Chevron

Occurrence in Alaska, United States with commodity Copper

Geologic information

Identification information

Deposit ID 10003086
MRDS ID A015615
Record type Site
Current site name Chevron

Geographic coordinates

Geographic coordinates: -159.77364, 67.8695 (WGS84)
Relative position The occurrence is at an elevation of about 2,100 feet on a divide halfway between Kanaktok Mountain and VABM Chevron (Grybeck, 1977). It is in section 34, T.29 N., R. 5 W., of the Kateel River Meridian.
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Malachite Ore
Pyrite Ore

Mineral occurrence model information

Model code 233
USGS model code 32c
BC deposit profile E02
Deposit model name Kipushi Cu-Pb-Zn (BC name is Carbonate-hosted Cu)
Mark3 model number none

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Phyllite
    Rock unit name Hunt Fork Shale
    Rock description Hunt Fork Shale

Nearby scientific data

(1) -159.77364, 67.8695

Comments on the geologic information

  • 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).
  • Age = Devonian

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Noatak

Comments on the reserve resource information

  • 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).

Comments on the workings information

  • 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).

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A015615
USGS Alaska Resource Data File ARDF BM019

Bibliographic references

  • 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.

  • 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.

  • 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.

  • 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.

Comments on the references

  • Primary Reference = Degenhart and others, 1978

General comments

Subject category Comment text
Deposit Model Name = Kipushi Cu-Pb-Zn (Cox and Singer, 1986; model 32c).
Deposit Other Comments = the occurrence is located in the Noatak Wilderness of the Noatak National Preserve.

Reporter information

Type Date Name Affiliation Comment
Reporter 29-DEC-99 Williams, Anita U.S. Geological Survey