{"pageNumber":"54","pageRowStart":"1325","pageSize":"25","recordCount":2263,"records":[{"id":1014638,"text":"1014638 - 1991 - Effects of dietary aluminum on growth and composition of young Atlantic salmon","interactions":[],"lastModifiedDate":"2025-07-24T15:29:52.492665","indexId":"1014638","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3196,"text":"Progressive Fish-Culturist","active":true,"publicationSubtype":{"id":10}},"title":"Effects of dietary aluminum on growth and composition of young Atlantic salmon","docAbstract":"

A 16‐week feeding experiment was conducted to measure the effects of supplemental dietary aluminum (0, 25, 50, 100, 500, 1,000, 1,500, and 2,000 mg/kg diet) on growth, survival, feed conversion, and proximate composition of Atlantic salmon (Salmo salar), mean weight 4.8 g. No significant differences (P > 0.05) in growth, survival, or feed conversion were found among fish fed the different levels of aluminum. Body fat increased significantly in fish fed aluminum at the rate of 2,000 mg/kg of diet. Total ash was significantly lower in fish fed 1,000–2,000 mg aluminum/kg of diet than in those fed smaller amounts. Differences in concentration of individually measured minerals (aluminum, copper, iron, manganese, and magnesium) were not significant in either carcass or vertebrae of experimental fish. Supplemental dietary aluminum (up to 2,000 mg/ kg of diet) had no measurable beneficial or obvious adverse effect on fingerling Atlantic salmon.

","language":"English","publisher":"Oxford Academic","doi":"10.1577/1548-8640(1991)053%3C0007:EODAOG%3E2.3.CO;2","usgsCitation":"Poston, H.A., 1991, Effects of dietary aluminum on growth and composition of young Atlantic salmon: Progressive Fish-Culturist, v. 53, no. 1, p. 7-10, https://doi.org/10.1577/1548-8640(1991)053%3C0007:EODAOG%3E2.3.CO;2.","productDescription":"4 p.","startPage":"7","endPage":"10","numberOfPages":"4","costCenters":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"links":[{"id":132031,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"53","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a2fe4b07f02db615ca5","contributors":{"authors":[{"text":"Poston, H. A.","contributorId":21893,"corporation":false,"usgs":true,"family":"Poston","given":"H.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":320797,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":1000603,"text":"1000603 - 1991 - Heavy metal contamination of sediments in the upper connecting channels of the Great Lakes","interactions":[],"lastModifiedDate":"2016-04-25T13:31:38","indexId":"1000603","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1919,"text":"Hydrobiologia","onlineIssn":"1573-5117","printIssn":"0018-8158","active":true,"publicationSubtype":{"id":10}},"title":"Heavy metal contamination of sediments in the upper connecting channels of the Great Lakes","docAbstract":"

In 1985, sampling at 250 stations throughout the St. Marys, St. Clair, and Detroit rivers and Lake St. Clair — the connecting channels of the upper Great Lakes — revealed widespread metal contamination of the sediments. Concentrations of cadmium, chromium, copper, lead, mercury, nickel, and zinc each exceeded U.S. Environmental Protection Agency sediment pollution guidelines at one or more stations throughout the study area. Sediments were polluted more frequently by copper, nickel, zinc, and lead than by cadmium, chromium, or mercury. Sediments with the highest concentrations of metals were found (in descending order) in the Detroit River, the St. Marys River, the St. Clair River, and Lake St. Clair. Although metal contamination of sediments was most common and sediment concentrations of metals were generally highest near industrial areas, substantial contamination of sediments by metals was present in sediment deposition areas up to 60 km from any known source of pollution.

","language":"English","publisher":"Springer","doi":"10.1007/BF00024763","usgsCitation":"Nichols, S.J., Manny, B.A., Schloesser, D.W., and Edsall, T.A., 1991, Heavy metal contamination of sediments in the upper connecting channels of the Great Lakes: Hydrobiologia, v. 219, no. 1, p. 307-315, https://doi.org/10.1007/BF00024763.","productDescription":"9 p.","startPage":"307","endPage":"315","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":133225,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"219","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a6be4b07f02db63d6a1","contributors":{"authors":[{"text":"Nichols, S. Jerrine","contributorId":25887,"corporation":false,"usgs":true,"family":"Nichols","given":"S.","email":"","middleInitial":"Jerrine","affiliations":[],"preferred":false,"id":308885,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Manny, Bruce A. 0000-0002-4074-9329 bmanny@usgs.gov","orcid":"https://orcid.org/0000-0002-4074-9329","contributorId":3699,"corporation":false,"usgs":true,"family":"Manny","given":"Bruce","email":"bmanny@usgs.gov","middleInitial":"A.","affiliations":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"preferred":true,"id":308884,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Schloesser, Donald W. dschloesser@usgs.gov","contributorId":3579,"corporation":false,"usgs":true,"family":"Schloesser","given":"Donald","email":"dschloesser@usgs.gov","middleInitial":"W.","affiliations":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"preferred":true,"id":308883,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Edsall, Thomas A.","contributorId":84302,"corporation":false,"usgs":true,"family":"Edsall","given":"Thomas","email":"","middleInitial":"A.","affiliations":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"preferred":false,"id":308886,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":5222584,"text":"5222584 - 1990 - Western grebe, Aechmophorus occidentalis, wintering biology and contaminant accumulation in Commencement Bay, Puget Sound, Washington","interactions":[],"lastModifiedDate":"2023-11-14T01:24:53.49806","indexId":"5222584","displayToPublicDate":"2010-06-16T12:19:07","publicationYear":"1990","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1163,"text":"Canadian Field-Naturalist","active":true,"publicationSubtype":{"id":10}},"title":"Western grebe, Aechmophorus occidentalis, wintering biology and contaminant accumulation in Commencement Bay, Puget Sound, Washington","docAbstract":"Western Grebes wintering at the head of Commencement Bay (bordering the waterways) accumulated significant amounts of mercury, arsenic, DDE, PCBs, chlordanes, and perhaps cadmium and HCB between 17 October 1985 and 6 February 1986. No change in selenium or lead was detected, but copper declined significantly. Western Grebes were likely to accumulate even higher levels of certain contaminants because they remained in Commencement Bay for an additional 3 months after the final collection. Remige moult and bursa length were used to separate five individuals believed to represent one age class, from the remainder of the October collection. These birds, perhaps nonbreeders spending one continuous year in Puget Sound, contained the 5 highest PCB, 5 of the 8 highest DDE, and 2 of the 3 highest mercury concentrations. No evidence was found in the literature to suggest the contaminant concentrations we reported would adversely impact the Western Grebe population. As expected, lipid content of carcasses increased significantly from October (15.5%) to February (28.8%).","language":"English","publisher":"Ottawa Field-Naturalists' Club","usgsCitation":"Henny, C.J., Blus, L.J., and Grove, R.A., 1990, Western grebe, Aechmophorus occidentalis, wintering biology and contaminant accumulation in Commencement Bay, Puget Sound, Washington: Canadian Field-Naturalist, v. 104, no. 3, p. 460-472.","productDescription":"13 p.","startPage":"460","endPage":"472","numberOfPages":"13","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":194193,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"104","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49f4e4b07f02db5f08a9","contributors":{"authors":[{"text":"Henny, Charles J.","contributorId":12578,"corporation":false,"usgs":true,"family":"Henny","given":"Charles","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":336599,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Blus, L. J.","contributorId":38116,"corporation":false,"usgs":true,"family":"Blus","given":"L.","middleInitial":"J.","affiliations":[],"preferred":false,"id":336600,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Grove, R. A.","contributorId":6546,"corporation":false,"usgs":false,"family":"Grove","given":"R.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":336598,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":5223366,"text":"5223366 - 1990 - Environmental contaminant concentrations in biota from the lower Savannah River, Georgia and South Carolina","interactions":[],"lastModifiedDate":"2016-06-21T16:08:59","indexId":"5223366","displayToPublicDate":"2010-06-16T12:18:11","publicationYear":"1990","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":887,"text":"Archives of Environmental Contamination and Toxicology","active":true,"publicationSubtype":{"id":10}},"title":"Environmental contaminant concentrations in biota from the lower Savannah River, Georgia and South Carolina","docAbstract":"

Planned harbor expansion and industrial developments may adversely affect the economically important aquatic resources of the lower Savannah River, including those at the Savannah National Wildlife Refuge. To establish the present level of chemical contamination in this system, we collected a total of 102 samples of nine species of fish and fiddler crabs (Uca pugilator) from eleven sites in the lower Savannah River and on the Savannah National Wildlife Refuge, and analyzed them for concentrations of organochlorine chemicals, aliphatic and aromatic petroleum hydrocarbons, and 13 elemental contaminants: aluminum, arsenic, cadmium, chromium, cobalt, copper, iron, lead, manganese, mercury, nickel, selenium, and zinc. Residues of DDT (mainly as DDE),trans-nonachlor, dieldrin, Aroclor? 1260, mirex, and petroleum hydrocarbons were common in fish from the lower Savannah River, but concentrations were below those warranting environmental concern. In general, the concentrations of elemental contaminants also were low; however, arsenic, cadmium, and chromium concentrations were elevated in fish from river stations near the city of Savannah, and lead was elevated in samples from the National Wildlife Refuge. Contamination of the lower Savannah River by organic and elemental contaminants, as indicated by concentrations in fishes and fiddler crabs, did not appear to pose a hazard.

