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Unnamed

Occurrence in Alaska, United States with commodities Antimony, Gold, Tungsten
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Geologic information

Identification information

Deposit ID 10001022
MRDS ID A011695
Record type Site
Current site name Unnamed

Geographic coordinates

Geographic coordinates: -142.33357, 61.34274 (WGS84)
Relative position 1 mile northwest of headwaters of Eagle Creek. Best location: MacKevett and Smith, 1972. Accurate within radius of 100 feet.
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Antimony Primary
Gold Secondary
Tungsten Secondary

Materials information

Materials Type of material
Stibnite Ore
Calcite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Nizina Limestone
    Rock description Nizina Limestone
    Stratigraphic age (youngest) Late Triassic
    Stratigraphic age (youngest) Late Triassic

Nearby scientific data

(1) -142.33357, 61.34274
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Comments on the geologic information

  • Geologic Description = A series of stibnite-bearing quartz-calcite veins up to 25 cm thick in Triassic Nizina Limestone.

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Nizina

Comments on the workings information

  • Workings / Exploration = No workings. Grab samples assayed as much as: 1.2 ppm Au, 700 ppm As, >10,000 ppm Sb,and 7,000 ppm W (MacKevett, 1976).

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A011695
USGS Alaska Resource Data File ARDF MC170

Bibliographic references

  • Deposit

    MacKevett, E.M., Jr., and Smith, J.G., 1968, Distribution of gold, copper, and some other metals in the McCarthy B-4 and B-5 quadrangles, Alaska: U.S. Geological Survey Circular 604, 25 p.

  • Deposit

    MacKevett, E.M., Jr., 1970, Geology of the McCarthy B-4 quadrangle: U.S. Geological Survey Bulletin 1333, 31 p.

  • Deposit

    MacKevett, E.M., Jr., and Smith, J.G., 1972, Geologic map of the McCarthy B-4 quadrangle, Alaska: U.S. Geological Survey Geologic Quadrangle Map GQ-943, scale 1:63,360.

  • Deposit

    MacKevett, E.M., Jr., 1976, Mineral deposits and occurrences in the McCarthy quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-773-B, scale 1:250,000.

Comments on the references

  • Primary Reference = MacKevett and Smith, 1968

General comments

Subject category Comment text
Deposit Model Name = Lode: vein

Reporter information

Type Date Name Affiliation Comment
Reporter 07-NOV-1997 Leonard, K.R. U.S. Geological Survey
Reporter 07-NOV-1997 Elliott, R.L. U.S. Geological Survey
Reporter 07-NOV-1997 Richter, D.H. U.S. Geological Survey