Unnamed (southwest of head of Twelvemile Arm)

Occurrence, Undetermined

Commodities and mineralogy

Main commodities Cu
Ore minerals chalcopyrite; pyrite

Geographic location

Quadrangle map, 1:250,000-scale CR
Quadrangle map, 1:63,360-scale B-3
Latitude 55.3161
Longitude -132.78447
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is probably about 0.2 mile northeast of hill 2337 and about 0.6 mile north-northwest of the center of section 3, T. 76 S., R. 83 E. The location is accurate to within 0.2 mile.

Geologic setting

Geologic description

The occurrence consists of calcareous greenstone that contains pyrite and minor chalcopyrite (Clark and others, 1970 [OF 417]). The greenstone is probably part of the Wales Group of Cambrian and older age (Eberlein and others, 1983; Brew, 1996).
Geologic map unit (-132.786115620175, 55.3157478350274)
Age of mineralization Unknown, other than that the deposit is in rocks of Cambrian or older age.

Production and reserves

Workings or exploration Only sampling by government geologists.
Indication of production None