Commodities
PrimaryGold, Copper, Silver
SecondaryLead, Arsenic, Antimony, Zinc
Commodity typeM
Deposit
Model59: Skarn Cu78: Porphyry Cu-Au85: Polymetallic veins
Materials
Ore mineralsArsenopyrite, Chalcopyrite, Galena, Gold, Pyrite, Pyrrhotite, Sphalerite, Stibnite
GangueAnkerite, Quartz
Geology
AlterationAlteration consists of a combination of skarn (epidote, garnet and actinolite), silica flooding, ankerite, pyrite and sericite. Limonite and uncommon chalcocite are oxidation and supergene mineral assemblages.
Economic & production
Development statusProspect
Identification
Deposit ID10000694
MRDS IDA011323
RegionNA
Data scoreB
Coordinates63.21569, -149.64589
References
Berg, H.C., and Cobb, E.H., 1967, Metalliferous Lode Deposits of Alaska. U.S. Geological Survey Bulletin 1246, 254 p.Mulligan, J.J., Warfield, R.S., and Wells, R.R., 1967, Sampling a gold-copper deposit, Golden Zone Mine, south-central Alaska: U.S. Bureau of Mines Open-File Report 9-67, 59 p.Hawley, C.C., and Clark, A.L., 1974, Geology and mineral deposits of the upper Chulitna district, Alaska: U.S. Geological Survey Professional Paper 758-B, p. 1-47, 2 sheets, scale 1:12,000 and 1:48,000.Cobb, E.H., 1978, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Healy quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-1062, 113 p.