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2664,"text":"Marine Environmental Research","active":true,"publicationSubtype":{"id":10}},"title":"Copper and silver accumulation in transplanted and resident clams (Macoma balthica) in South San Francisco Bay","docAbstract":"<p>Accumulation of Cu and Ag by soft tissues of the deposit-feeding clam Macoma balthica was less than half in clams transplanted to a contaminated area than in clams native to that area. During a period of tissue growth, the transplants retained 50% and 90%, respectively, of the net Cu and Ag accumulated, but loss of metals from soft tissue by the resident population equalled net accumulation. Copper accumulation in the transplants did not occur during some periods when increases in the metal body burden of the resident population indicated that environmental exposures were high. The difference in metal accumulation of the two groups of clams may be the result of past environmental exposures. The results illustrate some limitations of using transplants as indicators of pollution events or of pollutant impact upon resident populations.</p>","language":"English","publisher":"Elsevier","doi":"10.1016/0141-1136(85)90133-3","issn":"01411136","usgsCitation":"Cain, D., and Luoma, S.N., 1985, Copper and silver accumulation in transplanted and resident clams (Macoma balthica) in South San Francisco Bay: Marine Environmental Research, v. 15, no. 2, p. 115-135, https://doi.org/10.1016/0141-1136(85)90133-3.","productDescription":"21 p.","startPage":"115","endPage":"135","numberOfPages":"21","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":552,"text":"San Francisco Bay-Delta","active":false,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true},{"id":5079,"text":"Pacific Regional Director's Office","active":true,"usgs":true}],"links":[{"id":219788,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"South San Francisco Bay","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -122.84912109375,\n              37.274052809979054\n            ],\n            [\n              -121.57470703125,\n              37.274052809979054\n            ],\n            [\n              -121.57470703125,\n              37.88352498087131\n            ],\n            [\n              -122.84912109375,\n              37.88352498087131\n            ],\n            [\n              -122.84912109375,\n              37.274052809979054\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"15","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059fbf7e4b0c8380cd4e060","contributors":{"authors":[{"text":"Cain, D.J.","contributorId":68329,"corporation":false,"usgs":true,"family":"Cain","given":"D.J.","email":"","affiliations":[],"preferred":false,"id":365673,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Luoma, Samuel N. 0000-0001-5443-5091 snluoma@usgs.gov","orcid":"https://orcid.org/0000-0001-5443-5091","contributorId":2287,"corporation":false,"usgs":true,"family":"Luoma","given":"Samuel","email":"snluoma@usgs.gov","middleInitial":"N.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":779759,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70013061,"text":"70013061 - 1985 - Electrical geophysical investigations of massive sulfide deposits and their host rocks, West Shasta copper-zinc district","interactions":[],"lastModifiedDate":"2024-01-08T18:28:43.380103","indexId":"70013061","displayToPublicDate":"1985-01-01T00:00:00","publicationYear":"1985","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1472,"text":"Economic Geology","active":true,"publicationSubtype":{"id":10}},"title":"Electrical geophysical investigations of massive sulfide deposits and their host rocks, West Shasta copper-zinc district","docAbstract":"<p><span>The West Shasta copper-zinc district, Shasta County, California, contains many volcanogenic sulfide deposits within Middle Devonian rhyolites that have not been highly metamorphosed. The district was selected by the U.S. Geological Survey for intensive geological, geochemical, and geophysical study under the Development of Assessment Techniques (DAT) project because accessible exposures have been created by erosion and mining. This report describes the geophysical methods applied to characterize the electrical properties of selected West Shasta massive sulfide deposits and their host rocks, at both small (less than 25 ft) and large (greater than 25 ft) scales. The electrical techniques used galvanic (spectral induced polarization--SIP) and induction (very low frequency--VLF, slingram, and time domain electro-magnetics--TDEM) methods.In situ spectral induced polarization measurements were carried out to determine whether or not conductive anomalies in the district could be differentiated by their polarization signatures. The sulfide, in situ, induced polarization-phase spectral signatures (the induced polarization effect as a function of frequency) have much less character and lack the distinctive shape reported for other massive sulfide deposits; however, they do have some identifiable massive sulfide traits, such