Harrais

The Harrais 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: Harrais

Commodity

Primary: Copper
Secondary: Zinc
Secondary: Silver
Secondary: Lead

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

Not available

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Name: Marble
Role: Host
Age Type: Host Rock
Age Young: Late Permian

Name: Marble
Role: Host
Age Type: Host Rock Unit
Age Young: Late Permian

Analytical Data

Not available

Materials

Ore: Azurite
Ore: Bornite
Ore: Chalcopyrite
Ore: Galena
Ore: Malachite
Ore: Sphalerite

Comments

Comment (Reference): Primary Reference = Seitz, 1963

Comment (Workings): Workings / Exploration = Several short drifts and surface workings. Assay of massive sulfide pod showed: 4.78 percent Cu, 6.53 percent Pb, 13.15 percent Zn (Seitz, 1963).

Comment (Deposit): Model Name = Lode: massive, disseminated.

Comment (Geology): Geologic Description = Small, sporadically distributed pods and disseminations of chalcopyrite, galena, sphalerite, bornite, pyrite, silver, malachite and azurite. Localized in shear zones mainly in Permian marble.

Comment (Exploration): Status = Inactive

References

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., 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.

Reference (Deposit): Seitz, J.F., 1963, Copper prospect in the upper Chitina Valley, Alaska, in Contributions to Economic Geology of Alaska: U.S. Geological Survey Bulletin 1155, p. 66-72.

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