Commodities
PrimaryGold
SecondaryCopper
Commodity typeM
Deposit
Model273: Low-sulfide Au-quartz vein
Materials
Ore mineralsChalcopyrite, Gold
GangueQuartz
Geology
Host rockMafic Intrusive Rock
Associated rockMafic Intrusive Rock,Hornblendite
AlterationClay gouge developed along shear zone.
Economic & production
Development statusPast Producer
Identification
Deposit ID10002291
MRDS IDA013195
Alternate namesMiner Island
RegionNA
Data scoreB
Coordinates58.01165, -136.34511
References
Overbeck, R.M., 1919, Geology and mineral resources of the west coast of Chichagof Island: U.S. Geological Survey Bulletin 692, p. 91-136.Rossman, Darwin, 1959, Geology and ore deposits of the northwestern part of Chichagof Island, Alaska: U.S. Geological Survey Bulletin 1058-E, p. 139-216.Loney, R.A., Brew, D.A., Muffler, L.J. B., and Pomeroy, J.S., 1975, Reconnaissance geology of Chichagof, Baranof, and Kruzof Islands, southeastern Alaska: U.S. Geological Survey Professional Paper 792, 105 p.Cobb, E.H., 1978, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Mt. Fairweather and Skagway quadrangles, Alaska: U.S. Geological Survey Open-File Report 78-316, 123 p.Cobb, E.H., 1972, Metallic mineral resources map of the Mount Fairweather quadrangle, AK: U.S. Geological Survey Miscellaneous Field Study Map MF-436, 1 sheet, scale 1:250,000.