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Mine detail: Shepard
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North America
United States
Alaska
Medfra
Previously called ''
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Location
Lat / long:
63.5915, -154.22797
Resource(M)
Primary:
Gold, Copper, Zinc
Ore:
Arsenopyrite, Chalcopyrite
Gangue:
Quartz
Production
Operation type:
Unknown
Development status:
Occurrence
Geology
Alteration processes:
Silicic and phyllic in intrusion.
References
DEP
10308646
Reference
DiMarchi, J.J., Weglarz, T.B., Freeman, L.K., Nicholson, L.C., and Barker, J.C., 1992, Annual Report for 1992--Doyon Option Lands, Block 10: ASA Inc. Report, 121 pages (Report held by Doyon Ltd., Fairbanks, Alaska.)
Reporter
Bundtzen, T.K.