as low resistivity and variable polarizability. The nondescript sulfide spectral signature is attributed to the poor development of polarization processes due to a high percentage of resistive, nonpolarizable gangue minerals, lack of pore space, and limited electrolytic fluids. Large-scale spectral induced polarization measurements over the Hornet orebody have a greater polarization than the in situ measurements. This observation, in addition to the fact that much of the Hornet sulfide body has been removed by previous mining activity, suggests that the dominant polarization processes occur at the ground-water-sulfide interface.Combined use of induction techniques, which have different depths of penetration, were used to locate conductive anomalies and determine their shape and depth. All the induction surveys over the Hornet orebody detected the conductive tabular-shaped massive pyritic sulfide deposit hosted in resistive rhyolite. Shallow penetrating induction methods near the Keystone mine detected a conductive fault zone where a block of shale has been downfaulted into volcanic rock. Integrated interpretation of deeper penetrating induction data over this conductive fault zone indicates that parts of the shale are also conductive, demonstrating that the integrated use of several induction methods provides better conductor definition than a single method.</span></p>","language":"English","publisher":"Society of Economic Geologists","doi":"10.2113/gsecongeo.80.8.2213","issn":"03610128","usgsCitation":"Horton, R.J., Smith, B.D., and Washburne, J., 1985, Electrical geophysical investigations of massive sulfide deposits and their host rocks, West Shasta copper-zinc district: Economic Geology, v. 80, no. 8, p. 2213-2229, https://doi.org/10.2113/gsecongeo.80.8.2213.","productDescription":"17 p.","startPage":"2213","endPage":"2229","numberOfPages":"17","costCenters":[],"links":[{"id":220344,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"80","issue":"8","noUsgsAuthors":false,"publicationDate":"1985-12-01","publicationStatus":"PW","scienceBaseUri":"505a0890e4b0c8380cd51b8b","contributors":{"authors":[{"text":"Horton, R. J.","contributorId":19926,"corporation":false,"usgs":true,"family":"Horton","given":"R.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":365197,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Smith, B. D.","contributorId":71123,"corporation":false,"usgs":true,"family":"Smith","given":"B.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":365198,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Washburne, J.C.","contributorId":105431,"corporation":false,"usgs":true,"family":"Washburne","given":"J.C.","affiliations":[],"preferred":false,"id":365199,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70013001,"text":"70013001 - 1985 - The plumbotectonics of the West Shasta mining district, eastern Klamath Mountains, California","interactions":[],"lastModifiedDate":"2024-01-08T23:19:13.416275","indexId":"70013001","displayToPublicDate":"1985-01-01T00:00:00","publicationYear":"1985","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1472,"text":"Economic Geology","active":true,"publicationSubtype":{"id":10}},"title":"The plumbotectonics of the West Shasta mining district, eastern Klamath Mountains, California","docAbstract":"<p><span>The tectonic setting comprising the West Shasta mining district has often been compared with that of primitive island arcs. Concentrations of uranium, thorium, and lead and lead isotope compositions were determined for Devonian ores and rocks of the West Shasta district, eastern Klamath Mountains, California, to help evaluate the tectonic classification. The lead isotope pattern is found to be complex. From comparison of the data with those on younger ores and rocks in the region and with those isotopic patterns found in modern tectonic terranes, however, a number of conclusions are possible. A lead isotope point for the Devonian oceanic mantle is now well established from this study on the West Shasta district. This isotopic composition is in agreement with that suggested by Slawson in 1983--i.e., from a sample of massive sulfide ore from the Golinsky deposit--with a&nbsp;</span><sup>206</sup><span>&nbsp;Pb/&nbsp;</span><sup>204</sup><span>&nbsp;Pb of 17.830, a&nbsp;</span><sup>207</sup><span>&nbsp;Pb/&nbsp;</span><sup>204</sup><span>&nbsp;Pb of 15.450, and a&nbsp;</span><sup>208</sup><span>&nbsp;Pb/&nbsp;</span><sup>204</sup><span>&nbsp;Pb of 37.313. If the Devonian mantle is analogous to the modern mantle, the determined value is probably at the more radiogenic end of the Devonian oceanic mantle array.Some samples of volcanic rocks and ores that have elevated values of&nbsp;</span><sup>207</sup><span>&nbsp;Pb/&nbsp;</span><sup>204</sup><span>&nbsp;Pb and&nbsp;</span><sup>208</sup><span>&nbsp;Pb/&nbsp;</span><sup>204</sup><span>&nbsp;Pb indicate that subducted pelagic sediments or interaction of the magmas with other sediments downsection have been involved to varying degrees in the generation of magmas. The high ratios were not attained