Cottonblossom (ARDF #FB020) Au

Cottonblossom

Prospect, Inactive

Alternative names

St. Jude
Olsen

Commodities and mineralogy

Main commodities	Au
Other commodities	Sb
Ore minerals	gold; stibnite

Geographic location

Quadrangle map, 1:250,000-scale	FB
Quadrangle map, 1:63,360-scale	D-3
Latitude	64.867
Longitude	-148.068
Nearby scientific data	Find additional scientific data near this location
Location and accuracy	The Cottonblossom prospect is located in the NW1/4 SE1/4 sec. 36, T. 1 N., R. 3 W., Fairbanks Meridian. This prospect is on the ridge between Ready Bullion Creek and Willow Creek. It is at an elevation of about 1,880 feet about 0.6 mile south-southwest of the top of Ester Dome. The prospect is included in locality 5 of Cobb (1972 [MF 410]).

Geologic setting

Geologic description A mineralized zone near a fault plane contains auriferous quartz veins and pods of stibnite (Smith, 1913 [B 525]). (Chapin, 1914 [B 592-J, p. 321-355]) reported 100 feet of tunnel and crosscuts. The mineralized zone was explored by two shafts that trend N. 35 W.; dump materials consist of dark mica schist and very little quartz (Hill, 1933).
Geologic map unit	(-148.07043040891, 64.8665621198776)
Mineral deposit model	Schist-hosted gold-quartz vein

Production and reserves

Workings or exploration	Chapin (1914 [B 592-J, p. 321-355]) reported 100 feet of tunnel and crosscuts. Hill (1933) reported that by 1931 the mineralized zone was explored by two shafts oriented N. 35 W.
Indication of production	Undetermined

References

MRDS Number	A015252
References Brooks, A.H., 1916, Antimony deposits of Alaska: U.S. Geological Survey Bulletin 649, 67 p. 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. 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. 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. Smith, P.S., 1913, Lode mining near Fairbanks: U.S. Geological Survey Bulletin 542-F, p. 137-202.
Reporters	J.R. Guidetti Schaefer and C.J. Freeman (Avalon Development Corporation)
Last report date	7/31/2001