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Cleopatra

Prospect in Alaska, United States with commodity Copper
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Mineral occurrence model information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Economic information about the deposit and operations
  11. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10308486
Record type Site
Current site name Cleopatra

Geographic coordinates

Geographic coordinates: -147.6028, 63.47963 (WGS84)
Relative position The Cleopatra prospect is at an elevation of about 4,500 feet on the north wall of an east-flowing, unnamed tributary to the West Fork Glacier. It is about 1.6 miles south-southwest of VABM 5,756 (Fork), in the NW1/4 of sec. 5, T. 17 S., R. 1 E., of the Fairbanks Meridian. The location is accurate to within 0.5 mile. This is location 25 of Cox and others (1989).

Site location context

Political divisions (FIPS codes)

Southeast Fairbanks(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Healy B-2(quadrangle 1:63,360 scale)

Mount Hayes SW(quadrangle 1:100,000 scale)

Healy(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Susitna River(hydrologic unit)

Susitna River(hydrologic accounting unit)

South Central Alaska(hydrologic subregion)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Pyrrhotite Ore

Mineral occurrence model information

Model code 91
USGS model code 24b
Deposit model name Massive sulfide, Besshi (Japanese deposits)
Mark3 model number 30

Host and associated rocks

  • Host or associated Host
    Rock type

Nearby scientific data

(1) -147.6028, 63.47963
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = The country rocks in the area of the Cleopatra prospect include Upper Triassic, intensely deformed and metamorphosed, interbedded shale, argillite, sandstone, siltstone, and argillaceous limestone; and dikes, sills, and small plugs of altered diabase and gabbro (Wilson and others, 1998). These rocks in turn are intruded by Upper Cretaceous(?) and Lower Tertiary granite plutons. The deposit consists of stratabound disseminated chalcopyrite and pyrrhotite in the metasedimentary rocks.
  • Age = The disseminated sulfides are probably syngenetic with their Late Triassic host rocks.

Economic information about the deposit and operations

Development status Prospect

Comments on exploration

  • Status = Inactive

Comments on the workings information

  • Workings / Exploration = Rocks are stream-sediment sampling, ground EM and magnetic geophysical surveys were conducted in the mid-1970s (unpublished report for the New Alaska Syndicate, 1977).

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Cox and others, 1989

General comments

Subject category Comment text
Deposit Model Name = Besshi massive sulfide (Cox and Singer, 1986; model 24b)

Reporter information

Type Date Name Affiliation Comment
Reporter 07-APR-2000 N. Van Wyck (Stevens Exploration Management Corporation) Stevens Exploration Management Corporation

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site

Authoritative Alaska resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.