","language":"English","publisher":"Springer-Verlag","doi":"10.1007/BF01059818","usgsCitation":"Winger, P.V., Schultz, D., and Johnson, W., 1990, Environmental contaminant concentrations in biota from the lower Savannah River, Georgia and South Carolina: Archives of Environmental Contamination and Toxicology, v. 19, no. 1, p. 101-117, https://doi.org/10.1007/BF01059818.","productDescription":"17 p.","startPage":"101","endPage":"117","numberOfPages":"17","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":198430,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":16496,"rank":200,"type":{"id":11,"text":"Document"},"url":"https://www.springerlink.com/content/n1u53j2210331521/?p=d7eb3c4d6e2541ccb1b466cc8b8da7ce&pi=12","linkFileType":{"id":5,"text":"html"}}],"volume":"19","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b24e4b07f02db6aeabf","contributors":{"authors":[{"text":"Winger, P. V.","contributorId":43075,"corporation":false,"usgs":true,"family":"Winger","given":"P.","email":"","middleInitial":"V.","affiliations":[],"preferred":false,"id":338545,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schultz, D.P.","contributorId":106054,"corporation":false,"usgs":true,"family":"Schultz","given":"D.P.","email":"","affiliations":[],"preferred":false,"id":338546,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Johnson, W.W.","contributorId":20032,"corporation":false,"usgs":true,"family":"Johnson","given":"W.W.","email":"","affiliations":[],"preferred":false,"id":338544,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":60320,"text":"mf2138C - 1990 - Map showing distribution of copper in stream-sediment samples, Richfield 1° x 2° quadrangle, Utah","interactions":[],"lastModifiedDate":"2021-10-21T20:12:09.45464","indexId":"mf2138C","displayToPublicDate":"1994-01-01T07:00:00","publicationYear":"1990","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":"2138","chapter":"C","title":"Map showing distribution of copper in stream-sediment samples, Richfield 1° x 2° quadrangle, Utah","docAbstract":"

This map of the Richfield 1° x 2° quadrangle shows the regional distribution of copper in the less-than-0.180-mm (minus-80-mesh) fraction of stream sediments. It is part of a folio of maps of the Richfield 1° x 2° quadrangle, Utah, prepared under the Conterminuous United States Mineral Assessment Program. Other published geochemical maps in this folio are listed in the references (this publication).

\n
\n

The Richfield quadrangle is located in west-central Utah and includes the eastern part of the Pioche-Marysvale igneous and mineral belt, which extends from the vicinity of Pioche in southeastern Nevada, east-northeastward for 155 miles into central Utah. The western two-thirds of the Richfield quadrangle is part of the Basin and Range province, whereas the eastern third is part of the High Plateaus of Utah, a subprovince of the Colorado Plateau.

\n
\n

Bedrock in the northern part of the Richfield quadrangle consists predominantly of Late Proterozoic and Paleozoic sedimentary strata that were thrust eastward during the Sevier orogeny in Cretaceous time onto an autochthon of Mesozoic sedimentary rocks located 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 terrain into a series of north-trending fault blocks; the uplifted mountain areas were eroded to various degrees and the resulting debris was deposited in adjacent basins. Most of the mineral deposits in the Pioche-Marysvale mineral belt were formed as a result of igneous activity in the middle and late Cenozoic time. A more complete description of the geology and a mineral-resource appraisal of the Richfield quadrangle appears in Steven and Morris (1984 and 1987).

\n
\n

The regional sampling program was designed to define broad geochemical patterns and trends that can be utilized along with geological and geophysical data to assess the mineral-resource potential for this quadrangle. Reconnaissance geochemical surveys are valuable tools in mineral exploration, especially when used in conjunction with data obtained from other earth science disciplines. Identifying specific exploration targets generally involves additional, more detailed investigations.

","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Denver, CO","doi":"10.3133/mf2138C","usgsCitation":"Miller, W.R., Motooka, J.M., and McHugh, J.B., 1990, Map showing distribution of copper in stream-sediment samples, Richfield 1° x 2° quadrangle, Utah: U.S. Geological Survey Miscellaneous Field Studies Map 2138, 1 Plate: 41.45 x 23.99 inches, https://doi.org/10.3133/mf2138C.","productDescription":"1 Plate: 41.45 x 23.99 inches","costCenters":[],"links":[{"id":180137,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/mf2138c.jpg"},{"id":390772,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_5744.htm"},{"id":283672,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/2138-C/plate-1.pdf"}],"scale":"250000","country":"United States","state":"Utah","otherGeospatial":"Richfield 1° x 2° quadrangle","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -114,\n 38\n ],\n [\n -112,\n 38\n ],\n [\n -112,\n 39\n ],\n [\n -114,\n 39\n ],\n [\n -114,\n 38\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a9fe4b07f02db660ed3","contributors":{"authors":[{"text":"Miller, William R.","contributorId":53838,"corporation":false,"usgs":true,"family":"Miller","given":"William","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":511902,"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":511901,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"McHugh, John. B.","contributorId":116059,"corporation":false,"usgs":true,"family":"McHugh","given":"John.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":511903,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":18206,"text":"ofr90421 - 1990 - An evaluation and geochemical survey of the Farah Garan East Prospect, Southeast Asir, Kingdom of Saudi Arabia","interactions":[],"lastModifiedDate":"2015-09-22T11:25:01","indexId":"ofr90421","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1990","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":"90-421","title":"An evaluation and geochemical survey of the Farah Garan East Prospect, Southeast Asir, Kingdom of Saudi Arabia","docAbstract":"

The Farah Garan East prospect (MODS 4886) is located in the southeastern part of the Precambrian Arabian Shield of Saudi Arabia, about 15 km east-northeast of Zahran Al Janub and 1 km northeast of the ancient mines at Farah Garan. Ore minerals at the Farah Garan East prospect are pyrite, tennantite, galena, and sphalerite. These are sparsely and erratically distributed in west-dipping beds of dolomite, dolomite-talc breccia, and carbonate-sericite phyllite, and in associated breccias and zones of carbonate-altered mafic metavolcanic rocks, all of Precambrian age. Concordant beds of dolomite and carbonate-sericite phyllite are interlayered with metavolcanic rocks and are interpreted as volcanic-related submarine hydrothermal deposits of Precambrian age. Funnel-shaped bodies of dolomite-talc breccia that crop out near the north and south ends of the dolomite beds are interpreted as submarine hot-spring vent breccias. Aprons of exhalative dolomite thin laterally outward from these vents. Discordant and concordant zones of carbonate-altered metavolcanic rocks, east of and structurally below the hot-spring vents, probably represent pathways of hydrothermal circulation along networks of fractures in volcanic rocks, subjacent to these Precambrian submarine hot-spring vents.

\n

Ore minerals in outcrops, and geochemically anomalous concentrations of gold, silver, copper, lead, zinc, arsenic, antimony, and tellurium are present in carbonate-rich rocks of the hot-spring assemblage. This indicates that the ore minerals and elements were deposited originally as constituents of the hot-spring assemblage. However, exposed ore-mineral occurrences are small and sparse, and geochemical anomalies are small, irregularly distributed, and of subeconomic grade. Furthermore, weak electromagnetic anomalies do not indicate the presence of subsurface bodies of concentrated, conductive ore minerals. Therefore, no drilling is recommended.

","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr90421","usgsCitation":"Bookstrom, A.A., El Komi, M., Christian, R.P., and Bazzari, M.A., 1990, An evaluation and geochemical survey of the Farah Garan East Prospect, Southeast Asir, Kingdom of Saudi Arabia: U.S. Geological Survey Open-File Report 90-421, Report: 15 p.; Map: 28 cm., https://doi.org/10.3133/ofr90421.","productDescription":"Report: 15 p.; Map: 28 cm.","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":47570,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/1990/0421/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":150860,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1990/0421/report-thumb.jpg"},{"id":47571,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1990/0421/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\n ],\n [\n 43.5,\n 18\n ],\n [\n 44,\n 18\n ],\n [\n 44,\n 17\n ],\n [\n 43.5,\n 17\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad8e4b07f02db6849ef","contributors":{"authors":[{"text":"Bookstrom, Arthur A. 0000-0003-1336-3364 abookstrom@usgs.gov","orcid":"https://orcid.org/0000-0003-1336-3364","contributorId":1542,"corporation":false,"usgs":true,"family":"Bookstrom","given":"Arthur","email":"abookstrom@usgs.gov","middleInitial":"A.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true},{"id":5056,"text":"Office of the AD Energy and Minerals, and Environmental Health","active":true,"usgs":true}],"preferred":true,"id":178706,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"El Komi, Mohamed","contributorId":38418,"corporation":false,"usgs":true,"family":"El Komi","given":"Mohamed","email":"","affiliations":[],"preferred":false,"id":178707,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Christian, Ralph P.","contributorId":91739,"corporation":false,"usgs":true,"family":"Christian","given":"Ralph","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":178704,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Bazzari, Maher A.","contributorId":31763,"corporation":false,"usgs":true,"family":"Bazzari","given":"Maher","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":178705,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":17608,"text":"ofr90285 - 1990 - Reconnaissance geochemical exploration for gold in the Ad Darb area, Kingdom of Saudi Arabia","interactions":[],"lastModifiedDate":"2015-09-16T14:47:40","indexId":"ofr90285","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1990","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":"90-285","title":"Reconnaissance geochemical exploration for gold in the Ad Darb area, Kingdom of Saudi Arabia","docAbstract":"

Geochemical data were analyzed for 244 wadi-sediment samples in an attempt to locate gold exploration targets in late Proterozoic metasedimentary and metavolcanic rocks in the Ad Darb area of the southern Arabian Shield. The target was gold mineralization in high-alumina alteration zones of the type that occurs in the Carolina Slate Belt, eastern United States. Such a target was sought in the Ad Darb area because of the known presence of kyanite in schist of the Sabya formation, which was interpreted to be a possible indicator of late Proterozoic high-alumina hydrothermal activity in the region.

