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E. T. Cons/Agnes Mine

Producer in South Africa with commodities Gold, 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. Alteration
  7. Host and associated rocks
  8. Nearby scientific data
  9. Geologic structures
  10. Ore body information
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  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 10078488
MRDS ID W026835
Record type Site
Current site name E. T. Cons/Agnes Mine

Geographic coordinates

Geographic coordinates: 30.96808, -25.86326 (WGS84)
Elevation 1524
Relative position 13 KILOMETERS SOUTHWEST OF THE TOWN OF BARBERTON

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
Sulfur-Pyrite Tertiary

Comments on the commodity information

  • GOLD/SULFIDE MINERALIZATION IS CONCENTRATED IN AND ADJACENT TO FRACTURES IN DISSEMINATED FORM AS WALLROCK IMPREGNATIONS AND/OR DISCONTINUOUS LENSES AND VEINLETS. 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.

Alteration

  • (Local) All Series In The Swaziland System Include Altered Products (E. G. Basic & Ultrabasic Rocks To Hornblende, Talc And Schists).

Analytical data

Result SEE ENTRIES UNDER PRODUCTION AND RESERVES

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Hornblendite
    Rock unit name Jamestown Igneous Complex-Altered Basics & Ultrabasics;Intrusive Granites (Not Otherwise Defined)
    Rock description Jamestown Igneous Complex-Altered Basics & Ultrabasics;Intrusive Granites (Not Otherwise Defined)
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Slate
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Siltstone
  • Host or associated Host
    Rock type Sedimentary Rock > Chemical Sediment > Chert
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Mafic Volcanic Rock
    Rock unit name Swaziland System-Lavas, Slates, Greywackes & Grits;Moodies Series (System)-Quartzites And Shales
    Rock description Swaziland System-Lavas, Slates, Greywackes & Grits;Moodies Series (System)-Quartzites And Shales

Nearby scientific data

(1) 30.96808, -25.86326
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description All Described Systems, Series And Included Sediments And Intrusives Are Regionally Severely Deformed, Closely Folded And Altered.
Type of structure Local
Structure description Folds, Faults And Fractures Have Produced Complex Structures, Making Stratigraphic Evaluations Difficult. Underlying And Surrounding Intrusive Granites Massive.

Ore body information

  • General form LINEAR AND POD/LENS
    Strike E - W
    Dip 60 - 75 DEG S
    Plunge 40 - 50 DEG E
    Plunge direction EAST
    Thickness 2.4M
    Depth to bottom 730M

Controls for ore emplacement

  • Gentle Uplift Of Continental Mass, Followed By Diastrophism Regionally North Into Rhodesia. Swaziland System Is Thus Highly Folded, Fractured And Faulted Locally.

Comments on the geologic information

  • LOCAL AND REGIONAL INTRUSIVE GRANITE OCCURRENCES ARE NOT ADEQUATELY DEFINED BY NAME. ONE SOURCE REFERS TO GRANITE EXPOSURES AS KAAP VALLEY GRANITE PLUTON IN VICINITY OF MINE. CONFIRMATION NOT AVAILABLE.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Medium
Significant No
Discovery year 1885
Year of first production 1893

Mining district

District name Barberton Goldfield

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner Eastern Transvaal Consolidated Mines, Ltd.
  • Type Owner
    Owner Anglo Transvaal Consolidated Investment Co., Ltd.

Production statistics

  • Year 1976
    Material AU
    Accuracy Accurate
    Description Ap_Grade: ^0.145 Toz Au/Met. Ton Ore Milled
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Gold Gold 0g/mt
  • Year 1976
    Material ORE AU
    Accuracy Accurate
    Description Ap_Grade: ^0.141 Tr. Oz. Au/Met. Ton Of Ore Milled
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Gold Gold 0g/mt
  • Year 1977
    Material AU
    Accuracy Accurate
    Description Ap_Grade: ^0.138 Toz Au/Met Ton Ore Milled
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Gold Gold 0g/mt
  • Year 1977
    Material ORE
    Accuracy Accurate
    Description Ap_Grade: ^0.154 Toz Au/Met Ton Ore Milled
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Gold Gold 0g/mt
  • Year 1978
    Material AU
    Accuracy Accurate
    Description Ap_Grade: ^0.119 Toz Au/Met Ton Ore Milled
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Gold Gold 0g/mt
  • Year 1978
    Material ORE AU
    Accuracy Accurate
    Description Ap_Grade: ^0.103 Toz Au/Met Ton Ore Milled
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Gold Gold 0g/mt
  • Year 1979
    Material AU
    Accuracy Accurate
    Description Ap_Grade: ^0.125 Toz Au/Met Ton Ore Milled
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Gold Gold 0g/mt
  • Year 1979
    Material ORE AU
    Accuracy Accurate
    Description Ap_Grade: ^0.115 Toz Au/Met Ton Ore Milled
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Gold Gold 0g/mt
  • Year 1980
    Material AU
    Accuracy Accurate
    Description Ap_Grade: ^0.090 Toz Au/Met Ton Ore Milled
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Gold Gold 0g/mt
  • Year 1980
    Material ORE AU
    Accuracy Accurate
    Description Ap_Grade: ^0.090 Toz Au/Met Tons Ore Milled
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Gold Gold 0g/mt
  • Year 1981
    Material ORE AU
    Accuracy Accurate
    Description Ap_Grade: ^0.109 Toz Au/Met Ton Ore Milled
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Gold Gold 0g/mt
  • Year 1986
    Period 1986
    Material ORE
    Description Cp_Grade: ^0.148 Toz Au/Met Ton Ore (Total Reserves)
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Gold Gold 0g/mt
  • Year 1986
    Period 1986
    Material ORE
    Description Cp_Grade: ^0.158 Toz Au/Met Ton Ore (Available)
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Gold Gold 0g/mt
  • Year 1986
    Period 1986
    Material ORE
    Description Cp_Grade: ^Total Reserves 0.148 T02 Au/Met Ton Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Gold Gold 0g/mt
  • Year 1986
    Period 1986
    Material ORE
    Description Cp_Grade: ^Available Reserves 0.158 T02 Au/Met Ton Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Gold Gold 0g/mt

