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South African Land and Exploration Company

Producer in South Africa with commodities Gold, Uranium, PGE, Silver, Sulfur-Pyrite
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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. Alteration
  8. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Ownership information
  16. Production statistics
  17. Reserves and resources
  18. Workings at the site
  19. Links to other databases
  20. Bibliographic references
  21. General comments
  22. Reporter information

Geologic information

Identification information

Deposit ID 10071447
MRDS ID W014844
Record type Site
Current site name South African Land and Exploration Company

Geographic coordinates

Geographic coordinates: 28.36812, -26.27993 (WGS84)
Elevation 1585
Relative position IN THE VICINITY OF THE TOWN OF BRAKPAN; FOUR KILOMETERS WEST OF SPRINGS, TRANSVAAL

Site location context

Political divisions (FIPS codes)

South Africa(country)

Africa(continent)

Land(continent)

Geographic areas

Country
South Africa

Commodities

Commodity Importance
Gold Primary
Uranium Secondary
PGE Critical Secondary
Silver Secondary
Sulfur-Pyrite Secondary

Comments on the commodity information

  • URANIUM CONTENTS ARE LOW, AND NOT CURRENTLY RECOVERED. SMALL QUANTITIES PT AND AG RECOVERED BUT UNIMPORTANT IN SOUTH AFRICA TERMS. PT IS AN IMPURITY IN GOLD AND IS RECOVERED AT THE RAND REFINERY AS A CONSEQUENCE OF THE PURIFICATION PROCESS.

Materials information

Materials Type of material
Gold Ore

Alteration

  • (Local) None

Analytical data

Result SEE ENTRIES UNDER PRODUCTION AND RESERVES

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic)
    Rock unit name Ventersdorp System-Lava
    Rock description Ventersdorp System-Lava
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
    Rock unit name Transvaal System-Dolomite;Witwatersrand System (Upper Division)-Quartzities, Shales, Grits, Conglomerates, And Carbon Granules
    Rock description Transvaal System-Dolomite;Witwatersrand System (Upper Division)-Quartzities, Shales, Grits, Conglomerates, And Carbon Granules
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Conglomerate
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic)

Nearby scientific data

(1) 28.36812, -26.27993
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Unique Continuity Of Gold - Bearing Horizons Over Extended Area, Though Well Marked By Folding, Faulting And (Locally) Erosion And Redeposition Of Overlying Sediments.
Type of structure Local
Structure description Gentle Dip Regionally, With Folds And Faults Locally. Overlying Lavas And Dolomites Are Massive.

Ore body information

  • General form TABULAR/BLANKET
    Dip 10 DEG. SW
    Thickness 0.05M
    Depth to bottom 1500M

Controls for ore emplacement

  • Gentle Uplift Of Continental Mass; Erosion; Peneplanation; Folding; Faulting; Volcanicity; And Build - Up Of Younger Sediments. Gold Values Range Erratically From High To Low.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Medium
Significant No
Year of first production 1938

Mining district

District name East Rand Basin Of The Witwatersrand Goldfields

Ownership information

  • Type Owner
    Owner Controlled By Anglo American Corp. Of South Africa Ltd.
  • Type Operator
    Owner The South African Land And Exploration Co., Ltd.

Production statistics

  • Year 1978
    Material ORE AU
    Accuracy Accurate
    Description Ap_Grade: ^0.036 Toz Au/Met Ton Ore Milled
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Gold Gold 1g/mt
  • Year 1978
    Material AU
    Accuracy Accurate
    Description Ap_Grade: ^0.039 T02 Au/Met Ton Ore Milled
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Gold Gold 1g/mt
  • Year 1979
    Material ORE AU
    Accuracy Accurate
    Description Ap_Grade: ^0.024 Toz Au/Met Ton Ore Milled From Dumps.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Gold Gold 1g/mt
  • Year 1979
    Material AU
    Accuracy Accurate
    Description Ap_Grade: ^0.032 Toz Au/Met Ton Ore Milled
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Gold Gold 1g/mt
  • Year 1980
    Material ORE AU
    Accuracy Accurate
    Description Ap_Grade: ^0.023 Toz Au/Met Ton Ore Milled
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Gold Gold 1g/mt
  • Year 1980
    Material AU
    Accuracy Accurate
    Description Ap_Grade: ^0.027 Toz Au/Met Ton Ore Milled From Dumps
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Gold Gold 1g/mt
  • Year 1981
    Material AU
    Accuracy Accurate
    Description Ap_Grade: ^0.023 Toz Au/Met Ton Ore Milled
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Gold Gold 1g/mt
  • Year 1981
    Material ORE AU
    Accuracy Accurate
    Description Ap_Grade: ^0.023 Toz Au/Met Ton Ore Milled
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Gold Gold 1g/mt
  • Year 1986
    Period 1938-1986
    Material ORE AU
    Accuracy Accurate
    Description Cp_Grade: ^0.154 To2 Au/Met Ton Ore Milled
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Gold Gold 4g/mt

