Unnamed (on upper Kanuti River)

Occurrences, Inactive

Commodities and mineralogy

Main commodities Cr
Other commodities Co; Ni; PGE
Ore minerals chromite

Geographic location

Quadrangle map, 1:250,000-scale BT
Quadrangle map, 1:63,360-scale B-2
Latitude 66.4019
Longitude -150.739
Nearby scientific data Find additional scientific data near this location
Location and accuracy This site includes several similar several occurrences in a northeast-southwest-trending area centered about 2 miles northwest of Caribou Mountain. The center of the occurrences is about 0.2 mile southwest of the center of section 10, T. 18 N., R. 15 W., of the Fairbanks Meridian. The other occurrences extend for about 1 mile northeast and and 1 mile southwest in a band that is about one mile wide.

Geologic setting

Geologic description

Several small occurrences of disseminated and massive chromite in dunite and peridotite were found in the upper Kanuti River ultramafic complex (Foley, 1992). The area is geologically similar to the Caribou Mountain occurrence (BT011), but there is little information specific to this site. Samples contain as much as 1.5 percent chromium (Foley and McDermott, 1983).
Geologic map unit (-150.741640133101, 66.4014389559193)
Mineral deposit model Podiform chromite (Cox and Singer, 1986; model 8a).
Mineral deposit model number 8a
Age of mineralization The chromite is an normal primary constituent of Jurassic or older ultramafic rocks.

Production and reserves

Workings or exploration Only surface sampling.
Indication of production None

Additional comments

See also: Caribou Mountain (BT011); Lower Kanuti (BT014).

References