Commodities
PrimaryGold
SecondaryLead, Copper
Commodity typeM
Deposit
Model273: Low-sulfide Au-quartz vein
Materials
Ore mineralsAzurite, Chalcocite, Galena, Gold
GangueQuartz
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). Aplite dike shows evidence of hydrothermal alteration. Oxidation of Fe and Cu minerals.
Economic & production
Development statusProspect
Identification
Deposit ID10000955
MRDS IDA011626
Alternate namesStyles, Shough
RegionNA
Data scoreB
Coordinates61.78956, -149.22268
References
Brooks, A.H., 1913, Mineral resources of Alaska, report on progress of investigations in 1912: U.S. Geological Survey Bulletin 542, 308 p.Capps, S.R., 1914, Gold lodes and placers of the Willow Creek district: U.S. Geological Survey Bulletin 592, p. 245-272.Capps, S.R., 1915, The Willow Creek District, Alaska: U.S. Geological Survey Bulletin 607, 86 p.Ray, J.C., 1933, The Willow Creek gold-lode district, Alaska: U.S. Geological Survey Bulletin 849-C, p. 165-229.Capps, S.R., 1916, Gold mining in the Willow Creek district: U.S. Geological Survey Bulletin 642-E, p. 147-200.Capps, S.R., 1916, Gold mining in the Willow Creek district: U.S. Geological Survey Bulletin 642-G, p. 147-194, 195-200.MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous mineral deposits in the western part of southern Alaska: U.S. Geological Survey Open-File Report 77-169-F, 38 p., 1 sheet, scale 1:1,000,000.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.Cobb, E.H., 1972, Metallic mineral resources map of the Anchorage quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-409, 1 sheet, scale 1:250,000.