Unnamed (on Kupreanof Peninsula)

The Unnamed (on Kupreanof Peninsula) is a copper mine located in Alaska.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.

Site Name

Primary: Unnamed (on Kupreanof Peninsula)

Commodity

Primary: Copper
Secondary: Zinc
Secondary: Silver

Location

State: Alaska
District: Alaska Peninsula

Land Status

Not available

Holdings

Not available

Workings

Not available

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Years of Production:
Organization:
Significant:

Physiography

Not available

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Not available

Alterations

Alteration Type: L
Alteration Text: Hollister (1978) reported phyllic, propylitic, and argillic alteration in an area marked by a large color anomaly.

Rocks

Not available

Analytical Data

Not available

Materials

Not available

Comments

Comment (Exploration): Status = Inactive

Comment (Deposit): Other Comments = This occurrence is in the Alaska Peninsula National Wildlife Refuge, near the boundary of land selected by the Bristol Bay Native Corporation.

Comment (Geology): Geologic Description = There are contradictory descriptions of the geology of the area of this occurrence. MacKevett and Holloway (1977) and Hollister (1978) reported several altered zones in Tertiary bedded rocks, in or near Tertiary granitic plutons. Hollister (1978) classified the plutons as quartz diorite and reported a color anomaly marking areas of stockwork mineralization accompanied by phyllic, argillic, and propylitic alteration. In the mid-1980s the U.S. Geological Survey mapped the rocks in the area as Eocene to Oligocene Meshik Formation, and did not report any granitic rocks (Wilson and others, 1995). They collected few samples that were reported to be anomalous in copper, silver, and zinc (Wilson and others, 1988).

Comment (Geology): Age = Tertiary.

Comment (Reference): Primary Reference = Wilson and others, 1988

Comment (Workings): Workings / Exploration = The U.S. Geological Survey mapped and sampled this area in the mid-1980's. Samples 83AYb590-594 and 83AWs78-81 were reported to be anomalous in copper, zinc, and silver (Wilson and others, 1988).

References

Reference (Deposit): MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous mineral deposits in the western part of southern Alaska: U.S. Geological Survey Open-File Report 77-169-F, 38 p., 1 sheet, scale 1:1,000,000.

Reference (Deposit): Wilson, F.H., White, W.H., and DuBois, G.D., 1988, Brief descriptions of mines, prospects, and mineral occurrences in the Port Moller and Stepovak Bay quadrangles, Alaska Peninsula: U.S. Geological Survey Open-File Report 88-666, 128 p., scale 1:250,000.

Reference (Deposit): Angeloni, L.M., Wilson, F.H., and Sutlet, S., 1985, Map and tables showing preliminary rock geochemical data, Port Moller, Stepovak Bay, and Simeonof Island quadrangles, Alaska: U.S. Geological Survey Open-File Report 85-470, 179 p., 1 map sheet, scale 1:250,000.

Reference (Deposit): Wilson, F.H., Detterman, R.L., Miller, J. W., and Case, J.E., 1995, Geologic map of the Port Moller, Stepovak Bay, and Simeonof Island quadrangles, Alaska: U.S. Geological Survey Miscellaneous Investigation Series Map I-2272, 1 map sheet, scale 1:250,000.

Reference (Deposit): Hollister, V.F., 1978, Geology of the porphyry copper deposits of the Western Hemisphere; New York, Society of Mining Engineering, American Institute of Mining, Metallurgy, and Petroleum Engineers Incorporated, 218 p.

The Top Ten Gold Producing States

These ten states contributed the most to the gold production that built the West from 1848 through the 1930s. The Top Ten Gold Producing States.