Unnamed (north of Beaver Creek)

Prospect, Inactive

Commodities and mineralogy

Main commodities Cu
Ore minerals chalcopyrite; pyrite

Geographic location

Quadrangle map, 1:250,000-scale MC
Quadrangle map, 1:63,360-scale D-1
Latitude 61.9825
Longitude -141.0879
Nearby scientific data Find additional scientific data near this location
Location and accuracy This prospect is on the south side of a small, unnamed east tributary to Beaver Creek. It is at an elevation of about 3,700 feet about 2,000 feet west of the center of section 6, T. 2 N., and R. 24 E. of the Copper River Meridian. This is locality 188 of MacKevett (1976).

Geologic setting

Geologic description

The deposit at this prospect consists of pyrite and minor chalcopyrite in veins and as disseminations in granodiorite and in adjacent hornfels roof pendants (Moffit and Knopf, 1910; MacKevett, 1976). The prospect is on the south side of a prominent shear zone that trends east-west along an unnamed tributary to Beaver Creek (Knaebel, 1970). Bedrock in the area is Jurassic or Cretaceous siliciclastic rocks intruded by Cretaceous granitic rocks (MacKevett, 1978).
Geologic map unit (-141.090021340207, 61.9821718228074)
Age of mineralization Cretaceous? The mineralization appears to be related to the emplacement of Cretaceous granitic rocks.
Alteration of deposit Oxidation. Rusty exposures mark the mineralization (Knaebel, 1970).

Production and reserves

Workings or exploration Probably some minor workings.
Indication of production None

Additional comments

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