Mine detail: Nixon Fork

Previously called 'Garnet TrenchMespelt Main ShaftTwin ShaftsKeenRecreationMespelt Inclined ShaftHigh GradeCrystalParsons and StrandSouthern Cross'

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Location

Lat / long: 63.23837, -154.76685

Resource(M)

Primary: Silver, Copper, Gold
Ore: Chalcopyrite, Azurite, Bismuth, Bornite, Chalcocite, Chrysocolla, Electrum, Malachite, Scheelite, Gold, Pyrite
Gangue: Calcite, Chlorite, Epidote, Garnet, Limonite, Quartz, Sericite, Siderite, Zeolite

Production

Operation type: Unknown
Development status: Producer

Geology

Host type:Limestone
Associated type:Quartz Monzonite,Quartz Latite
Alteration processes:Oxidation of sulfides probably resulted in some supergene enrichment of gold values

References

MRDSA012420
DEP10100969
Reference{Deposit:: Mertie, J.B., Jr., 1936, Mineral deposits of the Ruby-Kuskokwim region, Alaska: U.S. Geological Survey Bulletin 864-C, 115-245.}{Deposit:: Williams, J.A., 1961, Report of the Division of Mines and Minerals for the year 1961: Alaska Division of Mines and Minerals Annual Report 1961, 108 p.}{Deposit:: Patton, W.W., Jr., Moll, E.J., Dutro, J.T., Jr., Silberman, M.L., and Chapman, R.M., 1980, Preliminary geologic map of Medfra quadrangle, Alaska: U.S. Geological Survey Open-File Report 80-811-A, 1 sheet, scale l:250,000.}{Deposit:: Freeman, Larry, 1996, A progress report on the Nixon Fork underground gold mine, McGrath-McKinley district, Alaska [abs]: Abstract preprint of the 15th Biennial Conference on Alaskan Mining, Alaska Miners Association, Fairbanks, Alaska, p. 36.}{Deposit:: Bundtzen, T.K., and Miller, M.L., 1997, Precious metals associated with Late Cretaceous-early Tertiary igneous rocks of southwestern Alaska, in Goldfarb, R.J., and Miller, L.D., eds., Economic Geology Monograph #9, Mineral Deposits of Alaska, p. 242-286.}{Deposit:: Swainbank, R.C., Bundtzen, T. K., Clough A.H., and Henning, M.W., 1997, Alask* mineral industry 1996: Alaska Division of Geological and Geophysical Surveys Special Report 51, 68 p.}
ReporterBundtzen, T.K.