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Killarney

Past Producer in Alaska, United States with commodity Gold
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Geologic information

Identification information

Deposit ID 10097549
MRDS ID A015264
Record type Site
Current site name Killarney

Geographic coordinates

Geographic coordinates: -148.00294, 64.8716 (WGS84)
Relative position The Killarney mine is located in the SE1/4 NW1/4 sec. 32, T. 1 N., R. 2 W., Fairbanks Meridian. This mine is at the head of Saint Patrick Creek at an elevation of about 1,340 feet; it is about 1.8 miles east-southeast of the top of Ester Dome. The mine is included in locality 14 of Cobb (1972 [MF 410]).
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore

Alteration

  • (Local) The vein quartz is oxidized and iron-stained (Stewart, 1933, p. 141).

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Schist

Nearby scientific data

(1) -148.00294, 64.8716
ListMap

Comments on the geologic information

  • Geologic Description = About 180 tons of gold was produced from the Killarney mine, which consists of fractured and re-cemented gold-bearing quartz veins in micaceous schist (Chapman and Foster, 1969, p. D18; Stewart, 1933, p. 140-141). The veins are oriented N. 5 E., 75 W. and are intersected at intervals by faults that trend at a shallow angle to the strike and dip of the veins (Stewart, 1933, p. 141). Two types of quartz were observed in the vein (Stewart, 1933, p. 141). One type is low-grade ore, has a sugary texture, and is unfractured. The other is somewhat translucent, grayish quartz that has been fractured into segments from one-quarter inch to one-half inch in length that were was subsequently recemented. In the second type of quartz, free gold is visible in particles as large as a pinhead. Workings consisted of a 94-foot shaft with three drifts (Stewart, 1933, p. 140-141).

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Fairbanks

Comments on the production information

  • Production Notes = About 180 tons of ore was mined from the Killarney workings during 1932; the ore was processed at the Saint (St.) Paul mill (Stewart, 1933, p. 141).

Comments on the workings information

  • Workings / Exploration = In January of 1932, a vertical shaft was started that eventually reached a depth of 94 feet by 1933 (Stewart, 1933, p. 140). At the 90-foot level, drifts were extended both north and south along the vein. The north drift was driven a distance of about 60 feet from the shaft where it encountered a fault. The south drift was driven for about 165 feet from the shaft. Another drift at the 30-foot level was driven northward toward the fault (Stewart, 1933, p. 140-141).

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A015264
USGS Alaska Resource Data File ARDF FB043

Bibliographic references

  • Deposit

    Stewart, B.D., 1933, Mining investigations and mine inspection in Alaska, Biennium ending March 31, 1933: Alaska Territorial Department of Mines Annual Report 1933B, 196 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., 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.

  • Deposit

    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.

Comments on the references

  • Primary Reference = Stewart, 1933

General comments

Subject category Comment text
Deposit Model Name = Schist-hosted gold-quartz vein

Reporter information

Type Date Name Affiliation Comment
Reporter 31-JUL-2001 J.R. Guidetti Schaefer Avalon Development Corporation
Reporter 31-JUL-2001 C.J. Freeman Avalon Development Corporation