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Unnamed (upper Strelna Creek)

Prospect in Alaska, United States with commodity Copper
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Geologic information

Identification information

Deposit ID 10001062
MRDS ID A011742
Record type Site
Current site name Unnamed (upper Strelna Creek)
Alternate or previous names Strelna Creek

Geographic coordinates

Geographic coordinates: -143.98447, 61.62076 (WGS84)
Relative position Along western bank of Strelna Creek, 1.3 mi downstream from headwaters. MacKevett and others, 1978, loc. 19. Accurate within radius of 100 feet.
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary

Materials information

Materials Type of material
Malachite Ore
Pyrite Ore
Calcite Gangue

Alteration

  • (Local) Oxidation of Cu minerals

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) -143.98447, 61.62076
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Comments on the geologic information

  • Geologic Description = 2-m-wide altered fault zone in Triassic Nikolai Greenstone, near contact with Triassic Chitistone Limestone, contains sporadically distributed pyrite-calcite veins exhibiting minor malachite staining.

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 A011742
USGS Alaska Resource Data File ARDF MC046

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

    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 Maddren, 1909

General comments

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

Reporter information

Type Date Name Affiliation Comment
Reporter 15-SEP-1997 Leonard, K.R. U.S. Geological Survey
Reporter 15-SEP-1997 Elliott, R.L. U.S. Geological Survey
Reporter 15-SEP-1997 Richter, D.H. U.S. Geological Survey