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C.S.A.

Plant in New South Wales, Australia with commodities Copper, Gold, Lead, Silver, Zinc
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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. Ownership information
  12. Production statistics
  13. Reserves and resources
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10304590
MAS/MILS ID 6020150001
Record type Site
Current site name C.S.A.
Alternate or previous names Csa

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: 145.84865, -31.52628 (WGS84)
Elevation 1100
Location accuracy 1000(meters)

Site location context

Political divisions (FIPS codes)

New South Wales(province)

Australia(country)

Australia(continent)

Land(continent)

Geographic areas

Country State
Australia New South Wales

Commodities

Commodity Importance
Copper Primary
Gold Secondary
Lead Primary
Silver Secondary
Zinc Critical Primary

Materials information

Materials Type of material
Arsenopyrite Unknown
Chalcopyrite Unknown
Covellite Unknown
Galena Unknown
Gold Unknown
Magnetite Unknown
Marcasite Unknown
Pyrite Unknown
Pyrrhotite Unknown
Silver Unknown
Sphalerite Unknown
Tetrahedrite Unknown

Nearby scientific data

Ore Body (1) 145.84865, -31.52628
ListMap

Economic information

Ore body information

  • Strike N45W
    Dip 80N
    Thickness 130M
    Length 1000M
    Width 600M
    Depth to top 770M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 DISSEMINATED
    Shape of Orebody #1 TABULAR
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control FOLDING
    Secondary Ore Control FAULTING
    Degree of Wallrock Alter. INTENSE
    Type of Wallrock Alter. #1 UNKNOWN
    Strike And Dip N45W:80N
    Minimum Depth to Top 540
    Date of Last Modification 810731
  • Area 189HA
    Field Value
    Total Surface Area (HA) 189
    Date of Last Modification 910418

Economic information about the deposit and operations

Operation type Underground
Development status Plant
Commodity type Metallic
Significant Yes
Discovery year 1869
Mining method Open Stope
Year of first production 1907
Plant type Beneficiation (Mill)
Plant subcategory Flotation
Milling method Flotation

Mining district

District name Cobar Basin Deposits

Ownership information

  • Type Operator
    Owner Cobar Mines Ltd.
    Home office Australia
    Year 1994
  • Type Owner
    Owner Votraint No. 724 Pty. Ltd.
    Interest 23
    Home office Australia
    Year 1993
  • Type Owner
    Owner Golden Shamrock Mines Ltd.
    Interest 38.5
    Home office Australia
    Year 1993
  • Type Owner
    Owner Pacific Road Securities Pty. Ltd.
    Interest 38.5
    Home office Australia
    Year 1993

Comments on the ownership information

  • CRA LTD. SOLD 100% OF COBAR MINES LTD. TO VOTRAINT NO. 724 PTY. LTD. WHICH IS IN TURN OWNED BY A CONSORTIUM LED BY GOLDEN SHAMROCK MINES LTD. AND PACIFIC ROAD SECURITIES PTY. LTD.

