Commodities
PrimaryGold
SecondarySilver, Copper, Lead
Commodity typeM
Deposit
Model273: Low-sulfide Au-quartz vein
Materials
Ore mineralsChalcopyrite, Galena, Gold, Pyrite, Sphalerite
GangueCalcite, Quartz
Geology
Host rockSlate · Valdez Group
Associated rockMafic Intrusive Rock
AlterationCalcite rims are found on slate fragments within the vein.
Economic & production
Development statusProspect
Identification
Deposit ID10000406
MRDS IDA010569
Alternate namesRolphs, Alan Blairs
RegionNA
Data scoreB
Coordinates59.45948, -150.63253
References
Pilgrim, E.R., 1933, Progress of lode mining in interior Alaska, 1932: Alaska Territorial Department of Mines Miscellaneous Report 194, 11 p.Capps, S.R., 1938, Lode mining in the Nuka Bay district, in Smith, P.S., Mineral industry of Alaska in 1936: U.S. Geological Survey Bulletin 897-A, p. 25-32.Cobb, E.H., 1972, Metallic minerals resources map of the Seldovia quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-397, 1 sheet, scale 1:250,000.MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous and selected non-metalliferous mineral deposits in the eastern part of southern Alaska: U.S. Geological Survey Open-File Report 77-169-A, 99 p., 1 sheet, scale 1:1,000,000.Cobb, E.H., 1979, Summary of references to mineral occurrences (other than minerals fuels and construction materials) in the Seldovia quadrangle, Alaska: U.S. Geological Survey Open-file Report 80-87, 47 p.