Unnamed (near Kwiniuk River)

The Unnamed (near Kwiniuk River) is a copper, barium-barite, zinc, and lead 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

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Site Name

Primary: Unnamed (near Kwiniuk River)

Commodity

Primary: Copper
Primary: Barium-Barite
Primary: Zinc
Primary: Lead

Location

State: Alaska
District: Council

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: Oxidation; the occurrence is described as a gossan.

Rocks

Not available

Analytical Data

Not available

Materials

Not available

Comments

Comment (Geology): Geologic Description = Miller and Grybeck (1973) report a small gossan in limestone; a grab sample of this gossan contained 500 ppm Cu, 300 ppm Pb, greater than 10,000 ppm Zn, and greater than 5,000 ppm Ba. Bedrock here is Paleozoic marble that is about 1.5 miles east of the Darby pluton (Till and others, 1986).

Comment (Reference): Primary Reference = Miller and Grybeck, 1973

Comment (Workings): Workings / Exploration = There are no known workings or exploration activities at this locality.

Comment (Deposit): Model Name = Base-metal sulfide veins or replacements in marble.

Comment (Geology): Age = Not known; probably mid-Cretaceous or younger. K/Ar ages for the nearby Darby pluton are 88.3 +/- 1.5 and 92.8 +/- 2.6 Ma (Berry and others, 1976).

Comment (Exploration): Status = Inactive

References

Reference (Deposit): Miller, T.P., and Grybeck, D.J., 1973, Geochemical survey of the eastern Solomon and southeastern Bendeleben quadrangles, Seward Peninsula, Alaska: U.S. Geological Survey Open-File Report 553, 115 p.

Reference (Deposit): Gamble, B.M., 1988, Non-placer mineral occurrences in the Solomon, Bendeleben, and southern part of the Kotzebue quadrangles, western Alaska: U.S. Geological Survey Map MF-1838-B, 13 p., 1 sheet, scale 1:250,000.

Reference (Deposit): West, W.S., 1953, Reconnaissance for radioactive deposits in the Darby Mountains, Seward Peninsula, Alaska, 1948: U.S. Geological Survey Circular 300, 7 p.

Reference (Deposit): Till, A.B., Dumoulin, J.A., Gamble, B. ., Kaufman, D.S., and Carroll, P.I., 1986, Preliminary geologic map and fossil data, Soloman, Bendeleben, and southern Kotzebue quadrangles, Seward Peninsula, Alaska: U.S. Geological Survey Open-File Report 86-276, 10 p., 3 plates, scale 1:250,000.

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