Unnamed (on Quartz Creek)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Ag; Pb
Ore minerals argentiferous galena; pyrite
Gangue minerals calcite

Geographic location

Quadrangle map, 1:250,000-scale CA
Quadrangle map, 1:63,360-scale C-5
Latitude 65.57
Longitude -161.43
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is at an elevation of about 450 feet, on an unnamed tributary of Quartz Creek between Deer and Buck Creeks. The map site is in section 18, T. 2 N., R. 13 W., of the Kateel River Meridian. Cobb, 1972 (MF-389), location 4, and Miller and Elliott (1969), figure 2, location 7.

Geologic setting

Geologic description

This occurrence consists of a calcite veinlet containing minor galena. The veinlet cuts altered Jurassic-Cretaceous andesite near its contact with quartz monzonite of the Cretaceous Quartz Creek pluton. A grab sample from this location contained: 300 ppm Pb and a trace Ag (Miller and Elliott, 1969).
Geologic map unit (-161.432652436176, 65.5693273443577)
Mineral deposit model Galena in calcite vein.
Age of mineralization Late Cretaceous.
Alteration of deposit Hydrothermal.

Production and reserves

Workings or exploration The area has been mapped and examined by the U.S. Geological Survey and various exploration companies.
Indication of production None

Additional comments

This site is one of numerous occurrences of argentiferous galena, sphalerite, pyrite and arsenopyrite in an 18-mile-long, 2- to 5-mile-wide zone of altered andesite surrounding the Quartz Creek quartz monzonite pluton. The altered zone trends N 15 W, across the drainage basins of Quartz Creek and the Kiwalik River, parallel to prominent lineaments in the area.

References