\n

Overall, metal values in the wadi-sediment samples are low. The known kyanite mineral occurrence is marked by anomalous gold and tin in three minus-80-mesh samples. The low values of the metals do not justify further exploration for the sought deposit type in the immediate vicinity, although the signature of anomalous elements in the wider region is comparable to the signature known in the Carolina Slate Belt, and is permissive of the interpretation that a diffuse hydrothermal system operated in the region during the late Proterozoic. A large concentration of polymetallic anomalies (gold, arsenic, copper, antimony, tin, tungsten, and lead) is outlined in the northeastern part of the survey area on the basis of panned-concentrate samples. The source of the concentration is unknown, and further investigations are recommended. Recommended low-priority investigation of the source of lead and zinc anomalies in the western part of the survey area would be justified as part of a larger program designed to evaluate the mineral potential of the entire belt of Sabya formation rock.

","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr90285","usgsCitation":"Samater, R., Christian, R., Johnson, P., and Bookstrom, A., 1990, Reconnaissance geochemical exploration for gold in the Ad Darb area, Kingdom of Saudi Arabia: U.S. Geological Survey Open-File Report 90-285, Report: iii, 54 p., ill., https://doi.org/10.3133/ofr90285.","productDescription":"Report: iii, 54 p., ill.","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":150790,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1990/0285/report-thumb.jpg"},{"id":46801,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1990/0285/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 42.4,\n 17.5\n ],\n [\n 42.4,\n 17.8\n ],\n [\n 42.6,\n 17.8\n ],\n [\n 42.6,\n 17.5\n ],\n [\n 42.4,\n 17.5\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae4e4b07f02db68a012","contributors":{"authors":[{"text":"Samater, R.M.","contributorId":82694,"corporation":false,"usgs":true,"family":"Samater","given":"R.M.","affiliations":[],"preferred":false,"id":177079,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Christian, R.P.","contributorId":51313,"corporation":false,"usgs":true,"family":"Christian","given":"R.P.","email":"","affiliations":[],"preferred":false,"id":177078,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Johnson, P.R.","contributorId":37332,"corporation":false,"usgs":true,"family":"Johnson","given":"P.R.","email":"","affiliations":[],"preferred":false,"id":177077,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Bookstrom, A. A.","contributorId":94681,"corporation":false,"usgs":true,"family":"Bookstrom","given":"A. A.","affiliations":[],"preferred":false,"id":177080,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":64554,"text":"i1898B - 1990 - Maps showing the distribution of copper, lead, and zinc in stream sediments, Sherbrooke and Lewiston 1° x 2° quadrangles, Maine, New Hampshire, and Vermont","interactions":[],"lastModifiedDate":"2021-10-20T21:39:28.782458","indexId":"i1898B","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1990","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":320,"text":"IMAP","code":"I","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"1898","chapter":"B","title":"Maps showing the distribution of copper, lead, and zinc in stream sediments, Sherbrooke and Lewiston 1° x 2° quadrangles, Maine, New Hampshire, and Vermont","docAbstract":"

No abstract available.

