Turk Creek

Mine, Active

Commodities and mineralogy

Main commodities Au
Other commodities Cr
Ore minerals chromite; gold

Geographic location

Quadrangle map, 1:250,000-scale EA
Quadrangle map, 1:63,360-scale A-1
Latitude 64.0363
Longitude -141.1287
Nearby scientific data Find additional scientific data near this location
Location and accuracy Turk Creek is a small tributary of Cherry Creek. Two separate areas with placer workings are present on Turk Creek; the first extends 500 feet upstream from the mouth of the creek, and the second area starts at the forks about a mile above its mouth and extends about 1,500 feet up the south fork of Turk Creek. The coordinates are the approximate midpoint of the upper placer workings on the south fork of Turk Creek, in section 17, T. 26 N., R. 22 E., of the Copper River Meridian. The location is accurate.

Geologic setting

Geologic description

The rocks in the vicinity of Turk Creek are Paleozoic amphibolite-facies gneiss, schist, and amphibolite, and minor marble (Foster, 1969 [B 1271-G]). Bedrock along the north fork of Turk Creek largely consists of metagabbro; bedrock along the south fork of Turk Creek is serpentinized ultramafic rocks (R.L. Flynn, unpub. data, 2000). Sparse rocks comprised largely of chromite grains as large as 5 millimeters in diameter occur as float in the south fork of Turk Creek (R.L. Flynn, unpublished data, 2000); they may be derived from the large serpentinized ultramafic body in the headwaters of Turk Creek (see EA161). Placer gold in Turk Creek has a fineness of 815 parts of gold per thousand (Metz and Hawkins, 1981).
Prospecting for placer gold occurred on Turk Creek in 1954 (Alaska Department of Mines, 1955). Small open-cut mines were active on Turk Creek from 1983 to 1994 and in 1999 and 2000 (Yeend, 1996; Norm LaFramboise, Boundary Explorations, Inc., written communication, 2000).
Geologic map unit (-141.130962882446, 64.0359883124469)
Mineral deposit model Placer Au (Cox and Singer, 1986; model 39a).
Mineral deposit model number 39a
Age of mineralization Quaternary.

Production and reserves

Workings or exploration Prospecting for placer gold occurred on Turk Creek in 1954 (Alaska Department of Mines, 1955). Small open-cut mines were active on Turk Creek from 1983 to 1994 and in 1999 and 2000 (Yeend, 1996; Norm LaFramboise, Boundary Explorations, Inc., written communication, 2000).
Indication of production Yes; small
Production notes Placer gold in Turk Creek has a fineness value of 815 parts gold per thousand (Metz and Hawkins, 1981).

References