by addition of lead to the volcanic rocks or ores during subsequent magmatic events, such as intrusion of the Permian Pit River stock to the east or of the Cretaceous Shasta Bally batholith that crops out to the south and west and may underlie part of the district. Some values of&nbsp;</span><sup>207</sup><span>&nbsp;Pb/&nbsp;</span><sup>204</sup><span>&nbsp;Pb are sufficiently high as to suggest that West Shasta may have developed nearer a continent than was previously supposed. Lead isotope data for Quaternary volcanic rocks are somewhat more radiogenic than for Cretaceous ores and plutonic rocks. Permo-Triassic ores are again a bit less radiogenic. The isotopic differences between the Permo-Triassic and Quaternary data could be accounted for by a value for&nbsp;</span><sup>238</sup><span>&nbsp;U/&nbsp;</span><sup>204</sup><span>&nbsp;Pb of 10.42 in common source material. Using this value of&nbsp;</span><sup>238</sup><span>&nbsp;U/&nbsp;</span><sup>204</sup><span>&nbsp;Pb to calculate even further back to 400 m.y., the resulting ratios are found to fall very close to the \"best value\" for the lead isotope mixing line between the Devonian mantle and pelagic sediments. We interpret this intersection to be the \"mean value\" for the assimilated Devonian sediment lead--18.250 for&nbsp;</span><sup>206</sup><span>&nbsp;Pb/&nbsp;</span><sup>204</sup><span>&nbsp;Pb and 15.582 for&nbsp;</span><sup>207</sup><span>&nbsp;Pb/&nbsp;</span><sup>204</sup><span>&nbsp;Pb. As deduced for the lead isotope composition for the Devonian mantle at this location, the pelagic sediment, lead isotope composition also is toward the more radiogenic end of the values expected for pelagic sediments in the Devonian. Lack of sediments in the observed volcanic section of the West Shasta district suggests a submerged volcanic-arc setting (as interpreted by others for the Troodos and Samail ophiolites) rather than an island-arc situation (such as the Green Tuff area of Japan) or an incipient spreading ridge setting (that might have grown to be a subaerial Iceland). The elevated values of&nbsp;</span><sup>207</sup><span>&nbsp;Pb/&nbsp;</span><sup>204</sup><span>&nbsp;Pb for some samples suggest a submerged volcanic are whereas the exceedingly low values of thorium--which is not easily mobilized during alteration events--for both basaltic andesites and plagiorhyolites is suggestive of depleted source material such as is found for most oceanic spreading centers. Elevated values of&nbsp;</span><sup>207</sup><span>&nbsp;Pb/&nbsp;</span><sup>204</sup><span>&nbsp;Pb are exceedingly rare in midocean ridge basalts and low contents of thorium are known in island arcs, so a submerged volcanic arc is the preferred interpretation. Some similarity exists between the&nbsp;</span><sup>206</sup><span>&nbsp;Pb/&nbsp;</span><sup>204</sup><span>&nbsp;Pb values of Devonian ores having elevated values of&nbsp;</span><sup>207</sup><span>&nbsp;Pb/&nbsp;</span><sup>204</sup><span>&nbsp;Pb and those of the Permo-Triassic ores of the East Shasta district, as mentioned by Slawson in 1983. This similarity is now confirmed to be a coincidence. We find it due first of all to some incorporation of sediment lead in the magmas, followed later by some migration of radiogenic lead--probably locally derived--into the ores during subsequent events. Because there was some postdepositional lead migration into the ores, some migration of copper also into the ores cannot be excluded. Lead, especially radiogenic lead, however, is more mobile than copper. As the migrating lead is deduced to have been locally derived from the observed section rather than exotically derived, any copper added was probably locally derived also.</span></p>","language":"English","publisher":"Society of Economic Geologists","doi":"10.2113/gsecongeo.80.8.2136","issn":"03610128","usgsCitation":"Doe, B.R., Delevaux, M., and Albers, J.P., 1985, The plumbotectonics of the West Shasta mining district, eastern Klamath Mountains, California: Economic Geology, v. 80, no. 8, p. 2136-2148, https://doi.org/10.2113/gsecongeo.80.8.2136.","productDescription":"13 p.","startPage":"2136","endPage":"2148","numberOfPages":"13","costCenters":[],"links":[{"id":220457,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"80","issue":"8","noUsgsAuthors":false,"publicationDate":"1985-12-01","publicationStatus":"PW","scienceBaseUri":"505baea1e4b08c986b324221","contributors":{"authors":[{"text":"Doe, B. R.","contributorId":52173,"corporation":false,"usgs":true,"family":"Doe","given":"B.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":365040,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Delevaux, M.H.","contributorId":27853,"corporation":false,"usgs":true,"family":"Delevaux","given":"M.H.","email":"","affiliations":[],"preferred":false,"id":365039,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Albers, J. P.","contributorId":81505,"corporation":false,"usgs":true,"family":"Albers","given":"J.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":365041,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
]}