Unnamed (north of the Gilahina River)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Ag; Cu
Ore minerals chalcopyrite

Geographic location

Quadrangle map, 1:250,000-scale MC
Quadrangle map, 1:63,360-scale B-7
Latitude 61.4824
Longitude -143.5927
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is at the head of an unnamed north tributary to the Gilahina River. It is at an elevation of about 4,700 feet, 3,500 feet west-northwest of peak 6820 and 4,300 feet southeast of elevation 6444. The site is in the NE1/4 of section 33, T. 4 S., R. 10 E. of the Copper rRver Meridian. This is locality 102 of MacKevett (1976); the location is accurate to within about 1,000 feet.

Geologic setting

Geologic description

MacKevett (1976) describes this as a vein- and disseminated-type deposit in altered upper Paleozoic volcanic rocks. A sample contained 3 parts per million (ppm) silver and 2,000 ppm copper.
Geologic map unit (-143.594779488681, 61.4819443760218)
Mineral deposit model Vein and disseminated
Age of mineralization Late Paleozoic or younger based on the age of the host rocks (MacKevett, 1978).

Production and reserves

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

Additional comments

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

References