Occurrence in Alaska, United States with commodity Copper

Geologic information

Identification information

Deposit ID 10308600
Record type Site
Current site name Unnamed

Geographic coordinates

Geographic coordinates: -147.44276, 63.09362 (WGS84)
Relative position This occurrence is at an elevation of about 3,650 feet, 0.7 mile due east of south end of the east lake at Susitna Lodge. The map site is in the SW1/4 of sec. 18, T. 21 S., R. 2 E., of the Fairbanks Meridian. The location is accurate to within 500 feet.
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Geographic areas

Country State
United States Alaska


Commodity Importance
Copper Primary

Materials information

Materials Type of material
Bornite Ore
Chalcocite Ore
Quartz Gangue

Nearby scientific data

(1) -147.44276, 63.09362

Comments on the geologic information

  • Geologic Description = The area of this occurrence is underlain by the Middle or Upper Triassic Nikolai Greenstone, a thick sequence of subaerial and submarine basalt flows and minor interbedded volcaniclastic sedimentary rocks, aquagene and epiclastic tuff, breccia, argillite, and radiolarian chert (Nokleberg and others, 1992). This occurrence was described by Glavinovich (1976) as follows: 'The mineralized sample was found in talus. The mineralization consists of malachite, minor chalcocite and bornite occurring in small quartz pods and stringers in an amygdaloidal andesite.'
  • Age = Triassic or younger.

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Valdez Creek

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Alaska Resource Data File ARDF HE182

Bibliographic references

  • Deposit

    Glavinovich, P.S., 1967, Trace element copper distribution and areal geology in a portion of the Clearwater Mountains, Alaska: University of Alaska Minerals Industry Research Laboratory, Report 10, 55 p.

  • Deposit

    Nokleberg, W.J., and others, 1992, Circum-North Pacific terrane map, in Tracy, K.V., Anker, E. M., Ryan, C., Hoffman, V. , eds., International conference on Arctic margins, p. 44.

Comments on the references

  • Primary Reference = Glavinovich, 1967

General comments

Subject category Comment text
Deposit Model Name = Hydrothermally altered shear zone.

Reporter information

Type Date Name Affiliation Comment
Reporter 07-APR-2000 D.L. Stevens Stevens Exploration Management Corporation