|Quadrangle map, 1:250,000-scale||LG|
|Quadrangle map, 1:63,360-scale||A-1|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||Cobb (1972, MF-413), loc. 37; NW1/4 sec. 36, T. 3 N., R. 1 E., of the Fairbanks Meridian. This prospect is on the ridge at the head of Willow Creek, about a mile WNW of Cleary Summit. Accuracy is within 2,500 feet.|
The prospect consists of a sericitized granite porphyry dike which cuts a stibnite-bearing schist. The stibnite occurs as pods and veinlets in the schist and as a surface coating on the dike contact (Prindle, 1910). Specimens of ore from this deposit are made up of a granular aggregate of stibnite (Brooks, 1916, p. 33; B 649). The aggregates are highly weathered, and a little pyrite occurs with the stibnite. There are also some vitreous quartz grains buried in the stibnite; some of these grains showed crystal terminations (Brooks, 1916, p. 33; B 649).The stibnite contains less that $1 per ton in gold (0.05 ounces of gold per ton) but the grade of the granite porphyry is unknown. The prospect was idle in 1916 and was noted to be associated with a horizontal structure which may have been parallel to foliation (Brooks, 1916; B 649). The Mother Lode prospect was examined as a possible source of antimony in 1942 but no additional exploration was conducted due to insufficient tonnage potential (Killeen and Mertie, 1951).
|Geologic map unit||(-147.465446089859, 65.0495762975531)|
|Mineral deposit model||Stibnite vein (Cox and Singer; model 27d).|
|Mineral deposit model number||27d|
|Alteration of deposit||Stibnite aggregates are highly oxidized and sericite alteration was observed in the granite porphyry dike.|
|Indication of production||None|
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 Livengood quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-413, 2 sheets, scale 1:250,000.
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.
Freeman, C.J., 1992, 1991 Golden Summit project final report, volume 2: Historical summary of lode mines and prospects in the Golden Summit project area, Alaska: Avalon Development Corp., 159 p. (Report held by Freegold Recovery Inc. USA, Vancouver, British Columbia.)
Killeen, P.L., and Mertie, J.B., 1951, Antimony ore in the Fairbanks District, Alaska: U.S. Geological Survey Open-File Report 51-46, 43 p.
|Reporters||C.J. Freeman, J.R. Guidetti Schaefer (Avalon Development Corporation)|
|Last report date||5/4/1999|