111 resultados para Placer deposits


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"June 1955."

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Under contract between the University of Utah and the U.S. Atomic Energy Commission, the writer has carried on a field and laboratory investigation of the uranium deposits in the Salt Wash sandstone of the Colorado Plateau.

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"April 1953, [site issuance date]."

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"January 30, 1953."

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"December 1950."

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"June 18, 1951 [Site Issuance Date]."

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"August 1, 1951 [Site Issuance Date]."

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"September 11, 1951."

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"July 12, 1951, Site issuance date."

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Part of the Salt Wash sandstone outcrop on the southwest rim of the Lukachukai Mountains is strongly mineralized in cross-bedded, channel sandstone. The deposits are opposite the strongly mineralized belt on the northeast rim. A north to northeast ore trend is possibly related to the original Salt Wash stream system.