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Some Natural Variations in the Relative Abundance of Copper Isotopes

Description: Abstract: "The relative isotopic abundance of copper has been measured in a number of minerals. Suites of samples from Michigan and the Colorado Plateau have been examined to determine if local variations due to isotopic exchange or diffusion could be found. The relative isotopic abundance of copper in specimens from a number of other places was also determined. The variations noted were small but in most cases were felt to be significant because they were larger than the experimental error (0.… more
Date: August 1957
Creator: Walker, Edward C.; Cuttitta, Frank & Senftle, Frank E.
Item Type: Refine your search to only Report
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Supergene Alteration of Uranium-Bearing Veins in the United States

Description: The following report is a chapter in a comprehensive report titled "Geology of uranium-bearing vein deposits in the United States", dealing with supergene alteration of uranium-bearing veins. This contains detailed information on tectonic and structural setting, kinds of host rocks, wall-rock alteration, mineralogy, physical characteristics, processes of deposition, and concepts if origin of uraniferous veins.
Date: August 1957
Creator: Walker, George W.
Item Type: Refine your search to only Report
open access

Uranium Deposits of the Carlile Quadrangle, Crook County, Wyoming

Description: From abstract: The uranium deposits in the Carlile quadrangle, southwestern Crook County, Wyo., are in relatively flat-lying sandstone beds in the lower part of the Inyan Kara group of Early Cretaceous age. The Carlile mine has the largest deposit in the quadrangle; the ore minerals are carnotite and tyuyamunite associated with carbonaceous material in a sandstone lens.
Date: August 1957
Creator: Bergendahl, M. H.
Item Type: Refine your search to only Report
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