Mine detail: Purches Creek

Previously called 'Purchase Creek'

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Location

Lat / long:

61.80956, -149.35269

Resource(M)

Primary:	Gold
Ore:	Chalcopyrite, Gold, Pyrite, Silver
Gangue:	Quartz

Production

Operation type:	Unknown
Development status:	Occurrence

Geology

Alteration processes:

Wall-rock alteration within a few inches of the veins is intense, but seldom extends more than 10 to 12 inches beyond the quartz filling. Sericitization and carbonate alteration predominate, but there is some pyritization and in the outer parts of the alteration zone chloritization is present (Ray, 1954).

References

MRDS	A011605
DEP	10000936
Reference	{Deposit:: Capps, S.R., and Tuck, Ralph, 1935, The Willow Creek-Kashwitna District, Alaska: U.S. Geological Survey Bulletin 864-B, p. 95-113.}{Deposit:: Cobb, E.H., 1972, Metallic mineral resources map of the Anchorage Quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-409, 1 sheet, scale 1:250,000.}{Deposit:: Cobb, E.H., 1979, Summary of references to mineral occurrences (other than mineral fuels and construction materials in Anchorage quadrangle, Alaska: U.S. Geological Survey Open-File Report 79-1095, 184 p.}
Reporter	S.W. Huss, D.P. Bickerstaff