Unnamed (divide between Partin and Little Shotgun creeks)

Occurrence, Inactive

Commodities and mineralogy

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

Geographic location

Quadrangle map, 1:250,000-scale HE
Quadrangle map, 1:63,360-scale A-6
Latitude 63.04
Longitude -149.93
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is at an elevation of about 4,300 feet on the west side of the divide between Little Shotgun Creek and Partin Creek. The map site is in the NW1/4 of sec. 6, T. 22 S., R. 12 W., of the Fairbanks Meridian. The accuracy of the location is within 1 mile. This is location E-37 of Balen (1990: OFR 34-90).

Geologic setting

Geologic description

The country rocks in the area of this occurrence are a tectonically mixed assemblages of Upper Devonian serpentinite, basalt, chert, and gabbro. The deposit consists of pods of massive chromite in serpentinite. Rock samples from the surface contained low chromium, palladium, and platinum values (Balen, 1990: OFR 34-90). The chromite probably was a mag,atic segregation on the ultramafic host rocks.
Geologic map unit (-149.932283907156, 63.0395164933974)
Mineral deposit model Podiform chromite (Cox and Singer, 1986; model 8a)
Mineral deposit model number 8a
Age of mineralization The chromite probably was a magmatic segregation in Upper Devonian ultramafic intrusive rocks.
Alteration of deposit Serpentinization of ultramafic rocks.

Production and reserves

Workings or exploration Surface sampling only.
Indication of production None

References