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Dutchess Mine

Producer in Queensland, Australia with commodity Phosphorus-Phosphates
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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 10256198
MAS/MILS ID 6020350001
Record type Site
Current site name Dutchess Mine
Alternate or previous names Duchess, Duchess/Ardmore, Phoshpate Hill, Duchess and Ardmore, Ardmore

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: 139.96556, -21.87998 (WGS84)
Elevation 396
Location accuracy 5000(meters)

Site location context

Political divisions (FIPS codes)

Queensland(province)

Australia(country)

Australia(continent)

Land(continent)

Geographic areas

Country State
Australia Queensland

Commodities

Commodity Importance
Phosphorus-Phosphates Primary

Materials information

Materials Type of material
Apatite Unknown
Collophane Unknown

Nearby scientific data

Ore Body (1) 139.96556, -21.87998
ListMap

Economic information

Ore body information

  • Thickness 11M
    Area 18000HA
    Field Value
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 TABULAR
    Primary mode of Origin SEDIMENTATION
    Primary Ore Control LITHOLOGY
    Secondary Ore Control BEDDING
    Degree of Wallrock Alter. UNKNOWN
    Type of Wallrock Alter. #1 UNKNOWN
    Total Surface Area (HA) 18000
    Date of Last Modification 830331

Economic information about the deposit and operations

Operation type Surface
Development status Producer
Commodity type Non-metallic
Significant Yes
Discovery year 1966
Mining method Strip-Level
Year of first production 1975
Milling method Sizing

Comments on exploration

  • OTHER DRILLING: DIAMOND DRILL.

Mining district

District name Phosphate Hill

Ownership information

  • Type Owner-Operator
    Owner Western Mining Corp. Holdings Ltd.
    Interest 83.5
    Home office Australia
    Year 1987

Production statistics

  • Year 1975
    Description High Grade 134000 Mt Ore/Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Phosphorus-Phosphates Phosphorus 134000mt
  • Year 1976
    Description High Grade 300000 Mt Ore/Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Phosphorus-Phosphates Phosphorus 300000mt
  • Year 1977
    Description High Grade 540000 Mt Ore/Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Phosphorus-Phosphates Phosphorus 540000mt
  • Year 1978
    Description High Grade 248000 Mt Ore/Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Phosphorus-Phosphates Phosphorus 248000mt

Reserves and resources

  • Type In-situ
    Estimate year 1980
    Measured 504000000mt ore
    Demonstrated 504000000mt ore
    Total resources 504000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Phosphorus-Phosphates P2O5 18.3 wt-pct Phosphorus Major 1980
  • Type In-situ
    Estimate year 1980
    Indicated 914000000mt ore
    Demonstrated 914000000mt ore
    Total resources 914000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Phosphorus-Phosphates P2O5 16.9 wt-pct Phosphorus Major 1980
  • Type In-situ
    Estimate year 1989
    Indicated 1400000000mt ore
    Demonstrated 1400000000mt ore
    Total resources 1400000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Phosphorus-Phosphates P2O5 22 wt-pct Phosphorus Major 1989

Comments on the reserve resource information

  • LARGE RESOURCE AVAILABLE.
  • GRADE IS WEIGHTED AVERAGE. M9C4=M1C1

Workings at the site

  • Type of workings Surface
    Area 18000HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method STRIP-LEVEL
    Primary Material Cover SAND, SILT
    Secondary Material Cover HARDPAN
    Hardness of Ore M-HARD ROCKS
    Capacity 741
    Capacity Units MT ORE/DAY
    Operating Days per Year 270
    Operating Shifts per Day 3
    Year of Information 1985
  • Type of workings Surface
    Area 18000HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 2
    Status of Mining Method PROPOSED
    Mining Method STRIP-LEVEL
    Primary Material Cover SAND, SILT
    Secondary Material Cover QUICKSAND
    Hardness of Ore M-HARD ROCKS
    Capacity 6852
    Capacity Units MT ORE/DAY
    Operating Days per Year 270
    Operating Shifts per Day 3
    Year of Information 1985

Reference information

Bibliographic references

  • Reserve-Resource

    ANONYMOUS, THE PHOSPHATE DEPOSITS OF AUSTRALIA: PHOS. &

  • Reserve-Resource

    POT., VOL. 110, DECEMBER 1980.

  • Reserve-Resource

    REGISTER OF AUSTRALIAN MINING, 1988/89, PP. 373-374.

  • Reserve-Resource

    PHOSPHOROUS & POTASSIUM, NO. 163, SEPT/OCT 1989, PP. 16-17.

  • Deposit

    ANONYMOUS, THE PHOSPHATE DEPOSITS OF AUSTRALIA: PHOS.

