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  3. Mineral Resource Data System (MRDS)

Mc Arthur River

Prospect in Northern Territory*, 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. Materials information
  7. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Ownership information
  11. Reserves and resources
  12. Workings at the site
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10118497
MAS/MILS ID 6020250011
Record type Site
Current site name Mc Arthur River
Alternate or previous names Mcarthur River

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: 136.09897, -16.11374 (WGS84)

Site location context

Political divisions (FIPS codes)

Northern Territory*(province)

Australia(country)

Australia(continent)

Land(continent)

Geographic areas

Country State
Australia Northern Territory*

Commodities

Commodity Importance
Lead Secondary
Silver Secondary
Zinc Critical Primary

Materials information

Materials Type of material
Galena Unknown
Pyrite Unknown
Sphalerite Unknown

Nearby scientific data

Ore Body (1) 136.09897, -16.11374
ListMap

Economic information

Ore body information

  • Thickness 55M
    Length 1650M
    Width 1250M
    Area 128HA
    Field Value
    Type of Orebody #1 STRATIFORM
    Shape of Orebody #1 MASSIVE
    Type of Orebody #2 SEDIMENTARY
    Primary mode of Origin SEDIMENTATION
    Primary Ore Control BEDDING
    Degree of Wallrock Alter. SLIGHT
    Type of Wallrock Alter. #1 INTERM ARGILLIC
    Minimum Depth to Top 15
    Total Surface Area (HA) 128
    Date of Last Modification 830812

Economic information about the deposit and operations

Operation type Underground
Development status Prospect
Commodity type Metallic
Significant Yes
Discovery year 1955
Mining method Open Stope - Room and Pillar
Milling method Flotation

Ownership information

  • Type Owner-Operator
    Owner Mim Holdings Ltd.
    Interest 70
    Home office Australia
    Year 1993
  • Type Owner
    Owner Nippon Mining And Metals Co.
    Interest 15
    Home office Japan
    Year 1994
  • Type Owner
    Owner Marubeni Corp.
    Interest 5
    Home office Japan
    Year 1994
    First year 1993
  • Type Owner
    Owner Mitsubishi Materials Corp.
    Interest 5
    Home office Japan
    Year 1994
  • Type Owner
    Owner Mitsui And Co.
    Interest 5
    Home office Japan
    Year 1994

Comments on the ownership information

  • ASARCO INC. OWNS A 49 PERCENT INTEREST IN MIM HOLDINGS LTD. OWNERSHIP OF MCARTHUR RIVER THROUGH ANT MINERALS IS AS FOLLOWS: TOYOHA MINES CO. LTD. (SUBSID. NIPPON MINING AND METALS CO. LTD.) (15%); MITSUI AND CO. (5%); MITSUBISHI MATERIALS CORP. (5%); MARUBENI (3%: MARUBENI CORP. (2.4%); MARUBENI AUSTRALIA LTD. (0.6%)). *ANT MATERIALS CONSISTS OF THE JAPANESE PARTNERS NIPPON MINING (15%), MITSUI (5%), MITSUBISHI (5%), MARUBENI (3%).

Reserves and resources

  • Type In-situ
    Estimate year 1993
    Demonstrated 230000000mt ore
    Total resources 230000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Zinc Zn 9.2 wt-pct Zinc Major 1993
    Lead Pb 4.1 wt-pct Lead Minor 1993
    Silver Ag 41 g/mt Silver Minor 1993
  • Type In-situ
    Estimate year 1979
    Indicated 227000000mt ore
    Demonstrated 227000000mt ore
    Total resources 227000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Zinc Zn 9.1999 wt-pct Zinc Major 1979
    Lead Pb 4.1 wt-pct Lead Minor 1979
    Silver Ag 41 g/mt Silver Minor 1979
  • Type In-situ
    Estimate year 1991
    Measured 227000000mt ore
    Demonstrated 227000000mt ore
    Total resources 227000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Zinc Zn 9.2 wt-pct Zinc Major 1991
    Lead Pb 4.1 wt-pct Lead Minor 1991
    Silver Ag 41 g/mt Silver Minor 1991
  • Type In-situ
    Estimate year 1992
    Measured 47400000mt ore
    Demonstrated 47400000mt ore
    Total resources 47400000mt ore
    Commodity Subtype Grade units Group Importance Year
    Zinc Zn 15.7 wt-pct Zinc Major 1992
    Lead Pb 6.5 wt-pct Lead Minor 1992
    Silver Ag 66 g/mt Silver Minor 1992
  • Type In-situ
    Estimate year 1994
    Demonstrated 26600000mt ore
    Total resources 26600000mt ore
    Commodity Subtype Grade units Group Importance Year
    Zinc Zn 14 wt-pct Zinc Major 1994
    Lead Pb 6.2 wt-pct Lead Minor 1994
    Silver Ag 63 g/mt Silver Minor 1994

Comments on the reserve resource information

  • PAH PB/ZN 89 SHOWS 227 MILLION MT

Workings at the site

  • Type of workings Surface
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method OPEN PIT
    Avg. Bench Height (meters) 300
    Capacity 20000
    Capacity Units MT ORE/DAY
    Operating Days per Year 350
    Operating Shifts per Day 3
    Year of Information 1981
  • Type of workings Underground
    Overall depth 650M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Percent Recovery 80
    Capacity 10000
    Capacity Units MT ORE/DAY
    Operating Days per Year 350
    Operating Shifts per Day 3
    Year of Information 1981

Comments on other economic factors

  • DUE TO THE EXTREMELY FINE GRAIN SIZE OF THE MCARTHUR RIVER ORES AND THE INTIMATE INTERWEAVING OF THE ECONOMIC SULFIDES WITH PYRITE AND SILICA EXTREMELY FINE GRINDING IS REQUIRED WHICH GIVES RISE TO FLOTATION PROBLEMS. AT PRESENT, TESTWORK INDICATES BEST RESULTS FROM CONVENTIONAL FLOTATION PRODUCING SEPARATE LEAD AND ZINC CONCENTRATES.
  • UNDERGROUND MINING METHOD WOULD BE ROOM AND PILLAR OR CUT AND FILL. MINING OPERATION ENVISAGED AS BEING A 300 METER DEEP OPEN PIT ENCOMPASSING 100 MILLION METRIC TONS OF ORE (U.S. BUREAU OF MINES MAFO NOTES ON MCARTHUR RIVER) WITH UNDERGROUND MINING OF THE REMAINDER.

