Mine detail: Lucky Four

Previously called 'Hump Island'

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Location

Lat / long: 55.5228, -131.75871

Resource(M)

Primary: Copper
Ore: Chalcopyrite, Molybdenite, Pyrite
Gangue: Quartz

Production

Operation type: Unknown
Development status: Prospect

Geology

Host type:Schist
Alteration processes:Locally intense silicification, argillization, and sericitization. Local iron-staining and oxidation of copper minerals.

References

MRDSA012316
DEP10001567
Reference{Deposit:: Elliott, R.L., Berg, H.C., and Karl, Susan, 1978, map and table describing metalliferous and selected nonmetalliferous mineral deposits, Ketchikan and Prince Rupert quadrangles, Alaska: U.S. Geological Survey Open-file Report, 78-73-B,17 p., scale 1:250,000.}{Deposit:: Berg, H.C., Elliott, R.L., and Koch, R.D., 1988, Geologic map of the Ketchikan and Prince Rupert quadrangles, southeastern Alaska: U.S. Geological Survey Mineral Investigations Series Map MF-1807,27 p., scale 1:250,000.}{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.}{Deposit:: Brew, D.A., 1996, Geologic map of the Craig, Dixon Entrance, and parts of the Ketchikan and Prince Rupert quadrangles, southeastern Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-2319, 53 p., 1 sheet, scale 1:250,000.}
ReporterH.C. Berg