National Uranium Resource Evaluation: Ashton Quadrangle, Idaho, Montana, and Wyoming

Technical Report · Thu Jul 01 04:00:00 EDT 1982

OSTI ID:5368322

Suekawa, H S; Merrick, D; Clayton, J; Rumba, S

The Ashton Quadrangle, Idaho, Montana, and Wyoming, was evaluated to identify and delineate areas containing environments favorable for uranium deposits, using criteria developed for the National Uranium Resource Evaluation program. General surface reconnaissance, radiometric traverses, and geochemical sampling were carried out in all geologic environments within the quadrangle. Aerial radiometric data were evaluated, and anomalies were examined in the field. Fourteen uranium occurrences were noted in the study area. Only one environment, the phosphorites of the Permian Phosphoria Formation, is considered favorable for uranium deposition. The unfavorable environments include: limestones, sandstones, coal and carbonaceous shales, volcanics, Precambrian metamorphics, and Tertiary basins. Unevaluated areas include the John D. Rockefeller Jr. Memorial Parkway and Yellowstone and Grand Teton National Parks, where park service regulations prohibit detailed investigations.

• Research Organization: Bendix Field Engineering Corp., Grand Junction, CO (USA). Grand Junction Operations; Meiiji Resource Consultants, Layton, UT (USA)
• DOE Contract Number: AC13-76GJ01664
• OSTI ID: 5368322
• Report Number(s): PGJ/F-074-82; ON: DE82018205
• Country of Publication: United States
• Language: English

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