|Quadrangle map, 1:250,000-scale||FB|
|Quadrangle map, 1:63,360-scale||A-4|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||The Homestake mine is located in sec. 33, T. 10 S., R. 5 W., Fairbanks Meridian. Placer mining on Homestake Creek, in the Fairbanks quadrangle, took place along the lower mile of the creek. However, most mining took place upstream in the Healy quadrangle. Homestake Creek is a tributary of the Totatlanika River and is about 10 miles east-southeast of the Liberty Bell mine. This mine is locality 74 of Cobb (1972 [MF410]).|
Geologic descriptionHomestake Creek was one of the most important gold-producing creeks in the Totatlanika basin. The upper part of the basin, in the Healy quadrangle, is underlain by sand, clay, gravel, and lignitic coal (Capps, 1912). The stream then flows through a ridge of schist that has been intruded by andesite (Capps, 1912; Wahrhaftig, 1970 [GQ-810]). In 1912, placer operations were in and immediately upstream of the canyon where gold was first discovered near the mouth of Fox Gulch in the Healy quadrangle (Capps, 1912; Maddren, 1918). The richest placers are below a zone that contains many quartz veins in carbonaceous slate (Maddren, 1918). Gravels are generally 6 feet deep on decayed schist bedrock. The gold is rusty and rather coarse; it is found mainly in the top foot of schist bedrock (Capps, 1912). The gold varies from 833 to 842 fine (Glover, 1950).
|Geologic map unit||(-148.552334074534, 63.9995484466119)|
|Mineral deposit model||Placer Au (Cox and Singer, 1986; model 39a)|
|Mineral deposit model number||39a|
|Age of mineralization||Quaternary placer.|
|Workings or exploration||Small-scale mining occurred from 1905 to 1909 and in 1912, 1935, 1936, and 1939 (Cobb, 1976 [OFR 76-662, p. 73]).|
|Indication of production||Yes; small|
|Production notes||About 3,870 ounces of gold was produced from 1905 to 1909 (Maddren, 1918). There is no information available of the amount of production in subsequent years.|
Brooks, A.H., 1911, The Mount McKinley region, Alaska, with descriptions of the igneous rocks and of the Bonnifield and Kantishna districts by L.M. Prindle: U.S. Geological Survey Professional Paper 70, 234 p.
Capps, S.R., 1911, Mineral resources of the Bonnifield region: U.S. Geological Survey Bulletin 480-H, p. 218-235.
Capps, S.R., 1912, The Bonnifield region, Alaska: U.S. Geological Survey Bulletin 501, 64 p., 1 sheet, scale 1:250,000.
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.
Glover, A.E., 1950, Placer gold fineness: Alaska Territorial Department of Mines Miscellaneous Report 195-1, 38 p.
Maddren, A.G., 1918, Gold placers near the Nenana coal field: U.S. Geological Survey Bulletin 662-G, p. 363-402.
Prindle, L.M., 1907, The Bonnifield and Kantishna regions, Alaska: U.S. Geological Survey Bulletin 314-L, p. 205-226.
Smith, P.S., 1937, Mineral industry of Alaska in 1935: U.S. Geological Survey Bulletin 880-A, p. 1-95.
Smith, P.S., 1938, Mineral industry of Alaska in 1936: U.S. Geological Survey Bulletin 897-A, p. 1-107.
Smith, P.S., 1941, Mineral industry of Alaska in 1939: U.S. Geological Survey Bulletin 926-A, p. 1-106.
|Reporters||J.R. Guidetti Schaefer and C.J. Freeman (Avalon Development Corporation)|
|Last report date||7/31/2001|