Imelyak River

Occurrence in Alaska, United States with commodities Barium-Barite, Copper, Lead, Zinc

Geologic information

Identification information

Deposit ID 10001195
MRDS ID A011907
Record type Site
Current site name Imelyak River

Geographic coordinates

Geographic coordinates: -157.22355, 67.63955 (WGS84)
Relative position Located near the head of the Imelyak River at approximately 2000 ft. (600 m) elevation in T. 26 N., R. 7 E., Kateel River Meridian. Shown as locality 75 in Mayfield and Grybeck (1978) and accurate to within 2000 ft. (600 m).???
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Geographic areas

Country State
United States Alaska


Commodity Importance
Barium-Barite Primary
Copper Primary
Lead Primary
Zinc Primary

Materials information

Materials Type of material
Azurite Ore
Barite Ore
Galena Ore
Malachite Ore
Sphalerite Ore

Mineral occurrence model information

Model code 72
USGS model code 19a
Deposit model name Polymetallic replacement
Mark3 model number 47

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Nearby scientific data

(1) -157.22355, 67.63955

Comments on the geologic information

  • Geologic Description = Sphalerite and galena in shear zone less than 3 ft. (1 m) wide in limestone; and malachite, azurite, and barite vein less than 6 ft. (2 m) wide cutting limestone. Occurrence may be related to other sedimentary rock-hosted mineral occurrences in the Brooks Range; see for example Schmidt (1997, p.35-65) and Schmidt and Werdon (1993, p. 143).

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Both metallic and non-metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Noatak

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A011907
USGS Alaska Resource Data File ARDF AR059

Bibliographic references

  • Deposit

    Mayfield, C.F. and Grybeck, D., 1978, Mineral occurrences and resource map of the Ambler river quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-120I, 1 sheet, scale 1:250,000.

  • Deposit

    Schmidt, J.M., 1997, Shale-hosted Zn-Pb-Ag and barite deposits of Alaska, in Goldfarb, R.J., and Miller, L.D., eds., Mineral Deposits of Alaska, 1997: Economic Geology Monograph 9, p. 35-65.

  • Deposit

    Schmidt, J.M., and Werdon, M.B., 1993, Clastic-hosted stratiform, vein/breccia and disseminated Zn-Pb-Ag deposits of the northwestern Brooks Range, Alaska; are they different expersions of dewatering of the same source basin? [abs.]: Geological Society of America, Abstracts with Programs, v. 24, p. 143.

Comments on the references

  • Primary Reference = Mayfield and Grybeck, 1978

General comments

Subject category Comment text
Deposit Model Name = Polymetallic vein? (see Schmidt and Werdon, 1993, p. 143)
Deposit Other Comments = Located on land within the Noatak National Preserve.

Reporter information

Type Date Name Affiliation Comment
Reporter 06-MAY-1997 K.R. Leonard U.S. Geological Survey
Reporter 06-MAY-1997 R.L. Elliott U.S. Geological Survey
Reporter 06-MAY-1997 J.M. Schmidt U.S. Geological Survey
Reporter 06-MAY-1997 S.W. Nelson U.S. Geological Survey