Alaska
Prospect

Unnamed (southwest Gravina Island)

Alaska, United States
SilverGoldBarium-Barite
⌖ Show on mapUSGS source ↗
Commodities
PrimarySilver, Gold
SecondaryBarium-Barite
Commodity typeB
Deposit
Model85: Polymetallic veins
Materials
Ore mineralsBarite, Chalcopyrite, Galena, Sphalerite
GangueQuartz
Geology
AlterationLocal iron-staining.
Economic & production
Development statusProspect
Identification
Deposit ID10001571
MRDS IDA012321
RegionNA
Data scoreC
Coordinates55.1978, -131.82566
References
Berg, H.C., 1973, Geology of Gravina Island Alaska: U.S. Geological Survey Bulletin 1373, 41 p.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.Koch, R.D., and Elliott, R.L., 1978, Analyses of rock samples from Ketchikan quadrangle, southeastern Alaska: U.S. Geological Survey Open-File Report 78-156-A, 162 p., 1 sheet, scale l:250,000.Berg, H.C., Elliott, R.L., and Koch, R.D., 1988, Geologic map of the Ketchikan and Prince Rupert quadrangles, southeastern Alaska: U.S. Geological Survey Mineral Investigations Series Map MF-1807,27 p., scale 1:250,000.