Mine detail: Difficult Creek

Previously called ''

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Location

Lat / long: 60.15045, -152.87762

Resource(M)

Primary: Gold, Copper, Zinc
Ore: Chalcopyrite, Gold, Pyrite, Sphalerite
Gangue: Anhydrite, Barite, Calcite, Quartz

Production

Operation type: Unknown
Development status: Occurrence

Geology

Alteration processes:The Difficult Creek occurrence has alteration characteristics of a Kuroko type massive sulfide deposit that includes sulfate alteration, and silification.

References

DEP10307712
Reference{Deposit:: Detterman, R.L., Reed, B.L., and Lamphere, A.A., 1965, Jurassic plutonism in the Cook Inlet region, Alaska: U.S. Geological Survey Professional Paper 525-D, p. D16-D21.}{Deposit:: Detterman, R.L., and Hartsock, J.L., 1966, Geology of the Iniskin-Tuxedni region, Alaska: U.S. Geological Survey Professional Paper 512, 78 p.}{Deposit:: Steefel, C.I., 1987, The Johnson River Prospect, Alaska: Gold rich sea-floor mineralization from the Jurassic: Economic Geology, V. 82, p. 894-914.}{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.}
ReporterJeff A. Huber