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Marievale Consolidated

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

Geologic information

Identification information

Deposit ID 10078497
MRDS ID W026845
Record type Site
Current site name Marievale Consolidated
Related records 10183553

Geographic coordinates

Geographic coordinates: 28.51812, -26.34659 (WGS84)
Elevation 1646
Relative position 10 KILOMETERS SOUTHEAST OF THE TOWN OF SPRINGS; 10 KILOMETERS NORTHEAST OF THE TOWN OF NIGEL

Site location context

Political divisions (FIPS codes)

South Africa(country)

Africa(continent)

Land(continent)

Geographic areas

Country
South Africa

Commodities

Commodity Importance
Gold Primary
PGE Critical Secondary
Silver Secondary

Comments on the commodity information

  • NO KNOWN ECONOMICALLY RECOVERABLE URANIUM OR OTHER ORES 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

Mineral occurrence model information

Model code 193
USGS model code 29a
Deposit model name Quartz pebble conglomerate Au-U (BC name is Paleoplacer U-Au-PGE-Sn-Ti

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)-Quartzites, Shales, Grits, Conglomerates, And Carbon Granules
    Rock description Transvaal System-Dolomite;Witwatersrand System (Upper Division)-Quartzites, 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) 28.51812, -26.34659
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. N.
    Thickness 1.37M
    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 Small
Significant No
Year of first production 1939

Mining district

District name East Rand Basin Of The Witwatersrand Goldfields

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner Marievale Consolidated Mines Ltd.
  • Type Owner
    Owner Gencor (General Mining Union Corp.)

Production statistics

  • Year 1976
    Material ORE AU
    Accuracy Accurate
    Description Ap_Grade: ^0.105 Tr. Oz. Au/Met. Ton Of Ore Milled
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Gold Gold 0g/mt
  • Year 1986
    Period 1986
    Material ORE AU
    Description Cp_Grade: ^0.148 Toz Au/Met Ton Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Gold Gold 0g/mt
  • Year 1986
    Period 1986
    Material ORE
    Description Cp_Grade: ^0.191 To2 Au/Met Ton Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Gold Gold 0g/mt

Reserves and resources

  • Type In-situ
    Estimate year 1986
    Total resources 52000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 5.94 g/mt Gold Major 1986

Comments on the reserve resource information

  • CHAMBER OF MINES OF SOUTH AFRICA - 1986 ; CHAMBER OF MINES ANALYSIS OF WORKING RESULTS - 1984 ; CHAMBER OF MINES ANALYSIS OF WORKING RESULTS - 1985 ; CHAMBER OF MINES ANALYSIS OF WORKING RESULTS-1986

Workings at the site

  • Type of workings Underground
    Overall depth 1500M

Comments on the workings information

  • MINING METHOD: OVERALL PROGRAM NOW INVOLVES RETREATING FROM PROPERTY BOUNDARIES AND RECOVERY OF ORES PREVIOUSLY BYPASSED AS UNECONOMIC (AT LOWER GOLD PRICES) STOPPING AND BACKFILLING ("SCATTER MINING") IS PRINCIPAL MINING METHOD USED.

Comments on development

  • NEITHER EXPLORATION NOR DEVELOPMENT IS CURRENTLY BEING CARRIED OUT AT THIS OPERATION. NO ADDITIONAL CAPITAL EXPENDITURE HAS BEEN RECORDED SINCE 1974, AND NONE IS PLANNED. ORE RECOVERIES ARE FROM PREVIOUSLY DEVELOPED AND BLOCKED OUT AREAS UNDERGROUND, AND FROM SURFACE STOCKPILES. REPORTS STATE THAT ORE RESERVES CANNOT BE EXTENDED WITH GOLD PRICE RISES. ; MILL.CAP: 1.1 MIL. MET. T/YR. ; ECON.COM: A LOW GRADE PRODUCER WITH MARGINALLY HIGH OPERATING COSTS ($103.69 TROY OUNCE OF GOLD RECOVERED IN 1976 ). ESTIMATED LIFE OF MINE: 5 YEARS. TWO ORE HORIZONS MINED: MAIN REEF AND KIMBERLEY REEF. NO NEW DEVELOPMENT AT THIS MINE SINCE 1969.

Reference information

Bibliographic references

  • Deposit

    UNION CORPORATION LIMITED, ANNUAL REPORT; 1975

  • Deposit

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

  • Deposit

    MINING MAGAZINE, 1976, DEVELOPMENT AND MILLING RESULTS: V. 288, P. 36.

  • Deposit

    MERTIE, 1969, ECONOMIC GEOLOGY OF THE PLATINUM METALS: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 630.

  • Deposit

    PARK AND MACDIARMID, 1970, ORE DEPOSITS: FREEMAN AND CO., P. 441.

  • Deposit

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

  • Deposit

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

  • Production

    CHAMBER OF MINES OF SOUTH AFRICA, AND ANNUAL REPORT. ; CHAMBER OF MINES OF SOUTH AFRICA ANALYSIS OF WORKING RESULTS - 1982 ; CHAMBER OF MINES ANALYSIS OF WORKING RESULTS-1983 ; CHAMBER OF MINES ANALYSIS OF WORKING RESULTS - 1984 ; CHAMBER OF MINES ANALYSIS OF WORKING RESULTS - 1985 ; CHAMBER OF MINES ANALYSIS OF WORKING RESULTS-1986 ; ANALYSIS OF WORKING RESULTS, CHAMBER OF MINES OF SOUTH AFRICA JANUARY-DECEMBER 1979 ; ANALYSES OF WORKING RESULTS, CHAMBER OF MINES OF SOUTH AFRICA - 1980 ; CHAMBER OF MINES OF SOUTH AFRICA - ANALYSIS OF WORKING RESULTS - 1981 ; ANALYSIS OF WORKING RESULTS, CHAMBER OF MINES OF SOUTH AFRICA. JANUARY - DECEMBER 1978 ; ANALYSIS OF WORKING RESULTS, CHAMBER OF MINES OF SOUTH AFRICA, JANUARY-DECEMBER 1977

General comments

Subject category Comment text
Deposit INFORMATION MERGED FROM RECORD NUMBER W028235 ; W028707 ; W028727 ; W030938 ; W032337 ; W032931 ; W033098 ; W033783 ; W044648 ; W055286
Deposit THIS RECORD INCLUDES DATA FROM DUPLICATE RECORD M046875 WHICH HAS BEEN DELETED FROM MRDS.
Deposit MAX. THICKNESS REFERS TO STOPPING WIDTH USED TO RECOVER EACH OF THE TWO HORIZONS MINED AT THIS OPERATION (MAIN REEF AND KIMBERLEY REEF). DEPTH TO BOTTOM IS APPROXIMATE ONLY.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1977 Sweetwood, Charles W. Department of State
Updater 01-JUL-1987 Mccarter, Lorna D Department of State
Updater 01-OCT-1978 Sweetwood, Charles W. Department of State
Updater 01-APR-1980 Sweetwood, Charles W. Department of State
Updater 01-JUL-1981 Mccarter, Lorna D. Department of State
Updater 01-AUG-1982 Mccarter, Lorna D. Department of State
Updater 01-JUL-1984 Mccarter, Lorna D Department of State
Updater 01-JUL-1983 Mccarter, Lorna D. Department of State
Updater 01-JUN-1985 Mccarter, Lorna D Department of State
Updater 01-MAY-1986 Mccarter, Lorna D Department of State
Updater 01-JUN-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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