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Mt Saddleback Worsley

Producer in Western Australia, Australia with commodity Aluminum
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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. Land status
  13. Ownership information
  14. Production statistics
  15. Reserves and resources
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10280589
MAS/MILS ID 6020550031
Record type Site
Current site name Mt Saddleback Worsley
Alternate or previous names Saddleback, Mt Saddleback Deposit, Worsley Deposit, Marradong, Bunnings-Palmer, Quindanning

Comments on the site names

  • ALTERNATE NAMES 002 TO 005 ARE FOR ORE BLOCKS IN THE MT SADDLEBACK/WORSLEY MINING AREA.

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: 116.44931, -32.97929 (WGS84)
Elevation 590
Location accuracy 5000(meters)

Site location context

Political divisions (FIPS codes)

Western Australia(province)

Australia(country)

Australia(continent)

Land(continent)

Geographic areas

Country State
Australia Western Australia

Commodities

Commodity Importance
Aluminum Critical Primary

Materials information

Materials Type of material
Gibbsite Unknown

Nearby scientific data

Ore Body (1) 116.44931, -32.97929
ListMap

Economic information

Ore body information

  • Thickness 5.5M
    Depth to top 2.3M
    Field Value
    MAS Matrix # 1
    MAS Column # 3
    Type of Orebody #1 LATERITE
    Shape of Orebody #1 MANTLELIKE
    Type of Orebody #2 REPLACEMENT
    Shape of Orebody #2 TABULAR
    Primary mode of Origin RESIDUAL CONCENT
    Primary Ore Control LITHOLOGY
    Degree of Wallrock Alter. NONE
    Minimum Depth to Top 2.3
    Avg. Thick. Unconsol. Mat. 22.3
    Min. Thick. Unconsol. Mat. 2.3
    Date of Last Modification 900807
  • Area 3780HA
    Field Value
    Total Surface Area (HA) 3780
    Date of Last Modification 910418

Comments on the geologic information

  • LATERITIC BAUXITE IS DRAPED ON THE HILLY TOPOGRAPHY WITH THE THICKEST DEVELOPMENT ON THE SLOPES.

Economic information about the deposit and operations

Operation type Surface
Development status Producer
Commodity type Metallic
Significant Yes
Discovery year 1968
Year of first production 1984
Milling method Washing

Mining district

District name Darling Range

Mineral rights holdings

Type of mineral rights Private Lease
Type of mineral rights Minerals Only

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Renolds Australia Alumina Ltd. (Renolds Metal Co. Usa)
    Interest 50
    Year 1988
  • Type Owner
    Owner Shell Co. Of Australia Ltd. (Royal Dutch Shell Group)
    Interest 37.5
    Year 1988
  • Type Owner
    Owner Kobe Alumina Associates (Australia) Pty. Ltd.
    Interest 10
    Year 1988
  • Type Owner
    Owner Nissho Iwai Alumina Pty. Ltd.
    Interest 2.5
    Year 1988
  • Type Operator
    Owner Worsley Aluminium Co.
    Interest 100
    Year 1988

Comments on the ownership information

  • OTHER OWNERS: ALWEST PROPERTY LTD.

Production statistics

  • Year 1984
    Description Bauxite Ore 1368000 Mtpy
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Aluminum Aluminum 1368000mt
  • Year 1985
    Description Bauxite Ore 4066000 Mtpy
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Aluminum Aluminum 4066000mt
  • Year 1986
    Description Bauxite Ore 4251000 Mtpy
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Aluminum Aluminum 4251000mt

Reserves and resources

  • Type In-situ
    Estimate year 1970
    Measured 300000000mt ore
    Demonstrated 300000000mt ore
    Total resources 300000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Aluminum Al2O3 40 wt-pct Aluminum Major 1970
  • Type In-situ
    Estimate year 1987
    Measured 200000000mt ore
    Demonstrated 200000000mt ore
    Total resources 200000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Aluminum Al2O3 35 wt-pct Aluminum Major 1987

Comments on the reserve resource information

  • Q-MATRIX 1; COL 1 ARE RESERVE/RESOURCE ESTIMATES OF THE 1981 GOLDER DEPOSIT PROFILE REPORT. PROVEN RESERVS ARE 200MMT AT 32.2% AVAILABLE AL2O3. Q-MATRIX 1; COL 2 ARE THE RESERVE/RESOURCE ESTIMATES FORM A KAISER AL CONTRACT DEPOSIT PROFILE REPORT. THIS REPORT COULD NOT BE LOCATED. Q-MATRIX 1; COL 3 ARE THE RESERVE/RESOURCE ESTIMATES USED IN THE 1987 AL UPDATE STUDY. NO RESERVE/RESOURCE ESTIMATES WHERE ENTERED INTO Q-MATRIX 9.

