Location: The Bunker Hill mine is located in the SW1/4SW1/4 sec. 14, T. 2 N., R. 1 W., Fairbanks Meridian. This mine is on the south side of Old Murphy Dome Road about 2.5 miles west of the Elliott Highway. The mine is location 23 of Cobb (1972 [MF 410]).
Geology: Eight tons of gold ore with an average grade of 1.625 ounces of gold per ton was milled from a gold-quartz vein at the Bunker Hill mine (Chapin, 1914 [B 592-J, p. 345]; Hill, 1933, p. 154). The vein is oriented N. 15 W., 70 E.; it has an average width of 12 inches at the surface, narrowing to 2 inches at a depth of 50 feet (Hill, 1933, p. 154). A grab sample of ore from the dump assayed $24.06 in gold per ton (1.164 ounces of gold per ton) (Hill, 1933, p. 154). Material on the dump consists of mica schist from the hanging wall and blocky quartz-mica schist from the footwall (Hill, 1933, p. 154). Bedrock in the area is Fairbanks Schist, that consists of quartz-muscovite schist, quartzite, and chlorite-quartz schist (Newberry and others, 1996).
Workings: The Bunker Hill mine consists of a 102-foot-deep shaft with short drifts on the 25-foot and 60-foot levels (Hill, 1933, p. 154).
Production: Eight tons of gold ore with an average grade of 1.625 ounces of gold per ton were milled from a gold-quartz vein at the mine (Chapin, 1914 [B 592-J, p. 345]; Hill, 1933, p. 154).

Commodities (Major) - Au
Development Status: Yes; small
Deposit Model: Schist-hosted gold-quartz vein

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.

ⓘ Gold

Mineral List

ⓘ Native Gold

1 valid mineral.

Detailed Mineral List:

ⓘ Native Gold

Formula: Au

References:

(2008) Alaska Resource Data File (ARDF) Open-File Report 2008-1225. US Geological Survey

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘ	Native Gold	1.AA.05	Au

List of minerals for each chemical element

Au	Gold
Au	ⓘ Native Gold	Au

Other Databases

Link to USGS - Alaska:	FB082

Other Regions, Features and Areas containing this locality

North AmericaContinent

North America PlateTectonic Plate

North America PlatformPassive Margin
Yukon-Tanana lower DomainDomain

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References

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.

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