Alaska
Prospect

Rat Fork-Headwall

Alaska, United States
ZincLeadSilverCopperArsenicCadmium
⌖ Show on mapUSGS source ↗
Commodities
PrimaryZinc, Lead, Silver, Copper
SecondaryArsenic, Cadmium
Commodity typeM
Deposit
Model60: Skarn Zn-Pb
Materials
Ore mineralsChalcopyrite, Galena, Pyrite, Pyrrhotite, Marmatite, Sphalerite
GangueClinopyroxene, Epidote, Garnet
Geology
AlterationExtensive oxidation of pyrite-rich areas to ferricrete gossan.
Economic & production
Development statusProspect
Identification
Deposit ID10002591
MRDS IDA015028
RegionNA
Data scoreB
Coordinates62.31837, -153.89173
References
Reed, B.L. and Elliott, R.L., 1968, Geochemical anomalies and metalliferous deposits between Windy Fork and Post River, southern Alaska: U.S. Geological Survey Circular 596, 22 pages.Bundtzen, T.K., Kline, J.T., and Clough, J.G., 1982, Preliminary geologic map of the McGrath B-2 quadrangle, Alaska: Alaska Division of Geological and Geophysical Surveys Open-File report 149, 22 pages, one sheet, scale 1:63,360.Smith, T.E., and Albanese, M.D., 1985, Preliminary prospect examinations in the McGrath B-2, A-3, and A-4 quadrangles, Alaska: Alaska Division of Geological and Geophysical Surveys Public Data File 85-54, 19 pages.Solie, D.N., Bundtzen, T.K., and Gilbert, W.G., 1991, K-Ar ages of igneous rocks in the McGrath quadrangle, Alaska: Alaska Division of Geological and Geophysical Surveys Public Data File Report 160, 17 pages, one sheet, 1:250,000 scale.Bundtzen, T.K., Harris, E.E., and Gilbert, W.G., 1997, Geologic Map of the eastern McGrath quadrangle, Alaska: Alaska Division of Geological and Geophysical Surveys Report of Investigations 97-14, 34 pages, one sheet, scale 1:125,000.Cobb, E.H., 1972, Metallic mineral resources map of the McGrath quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-379, 1 sheet, 1:250,000 scale.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.