","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/i1898B","usgsCitation":"Nowlan, G., Howd, F.H., Canney, F., and Domenico, J.A., 1990, Maps showing the distribution of copper, lead, and zinc in stream sediments, Sherbrooke and Lewiston 1° x 2° quadrangles, Maine, New Hampshire, and Vermont: U.S. Geological Survey IMAP 1898, 2 Plates: 53.74 × 40.40 inches and 52.82 × 40.19 inches, https://doi.org/10.3133/i1898B.","productDescription":"2 Plates: 53.74 × 40.40 inches and 52.82 × 40.19 inches","costCenters":[],"links":[{"id":390712,"rank":5,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_9987.htm"},{"id":255017,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/imap/1898b/report-thumb.jpg"},{"id":255016,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/imap/1898b/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":255015,"rank":401,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/imap/1898b/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":255014,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/imap/1898b/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}}],"scale":"250000","country":"United States","state":"Maine, New Hampshire, Vermont","otherGeospatial":"Sherbrooke and Lewiston 1° x 2° quadrangles","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -72,44 ], [ -72,46 ], [ -70,46 ], [ -70,44 ], [ -72,44 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a1ae4b07f02db606232","contributors":{"authors":[{"text":"Nowlan, G.A.","contributorId":99131,"corporation":false,"usgs":true,"family":"Nowlan","given":"G.A.","affiliations":[],"preferred":false,"id":271392,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Howd, F. H.","contributorId":52965,"corporation":false,"usgs":true,"family":"Howd","given":"F.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":271391,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Canney, F. C.","contributorId":24790,"corporation":false,"usgs":true,"family":"Canney","given":"F. C.","affiliations":[],"preferred":false,"id":271390,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Domenico, J. A.","contributorId":12028,"corporation":false,"usgs":true,"family":"Domenico","given":"J.","middleInitial":"A.","affiliations":[],"preferred":false,"id":271389,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":27747,"text":"wri904044 - 1990 - Effects of storm-water runoff on local ground-water quality, Clarksville, Tennessee","interactions":[],"lastModifiedDate":"2012-02-02T00:08:26","indexId":"wri904044","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1990","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":"90-4044","title":"Effects of storm-water runoff on local ground-water quality, Clarksville, Tennessee","docAbstract":"Storm-related water-quality data were collected at a drainage-well site and at a spring site in Clarksville, Tennessee, to define the effects of storm-water runoff on the quality of ground water in the area. A dye-trace test verified the direct hydraulic connection between the drainage well and Mobley Spring. Samples of storm run off and spring flow were collected at these sites for nine storms during the period February to October 1988. Water samples were collected also from Mobley Spring and two other springs and two observation wells in the area during dry-weather conditions to assess the general quality of ground water in an urban karst terrain.\r\n\r\nEvaluation of the effect of storm-water runoff on the quality of local ground water is complicated by the presence of other sources of contaminants in the area Concentrations and load for most major constituents were much smaller in storm-water runoff at the drainage well than in the discharge of Mobley Spring, indicating that much of the chemical constituent load discharged from the spring comes from sources other than the drainage well. However, for some of the minor constituents associated with roadway runoff (arsenic, copper, lead, organic carbon, and oil and grease), the drainage well contributed relatively large amounts of these constituents to local ground water during storms. The close correlation between concentrations of total organic carbon and concentrations of most trace metals at the drainage-well and Mobley Spring sites indicates that these constituents are transported together. Many trace metals were flushed early during each runoff event.\r\n\r\nMean storm loads for copper, lead, zinc, and four nutrient species (total nitrogen, ammonia nitrogen, total phosphorus, and orthophosphorus) in storm-water runoff at the drainage-well site were lower than mean storm load predicted from an existing regression model. The overprediction by the model may be a result of the small size of the drainage area relative to the range of drainage areas used in the development of the models, or to the below-normal amounts of rainfall during the period of sampling for this investigation. Loads& in storm-water runoff for 22 constituents were extrapolated from sampled storms to total loads for the period February to October 1988. Calculated loads for trace metals for the period ranged from 0.030pound.s for cadmium to 12pound.s for strontium. Loads of the primary nutrients ranged from 0.97pounds for nitrite as nitrogen to 34pounds of organic nitrogen.\r\n\r\nStorm-water quality at the drainage-well and Mobley Spring sites was compared to background water quality of the local aquifer; as characterized by dry-weather samples from three springs and two observation wells in the Clarksville area. Concentrations of total-recoverable cadmium, chromium, copper, lead, and nickel were higher in many stormwater samples from both the drainage-well and Mobley Spring sites than in samples from any other site. In addition, concentrations of total organic carbon, methylene blue active substances, and total-recoverable oil and grease were generally higher in storm-water samples from the drainage-well site than in any ground-water sample.\r\n\r\nDensities of fecal coliform and fecal streptococcus bacteria and concentrations of total recoverable iron, manganese, and methylene blue active substances in storm samples from the drainage-well site exceeded the maximum contaminant levels listed in Tennessee?s drinking-water standards (1988) by as much as 2,500 and 5,500 colonies per 100 milliliters, and 2.7, 0.29, and 0.05 milligrams per liter, respectively. Densities of fecal coliform and fecal streptococcus bacteria and concentrations of total-recoverable iron, manganese, and lead in storm samples from Mobley Spring exceeded the maximum contaminant levels by as much as 500 and 4,500 colonies per 100 milliliters, and 18.7,0.65, and 0.02 milligrams per liter, respectively. For iron, manganese, and bacteria, these undesirable","language":"ENGLISH","publisher":"U.S. Geological Survey ;\r\nBooks and Open-File Reports Section [distributor],","doi":"10.3133/wri904044","usgsCitation":"Hoos, A.B., 1990, Effects of storm-water runoff on local ground-water quality, Clarksville, Tennessee: U.S. Geological Survey Water-Resources Investigations Report 90-4044, v, 57 p. :ill., maps ;28 cm., https://doi.org/10.3133/wri904044.","productDescription":"v, 57 p. :ill., maps ;28 cm.","costCenters":[],"links":[{"id":2124,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.water.usgs.gov/wri904044/","linkFileType":{"id":5,"text":"html"}},{"id":118725,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/wri_90_4044.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a09e4b07f02db5fb0be","contributors":{"authors":[{"text":"Hoos, Anne B. abhoos@usgs.gov","contributorId":2236,"corporation":false,"usgs":true,"family":"Hoos","given":"Anne","email":"abhoos@usgs.gov","middleInitial":"B.","affiliations":[],"preferred":true,"id":198634,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":25733,"text":"wri894105 - 1990 - Reconnaissance investigation of water quality, bottom sediment, and biota associated with irrigation drainage in and near Stillwater Wildlife Management Area, Churchill County, Nevada, 1986-87","interactions":[],"lastModifiedDate":"2012-02-02T00:08:13","indexId":"wri894105","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1990","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":"89-4105","title":"Reconnaissance investigation of water quality, bottom sediment, and biota associated with irrigation drainage in and near Stillwater Wildlife Management Area, Churchill County, Nevada, 1986-87","docAbstract":"A reconnaissance was initiated in 1986 to determine whether the quality of irrigation-drainage water in and near the Stillwater Wildlife Management Area, Nevada, has caused or has potential to cause harmful effects on human health, fish, wildlife, or other beneficial uses of water. Samples of surface and groundwater, bottom sediment, and biota were collected from sites upstream and downstream from the Fallon agricultural area in the Carson Desert, and analyzed for potentially toxic trace elements. Other analysis included radioactive substances, major dissolved constituents, and nutrients in water, and pesticide residues in bottom sediment and biota. In areas affected by irrigation drainage, the following constituents were found to commonly exceed baseline concentrations or recommended criteria for protection of aquatic life or propagation of wildlife: In water, arsenic, boron, dissolved solids, molybdenum, sodium, and un-ionized ammonia; in bottom sediments, arsenic, lithium, mercury, molybdenum, and selenium; and in biota, arsenic, boron, chromium, copper, mercury, selenium, and zinc. In some wetlands, selenium and mercury appeared to be biomagnified, and arsenic bioaccumulated. Pesticides contamination in bottom sediments and biota was insignificant. Adverse biological effects observed during this reconnaissance included gradual vegetative changes and species loss, fish die-offs, waterfowl disease epidemics, and persistent and unexplained deaths of migratory birds. (USGS)","language":"ENGLISH","publisher":"U.S. Geological Survey ;\r\nBooks and Open-File Reports Section [distributor],","doi":"10.3133/wri894105","usgsCitation":"Hoffman, R., Hallock, R., Rowe, T., Lico, M., Burge, H., and Thompson, S., 1990, Reconnaissance investigation of water quality, bottom sediment, and biota associated with irrigation drainage in and near Stillwater Wildlife Management Area, Churchill County, Nevada, 1986-87: U.S. Geological Survey Water-Resources Investigations Report 89-4105, viii, 150 p. :ill., map ;28 cm., https://doi.org/10.3133/wri894105.","productDescription":"viii, 150 p. :ill., map ;28 cm.","costCenters":[],"links":[{"id":157001,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1989/4105/report-thumb.jpg"},{"id":54494,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/wri/1989/4105/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":54495,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1989/4105/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a6ce4b07f02db63eb5c","contributors":{"authors":[{"text":"Hoffman, R.J.","contributorId":38582,"corporation":false,"usgs":true,"family":"Hoffman","given":"R.J.","email":"","affiliations":[],"preferred":false,"id":194842,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hallock, R.J.","contributorId":100413,"corporation":false,"usgs":true,"family":"Hallock","given":"R.J.","email":"","affiliations":[],"preferred":false,"id":194845,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Rowe, T.G.","contributorId":105732,"corporation":false,"usgs":true,"family":"Rowe","given":"T.G.","email":"","affiliations":[],"preferred":false,"id":194846,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lico, M.S.","contributorId":36573,"corporation":false,"usgs":true,"family":"Lico","given":"M.S.","affiliations":[],"preferred":false,"id":194841,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Burge, H.L.","contributorId":57104,"corporation":false,"usgs":true,"family":"Burge","given":"H.L.","email":"","affiliations":[],"preferred":false,"id":194843,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Thompson, S.P.","contributorId":66731,"corporation":false,"usgs":true,"family":"Thompson","given":"S.P.","email":"","affiliations":[],"preferred":false,"id":194844,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":49355,"text":"ofr90685B - 1990 - Aeromagnetic gridded data from two surveys flown over a buried porphyry copper deposit west of Casa Grande, Arizona","interactions":[],"lastModifiedDate":"2013-11-21T15:43:29","indexId":"ofr90685B","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1990","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":"90-685","chapter":"B","title":"Aeromagnetic gridded data from two surveys flown over a buried porphyry copper deposit west of Casa Grande, Arizona","language":"English","doi":"10.3133/ofr90685B","collaboration":"The USGS does not support this software or technical questions for the software associated with the publication.","usgsCitation":"Bankey, V., and Bracken, R.E., 1990, Aeromagnetic gridded data from two surveys flown over a buried porphyry copper deposit west of Casa Grande, Arizona: U.S. Geological Survey Open-File Report 90-685, 2 ASC Files; Title File, https://doi.org/10.3133/ofr90685B.","productDescription":"2 ASC Files; Title File","costCenters":[],"links":[{"id":179323,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":269571,"type":{"id":4,"text":"Application Site"},"url":"https://pubs.usgs.gov/of/1990/0685b/application.zip"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b01e4b07f02db698454","contributors":{"authors":[{"text":"Bankey, Viki viki@usgs.gov","contributorId":1238,"corporation":false,"usgs":true,"family":"Bankey","given":"Viki","email":"viki@usgs.gov","affiliations":[],"preferred":true,"id":239554,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bracken, Robert E. 0000-0001-7759-2743 rbracken@usgs.gov","orcid":"https://orcid.org/0000-0001-7759-2743","contributorId":2640,"corporation":false,"usgs":true,"family":"Bracken","given":"Robert","email":"rbracken@usgs.gov","middleInitial":"E.","affiliations":[{"id":35995,"text":"Geology, Geophysics, and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":239555,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":49353,"text":"ofr90685A - 1990 - Aeromagnetic gridded data from two surveys flown over a buried porphyry copper deposit west of Casa Grande, Arizona","interactions":[],"lastModifiedDate":"2012-02-02T00:11:21","indexId":"ofr90685A","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1990","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":"90-685","chapter":"A","title":"Aeromagnetic gridded data from two surveys flown over a buried porphyry copper deposit west of Casa