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Deelkraal

Producer in South Africa with commodities Gold, Silver
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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. Ownership information
  13. Production statistics
  14. Reserves and resources
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10134919
MRDS ID W031007
MAS/MILS ID 7910200068
Record type Site
Current site name Deelkraal
Related records 10080053

Geographic coordinates

Point of reference Claim
Geographic coordinates: 27.33476, -26.4633 (WGS84)
Elevation 1500
Location accuracy 1000(meters)

Site location context

Political divisions (FIPS codes)

South Africa(country)

Africa(continent)

Land(continent)

Geographic areas

Country
South Africa

Commodities

Commodity Importance
Gold Primary
Silver Secondary

Materials information

Materials Type of material
Gold Unknown
Pyrite Unknown
Quartz Unknown
Silver Unknown
Uraninite Unknown

Nearby scientific data

Claim (1) 27.33476, -26.4633
ListMap

Economic information

Ore body information

  • Strike N45E
    Dip 22S
    Thickness 1.2M
    Depth to top 2800M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 TABULAR
    Primary mode of Origin SEDIMENTATION
    Primary Ore Control LITHOLOGY
    Degree of Wallrock Alter. NONE
    Strike And Dip N45E:22S
    Minimum Depth to Top 1838
    Date of Last Modification 860205
  • Strike N45E
    Dip 22S
    Thickness 1.3M
    Depth to top 2550M
    Field Value
    MAS Matrix # 1
    MAS Column # 2
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 TABULAR
    Primary mode of Origin SEDIMENTATION
    Primary Ore Control LITHOLOGY
    Degree of Wallrock Alter. NONE
    Strike And Dip N45E:22S
    Minimum Depth to Top 1838
    Date of Last Modification 860205
  • Area 2366HA
    Field Value
    Total Surface Area (HA) 2366
    Date of Last Modification 910418

Economic information about the deposit and operations

Operation type Underground
Development status Producer
Commodity type Metallic
Deposit size Large
Significant Yes
Discovery year 1974
Year of first production 1980
Milling method Hydrometallurgy Unspecified

Mining district

District name West Rand (West Wits Line) Of Witwatersrand Goldfields

Mineral rights holdings

Type of mineral rights Federal Lease

Ownership information

  • Type Owner-Operator
    Owner Deelkraal Gold Mining Co. Ltd.
    Interest 100
    Home office South Africa
    Year 1982
  • Type Owner
    Owner Consolidated Gold Fields Group
    Home office South Africa
    Year 1982

Production statistics

  • Year 1980
    Description 830000 Mt Of Ore Milled/Yr
  • Year 1981
    Description 1211000 Mt Of Ore Milled/Yr
  • Year 1982
    Material ore
    Ore mined 1500000mt
    Description 1500000 Mt Of Ore Milled/Yr

Comments on the production information

  • DORE BULLION IS TRUCKED TO RAND REFINERY IN GERMISTON, S. AFR., FOR REFINING. REFINERY CHARGE IS INCLUDED IN SMELTING COST.

Reserves and resources

  • Type In-situ
    Estimate year 1978
    Indicated 45000000mt ore
    Demonstrated 45000000mt ore
    Total resources 45000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 10.4 g/mt Gold Major 1978
  • Type In-situ
    Estimate year 1993
    Demonstrated 1180000mt ore
    Total resources 1180000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 11.1 g/mt Gold Major 1993

Comments on the reserve resource information

  • WAS UPDATED FOR THE 1992 AU AVAILABILITY STUDY. 1989 PROD. = 316,093 OZ AU FROM MILLING OF 1,621,000 MT ORE. 1991 PROD. = 306,024 OZ. AU FROM TREATING 1,620,000 TNS ORE.
  • G-REC 1=VENTERSDORP CONTACT REEF; 75% OF TOTAL DEMONSTRATED RESOURCES; 56.4 MILLION MT AT 8.5G/MT AU. G-REC 2=DEELKRAAL REEF; ACCOUNTS FOR 25% OF TOTAL DEMONSTRATED RESOURCES; 18.6 MILLION MT AT 4.6G/MT AU.
  • Q-MAT 1 = VENTERSDORP CONTACT REEF. Q-MAT 2 = DEELKRAAL REEF. Q-MAT 3 = Q-MAT 1 + Q-MAT 2. TOTAL DEMONSTRATED RESOURCES AS OF 1982 IS 75 MILLION MT AT 7.6G/MT OF GOLD.

