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Unnamed (upper Peacock Creek)

Prospect in Alaska, United States with commodity Copper
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Geologic information

Identification information

Deposit ID 10093996
MRDS ID A011750
Record type Site
Current site name Unnamed (upper Peacock Creek)
Alternate or previous names Peacock Creek
Related records 10185470

Geographic coordinates

Geographic coordinates: -143.76642, 61.70355 (WGS84)
Relative position On ridges above headwaters of Peacock Creek drainage, a tributary of Kotsina River. Several old claims lie within 1 mile of this location. Best location: MacKevett and others, 1978, loc. 12. Accurate to within radius of 100 feet.
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary

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;Chitina Valley Batholith; Granodiorite
    Rock description Nikolai Greenstone;Chitina Valley Batholith; Granodiorite
    Stratigraphic age (youngest) Late Triassic
  • Host or associated Host
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone

Nearby scientific data

(1) -143.76642, 61.70355
ListMap

Comments on the geologic information

  • Geologic Description = Copper-bearing veins in Triassic Nikolai Greenstone which is cut by apophyses of Jurassic granodiorite.

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: surface

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A011750
USGS Alaska Resource Data File ARDF MC031

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

    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

Reporter information

Type Date Name Affiliation Comment
Reporter 19-SEP-1997 Leonard, K.R. U.S. Geological Survey
Reporter 19-SEP-1997 Elliott, R.L. U.S. Geological Survey
Reporter 19-SEP-1997 Richter, D.H. U.S. Geological Survey