Big Creek

Prospect, Active?

Commodities and mineralogy

Main commodities Pb; Zn
Ore minerals galena; pyrite; sphalerite

Geographic location

Quadrangle map, 1:250,000-scale TC
Quadrangle map, 1:63,360-scale C-1
Latitude 63.53
Longitude -141.07
Nearby scientific data Find additional scientific data near this location
Location and accuracy Big Creek prospect is located within section 7, T. 20 N., R. 22 E., of the Copper River Meridian, at about 3000 feet elevation on a northwest facing hillside above Big Creek. It is location 12 of Singer and others (1976), and location 3 of Eberlein and others (1977). The location is accurate to within a mile.

Geologic setting

Geologic description

The Big Creek prospect is in an area of possible stratiform sulfide deposits. It consists of galena, sphalerite and iron sulfides disseminated in quartz-mica schist of Paleozoic and/or Precambrian age (Eberlein and others, 1977, p. 101). The regional geology around the prospect consists of amphibolite-grade quartz-mica schist that is Precambrian to Paleozoic in age (Foster, 1970). High copper anomalies were found in soil samples collected during the early 1970s, although no primary mineralization was found on the surface (David Hedderly-Smith, oral communication, 1998).
Geologic map unit (-141.072231992017, 63.529688207936)
Mineral deposit model Stratiform Pb-Zn volcanogenic deposit?

Production and reserves

Workings or exploration Surface exploration and soil sampling conducted in the 1970s. There probably has been more recent exploration in the area.
Indication of production None

Additional comments

See also Ladue prospect (TC012).