Prospect, 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-2
Latitude 59.6971
Longitude -153.5749
Nearby scientific data Find additional scientific data near this location
Location and accuracy This prospect is at an elevation of about 2,100 feet about 2 miles northeast of Williamsport on Iliamna Bay. It is in the NE1/4 SW1/4 sec. 32, T. 5 S., R. 25 W., Seward Meridian. The location is probably accurate within 0.5 mile. It is locality 26 of Detterman and Cobb (1972).

Geologic setting

Geologic description

This prospect is in an area underlain mainly by Lower or Middle Jurassic quartz diorite containing small roof pendants of mafic and ultramafic rocks (Detterman and Reed, 1980). The mafic and ultramafic rocks include gabbro, hornblende gabbro, hornblendite, and pyroxenite. The deposit consists of veins, disseminations, and irregular pods or lenses of magnetite in the mafic and ultramafic rocks. The deposit possibly is large but low grade (Berg and Cobb, 1967).
Geologic map unit (-153.577115419623, 59.6964655514197)
Mineral deposit model Magnetite deposit in mafic and ultramafic igneous rocks; possible affinity with Alaska PGE? (Cox and Singer, 1986, model 9?).
Mineral deposit model number 9?
Age of mineralization Jurassic.

Production and reserves

Workings or exploration Berg and Cobb (1967) reported that the locality had been staked; there is no record of any workings.
Indication of production None

Additional comments

In addition to nine Phoenix claims, other claims in this area include the Bell 1-4, Heliport 1-9, D Cross 1-2, Smile 1-7, and Strip 1-3 (McFaul and others, 2000).