Grande, Arizona","language":"ENGLISH","doi":"10.3133/ofr90685A","usgsCitation":"Bankey, V., and Bracken, R.E., 1990, Aeromagnetic gridded data from two surveys flown over a buried porphyry copper deposit west of Casa Grande, Arizona: U.S. Geological Survey Open-File Report 90-685, 4 leaves : map ; 28 cm., https://doi.org/10.3133/ofr90685A.","productDescription":"4 leaves : map ; 28 cm.","costCenters":[],"links":[{"id":179254,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1990/0685a/report-thumb.jpg"},{"id":86016,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1990/0685a/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b01e4b07f02db69844e","contributors":{"authors":[{"text":"Bankey, Viki viki@usgs.gov","contributorId":1238,"corporation":false,"usgs":true,"family":"Bankey","given":"Viki","email":"viki@usgs.gov","affiliations":[],"preferred":true,"id":239551,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bracken, Robert E. 0000-0001-7759-2743 rbracken@usgs.gov","orcid":"https://orcid.org/0000-0001-7759-2743","contributorId":2640,"corporation":false,"usgs":true,"family":"Bracken","given":"Robert","email":"rbracken@usgs.gov","middleInitial":"E.","affiliations":[{"id":35995,"text":"Geology, Geophysics, and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":239552,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":47482,"text":"b1737E - 1990 - Mineral Resources of the Wabayuma Peak Wilderness Study Area, Mohave County, Arizona","interactions":[{"subject":{"id":47482,"text":"b1737E - 1990 - Mineral Resources of the Wabayuma Peak Wilderness Study Area, Mohave County, Arizona","indexId":"b1737E","publicationYear":"1990","noYear":false,"chapter":"E","title":"Mineral Resources of the Wabayuma Peak Wilderness Study Area, Mohave County, Arizona"},"predicate":"IS_PART_OF","object":{"id":39795,"text":"b1737 - 1989 - Mineral resources of wilderness study areas: Black Mountains region, Arizona","indexId":"b1737","publicationYear":"1989","noYear":false,"title":"Mineral resources of wilderness study areas: Black Mountains region, Arizona"},"id":1}],"isPartOf":{"id":39795,"text":"b1737 - 1989 - Mineral resources of wilderness study areas: Black Mountains region, Arizona","indexId":"b1737","publicationYear":"1989","noYear":false,"title":"Mineral resources of wilderness study areas: Black Mountains region, Arizona"},"lastModifiedDate":"2017-08-09T08:50:14","indexId":"b1737E","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1990","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":306,"text":"Bulletin","code":"B","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"1737","chapter":"E","title":"Mineral Resources of the Wabayuma Peak Wilderness Study Area, Mohave County, Arizona","docAbstract":"The Wabayuma Peak Wilderness Study Area (AZ-020-037/043), for which a mineral survey was requested by the U.S. Bureau of land Management, encompasses 40,118 acres in northwestern Arizona. Fieldwork was carried out in 1986-88 by the U.S. Bureau of Mines and the U.S. Geological Survey to appraise the identified (known) resources and assess the mineral resource potential (undiscovered) of the wilderness study area. Within the Wabayuma Peak Wilderness Study Area are 14 private parcels of land totaling 1,315 acres. The Wabayuma Peak Wilderness Study Area, including the 14 private parcels of land, is herein referred to as the 'wilderness study area' or the 'study area'. The Boriana, Antler, and Copper World mines lie near the east boundary of the study area. The Boriana mine was a major tungsten-producing mine of the United States during World War II. The Antler and Copper World mines produced relatively small amounts of copper and zinc prior to 1970.\r\n\r\nCopper and zinc were mined within 100 ft of the study area at the Antler mine. The Antler mine contains subeconomic resources of 350,000 to 400,000 short tons of copper-zinc ore; a minimum of 2,000 short tons, at grades of 1 to 4 percent copper and 1 to 2 percent zinc, lie within the study area. No other mineral resources were identified within the study area.\r\n\r\nFour small tracts in the eastern part and one in the central part of the study area have high resource potential for copper, zinc, and minor lead, silver, and gold in massive sulfide deposits. A large central tract and two eastern tracts have moderate resource potential for the same metals. An eastern and a western tract within the wilderness study area have high resource potential for tungsten, copper, and combinations of beryllium, gold, silver, arsenic, bismuth, molybdenum, tin, indium, thorium, niobium, yttrium, lanthanum, scandium, tantalum, rhenium, lead, zinc, and iron in granite-related tungsten-polymetallic vein deposits. Most of the rest of the study area has moderate resource potential for these metals. A northern tract in the study area has moderate resource potential for gold, copper, and combinations of silver, zinc, lead, tungsten, and molybdenum in polymetallic vein deposits of several types.","language":"ENGLISH","publisher":"U.S. Geological Survey","doi":"10.3133/b1737E","usgsCitation":"Conway, C.M., Hassemer, J.R., Knepper, D.H., Pitkin, J.A., Jachens, R.C., and Chatman, M.L., 1990, Mineral Resources of the Wabayuma Peak Wilderness Study Area, Mohave County, Arizona: U.S. Geological Survey Bulletin 1737, Report: viii, E1-E52; 1 plate in pocket, https://doi.org/10.3133/b1737E.","productDescription":"Report: viii, E1-E52; 1 plate in pocket","additionalOnlineFiles":"Y","costCenters":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"links":[{"id":135733,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/bul/1737e/report-thumb.jpg"},{"id":84422,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/bul/1737e/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":84423,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/bul/1737e/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -114.5,34.583333333333336 ], [ -114.5,35.25 ], [ -113.5,35.25 ], [ -113.5,34.583333333333336 ], [ -114.5,34.583333333333336 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a61e4b07f02db6357de","contributors":{"authors":[{"text":"Conway, Clay M.","contributorId":106860,"corporation":false,"usgs":true,"family":"Conway","given":"Clay","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":235500,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hassemer, Jerry R.","contributorId":79448,"corporation":false,"usgs":true,"family":"Hassemer","given":"Jerry","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":235497,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Knepper, Daniel H. dknepper@usgs.gov","contributorId":1242,"corporation":false,"usgs":true,"family":"Knepper","given":"Daniel","email":"dknepper@usgs.gov","middleInitial":"H.","affiliations":[],"preferred":true,"id":235496,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Pitkin, James A.","contributorId":96651,"corporation":false,"usgs":true,"family":"Pitkin","given":"James","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":235498,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Jachens, Robert C. jachens@usgs.gov","contributorId":1180,"corporation":false,"usgs":true,"family":"Jachens","given":"Robert","email":"jachens@usgs.gov","middleInitial":"C.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":235495,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Chatman, Mark L.","contributorId":97878,"corporation":false,"usgs":true,"family":"Chatman","given":"Mark","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":235499,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":47480,"text":"b1737C - 1990 - Mineral Resources of the Black Mountains North and Burns Spring Wilderness Study Areas, Mohave County, Arizona","interactions":[{"subject":{"id":47480,"text":"b1737C - 1990 - Mineral Resources of the Black Mountains North and Burns Spring Wilderness Study Areas, Mohave County, Arizona","indexId":"b1737C","publicationYear":"1990","noYear":false,"chapter":"C","title":"Mineral Resources of the Black Mountains North and Burns Spring Wilderness Study Areas, Mohave County, Arizona"},"predicate":"IS_PART_OF","object":{"id":39795,"text":"b1737 - 1989 - Mineral resources of wilderness study areas: Black Mountains region, Arizona","indexId":"b1737","publicationYear":"1989","noYear":false,"title":"Mineral resources of wilderness study areas: Black Mountains region, Arizona"},"id":1}],"isPartOf":{"id":39795,"text":"b1737 - 1989 - Mineral resources of wilderness study areas: Black Mountains region, Arizona","indexId":"b1737","publicationYear":"1989","noYear":false,"title":"Mineral resources of wilderness study areas: Black Mountains region, Arizona"},"lastModifiedDate":"2017-08-09T08:50:29","indexId":"b1737C","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1990","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":306,"text":"Bulletin","code":"B","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"1737","chapter":"C","title":"Mineral Resources of the Black Mountains North and Burns Spring Wilderness Study Areas, Mohave County, Arizona","docAbstract":"At the request of the U.S. Bureau of Land Management, approximately 19,300 acres of the Black Mountains North Wilderness Study Area (AZ-020-009) and 23,310 acres of the Burns Spring Wilderness Study Area (AZ-02D-010) were evaluated for mineral resources and mineral resource potential. In this report, the area studied is referred to, collectively or individually, as the 'wilderness study area' or simply 'the study area'; any reference to the Black Mountains North or Burns Spring Wilderness Study Areas refers only to that part of the wilderness study area for which a mineral survey was requested by the U.S. Bureau of Land Management. The study area is located in western Arizona, about 30 mi northwest of Kingman. There are no identified resources in the study area. An area surrounding the Portland mine and including the southern part of the Black Mountains North Wilderness Study Area and the extreme northwestern part of the Burns Spring Wilderness Study Area has high resource potential for gold and moderate resource potential for silver, lead, and mercury. The area surrounding this and including much of the northern part of the Burns Spring Wilderness Study Area has moderate potential for gold, silver, and lead. The northeastern corner of the Black Mountains North Wilderness Study Area has moderate potential for gold and low potential for silver, copper, and molybdenum resources. The central part, including the narrow strip of land just west of the central part, of the Black Mountains North Wilderness Study Area and the southern and extreme eastern parts of the Burns Spring Wilderness Study Area have low resource potential for gold. The central and southern parts of the Black Mountains North Wilderness Study Area and all but the southwestern part of the Burns Spring Wilderness Study Area have moderate resource potential for perlite. Moderate resource potential for zeolites is assigned to a large area around the Portland mine that includes parts of both study areas, to a narrow strip of land just west of the central part of the Black Mountains North Wilderness Study Area, and to all but the southwest corner of the Burns Spring Wilderness Study Area. There is no potential for oil and gas in either study area. Sand and gravel are present in both study areas, but abundant quantities of these resources are available closer to existing markets.","language":"ENGLISH","publisher":"U.S. Geological Survey","doi":"10.3133/b1737C","usgsCitation":"Conrad, J.E., Hill, R., Jachens, R.C., and Neubert, J.T., 1990, Mineral Resources of the Black Mountains North and Burns Spring Wilderness Study Areas, Mohave County, Arizona: U.S. Geological Survey Bulletin 1737, Report: vi, C1-C22; 1 plate in pocket, https://doi.org/10.3133/b1737C.","productDescription":"Report: vi, C1-C22; 1 plate in pocket","costCenters":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"links":[{"id":84419,"rank":400,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/bul/1737c/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":84420,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/bul/1737c/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":172281,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/bul/1737c/report-thumb.jpg"}],"geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -114.75,35 ], [ -114.75,35.75 ], [ -114,35.75 ], [ -114,35 ], [ -114.75,35 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a61e4b07f02db6357a6","contributors":{"authors":[{"text":"Conrad, James E. 0000-0001-6655-694X jconrad@usgs.gov","orcid":"https://orcid.org/0000-0001-6655-694X","contributorId":2316,"corporation":false,"usgs":true,"family":"Conrad","given":"James","email":"jconrad@usgs.gov","middleInitial":"E.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":235484,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hill, Randall H.","contributorId":46069,"corporation":false,"usgs":true,"family":"Hill","given":"Randall H.","affiliations":[],"preferred":false,"id":235485,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Jachens, Robert C. jachens@usgs.gov","contributorId":1180,"corporation":false,"usgs":true,"family":"Jachens","given":"Robert","email":"jachens@usgs.gov","middleInitial":"C.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":235483,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Neubert, John T.","contributorId":57137,"corporation":false,"usgs":true,"family":"Neubert","given":"John","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":235486,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":33287,"text":"b1857E - 1990 - Gold in porphyry copper systems","interactions":[{"subject":{"id":33287,"text":"b1857E - 1990 - Gold in porphyry copper systems","indexId":"b1857E","publicationYear":"1990","noYear":false,"chapter":"E","title":"Gold in porphyry copper systems"},"predicate":"IS_PART_OF","object":{"id":33277,"text":"b1857 - 1988 - Geology and resources of gold in the United States","indexId":"b1857","publicationYear":"1988","noYear":false,"title":"Geology and resources of gold in the United States"},"id":1}],"isPartOf":{"id":33277,"text":"b1857 - 1988 - Geology and resources of gold in the United States","indexId":"b1857","publicationYear":"1988","noYear":false,"title":"Geology and resources of gold in the United States"},"lastModifiedDate":"2025-02-28T19:10:36.289773","indexId":"b1857E","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1990","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":306,"text":"Bulletin","code":"B","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"1857","chapter":"E","title":"Gold in porphyry copper systems","docAbstract":"

