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Magnetic Taconite Mesabi Range 18w

Prospect in St. Louis county in Minnesota, United States with commodities Iron, Water, Free
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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. 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. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10170742
MAS/MILS ID 0271370037
Record type Site
Current site name Magnetic Taconite Mesabi Range 18w
Alternate or previous names Range 18w Magnetic Taconite

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -92.6238, 47.53919 (WGS84)
Elevation 457
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

Virginia(quadrangle 1:24,000 scale)

Vermilion Lake(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

Commodities

Commodity Importance
Iron Primary
Water, Free Tertiary

Materials information

Materials Type of material
Ankerite Unknown
Magnetite Unknown
Quartz Unknown
Siderite Unknown

Nearby scientific data

Ore Body (1) -92.6238, 47.53919
ListMap

Economic information

Ore body information

  • Strike N76E
    Dip 06S
    Thickness 90M
    Length 9800M
    Width 1400M
    Area 3700HA
    Depth to top 7M
    Field Value
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 TABULAR
    Primary mode of Origin SEDIMENTATION
    Primary Ore Control OTHER
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 UNKNOWN
    Strike And Dip N76E:06S
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 7
    Min. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 3700
    Date of Last Modification 821119

Comments on the geologic information

  • THERE APPEARS TO BE AN IMPORTANT CHANGE IN METAMORPHIC RANK IN THE SOUTHWESTERN PART OF RANGE 18; VERY LITTLE MAGNETITE OCURS IN THE BIWABIK FORMATION IN THIS AREA IN ZONES THAT CONTAIN ORE AND LEAN ORE TO THE EAST. THE TOTAL OUTCROP WIDTH OF MINEABLE MAGNETITE TACONITE, AND BOTTOM LEAN ORE, INCLUDING ROCK-IN-ORE ZONES, RANGES FROM ABOUT 915 TO 1920 METERS. THE DIP VARIES FROM ABOUT 4 TO 15 DEGREES WITH COMMON DIPS BEING 5 TO 7 DEGREES. THE STEEPER DIPS ARE ASSOCIATED WITH A MONOCLINE IN THE CENTRAL PART OF THE IRON-FORMATION OUTCROP. LENGTH AND WIDTH REFER TO THE ENTIRE BIWABIK FORMATION OF RANGE 18W. THICKNESS REFERS TO AVERAGE THICKNESS OF THE TACONITE UNITS OF RANGE 18W. HOST ROCK IS METASEDIMENT.
  • OTHER MINERALS PRESENT INCLUDE MINNESOTAITE, STILPNOMELANE, AND GREENALITE.

Economic information about the deposit and operations

Operation type Surface
Development status Prospect
Commodity type Both
Significant Yes

Mining district

District name Lake Superior

Mineral rights holdings

Type of mineral rights Unknown

Land status

Ownership category Private

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. MINING ON RANGE 20W BEGAN IN 1977 AT HIBBING DEPOSIT; THIS PROPERTY NOT CONSIDERED PART OF THIS DEPOSIT.

Comments on the reserve resource information

  • GRADE REPORTED IN TERMS OF WEIGHT RECOVERY; WT. REC. = 31.1.
  • FUNDED UNDER MAGNETITE TACONITE MESABI RANGE 0121370034A.

Workings at the site

  • Type of workings Surface
    Area 2600HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method OPEN PIT
    Swell Factor .68
    Avg. Overburden Thickness 7
    Primary Material Cover SAND, GRAVEL
    Hardness of Ore M-HARD ROCKS
    Avg. Bench Height (meters) 12
    Max. Pit Slope (degrees) 57
    Capacity 80000
    Capacity Units MT ORE/DAY
    Unit Production Cost 1.75
    Units of Production $/MT ORE
    Operating Days per Year 365
    Operating Shifts per Day 3
    Year of Information 1982

Comments on the workings information

  • AREA DISTURBED IS ESTIMATED BASED ON ASSUMED PIT DIMENSIONS FOR THE NON-PRODUCING AREAS. THIS FIGURE INCLUDES 1100 HECTARES FOR MINE AND MILL SITE, AND TAILINGS DISPOSAL

Reference information

Bibliographic references

  • 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.

  • Deposit

    ARGALL, G.C. EIGHTH INTERNATIONAL MINING PROCESSING

  • Deposit

    CONGRESS-U.S.S.R. WORLD MINING, V. 4, NO. 8, JULY

  • Deposit

    1968, PP. 18-22.

  • Deposit

    BORGESON, O.W., AND K.F. JOPKE. HIBBING TACONITE STORY-

  • Deposit

    MINING. SKILLINGS' MIN. REV., MARCH 8, 1980, PP.

