Mount Sorensen

Occurrences, Inactive

Commodities and mineralogy

Main commodities Cr; Pd; Pt
Ore minerals chromite
Gangue minerals serpentine

Geographic location

Quadrangle map, 1:250,000-scale EA
Quadrangle map, 1:63,360-scale D-5
Latitude 64.9866
Longitude -143.042
Nearby scientific data Find additional scientific data near this location
Location and accuracy The Mount Sorensen occurrences cover an approximately 4-square-mile area centered about 3 miles west of Mount Sorensen, in section 22, T. 2 N., R. 23 E., of the Fairbanks Meridian.

Geologic setting

Geologic description

Mount Sorensen is the largest ultramafic body in the Eagle quadrangle, and it is composed of partially serpentinized peridotite, dunite, and harzburgite (Foster and Keith, 1974). As much as 1 percent chromite is present in some of the least serpentinized rocks. Serpentinized dunite and harzburgite at Mount Sorensen were assayed using fire assay and spectrographic methods; they contain as much as 0.01 ppm platinum and up to 0.01 ppm palladium (Keith and Foster, 1973).
Geologic map unit (-143.044348637677, 64.9862582426255)

Production and reserves

Indication of production None