Unnamed

Occurrence in Alaska, United States with commodity Copper

Geologic information

Identification information

Deposit ID 10000245
MRDS ID A010284
Record type Site
Current site name Unnamed

Geographic coordinates

Geographic coordinates: -131.74792, 56.22169 (WGS84)
Relative position This unnamed mineral occurrence (Elliott and Koch, 1981, p. 7, loc. no. 5) is at sealevel on the north shore of Bradfield Canal, in Section 24, about 2.6 miles northwest of the mouth of Tom Creek. The location is accurate to within about 500 feet.
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary

Materials information

Materials Type of material
Chalcopyrite Ore

Alteration

  • (Local) Schist hostrock is ironstained

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Schist

Nearby scientific data

(1) -131.74792, 56.22169

Comments on the geologic information

  • Geologic Description = The country rocks in the general area of this occurrence are Mesozoic or Paleozoic pelitic schist and paragneiss and subordinate amphibolite and marble (Koch, 1996, 1997). The occurrence consists of rusty-weathering quartzo-feldspathic schist containing disseminated chalcopyrite.

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Petersburg

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A010284
USGS Alaska Resource Data File ARDF BC005

Bibliographic references

  • Deposit

    Elliott, R.L., and Koch, R.D., 1981, Mines, prospects, and selected metalliferous mineral occurrences in the Bradfield Canal quadrangle, Alaska: U.S. Geological Survey Open-File Report 81-728-B, 23 p., 1 sheet, scales 1:250,000 and 1:63,360.

  • Deposit

    Koch, R.D., 1996, Reconnaissance geologic map of the Bradfield Canal quadrangle, southeastern Alaska: U.S. Geological Survey Open-File Report 81-728-A, 35 p., 1 sheet, scale 1:250,000.

  • Deposit

    Koch, R.D., 1997, Metalliferous mineral resource potential in the Bradfield Canal quadrangle, southeastern Alaska: U.S. Geological Survey Open-File Report 97-271, 57 p., 1 sheet, scale 1:250,000.

Comments on the references

  • Primary Reference = Elliott and Koch, 1981

Reporter information

Type Date Name Affiliation Comment
Reporter 17-MAY-1998 H. C. Berg U.S. Geological Survey