Reference information

Bibliographic references

  • Deposit

    *CRU MONITOR, ZINC, MAR. 1994, P. 8.

  • Ownership

    *METAL BULLETIN, THURS., 19 NOV. 1002, P.

  • Ownership

    "MARUBENI, A JAPANESE TRADING COMPANY...", ENGINEERING AND

  • Ownership

    MINING JOURNAL, APR 1993, P. 15.

  • Ownership

    MINING MAGAZINE, JAN 94, V. 170 N. 1, P. 30.

  • Reserve-Resource

    OEHLER, J.H. AND LOGAN R.G. MICROFOSSILS CHERTS, AND ASS-

  • Reserve-Resource

    OCIATED MINERALIZATION IN THE PROTEROZOIC MCARTHUR (H.Y

  • Reserve-Resource

    .C.) LEAD-ZINC-SILVER DEPOSIT, ECONOMIC GEOLOGY VOL. 72

  • Reserve-Resource

    NO. 8. 1977.

  • Reserve-Resource

    "MCARTHUR RIVER GETS CHANCE...", AUSTRALIAN MINING, MAY 94,

  • Reserve-Resource

    P. 22.

  • Reserve-Resource

    MINING JOURNAL. NOVEMBER 30, 1979.

  • Reserve-Resource

    MIM HOLDINGS LTD. ANNUAL REPORT, 1990

  • Reserve-Resource

    MINING JOURNAL, MAY 29, 1992, P. 392

  • Reserve-Resource

    *MINING ANNUAL REVIEW, 1993, P. 139.

  • Reserve-Resource

    *SKILLINGS MINING REVIEW, JAN. 22, 1994, P. 11.

  • Deposit

    ANNUAL REPORTS, MIM HOLDINGS, 1975, 1979.

  • Deposit

    AUSTRAILIAN MINING, JANUARY, 1979.

  • Deposit

    ENGINEERING AND MINING JOURNAL, INTERNATIONAL

  • Deposit

    DIRECTORY OF MINING AND MINERAL PROCESSING OPERATIONS,

  • Deposit

    OPERATIONS, MCGRAW-HILL, 1980.

  • Deposit

    LOUTHEAN, R. (ED), REGISTER OF AUSTRAILIAN MINING, 1980,

  • Deposit

    ROSS LOETHEAN PUBLISING, 1980.

  • Deposit

    MINING JOURNAL, OCTOBER 10, 1980.

  • Deposit

    MINING JOURNAL NOVEMBER 30, 1979.

  • Deposit

    MINING MAGAZINE, NOVEMBER, 1980.

  • Deposit

    MURRAY, W. J., MCARTHUR RIVER H.YH.C. LEAD-ZINC

  • Deposit

    AND RELATED DEPSOITS, N.T. IN ECONOMIC

  • Deposit

    GEOLOGY OF AUSTRALIA AND APUA NEW GUINEA,

  • Deposit

    1. METALS (ED. C. L. KNIGHT), PP. 329-338,

  • Deposit

    AUSTRAILIAN INSTITUTE OF MINING AND METALLURGY,

  • Deposit

    BELBOURNE, 1975.

  • Deposit

    NIGHTINGALE, W. G. (ED.), FINANCIAL TIMES MINING

  • Deposit

    INTERNATIONAL YEARBOOK, 1980, LONGMAN, LOVELON.

  • Deposit

    OEHLER, J. H. AND LOGAN R. G. MICROFOSSILS, CHERTS,

  • Deposit

    AND ASSOCIATED MINERALIZATION IN THE PROTEROZOIC

  • Deposit

    MCARTHUR (H. Y. C.) LEAD-ZINC-SILVER DEPOSIT,

  • Deposit

    ECONOMIC GEOLOGY , VOL. 72, NO. 8, 1977.

  • Deposit

    RIDGE, J. D., ANNOTATED BIBLIOGRAPHIES OF MINERAL

  • Deposit

    DEPOSITS IN AFRICA, ASIA, (EXCLUSIVE OF THE

  • Deposit

    U.S.S.R.) AND AUSTRALIA, PENNSYLVANIA STATE

  • Deposit

    UNIVERSITY, PERGAMON PRESS, NEW YORK, 1976.

  • Deposit

    PERSONAL COMMUNICATION BETWEEN PINCOCK, ALLEN & HOLT, INC.

  • Deposit

    PERSONNEL AND M.I.M. PERSONNEL ON MARCH 16 AND 17, 1981

  • Deposit

    PINCOCK, ALLEN & HOLT REPORT, 1986

General comments

Subject category Comment text
Deposit CONSTRUCTION IS ON SCHEDULE FOR THE 1995 START UP FOR THE MINE WHICH WILL PRODUCE 350,000400,000 TPY ZINC CONC AND 45,000 TPY LEAD. THE DEPOSIT DIPS EASTERLY UNDER THE RIVER AND FLATTENS BENEATH ITS EASTERN FLOOD PLAIN.

Reporter information

Type Date Name Affiliation Comment
Reporter 28-SEP-1994 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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