Prospect, Inactive

Commodities and mineralogy

Main commodities Cu
Ore minerals chalcopyrite; malachite

Geographic location

Quadrangle map, 1:250,000-scale MC
Quadrangle map, 1:63,360-scale C-8
Latitude 61.5126
Longitude -143.635
Nearby scientific data Find additional scientific data near this location
Location and accuracy This prospect is south of upper Chokosna River. It is at an elevation of about 4,100 feet, about 2,000 feet north of the center of section 20, T. 4 S., R. 10 E. of the Copper River Meridian. This is locality 104 of MacKevett (1976); the location is accurate to within about 1,000 feet. Cobb and MacKevett (1980) included this prospect under the name 'Kinney-Golden'.

Geologic setting

Geologic description

This prospect consists of chalcopyrite and secondary copper-bearing minerals that are localized along subsidiary faults near a major thrust fault (Moffit, 1918; MacKevett, 1976). The faults cut Triassic Nikolai Greenstone and the lower member of the Triassic and Jurassic(?) McCarthy Formation (MacKevett and others, 1978). The deposits were explored by an adit and trenches.
Geologic map unit (-143.637081656257, 61.5121435611636)
Mineral deposit model Vein
Age of mineralization Jurassic or younger based on the age of the host rocks.
Alteration of deposit Oxidation.

Production and reserves

Workings or exploration The deposits were explored by an adit and trenches.
Indication of production None

Additional comments

The locality is in the Wrangell-Saint Elias National Park and Preserve.