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  3. Mineral Resource Data System (MRDS)

Unnamed (adjacent to Cantwell Creek)

Occurrence in Alaska, United States with commodity Manganese
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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. 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 10000719
MRDS ID A011358
Record type Site
Current site name Unnamed (adjacent to Cantwell Creek)
Related records 10185311

Geographic coordinates

Geographic coordinates: -148.93671, 63.38654 (WGS84)
Relative position The prospect adjoins the northwest side of Cantwell Creek approximately 1,000 feet upstream from its junction with the Jack River and about 0.6 mile southeast of Cantwell. The site is in sec. 5, T. 18 S., R. 7 W., of the Fairbanks Meridian. The location is accurate to within 1500 feet. This is location 7 of Clark and Cobb (1972).

Site location context

Political divisions (FIPS codes)

Denali(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Healy B-4(quadrangle 1:63,360 scale)

Healy S(quadrangle 1:100,000 scale)

Healy C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Alaska(hydrologic region)

Federal lands

Ahtna, Incorporated(ANCSA Region)

ANCSA Region NTVPIC(Type of land area)

NTVPIC(Federal land areas administered by NTVPIC)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Manganese Critical Primary

Materials information

Materials Type of material
Rhodochrosite Ore
Quartz Gangue

Mineral occurrence model information

Model code 156
USGS model code 25g
Deposit model name Epithermal Mn

Nearby scientific data

(1) -148.93671, 63.38654
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = The host rocks are a melange of Paleozoic and upper Mesozoic sedimentary rocks. An 8-foot-wide outcrop contains crushed and partially recrystallized rhodochrosite; other manganese minerals are present, but not identified. The deposit is probably localized along strands of the McKinley fault.
  • Age = Post-Mesozoic.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Bonnifield

Comments on the workings information

  • Workings / Exploration = Surface samples contain as much as 33.35% manganese (Berg and Cobb,1967).

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Cobb, 1978 (OFR 78-1062)

General comments

Subject category Comment text
Deposit Model Name = Epithermal Mn (Cox and Singer, 1986; model 25g)

Reporter information

Type Date Name Affiliation Comment
Reporter 07-APR-2000 N. Van Wyck 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.