1. Mineral Resources
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  3. Alaska Resource Data File (ARDF)

Unnamed (west of Tarr Inlet)

Occurrence, Inactive

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Commodities and mineralogy

Main commodities Au
Ore minerals pyrite

Geographic location

Quadrangle map, 1:250,000-scale MF
Quadrangle map, 1:63,360-scale D-4
Latitude 58.997
Longitude -137.015
Nearby scientific data Find additional scientific data near this location
Location and accuracy The occurrence is at an elevation of 700 feet about 4.5 miles from the mouth of Tarr Inlet in the NE 1/4 NE 1/4 section 23, T. 33 S., R. 50 E., of the Copper River Meridian. The occurrence is about 0.75 miles south of the Tarr Inlet prospect of Kimball and others (1978; fig. C41), which is on the Skagway A-6 quadrangle. The occurrence is located within 0.2 mile.

Geologic setting

Geologic description

The area is underlain predominantly by foliated granitic rock of Cretaceous age (Brew and others, 1978). A sample of a 2-foot by 6-foot sulfide pod in granitic host contained 0.10 ounce per ton gold (3.5 ppm) (Kimball and others, 1978, location 4, fig. C41, table C36).
Geologic map unit (-137.016892161068, 58.996593146675)
Age of mineralization Tertiary.

Production and reserves

Workings or exploration Surface exposure only; a grab sample of a 2-foot by 6-foot sulfide rich pod assayed 3.5 ppm in gold; no other element was anomalous (Kimball and others, 1978).
Indication of production None

Additional comments

The site is in Glacier Bay National Park and Preserve. The occurrence is south of the Tarr Inlet Knob prospect of Kimball and others (1978, fig. C41) which is in the Skagway A-6 quadrangle.

References

MRDS Number 10307813

References

Brew, D.A., Johnson, B.R., Grybeck, D., Griscom, A., Barnes, D.F., Kimball, A.L., Still, J.C., and Rataj, J.L., 1978, Mineral resources of the Glacier Bay National Monument Wilderness Study Area, Alaska: U.S. Geological Survey Open-File Report 78-494, 670 p., 7 sheets.
Kimball, A.L., Still, J.C., and Rataj, J.L., 1978, Mineral resources, in Brew, D. A., and others, Mineral resources of the Glacier Bay National Monument wilderness study area, Alaska: U.S. Geological Survey Open-File Report 78-494, p. C1-C375.
Reporters C.C. Hawley (Hawley Resource Group)
Last report date 4/6/1999