Unnamed (on Blunt Mountain)

Occurrence, Undetermined

Commodities and mineralogy

Main commodities Pb
Ore minerals galena; pyrite
Gangue minerals hematite; quartz

Geographic location

Quadrangle map, 1:250,000-scale KC
Quadrangle map, 1:63,360-scale A-5
Latitude 55.139
Longitude -131.394
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is at an elevation of about 2000 feet on Blunt Mountain, about 0.15 mile east of the summit. The site is in section 3, T. 78 S., R. 93 E., of the Copper River Meridian. It corresponds to loc. 30 in Berg (1972 [I 684]), loc. 144 in Elliott and others (1978), and loc. 40 in Karl (1992). The location is accurate within a few hundred feet.

Geologic setting

Geologic description

The country rock in the area of this site is Silurian trondhjemite that was regionally metamorphosed to greenschist grade in Late Cretaceous time (Berg, 1972). The occurrence is in sericitized trondhjemite, and consists of sparse galena, hematite(?), and pyrite in iron-stained quartz fissure veins and pods up to 10 feet thick.
Geologic map unit (-131.395681320685, 55.138658994222)
Mineral deposit model Polymetallic veins (Cox and Singer, 1986; model 22c)
Mineral deposit model number 22c
Age of mineralization Fissure veins probably are Late Cretaceous or younger.
Alteration of deposit Sericitization of trondhjemite, and oxidation of iron mineral(s) in veins to hematite(?).

Production and reserves

Indication of production None

References