Mine detail: Rober* PGM (near Middle Fork of Kuskokwim River)

Previously called ''

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Location

Lat / long: 62.19546, -154.44884

Resource(M)

Primary: Copper, Nickel
Ore: Bravoite, Chalcopyrite, Galena, Pentlandite, Pyrite, Pyrrhotite
Gangue: Hematite, Magnetite

Production

Operation type: Unknown
Development status: Prospect

Geology

Alteration processes:Serpentinization of ultramafic phases of sill.

References

DEP10307843
Reference{Deposit:: Roberts, W.S., and *onnor, W.K., 1985, Petrographic and geological summary, Rober* PGM occurrence, McGrath A-3 quadrangle, Alaska: U.S. Bureau of Mines unpublished prospect examination report, 9 pages.}{Deposit:: Gilbert, W.G., Solie, D.N., and Kline, J.T., 1988, Geologic map of the McGrath A-3 quadrangle, Alaska: Alaska Division of Geological and Geophysical Surveys Professional Report 92, 2 sheets, 1:63,360 scale.}{Deposit:: Foley, J.Y., Light, T.D., Nelson, S.W., and Harris, R.A., 1997, Mineral occurrences associated with mafic-ultramafic and related alkaline complexes in Alaska: Economic Geology, Monograph 9, p. 396-449.}{Deposit:: 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.}
ReporterT.K. Bundtzen