Mine detail: Mt. Estelle

Previously called ''

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Location

Lat / long: 61.84949, -152.89278

Resource(M)

Primary: Copper, Gold
Ore: Arsenopyrite, Chalcopyrite, Galena, Malachite, Molybdenite, Pentlandite, Pyrite, Pyrrhotite, Sphalerite, Stibnite, Gold
Gangue: Chlorite, Limonite, Quartz, Sericite

Production

Operation type: Unknown
Development status: Prospect

Geology

Alteration processes:Alteration is weak and restricted to vein and joint selvages. Carbonate, chlorite, sericite, and quartz are commonly associated with the sulfide and gold mineralization (Millholland,1995; Crowe and others, 1991; Crowe and Millholland, 1990; Cominco American Incorporated, unpublished reports, 1985 -1989).

References

MRDSA010587
DEP10000421
Reference{Deposit:: Cobb, E.H., 1972, Metallic mineral resources map of the Tyonek quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-385, 1:250,000 scale.}{Deposit:: Reed, B.L., and Lanphere, M.A., 1972, Generalized geologic map of the Alaska-Aleutian range batholith showing potassium-argon ages of the plutonic rocks: U.S. Geological Survey Miscellaneous Field Studies Map MF-372, 2 sheets, scale 1:1,000,000.}{Deposit:: Reed, B.L., and Nelson, S.W., 1980, Geologic map of the Talkeetna quadrangle: U.S. Geological Survey Miscellaneous Investigations Map I-1174, scale 1:250,000.}{Deposit:: Green, C.B., Bundtzen, T.K., Peterson, R.J., Seward, A.F., Deagan, J.R., and Burton, J.E., 1989, Alask* Mineral Industry, 1988, Alaska Division of Geological and Geophysical Surveys Special Report 43, 79 p.}{Deposit:: Crowe, D.E., and Millholland, M.A., 1990, High-grade gold mineralization associated with high salinity hydrothermal fluids, Mt. Estelle pluton, central Alaska Range [abs.]: Geological Society of America, Abstracts with Programs, v. 22, p. A41.}{Deposit:: Crowe, D.E., Millholland, M.A., and Brown, Philip E., 1991, Precious and base metal mineralization associated with high-salinity fluids in the Mount Estelle pluton, south-central Alaska: Economic Geology, vol. 86, p. 1103-1109.}{Deposit:: Millholland, M.A., 1995, Geology and discovery at Mount Estelle: Newsletter of the Alaska Geological Society, v. 24, no. 8, p. 1.}{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.}
ReporterJames Riehle, Madelyn A. Millholland