Unnamed (east of lower Lime Creek)

Prospect in Alaska, United States with commodity Copper

Geologic information

Identification information

Deposit ID 10001072
MRDS ID A011754
Record type Site
Current site name Unnamed (east of lower Lime Creek)
Alternate or previous names Lime Creek
Related records 10282762

Geographic coordinates

Geographic coordinates: -143.93364, 61.6916 (WGS84)
Relative position On north bank of Lime Creek, 1.7 mi upstream from confluence of Lime Creek with Kotsina River. Best location: MacKevett and others, 1978, loc. 13. Accurate within radius of 100 feet.
(click for info)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary

Materials information

Materials Type of material
Bornite Ore
Chalcopyrite Ore
Calcite Gangue
Epidote Gangue
Quartz Gangue

Mineral occurrence model information

Model code 87
USGS model code 23
BC deposit profile D03
Deposit model name Basaltic Cu (BC name is Volcanic redbed Cu)
Mark3 model number 118

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

Nearby scientific data

(1) -143.93364, 61.6916

Comments on the geologic information

  • Geologic Description = Bornite and minor chalcopyrite in small lenses, disseminations, and quartz-calcite veins in Triassic Nikolai Greenstone near contact with Triassic Chitistone Limestone.

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 = Type of workings: underground. Explored by two short adits.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A011754
USGS Alaska Resource Data File ARDF MC035

Bibliographic references

  • Deposit

    Mendenhall, W.C., 1905, Geology of the central Copper River region, Alaska: U.S. Geological Survey Professional Paper 41, 133 p.

  • 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

    Moffit, F.H., and Mertie, J.B., Jr., 1923, The Kotsina-Kuskulana district, Alaska: U.S. Geological Survey Bulletin 745, 149 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

    MacKevett, E.M., Jr., Smith, J.G., Jones, D.L., and Winkler, G.R., 1978, Geologic map of the McCarthy C-8 quadrangle, Alaska: U.S. Geological Survey Geologic Quadrangle Map GQ-1418, scale 1:63,360.

  • Deposit

    MacKevett, E.M., Jr., Smith, J.G., Jones, D.L., and Winkler, G.R., 1978, Geologic map of the McCarthy C-8 quadrangle, Alaska: U.S. Geological Survey Geologic Quadrangle Map GQ-1418, 1 sheet, scale 1:63,360.

Comments on the references

  • Primary Reference = Moffit and Mertie, 1923

General comments

Subject category Comment text
Deposit Model Name = Basaltic Cu
Deposit Other Comments = See also: Warner Prospect (MC028)

Reporter information

Type Date Name Affiliation Comment
Reporter 22-SEP-1997 Leonard, K.R. U.S. Geological Survey
Reporter 22-SEP-1997 Elliott, R.L. U.S. Geological Survey
Reporter 22-SEP-1997 Richter, D.H. U.S. Geological Survey