National Uranium Resource Evaluation, Grand Canyon Quadrangle, Arizona

Technical Report · Tue Jun 01 04:00:00 EDT 1982

OSTI ID:5367386

Baillieul, T A; Zollinger, R C

The Grand Canyon Quadrangle (2/sup 0/), northwestern Arizona, was evaluated to identify environments and delineate areas favorable for the occurrence of uranium deposits. This was done using criteria developed for the National Uranium Resource Evaluation. General surface reconnaissance and geochemical sampling were carried out in all geologic environments within the quadrangle. Aerial radiometric and hydrochemical and stream-sediment reconnaissance surveys were performed, although results were not available in time for field checking. The results of this investigation indicate environments favorable for: channel-controlled, peneconcordant sandstone deposits in the Petrified Forest Member of the Chinle Formation in the north-central part of the quadrangle, vein-type deposits in collapse breccias in all areas underlain by the Redwall Limestone, and unconformity-related deposits in the metasediments of the Vishnu Group within the Grand Canyon. All other rock units examined are considered unfavorable for hosting uranium deposits. Younger Precambrian rocks of the Grand Canyon Supergroup, exposed only within the Grand Canyon National Park, remain unevaluated.

• Research Organization: Bendix Field Engineering Corp., Grand Junction, CO (USA). Grand Junction Operations
• DOE Contract Number: AC13-76GJ01664
• OSTI ID: 5367386
• Report Number(s): PGJ/F-020-82; ON: DE82018993
• Country of Publication: United States
• Language: English

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