National uranium resource evaluation, Lime Hills Quadrangle, Alaska

Technical Report · Wed Mar 31 23:00:00 EST 1982

OSTI ID:5261249

Hinderman, T K

The Lime Hills Quadrangle in south-central Alaska was evaluated to identify geologic environments favorable for the occurrence of uranium. The study used data from aerial radiometric surveys, geochemical sampling, published geologic maps, and ground geologic examinations. A small drainage at the head of the Post River in the northeastern part of the quadrangle was found to be favorable for the occurrence of fluvial placer uranium deposits. Samples of black sand from the area contained up to 0.7% U/sub 3/O/sub 8/. Quaternary gravels elsewhere in the quadrangle may also have placer potential; at the present time they are unevaluated. Anomalous concentrations of uranium, up to 540 ppM U/sub 3/O/sub 8/, occur in stream sediments collected from drainages of the south end of the Tired Pup batholith. The region is considered favorable for the occurrence of supergene uranium mineralization, probably of the authigenic type.

• Research Organization: Hawley (C.C.) and Associates, Anchorage, AK (USA)
• DOE Contract Number: AC13-76GJ01664
• OSTI ID: 5261249
• Report Number(s): PGJ/F-057-82; ON: DE82012850
• Country of Publication: United States
• Language: English

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