Tjosevig

The Tjosevig 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: Tjosevig

Commodity

Primary: Copper
Secondary: Silver

Location

State: Alaska
District: Nizina

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

Model Name: Basaltic Cu (BC name is Volcanic redbed Cu)

Orebody

Not available

Structure

Not available

Alterations

Alteration Type: L
Alteration Text: Oxidation of Cu minerals.

Rocks

Name: Limestone
Role: Host
Age Type: Host Rock Unit
Age Young: Late Triassic

Name: Limestone
Role: Host
Age Type: Host Rock
Age Young: Late Triassic

Analytical Data

Not available

Materials

Ore: Azurite
Ore: Malachite

Comments

Comment (Exploration): Status = Inactive

Comment (Workings): Workings / Exploration = Explored by a short adit, presently caved.

Comment (Deposit): Model Name = Basaltic Cu

Comment (Geology): Geologic Description = Chiefly malachite and azurite deposits in lower part of the Triassic Chitistone Limestone.

Comment (Reference): Primary Reference = Miller, 1946

References

Reference (Deposit): Miller, D.J., 1946, Copper deposits of the Nizina district, Alaska: U.S. Geological Survey Bulletin 947F, p. 93-120.

Reference (Deposit): Berg, H.C., and Cobb, E.H., 1967, Metalliferous Lode Deposits of Alaska. U.S. Geological Survey Bulletin 1246, 254 p.

Reference (Deposit): MacKevett, E.M., Jr., 1974, Geologic map of the McCarthy B-5 quadrangle, Alaska: U.S. Geological Survey Geologic Quadrangle Map GQ-1146, scale 1:63,360.

Reference (Deposit): MacKevett, E.M., Jr., 1976, Mineral deposits and occurrences in the McCarthy quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-773-B, scale 1:250,000.

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