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U.S. Department of Energy
Office of Scientific and Technical Information

Talkeetna Quadrangle, Alaska

Technical Report ·
OSTI ID:5297217

The Talkeetna Quadrangle in central Alaska was evaluated to identify geologic environments favorable for the occurrence of uranium deposits. The study used data from aerial radiometric surveys, geochemical sampling, published geologic maps, and ground geologic examinations. The Tertiary Tonzona granite, in the northwestern part of the quadrangle, is considered favorable for the occurrence of hydrothermal and contact-metasomatic uranium deposits where it intrudes Paleozoic or Precambrian metamorphic rocks. Skarn deposits and hydrothermal veins which contain tin, tungsten, beryllium, and other metals are associated with the pluton. A silver-tungsten-lead bearing vein contains up to 0.16% U/sub 3/O/sub 8/. Cenozoic basins in the quadrangle are similar to those hosting sandstone uranium deposits elsewhere; they may also contain fluvial placers from which uranium is recoverable as a byproduct. These environments remain unevaluated because of extensive surficial cover. Some geochemical anomalies in the quadrangle which appear to be of interest were not evaluated because of late receipt of the data.

Research Organization:
Bendix Field Engineering Corp., Grand Junction, CO (USA); Hawley (C.C.) and Associates, Anchorage, AK (USA)
DOE Contract Number:
AC13-76GJ01664
OSTI ID:
5297217
Report Number(s):
PGJ/F-058(82); ON: DE82012204
Country of Publication:
United States
Language:
English