Production statistics

  • Year 1976
    Description 2.2% Zn, 1.6% Cu, 0.5% Pb, 23.0 G Ag 594000 Mt Ore Mill Feed
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Lead Lead 1wt-pct
    Major Ore Copper Copper 2wt-pct
    Major Ore Zinc Zinc 2wt-pct
    Minor Ore Silver Silver 23g/mt
  • Year 1977
    Description 3.17% Zn, 1.47% Cu, 0.81% Pb, 23.0 G Ag 544600 Mt Ore Mill Feed
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Minor Ore Silver Silver 23g/mt
    Major Ore Lead Lead 1wt-pct
    Major Ore Copper Copper 1wt-pct
    Major Ore Zinc Zinc 3wt-pct
  • Year 1978
    Description 3.43% Zn, 1.53% Cu, 1.27% Pb, 22.0 G Ag 475100 Mt Ore Mill Feed
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Minor Ore Silver Silver 22g/mt
    Major Ore Lead Lead 1wt-pct
    Major Ore Copper Copper 2wt-pct
    Major Ore Zinc Zinc 3wt-pct
  • Year 1979
    Description 1.67% Zn, 1.37% Zn, 0.58% Pb, 23.0 G Ag 460100 Mt Ore Mill Feed
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Minor Ore Silver Silver 23g/mt
    Major Ore Lead Lead 1wt-pct
    Major Ore Zinc Zinc 2wt-pct
  • Year 1980
    Description 2.67% Zn, 1.56% Cu, 0.97 % Pb, 23.0 G Ag 453000 Mt Ore Mill Feed
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Minor Ore Silver Silver 23g/mt
    Major Ore Lead Lead 1wt-pct
    Major Ore Copper Copper 2wt-pct
    Major Ore Zinc Zinc 3wt-pct
  • Year 1981
    Description 3.51% Zn, 1.24% Cu, 1.41% Pb, 21.0 G Ag 422000 Mt Ore Mill Feed
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Minor Ore Silver Silver 21g/mt
    Major Ore Lead Lead 1wt-pct
    Major Ore Copper Copper 1wt-pct
    Major Ore Zinc Zinc 4wt-pct
  • Year 1982
    Description 2.35% Zn, 1.65% Cu, 0.78% Pb, 24.0 G Ag 540400 Mt Ore Mill Feed
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Lead Lead 1wt-pct
    Major Ore Copper Copper 2wt-pct
    Major Ore Zinc Zinc 2wt-pct
    Minor Ore Silver Silver 24g/mt
  • Year 1983
    Description 1.93% Zn, 1.70% Cu, 0.77% Pb, 24.0 G Ag 625200 Mt Ore Mill Feed
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Minor Ore Silver Silver 24g/mt
    Major Ore Lead Lead 1wt-pct
    Major Ore Copper Copper 2wt-pct
    Major Ore Zinc Zinc 2wt-pct
  • Year 1984
    Description 2.89% Zn, 1.54% Cu, 1.05% Pb, 24.0 G Ag 543900 Mt Ore Mill Feed
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Lead Lead 1wt-pct
    Major Ore Copper Copper 2wt-pct
    Major Ore Zinc Zinc 3wt-pct
    Minor Ore Silver Silver 24g/mt
  • Year 1985
    Description 2.25% Zn, 2.24% Cu, 0.89% Pb, 23.0 G Ag 349100 Mt Ore Mill Feed
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Lead Lead 1wt-pct
    Major Ore Copper Copper 2wt-pct
    Major Ore Zinc Zinc 2wt-pct
    Minor Ore Silver Silver 23g/mt
  • Year 1986
    Description 3.76% Zn, 1.68% Cu, 0.87% Pb, 21.0 G Ag 825000 Mt Ore Mill Feed
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Minor Ore Silver Silver 21g/mt
    Major Ore Lead Lead 1wt-pct
    Major Ore Copper Copper 2wt-pct
    Major Ore Zinc Zinc 4wt-pct
  • Year 1987
    Description 2.31% Zn, 2.22% Cu, 0.31% Pb, 22.0 G Ag 887000 Mt Ore Mill Feed
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Minor Ore Silver Silver 22g/mt
    Major Ore Lead Lead 0wt-pct
    Major Ore Copper Copper 2wt-pct
    Major Ore Zinc Zinc 2wt-pct
  • Year 1988
    Description 2.3% Zn, 2.3% Cu, 0.6% Pb, 24.0 G Ag 909000 Mt Ore Mill Feed
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Copper Copper 2wt-pct
    Minor Ore Silver Silver 24g/mt
    Major Ore Lead Lead 1wt-pct
    Major Ore Zinc Zinc 2wt-pct
  • Year 1989
    Description 902000 Mt Ore Mill Feed
  • Year 1990
    Description 2.05% Zn, 2.05% Cu, 0.7% Pb, 19.0 G Ag 910800 Mt Ore Mill Feed
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Lead Lead 1wt-pct
    Minor Ore Silver Silver 19g/mt
    Major Ore Copper Copper 2wt-pct
    Major Ore Zinc Zinc 2wt-pct

