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Kurumangriqualand Expl.Operations

Producer in South Africa with commodity Asbestos
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Nearby scientific data
  7. Economic information about the deposit and operations
  8. Ownership information
  9. Links to other databases
  10. Bibliographic references
  11. General comments
  12. Reporter information

Geologic information

Identification information

Deposit ID 10231527
MRDS ID W028037
MAS/MILS ID 7910050047
Record type Site
Current site name Kurumangriqualand Expl.Operations
Related records 10107356

Geographic coordinates

Geographic coordinates: 23.50152, -27.82989 (WGS84)

Site location context

Political divisions (FIPS codes)

South Africa(country)

Africa(continent)

Land(continent)

Geographic areas

Country
South Africa

Commodities

Commodity Importance
Asbestos Primary

Nearby scientific data

(1) 23.50152, -27.82989
ListMap

Economic information

Economic information about the deposit and operations

Operation type Underground
Development status Producer
Commodity type Non-metallic
Deposit size Large
Significant No

Ownership information

  • Type Operator
    Owner The Griqualand Exploration And Finance Co. Ltd.
    Home office South Africa
    Year 1978
  • Type Owner
    Owner General Mining And Finance Corp. Ltd.
    Home office South Africa
    Year 1978

Reference information

Bibliographic references

  • Deposit

    DMA SERIES 1501.SHEET SG 34-16.SCALE 1:250,000.

  • Deposit

    LIST OF OPERATING MINING CONCERNS IN THE REPUBLIC OF SOUTH

  • Deposit

    AFRICA AS OF 1ST JANUARY,1976.GOVT.MINING ENGINEER.BOX

  • Deposit

    1132.JOHANNESBURG,S.A.

  • Deposit

    MINERALS BUREAU,S.A.DEPT.OF MINES.MINERALS MARKETING INFORM-

  • Deposit

    ATION,NON-METALLIC MINES IN SOUTH AFRICA.PRELIMINARY

  • Deposit

    REPORT NO.10.JAN.1977.BRAAMFONTEIN.P.17.

  • Deposit

    MANOS.A.INDUSTRIAL MINERALS OF SOUTH AFRICA.REPRINT FORM

  • Deposit

    NOV.1977 ISSUE OF INDUSTRTIAL MINERALS,METAL BULL.LTD.,

  • Deposit

    SURREY,ENGLAND,30 PP.

  • Deposit

    E/MJ.1978 INTL.DIRECTORY OF MINING AND MINERAL PROCESSING

  • Deposit

    OPERATIONS.MCGRAW HILL,N.Y.,1978,P.339.

  • Deposit

    DREYER,C.J.B.ROBINSON,H.A.THE OCCURENCE AND EXPLOITATION OF

  • Deposit

    AMPHIBOLE ASBESTOS IN S.AFRICA.PAPER PRESENTED AT 1978

  • Deposit

    AIME ANNUAL MEETING,DENVER COLO.FEB.28-MAR.2,1978.PRE-

  • Deposit

    PRINT 78-H-64.SOC.OF MINING ENGINEERS.LITTLETON,COLO.

General comments

Subject category Comment text
Deposit 2 MILLS FOR THE GEFCO KURUMAN OPERATIONS-ELCOR AND MERENCOR MILLS. TOTAL OUTPUT CAPACITY FOR GEFCO OPERATIONS IS 50,000 MT/YR. OF LONG,MEDIUM-LONG,MEDIUM,MEDIUM-SHORT AND SHORT FIBER CROCIDOLITE ASBESTOS. ACCORDING TO E/MJ DIRECTORY:8 SHAFTS; ROOM & PILLAR AND CUT & FILL METHODS; TRUCK HAULAGE TO MILLS; TOTAL ORE CAPACITY OF 1,500 MTPD;TOTAL FEED TO MILLS 1,500 MTPD; BENEFICIATION BY CRUSHING, AIR-LIFTING, MIXING, BLENDING & FIBERIZING. GENERAL DESCRIPTION OF KURUMAN DISTRICT MINING,1977: ROOM & PILLAR-VERT.OR INCLINED SHAFTS SUNK TO BELOW LOWEST REEF TO BE MINED (MAX.VERT.DEPTHS 200-250M), SHAFTS EQUIPPED WITH 5 MT SKIPS-SOME SHAFTS HOIST COCOPANS.FOOTWALL HAULAGE LEVELS AND REEF DRIVES AT INTERVALS THRU THE OREBODY.STOPING WIDTHS 4-6M,MOSTLY MECHANIZED OPERATIONS.TYPICAL PILLARS 3MX3M WITH 6M SKIN TO SKIN (75% INITIAL EXTRACTION)-USUALLY POSSIBLE TO REDUCE PILLARS TO 1.5X1.5M GIVING FINAL EXTRACTION OF 93.75%.LHD HAULAGE TO SHAFT.MAX.MONTHLY PRODUCTION FROM A SINGLE LENTICULAR DEPOSIT IS 2,000 MT. DEPOSITS ARE GENERALLY ELLIPTICAL IN SHAPE (LONG AXIS ABOUT THREE TIMES LENGTH OF SHORT AXIS). THEY VARY IN SIZE BUT THE AVG. LONG AXIS IS 500 M AND SHORT AXIS 150 M GIVING AN AVG.AREA OF 236,000 SQ M.SEVERAL REEFS MAY BE MINED OVER THIS AREA.DIPS ARE GENERALLY FLAT WITH MINOR FOLDING DEPOSITS CONTAIN AN AVG. OF 100,000 MT IN-SITU FIBER AT AN AVG.OF 11%. ALL MINING TO 1977 IN KURUMAN DISTRICT HAS BEEN CARRIED OUT ON THE EAST LIMB OF THE DIMOTEN SYNCLINE (DEPOSITS SHALLOW -AVG.DEPTH 150 M, AND LOW DIPS-4 TO 6 DEG.)-LITTLE MINING OR DRILLING BELOW 250 M.DEPTH. KURUMAN FIELD RESOURCE (DREYER & ROBINSON,1977): "PRODUCTION POTENTIAL OF 300,000 MTPY FIBER TO A DEPTH OF 1,000 M" & WITH 2/3 OF THE AREA UNEXPLOITED AT DEPTH THE LIFE EXPECTANCY OF THIS FIELD CAN BE PROJECTED WELL BEYOND THE YEAR 2000. AS OF JAN.1,1976 GRIQUALAND EXPLORATION AND FINANCE CO.LTD. OPERATED 10 MINES IN THE KURUMAN DISTRICT.THE MINE NAMES ARE: ASBES, BRETBY, ELDORET, MT.VERA, WHITE ROCK, STRELLEY, CORETSI, GREYLING, RIRIES AND KURUMAN. CODED COORDINATES ARE OF THE GEFCO POST OFFICE 39 KM SW OF KURUMAN. THE ONLY MINE FOR WHICH COORDINATES CAN BE MATCHED WITH A NAME IS CORETSI AT 27 DEGREES 10 MINUTES SOUTH AND 23 DEGREES 5 MINUTES 30 SECONDS EAST.

Reporter information

Type Date Name Affiliation Comment
Reporter 21-OCT-1983 Boyle, Ed 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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