Commodities
PrimaryGold, Silver
SecondaryArsenic, Mercury
Commodity typeM
Deposit
Model105: Epithermal vein, generic
Materials
Ore mineralsGold, Pyrite
GangueChlorite, Epidote, Quartz
Geology
AlterationWall 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.
Economic & production
Development statusProspect
Identification
Deposit ID10003262
MRDS IDA106003
RegionNA
Data scoreB
Coordinates53.923, -166.66573
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.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.)Simpson, D.F., 1986, Aleutian Islands project, 1985 final report: Kennecott Alaska Exploration Company, 54 p. (Report held by the Aleut Native Corporation, Anchorage, Alaska.)