Reserves and resources

  • Type In-situ
    Estimate year 1981
    Measured 2500000mt ore
    Indicated 28500000mt ore
    Demonstrated 31000000mt ore
    Total resources 31000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 1.56 wt-pct Copper Major 1981
    Lead Pb 1.44 wt-pct Lead Major 1981
    Zinc Zn 3.33 wt-pct Zinc Major 1981
    Silver Ag 26.6 g/mt Silver Minor 1981
  • Type In-situ
    Estimate year 1987
    Measured 1100000mt ore
    Demonstrated 1100000mt ore
    Total resources 1100000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 2.6 wt-pct Copper Major 1987
    Lead Pb 2 wt-pct Lead Major 1987
    Zinc Zn 0.3 wt-pct Zinc Major 1987
    Silver Ag 23 g/mt Silver Minor 1987
  • Type In-situ
    Estimate year 1987
    Indicated 700000mt ore
    Demonstrated 700000mt ore
    Total resources 700000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 1.8 wt-pct Copper Major 1987
    Lead Pb 3.2 wt-pct Lead Major 1987
    Zinc Zn 1.5 wt-pct Zinc Major 1987
    Silver Ag 23 g/mt Silver Minor 1987
  • Type In-situ
    Estimate year 1987
    Indicated 1800000mt ore
    Demonstrated 1800000mt ore
    Total resources 1800000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 2.3 wt-pct Copper Major 1987
    Lead Pb 2.5 wt-pct Lead Major 1987
    Zinc Zn 0.8 wt-pct Zinc Major 1987
    Silver Ag 23 g/mt Silver Minor 1987
  • Type In-situ
    Estimate year 1990
    Indicated 5600000mt ore
    Demonstrated 5600000mt ore
    Total resources 5600000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 2.78 wt-pct Copper Major 1990
    Lead Pb 0.7 wt-pct Lead Major 1990
    Zinc Zn 2.7 wt-pct Zinc Major 1990
  • Type In-situ
    Estimate year 1986
    Indicated 1600000mt ore
    Demonstrated 1600000mt ore
    Total resources 1600000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 2.2 wt-pct Copper Major 1986
    Lead Pb 0.65 wt-pct Lead Major 1986
    Zinc Zn 3.3 wt-pct Zinc Major 1986
  • Type In-situ
    Estimate year 1994
    Demonstrated 9600000mt ore
    Total resources 9600000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 3.35 wt-pct Copper Major 1994
  • Type In-situ
    Estimate year 1994
    Total resources 14700000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 3.49 wt-pct Copper Major 1994
  • Type In-situ
    Estimate year 1994
    Demonstrated 9600000mt ore
    Total resources 9600000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 3.35 wt-pct Copper Major 1994

Workings at the site

  • Type of workings Underground
    Overall depth 500M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method OPEN STOPE
    Percent Recovery 90
    Hardness of Rock UNKNOWN
    Rock Characteristics ONE SYSTEM OF WEAKNESS PLANES
    Rock Support Chars. UNKNOWN
    Mine Support Chars. UNKNOWN
    Number of Shafts 2
    Length of Inclines (m) 1000
    Slope of Inclines 8
    Number of Inclines 1
    1st Condition of Workings OPEN
    Capacity 3400
    Capacity Units MT ORE/DAY
    Units of Production $/MT ORE
    Operating Days per Year 250
    Operating Shifts per Day 3
    Year of Information 1987

Reference information

Bibliographic references

  • Reserve-Resource

    CRA LTD., 1987 ANNUAL REPORT, P. 74.

  • Reserve-Resource

    REGISTER OF AUSTRALIAN MINING, 1991/92, P. 184.

  • Reserve-Resource

    AME MINERAL ECONOMICS QUARTERLY MINE ANALYSIS, JUNE 1993,

  • Reserve-Resource

    P. 43, 48.

  • Reserve-Resource

    REGISTER OF AUSTRALIAN MINING, 1994/95, P.216,217.

