Unnamed (head of Fall Creek)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Ag; Au
Ore minerals gold
Gangue minerals quartz

Geographic location

Quadrangle map, 1:250,000-scale MC
Quadrangle map, 1:63,360-scale B-6
Latitude 61.4669
Longitude -143.158
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is at the head of Fall Creek. It is at an elevation of about 5,000 feet, 2,000 feet west of elevation 6956 in the NW1/4 of section 6, T. 5 S., R. 13 E. of the Copper River Meridian. This is locality 79 of MacKevett (1976); the location is accurate to within about 1,000 feet.

Geologic setting

Geologic description

This occurrence consists of a a 1- to 2-inch thick quartz vein that cuts Tertiary granodiorite (MacKevett, 1976). A sample of the vein contained 7 parts per million (ppm) silver, 0.4 ppm gold, and 5,000 ppm arsenic.
Geologic map unit (-143.160074758743, 61.4664558784101)
Mineral deposit model Vein
Age of mineralization Tertiary based on the age of the granodiorite host rock.

Production and reserves

Workings or exploration Limited surface sampling.
Indication of production None

Additional comments

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

References