Unnamed

The Unnamed 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

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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
Secondary: Unnamed (southeast of Soda Lake)

Commodity

Primary: Copper

Location

State: Alaska
District: Chisana

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

Not available

Rocks

Name: Basalt
Role: Associated
Age Type: Associated Rock
Age Young: Late Triassic

Name: Basalt
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Triassic

Name: Basalt
Role: Associated
Age Type: Associated Rock
Age Young: Late Triassic

Analytical Data

Not available

Materials

Ore: Copper

Comments

Comment (Reference): Primary Reference = Richter and others, 1975, USGS MF-655K

Comment (Geology): Geologic Description = Native copper in fractures in amygdaloidal basalt flows of Triassic Nikolai Greenstone

Comment (Deposit): Other Comments = the Nikolai Greenstone itself is significant in that it may constitute a future low grade copper resource. It is widespread south of the Denali fault, has an overall thickness of 2000 m and an average copper content of 150 ppm. Locally it contains small deposits of native copper, bornite, chalcocite, and chalcopyrite in amygdules, flow tops and bottoms, fractures and veins. USGS MF-655K, USGS OF 365 and USGS OF 366 contain maps showing several known occurences of copper minerals in the Nikolai Greenstone.

Comment (Deposit): Model Name = Lode: volcanogenic

Comment (Commodity): Ore Material = Copper (native)

Comment (Workings): Workings / Exploration = Type of workings: none

Comment (Exploration): Status = Inactive

References

Reference (Deposit): Richter, D.H., Singer, D.A., and Cox, D.P., 1975, Mineral resources map of the Nabesna quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-655-K, scale 1:250,000.

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