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Unnamed (east of Bearpaw Mountain)

Prospect in Alaska, United States with commodities Copper, Zinc
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Nearby scientific data
  7. Economic information about the deposit and operations
  8. Mining district
  9. Links to other databases
  10. Bibliographic references
  11. General comments
  12. Reporter information

Geologic information

Identification information

Deposit ID 10307709
Record type Site
Current site name Unnamed (east of Bearpaw Mountain)

Geographic coordinates

Geographic coordinates: -150.82694, 64.08558 (WGS84)
Relative position 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.

Site location context

Political divisions (FIPS codes)

Denali(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Kantishna River A-2(quadrangle 1:63,360 scale)

Kantishna River SE(quadrangle 1:100,000 scale)

Kantishna River(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary
Zinc Critical Primary

Nearby scientific data

(1) -150.82694, 64.08558
ListMap

Economic information

Comments on the geologic information

  • 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.
  • Age = Brecciation is younger than Silurian to Ordovician metasedimentary rocks, probably related to Cretaceous to Tertiary plutonism.

Economic information about the deposit and operations

Development status Prospect

Comments on exploration

  • Status = Inactive

Mining district

District name Kantishna

Comments on the production information

  • Production Notes = There are no indications of production.

Comments on the workings information

  • Workings / Exploration = A regional stream-sediment sampling and mapping program in 1975-76 identified geochemical anomalies (Bond, 1985).

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Bond, 1985

General comments

Subject category Comment text
Deposit Model Name = Shear-hosted brecciation.
Deposit Other Comments = These prospects are located on land selected by or conveyed to Doyon, Limited. For more information, contact Doyon, Limited.

Reporter information

Type Date Name Affiliation Comment
Reporter 08-NOV-99 Cameron S. Rombach Alaska Division of Geological and Geophysical Surveys

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site

Authoritative Alaska resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.