Gallahorn

Occurrence in Alaska, United States with commodity Copper

Geologic information

Identification information

Deposit ID 10003088
MRDS ID A015617
Record type Site
Current site name Gallahorn

Geographic coordinates

Geographic coordinates: -161.91357, 67.17943 (WGS84)
Relative position This occurrence is about one mile north of the headwaters area of Shiliak Creek. It is in sections 25 and 36, T. 21 N., R. 15 W., of the Kateel River Meridian. Grybeck (1977), location 6 and Schmidt and Allegro (1988), location 182.
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Quartz Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Schist

Nearby scientific data

(1) -161.91357, 67.17943

Comments on the geologic information

  • Geologic Description = Two quartz veins containing chalcopyrite crosscut lower to mid-Paleozoic, pyritiferous schist and phyllite (Schmidt and Allegro, 1988).
  • 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 workings information

  • Workings / Exploration = The site has been visited by the U.S. Geological Survey (Schmidt and Allegro, 1988).

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A015617
USGS Alaska Resource Data File ARDF BM006

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

    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 = Grybeck, 1977

General comments

Subject category Comment text
Deposit Model Name = Chalcopyrite in quartz vein.

Reporter information

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