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Gallahorn

Occurrence, Inactive

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Commodities and mineralogy

Main commodities Cu
Ore minerals chalcopyrite
Gangue minerals quartz

Geographic location

Quadrangle map, 1:250,000-scale BM
Quadrangle map, 1:63,360-scale A-6
Latitude 67.18
Longitude -161.91
Nearby scientific data Find additional scientific data near this location
Location and accuracy 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.

Geologic setting

Geologic description

Two quartz veins containing chalcopyrite crosscut lower to mid-Paleozoic, pyritiferous schist and phyllite (Schmidt and Allegro, 1988).
Geologic map unit (-161.912835764175, 67.1793519873727)
Mineral deposit model Chalcopyrite in quartz vein.
Age of mineralization Devonian?

Production and reserves

Workings or exploration The site has been visited by the U.S. Geological Survey (Schmidt and Allegro, 1988).
Indication of production None

References

MRDS Number A015617

References

Grybeck, Donald, 1977, Map showing known mineral deposits of the Brooks Range, Alaska: U.S. Geological Survey Open-File Report 77-166-C, 45 p., 1 sheet, scale 1:1,000,000.
Reporters Anita Williams (Anchorage, AK)
Last report date 12/29/1999