Mine detail: Double Anchor

Previously called 'Alaska State Mines Extension'

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Location

Lat / long: 56.06366, -130.25983

Resource(M)

Primary: Zinc, Lead, Copper, Gold, Silver
Ore: Chalcopyrite, Galena, Pyrite, Sphalerite
Gangue: Quartz

Production

Operation type: Unknown
Development status: Prospect

Geology

Host type:Siltstone
Alteration processes:Local intense iron staining. The subhorizontal quartz breccia zone is oxidized.

References

MRDSA010189
DEP10000154
Reference{Deposit:: Buddington, A.F., 1929, Geology of Hyder and vicinity, southeastern Alaska, with a reconnaissance of Chickamin River: U.S. Geological Survey Bulletin 807, 124 p.}{Deposit:: Smith, J.G., 1977, Geology of the Ketchikan D-1 and Bradfield Canal A-1 quadrangles, Alaska: U.S. Geological Survey Bulletin 1425, 49 p.}{Deposit:: Berg, H.C., Elliott, R.L., Smith, J.G., Pittman, T.L., and Kimball, A. L., 1977, Mineral resources of the Granite Fiords wilderness study area, Alaska, with a section on aeromagnetic data by Andrew Griscom: U.S. Geological Survey Bulletin 1403, 151 p.}{Deposit:: Elliott, R.L., and Koch, R.D., 1981, Mines, prospects, and selected metalliferous mineral occurrences in the Bradfield Canal quadrangle, Alaska: U.S. Geological Survey Open-File Report 81-728-B, 23 p., 1 sheet, scales 1:250,000 and 1:63,360.}{Deposit:: Alldrick, D.J., 1993, Geology and metallogeny of the Stewart mining camp, northwestern British Columbia: British Columbia Department of Mines and Petroleum Resources Bulletin 85, 105 p., 2 plates.}{Deposit:: Maas, K.M., Bittenbender, P E., and Still, J.C., 1995, Mineral investigations in the Ketchikan mining district, southeastern Alaska: U.S. Bureau of Mines Open-File Report 11-95, 606 p.}
ReporterH. C. Berg