Unnamed (upper Windy Creek)

The Unnamed (upper Windy Creek) 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: Unnamed (upper Windy Creek)

Commodity

Primary: Copper

Location

State: Alaska
District: Valdez Creek

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: Propylitic alteration of greenstone.

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Malachite
Ore: Chalcopyrite
Ore: Azurite
Gangue: Quartz
Gangue: Epidote

Comments

Comment (Exploration): Status = Inactive

Comment (Deposit): Model Name = Hydrothermally altered shear zone.

Comment (Reference): Primary Reference = Kaufmann, 1964

Comment (Geology): Geologic Description = The area of this occurrence is underlain by the Middle or Upper Triassic Nikolai Greenstone, a thick sequence of subaerial and submarine basalt flows and minor interbedded volcaniclastic sedimentary rocks, aquagene and epiclastic tuff, breccia, argillite, and radiolarian chert (Nokleberg and others, 1992). The deposit is in a hydrothermally altered shear zone in greenstone, and consists of quartz, epidote, chalcopyrite, and an iron carbonate mineral. Weathering produces malachite- and azurite-coated float and encrustations.

Comment (Geology): Age = Triassic or younger.

Comment (Commodity): Gangue = iron carbonate

References

Reference (Deposit): Nokleberg, W.J., and others, 1992, Circum-North Pacific terrane map, in Tracy, K.V., Anker, E. M., Ryan, C., Hoffman, V. , eds., International conference on Arctic margins, p. 44.

Reference (Deposit): Kaufman, M.A., 1964, Two new occurrences of ore minerals in the Denali area (Healy A-1 and Mt. Hayes B-6): Alaska Territorial Department of Mines Prospect Evaluation 67-4, 5 p.

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