|Quadrangle map, 1:250,000-scale||FB|
|Quadrangle map, 1:63,360-scale||D-1|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||The Voght propspect is located in the NW1/4NE1/4 sec. 21, T. 2 N., R. 2 E., Fairbanks Meridian. This prospect is about 1 mile north of Gilmore Dome, near Melba Creek. This prospect is now part of the Fort Knox gold mine (FB115). The prospect is locality 33 of Cobb (1972 [MF 410]).|
Geologic descriptionGold, scheelite, native bismuth, bismuthinite and an undetermined tellurium mineral occur in a 5-inch-thick, nearly vertical quartz vein that trends east and cuts porphyritic biotite granite (Chapin, 1914 [B 592-J, p. 330-331]). Mertie (1917, p. 412) reported that there were two quartz veins separated by 3 feet of shattered granite; these veins were oriented N. 5 W., 80 W. and contained gold, scheelite, bismuthinite, and an unknown tellurium mineral. When visited in July of 1949, the working were completely caved (Wedow and others, 1954). All that remained was highly disintegrated rock on dumps around an old filled shaft and the ruins of a small mill. This is now the site of the Fort Knox gold mine, the largest gold mine in Alaska (FB115).
|Geologic map unit||(-147.354439927979, 64.9925769454096)|
|Mineral deposit model||Gold-tungsten-bismuth-tellurium-quartz vein in porphyritic biotite granite; commonly referred to as a Fort-Knox-type porphyry gold deposit.|
|Workings or exploration||When visited in July of 1949, the workings were completely caved (Wedow and White, 1954). All that remained was disintegrated rock on dumps around an old filled shaft and the ruins of a small mill.|
|Indication of production||Yes; small|
|Production notes||The ruins of a small mill were found in 1949 but there is no record of the amount of production (Wedow and White, 1954).|
|MRDS Number||A015305; D002665|
Brooks, A.H., 1921, The future of Alaska mining, in Martin, G.C., and others, Mineral resources of Alaska, 1917: U.S. Geological Survey Bulletin 714-A, p. 5-57.
Chapin, Theodore, 1914, Lode mining near Fairbanks, Alaska: U.S. Geological Survey Bulletin 592-J, p. 321-355.
Chapman, R.M., and Foster, R.L., 1969, Lode mines and prospects in the Fairbanks district, Alaska: U.S. Geological Survey Professional Paper 625-D, 25 p., 1 plate.
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.
Hill, J.M., 1933, Lode deposits of the Fairbanks district, Alaska: U.S. Geological Survey Bulletin 849-B, p. 29-163.
Mertie, J.B., Jr., 1918, Lode mining in the Fairbanks district, in Brooks, A.H., and others, Mineral resources of Alaska, report on progress of investigations in 1916: U.S. Geological Survey Bulletin 662, p. 403-424.
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.
|Reporters||J.R. Guidetti Schaefer and C.J. Freeman (Avalon Development Corporation)|
|Last report date||7/31/2001|