Mine detail: Fog

Previously called 'Steeple Mountain'

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Location

Lat / long:

53.26907, -168.26237

Resource(M)

Primary:	Silver, Gold
Ore:	Chalcopyrite, Gold, Molybdenite, Pyrite
Gangue:	Quartz

Production

Operation type:	Unknown
Development status:	Prospect

Geology

Alteration processes:

The volcanic rocks exhibit regional propylitic alteration and localized silicification and potassium flooding or secondary growth on primary feldspars. Quartz veins exhibit pyritization and silicification in the surrounding wall rock. Some pyrite-filled fractures show narrow kaolinite-epidote-sericite alteration envelopes. No argillic alteration has been recognized.

References

DEP	10308470
Reference	{Deposit:: Christie, J.S., 1974, Aleut-Quintana-Duval 1974 joint venture, final report: Unpublished Quintana Minerals Corporation report, 24 p., 3 appendices, 2 maps. (Report held by the Aleut Corporation, Anchorage, Alaska.)}{Deposit:: Randolph, D.B., and Ellis, W.T., 1989, Unalaska project, 1989 final report: Battle Mountain Exploration Company, Alaska District, 41 p., 5 appendices, 11 plates, various scales. (Report held by the Aleut Corporation, Anchorage, Alaska.)}{Deposit:: Bundtzen, T.K., Swainbank, R.C., Deagen, J.R. and Moore, J.L., 1990, Alask * mineral industry 1989: Alaska Division of Geological and Geophysical Surveys Special Report 44, 100 p.}
Reporter	S.H. Pilcher