Workings at the site

  • Type of workings Underground
    Overall depth 1960M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ACTUAL
    Mining Method BREAST STOPING 10-30
    Percent Recovery 100
    Hardness of Rock HARDROCK FISSURED WITH MODERATE WATER
    Rock Characteristics MULTIPLE SYSTEMS OF WEAKNESS PLANES
    Rock Support Chars. SUPPORTING
    Mine Support Chars. POST, HEADBOARD, CAPS, ROOF BOLTS
    Number of Shafts 2
    1st Condition of Workings OPEN
    Capacity 4286
    Capacity Units MT ORE/DAY
    Unit Production Cost 46.05
    Units of Production $/MT ORE
    Operating Days per Year 350
    Operating Shifts per Day 3
    Year of Information 1982
  • Type of workings Underground
    Overall depth 1960M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 2
    Status of Mining Method ACTUAL
    Mining Method BREAST STOPING 10-30
    Percent Recovery 100
    Hardness of Rock HARDROCK FISSURED WITH MODERATE WATER
    Rock Characteristics MULTIPLE SYSTEMS OF WEAKNESS PLANES
    Rock Support Chars. SUPPORTING
    Mine Support Chars. POST, HEADBOARD, CAPS, ROOF BOLTS
    Number of Shafts 2
    1st Condition of Workings OPEN
    Capacity 5714
    Capacity Units MT ORE/DAY
    Unit Production Cost 56.86
    Units of Production $/MT ORE
    Operating Days per Year 350
    Operating Shifts per Day 3
    Year of Information 1982

Comments on other economic factors

  • U1 OUTPUT IS 4286 MT/DAY. TWO SHAFTS, NO. 1 AND NO. 2, ARE 142 METERS APART ON SURFACE. NO. 1 SHAFT IS EQUIPPED WITH 5 CONVEYANCES, BUT HAS ROOM FOR SEVEN; NO. 2 SHAFT HAS BEEN DIVIDED INTO TWO SECTIONS, BY A BRATTICE WALL. A PERCHED WATER TABLE NEAR NO. 2 SHAFT, AT 48 METERS BELOW SURFACE, REQUIRED PUMPING 24 HRS. A DAY. U2 OUTPUT IS 5714 MT/DAY, FROM 1985 TO 2019. NO CRUSHING BEFORE ORE FEED TO THE SLIPPER BEARING MILL. THEREFORE, SECONDARY BLASTING IS USED WHEN REQUIRED.

Reference information

Bibliographic references

  • Geology

    ANHAEUSSER, C.R. 1976, THE NATURE AND DISTRIBUTION OF

  • Geology

    ARCHAEN GOLD MINERALIZATION IN SOUTHERN AFRICA. MINERALS

  • Geology

    SCI. ENGNG., V. 8, NO. 1, PP. 46-84.

  • Geology

    BOYLE, R.W. 1979, THE GEOCHEMISTRY OF GOLD AND IT'S

  • Geology

    DEPOSITS. GEOLOGICAL SURVEY OF CANADA, BULL. 280, 584 PP.

  • Geology

    HAUGHTON, S.H., ED. 1964A, THE GEOLOGY OF SOME ORE

  • Geology

    DEPOSITS IN SOUTHERN AFRICA. V. 1, GOLD DEPOSITS OF THE

  • Geology

    WITWATERSRAND BASIN. GEOL. SOC. S. AFRICA, JOHANNESBURG,

  • Geology

    625 PP.

  • Geology

    LIEBENBERG, W.R. 1972, MINERALOGICAL FEATURES OF GOLD

  • Geology

    ORES IN SOUTH AFRICA. PUBLISHED IN GOLD METALLURGY IN SOUTH

  • Geology

    AFRICA, EDITED BY R.J. ADAMSON. CHAMBER OF MINES OF S. AFR.

  • Geology

    MINTER, U.E.L. 1976, DETRITAL GOLD, URANIUM, AND PYRITE

  • Geology

    CONCENTRATIONS PILATED TO SEDIMENTOLOGY IN THE PRECAMBRIAN

  • Geology

    PRETORIUS, D.A. 1975, THE DEPOSITIONAL ENVIRONMENT OF

  • Geology

    THE WITWATERSRAND GOLDFIELDS. A CHRONOLOGICAL REVIEW OF

  • Geology

    SPECULATIONS AND OBSERVATIONS. MIN. SCI. ENGNG., V. 7,

  • Geology

    NO. 1, PP. 18-47.

  • Geology

    SMITH, N.D., AND W.E.L. MINTER. 1980, SEDIMENTOLOGICAL

  • Geology

    CONTROLS OF GOLD AND URANIUM IN TWO WITWATERSRAND PALEO-

  • Geology

    PLACERS. ECONOMIC GEOLOGY, V. 75, PP. 1-14.

  • Production

    ADAMSON, R.J. (ED.). 1972, GOLD METALLURGY IN SOUTH

  • Production

    AFRICA, CHAMBER OF MINES OF SOUTH AFRICA, 452 PP.

  • Production

    FINANCIAL TIMES. 1981, MINING INTERNATIONAL YEARBOOK

  • Production

    (SELECTED EXCERPTS).

  • Production

    KING, A.. 1949, GOLD METALLURGY ON THE WITWATERSRAND.

  • Production

    TRANSVAAL CHAMBER OF MINES, 458 PP.

  • Production

    MCQUISTON, F.W. AND R.S. SHOEMAKER. 1975, GOLD AND

  • Production

    SILVER CYANIDATION PLANT PRACTICE. SOCIETY OF MINING ENG.

