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  3. Mineral Resource Data System (MRDS)

Thabazimbi

Producer in South Africa 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. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Ownership information
  11. Reserves and resources
  12. Workings at the site
  13. Links to other databases
  14. Bibliographic references
  15. Reporter information

Geologic information

Identification information

Deposit ID 10208063
MRDS ID W027876
MAS/MILS ID 7910200010
Record type Site
Current site name Thabazimbi
Alternate or previous names Thabazimba
Related records 10079055

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: 30.00142, -24.53696 (WGS84)
Location accuracy 5000(meters)

Site location context

Political divisions (FIPS codes)

South Africa(country)

Africa(continent)

Land(continent)

Geographic areas

Country
South Africa

Commodities

Commodity Importance
Iron Primary

Materials information

Materials Type of material
Clay Unknown
Dolomite Unknown
Hematite Unknown
Quartz Unknown

Nearby scientific data

Ore Body (1) 30.00142, -24.53696
ListMap

Economic information

Ore body information

  • Thickness 350M
    Length 2000M
    Width 30M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 TABULAR
    Type of Orebody #2 REPLACEMENT
    Shape of Orebody #2 IRREGULAR
    Primary mode of Origin SEDIMENTATION
    Secondary mode of Origin CONT METASOMATIC
    Primary Ore Control FOLDING
    Secondary Ore Control FAULTING
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 CARBONATE SILIC
    Date of Last Modification 860708

Comments on the geologic information

  • THE TYPICAL HEMATITE ORE OF THE OUTCROPS AND UPPER LEVELS IS A HARD, COMPACT, MASSIVE BLUE HEMATITE, CONTAINING UP TO 68 PERCENT IRON, BUT WITH INCREASING DEPTH THE ORE BECOMES SPECULARITE AND LIMONITIC, TENDING TO BECOME FRIABLE AND REDDISH IN COLOR AND YIELDING A LARGE PROPORTION OF FINES.

Economic information about the deposit and operations

Operation type Surface-Underground
Development status Producer
Commodity type Metallic
Deposit size Large
Significant Yes
Discovery year 1917
Mining method Open Pit
Year of first production 1931

Ownership information

  • Type Operator
    Owner Iscor
    Year 1982
  • Type Owner
    Owner South African Government
    Interest 100
    Year 1982

Comments on the production information

  • THE LUMP ORE AND SINTER FINES FROM THABAZIMBA ARE TRANS- PORTED BY RAIL TO THE PRETORIA WORKS FOR SINTERING.

Reserves and resources

  • Type In-situ
    Estimate year 1981
    Measured 5000000mt ore
    Indicated 22600000mt ore
    Demonstrated 27600000mt ore
    Inferred 66299999mt ore
    Total resources 93899999mt ore
    Commodity Subtype Grade units Group Importance Year
    Iron Fe 64 wt-pct Iron Major 1981
    Iron Fe 64 wt-pct Iron Major 1981
  • Type In-situ
    Estimate year 1993
    Demonstrated 35000000mt ore
    Total resources 35000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Iron Fe 60 wt-pct Iron Major 1993

Comments on the reserve resource information

  • GRADE RANGES FROM 35-67% FE(35%-BANDED IRONSTONE, 67%-HIGH GRADE ORE, RUN OF MINE ORE IS 58% FE. OTHER NAME: DONKERPOORT. INIT. CHANGED FROM "F" TO "N".

Workings at the site

  • Type of workings Surface
    Area 13.5HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Mining Method OPEN PIT
    Percent Waste Rock 82
    Capacity 4600
    Capacity Units MT ORE/DAY
    Unit Production Cost 9.11
    Units of Production $/MT ORE
    Operating Days per Year 325
    Operating Shifts per Day 3
    Year of Information 1982
  • Type of workings Underground
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Mining Method SUBLEVEL CAVING 10-75
    Percent Waste Rock 82
    Capacity 4600
    Capacity Units MT ORE/DAY
    Unit Production Cost 9.11
    Units of Production $/MT ORE
    Operating Days per Year 325
    Operating Shifts per Day 3
    Year of Information 1982

Reference information

Bibliographic references

  • Reserve-Resource

    AME MINERAL ECONOMICS QUARTERLY MINE ANALYSIS, JUN 93,P. 36.

  • Deposit

    MINING & ENGINEERING JOURNAL, THABAZIMBI TO INCREASE OPEN-

  • Deposit

    CAST OUTPUT, JULY, 1972, V. 86, PP 13-16.

  • Deposit

    STRAUSS, C.A., THE IRON ORE DEPOSITS IN THE THABAZIMBI AREA,

  • Deposit

    TRANSVAAL, SOME ORE DEPOSITS IN SOUTHERN AFRICA, VOL. II,

  • Deposit

    1964, PP 383-392.

  • Deposit

    BEUKES, N.J., PRECAMBRIAN IRON-FORMATIONS OF SOUTHERN

  • Deposit

    AFRICA, ECONOMIC GEOLOGY, VOL. 68, 1973, PP 960-1004.

  • Deposit

    KIRCHNER, M.H., TRACKLESS MINING AT THABAZIMBI MINE, JOURNAL

  • Deposit

    OF THE SOUTH AFRICAN INSTITUTE OF MINING AND METALLURGY,

  • Deposit

    AUGUST, 1973, PP 18-24.

  • Deposit

    DEATS, M.J., PILLAR EXTRACTION AT THABAZIMBI IRON ORE MINE

  • Deposit

    WITH SPECIAL REFERENCE TO BLASTING METHODS, JOURNAL OF THE

  • Deposit

    SOUTH AFRICAN INSTITUTE OF MINING AND METALLURGY, JUNE,

  • Deposit

    1964, PP 535-549.

  • Deposit

    SOUTH AFRICAN MINING AND ENGINEERING JOURNAL, LOW LEVEL

  • Deposit

    BOMBING AT THABAZIMBI, NOVEMBER 28, 1969, PP 1199-1202.

  • Deposit

    S.A. MINING AND ENGINEERING JOURNAL, THABAZIMBI IRON ORE

  • Deposit

    MINE, SEPTEMBER, 1979, PP 53-61.

Reporter information

Type Date Name Affiliation Comment
Reporter 23-SEP-1996 Bolis 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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