Unnamed (west of Middle Fork Chandalar River)

The Unnamed (west of Middle Fork Chandalar River) 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 (west of Middle Fork Chandalar River)

Commodity

Primary: Copper
Secondary: Lead

Location

State: Alaska
District: Chandalar

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: Chert
Role: Host
Age Type: Host Rock Unit
Age Young: Late Devonian

Analytical Data

Not available

Materials

Ore: Chalcopyrite
Ore: Galena
Ore: Pyrite
Gangue: Quartz

Comments

Comment (Reference): Primary Reference = Menzie and others, 1985

Comment (Deposit): Other Comments = Described as being a stratabound vein in Menzie and others (1985); USGS field station 76ARR408.

Comment (Geology): Geologic Description = Occurrence is described only as black chert, at the contact between Devonian Skajit Limestone and overlying Beaucoup Formation, that contains a pyrite- and chalcopyrite-bearing quartz vein (Menzie and others, 1985). USBM information from a location thought to correspond to this prospect suggests galena is also present (Barker, 1978). No other descriptive information is available.

Comment (Exploration): Status = Inactive

References

Reference (Deposit): Barker, J.C., 1978, Mineral Investigations of certain lands in the eastern Brooks Range: a summary report: US Bureau of Mines Open-File No. 63-78

Reference (Deposit): Menzie, W.D., Reiser, H.N., Brosgi, W.P., and Detterman, R.L., 1985, Map showing distribution of mineral resources (excepting oil and gas) in the Philip Smith Mountains quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Investigations Map MF-879-C, 2 sheets, scale 1:250,000.

The Top Ten Gold Producing States

These ten states contributed the most to the gold production that built the West from 1848 through the 1930s. The Top Ten Gold Producing States.