No abstract available.

","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Geology and resources of gold in the United States (Bulletin 1857)","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/b1857E","usgsCitation":"Tooker, E.W., James, L.P., Theodore, T.G., Howe, S.S., Blake, D.W., Shawe, D.R., Ashley, R.P., and Carter, L.M., 1990, Gold in porphyry copper systems: U.S. Geological Survey Bulletin 1857, vi, 55 p., https://doi.org/10.3133/b1857E.","productDescription":"vi, 55 p.","costCenters":[],"links":[{"id":482697,"rank":6,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_22014.htm","text":"The Tomboy - Minnie gold deposits at Copper Canyon, Lander County, Nevada","linkFileType":{"id":5,"text":"html"}},{"id":482696,"rank":5,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_22013.htm","text":"Gold in the Ely (Robinson) copper district","linkFileType":{"id":5,"text":"html"}},{"id":482695,"rank":4,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_22012.htm","text":"Gold in the Butte district, Montana","linkFileType":{"id":5,"text":"html"}},{"id":161023,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/bul/1857e/report-thumb.jpg"},{"id":61069,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/bul/1857e/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":404606,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_22011.htm","text":"Gold in the Bingham district, Utah","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4abde4b07f02db674099","contributors":{"authors":[{"text":"Tooker, Edwin Wilson","contributorId":33295,"corporation":false,"usgs":true,"family":"Tooker","given":"Edwin","email":"","middleInitial":"Wilson","affiliations":[],"preferred":false,"id":210352,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"James, L. P.","contributorId":67134,"corporation":false,"usgs":true,"family":"James","given":"L.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":210356,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Theodore, T. G.","contributorId":38122,"corporation":false,"usgs":true,"family":"Theodore","given":"T.","middleInitial":"G.","affiliations":[],"preferred":false,"id":210353,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Howe, S. S.","contributorId":103293,"corporation":false,"usgs":true,"family":"Howe","given":"S.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":210358,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Blake, D. W.","contributorId":77976,"corporation":false,"usgs":true,"family":"Blake","given":"D.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":210357,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Shawe, D. R.","contributorId":6863,"corporation":false,"usgs":true,"family":"Shawe","given":"D.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":210351,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Ashley, R. P.","contributorId":50513,"corporation":false,"usgs":true,"family":"Ashley","given":"R.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":210355,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Carter, L. M. H.","contributorId":50494,"corporation":false,"usgs":true,"family":"Carter","given":"L.","email":"","middleInitial":"M. H.","affiliations":[],"preferred":false,"id":210354,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}} ,{"id":39844,"text":"b1805 - 1990 - Mineral resources of the Elkhorn Wilderness Study Area, Broadwater and Jefferson Counties, Montana","interactions":[],"lastModifiedDate":"2022-12-30T22:18:07.505489","indexId":"b1805","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1990","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":306,"text":"Bulletin","code":"B","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"1805","title":"Mineral resources of the Elkhorn Wilderness Study Area, Broadwater and Jefferson Counties, Montana","docAbstract":"

The Elkhorn Wilderness Study Area in west-central Montana has a moderate to high potential for resources of porphyry-type copper and molybdenum in the western part of the area, and a moderate to high potential for resources of gold, silver, lead, and zinc in replacement and vein deposits in the eastern part of the area. No evidence of potential oil, gas, and geothermal resources was identified in this study.

","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/b1805","usgsCitation":"Greenwood, W., Ludington, S., Miller, W.R., Hanna, W.F., Wenrich, K.J., Suits, V.J., and McHugh, J., 1990, Mineral resources of the Elkhorn Wilderness Study Area, Broadwater and Jefferson Counties, Montana: U.S. Geological Survey Bulletin 1805, Report: vii, 37 p.; 5 plates: 39.22 x 31.30 inches or smaller, https://doi.org/10.3133/b1805.","productDescription":"Report: vii, 37 p.; 5 plates: 39.22 x 31.30 inches or smaller","costCenters":[],"links":[{"id":67713,"rank":7,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/bul/1805/report.pdf","text":"Report","linkFileType":{"id":1,"text":"pdf"},"description":"Report"},{"id":170546,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/bul/1805/report-thumb.jpg"},{"id":340386,"rank":6,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/bul/1805/plate-5.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":340385,"rank":5,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/bul/1805/plate-4.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":411262,"rank":8,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_21947.htm","linkFileType":{"id":5,"text":"html"}},{"id":340384,"rank":4,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/bul/1805/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":340383,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/bul/1805/plate-3.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":340382,"rank":2,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/bul/1805/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Montana","county":"Broadwater County, Jefferson County","otherGeospatial":"Elkhorn Wilderness Study Area","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -112.082,\n 46.25\n ],\n [\n -111.661,\n 46.25\n ],\n [\n -111.661,\n 46.544\n ],\n [\n -112.082,\n 46.544\n ],\n [\n -112.082,\n 46.25\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b07e4b07f02db69ad63","contributors":{"authors":[{"text":"Greenwood, William R.","contributorId":53789,"corporation":false,"usgs":true,"family":"Greenwood","given":"William R.","affiliations":[],"preferred":false,"id":222388,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ludington, Steve","contributorId":106848,"corporation":false,"usgs":true,"family":"Ludington","given":"Steve","affiliations":[],"preferred":false,"id":222391,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Miller, William R.","contributorId":53838,"corporation":false,"usgs":true,"family":"Miller","given":"William","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":222390,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hanna, William F.","contributorId":104045,"corporation":false,"usgs":true,"family":"Hanna","given":"William","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":222385,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Wenrich, Karen J.","contributorId":19177,"corporation":false,"usgs":true,"family":"Wenrich","given":"Karen","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":222386,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Suits, Vivian J.","contributorId":84765,"corporation":false,"usgs":true,"family":"Suits","given":"Vivian","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":222387,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"McHugh, John B.","contributorId":64651,"corporation":false,"usgs":true,"family":"McHugh","given":"John B.","affiliations":[],"preferred":false,"id":222389,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":19282,"text":"ofr90484 - 1990 - A preliminary study of thermometry and metal sources of the Spar Lake strata-bound copper-silver deposit, Belt Supergroup, Montana","interactions":[],"lastModifiedDate":"2012-02-02T00:07:28","indexId":"ofr90484","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"1990","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":"90-484","title":"A preliminary study of thermometry and metal sources of the Spar Lake strata-bound copper-silver deposit, Belt Supergroup, Montana","language":"ENGLISH","publisher":"U.S. Geological Survey,","doi":"10.3133/ofr90484","usgsCitation":"Hayes, T.S., 1990, A preliminary study of thermometry and metal sources of the Spar Lake strata-bound copper-silver deposit, Belt Supergroup, Montana: U.S. Geological Survey Open-File Report 90-484, ii, 30 p. :ill. ;28 cm., https://doi.org/10.3133/ofr90484.","productDescription":"ii, 30 p. :ill. ;28 cm.","costCenters":[],"links":[{"id":151701,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1990/0484/report-thumb.jpg"},{"id":48742,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1990/0484/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b1de4b07f02db6a9aef","contributors":{"authors":[{"text":"Hayes, T. 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K.","contributorId":45293,"corporation":false,"usgs":true,"family":"Theobald","given":"P. K.","affiliations":[],"preferred":false,"id":213564,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70178182,"text":"70178182 - 1990 - Comparative toxicity of inorganic contaminants released by placer mining to early life stages of salmonids","interactions":[],"lastModifiedDate":"2016-11-04T14:12:48","indexId":"70178182","displayToPublicDate":"1990-12-01T00:00:00","publicationYear":"1990","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1480,"text":"Ecotoxicology and Environmental Safety","active":true,"publicationSubtype":{"id":10}},"title":"Comparative toxicity of inorganic contaminants released by placer mining to early life stages of salmonids","docAbstract":"

The acute toxicities of four trace inorganics associated with placer mining were determined, individually and in environmentally relevant mixtures, to early life stages of Arctic grayling (Thymallus arcticus) from Alaska and Montana, coho salmon (Oncorhynchus kitsutch) from Alaska and Washington, and rainbow trout (Oncorhynchus mykiss) from Montana. The descending rank order of toxicity to all species and life stages was copper > zinc > lead > arsenic. For each of the three species, sensitivity to the inorganics was greater in juveniles than in alvenins or in swim-up fry. Arctic grayling from Alaska were more sensitive than the other species tested, including Arctic grayling from Montana. For Arctic grayling, sensitivity to all four inorganics was significantly greater in swim-up fry from Alaska than in alevins from Montana, and sensitivity to arsenic and copper was significantly greater in juveniles from Alaska than in juveniles from Montana. In tests with environmentally relevant mixtures (based on ratios of concentrations measured in streams with placer mining) of these four inorganics, copper was identified as the major toxic component because it accounted for ⩾97% of the summed toxic units of the mixture, and an equitoxic mixture of these inorganics showed less-than-additive toxicity. Total and total recoverable copper concentrations reported in five Alaskan streams with active placer mines were higher than the acutely toxic concentrations, either individually or in mixtures, that the authors found to be acutely toxic to Arctic grayling and coho salmon from Alaska. However, caution should be used when comparing our results obtained in “clear” water to field situations, because speciation and toxicity of these inorganics may be altered in the presence of sediments suspended by placer mining activities.

