Latitude & Longitude (WGS84):
65° 33' 7'' North , 148° 25' 19'' West
Latitude & Longitude (decimal):
Mindat Locality ID:
198650
Long-form identifier:
mindat:1:2:198650:4
Location: Cobb (1972, MF-413) loc. 70. These placer deposits are scattered in the lower mile of Lucky Creek, a tributary of Livengood Creek. The coordinates given are for the placer deposits closest to the mouth of Lucky Creek. Accuracy is within 2,000 feet. Lucky Creek is also called 'Goodluck Creek' and 'Lucky Gulch'. The creek is named 'Lucky Creek' on the U.S.G.S. Livengood C-3 quadrangle.
Geology: Placer mining was reported in 1918, 1934, and 1939. At the lower placer, some flakey gold was obtained just above bedrock. About 1,500 feet upstream, some fine gold is present in angular wash almost at the surface (Mertie, 1918). Minerals in samples from old placer dumps included limonite, hematite, magnetite, epidote, spinel, chromite, ilmenite, gold, cinnabar and cassiterite (Wedow and others, 1954). The bedrock in the basin is chiefly chert and silicified Mississippian limestone. There is a small body of diorite on greenstone near the head of Lucky Creek which may be a dike between the chert and limestone (Wedow and others, 1954). One sample contained a mineral in the euxenite-polycrase series, rare-earth, uranium, niobates and titanates (Wedow and others, 1954). Chromite and chrome spinels are abundant in Lucky Gulch and are probably derived from serpentine in Middle Devonian basic volcanics (Joesting, 1942; ATDM Pamph. 1, p. 17).
Workings: During placer mining, one shaft was sunk 60 feet to bedrock (Mertie, 1918, p. 268).
Production: Placer mining was reported in 1918, 1934, and 1939, but there is no record of amount of production.
Commodities (Major) - Au; (Minor) - Cr, Hg, REE, Sn
Development Status: Yes; small
Deposit Model: Placer gold deposit (Cox and Singer, 1986; model 39a).
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Standard
Detailed Gallery
Strunz
Chemical Elements
Commodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
4 valid minerals.
Gallery:
List of minerals arranged by Strunz 10th Edition classification
List of minerals for each chemical element
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References
Cobb, E.H., 1972, Metallic mineral resources map of the Livengood quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-413, 2 sheets, scale 1:250,000. Cobb, E.H., 1973, Placer deposits of Alaska: U.S. Geological Survey Bulletin 1374, 213 p. Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Livengood quadrangle, Alaska: U.S. Geological Survey Open-File Report 76-819, 241 p. Joesting, H.R., 1942, Strategic mineral occurences in interior Alaska: Alaska Territorial Department of Mines Pamphlet 1, 46 p. Martin, G.C., 1920, The Alaska mining industry in 1918: U.S. Geological Survey Bulletin 712-A, p. 1-52. Mertie, J.B., Jr., 1918, Lode mining in the Fairbanks district, Alaska: U.S. Geological Survey Bulletin 662-H, p. 403-424. Smith, P.S., 1936, Mineral industry of Alaska in 1934: U.S. Geological Survey Bulletin 868-A, p. 1-91. Smith, P.S., 1941, Mineral industry of Alaska in 1939: U.S. Geological Survey Bulletin 926-A, p. 1-106. Wedow, Helmuth, Jr., and White, M.G., 1954, Reconnaissance for radioactive deposits in east-central Alaska, 1949: U.S. Geological Survey Circular 335, 22 p. 
