Unnamed (south of Pet Lake)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Cu; Sb; Zn
Ore minerals chalcopyrite; cuprite; sphalerite
Gangue minerals quartz

Geographic location

Quadrangle map, 1:250,000-scale WI
Quadrangle map, 1:63,360-scale C-4
Latitude 67.606
Longitude -151.9062
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is about 1.3 miles south-southeast of the east end of Pet Lake. It is in a creek at an elevation of about 3,250 feet, 0.5 mile east of the top of hill 4116, in the SE 1/4 of section 12, T. 32 N., R. 20 W., of the Fairbanks Meridian. The occurrence is the site of sample 348 in Dillon and others (1981). The location is accurate.

Geologic setting

Geologic description

Dillon and others (1981, locality 348 [AOF 133B]) describe this occurrence as a mineralized layer 300 meters long and 5 to 250 cm thick, that is composed mainly of fine-grained quartz that contains chalcopyrite, and sparse cuprite and sphalerite. A single chip sample from outcrop contains 2% copper, more than 100 ppm antimony, and 20 ppm zinc. The rocks in the area are Devonian, Skajit Limestone and Middle or Upper Devonian black phyllite, dark limestone, and conglomerate (Dillon and others, 1986).
Geologic map unit (-151.908958304105, 67.605546184944)
Mineral deposit model Polymetallic replacement deposit? (Cox and Singer, 1986; model 19a?).
Mineral deposit model number 19a?

Production and reserves

Workings or exploration Only surface sampling.
Indication of production None

Additional comments

This occurrence is located within Gates of the Arctic National Park.

References