","language":"English","publisher":"Elsevier","doi":"10.1016/0147-6513(90)90010-3","usgsCitation":"Buhl, K.J., and Hamilton, S., 1990, Comparative toxicity of inorganic contaminants released by placer mining to early life stages of salmonids: Ecotoxicology and Environmental Safety, v. 20, no. 3, p. 325-342, https://doi.org/10.1016/0147-6513(90)90010-3.","productDescription":"18 p.","startPage":"325","endPage":"342","costCenters":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"links":[{"id":330772,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"20","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"581d9e2ee4b0dee4cc90cbff","contributors":{"authors":[{"text":"Buhl, Kevin J. 0000-0002-9963-2352 kevin_buhl@usgs.gov","orcid":"https://orcid.org/0000-0002-9963-2352","contributorId":1396,"corporation":false,"usgs":true,"family":"Buhl","given":"Kevin","email":"kevin_buhl@usgs.gov","middleInitial":"J.","affiliations":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"preferred":true,"id":653162,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hamilton, Steven J.","contributorId":174108,"corporation":false,"usgs":false,"family":"Hamilton","given":"Steven J.","affiliations":[],"preferred":false,"id":653163,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70242605,"text":"70242605 - 1990 - Microbial control of silver mineralization at a sea-floor hydrothermal site on the northern Gorda Ridge","interactions":[],"lastModifiedDate":"2023-04-10T21:37:26.384742","indexId":"70242605","displayToPublicDate":"1990-11-08T16:30:38","publicationYear":"1990","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2840,"text":"Nature","active":true,"publicationSubtype":{"id":10}},"title":"Microbial control of silver mineralization at a sea-floor hydrothermal site on the northern Gorda Ridge","docAbstract":"

THE Sea Cliff hydrothermal field, on the northern Gorda Ridge, contains mounds and chimneys of hydrothermally precipitated sulphide and sulphate minerals typical of sea-floor hydrothermal vent sites1. In addition, large areas of the sea floor are covered by subhorizontal hydrothermal crusts. Samples of the crust recovered by submersible are composed of intensely altered fragments of basalt and basaltic hyaloclastite cemented by amorphous silica and chalcedony with less abundant barite, and minor amounts of base-metal sulphide minerals2. Some surfaces of the crust were formerly colonized by bacterial mats, which are locally preserved by replacement and overgrowth of the bacterial filaments by metal sulphide minerals and amorphous silica. The bacterial filaments are selectively replaced by prousite (Ag3AsS3), pearceite3(Ag14.7–xCu1.3+xAs2S11), chalcopyrite (CuFeS2) and rarely by galena (PbS). Our observations suggest that bacterially mediated processes selectively precipitate silver, arsenic and copper, and that biological processes may contribute to precious-metal enrichment in some sea-floor hydrothermal base-metal sulphide deposits.

","language":"English","publisher":"Springer","doi":"10.1038/348155a0","usgsCitation":"Zierenberg, R.A., and Schiffman, P., 1990, Microbial control of silver mineralization at a sea-floor hydrothermal site on the northern Gorda Ridge: Nature, v. 348, p. 155-157, https://doi.org/10.1038/348155a0.","productDescription":"3 p.","startPage":"155","endPage":"157","costCenters":[],"links":[{"id":415550,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California, Oregon","otherGeospatial":"Gorda Ridge, Pacific Ocean","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -124.03723484807483,\n 40.39689408192942\n ],\n [\n -124.03723484807483,\n 42.8586708153079\n ],\n [\n -127.93026920048419,\n 42.8586708153079\n ],\n [\n -127.93026920048419,\n 40.39689408192942\n ],\n [\n -124.03723484807483,\n 40.39689408192942\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"348","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Zierenberg, Robert A.","contributorId":91883,"corporation":false,"usgs":true,"family":"Zierenberg","given":"Robert","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":869088,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schiffman, Peter","contributorId":40119,"corporation":false,"usgs":true,"family":"Schiffman","given":"Peter","email":"","affiliations":[],"preferred":false,"id":869089,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70016141,"text":"70016141 - 1990 - Microbial control of silver mineralization at a sea-floor hydrothermal site on the northern Gorda Ridge","interactions":[],"lastModifiedDate":"2025-05-30T16:39:33.706273","indexId":"70016141","displayToPublicDate":"1990-11-08T00:00:00","publicationYear":"1990","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2840,"text":"Nature","active":true,"publicationSubtype":{"id":10}},"title":"Microbial control of silver mineralization at a sea-floor hydrothermal site on the northern Gorda Ridge","docAbstract":"

The Sea Cliff hydrothermal field, on the northern Gorda Ridge, contains mounds and chimneys of hydrothermally precipitated sulphide and sulphate minerals typical of sea-floor hydrothermal vent sites1. In addition, large areas of the sea floor are covered by subhorizontal hydrothermal crusts. Samples of the crust recovered by submersible are composed of intensely altered fragments of basalt and basaltic hyaloclastite cemented by amorphous silica and chalcedony with less abundant barite, and minor amounts of base-metal sulphide minerals2. Some surfaces of the crust were formerly colonized by bacterial mats, which are locally preserved by replacement and overgrowth of the bacterial filaments by metal sulphide minerals and amorphous silica. The bacterial filaments are selectively replaced by prousite (Ag3AsS3), pearceite3(Ag14.7–xCu1.3+xAs2S11), chalcopyrite (CuFeS2) and rarely by galena (PbS). Our observations suggest that bacterially mediated processes selectively precipitate silver, arsenic and copper, and that biological processes may contribute to precious-metal enrichment in some sea-floor hydrothermal base-metal sulphide deposits.

","language":"English","publisher":"Springer Nature","doi":"10.1038/348155a0","issn":"00280836","usgsCitation":"Zierenberg, R., and Schiffmant, P., 1990, Microbial control of silver mineralization at a sea-floor hydrothermal site on the northern Gorda Ridge: Nature, v. 348, no. 6297, p. 155-157, https://doi.org/10.1038/348155a0.","productDescription":"3 p.","startPage":"155","endPage":"157","costCenters":[],"links":[{"id":222783,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"348","issue":"6297","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a5648e4b0c8380cd6d4aa","contributors":{"authors":[{"text":"Zierenberg, R.A.","contributorId":8998,"corporation":false,"usgs":true,"family":"Zierenberg","given":"R.A.","email":"","affiliations":[],"preferred":false,"id":372648,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schiffmant, Peter","contributorId":51016,"corporation":false,"usgs":true,"family":"Schiffmant","given":"Peter","affiliations":[],"preferred":false,"id":372649,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70174001,"text":"70174001 - 1990 - Selenium and other elements in juvenile striped bass from the San Joaquin Valley and San Francisco Estuary, California","interactions":[],"lastModifiedDate":"2018-09-25T11:53:10","indexId":"70174001","displayToPublicDate":"1990-09-01T00:00:00","publicationYear":"1990","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":887,"text":"Archives of Environmental Contamination and Toxicology","active":true,"publicationSubtype":{"id":10}},"title":"Selenium and other elements in juvenile striped bass from the San Joaquin Valley and San Francisco Estuary, California","docAbstract":"

Concentrations of selenium and other trace elements were determined in 55 whole body samples of juvenile anadromous striped bass (Morone saxatilis) from the San Joaquin Valley and San Francisco Estuary, California. The fish (≤1 yr old—the predominant life stage in the San Joaquin Valley) were collected in September–December 1986 from 19 sites in the Valley and 3 sites in the Estuary, and analyzed for the following elements: aluminum (Al), arsenic (As), boron (B), barium (Ba), beryllium (Be), cadmium (Cd), chromium (Cr), copper (Cu), iron (Fe), mercury (Hg), magnesium (Mg), molybdenum (Mo), nickel (Ni), lead (Pb), selenium (Se), strontium (Sr), vanadium (V), and zinc (Zn). When compared to concentrations in whole freshwater fish measured by surveys from other waters, a few samples contained higher levels, of As, Cd, Cu, Pb, and Se. The median concentrations of Al, As, Cu, Fe, Mg, Se, and Sr also differed significantly (P⩽0.05) among sites. However, only Se concentrations were highest (up to 7.9 μg/g dry weight) in samples from Valley sites exposed to agricultural subsurface (tile) drainwater; concentrations were lower in samples collected elsewhere. Water quality variables—especially those strongly influenced by tile drainwater (conductivity, total dissolved solids, total alkalinity, and total hardness)—were also significantly correlated (P⩽0.05) with Se concentrations in fish. Selenium concentrations in striped bass from the Estuary were only one-fourth to one-half the concentrations measured in the most contaminated fish from the San Joaquin River.

","language":"English","publisher":"Springer-Verlag","doi":"10.1007/BF01183990","usgsCitation":"Saiki, M.K., and Palawski, D.U., 1990, Selenium and other elements in juvenile striped bass from the San Joaquin Valley and San Francisco Estuary, California: Archives of Environmental Contamination and Toxicology, v. 19, no. 5, p. 717-730, https://doi.org/10.1007/BF01183990.","productDescription":"14 p.","startPage":"717","endPage":"730","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true},{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"links":[{"id":324179,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"San Francisco Estuary, San Joaquin Valley","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -122.25036621093749,\n 38.16047628099622\n ],\n [\n -121.7120361328125,\n 38.302869955150044\n ],\n [\n -121.4373779296875,\n 38.31149091244452\n ],\n [\n -121.3604736328125,\n 37.90953361677018\n ],\n [\n -121.497802734375,\n 37.75334401310656\n ],\n [\n -122.178955078125,\n 37.97884504049713\n ],\n [\n -122.27783203125,\n 37.98750437106374\n ],\n [\n -122.29980468749999,\n 38.12159327165922\n ],\n [\n -122.25036621093749,\n 38.16047628099622\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"19","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"576a654ae4b07657d1a11e79","contributors":{"authors":[{"text":"Saiki, Michael K.","contributorId":54671,"corporation":false,"usgs":true,"family":"Saiki","given":"Michael","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":640186,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Palawski, Donald U.","contributorId":17384,"corporation":false,"usgs":true,"family":"Palawski","given":"Donald","email":"","middleInitial":"U.","affiliations":[],"preferred":false,"id":640187,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70242608,"text":"70242608 - 1990 - Development of slope valleys in the glacimarine environment of a complex subduction zone, Northern Gulf of Alaska","interactions":[],"lastModifiedDate":"2023-04-10T22:07:51.756827","indexId":"70242608","displayToPublicDate":"1990-01-01T16:59:29","publicationYear":"1990","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"seriesTitle":{"id":11125,"text":"Special Papers of the Geological Society of London","active":true,"publicationSubtype":{"id":24}},"title":"Development of slope valleys in the glacimarine environment of a complex subduction zone, Northern Gulf of Alaska","docAbstract":"

Morphological, seismic-reflection, and sedimentological evidence indicates that glacial ice tongues cut large sea valleys into the Gulf of Alaska continental shelf during the Pleistocene. During the Holocene, glacially-derived sediments from the Copper River and other meltwater streams have been prograding seaward across the shelf, covering the glacial and glacimarine upper Yakataga diamicts that blanketed the shelf and accumulated on the upper slope seaward of the sea valleys during the Pleistocene. GLORIA imagery near Middleton Island provides a new perspective on the glacimarine depositional environment on the continental slope in a collision zone between the Pacific and North American plates. Southwest of Middleton Island, along the subduction margin, sinuous valleys funnel sediment around shelf-edge-parallel, subduction-created, anticlinal ridges that have deflected and locally trapped glacimarine sediment. The slope south and southeast of Middleton Island where oblique convergence occurs, is incised by dendritic, erosional gulley systems, contains no compressional ridges, and thus, the apparently active sediment pathways to the trench are unrestricted. However, below the sea valley mouths, apparently both glacial and glacimarine sediments blanket the upper slope, covering any dendritic gulley systems that may have formed during or since the Pleistocene low stands of sea level.