Workings at the site

  • Type of workings Surface
    Area 3780HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method OPEN PIT
    Avg. Overburden Thickness 2.3
    Primary Material Cover SAND, GRAVEL
    Secondary Material Cover HARDPAN
    Hardness of Ore HARDPAN
    Capacity 12329
    Capacity Units MT ORE/DAY
    Operating Days per Year 365
    Operating Shifts per Day 3
    Year of Information 1987

Reference information

Bibliographic references

  • Reserve-Resource

    WORLD MINING, JUNE 1974, P66, "WESTERN AUSTRALIA... REYNOLDS

  • Reserve-Resource

    METAL INTERESTED IN AUSTRALIAN BAUXITE DESPITE SETBACKS".

  • Reserve-Resource

    AMM, NOV 27, 1970, P3, "AUSTRALIAN BAUXITE BOOM GETS PUSH".

  • Reserve-Resource

    REGISTER OF AUSTRALIAN MINING, 1987, P312.

  • Deposit

    ANON., 1973, ALUMINA REFINERY (WORSLEY) AGREEMEN ACT, NO. 67

  • Deposit

    OF 1973, WESTERN AUSTRALIAN GOVERNMENT PRINTER, WEMBLEY.

  • Deposit

    ANON. 1978, ALUMINA REFINERY (WORSLEY) AGREEMENT ACT, NO. 10

  • Deposit

    OF 1978, WESTERN AUSTRALIAN GOVERNMENT PRINTER, WEMBLEY.

  • Deposit

    ANON. 1978, WORSLEY ALUMINA PROJECT, ENVIRONMENTAL REVIEW

  • Deposit

    AND MANAGEMENT PROGRAMME, REYNOLDS AUSTRALIA ALUMINA

  • Deposit

    LIMITED, PERTH.

  • Deposit

    ANON. 1980, HUGE CONVEYOR BELT CONTRACT, AUSTRALIAN FINAN-

  • Deposit

    CIAL REVIEW, SYDNEY, AUG. 28.

  • Deposit

    JOHNSON, C., 1980, COURT LAUNCES WORSLEY REFINERY, THE

  • Deposit

    FINANCIAL AUSTRALIAN, SYDNEY, SEPT. 12.

  • Deposit

    OWEN, H.B., HARGREAVES, M.R., 1975, MOUNT SADDLEBACK BAUXITE

  • Deposit

    AREA, W.A., ECONOMIC GEOLOGY OF AUSTRALIA AND PAPUA NEW

  • Deposit

    GUINEA 1. METALS, MONOGRAPH SERIES NO. 5, AUSTRALASIAN

  • Deposit

    INSTITUTE OF MINING AND METALLURGY, MELBOURNE.

  • Deposit

    THE WALL STREET JOURNAL, TUESDAY, AUGUST 16, 1988. "REYNOLDS

  • Deposit

    METALS WILL FURTHER EXPAND GOLD MINE, INDICATING BID TO

  • Deposit

    DIVERSIFY", P 6.

  • Deposit

    MINING JOURNAL, AUGUST 19, 1988, PRODUCTION, SECOND EXPANS-

  • Deposit

    ION OF BODDINGTON, PP. 242,243.

  • Deposit

    AMC JOURNAL, SEPT. 1988, INDUSTRY NEWS - P 14. REYNOLDS TO

  • Deposit

    AUSTRALIA GOLD MINE.

  • Deposit

    INTERNATIONSL MINING, JULY, 1988, BODDINGTON - A LOW-COST

  • Deposit

    AUSTARALIAN GOLD MINE, P27-30.

  • Deposit

    REGISTER OF AUSTRALIAN MINING, 1987 P312.

  • Deposit

    MANING MAGAZINE, NOV. 74.

  • Deposit

    AMM, JULY 8, 1987, PP 1, 16.

  • Deposit

    MINING JOURNAL, AUGUST 28, 1987, P 164.

  • Deposit

    MINIMG JOURNAL, JULY 17, 1987, P 1, 38.

  • Deposit

    AL AUSTRALIA, "BODDINGTON GETS UNDERWAY".

  • Deposit

    E & MJ, NOV. 1983, "WORSLEY ALUMINA APPROACHES START-UP, P81

  • Deposit

    TO P??.

  • Deposit

    MINING MONTHLY, SEPT 1986, WRANGLES RESOLVED, ITS FULL STEAM

  • Deposit

    AHEAD, P32-36.

  • Deposit

    AUSTRALIA MINING, JULY 1978, P16, 27

  • Deposit

    RAYMOND NEWS, MARCH 4, 1985.

General comments

Subject category Comment text
Deposit PROPERTY REVIEWED 6/92. NO INFORMATION ADDED.

Reporter information

Type Date Name Affiliation Comment
Reporter 14-SEP-1995 Wilburn, David R. 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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