California; Danzinger Mine, Bonnifield District, Denali Borough, Alaska, USA
Location: The California mine is located in NE1/4 sec. 9, T. 10 S., R. 6 W., Fairbanks Meridian. The exact location of this mine is uncertain, but it is in the canyon of California Creek, near the mouth of Elsie Creek. This prospect is included in locality 41 of Cobb (1972 [MF 410]).
Geology: The California lode mine contains small veins of complex ore in schist. The most valuable component of the ore is silver; however, it also contains some gold, considerable copper, and a little lead (Smith, 1936, p. 24). Ore minerals include a lead-antimony sulfide (probably jamesonite), bismuthinite, arsenopyrite, pyrite, stibnite, chalcopyrite, and argentiferous galena (Joesting, 1943 [ATDM Pamph. 2]; White and others, 1952). Ore samples assayed 0.27 ounces of gold per ton and 259 ounces of silver per ton; one sample contained 600 ounces of silver per ton (Joesting, 1943 [ATDM Pamph. 2]). A few carloads of ore were said to have been produced (Wedow and others, 1952).
Workings: Little is known about this mine.
Production: A few carloads of ore were said to have been produced (Wedow and others, 1952).
Commodities (Major) - Au; (Minor) - Ag, Bi, Cu, Pb, Sb
Development Status: Yes; small
Deposit Model: Polymetallic vein (Cox and Singer, 1986; model 22c)
8 entries listed. 8 valid minerals.
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Berg, H.C., and Cobb, E.H., 1967, Metalliferous lode deposits of Alaska: U.S. Geological Survey Bulletin 1246, 254 p. Cobb, E.H., 1972, Metallic mineral resources map of the Fairbanks quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-410, 1 sheet, scale 1:250,000. Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Fairbanks quadrangle, Alaska: U.S. Geological Survey Open-File Report 76-662, 174 p. Joesting, H.R., 1943, Strategic mineral occurrences in interior Alaska, supplement to pamphlet no. 1: Alaska Territorial Department of Mines Pamphlet 2, 26 p. Smith, P.S., 1936, Mineral industry of Alaska in 1934: U.S. Geological Survey Bulletin 868-A, p. 1-91. Smith, P.S., 1937, Mineral industry of Alaska in 1935: U.S. Geological Survey Bulletin 880-A, p. 1-95. Wedow, Helmuth, Jr., White, M.G. and Moxham, R.M., 1952, Interim report on an appraisal of the uranium possibilities of Alaska: U.S. Geological Survey Open-File Report 51, 123 p. White, M. G., West, W. S., Tolbert, G. E., Nelson, A. E., and Houston, J. R., 1952, Preliminary summary of reconnaissance for uranium in Alaska: U.S. Geological Survey Circular 196, 17 p.
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Locality Updated: Lourinhã, Lisbon District, PortugalFrom Rui Nunes, 10th Dec 2013 18:28:50