|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 American mine is located in the SE1/4SW1/4 sec. 22, T. 2 N., R. 2. E., Fairbanks Meridian, in the saddle on the divide between Victoria Creek, a tributary of Smallwood Creek, and Pearl Creek, a tributary of Fish Creek. It is about 1 mile east of Gilmore Dome. The mine is locality 35 of Cobb (1972 [MF 410]).|
Geologic descriptionBy 1913, several tons of ore had been mined from an 18-inch- to 4-foot-wide vein that carried approximately 1.2 ounces of gold per ton (Smith, 1913 [B 525, p. 166]). The gold-quartz vein contained very few sulfides and was oriented N. 50 E., 60 NW. (Chapin, 1914,B[ 592, p. 329-330]). The footwall is a zone of schist, 3 feet wide, that contains small quartz stringers; gold could be panned from most random samples of the quartz (Chapin, 1914 [B 592-J]). This mine lies on the western edge of a Cretaceous granite that intrudes two units of the Fairbanks Schist that are composed of (1) quartz-muscovite schist, quartzite, and chlorite-quartz schist, and (2) amphibolite, magnetite-rich biotite schist, quartz schist, and marble (Newberry and others, 1996). By 1931, the workings were inaccessible, but the material on the dumps was examined and consisted of brecciated schist partly cemented by quartz (Hill, 1933).
|Geologic map unit||(-147.326438039223, 64.9805775885787)|
|Mineral deposit model||Schist-hosted gold-quartz vein|
|Workings or exploration||In 1914, an inclined shaft was 60 feet deep (Chapin, 1914, B 592-J, p. 329-330). By 1931, the workings were inaccessible (Hill, 1933).|
|Indication of production||Yes; small|
|Production notes||In 1911, twenty tons of ore, with a grade of 1.21 ounces of gold per ton, were mined from a 38-foot shaft on the American Eagle claim. There is no record of production after 1913 when several tons of ore were mined (Smith, 1913 [B 525]).|
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.
Newberry, R.J., Bundtzen, T.K., Clautice, K.C., Combellick, R.A., Douglas, T., Laird, G.M., Liss, S.A., Pinney, D.S., Reifenstuhl, R.R., and Solie, D.N., 1996, Preliminary geologic map of the Fairbanks mining district, Alaska: Alaska Division of Geological and Geophysical Surveys Public Data File 96-16, 17 p., 2 sheets, scale 1:63,360.
Smith, P.S., 1913, Lode mining near Fairbanks, in Prindle, L.M., A geologic reconnaissance of the Fairbanks quadrangle, Alaska: U.S. Geological Survey Bulletin 525, p. 153-216.
|Reporters||J.R. Guidetti Schaefer and C.J. Freeman (Avalon Development Corporation)|
|Last report date||7/31/2001|