Chevron

The Chevron 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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Site Name

Primary: Chevron

Commodity

Primary: Copper

Location

State: Alaska
District: Noatak

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

Model Name: Kipushi Cu-Pb-Zn (BC name is Carbonate-hosted Cu)

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Pyrite
Ore: Chalcopyrite
Ore: Malachite

Comments

Comment (Exploration): Status = Inactive

Comment (Deposit): Other Comments = the occurrence is located in the Noatak Wilderness of the Noatak National Preserve.

Comment (Geology): Age = Devonian

Comment (Deposit): Model Name = Kipushi Cu-Pb-Zn (Cox and Singer, 1986; model 32c).

Comment (Reserve-Resource): Reserves = the inferred tonnage and grade are very small. The potential for significant tonnage of material assaying more than 0.4% copper is considered remote (Degenhart and others, 1978).

Comment (Workings): Workings / Exploration = The site has been visited and sampled by the U.S. Geological Survey (Schmidt and Allegro, 1988) and U.S. Bureau of Mines (Degenhart and others, 1978).

Comment (Reference): Primary Reference = Degenhart and others, 1978

Comment (Geology): Geologic Description = This occurrence consists of sulfide-bearing quartz lenses in Upper Devonian phyllite (Schmidt and Allegro, 1988). The lenses contain pyrite, chalcopyrite, and a little malachite. The mineral-bearing zone occurs in an area of about 100 feet by 6 feet. Assays of grab samples indicate an average grade of 0.37% copper (Degenhart and others, 1978).

References

Reference (Deposit): Schmidt, J.M., and Allegro, G.L., 1988, Map showing mineral occurrences and indicators in the Baird Mountains quadrangle, northwestern Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-1992, 1 sheet, scale 1:250,000.

Reference (Deposit): Cobb, E.H., Mayfield, C.F., and Brosge, W.P., 1981, Summaries of data on and lists of references to metallic and selected nonmetallic mineral occurrences in eleven quadrangles in northern Alaska (Arctic, Baird Mountains, Chandler Lake, DeLong Mountains, Demarcation Point, Howard Pass, Misheguk Mountain, Mount Michelson, Noatak, Point Lay, and Table Mountain); Supplement to Open-File Report 75-628; Part A, Summaries of data to January 1, 1981: U.S. Geological Survey Open-File Report 81-767-A, 25 p.

Reference (Deposit): Grybeck, D.J., 1977, Known mineral deposits of the Brooks Range, Alaska: US Geological Survey Open-File Report 77-166C, 41 p., 1 sheet, scale 1:1,000,000.

Reference (Deposit): Degenhart, C.E., Griffis, R.J., McQuat, J.F., and Bigelow, C.G., 1978, Mineral studies of the western Brooks Range performed under contract to the U.S. Bureau of Mines, Contract #JO155089: U.S. Bureau of Mines Open-File Report 103-78, 529 p., 11 sheets.

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