Mine detail: Makushin Valley

Previously called ''

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Location

Lat / long:

53.923, -166.66573

Resource(M)

Primary:	Silver, Gold
Ore:	Gold, Pyrite
Gangue:	Chlorite, Epidote, Quartz

Production

Operation type:	Unknown
Development status:	Prospect

Geology

Alteration processes:

Wall rocks are propylitically altered volcaniclastic rocks that show no wall-rock alteration as a result of veining. Propylitic alteration is thought to predate mineralization and is probably not associated with quartz veining and gold mineralization.

References

MRDS	A106003
DEP	10003262
Reference	{Deposit:: Drewes, Harold, Fraser, G.D., Snyder, G.L., and Barnett, H.F., Jr., 1961, Geology of Unalaska Island and adjacent insular shelf, Aleutian Islands, Alaska: U.S. Geological Survey Bulletin 1028-S, p. 583-676.}{Deposit:: Randolph, D.B., 1991, Unalaska project, 1990 final report: Battle Mountain Exploration Company, Alaska District, 62 p., 5 appendices, 15 plates, various scales. (Report held by the Aleut Corporation, Anchorage, Alaska.)}
Reporter	F.H. Wilson