Oreo

The Oreo 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: Oreo
Secondary: Oreo Mountain

Commodity

Primary: Copper

Location

State: Alaska
District: Fortymile

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: Porphyry Cu-Mo

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Not available

Analytical Data

Not available

Materials

Not available

Comments

Comment (Deposit): Model Name = Porphyry Cu? (Cox and Singer, 1986; model 21a)

Comment (Reference): Primary Reference = This description

Comment (Geology): Geologic Description = The Oreo Mountain prospect was initially staked in the 1970's by Cities Services Mineral Corp. as a possible porphyry Cu deposit. It has a reportedly large intriguing geochemical anomaly (David Hedderly-Smith, oral communication, 1998). The regional geology is mapped as Paleozoic and/or Precambrian biotite gneiss, amphibolite grade. The prospect is located within the Y1 subterrane of the Yukon-Tanana terrane (Foster and Keith, 1994).

References

Reference (Deposit): Foster, H.L., and Keith, T.E.C., 1994, Geology of the Yukon-Tanana area of east-central Alaska: in Plafker, G. and Berg, H.C., eds, The geology of North America, vol. G-1, The geology of Alaska: Geological Society of America, p. 205-240.

Reference (Deposit): Foster, H.L., 1970, Reconnaissance geologic map of the Tanacross quadrangle, Alaska: U.S. Geological Survey Miscellaneous Geological Investigations Map I-593, 1 sheet, scale 1:250,000.

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