","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Glacimarine environments: Processes and sediments","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":"Geological Society of London","doi":"10.1144/GSL.SP.1990.053.01.08","usgsCitation":"Carlson, P.R., Bruns, T.R., and Fisher, M.A., 1990, Development of slope valleys in the glacimarine environment of a complex subduction zone, Northern Gulf of Alaska, chap. of Glacimarine environments: Processes and sediments: Special Papers of the Geological Society of London, v. 53, p. 139-153, https://doi.org/10.1144/GSL.SP.1990.053.01.08.","productDescription":"15 p.","startPage":"139","endPage":"153","costCenters":[],"links":[{"id":415554,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Gulf of Alaska","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -159.46333784578474,\n 55.99380039699838\n ],\n [\n -157.72071305438067,\n 54.20933212108787\n ],\n [\n -146.06460588664132,\n 56.68751606289206\n ],\n [\n -139.06166845421927,\n 60.00240797235887\n ],\n [\n -141.17277564509777,\n 60.28930417358964\n ],\n [\n -143.90997414424692,\n 60.39453079706706\n ],\n [\n -147.37320093646488,\n 61.440839169936226\n ],\n [\n -149.08221676136833,\n 61.05217541228859\n ],\n [\n -150.21613702671002,\n 61.589144149275086\n ],\n [\n -151.83309591621628,\n 61.1531161634305\n ],\n [\n -154.6135005061479,\n 59.17719595692938\n ],\n [\n -153.94277210007465,\n 58.75481140488384\n ],\n [\n -159.46333784578474,\n 55.99380039699838\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"53","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"editors":[{"text":"Dowdeswell, Julian A.","contributorId":304056,"corporation":false,"usgs":false,"family":"Dowdeswell","given":"Julian","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":869097,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Scourse, James","contributorId":279722,"corporation":false,"usgs":false,"family":"Scourse","given":"James","email":"","affiliations":[{"id":57351,"text":"Centre for Geography and Environmental Sciences, University of Exeter, Penryn, Cornwall, TR10 9EZ, UK","active":true,"usgs":false}],"preferred":false,"id":869098,"contributorType":{"id":2,"text":"Editors"},"rank":2}],"authors":[{"text":"Carlson, Paul R.","contributorId":81469,"corporation":false,"usgs":true,"family":"Carlson","given":"Paul","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":869094,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bruns, Terry R.","contributorId":29420,"corporation":false,"usgs":true,"family":"Bruns","given":"Terry","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":869095,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Fisher, Michael A. mfisher@usgs.gov","contributorId":1991,"corporation":false,"usgs":true,"family":"Fisher","given":"Michael","email":"mfisher@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":true,"id":869096,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70241921,"text":"70241921 - 1990 - Development of slope valleys in the glacimarine environment of a complex subduction zone, Northern Gulf of Alaska","interactions":[],"lastModifiedDate":"2023-03-30T19:53:15.946894","indexId":"70241921","displayToPublicDate":"1990-01-01T14:39:01","publicationYear":"1990","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"seriesTitle":{"id":11125,"text":"Special Papers of the Geological Society of London","active":true,"publicationSubtype":{"id":24}},"title":"Development of slope valleys in the glacimarine environment of a complex subduction zone, Northern Gulf of Alaska","docAbstract":"

Morphological, seismic-reflection, and sedimentological evidence indicates that glacial ice tongues cut large sea valleys into the Gulf of Alaska continental shelf during the Pleistocene. During the Holocene, glacially-derived sediments from the Copper River and other meltwater streams have been prograding seaward across the shelf, covering the glacial and glacimarine upper Yakataga diamicts that blanketed the shelf and accumulated on the upper slope seaward of the sea valleys during the Pleistocene. GLORIA imagery near Middleton Island provides a new perspective on the glacimarine depositional environment on the continental slope in a collision zone between the Pacific and North American plates. Southwest of Middleton Island, along the subduction margin, sinuous valleys funnel sediment around shelf-edge-parallel, subduction-created, anticlinal ridges that have deflected and locally trapped glacimarine sediment. The slope south and southeast of Middleton Island where oblique convergence occurs, is incised by dendritic, erosional gulley systems, contains no compressional ridges, and thus, the apparently active sediment pathways to the trench are unrestricted. However, below the sea valley mouths, apparently both glacial and glacimarine sediments blanket the upper slope, covering any dendritic gulley systems that may have formed during or since the Pleistocene low stands of sea level.

","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Glacimarine environments: Processes and sediments","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":"Geological Society of London","doi":"10.1144/GSL.SP.1990.053.01.08","usgsCitation":"Carlson, P.R., Bruns, T.R., and Fisher, M.A., 1990, Development of slope valleys in the glacimarine environment of a complex subduction zone, Northern Gulf of Alaska, chap. of Glacimarine environments: Processes and sediments: Special Papers of the Geological Society of London, v. 53, p. 139-153, https://doi.org/10.1144/GSL.SP.1990.053.01.08.","productDescription":"15 p.","startPage":"139","endPage":"153","costCenters":[],"links":[{"id":414986,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Gulf of Alaska, Middleton Island","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -146.51063585535928,\n 59.53369695538194\n ],\n [\n -146.51063585535928,\n 59.33022597265119\n ],\n [\n -146.14027962132684,\n 59.33022597265119\n ],\n [\n -146.14027962132684,\n 59.53369695538194\n ],\n [\n -146.51063585535928,\n 59.53369695538194\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"53","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Carlson, Paul R.","contributorId":81469,"corporation":false,"usgs":true,"family":"Carlson","given":"Paul","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":868229,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bruns, Terry R.","contributorId":29420,"corporation":false,"usgs":true,"family":"Bruns","given":"Terry","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":868230,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Fisher, Michael A. mfisher@usgs.gov","contributorId":1991,"corporation":false,"usgs":true,"family":"Fisher","given":"Michael","email":"mfisher@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":true,"id":868231,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70016469,"text":"70016469 - 1990 - Geology and geochemistry of epithermal precious metal vein systems in the intra-oceanic arcs of Palau and Yap, western Pacific","interactions":[],"lastModifiedDate":"2024-04-17T11:05:56.112078","indexId":"70016469","displayToPublicDate":"1990-01-01T00:00:00","publicationYear":"1990","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":"Geology and geochemistry of epithermal precious metal vein systems in the intra-oceanic arcs of Palau and Yap, western Pacific","docAbstract":"

The Palau and Yap arcs are part of an intra-oceanic island-arc-trench system which separates the Pacific and Philippine plates in the western Pacific Ocean. The 350-km-long Palau arc consists of over 200 islands while the 400-km-long Yap arc located to the north has only four major islands exposed. Four of the largest islands in Palau are composed primarily of early Eocene to mid-Miocene volcanic rocks and the four islands comprising Yap contain only Miocene volcanic rocks. Basalt and basaltic andesites of the Babelthuap Formation are the oldest volcanic rocks in Palau and are characterized by high MgO, Ni and Cr and low TiO2 and have a boninitic affinity. They form the central and southeastern parts of Babelthuap Island. Oligocene arc tholeiite flows having an age of 34–35.5 Ma comprise most of the three smaller volcanic islands in Palau and the western part of Babelthuap. The youngest volcanic rocks are dacitic intrusions having an age of 22.7–23.2 Ma. The Yap arc is unusual in that metamorphic rocks up to amphibolite grade form most of the islands. These are underlain by a melange composed of igneous and volcanic clasts as well as clasts from a dismembered copper-gold skarn deposit. Miocene volcanic rocks consisting of flows and volcaniclastic deposits overlie the melange and metamorphic complex.

","language":"English","publisher":"Elsevier","doi":"10.1016/0375-6742(90)90046-D","issn":"03756742","usgsCitation":"Rytuba, J.J., and Miller, W.R., 1990, Geology and geochemistry of epithermal precious metal vein systems in the intra-oceanic arcs of Palau and Yap, western Pacific: Journal of Geochemical Exploration, v. 35, no. 1-3, p. 413-447, https://doi.org/10.1016/0375-6742(90)90046-D.","productDescription":"35 p.","startPage":"413","endPage":"447","numberOfPages":"35","costCenters":[],"links":[{"id":223219,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"35","issue":"1-3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a22d9e4b0c8380cd573be","contributors":{"authors":[{"text":"Rytuba, J. J.","contributorId":83082,"corporation":false,"usgs":true,"family":"Rytuba","given":"J.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":373633,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Miller, W. R.","contributorId":92239,"corporation":false,"usgs":true,"family":"Miller","given":"W.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":373634,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ]}