Unnamed Occurrences (ARDF - PE073; near Steamer Bay), Ketchikan District, Wrangell-Petersburg Borough, Alaska, USA
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Geology: A block of 26 claims was staked in 1972 near the south end of Steamer Bay and they were active through 1973; apparently they have not been active since (U.S. Bureau of Mines, 1980; Still and others, 2002). Rocks in the area consist of massive and pillowed greenstone, pillow breccia, and tuff of the Seymour Canal Formation of Jurassic and Cretaceous age (Brew, 1997 [OF 97-156-A]; Karl and others, 1999). Still and others (2002) traversed two streams for a short distance but did not find any outcropping mineralization. They collected two float samples, the best of which, a piece of silicified breccia, contained 10.9 parts per million (ppm) silver, 1,408 ppm copper, 1.01 percent lead, and 1.9 percent zinc.
Workings: A block of 26 claims was staked in 1972 and they were active through 1973; apparently they have not been active since (U.S. Bureau of Mines, 1980; Still and others, 2002). Still and others (2002) traversed two streams for a short distance but did not find any outcropping mineralization or signs of exploration; they did find two float samples with metal values.
Age: Jurassic or younger based on the age of the rocks in the area.
Commodities (Major) - Ag, Cu, Pb, Zn
Development Status: None
Mineral List
No entries listed.
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References
Brew, D.A., 1997, Reconnaissance geologic map of the Petersburg A-2 quadrangle, southeastern Alaska: U.S. Geological Survey Open-File Report 97-156-A, 20 p., 1 sheet, scale 1:63,360. Grybeck, D.J., Berg, H.C., and Karl, S.M., 1984, Map and description of the mineral deposits in the Petersburg and eastern Port Alexander quadrangles: U.S. Geological Survey Open-File Report 84-837, 86 p., 1 sheet, scale 1:250,000. Karl, S.W., Haeussler, P.J., and McCafferty, A.E., 1999, Reconnaissance geologic map of the Duncan Canal-Zarembo Island area, southeastern Alaska: U.S. Geological Survey Open-File Report 99-0168, 30 p., 1 sheet, scale 1:150,000. Still, J.C., Bittenbender, P.E., Bean, K.W., and Gensler, E.G., 2002, Mineral assessment of the Stikine area, central Southeast Alaska: U.S. Bureau of Land Management Technical Report 51, 560 p. U.S. Bureau of Mines, 1980, Claim map, Petersburg quadrangle, Alaska: U.S. Bureau of Mines Map 117, 1 sheet, scale 1:250,000.