Prospect in Alaska, United States with commodity Copper

Geologic information

Identification information

Deposit ID 10094056
MRDS ID A012542
Record type Site
Current site name Noah

Geographic coordinates

Geographic coordinates: -143.41264, 63.1597 (WGS84)
Relative position Noah prospect is near the southwest corner of section 18, T. 15 N., R. 11 E., of the Copper River Meridian. It is location 21 of Singer and others (1976). It is located 4 miles northwest of the Glenn Highway and the Tok River, and about 7 miles west of Clearwater Camp. The location is accurate to within 2 to 3 miles.
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Geographic areas

Country State
United States Alaska


Commodity Importance
Copper Primary

Mineral occurrence model information

Model code 79
USGS model code 21a
Deposit model name Porphyry Cu-Mo
Mark3 model number 2

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Metamorphic Rock > Schist

Nearby scientific data

(1) -143.41264, 63.1597

Comments on the geologic information

  • Geologic Description = The Noah prospect is a copper prospect in Precambrian and/or Paleozoic quartz-feldspar-biotite gneiss (amphibolite grade) near a Mesozoic or Tertiary pluton (Foster, 1970; MacKevett and Holloway, 1977). No more information is available.
  • Age = If it is a porphyry-Cu deposit, it is likely to be from one of the three porphyry ages in eastern interior Alaska: 90 to 100 Ma, 70 Ma, or 55 Ma.

Economic information

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Mining district

District name Tok

Comments on the workings information

  • Workings / Exploration = Surface exploration has been done on the property.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A012542
USGS Alaska Resource Data File ARDF TC018

Bibliographic references

  • Deposit

    Foster, H.L., 1970, Reconnaissance geologic map of the Tanacross quadrangle, Alaska: U.S. Geological Survey Miscellaneous Geological Investigations Map I-593, 1 sheet, scale 1:250,000.

  • Deposit

    Singer, D.A., Csejtey, Bela, Jr., and Miller, R.J., 1978, Map and discussion of the metalliferous and selected nonmetalliferous mineral resources of the Talkeetna Mountains quadrangle, Alaska: U.S. Geological Survey Open-file Report 78-588-Q, 33 p., 1 plate, scale 1:250,000.

  • Deposit

    Cobb, E.H., and Eberlein, G.D., 1980, Summaries of data on and lists of references to metallic and selected nonmetallic mineral deposits in the Big Delta and Tanacross quadrangles, Alaska: U.S. Geological Survey Open-File Report 80-1086, 77 p.

  • Deposit

    MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous and selected non-metalliferous mineral deposits in the eastern part of southern Alaska: U.S. Geological Survey Open-File Report 77-169-A, 99 p., 1 sheet, scale 1:1,000,000.

Comments on the references

  • Primary Reference = MacKevett and Holloway, 1977

General comments

Subject category Comment text
Deposit Model Name = Possibly a Cu-porphyry deposit (Cox and Singer, 1986; model 21a)

Reporter information

Type Date Name Affiliation Comment
Reporter 13-APR-99 Cameron, C.E. Alaska Division of Geological and Geophysical Surveys