Commodities
PrimaryCopper
Commodity typeM
Deposit
Model85: Polymetallic veins
Materials
Ore mineralsAzurite, Chalcopyrite, Hematite, Magnetite, Malachite, Pyrite
GangueCalcite, Quartz
Geology
AlterationLocal oxidation of chalcopyrite to azurite and malachite; oxidation of iron mineral(s) to hematite; sericitization of sheared trondhjemite country rock; sulfide impregnation of wallrock adjacent to veins.
Economic & production
Development statusOccurrence
Identification
Deposit ID10308880
MRDS IDA012379
RegionNA
Data scoreC
Coordinates55.17674, -131.55276
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.