Unnamed (north of the Gilahina River)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Ag; Pb

Geographic location

Quadrangle map, 1:250,000-scale MC
Quadrangle map, 1:63,360-scale B-7
Latitude 61.4891
Longitude -143.6107
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is on a ridge north of the Gilahina River. It is at an elevation of about 6,150 feet, 800 feet south-southwest of elevation 6444 in the SW1/4 of section 28, T. 4 S., R. 10 E. of the Copper River Meridian. This is locality 103 of MacKevett (1976); the location is accurate to within about 1,000 feet.

Geologic setting

Geologic description

This occurrence consists of a 10-foot-wide iron-stained fault zone that cuts upper Paleozoic volcanic rocks (MacKevett, 1976, 1978). A sample of the altered material contained 7 parts per million (ppm) silver and 200 ppm lead.
Geologic map unit (-143.612780051761, 61.4886439132261)
Age of mineralization Late Paleozoic or younger based on the age of the rocks adjacent to the fault that hosts the deposit.
Alteration of deposit Oxidation.

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