Prospect, Undetermined

Commodities and mineralogy

Main commodities Cu; Mo; Zn
Ore minerals chalcopyrite; molybdenite; pyrite

Geographic location

Quadrangle map, 1:250,000-scale TC
Quadrangle map, 1:63,360-scale C-4
Latitude 63.61
Longitude -142.99
Nearby scientific data Find additional scientific data near this location
Location and accuracy The Peternie prospect is located within sections 7 and 18, T. 21 N., R. 14 E., of the Copper River Meridian and sections 12 and 13, T. 21 N., R. 13 E., of the Copper River Meridian. It encompasses about 4 square miles and is 9 miles west of the Dennison Fork of the Fortymile River. It is location 2 of Singer and others (1976). The coordinates given are for the approximate center of the prospect. The location is accurate to within 1/2 mile.

Geologic setting

Geologic description

The Peternie prospect consists of disseminated sulfide minerals in altered and leached quartz monzonite and latite porphyry (Singer and others, 1976). Potassium feldspar in a vein cutting the intrusive has a 40Ar/39Ar age of 102.8 +/- 0.5 Ma (Newberry and others, 1996). In 1974, some drilling and sampling took place. Sampling results show that copper minerals and molybdenite are probably present. Elevated molybdenum and zinc values were also reported in rock grab samples. Seven drill pads are visible from the air, and several thousand feet of drill core are stockpiled on site. Examination of random core boxes in 1984 by Doyon Ltd. showed pervasive potassic, propylitic, and phyllic alteration in the majority of samples examined. Systematic rock and soil sampling have also been conducted on the property (Doyon Ltd., 1998).
Geologic map unit (-142.992250143175, 63.6096551205458)
Mineral deposit model Porphyry Cu-Mo deposit (Cox and Singer, 1986; model 21a)
Mineral deposit model number 21a
Age of mineralization Potassium feldspar in a vein cutting the intrusive has a 40Ar/39Ar age of 102.8 +/ - 0.5 Ma (Newberry and others, 1996).
Alteration of deposit Pervasive hydrothermal alteration, evidenced by potassic, propylitic, and phyllic alteration in core (Doyon Ltd., 1997).

Production and reserves

Workings or exploration Extensive drilling and prospecting took place on the site in the 1970s, as well as airborne magnetometer studies. The property was soil sampled in the early 1980s, and is now within Doyon Ltd. selected lands.
Indication of production None

Additional comments

See North Peternie prospect (TC020) and VW (TC030) prospect. This prospect is located on Doyon Ltd. selected land. For more information, contact Doyon Ltd.
Peternie is sometimes called Paternie, but the correct name is Peternie (Doyon Ltd., 1998).