  • Reserve-Resource

    WORLD MINING. RAPID PROGRESS REPORTED AT NEW GOLD MINES.

  • Reserve-Resource

    JAN.1975, P.31.

  • Reserve-Resource

    AME MINERAL ECONOMICS QUARTERLY MINE ANALYSIS, JUN 93,P. 32.

  • Workings

    DEELKRAAL-NEW SOLUTION TO DEVELOPMENT PROBLEMS. WORLD

  • Workings

    MINING, MAY 1980.

  • Deposit

    MINING MAGAZINE. TWO NEW GOLD MINES FOR SOUTH AFRICA, APRIL

  • Deposit

    1974, P.243.

  • Deposit

    MINING JOURNAL. GFSA PRESSES AHEAD WITH NEW PROJECT, MAY 26,

  • Deposit

    1978, P.392.

  • Deposit

    COAL,GOLD& BASE MINERALS OF SOUTHERN AFRICA. CHILLED WATER

  • Deposit

    PLANT FOR DEELKRAAL. IN CHRONICLE OF ACHIEVEMENT, SPECIAL

  • Deposit

    SUPPLEMENT, MARCH 1978, PP.65-69.

  • Deposit

    MINING JOURNAL.MARCH 12,1976, PP.210-211.

  • Deposit

    METALS SOURCEBOOK. ITEM B2002. MARCH 25,1974.

  • Deposit

    WORLD MINING. AUG.1978, P.87.

  • Deposit

    MINING JOURNAL. TWO MINES FOR WEST RAND, MARCH 8,1974.

  • Deposit

    MINING MAGAZINE. DEC. 1974, P. 477.

  • Deposit

    MINING MAGAZINE. APRIL 1976.

  • Deposit

    METALS SOURCEBOOK. ITEM B5035, NOV.11,1974.

  • Deposit

    DMA SERIES 1501. SHEET SG 35-11. SCALE 1:250,000.

  • Deposit

    CHAMBER OF MINES OF SOUTH AFRICA, 1981, RAND REFINERY,

  • Deposit

    P.R.D. SERIES NO. 255, 20PP.

  • Deposit

    CHAMBER OF MINES OF SOUTH AFRICA, 1980, GOLD IN SOUTH

  • Deposit

    AFRICA, P.R.D. SERIES NO. 241, 28PP.

  • Deposit

    CHAMBER OF MINES, 1980, OVERVIEW OF THE SOUTH AFRICAN

  • Deposit

    MINING INDUSTRY.

  • Deposit

    ELEVATORSKI, E.A. 1981, GOLD MINES OF THE WORLD.

  • Deposit

    PUBLISHED BY MINOBRAS, PP. 78-86.

  • Deposit

    POTTS, D. 1981, THE SOUTH AFRICAN GOLD MINING INDUSTRY,

  • Deposit

    1981. PUBLISHED BY CONSOLIDATED GOLD FIELDS, LTD., PP.17-85.

  • Deposit

    GOLD INSTITUTE. 1981, GOLD REGULATIONS AND TAXES FOR

  • Deposit

    MINING, REFINING, MANUFACTURING AND TRADE IN THIRTEEN

  • Deposit

    COUNTRIES. PP. 74-79.

  • Deposit

    CHAMBER OF MINES OF SOUTH AFRICA. 1982, ANALYSIS OF

  • Deposit

    WORKING RESULTS, OCTOBER-DECEMBER, 1981, 8 PP.

  • Deposit

    CHAMBER OF MINES OF SOUTH AFRICA. 1981, 91ST ANNUAL

  • Deposit

    REPORT AND STATISTICAL TABLES. 116 PP.

  • Deposit

    MINING JOURNAL RESEARCH SERVICES. 1982, PRODUCTION AND

  • Deposit

    CAPITAL EXPENDITURES FOR THE SOUTH AFRICAN GOLD MINES, 1966-

  • Deposit

    1981.

  • Deposit

    MINING JOURNAL RESEARCH SERVICES. 1982, SUMMARY REPORT

  • Deposit

    OF PRODUCTION AND RECOVERY FOR THE SOUTH AFRICAN GOLD MINES,

  • Deposit

    1966-1981.

  • Deposit

    MOHIDE, T.F. 1981, GOLD MINERAL POLICY BACKGROUND PAPER

  • Deposit

    NO. 12. ONTARIO MINISTRY OF NATURAL RESOURCES, PP. 84-112.

  • Deposit

    STORRAR, C.D. 1981, SOUTH AFRICAN MINE VALUATION.

  • Deposit

    CHAMBER OF MINES OF SOUTH AFRICA, 470 PP.

General comments

Subject category Comment text
Deposit 15 KM SW OF CARLETONVILLE,SW WESTERN DEEP LEVELS. EXPECTED PRODUCTION BY 1981. CAPACITY 1,680,000 MT ORE/YR.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-94 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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