Comments on the production information

  • GRADE OF ORE AND TROY OUNCES OF GOLD RECOVERED DURING 1970 - 1973 ARE APPROXIMATE DATA ONLY. PRODUCTION STATISTICS PRIOR TO 1970 NOT AVAILABLE.

Reserves and resources

  • Type In-situ
    Estimate year 1986
    Total resources 475800000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 4.914 g/mt Gold Major 1986

Comments on the reserve resource information

  • E.T.CONSOLIDATED MINES ANNUAL REPORTS ; E.T. CONSOLIDATED MINES ANNUAL REPORT - 1984 ; E.T. CONSOLIDATED ANNUAL REPORT - 1985 ; E.T. CONSOLIDATED MINES ANNUAL REPORT-1986

Workings at the site

  • Type of workings Underground
    Overall depth 730M

Comments on the workings information

  • MINING METHOD: SIDE HILL MINE ENTRY IS HORIZONTAL ADIT, WITH SECONDARY ADITS AND INCLINED SHAFTS AND WINZES UNDERGROUND. OVERHAND FULL SHRINKAGE STOPING EMPLOYED. 3 - 6 METER PILLARS MAINTAINED BETWEEN ORE RECOVERY SHOOTS (CHINAMAN BOXES). ROCK PRESSURE MINIMAL; CRIB TIMBER SUPPORTS NOT NECESSARY. SHRINKAGE PILE IS SELF-SUPPORTING. WASTE ROCK BACKFILLED. ORE IS CRUSHED AND MILLED ON SITE. CONCENTRATES TRUCKED ( 30 KILOMETERS) TO NEW CONSORT PLANT FOR ROASTING.

Comments on development

  • MILL.CAP: 0.1 MIL. MET. T/YR ; ECON.COM: A SMALL PRODUCER BY SOUTH AFRICAN STANDARDS, BUT ECONOMICALLY STABLE AND WITH A LONG-LIFE OUTLOOK.

Reference information

Bibliographic references

  • Deposit

    EASTERN TRANSVAAL CONSOLIDATED MINES, LIMITED; ANNUAL REPORT, 1976

  • Deposit

    MINERAL RESOURCES OF THE REPUBLIC OF SOUTH AFRICA, DEPARTMENT OF MINES, GEOLOGICAL SURVEY; 1976

  • Deposit

    SOUTH AFRICAN MINING AND ENGINEERING JOURNAL,1973, SOUTH AFRICAN MINING AND ENGINEERING JOURNAL, JUNE 1973.

  • Production

    E.T.CONSOLIDATED MINES ANNUAL REPORTS ; E.T. CONSOLIDATED MINES ANNUAL REPORT - 1984 ; E.T. CONSOLIDATED MINES ANNUAL REPORT - 1985 ; E.T. CONSOLIDATED MINES ANNUAL REPORT-1985 ; E.T. CONSOLIDATED MINES ANNUAL REPORT - 1980 ; E.T. CONSOLIDATED MINES ANNUAL REPORT - 1981 ; E.T. CONSOLIDATED MINES ANNUAL REPORT-1982 ; E.T. CONSOLIDATED MINES ANNUAL REPORT-1983 ; ANGLOVAAL EASTERN TRANSVAAL CONSOLIDATED MINES LIMITED ANNUAL REPORT 1978 ; ANGLOVAAL EASTERN TRANSVAAL CONSOLIDATED MINES LIMITED ANNUAL REPORT 1979 ; EASTERN TRANSVAAL CONSOLIDATED MINES, LIMITED, ANNUAL REPORT 1977

General comments

Subject category Comment text
Deposit MAX THICKNESS REFERS TO HOST ROCK MINERALIZED ZONES (VARIABLE FROM A FEW CENTIMETERS TO 2.4 METERS IN THICKNESS). INDIVIDUAL FRACTURES AND PAYSHOOTS STRIKE FOR DISTANCES OF 200 - 600 METERS. DEPTH TO BOTTOM REFERS TO DEPTH OF DEEPEST WORKINGS TO DATE. ULTIMATE (OR MAXIMUM) OREBODY DEPTHS NOT YET KNOWN
Deposit INFORMATION MERGED FROM RECORD NUMBER W028226 ; W028674 ; W028744 ; W030769 ; W032325 ; W032918 ; W033103 ; W033773 ; W044622 ; W055273

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-MAY-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-JUN-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-MAR-1986 Mccarter, Lorna D 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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