Galena Mine, Juneau District, Skagway-Hoonah-Angoon Borough, Alaska, USA
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Location: The deposit is at an elevation of about 500 feet on the west shore of Reid Inlet, about 1.5 miles south of the mouth of the Inlet. It is in the NE 1/4, section 12, T. 35 S., R. 51 E., of the Copper River Meridian. The location is accurate within 200 feet. The Galena mine is location 25 of Cobb (1972).
Geology: The Galena mine is largely covered by surficial deposits, inferred to be mainly lateral moraine from a more extensive Reid Glacier (Rossman, 1959, B 1058-B, pl. 4). It is within the part of the Reid Inlet gold area or district that is underlain by granodiorite of Cretaceous age. The prospect was completely sloughed when MacKevett and others (1971) searched for it. Twenhofel and others (1949) described the Galena deposit as a banded and vuggy quartz vein between 4-18 inches in width that was exposed on strike for 60 feet. The vein contained pyrite, sphalerite, and galena, and locally native gold.
Workings: Surface workings only. The vein was discovered and located in 1937 by Joe Ibach. Reed (1938) collected a one-foot sample that assayed 0.16 ounce per ton gold, 0.30 ounce per ton silver and 0.79 percent zinc. About 30 tons of ore reportedly was mined by Ibach and Tom Smith in 1939 (Twenhofel and others, 1949, p. 31). The ore had a value of about $60 per ton (about 1.7 ounces of gold per ton).
Age: Late Cretaceous or younger.
Production: Thirty tons of ore--reported by Twenhofel and others (1949) who visited prospect in 1940.
Reserves: Unknown.
Commodities (Major) - Au; (Minor) - Ag, Pb, Zn
Development Status: Yes; small
Deposit Model: Low-sulfide gold-quartz vein (Cox and Singer, 1986; model 36a).
Mineral List
5 entries listed. 5 valid minerals.
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References
Cobb, E.H., 1972, Metallic mineral resources map of the Mount Fairweather quadrangle, AK: U.S. Geological Survey Miscellaneous Field Study Map MF-436, 1 sheet, scale 1:250,000. Kimball, A.L., Still, J.C., and Rataj, J.L., 1978, Mineral resources, in Brew, D. A., and others, Mineral resources of the Glacier Bay National Monument wilderness study area, Alaska: U.S. Geological Survey Open-File Report 78-494, p. C1-C375. MacKevett, E.M., Jr., Brew, D.A., Hawley, C.C., Huff, L.C., and Smith, J.G., 1971, Mineral resources of Glacier Bay National Monument, Alaska: U.S. Geological Survey Professional Paper 632, 90 p., 12 plates, scale 1:250,000. Reed, J.C., 1938, Some mineral deposits of Glacier Bay and vicinity, Alaska: Economic Geology, v. 33, p. 52-80. Twenhofel, W.S., Reed, J. C., and Gates, G.O., 1949, Some mineral investigations in southeastern Alaska: U.S. Geological Survey Bulletin 963-A, p. 1-45.