Alaska
Occurrence

Unnamed (near Styx River)

Alaska, United States
TinCopperSilver
⌖ Show on mapUSGS source ↗
Commodities
PrimaryTin, Copper, Silver
Commodity typeM
Deposit
Model85: Polymetallic veins
Materials
Ore mineralsAzurite, Bornite, Chalcopyrite, Malachite
GangueAlbite, Quartz, Sericite, Tourmaline
Geology
Host rockHornblendite
Associated rockHornblendite · Mount Estelle Pluton
AlterationGranodiorite in the shear zone is altered to quartz, sericite, albite, and iron oxide minerals.
Economic & production
Development statusOccurrence
Identification
Deposit ID10002172
MRDS IDA013069
RegionNA
Data scoreC
Coordinates61.68337, -153.05693
References
Gamble, B.M., Bailey, E. A., and Reed, B. L., 1989, Gold occurrences near Snowcap Mountain, Lime Hills B-2 quadrangle, Alaska: U.S. Geological Survey Open-File Report 89-0646, 8 p.Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Iliamna, Lake Clark, Lime Hills, and McGrath quadrangles, Alaska: U.S. Geological Survey Open-File Report 76-485, 101 p.Cobb, E.H., 1972, Metallic mineral resources map of the Lime Hills quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-412, 1 sheet, scale 1:250,000.Cobb, E.H., and Reed, B.L., 1981, Summaries of data on and lists of references to metallic and selected nonmetallic mineral occurrences in the Iliamna, Lake Clark, Lime Hills, and McGrath quadrangles, Alaska; Supplement to Open-File Report 76-485; Part A, Summaries to January 1, 1981: U.S. Geological Survey Open-File Report 81-1343-A, 25 p.Reed, B.L., and Elliott, R.L., 1970, Reconnaissance geologic map, analyses of bedrock and stream sediment samples, and an aeromagnetic map of parts of the southern Alaska Range: U.S. Geological Survey Open-File Report 70-217, 145 p., 1 sheet, scale 1:250,000. (Also published as U.S. Geological Survey Open-File Report 413).