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Unnamed (east, southeast of Mankomen Lake)

Occurrence in Alaska, United States with commodity Iron
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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. Alteration
  8. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Mining district
  11. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10307493
Record type Site
Current site name Unnamed (east, southeast of Mankomen Lake)

Geographic coordinates

Geographic coordinates: -144.31765, 62.93668 (WGS84)
Relative position The occurrence is at an elevation of approximately 4,500 feet, about 6.4 miles east, southeast of the east end of Mankomen Lake. The occurrence is in the center of section 5, T. 13 N., R. 6 E., Copper River Meridian. It is probably accurate within 500 feet.

Site location context

Political divisions (FIPS codes)

Valdez-Cordova(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Gulkana D-1(quadrangle 1:63,360 scale)

Gulkana NE(quadrangle 1:100,000 scale)

Gulkana(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Copper River(hydrologic unit)

Copper River(hydrologic accounting unit)

South Central Alaska(hydrologic subregion)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Iron Primary

Materials information

Materials Type of material
Magnetite Ore
Pyrite Ore

Alteration

  • (Local) Related to a contact zone of a granitic body.

Nearby scientific data

(1) -144.31765, 62.93668
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = WGM Inc. (1979, fig. 6) reported an occurrence of magnetite and pyrite associated with the contact of the border phase of the Brimstone granite and the Pennsylvanian to Permian, Tetelna volcanics. A chilled zone of altered potassium-feldspar-rich rocks contains bands of disseminated pyrite and magnetite.

Economic information about the deposit and operations

Development status Occurrence

Comments on exploration

  • Status = Inactive

Mining district

District name Chistochina

Reference information

Bibliographic references

  • Deposit

    WGM Inc., 1979, 1978 Annual Progress Report, Uranium Exploration, Ahtell Creek Area, Volume I: WGM Inc., 39 p., appendices and 4 maps. (Report available, Ahtna Mineral Co., Anchorage, Alaska).

Comments on the references

  • Primary Reference = WGM Inc., 1979

General comments

Subject category Comment text
Deposit Model Name = Skarn(?)
Deposit Other Comments = Additional information can be obtained from Ahtna Minerals in Anchorage, Alaska.

Reporter information

Type Date Name Affiliation Comment
Reporter 07-DEC-00 W.T. Ellis Alaska Earth Sciences
Reporter 07-DEC-00 Hawley, C.C. Hawley Resource Group
Reporter 07-DEC-00 W.J. Nokleberg U.S. Geological Survey

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.