Upper Butte Creek Occurrences, Valdez Creek District, Matanuska-Susitna Borough, Alaska, USA
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Geology: Upper Butte Creek drains an area underlain by metasedimentary and intrusive rocks, presumably of Mesozoic or Tertiary age. The placer gold was probably derived from the erosion of auriferous lodes, such as those at HE156, HE172, and HE173. Samples collected by the BLM all contained small anounts of gold (Balen, 1990 OFR 90-34).
Workings: Surface workings only.
Commodities (Major) - Au
Development Status: Undetermined.
Deposit Model: Placer Au (Cox and Singer, 1986; model 39a)
1 entry listed. 1 valid mineral.
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Balen, M.D., 1990, Geochemical sampling results from the Bureau of Mines investigations in the Valdez Creek mining district, Alaska: U.S. Bureau of Mines Open-File Report 34-90, 218 p., 2 plates, scale 1:250,000.