  • Deposit

    &. POT., VOL. 110, DECEMBER 1980.

  • Deposit

    AUSTRALIA'S DUCHESS PHOSPHATE MINE DUE ON STREAM AT

  • Deposit

    1 MILLION TPY, E. & M. J., MARCH 1977.

  • Deposit

    IVATE STUDY. SECTION1. 23.2PHOSPHATE SECTION, 1976-77.

  • Deposit

    COOK, P. J., AUSTRALIAN PHOSPHATE ROCK DEPOSITS AND

  • Deposit

    OCCURRENCES, FERT. MIN. POT. IN ASIA & PACIFIC, HAWAII 1979.

  • Deposit

    COOK, PETER J., PETROLOGY AND GEOCHEMISTRY OF THE

  • Deposit

    PHOSPHATE DEPOSITS OF NORTHWEST QUEENSLAND, AUSTRALIA,

  • Deposit

    ECON. GEOL., VOL. 67, 1972, P. 1193-1213.

  • Deposit

    COOK, PETER J. AND SHERGOLD, J. H., PROTEROZOIC AND CAMBRIAN

  • Deposit

    PHOSPHORITE OF ASIA AND AUSTRALIA - A PROGRESS REPORT,

  • Deposit

    HAWAII 1979.

  • Deposit

    FLEMING, M. R., STONE, A. M. AND ROMENSKY, G., AUTOMATIC

  • Deposit

    TRAIN LOADING OF ROCK PHOSPHATE AT PHOSPHATE HILL:

  • Deposit

    AUSTRALASIAN I. M. & M. CONFERENCE, QUEENSLAND, SEPT. 1978.

  • Deposit

    HOWARD, PETER F., EXPLORATION FOR PHOSPHORITE IN AUSTRALIA -

  • Deposit

    A CASE HISTORY: ECON. GEOL., VOL. 67, 1972, P. 1180-1192.

  • Deposit

    ROGERS, J. K. AND CRASE, N. J., THE PHOSPHATE HILL ROCK

  • Deposit

    PHOSPHATE DEPOSIT, NORTHWEST QUEENSLAND, AUSTRALIA - AN

  • Deposit

    OUTLINE OF GEOLOGICAL DEVELOPMENT, PROC. FERT. RAW MATERIALS

  • Deposit

    WORKSHOP, HONOLULU 1979, JUNE 1980.

  • Deposit

    RUSSELL, R. T. AND TRUEMAN, N. A., THE GEOLOGY OF THE

  • Deposit

    DUCHESS PHOSPHATE DEPOSITS, NORTHWESTERN QUEENSLAND,

  • Deposit

    AUSTRALIA: ECON. GEOL., VOL. 66, 1971, P. 1186-1214.

  • Deposit

    THOMSON, L. D. AND RUSSELL, R. T., DISCOVERY, EXPLORATION

  • Deposit

    AND INVESTIGATIONS OF PHOSPHATE DEPOSITS IN QUEENSLAND,

  • Deposit

    PROC. AUST. INT. MIN. MET., NO. 240, DECEMBER 1971.

  • Deposit

    MINING MAGAZINE, MAY 1975, NEW QUEENSLAND PHOSPHATE MINE ON

  • Deposit

    STREAM, P. 337.

  • Deposit

    MINING MAGAZINE MARCH 1976, PHOSPHATE PLANS.

  • Deposit

    PHOSPHOROUS & POTASSIUM, NO. 144, JULY/AUG 1986, P. 12.

  • Deposit

    REGISTER OF AUSTRALIAN MINING, 1987, PP. 324-325.

  • Deposit

    GREEN MARKETS, AUGUST 10, 1987, P. 8.

  • Deposit

    BRITISH SULPHUR CORPORATION, WORLD SURVEY OF PHOSPHATE

  • Deposit

    DEPOSITS, FIFTH ED., LONDON, 1987, PP211-213.

  • Deposit

    WALKER, GRAHM,"PROCESSING OPTIONS FOR LOW-GRADE PHOSPHATE

  • Deposit

    ORES", PAPER PRESENTED AT NINTH INDUSTRIAL MINERALS

  • Deposit

    INTERNATIONAL CONGRESS, 25-28 MARCH, 1990, INDUSTRIAL

  • Deposit

    MINERALS, PP. 16-22.

General comments

Subject category Comment text
Deposit RELATIVELY FLAT-LYING DEPOSIT. MAXIMUM DEPTH OF MINERALIZATION IS 150 METERS

Reporter information

Type Date Name Affiliation Comment
Reporter 24-SEP-96 Buckingham, David 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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