Unnamed (near Hassler Lake)

Occurrence, Undetermined

Commodities and mineralogy

Main commodities Cu; Pb
Other commodities Zn
Ore minerals chalcopyrite; galena; sphalerite

Geographic location

Quadrangle map, 1:250,000-scale KC
Quadrangle map, 1:63,360-scale A-5
Latitude 55.186
Longitude -131.467
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is at an elevation of about 600 feet on a small knoll, 0.1 mile due west of the southwest corner of Hassler Lake. The site is in sections 18, 19, T. 77 S., R. 93 E., of the Copper River Meridian. It corresponds to loc. 17 in Karl (1992). The location is accurate within 0.1 mile.

Geologic setting

Geologic description

The country rock in the area of this site is Silurian trondhjemite that locally is sheared and sericitized, probably owing to Upper Cretaceous, greenschist-grade regional metamorphism (Berg, 1972 [I 684]). The occurrence consists of sparse base-metal sulfide mineralization in the trondhjemite, and is based on a sample of trondhjemite containing Cu-Pb-Zn sulfide minerals collected by a road construction crew in 1990 (Karl, 1992, loc. 17).
Geologic map unit (-131.468681432128, 55.1856565205324)
Mineral deposit model Disseminated sulfide minerals in trondhjemite.
Alteration of deposit Local sericitization of trondhjemite country rock.

Production and reserves

Indication of production None