  • Deposit

    1975 E/MJ INTERNATIONAL DIRECTORY OF MINING. P.204.

  • Deposit

    RUSSEL,R.T. AND LEWIS,B.R. ,1965,GOLD AND COPPER DEPOSITS OF

  • Deposit

    THE COBAR DISTRICT,GEOLOGY OF AUSTRALIAN ORE DEPOSITS,VOL

  • Deposit

    I,EDITED BY JOHN MCANDREW. 8TH COMMONWEALTH MINING AND

  • Deposit

    METALURGICAL CONGRESS, P.411-419.

  • Deposit

    AUSTRALIAN MINERAL INDUSTRY 1969 REVIEW,

  • Deposit

    1970,BUREAU OF MINERAL RESOURCES,GEOLOGY AND GEOPHYSICS

  • Deposit

    CANBERRA.

  • Deposit

    RAYNER,E.O. 1969, THE COPPER ORES OF THE COBAR REGION NSW,

  • Deposit

    MEMOIRS OF THE GEOLOGICAL SURVEY OF NSW GEOLOGY, NO,10.

  • Deposit

    METALS SOURCE BOOK ., DEC 24 1973.

  • Deposit

    ANON. 1973."COPPER MINING AT COBAR", AUSTRALIAN MINING P.16.

  • Deposit

    BROOKE,W.J.L. 1975. "COBAR MINING FIELD" ECONOMIC GEOLOGY OF

  • Deposit

    AUSTRALIA AND PAPUA NEW GUINEA. AUSTRALIAN INSTITUTE OF

  • Deposit

    MINING AND METALURGY. VICTORIA. P.683.

  • Deposit

    LOUTHEAN,R. 1980 REGISTER OF AUSTRALIAN MINING. NEDLANDS

  • Deposit

    P.117.

  • Deposit

    NIGHTINGALE,W.G.1979. MINING INTERNATIONAL YEARBOOK

  • Deposit

    FINANCIAL TIMES. P.158.

  • Deposit

    MINING JOURNAL, MAY 24, 1985, PP. 370, 371.

  • Deposit

    MINER NEWPAPER, VOL 8, NO. 10, MAY 20-JUNE 2, 1985, P. 13.

  • Deposit

    MINER NEWSPAPER, VOL 8, NO. 11, JUNE 3-16, 1985, P. 1.

  • Deposit

    MINER NEWSPAPER, VOL 8, NO. 10, MAY 20-JUNE 2, 1985, P. 3.

  • Deposit

    MINER NEWSPAPER, VOL 8, NO. 10, MAY 20-JUNE 2, 1985, P. 13.

  • Deposit

    METAL BULLETIN MONTHLY, JUNE 1989, PP. 64-65.

  • Deposit

    METALS WEEK, 2/10/92, P. 9.

  • Deposit

    AUSTRALIAN BASE METALS REPORT, 25 OCT., 1991.

  • Deposit

    REGISTER OF AUSTRALIAN MINING, 1988/89, P. 240, 434.

  • Deposit

    CRA LTD., AR, 1986.

  • Deposit

    PINCOCK, ALLEN & HOLT, INC., COBAR REPORT.

  • Deposit

    METALS WEEKLY, 1/4/93, P. 4.

  • Deposit

    REGISTER OF AUSTRALIAN MINING, 1994/95, P. 216, 217.

  • Deposit

    THE AUSTRALASIAN INSTITUTE OF MINING AND METALLURGY,

  • Deposit

    "AUSTRALASIAN MINING AND METALLURGY", THE SIR MAURICE

  • Deposit

    MAWBY MEMORIAL VOLUME, SECOND EDITION, VOLUME 1, EDITED

  • Deposit

    BY J.T. WOODCOCK AND J.K. HAMILTON, PP. 602-606,

  • Deposit

    646-648.

  • Deposit

    DEPARTMENT OF MINERAL RESOURCES, GEOLOGY AND GEOPHYSICS,

  • Deposit

    COBAR GROUP & DEPOSIT: 3 GREAT COBAR, IN BMR DATAFILE

  • Deposit

    (MINDEP) GOLD DEPOSITS OF NEW SOUTH WALES, 1989,

  • Deposit

    P. COBAR GROUP 1-10, 3.1-3.5.

  • Deposit

    CRA LTD., 1993 ANNUAL REPORT, P.63,64.

