Commodities
PrimaryLead, Copper, Gold, Silver, Zinc
Commodity typeM
Deposit
Model85: Polymetallic veins
Materials
Ore mineralsBarite, Chalcocite, Chalcopyrite, Covellite, Galena, Magnetite, Pyrargyrite, Pyrite, Sphalerite, Stibnite, Tetrahedrite
GangueCalcite, Hematite, Quartz
Geology
Host rockLimestone
AlterationSecondary copper and silver minerals suggest local supergene enrichment. Dolomitization of limestone; sericitization of rhyolitic volcanic rocks.
Economic & production
Development statusOccurrence
Identification
Deposit ID10001623
MRDS IDA012387
RegionNA
Data scoreC
Coordinates55.10585, -131.40481
References
Berg, H.C., 1972, Geologic map of Annette Island, Alaska: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-684, 8 p., 1 sheet, scale 1:63,360,Elliott, R.L., Berg, H.C., and Karl, Susan, 1978, map and table describing metalliferous and selected nonmetalliferous mineral deposits, Ketchikan and Prince Rupert quadrangles, Alaska: U.S. Geological Survey Open-file Report, 78-73-B,17 p., scale 1:250,000.Karl, S.M., 1992, Map and table of mineral deposits on Annette Island, Alaska: U.S. Geological Survey Open-File Report 92-690, 57 p., 1 map, scale 1:63,360.