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This report presents geochemical analyses for 220 mostly altered andmineralized rock samples from the Red Dog Zn-Pb-Ag district in thewestern Brooks Range of northern Alaska. These data form the basisfor a study by Slack et al. (2004a) on hydrothermal silicificationand related alteration in wall rocks of the Red Dog deposits and theAnarraaq deposit 10 km to the northwest. The sulfide deposits occurwithin the Ikalukrok unit (informal name) of the Mississippian KunaFormation (Moore and others, 1986). Principal rock types that wereanalyzed include black and gray shale, unmineralized bedded barite,mineralized (sulfide-rich) bedded barite, sulfide-rich silica rock(replaced barite), massive and semimassive sulfide, vein...
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Background elemental data on soil composition at Arches National Park are reported. The enrichment factor analysis of the soil data from Arches National Park provides some interpretation of the current elemental status of soils at the park. These data provide a basis for determining changes in elemental enrichment status in the future.
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This data release contains analytical data and images for a suite of drill core samples from the Mineral Hill alkaline complex (MHAC), northeastern Wyoming. Geochemistry data include major and trace element analytical results for 103 alkaline igneous rock samples. Images include hand sample photographs of halved core and full thin section images captured in transmitted, plane-polarized and cross-polarized light. Samples are from two core holes drilled by Humble Oil Company in 1970, and subsequently acquired and stored by Felix Mutschler at Eastern Washington University. The two skeletonized (incomplete) drill cores were acquired by the U.S. Geological Survey Geology, Minerals, Energy, and Geophysics Spokane office...
Categories: Data; Tags: Alkaline silicate rocks, Au, Crook County, Economic Geology, Fire assay, All tags...
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This report presents geochemical analyses for 210 unaltered andunmineralized rock samples of Paleozoic age in the western BrooksRange of northern Alaska. These data form the basis for a studyby Slack et al. (2004a) on the provenance and depositionalhistory of the Paleozoic strata, and on their metallogenicsignificance relative to the formation of large stratabound Zn-Pb-Ag deposits in the Red Dog mining district. Principal rocktypes that were analyzed include shale, siltstone, sandstone,chert, bedded siliceous rock, and calcareous radiolarite;selected samples of limestone, phosphate, and argillite, and onesiderite concretion, were also analyzed. Note that the phosphatesamples are from the central Brooks Range, east...


map background search result map search result map Elemental composition of background soils from Arches National Park, Utah Uranium in surface waters and sediments affected by historical mining in the Denver West 1:100,000 quadrangle, Colorado Whole Rock Geochemical Data For Paleozoic Sedimentary Rocksof the western Brooks Brooks Range, Alaska Whole rock geochemical data for altered and mineralized rocks,Red Dog Zn-Pb-Ag district, western Brooks Range, Alaska Lithogeochemistry and images of selected drill core samples from the Mineral Hill alkaline complex, Wyoming Lithogeochemistry and images of selected drill core samples from the Mineral Hill alkaline complex, Wyoming Elemental composition of background soils from Arches National Park, Utah Uranium in surface waters and sediments affected by historical mining in the Denver West 1:100,000 quadrangle, Colorado Whole Rock Geochemical Data For Paleozoic Sedimentary Rocksof the western Brooks Brooks Range, Alaska