  • Deposit

    AMERICAN METAL MARKET, V 103/N 115, 6/15/95, P.2.

General comments

Subject category Comment text
Deposit COBAR MINES PROPIETARY LTD PRODUCES CU ZN PB BY MINING UNDERGROUND WITH A 3 SHAFT OPEN-STOPING MECHANIZED CUT AND FILL METHOD USING HAULAGE TRUCKS AND BELTS TO TRANSPORT THE ORE. THE MINE OPENED IN 1965. ACTUAL TONNAGE IS 658,130 METRIC TONS. MINERALIZATION OCCURS AS COPPER,LEAD,ZINC AND IRON SULFIDES. DAILY ORE CAPACITY EQUALS DAILY MILL CAPACITY AT 2500 TPD THE EXTRACTION METHOD IS FLOTATION. THE GENERAL MANAGER OF THE OPERATION IS J.T.BRADY. DURING THE YEAR ENDING JUNE 1969 626,530 MT OF COPPER AND COPPER/ZINC ORE WERE RAISED FROM THE MINE. 186,478 MT OF COPPER/ZINC ORE WERE TREATED ASSAYING 1.2% COPPER AND 4.7% ZINC AND 1.8% LEAD. 3839 MT OF PB CONC WERE PRODUCED CONTAINING 47.1% LEAD. ALL THE PB CONC WAS SMELTED TO BULLION AT COCKLE CREEK. IN ADDITION 44,296 MT OF CU CONC. AND 11395 MT OF ZINC CONC. WERE RECOVERED. THE MINE IS OPERATING WITH ADEQUATE PROVEN RESERVES THEREFORE NO EXPLORATION IS NEEDED. TOTAL CAPITAL COST FOR THE MINE IS $28 MILLION. COPPER CONCENTRATES ARE ASSUMED TO BE SENT TO THE ELECTROLYTIC REFINING AND SMELTING CO. OF AUSTRALIA LTD. AT PORT KEMBLA,NEW WALES BY TRAIN (760 KM.). THE NO.1 SHAFT WAS EXTENDED FROM 397M TO 1006M IN 1974. THE NO.2 SHAFT WOULD HAVE TO BE EXTENDED FROM 618M TO 1006M IN 1981 TO PREPARE FOR MINING THE ORE BETWEEN THE 540M LEVEL AND THE 1006M LEVEL. DRIFTS,RAISES,STOPES, AND CORE DRILLINGWOULD ALSO NEED TO BE DEVELOPED IN 1981. MINING BEGAN IN JUNE OF 1965 AT C.S.A. AND THEREFORE THE EQUIPMENT WAS REPLACED IN 1974. THE ORIGINAL MINE PLANT IS ADEQUATE FOR CONTINUED MINING. AS OF JANUARY 1,1981 RECOVERABLE RESOURCE AT 75% POB- ABILITY IS 26,647,498 MT,ASUMING OPEN STOPE UNDERGROUND MINING. 500,000 MT OF ORE ARE MINED THE FIRST 5 YRS,AND 700,000 MT OF ORE WILL BE MINED THEREAFTER. THE MINE OPERATES 260 DAYS PER YEAR. MINE AND MILL OPERATING COST IS $24.59/MT. THE MILL OP COST IS $8.30/MT. COPPER SMELTER OPERATING CHARGE AS OF 1 JAN. 80 IS $0.10 PER POUND. ZINC SMELTER OP CHARGE ( 1/80) IS $180.00/MT CONC. LEAD SMELTER OP CHARGE (1979) IS $94.62/MT CONC. COPPER REFINERY OP CHARGE (1/80) IS $0.065/LB CU. LEAD REFINERY OP CHARGE (1979) IS $154.83/MT CONC. LEAD AND ZINC CONCENTRATES ARE ASSUMED TO BE SENT TO THE SULFIDE CORP. PTY. LTD. (CRA) AT BOOLAROO,NEW SOUTH WALES BY RAIL A DISTANCE OF APPROX. 800KM.

Reporter information

Type Date Name Affiliation Comment
Reporter 07-MAR-1997 Porter, Kenneth E. 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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