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Quemboe Bros.

Prospect in Alaska, United States with commodities Gold, Antimony
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Geologic information

Identification information

Deposit ID 10002951
MRDS ID A015446
Record type Site
Current site name Quemboe Bros.

Geographic coordinates

Geographic coordinates: -147.39185, 65.07357 (WGS84)
Relative position Cobb (1972, MF-413), loc. 44; SE1/4 sec. 20, T. 3 N., R. 2 E., of the Fairbanks Meridian. The prospect is on the ridge between Chatham Creek and Wolf Creek, at an elevation of 2,125 feet. Accuracy is within 1,000 feet.
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary
Antimony Secondary

Materials information

Materials Type of material
Arsenopyrite Ore
Gold Ore
Pyrite Ore
Stibnite Ore

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Schist

Nearby scientific data

(1) -147.39185, 65.07357
ListMap

Comments on the geologic information

  • Geologic Description = Gold occurs in a shear zone oriented N 70 W, dipping 50 S; it is composed of quartz stringers in a soft schist (Times Publishing Company, 1912; Brooks, 1916; B 649). The dip of the shear flattens with depth and early quartz is cemented by later stibnite, pyrite and arsenopyrite (Smith, 1913; B 525, p. 171). The hanging wall contact is a fault plane in the Quemboe shaft. Samples collected by the owners in 1912 assayed $22.50 to $32 of gold per ton, or about 1 to 1.5 ounces of gold per ton (Smith, 1913; B 525). An unspecified quantity of ore which was custom milled in Fairbanks averaged $35 of gold per ton (1.7 ounces of gold per ton) (Times Publishing Company, 1912). The prospect was examined in 1942 as a possible source of antimony, however, the low grade and restricted distribution of antimony did not warrant additional exploration (Killeen and Mertie, 1951). No other published or private references to the Quemboe prospect are known.

Economic information

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Fairbanks

Comments on the production information

  • Production Notes = An unspecified quantity of ore which was custom milled in Fairbanks averaged $35 per ton in gold (1.7 ounces of gold per ton) (Times Publishing Company, 1912).

Comments on the workings information

  • Workings / Exploration = In 1913, the development work consisted of a 60 foot shaft with a short drift to the east and another to the west (Smith, 1913; B 525, p. 171).

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A015446
USGS Alaska Resource Data File ARDF LG144

Bibliographic references

  • Deposit

    Times Publishing Company, 1912, Tanana Magazine, Quartz Edition: Fairbanks, Alaska 76 p.

  • Deposit

    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.

  • Deposit

    Smith, P.S., 1913, Lode mining near Fairbanks: U.S. Geological Survey Bulletin 542-F, p. 137-202.

  • Deposit

    Brooks, A.H., 1916, Antimony deposits of Alaska: U.S. Geological Survey Bulletin 649, 67 p.

  • Deposit

    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.

  • Deposit

    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.

  • Deposit

    Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Circle quadrangle, Alaska: U.S. Geological Survey Open-File Report 76-633, 72 p.

  • Deposit

    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.)

  • Deposit

    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.

  • Deposit

    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.

Comments on the references

  • Primary Reference = Smith, 1913 (B 525)

General comments

Subject category Comment text
Deposit Model Name = Gold-quartz vein.

Reporter information

Type Date Name Affiliation Comment
Reporter 04-MAY-1999 C.J. Freeman Avalon Development Corporation
Reporter 04-MAY-1999 J.R. Guidetti Schaefer Avalon Development Corporation