Talkeetna Quadrangle, Alaska
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
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Related Subjects
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
58 GEOSCIENCES
580400 -- Geochemistry-- (-1989)
AERIAL PROSPECTING
ALASKA
ALKALINE EARTH METALS
BERYLLIUM
CENOZOIC ERA
CHEMISTRY
ELEMENTS
EXPLORATION
FEDERAL REGION X
GEOCHEMICAL SURVEYS
GEOCHEMISTRY
GEOLOGIC AGES
GEOLOGIC DEPOSITS
GEOLOGY
GEOPHYSICAL SURVEYS
GRANITES
HYDROGEN COMPOUNDS
IGNEOUS ROCKS
LEAD
MAPS
METALS
MINERAL RESOURCES
NORTH AMERICA
OXYGEN COMPOUNDS
PLACERS
PLUTONIC ROCKS
PROSPECTING
RADIOMETRIC SURVEYS
RESOURCES
ROCKS
SAMPLING
SEDIMENTS
SILVER
SURVEYS
TERTIARY PERIOD
TIN
TRANSITION ELEMENTS
TUNGSTEN
URANIUM DEPOSITS
USA
WATER