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Unnamed (head of Sheep Creek)=

Prospect in Alaska, United States with commodity Copper
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Geologic information

Identification information

Deposit ID 10001063
MRDS ID A011743
Record type Site
Current site name Unnamed (head of Sheep Creek)=
Alternate or previous names Unnamed

Geographic coordinates

Geographic coordinates: -141.66635, 61.67359 (WGS84)
Relative position 3,400 ft west of headwaters of Sheep Creek, a tributary of White River. Best location: MacKevett, 1976, loc. 148. Accurate within radius of 1,000 feet.
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary

Comments on the commodity information

  • Ore Material = Copper (native)

Materials information

Materials Type of material
Chalcocite Ore
Cuprite Ore
Malachite Ore
Copper Ore

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
  • Host or associated Host
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone

Nearby scientific data

(1) -141.66635, 61.67359
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Comments on the geologic information

  • Geologic Description = Native copper, cuprite, chalcocite and malachite in amygdules in Triassic Nikolai Greenstone.
  • Age = Triassic

Economic information

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Chisana

Comments on the workings information

  • Workings / Exploration = Type of workings: underground. Caved adit on property.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A011743
USGS Alaska Resource Data File ARDF MC105

Bibliographic references

  • Deposit

    Knaebel, Jeff, 1970, Geochemical survey and geological reconnaissance of the White River area, south-central Alaska: Alaska Division of Mines and Minerals Geochemical Report 21, 60 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

    Capps, S.R., 1916, The Chisana-White River district, Alaska: U.S. Geological Survey Bulletin 630, 130 p., 2 sheets, scale 1:250,000.

Comments on the references

  • Primary Reference = Capps, 1916

General comments

Subject category Comment text
Deposit Model Name = Basaltic Cu

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