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  3. Mineral Resource Data System (MRDS)

Laverton

Prospect in Western Australia, Australia with commodities Phosphorus-Phosphates, REE, Tantalum
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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. Reserves and resources
  13. Workings at the site
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10133962
MAS/MILS ID 6020550119
Record type Site
Current site name Laverton
Alternate or previous names Mount Weld

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: 122.49919, -29.24617 (WGS84)
Location accuracy 10000(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
Phosphorus-Phosphates Primary
REE Critical Tertiary
Tantalum Critical Tertiary

Materials information

Materials Type of material
Apatite Unknown
Dolomite Unknown
Apatite Unknown

Nearby scientific data

Ore Body (1) 122.49919, -29.24617
ListMap

Economic information

Ore body information

  • Thickness 60M
    Length 4000M
    Width 4000M
    Depth to top 50M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 STOCKWORK
    Shape of Orebody #1 MASSIVE
    Type of Orebody #2 OTHER
    Primary mode of Origin RESIDUAL CONCENT
    Secondary mode of Origin MAGMATIC DIFFER
    Primary Ore Control IGNEOUS
    Secondary Ore Control CONTACT ZONE
    Degree of Wallrock Alter. UNKNOWN
    Type of Wallrock Alter. #1 DOLOMITIZATION
    Minimum Depth to Top 40
    Date of Last Modification 910311

Comments on the geologic information

  • THE MT. WELD DEPOSIT IS AN APATITE BEARING CARBONITITE WHICH INTRUDED INTO ARCHEAN SEDIMENTS DURING IGNEOUS ACTIVITIES 2 BN YEARS AGO. THE DEPOSIT IS CIRCULAR, APPROXIMATELY 3.5KM IN DIAMETER AND CONSISTS OF THE ORIGINAL CARBONATITE PLUG AT A DEPTH OVERLAIN BY RESIDUAL SEDIMENTS WHICH HAVE RESULTED FROM WEATHERING. SOME OF THE APATITE HAS DIS- SOLVED AND BEEN SUBSEQUENTLY PRECIPITATED AS COMPLEX ALUMINUM BEARING PHOSPHATE MINERALS. THESE ARE KNOWN AS CRANDALLITE, AND OCCUPY THE UPPER 20% OF THE DEPOSIT. A ZONE KNOWN AS THE CEMENTED ZONE OCCUPIES THE NEXT 20% OF THE DEPOSIT. CLEAR APATITE OCCUPIES THE REMAINING 60% OF THE DEPOSIT. DOLEMITE CONCENTRATION INCREASES WITH THE DEPTH IN THE ORE. SINCE CRANDALLITE AND DOLEMITE ARE DELITERIOUS, THE BEST ORE OCCURES IN THE MIDDLE TWO- THIRDS OF THE PHOSPHATE ORE ZONE. A DOLERITE DYKE INTERSECTS THE DEPOSIT.

Economic information about the deposit and operations

Operation type Surface
Development status Prospect
Commodity type Both
Significant No
Discovery year 1985
Mining method Open Pit
Milling method Flotation

Mining district

District name Kalgoorlie

Ownership information

  • Type Owner
    Owner Csbp And Farmers Ltd.
    Home office Australia
    Year 1989

Reserves and resources

  • Type In-situ
    Estimate year 1990
    Inferred 250000000mt ore
    Total resources 250000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Phosphorus-Phosphates P2O5 18 wt-pct Phosphorus Major 1990
  • Type In-situ
    Estimate year 1989
    Indicated 250000000mt ore
    Inferred 250000000mt ore
    Total resources 250000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Phosphorus-Phosphates P2O5 18 wt-pct Phosphorus Major 1989

Workings at the site

  • Type of workings Surface
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method OPEN PIT
    Avg. Overburden Thickness 50
    Primary Material Cover SAND, GRAVEL
    Capacity 5784
    Capacity Units MT ORE/DAY
    Operating Days per Year 360
    Operating Shifts per Day 3
    Year of Information 1985

Reference information

Bibliographic references

  • Reserve-Resource

    PHOSPHOROUS AND POTASSIUM, NO 169, SEPTEMBER/OCTOBER, 1990

  • Reserve-Resource

    PP.34-35.

  • Reserve-Resource

    DUNCAN, R.K. AND WILLETT, G.C.,"MOUNT WELD CARBONATITE",

  • Reserve-Resource

    GEOLOGY OF THE MINERAL DEPOSITS OF AUSTRALIA AND PAPUA

  • Reserve-Resource

    NEW GUINEA, V.1, VICTORIA, 1990, PP. 591-597.

  • Deposit

    GREEN MARKETS, MARCH 31, 1986, PP 1,7.

  • Deposit

    PHOSPHOROUS AND POTASSIUM, NO 144. JULY/AUGUST 1986, P12, 14

  • Deposit

    REGISTER OF AUSTRALIAN MINING, 1987. PP 324-326.

  • Deposit

    REGISTER OF AUSTRALIAN MINING, 1988/89. P 375.

  • Deposit

    MINING JOURNAL. JANUARY 27, 1989, P.60.

  • Deposit

    MURPHY, W.J.," MOUNT WELD PHOSPHATE PROJECT". PAPER

  • Deposit

    PAPER PRESENTED AT IFA REGIONAL FERTILIZER CONFERENCE,

  • Deposit

    CAIRNS, AUSTR. OCTOBER 9-13, 1989. 24PP.

  • Deposit

    NOTHOLT, A.J.G. ET AL, "AUSTRALIA, NEW ZEALAND AND OCEANIA,

  • Deposit

    INTRODUCTION",PHOSPHATE DEPOSITS OF THE WORLD, V.2,

  • Deposit

    CAMBRIDGE UNIVERSITY PRESS, CAMBRIDGE, 1989, PP.525-527.

  • Deposit

    WALKER, GRAHM, "PROCESSING OPTIONS FOR LOW GRADE PHOSPHATE

  • Deposit

    ORES", PAPER PRESENTED AT 9TH INDUSTRIAL MINERALS

  • Deposit

    INTERNATIONAL CONGRESS, MARCH 25-28, 1990. PP 16-22.

  • Deposit

    GEOLOGICAL SURVEY OF WESTERN AUSTRALIA, "AN OVERVIEW OF

  • Deposit

    MINERALS AND ENERGY IN WESTERN AUSTRALIA", APRIL 1990,

  • Deposit

    P.24.

  • Deposit

    PHOSPHOROUS AND POTASSIUM, NO.169. SEPTEMBER/OCTOBER 1990

  • Deposit

    PP.34-35.

Reporter information

Type Date Name Affiliation Comment
Reporter 29-DEC-94 Fantel, Richard J. 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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