Unnamed (east of Bearpaw Mountain)

Prospects, Inactive

Commodities and mineralogy

Main commodities Cu; Zn

Geographic location

Quadrangle map, 1:250,000-scale KH
Quadrangle map, 1:63,360-scale A-2
Latitude 64.086
Longitude -150.824
Nearby scientific data Find additional scientific data near this location
Location and accuracy These two unnamed prospects cover about 1 square mile and are situated on the northwest bank of the Kantishna River about 5 miles east of Bearpaw Mountain (KH001). The approximate center of the prospect area is in SW1/4SE1/4 section 35, T. 9 S., R. 17 W. The Kantishna River provides access to the prospects, and there is an airstrip at Lake Minchumina approximately 40 miles southwest. The unnamed prospects are located on land selected by or conveyed to Doyon, Limited.

Geologic setting

Geologic description

The bedrock in the area is Ordovician to Silurian siltstone, mudstone, argillite, grit, quartzite, and limestone, and minor amounts of chert and schist (Chapman and Yeend, 1981). Regionally, the area contains a system of northeast-trending strike-slip and related conjugate faults associated with Cretaceous to Tertiary plutonic rocks and coeval or younger volcanic rocks (Clautice and others, 1993).
Black shale crops out on the northwest bank of the Kantishna River. At the prospect sites, the black shale contains brecciated zones along low-angle faults. Bond (1985) reported that these brecciated zones contain weak Zn-Cu mineralization.
A regional stream-sediment sampling and mapping program in 1975-76 identified geochemical anomalies (Bond, 1985). There are no indications of production.
Geologic map unit (-150.826352879383, 64.0854947599381)
Mineral deposit model Shear-hosted brecciation.
Age of mineralization Brecciation is younger than Silurian to Ordovician metasedimentary rocks, probably related to Cretaceous to Tertiary plutonism.

Production and reserves

Workings or exploration A regional stream-sediment sampling and mapping program in 1975-76 identified geochemical anomalies (Bond, 1985).
Indication of production None
Production notes There are no indications of production.

Additional comments

These prospects are located on land selected by or conveyed to Doyon, Limited. For more information, contact Doyon, Limited.

References

MRDS Number 10307709

References

Bond, James, 1985, Geologic field examinations in Doyon, Limited, regional selection block 9: Doyon Limited Report 85-19, 179 p. (Report held by Doyon, Limited, Fairbanks, Alaska).
Reporters Cameron S. Rombach (ADGGS)
Last report date 11/8/1999