Second Creek Prospect, Valdez Creek District, Matanuska-Susitna Borough, Alaska, USA
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Location: This placer prospect is on Second Creek, an informally named feature that is a north tributary to the Susitna River, whose mouth is about 6 miles downstream from Jay Creek. A placer claim is at about the 2,500-foot elevation on Second Creek; the upper end is accurately located in the SW1/4 sec. 32, T. 32 N., R. 8 E., Seward Meridian. This is locality B27 of Kurtak and others, (1992).
Geology: The prospect is in Quaternary glacial and alluvial deposits (Kurtak and others, 1992). In 1976, a placer claim was staked and assessment work was done through 1983 (Kurtak and others, 1992). Placer samples collected by the U.S. Bureau of Mines contain up to 0.0002 ounce of gold per cubic yard and 1 percent barium (Balen, 1990). The placer concentrates also contain abundant garnet and magnetite.
Workings: In 1976, a placer claim was staked and assessment work was done through 1983 (Kurtak and others, 1992). Placer samples collected by the U.S. Bureau of Mines (Balen, 1990).
Age: Quaternary placer.
Commodities (Major) - Au; (Minor) - Ba
Development Status: None
Deposit Model: Placer Au (Cox and Singer, 1986; model 39a)
3 entries listed. 2 valid minerals.
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Balen, M.D., 1990, Geochemical sampling results from the Bureau of Mines investigations in the Valdez Creek mining district, Alaska: U.S. Bureau of Mines Open-File Report 34-90, 218 p., 2 plates, scale 1:250,000. Csejtey, Bela, Jr., Nelson, W.H., Jones, D.L., Silberling, N.J., Dean, R.M., Morris, M.S., Lanphere, M.A., Smith, J.G., and Silberman, M.L, 1978, Reconnaissance geologic map and geochronology, Talkeetna Mountains quadrangle, northern part of Anchorage quadrangle, and southwest part of Healy quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-558-A, 60 p., 1 sheet, scale 1:250,000. Kurtak, J.M., Southworth, D.D., Balen, M.D., and Clautice, K.H., 1992, Mineral investigations in the Valdez Creek mining district, south-central Alaska: U.S. Bureau of Mines Open-File Report 1-92, 659 p., 2 plates, scale 1:250,000.