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  3. Mineral Resource Data System (MRDS)

Mount Isa Lead/Zinc

Producer in Queensland, Australia with commodities 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. Nearby scientific data
  7. Economic information about the deposit and operations
  8. Ownership information
  9. Production statistics
  10. Reserves and resources
  11. Workings at the site
  12. Links to other databases
  13. Bibliographic references
  14. Reporter information

Geologic information

Identification information

Deposit ID 10255757
MAS/MILS ID 6020350003
Record type Site
Current site name Mount Isa Lead/Zinc

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: 139.47888, -20.71344 (WGS84)

Site location context

Political divisions (FIPS codes)

Queensland(province)

Australia(country)

Australia(continent)

Land(continent)

Geographic areas

Country State
Australia Queensland

Commodities

Commodity Importance
Lead Primary
Silver Secondary
Zinc Critical Primary

Nearby scientific data

Ore Body (1) 139.47888, -20.71344
ListMap

Economic information

Economic information about the deposit and operations

Operation type Underground
Development status Producer
Commodity type Metallic
Significant Yes
Discovery year 1923
Mining method Filled Stopes - Inclined Cut and Fill
Year of first production 1931
Milling method Flotation

Ownership information

  • Type Operator
    Owner Mount Isa Mines Ltd.
    Home office Australia
    Year 1989
  • Type Owner
    Owner M. I. M. Holdings Ltd.
    Interest 100
    Home office Australia
    Year 1989

Production statistics

  • Year 1990
    Description Zinc Conc. Produced 163000 Mt Zinc Conc.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Conc. Zinc Zinc 163000mt
  • Year 1990
    Description Ore Milled 4400000 Mt Ore Milled
  • Year 1991
    Description Production 218000 Mt Zn Conc.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Conc. Zinc Zinc 218000mt
  • Year 1993
    Description Primary Smelter Capacity Lead Bullion 220000 Tpy
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Lead Lead 216524mt
  • Year 1996
    Description Zinc Concentrate Produced 203493 Mt Zinc Concentrate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Conc. Zinc Zinc 203493mt
  • Year 1996
    Description Production 4414000 Mt Ore Milled

Comments on the production information

  • FULL FINANCIAL YEAR-PRODUCTION INCREASE BY 18.8%/ORE TREATED ORE TREATED INCREASE BY 19.8%

Reserves and resources

  • Type In-situ
    Estimate year 1990
    Measured 47000000mt ore
    Demonstrated 47000000mt ore
    Total resources 47000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Zinc Zn 6.6 wt-pct Zinc Major 1990
    Lead Pb 5.4 wt-pct Lead Major 1990
    Silver Ag 135 g/mt Silver Minor 1990
  • Type In-situ
    Estimate year 1993
    Demonstrated 47000000mt ore
    Total resources 47000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Zinc Zn 6.6 wt-pct Zinc Major 1993
    Lead Pb 5.4 wt-pct Lead Major 1993
    Silver Ag 125 g/mt Silver Minor 1993

Comments on the reserve resource information

  • PAH 87 REPORT:47.6 MILLION MT AS OF MID-86 PAH PB/ZN 89 SHOWS 50 MILLION MT AS OF MID-88
  • TO BE SUPPLEMENTED BY HILTON MINE DUE TO DECLINING PROD.
  • MINE MILLED 4.4M MT OF ORE IN 1990 GRADING 5.18% PB, 6.34% ZN, 0.05% CU, AND 126 G/MT AG.

Workings at the site

  • Type of workings Underground
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method COMBINED METHODS
    Percent Recovery 88
    Capacity 15100
    Capacity Units MT ORE/DAY
    Operating Days per Year 305
    Year of Information 1989

Reference information

Bibliographic references

  • Production

    *CRU MONITOR, MAY 1992, P. 8.

  • Production

    *CRU QUARTERLY MARKET SERVICE, LEAD, JAN. 1994, P. 47.

  • Production

    CRU ZINC MONITOR-SEPTEMBER 1996

  • Reserve-Resource

    M.I.M. HOLDINGS LTD. 1990 ANNUAL REPORT

  • Reserve-Resource

    *CRU METAL MONITOR, ZINC, OCT. 1991, P. 7.

  • Reserve-Resource

    AME MINERAL ECONOMICS QUARTERLY MINE ANALYSIS, JUN 1993,

  • Reserve-Resource

    P. 38, 43, 48.

Reporter information

Type Date Name Affiliation Comment
Reporter 12-SEP-1996 Difrancesco, Carl A. 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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