Prospect in Alaska, United States with commodity Copper

Geologic information

Identification information

Deposit ID 10001044
MRDS ID A011722
Record type Site
Current site name Lakina
Related records 10185394

Geographic coordinates

Geographic coordinates: -143.39862, 61.55772 (WGS84)
Relative position Near toe of Lakina Glacier. Best location: Winkler and MacKevett, 1981. Accurate within a radius of 1 mile.
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Geographic areas

Country State
United States Alaska


Commodity Importance
Copper Primary

Comments on the commodity information

  • Ore Material = Copper (native)

Materials information

Materials Type of material
Azurite Ore
Bornite Ore
Chalcocite Ore
Covellite Ore
Malachite Ore
Copper Ore

Host and associated rocks

  • Host or associated Associated
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone
    Rock unit name Nikolai Greenstone
    Rock description Nikolai Greenstone
    Stratigraphic age (youngest) Late Triassic
    Stratigraphic age (youngest) Late Triassic
  • Host or associated Host
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone

Nearby scientific data

(1) -143.39862, 61.55772

Comments on the geologic information

  • Geologic Description = Two shear zones, each less than 1 m thick, in Triassic Nikolai Greenstone contain chalcocite, bornite, covellite, malachite, azurite. Nearby brecciated flow top in Nikolai Greenstone contains native Cu.

Economic information

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Chistochina

Comments on the workings information

  • Workings / Exploration = Adit on two shear zones and surficial workings along brecciated flow top containing native Cu. Type of workings: surface and underground

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A011722
USGS Alaska Resource Data File ARDF MC071

Bibliographic references

  • Deposit

    Moffit, F.H., and Maddren, A.G., 1909, Mineral resources of the Kotsina-Chitina region, Alaska: U.S. Geological Survey Bulletin 374, 103 p.

  • Deposit

    Berg, H.C., and Cobb, E.H., 1967, Metalliferous Lode Deposits of Alaska. U.S. Geological Survey Bulletin 1246, 254 p.

  • 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.

  • Deposit

    Winkler, G.R., and MacKevett, E.M., Jr., 1981, Geologic map of the McCarthy C-7 quadrangle, Alaska: U.S. Geological Survey Geologic Quadrangle Map GQ-1533, scale 1:63,360.

  • Deposit

    Moffit, F.H., 1918, Mining in the lower Copper River basin: U.S. Geological Survey Bulletin 662-C, p. 155-182.

Comments on the references

  • Primary Reference = Moffit and Maddren, 1909

General comments

Subject category Comment text
Deposit Model Name = Lode: vein, shear zone, disseminated

Reporter information

Type Date Name Affiliation Comment
Reporter 31-JUL-1997 Leonard, K.R. U.S. Geological Survey
Reporter 31-JUL-1997 Elliott, R.L. U.S. Geological Survey
Reporter 31-JUL-1997 Richter, D.H. U.S. Geological Survey