  • Deposit

    12-15.

  • Deposit

    CARLSON, G.N., AND R.A. BAUER. HIBBING TACONITE STORY-

  • Deposit

    PELLETIZING. SKILLINGS' MIN. REV., MARCH 22, 1980,

  • Deposit

    PP. 10-13.

  • Deposit

    EMMONS, W.H., AND F.F. GROUT (EDS.). MINERAL RESOURCES OF

  • Deposit

    MINNESOTA. MINN. GEOLOGICAL SURVEY BULL. 30, 1943, PP. 13-

  • Deposit

    57.

  • Deposit

    HOPPE, R.W. HIBBING TACONITE MASTERS THE COMPLEX. ENG.

  • Deposit

    AND MIN. J., V. 180, SEPTEMBER 1979, PP. 66-75.

  • Deposit

    LONG, D.A. IRON ORE QUALITY CONTROL, PART 1. ENG. AND

  • Deposit

    MIN. J., V. 182, OCTOBER 1981, PP. 77-85.

  • Deposit

    LONG, D.A. IRON ORE QUALITY CONTROL, PART 2. ENG. AND

  • Deposit

    MIN. J., V. 182, DECEMBER 1981, PP. 57-67.

  • Deposit

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

  • Deposit

    RESERVES OF THE UNITED STATES - A PARTIAL SURVEY 1974-

  • Deposit

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

  • Deposit

    A MINERALS AVAILABILITY SYSTEM REPORT. BUMINES OFR

  • Deposit

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

  • Deposit

    MARSDEN, R.W., J.W. EMANUELSON, J.S. OWENS, N.E. WALKER,

  • Deposit

    AND R.F. WERNER. THE MESABI IRON RANGE, MINNESOTA.

  • Deposit

    CH. IN ORE DEPOSITS OF THE UNITED STATES, 1933-1967,

  • Deposit

    V. 1, ED. BY J.D. RIDGE. AIME, NEW YORK, 1968, PP.

  • Deposit

    518-537.

  • Deposit

    MATSON, C.L., AND A.E. ENGLUND. HIBBING TACONITE STORY-

  • Deposit

    ORE DRESSING. SKILLINGS' MIN. REV., MARCH 15, 1980,

  • Deposit

    PP. 8-16.

  • Deposit

    MINERAL RESOURCES RESEARCH CENTER. MINNESOTA MINING

  • Deposit

    DIRECTORY - 1981. ED. BY W.D. TRETHEWAY. UNIV. OF

  • Deposit

    MINN., MINNEAPOLIS, MINN., 1981, 266 PP.

  • Deposit

    RAMPACEK, C. AGGLOMERATION. CH. IN SME MINING ENGINEERING

  • Deposit

    HANDBOOK, ED. BY I.A. GIVEN. SOC. MIN. ENG., AIME,

  • Deposit

    NEW YORK, V. 2, 1973, PP. 27-67 TO 27-75.

  • Deposit

    SKILLINGS' MINING REVIEW. INLAND'S MINORCA MINE REACHES

  • Deposit

    PRODUCTION CAPACITY. JANUARY 6, 1979, PP. 12-44.

  • Deposit

    STRASSBURGER, J.H.(ED.). BLAST FURNACE-THEORY AND PRACTICE.

  • Deposit

    GORDON AND BREACH SCIENCE PUBLISHERS, NEW YORK,

  • Deposit

    1969, PP. 165-219, 279-324.

  • Deposit

    U.S. BUREAU OF MINES. IRON, A MATERIALS SURVEY.

  • Deposit

    IC 8574, 1973, PP. 35-41.

  • Deposit

    WHITE, D.A. THE STRATIGRAPHY AND STRUCTURE OF THE MESABI

  • Deposit

    RANGE, MINNESOTA. MINN. GEOLOGICAL SURVEY BULL 38, 1954,

  • Deposit

    92 PP.

General comments

Subject category Comment text
Deposit DEPOSIT EVALUATED AT EFOC. DEPOSIT OCCURS ON VIRGINIA AND KINNEY 7.5 MIN. QUAD. MAPS. MOISTURE CONTENT OF THE ORE IS LESS THAN 2% AND, IN ACCORDANCE WITH THE INDUSTRY PRACTICE, WAS ASSUMED TO BE NEGLIGIBLE. THE PLANT CAPACITY WAS 29200000 MTPY.

Reporter information

Type Date Name Affiliation Comment
Reporter 09-MAR-1995 Ghp-EFOC U.S. Bureau of Mines

Beyond USGS

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

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