Unnamed (southwest of The Cone)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Fe
Other commodities Ti
Ore minerals magnetite

Geographic location

Quadrangle map, 1:250,000-scale IL
Quadrangle map, 1:63,360-scale C-3
Latitude 59.516
Longitude -153.8761
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is at an elevation of about 2,000 feet, about 1.5 miles southwest of the 3,028-foot summit of The Cone. The occurrence is near the center of the W1/2 NE1/4 sec. 4, T. 8 S., R. 27 W., Seward Meridian. The ocurrence is the same as number 23 of Detterman and Cobb (1972), and is accurate within about 0.5 mile.

Geologic setting

Geologic description

This occurrence consists of magnetite in Jurassic quartz diorite that locally contains granodiorite and diorite phases (Detterman and Reed, 1980). The magnetite occurs as disseminations, veins, and lenses. The occurrence is possibly large but low grade (Berg and Cobb, 1967).
Geologic map unit (-153.878236865166, 59.5153338742276)
Age of mineralization Probably Jurassic, the age of the host rocks.

Production and reserves

Workings or exploration Berg and Cobb (1967) reported that the occurrence had been staked. No workings are known at the site.
Indication of production None

References