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Tyndall and Finn

Prospect, Inactive

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Commodities and mineralogy

Main commodities Au
Ore minerals gold

Geographic location

Quadrangle map, 1:250,000-scale FB
Quadrangle map, 1:63,360-scale D-3
Latitude 64.853
Longitude -148.028
Nearby scientific data Find additional scientific data near this location
Location and accuracy The Tyndall and Finn prospect is located in the SE1/4SW1/4 sec. 6, T. 1 S., R. 2 W., Fairbanks Meridian. This prospect is east of Ready Bullion Creek at an elevation of about 800 feet; it is approximately 0.5 mile northwest of the town of Ester. The prospect is included in locality 11 of Cobb (1972 [MF 410]).

Geologic setting

Geologic description

Prior to WW I, several lode claims were explored by many openings, including a 60-foot adit and a 50-foot adit (Smith, 1913 [B 525, p. 208]). A small, well-defined quartz vein was exposed in one adit, where all the gold appeared to be contained within the vein. The bedrock at this prospect is Fairbanks Schist, which is composed of quartz-muscovite schist, quartzite, and chlorite-quartz schist (Newberry and others, 1996).
Geologic map unit (-148.030428286132, 64.8525630036616)
Mineral deposit model Schist-hosted gold-quartz vein

Production and reserves

Workings or exploration Several lode claims were explored by many openings, including a 60-foot adit and a 50-foot adit (Smith, 1913 [B 525, p. 208]).
Indication of production None
Production notes No record of production.

References

MRDS Number A015260

References

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.
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.
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