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Loraine Allanridge

Producer in Free State, South Africa with commodities Gold, PGE, Silver, Sulfur, Uranium
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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 10280163
MRDS ID M046305
MAS/MILS ID 7910150009
Record type Site
Current site name Loraine Allanridge
Related records 10038842

Geographic coordinates

Geographic coordinates: 26.61819, -27.77986 (WGS84)

Site location context

Political divisions (FIPS codes)

Free State(province)

South Africa(country)

Africa(continent)

Land(continent)

Geographic areas

Country State
South Africa Free State

Commodities

Commodity Importance
Gold Primary
PGE Critical Tertiary
Silver Secondary
Sulfur Secondary
Uranium Secondary

Materials information

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

Nearby scientific data

(1) 26.61819, -27.77986
ListMap

Economic information

Ore body information

  • Strike N10W
    Dip 45E
    Thickness 1.3M
    Depth to top 1665M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 TABULAR
    Type of Orebody #2 STRATIFORM
    Primary mode of Origin SEDIMENTATION
    Primary Ore Control LITHOLOGY
    Degree of Wallrock Alter. NONE
    Strike And Dip N10W:45E
    Minimum Depth to Top 1440
    Date of Last Modification 851226
  • Strike N10W
    Dip 25E
    Thickness 1M
    Depth to top 1010M
    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 N10W:25E
    Minimum Depth to Top 1320
    Date of Last Modification 851226
  • Strike N10W
    Dip 25E
    Thickness 1M
    Depth to top 1360M
    Field Value
    MAS Matrix # 1
    MAS Column # 3
    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 N10W:25E
    Minimum Depth to Top 1350
    Date of Last Modification 851226
  • Area 5520HA
    Field Value
    Total Surface Area (HA) 5520
    Date of Last Modification 910418

Economic information about the deposit and operations

Operation type Underground
Development status Producer
Commodity type Both
Significant Yes
Year of first production 1955
Milling method Hydrometallurgy Unspecified

Mining district

District name Orange Free State Gold Fields

Mineral rights holdings

Type of mineral rights Federal Lease

Ownership information

  • Type Owner-Operator
    Owner Loraine Gold Mines Ltd.
    Interest 100
    Home office South Africa
    Year 1982
  • Type Owner
    Owner Anglo Transvaal Consolidated Investment Co., Ltd.
    Home office South Africa
    Year 1982

Comments on the ownership information

  • LIBANON GOLD MINES LTD. IS ADMINISTERED BY ANGLO- TRANSVAAL CORP. LTD.

Production statistics

  • Year 1976
    Description 1123000 Mt Ore Milled
  • Year 1977
    Description 1233999 Mt Ore Milled
  • Year 1978
    Description 1289999 Mt Ore Milled
  • Year 1979
    Description 1233999 Mt Ore Milled
  • Year 1980
    Description 1604999 Mt Ore Milled
  • Year 1981
    Description 1641000 Mt Ore Milled

Comments on the production information

  • PB = PYRITE CONC., CONTAINING S, U3O8, AND A LITTLE AU, IS SOLD FOB MILL TO THE VIRGINIA (HARMONY) U3O8 PLANT. THE COMPANY GETS CREDIT FOR BOTH PYRITE AND U3O8 IN PYRITE.

Reserves and resources

  • Type In-situ
    Estimate year 1993
    Demonstrated 2190000mt ore
    Total resources 2190000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 9.6 g/mt Gold Major 1993

Comments on the reserve resource information

  • M1C3=M1C1+M1C2. M4C1=M1C3+M2C1+M3C3. M3C3=M3C1+M3C2. Q-MAT 1 = ELSBURG REEFS (EA/EB/EC/ED). COL. 1 = REEFS FOR CONVENTIONAL BREAST STOPING COL. 2 = "MASSIVE REEFS" (COALESCED REEFS) FOR SUB-LEVEL STOPING. Q-MAT 2 = BASAL REEF - CONVENTIONAL BREAST STOPING Q-MAT 3 = KIMBERLY STAGE REEFS (B+A) COL. 1 = B REEF - CONVENTIONAL BREAST STOPING COL. 2 = A REEF - CONVENTIONAL BREAST STOPING Q-MAT 4 = COMBINED TOTAL FOR ELSBURG, BASAL, AND KIMBERLY STAGE REEFS.
  • 1989 AU PROD.= 254,264 OZ FROM TREATING 1,585,436 MT ORE. WAS UPDATED FOR THE 1992 AU AVAILABILITY STUDY. 1991 PROD. WAS 219,046 OZ. AU FROM TREATING 1,348,000 TNS ORE.