Comments on the production information

  • UNDERGROUND MINING TERMINATED AT THE END OF 1976. 1978 PRODUCTION FROM WASTE DUMPS ONLY. DRILLING AND UNDERGROUND DEVELOPMENT ARE CONTINUING. ; UNDERGROUND MINING TERMINATED AT THE END OF 1976. 1978 PRODUCTION FROM WASTE DUMPS ONLY. DRILLING AND UNDERGROUND DEVELOPMENT ARE CONTINUING.

Reserves and resources

  • Type In-situ
    Estimate year 1976
    Total resources 886000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 11.383 g/mt Gold Major 1976

Comments on the reserve resource information

  • FULLY DEVELOPED AND BLOCKED OUT ORE ONLY. PROBABLE AND POSSIBLE RESERVES NOT INCLUDED

Workings at the site

  • Type of workings Underground
    Overall depth 1500M

Comments on development

  • EXPL$: 0.5 (1975) ; MILL.CAP: 1.3 MIL. MET. T/YR. 1970 ; ECON.COM: A LOW GRADE PRODUCER WITH HIGH OPERATING COSTS ($144.30/TROY OUNCE OF GOLD RECOVERED; SEPTEMBER 1976). ESTIMATED LIFE OF MINE: 5 YEARS AT CURRENT PRICE OF GOLD. ONE ORE HORIZON MINED ONLY} MAIN REEF LEADER. URANIUM NOT RECOVERED.

Reference information

Bibliographic references

  • Deposit

    ANGLO AMERICAN CORPORATION OF SOUTH AFRICA LIMITED; ANNUAL REPORTS: 1974 & 1975

  • Deposit

    MINERAL RESOURCES OF SOUTH - CENTRAL AFRICA; PELLETIER, R. A.; 1964

  • Deposit

    IVOR JONES, ROY AND COMPANY, INC., SOUTH AFRICAN GOLD SHARES: JOHANNESBURG, IVOR JONES, ROY AND COMPANY, INC.

  • Deposit

    MINING JOURNAL, 1975, QUARTERLY REVIEW OF SOUTH AFRICA GOLD SHARES: MINING JOURNAL, V. 19. NO. 1, MAY 1975.

  • Production

    COMPANY ANNUAL REPORTS. ; ANGLO AMERICAN CORPORATION ANNUAL REPORT - 1984 ; S.A. LAND AND EXPLORATION ANNUAL REPORT - 1984 ; S.A. LAND AND EXPLORATION ANNUAL REPORT - 1985 ; COMPANY ANNUAL REPORT-1986 ; ANGLO AMERICAN CORPORATION ANNUAL REPORT - 1981 ; ANGLO AMERICAN ANNUAL REPORT - 1982 ; ANGLO AMERICAN CORPORATION ANNUAL REPORT-1982 ; ANGLO AMERICAN CORPORATION ANNUAL REPORT - 1980 ; ANGLO AMERICAN CORPORATION ANNUAL REPORT 1978

General comments

Subject category Comment text
Deposit INFORMATION MERGED FROM RECORD NUMBER W028237 ; W028914 ; W030940 ; W032342 ; W032343 ; W032951 ; W033077 ; W033787 ; W044620 ; W055289
Deposit MAX THICKNESS REFERS TO ORE HORIZON (REEF) ONLY (MAIN REEF LEADER). DEPTH TO BOTTOM ESTIMATED.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1977 Sweetwood, Charles W. Department of State
Updater 01-JUL-1987 Mccarter,Lorna D. Department of State

Beyond USGS

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

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