Commodities
PrimaryGold
SecondarySilver
Commodity typeM
Deposit
Model105: Epithermal vein, generic
Materials
Ore mineralsChalcopyrite, Pyrite
GangueChlorite, Quartz, Sericite
Geology
AlterationRegional propylitic alteration overprinted by silicic and sericitic alteration is common, as is the introduction of pyrite throughout the altered volcanic breccia. Area is highly iron-stained, apparently derived from weathering of pyrite.
Economic & production
Development statusProspect
Identification
Deposit ID10003260
MRDS IDA106000
RegionNA
Data scoreB
Coordinates53.88383, -166.4785
References
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Survey Bulletin 1028-S, p. 583-676.Christie, J.S., 1974, Aleut-Quintana-Duval 1974 joint venture, final report: Unpublished Quintana Minerals Corporation report, 24 p., 3 appendices, 2 maps. (Report held by the Aleut Corporation, Anchorage, Alaska.)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 (Report held by the Aleut Corporation, Anchorage, Alaska.)F.H. Wilson and E.A. Bailey, unpublished data, 1992.