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  3. Mineral Resource Data System (MRDS)

Threeman Prospect

Occurrence in Alaska, United States with commodities Copper, Silver, Zinc
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mineral rights holdings
  12. Land status
  13. Links to other databases
  14. Bibliographic references
  15. Reporter information

Geologic information

Identification information

Deposit ID 10185605
MAS/MILS ID 0020960121
Record type Site
Current site name Threeman Prospect

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -146.57474, 60.87819 (WGS84)
Elevation 640
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Valdez-Cordova(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Cordova D-7(quadrangle 1:63,360 scale)

Cordova NW(quadrangle 1:100,000 scale)

Cordova(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Eastern Prince William Sound(hydrologic unit)

Prince William Sound(hydrologic accounting unit)

South Central Alaska(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Chugach National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State
United States Alaska

Public Land Survey System information

Meridian Township Range Section Fraction State
Copper River 011 S 008 W 36 NENWNW Alaska

Commodities

Commodity Importance
Copper Primary
Silver Tertiary
Zinc Critical Tertiary

Materials information

Materials Type of material
Chalcocite Unknown
Chalcopyrite Unknown
Iron Unknown
Pyrrhotite Unknown

Nearby scientific data

Main Entrance (1) -146.57474, 60.87819
ListMap

Economic information

Ore body information

  • Strike N60W
    Dip 75N
    Width 3M
    Field Value
    Type of Orebody #1 SHEAR ZONE
    Shape of Orebody #1 LENTICULAR
    Type of Orebody #2 REPLACEMENT
    Shape of Orebody #2 TABULAR
    Type of Orebody #3 DISSEMINATED
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control FAULTING
    Secondary Ore Control FOLDING
    Degree of Wallrock Alter. UNKNOWN
    Type of Wallrock Alter. #1 UNKNOWN
    Strike And Dip N60W:75N
    Date of Last Modification 881220

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Mineral rights holdings

Type of mineral rights Unknown

Land status

Ownership category National Forest

Comments on the workings information

  • Workings consist of 1 adit 12.5 m.-long.

Reference information

Bibliographic references

Reporter information

Type Date Name Affiliation Comment
Reporter 20-DEC-1988 Mpm U.S. Bureau of Mines

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.