Djebel Onk

Producer in Annaba, Algeria with commodity Phosphorus-Phosphates
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. Mineral rights holdings
  11. Land status
  12. Ownership information
  13. Production statistics
  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 10183383
MAS/MILS ID 7210250001
Record type Site
Current site name Djebel Onk

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: 8.00175, 34.71592 (WGS84)
Elevation 835
Location accuracy 1000(meters)

Site location context

Political divisions (FIPS codes)

Annaba(province)

Algeria(country)

Africa(continent)

Land(continent)

Geographic areas

Country State
Algeria Annaba

Commodities

Commodity Importance
Phosphorus-Phosphates Primary

Materials information

Materials Type of material
Collophane Unknown
Dolomite Unknown
Kaolinite Unknown

Nearby scientific data

Ore Body (1) 8.00175, 34.71592

Economic information

Ore body information

  • Strike N80E
    Dip 02N
    Thickness 27.5M
    Width 1500M
    Depth to top 22.5M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 MASSIVE
    Primary mode of Origin SEDIMENTATION
    Primary Ore Control BEDDING
    Degree of Wallrock Alter. NONE
    Strike And Dip N80E:02N
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 22.5
    Min. Thick. Unconsol. Mat. 0
    Date of Last Modification 830324
  • Area 3000HA
    Field Value
    Total Surface Area (HA) 3000
    Date of Last Modification 910418

Economic information about the deposit and operations

Operation type Surface
Development status Producer
Commodity type Non-metallic
Significant Yes
Discovery year 1900
Mining method Open Pit
Year of first production 1966
Milling method Washing

Mineral rights holdings

Type of mineral rights Other

Land status

Ownership category Unknown

Ownership information

  • Type Owner-Operator
    Owner Sonerem (Government Owned)
    Interest 100
    Home office Algeria
    Year 1981

Comments on the ownership information

  • MINERAL HOLDINGS ARE GOVERNMENT OWNED

Production statistics

  • Year 1981
    Description Grade P2o5 Averages 24.6% 3600000 Metric Tons Ore/Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Phosphorus-Phosphates Phosphorus 3600000mt 25wt-pct

Comments on the reserve resource information

  • MINING RECOVERY = 90%

Workings at the site

  • Type of workings Surface
    Area 3000HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ACTUAL
    Mining Method OPEN PIT
    Percent Waste Rock 40.1
    Avg. Overburden Thickness 22.5
    Primary Material Cover SAND, GRAVEL
    Secondary Material Cover HARD ROCKS
    Hardness of Ore SAND, GRAVEL
    Capacity 10606
    Capacity Units MT ORE/DAY
    Operating Days per Year 330
    Operating Shifts per Day 2
    Year of Information 1985

Comments on other economic factors

  • APPROXIMATELY 75 PERCENT OF THE MINED ORE IS SENT THROUGH TWO DEDUSTING PLANTS. THE REMAINING 25 PERCENT PASSES THROUGH THE CALCINING PLANT. APPROXIMATELY 75 PERCENT OF THE MILL FEED IS PROCESSED IN TWO DEDUSTING PLANTS (37.5% TO EACH PLANT). THE REMAINING 25 PERCENT IS PROCESSED IN THE CALCINING PLANT.

Reference information

Bibliographic references

  • Reserve-Resource

    MINING MAGAZINE, VOL 121, NO 2, AUGUST 1969, P 120

  • Reserve-Resource

    MINING ANNUAL REVIEW, 1987, P 443

  • Deposit

    AFCEP QUARTERLY JOURNAL, ISSUE NO 3, SEPTEMBER 1980, P 36

  • Deposit

    BRITISH SULPHUR, WORLD SURVEY OF PHOSPHATE DEPOSITS, 1980,

  • Deposit

    P 141-144

  • Deposit

    DE VOTO, R H AND D N STEVENS(EDITORS), URANIFEROUS PHOSPHATE

  • Deposit

    RESOURCES AND TECHNOLOGY AND ECONOMICS OF URANIUM RECOVERY

  • Deposit

    FROM PHOSPHATE RESOURCES, UNITED STATES AND FREE WORLD,

  • Deposit

    VOL 1, P 343-345

  • Deposit

    GOUDJIL, L (SONAREM), THE PRESENT SITUATION AND OUTLOOK FOR

  • Deposit

    PHOSPHATE ROCK IN ALGERIA, PAPER PRESENTED TO THE RAW

  • Deposit

    MATERIALS COMMITTEE, I S M A, NOVEMBER 1979

  • Deposit

    PELITTI, E, WORLD PHOSPHATE STUDY DEPOSIT EVALUATION,

  • Deposit

    DECEMBER 1980

  • Deposit

    PHOSPHOROUS AND POTASSIUM, NO 15, JAN/FEB 1965, P 17-21

  • Deposit

    PHOSPHOROUS AND POTASSIUM, NO 77, MAY/JUNE 1975, P 17

  • Deposit

    PHOSPHOROUS AND POTASSIUM, NO 81, JAN/FEB 1976, P 15

  • Deposit

    PHOSPHOROUS AND POTASSIUM, NO 94, JAN/FEB 1979, P 15

General comments

Subject category Comment text
Deposit PRODUCTION IS 3 MMT PHOSROCK, OR 1.2MMT PROCESSED P2O5. RES: 500 MMT @ 24.3-27.5% P2O5. AVE. ORE DEPTH 22.5M; 1:1 STRIPPING RATIO. THE DJEBEL ONK DEPOSIT AREA =3,000 HECTARES

Reporter information

Type Date Name Affiliation Comment
Reporter 26-SEP-1995 Fantel, Richard J. U.S. Bureau of Mines

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.