Unnamed (head of Martin Creek)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Au
Ore minerals gold
Gangue minerals quartz

Geographic location

Quadrangle map, 1:250,000-scale BG
Quadrangle map, 1:63,360-scale D-4
Latitude 60.8559
Longitude -142.4401
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is on the south end of the smaller of two lakes at the head of Martin Creek. It is at an elevation of about 4,850 feet in the SW 1/4 section 5, T 12 S, R 17 E, of the Copper River Meridian. It is locality 2 of Cobb (1972 [MF 373]; 1979 [OF 79-1246]). The larger of the two lakes at the head of Martin Creek is mislabeled 'Slender Lake' on the 1984 edition of the U.S. Geological Survey Bering Glacier D-4 quadrangle map. Slender Lake is the the headwaters of Bearhole Creek (Brabb and Miller, 1962).

Geologic setting

Geologic description

A quartz vein crosscutting metamorphosed flysch of the Cretaceous Valdez Group contains trace amounts of gold at this locality. A 500-gram sample of the vein yielded a flake of free gold (about 0.0001 gram) after being crushed and panned (Brabb and Miller, 1962).
Geologic map unit (-142.442088736387, 60.8554518184372)
Mineral deposit model Low-sulfide Au-quartz vein (Cox and Singer, 1986; model 36a)
Mineral deposit model number 36a
Age of mineralization Tertiary. The quartz vein crosscuts Valdez Group flysch that was metamorphosed in the Early Tertiary (Hudson and Plafker, 1982).

Production and reserves

Workings or exploration Reconnaissance surface observations have been completed at this locality (Brabb and Miller, 1962).
Indication of production None

Additional comments

This occurrence is within the Wrangell-St. Elias National Park.

References