Unnamed (east of Bearpaw Mountain)

The Unnamed (east of Bearpaw Mountain) is a zinc and 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

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Site Name

Primary: Unnamed (east of Bearpaw Mountain)

Commodity

Primary: Zinc
Primary: Copper

Location

State: Alaska
District: Kantishna

Land Status

Not available

Holdings

Not available

Workings

Not available

Ownership

Not available

Production

Not available

Deposit

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

Physiography

Not available

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Not available

Analytical Data

Not available

Materials

Not available

Comments

Comment (Production): Production Notes = There are no indications of production.

Comment (Reference): Primary Reference = Bond, 1985

Comment (Exploration): Status = Inactive

Comment (Deposit): Model Name = Shear-hosted brecciation.

Comment (Deposit): Other Comments = These prospects are located on land selected by or conveyed to Doyon, Limited. For more information, contact Doyon, Limited.

Comment (Workings): Workings / Exploration = A regional stream-sediment sampling and mapping program in 1975-76 identified geochemical anomalies (Bond, 1985).

Comment (Geology): Geologic Description = The bedrock in the area is Ordovician to Silurian siltstone, mudstone, argillite, grit, quartzite, and limestone, and minor amounts of chert and schist (Chapman and Yeend, 1981). Regionally, the area contains a system of northeast-trending strike-slip and related conjugate faults associated with Cretaceous to Tertiary plutonic rocks and coeval or younger volcanic rocks (Clautice and others, 1993). . Black shale crops out on the northwest bank of the Kantishna River. At the prospect sites, the black shale contains brecciated zones along low-angle faults. Bond (1985) reported that these brecciated zones contain weak Zn-Cu mineralization. . A regional stream-sediment sampling and mapping program in 1975-76 identified geochemical anomalies (Bond, 1985). There are no indications of production.

Comment (Geology): Age = Brecciation is younger than Silurian to Ordovician metasedimentary rocks, probably related to Cretaceous to Tertiary plutonism.

References

Reference (Deposit): Bond, James, 1985, Geologic field examinations in Doyon Limited, regional selection block 9: Doyon Limited Report 85-19, 179 p. (Report held by Doyon, Ltd., Fairbanks, Alaska).

Reference (Deposit): Clautice, K.H., Bowman, N.D., Clough, J.G., Gilbert, W.G., Kline, J.T., Smith, T.E., and Blodgett, R.B., 1993, Land selection Unit 8 (Kantishna River, Ruby, and Medfra quadrangles): References, lead isotope, geochemical and major oxide data: Alaska Division of Geological and Geophysical Surveys, 42 p., 1 sheet, scale 1:250,000.

Reference (Deposit): Cobb, E.H., and Chapman, R.M., 1981, Mineral occurrences (other than mineral fuels and construction materials) in the Kantishna River and Ruby quadrangles, Alaska: U.S. Geological Survey Open-File Report 81-170, 94 p.

Reference (Deposit): Cobb, E.H., 1977, Placer deposit map of central Alaska: U.S. Geological Survey Open-File Report 77-168B, 64 p., 1 map, scale 1:1,000,000.

Reference (Deposit): Chapman, R.M., and Yeend, W., 1981, Geologic reconnaissance of the east half of the Kantishna River quadrangle and adjacent areas, in Albert, N.R.D., and Hudson, T., eds, The United States Geological Survey in Alaska, Accomplishments during 1979: U.S. Geological Survey Circular 823-B, 149 p.

Reference (Deposit): Eakin, H.M., 1918, The Cosna-Nowitna region, Alaska: U.S. Geological Survey Bulletin 667, 54 p.

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