Unnamed (south of Bow Pass)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Cu
Ore minerals bornite; chalcocite
Gangue minerals quartz

Geographic location

Quadrangle map, 1:250,000-scale MC
Quadrangle map, 1:63,360-scale D-4
Latitude 61.9377
Longitude -142.1617
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is 1.2 miles south of Bow Pass. It is at an elevation of about 6,700 feet, about 5,000 feet northeast of elevation 8430 in the SW1/4 of section 20, T. 2 N., R. 18 E. of the Copper River Meridian. This is locality 189 of MacKevett (1976). The location is probably accurate to within 1,000 feet.

Geologic setting

Geologic description

This occurrence consists of thin chalcocite- and bornite-bearing quartz veins that are localized along the contact of Tertiary felsite (MacKevett, 1976). A sample of the vein material contained 15 parts per million (ppm) silver and more than 20,000 ppm copper.
Geologic map unit (-142.163822582237, 61.9373151390321)
Mineral deposit model Quartz veins with chalcocite and bornite
Age of mineralization Tertiary based on the age of the felsite host rock.
Alteration of deposit Silicification.

Production and reserves

Workings or exploration Only minor surface sampling.
Indication of production None

Additional comments

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

References