Commodities
PrimaryGold
SecondaryCopper
Commodity typeM
Deposit
Model273: Low-sulfide Au-quartz vein
Materials
Ore mineralsChalcopyrite, Gold, Pyrite, Tetrahedrite
GangueOrthoclase, Quartz, Tourmaline
Geology
AlterationWall-rock alteration within a few inches of the veins is intense, but seldom extends more than 10 to 12 inches beyond the quartz filling. Sericitization and carbonate alteration predominate, but there is some pyritization and in the outer parts of the alteration zone chloritization is present (Ray, 1954).
Economic & production
Development statusProspect
Identification
Deposit ID10003480
MRDS IDA106238
RegionNA
Data scoreC
Coordinates61.89956, -149.28269
References
Chapin, Theodore, 1921, Lode developments in the Willow Creek district: U.S. Geological Survey Bulletin 714-E, p. 201-206.Cobb, E.H., 1979, Summary of references to mineral occurrences (other than mineral fuels and construction materials in the Anchorage quadrangle, Alaska: U.S. Geological Survey Open-File Report 79-1095, 184 p.