Unnamed (upper Strelna Creek)

Prospect in Alaska, United States with commodity Copper

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

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