Unnamed (head of Boss Creek)

Occurrence, Inactive

Commodities and mineralogy

Main commodities As
Other commodities Au; Sb
Ore minerals pyrite
Gangue minerals quartz

Geographic location

Quadrangle map, 1:250,000-scale SM
Quadrangle map, 1:63,360-scale A-7
Latitude 61.08075
Longitude -158.25567
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is at the head of Boss Creek, a north-flowing tributary of the Holokuk River. The occurrence is at an elevation of about 1,400 feet in the SW1/4 sec. 36, T. 12 N., R. 50 W., of the Seward Meridian. The location is approximate.

Geologic setting

Geologic description

This occurrence consists of silicified graywacke of either the Upper Cretaceous, Kuskokwim Group or the Mesozoic Gemuk Group (Cady and others, 1955). The silicified graywacke is cut by quartz veins with disseminated pyrite (Gray, Motooka, and Theodorakos, 1997). No other information is available. One grab sample of silicified graywacke contained 1,000 parts per million (ppm) arsenic, 50 parts per billion (ppb) gold, and 6.1 ppm antimony (Gray, Motooka, and Theodorakos, 1997).
Geologic map unit (-158.257982153511, 61.0800338057605)
Alteration of deposit Silicification of graywacke.

Production and reserves

Workings or exploration The U.S. Geological Survey sampled the occurrence in 1995 (Gray, Motooka, and Theodorakos, 1997).
Indication of production None