Unnamed Prospect (ARDF - FB035; head of Eva Creek), Fairbanks District, Fairbanks North Star Borough, Alaska, USA
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Geology: A 60-foot shaft was sunk on a quartz vein carrying considerable stibnite and disseminated sulfides (Smith, 1913 [B 525, p. 208]). The quartz is fine-grained, granular, and has a grayish color; visible gold was reported to be fairly common. Bedrock in the area was mapped as biotite schist of the Muskox sequence by Newberry and others (1996). Thomas (1947) reported that approximately 1,500 feet of surface trenching has been done on the property but that no veins or mineralized zones were discovered. They did discover four flat-lying faults in mica schist. These faults were filled with white talc gouge. All underground workings on the property are caved and inaccessible.
Workings: A 60-foot shaft was sunk on a quartz vein (Smith, 1913 [B 525, p. 208]).
Production: About 1,000 tons of gold ore was mined from this property (Thomas, 1947).
Commodities (Major) - Au
Development Status: Undetermined
Deposit Model: Schist-hosted gold-quartz vein
1 entry listed. 1 valid mineral.
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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. Thomas, B.I., 1947, Operations of Alaskan Mining Company (Ester Dome): Alaska Territorial Department of Mines Prospect Evaluation 58-5, 4 p.