Workings at the site

  • Type of workings Underground
    Overall depth 1930M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ACTUAL
    Mining Method BREAST STOPING 10-30
    Percent Waste Rock 0
    Percent Recovery 100
    Hardness of Rock HARDROCK FISSURED WITH MODERATE WATER
    Rock Characteristics ONE SYSTEM OF WEAKNESS PLANES
    Rock Support Chars. SUPPORTING
    Mine Support Chars. POST, HEADBOARD, CAPS, ROOF BOLTS
    Number of Shafts 3
    1st Condition of Workings OPEN
    Capacity 4400
    Capacity Units MT ORE/DAY
    Unit Production Cost 62.54
    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 1930M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 2
    Status of Mining Method ACTUAL
    Mining Method SUBLEVEL 10-43
    Percent Waste Rock 0
    Percent Recovery 100
    Hardness of Rock HARDROCK FISSURED WITH MODERATE WATER
    Rock Characteristics ONE SYSTEM OF WEAKNESS PLANES
    Rock Support Chars. SUPPORTING
    Mine Support Chars. POST, HEADBOARD, CAPS, ROOF BOLTS
    Number of Shafts 3
    1st Condition of Workings OPEN
    Capacity 299
    Capacity Units MT ORE/DAY
    Unit Production Cost 39.8
    Units of Production $/MT ORE
    Operating Days per Year 350
    Operating Shifts per Day 3
    Year of Information 1982

Comments on other economic factors

  • PA (DORE BULLION) TRUCKED, BY ARMORED CAR, TO THE RAND REFINERY, IN GERMISTON.
  • AS OF 1982/1983: TOTAL OF 3 SHAFT SYSTEMS FOR PRODUCTION (NOS. 1,2,&3), EACH WITH VERTICAL SHAFT TO NO. 50 OR 56 LEVEL AND SUB-VERTICAL OR SUB-INCLINE SHAFTS FROM 50 OR 56 TO 60/63 OR 69 LEVEL. ADDITION OF 2 MAJOR VERTICAL SHAFTS (NOS. 4 & 5) GIVES TOTAL OF 11 INDIVIDUAL SHAFTS FOR THE LIBANON PROPERTY. U1= CONVENTIONAL BREAST STOPING OF REEFS 1.0-1.35M THICK. U2= SUB-LEVEL STOPING OF "MASSIVE" ELSBURG REEFS. IN THIS SITUATION, AS MANY AS 12 INDIVIDUAL REEFS HAVE BEEN TIGHTLY FOLDED INTO A MINEABLE ZONE OF 25 M THICKNESS, OR GREATER.

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

    VAAL REEF PLACER, WITWATERSRAND, SOUTH AFRICA. ECONOMIC

  • Geology

    GEOLOGY, V. 71, PP. 157-176.

  • Geology

    PRETORIUS, D.A. 1981, GOLD AND URANIUM IN QUARTZ-PEBBLE

  • Geology

    CONGLOMERATES. ECONOMIC GEOLOGY 75TH ANNIVERSARY VOLUME,

  • Geology

    PP. 117-138.

  • 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

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

  • 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.

  • Deposit

    SPECIFIC TO LORAINE:

  • Deposit

    MINING MAGAZINE. SUB-LEVEL STOPING AT LORAINE GOLD MINE

  • Deposit

    IN SOUTH AFRICA. NOV. 1974, PP. 359-365.

  • Deposit

    COAL GOLD & BASE MINERALS OF SOUTHERN AFRICA. SLIDING

  • Deposit

    DOWN THE THERMAL GRADIENT. JAN. 1976, PP. 29-37.

  • Deposit

    LORAINE GOLD MINES, LTD. ANNUAL REPORTS; 1975, 1976,

  • Deposit

    1978, 1979, 1980, 1981.

  • Deposit

    MINING MAGAZINE. EXPANSION PLANS FOR SOUTH AFRICAN GOLD

  • Deposit

    MINE. JUNE, 1974.

  • Deposit

    MINING JOURNAL. QUARTERLY REVIEW OF SOUTH AFRICAN GOLD

  • Deposit

    SHARES. 2/80,5/80,8/80,11/80, 2/81,5/81,8/81,11/81, 2/82.

  • Deposit

    WORLD MINING. APR. 1976, P. 136.

  • Deposit

    MINING MAGAZINE. LEASE DEAL AGREED FOR LORAINE GOLD MINE.

  • Deposit

    MAY 1976, P. 351.

  • Deposit

    WORLD MINING. NOV. 1975, P. 70.

  • Deposit

    WORLD MINING. APR. 1967, P. 136.

General comments

Subject category Comment text
Deposit G-REC 1 = ESLBURG REEFS; G-ATM FOR "MASSIVE" REEFS = 24- 25 M, AND 1.35 M FOR CONVENTIONAL REEFS. DIPS RANGE FROM FLAT (0 DEG.) TO VERTICAL (90 DEG.).

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1994 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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