Nanushuk River

Occurrence, Inactive

Commodities and mineralogy

Main commodities Cu
Other commodities Ba; Pb
Ore minerals chalcopyrite; galena
Gangue minerals barite; calcite; quartz

Geographic location

Quadrangle map, 1:250,000-scale CL
Latitude 68.31
Longitude -150.66
Nearby scientific data Find additional scientific data near this location
Location and accuracy Located along west tributary to Nanushuk River, 10 km south of Nanushuk Lake. Known to within one mile.

Geologic setting

Geologic description

Quartz-carbonate veins are exposed in a 15 m-wide zone along the south canyon wall where they cut interbedded siltstone and shale of the Hunt Fork Shale. The veins are up to 30 cm wide and can be traced for at least 8 m along strike. Barite is mainly concentrated along the vein margins which locally contain breccia and slickensides. The vein margins also contain minor chalcopyrite and galena.
Geologic map unit (-150.662799569871, 68.3095872611789)
Mineral deposit model Cu quartz veins.

Production and reserves

Workings or exploration Samples contain up to 420 ppm Cu, 343 ppm Zn, 54 ppm Pb, and more than 2,000 ppm Ba.
Indication of production None