Juneau

Occurrence, Inactive

Commodities and mineralogy

Main commodities Cu; Pb
Ore minerals chalcopyrite; galena; pyrite
Gangue minerals quartz

Geographic location

Quadrangle map, 1:250,000-scale BC
Quadrangle map, 1:63,360-scale A-1
Latitude 56.025
Longitude -130.214
Nearby scientific data Find additional scientific data near this location
Location and accuracy The Juneau occurrence is in Section 26 at an elevation of about 3800 feet on a west-facing mountainside above Ferguson Glacier (Elliott and Koch, 1981, p. 13, loc. 40). The location is probably accurate within about a quarter of a mile.

Geologic setting

Geologic description

The country rocks in the area of the Juneau occurrence are pelitic metasedimentary and subordinate andesitic metavolcanic strata of the Jurassic or older Mesozoic Hazelton Group, which are underlain and locally intruded by the Triassic Texas Creek Granodiorite (Smith, 1977; Koch, 1996).
Buddington (1929, p. 108-108) describes the deposit as a quartz vein 3-6 feet thick in Texas Creek Granodiorite. The vein, reportedly traced on the surface for 1300 feet, locally contains small shoots of chalcopyrite. A second vein is said to carry galena and pyrite.
Geologic map unit (-130.215704975937, 56.0246925869645)
Mineral deposit model Polymetallic veins (Cox and Singer, 1986; model 22c).
Mineral deposit model number 22c

Production and reserves

Indication of production None

References