Magnetic Taconite Mesabi Range 21w

Prospect in St. Louis county in Minnesota, United States with commodities Iron, Water, Free
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Mining district
  11. Mineral rights holdings
  12. Land status
  13. Ownership information
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10268147
MAS/MILS ID 0271370040
Record type Site
Current site name Magnetic Taconite Mesabi Range 21w
Alternate or previous names Range 21w Magnetic Taconite

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -92.95855, 47.45999 (WGS84)
Elevation 490
Location accuracy 1000(meters)

Site location context

Political divisions (FIPS codes)

St. Louis(county)

Minnesota(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Hibbing(quadrangle 1:24,000 scale)

Hibbing(quadrangle 1:100,000 scale)

Hibbing(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

St. Louis(hydrologic unit)

St. Louis(hydrologic accounting unit)

Western Lake Superior(hydrologic subregion)

Great Lakes(hydrologic region)

Geographic areas

Country State County
United States Minnesota St. Louis

Comments on the location information

  • DEPOSIT REVISED 1982 AT EFOC. DEPOSIT ON KEEWATIN AND HIBBING 7.5 MIN. QUAD. MAPS.

Commodities

Commodity Importance
Iron Primary
Water, Free Tertiary

Materials information

Materials Type of material
Ankerite Unknown
Magnetite Unknown
Quartz Unknown

Nearby scientific data

Ore Body (1) -92.95855, 47.45999

Economic information

Ore body information

  • Thickness 38M
    Length 9420M
    Depth to top 7M
    Field Value
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 TABULAR
    Primary mode of Origin SEDIMENTATION
    Primary Ore Control LITHOLOGY
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 UNKNOWN
    Strike And Dip N70E:
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 7
    Min. Thick. Unconsol. Mat. 0
    Date of Last Modification 821202

Comments on the geologic information

  • OTHER MINERALS PRESENT INCLUDE MINNESOTAITE & STILPNOMELANE.
  • RESERVES FROM LOWER CHERTY MEMBER. WIDTH OF MINABLE ORE RANGES FROM 1380-2620 M. DIP VARIES FROM 2-7 DEGREES. BOTTOM LEAN TACONITE THICKNESS - 7 METERS. LENGTH AND WIDTH REFER TO THE ENTIRE BIWABIK FORMATION OF RANGE 21W. THICKNESS REFERS TO AVERAGE THICKNESS OF THE TACONITE UNITS OF RANGE 21W. HOST ROCK IS METASEDIMENT.

Economic information about the deposit and operations

Operation type Surface
Development status Prospect
Commodity type Both
Significant No

Mining district

District name Lake Superior

Mineral rights holdings

Type of mineral rights Unknown

Land status

Ownership category Unknown

Ownership information

  • Type Owner
    Owner Numerous Private Owners
    Home office Minnesota
    Year 1982

Comments on the ownership information

  • LAND HOLDINGS OF INDIVIDUAL OWNERS NOT DETERMINED.

Comments on the production information

  • MESABI RANGE DISCOVERED AT END OF 19TH CENTURY.

Comments on the reserve resource information

  • NO DEDUCTIONS HAVE BEEN MADE IN DEPOSIT RESERVES FOR THE ROADS IN THE AREA. GRADE REPORTED IN TERMS OF WEIGHT RECOVERY; WT. REC. = 29.2.

Reference information

Bibliographic references

  • Reserve-Resource

    MARSDEN, R.W. ESTIMATION AND EVALUATION OF THE IRON ORE

  • Reserve-Resource

    RESERVES OF THE UNITED STATES - A PARTIAL SURVEY 1974-

  • Reserve-Resource

    75. IRON ORE RESERVES OF THE MESABI RANGE, MINNESOTA.

  • Reserve-Resource

    A MINERALS AVAILABILITY SYSTEM REPORT. BUMINES OFR

  • Reserve-Resource

    109-80, 1980, 81 PP.; NTIS PB 80-228984.

  • Reserve-Resource

    # TONNAGES REPORTED BY MARSDEN, NO MATTER WHAT THE UNIT

  • Reserve-Resource

    # DESIGNATION, WERE ASSUMED TO BE IN LONG TONS BECAUSE

  • Reserve-Resource

    # OF THE INCONSISTENCY OF UNITS IN HIS REPORT AND HIS

  • Reserve-Resource

    # EXPLANATION THAT HE MADE NO CONVERSIONS TO METRIC

  • Reserve-Resource

    # TONS BECAUSE OF THE GENERALIZED NATURE OF THE DATA.

Reporter information

Type Date Name Affiliation Comment
Reporter 27-FEB-1984 T J M U.S. Bureau of Mines

Beyond USGS

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