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Unnamed Mine (ARDF - TA024; west of upper Taylor Creek), Aniak District, Dillingham Borough, Alaska, USA

Latitude: 60°52'19"N
Longitude: 157°26'16"W
Location: This mine is in the headwaters of an unnamed north tributary to Kiknik Creek. A small saddle separates the mine from the headwaters of upper Taylor Creek (TA008) to the east. The mine, which was active as of August 2005, is in the NW1/4, section 16, T. 9 N., R. 46 W. of the Seward Meridian.
Geology: Like Taylor Creek (TA008) to the east, this placer is in a drainage that marks the approximate boundary between hornfels associated with the Taylor Mountain pluton and non-metamorphosed clastic sedimentary rocks of the Kuskokwim Group. Bedrock in the mine area is non-metamorphosed Kuskokwim Group sedimentary rocks. In some recent years to at least 2005, open cut mining has taken place on this creek early in the summer when water is available. The BLM sampled this deposit in 2004 (Ellefson and others, 2005). Their 2-pan, concentrate sample contained 40 to 60 very fine to fine gold colors. After removal of visible gold, this sample contained 305 parts per million (ppm) gold, 60.1 ppm silver, 267 ppm mercury, 1,660 ppm manganese, 2,350 ppm tin, less than 0.01 ppm tantalum, and 820 ppm tungsten. Two samples of sluice concentrate contained 556 and greater than 1,500 ppm silver, 37.1 and 171 ppm mercury, 5,130 and greater than 10,000 ppm manganese, 1,400 and 2,330 ppm tin, 0.6 ppm tantalum, and 15.7 and 36 percent tungsten. Abundant wolframite with minor magnetite and scheelite were identified in the concentrate samples.
Workings: In some recent years to at least 2005, open cut mining has taken place on this creek early in the summer when water is available. The BLM sampled this placer in 2004.
Age: Quaternary.
Production: In recent years and through 2005, this mine produced a small amount of gold each year. The concentrates also contain some tin and tungsten but neither commodity is recovered or marketed.
Reserves: Unknown but probably some (in 2005).

Commodities (Major) - Au; (Minor) - Ag, Sn, W
Development Status: Yes, small
Deposit Model: Placer Au (Cox and Singer, 1986; model 39a)

References

Ellefson, R. M., Hoppe, J. E., Kurtak, J. M., and Meyer, M. P., 2005, Mineral investigations in the Aniak mining district, southwestern Alaska, 2004 field season: Bureau of Land Management Open File Report, 100, 44 p.

Mineral List

Gold
Magnetite
Scheelite
Wolframite


4 entries listed. 3 valid minerals.

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Copyright © Jolyon Ralph and Ida Chau 1993-2011. Jobs in Alaska, USA Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 12th Jun 2011 15:14:06
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