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Unnamed (west of lower Nabesna Glacier)

Occurrence in Alaska, United States with commodities Gold, Cobalt
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Geologic information

Identification information

Deposit ID 10000752
MRDS ID A011393
Record type Site
Current site name Unnamed (west of lower Nabesna Glacier)
Alternate or previous names Unnamed

Geographic coordinates

Geographic coordinates: -142.92365, 62.14858 (WGS84)
Relative position Best location: Richter, 1973, USGS I-789, loc. 10. Accurate within 500 ft radius
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary
Cobalt Primary

Materials information

Materials Type of material
Cobaltite Ore
Gold Ore
Calcite Gangue

Nearby scientific data

(1) -142.92365, 62.14858
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Comments on the geologic information

  • Geologic Description = 10 to 20 cm calcite vein containing gold and cobaltite in Triassic Nikolai Greenstone near Tertiary porphyry intrusion.

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Chisana

Comments on the workings information

  • Workings / Exploration = Up to 10 oz/ton Au reported (USGS MF-655K). Type of workings: none

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A011393
USGS Alaska Resource Data File ARDF NB041

Bibliographic references

  • Deposit

    Richter, D.H., 1973, Reconnaissance geological map of the Nabesna A-1 quadrangle, Alaska: U.S. Geological Survey Miscellaneous Investigations Series Map 1-789, scale 1:63,360.

  • Deposit

    Richter, D.H., Singer, D.A., and Cox, D.P., 1975, Mineral resources map of the Nabesna quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-655-K, scale 1:250,000.

Comments on the references

  • Primary Reference = Richter, 1973, USGS I-789

General comments

Subject category Comment text
Deposit Model Name = Lode: vein
Deposit Other Comments = Only known gold-bearing vein in district that may be economically significant

Reporter information

Type Date Name Affiliation Comment
Reporter 06-FEB-1997 Leonard, K.R. U.S. Geological Survey
Reporter 06-FEB-1997 Elliott, R.L. U.S. Geological Survey
Reporter 06-FEB-1997 Richter, D.H. U.S. Geological Survey