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Akjoujt

Past Producer in Mauritania with commodities Copper, Gold, Silver
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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. Production statistics
  12. Reserves and resources
  13. Workings at the site
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10232179
MAS/MILS ID 7410000001
Record type Site
Current site name Akjoujt

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -14.58184, 19.50029 (WGS84)
Location accuracy 1000(meters)

Site location context

Political divisions (FIPS codes)

Mauritania(country)

Geographic areas

Country
Mauritania

Commodities

Commodity Importance
Copper Primary
Gold Secondary
Silver Secondary

Materials information

Materials Type of material
Atacamite Unknown
Chalcopyrite Unknown
Chrysocolla Unknown
Copper Unknown
Cuprite Unknown
Dioptase Unknown
Goethite Unknown
Hematite Unknown
Limonite Unknown
Magnetite Unknown
Malachite Unknown
Pyrrhotite Unknown
Tenorite Unknown

Nearby scientific data

Ore Body (1) -14.58184, 19.50029
ListMap

Economic information

Ore body information

  • Strike N45E
    Dip 10W
    Thickness 500M
    Length 300M
    Width 75M
    Depth to top 200M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 LENTICULAR
    Primary mode of Origin SEDIMENTATION
    Primary Ore Control UNKNOWN
    Degree of Wallrock Alter. UNKNOWN
    Type of Wallrock Alter. #1 UNKNOWN
    Strike And Dip N45E:10W
    Avg. Thick. Unconsol. Mat. 0
    Min. Thick. Unconsol. Mat. 0
    Date of Last Modification 811111

Comments on the geologic information

  • OUTCROP OF DEPOSIT CONSISTS OF A PAIR OF HILLS (EAST+WEST GUELB MOGHREIN. OXIDIZED ORE ENDS 30M BELOW SURFACE OF PLAIN SURROUNDING HILLS. ORE BODY IN FORM OF A"THICK" BED WITH"GENTLE DIP TO THE SW (TENDENCY FOR ORE BODY TO" "FINGER" IN DEPTH.
  • A THIRD MINERAL PRESENT IS AN FE-MG CARBONATE (NAME UNKNOWN). NE OF NOUAKCHOTT. STATUS OF AKJOUJT:OP MINE+TORCO-PROCESS MILL OPENED 1971, CLOSED MID-1978 AFTER INCURRING LOSSES DURING ALL YEARS OF OPERATION.1977 RESULTS:590,175 MT ORE(ESTIMATE) AT 1.88%CU (ESTIMATED)TO PRODUCE 9,431 MT CU, 688 KG AU+982 KG AG-LOST$13,000,000. STUDY SUPPOSEDLY BEING MADE AT PRESENT TIME REGARDING MINE+MILL RENOVATIONS FOR TREATING SULPHIDE ORE.

Economic information about the deposit and operations

Operation type Surface
Development status Past Producer
Commodity type Metallic
Significant No
Discovery year 1946
Mining method Open Pit
Year of first production 1970
Milling method Flotation

Ownership information

  • Type Operator
    Owner Guelb Moghrein Jv
    Home office Mauritania
    Year 1995
  • Type Owner
    Owner Soc. Arabe Des Mines D'Inchiri (Samin)
    Interest 50
    Home office Mauritania
    Year 1995
  • Type Owner
    Owner General Gold Resources Nl
    Interest 50
    Home office Australia
    Year 1995

Production statistics

  • Year 1971
    Description Cu Conc. 60% 600000 Metric Tons Ore/Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Conc. Copper Copper 600000mt 60wt-pct

Reserves and resources

  • Type In-situ
    Estimate year 1989
    Indicated 19000000mt ore
    Demonstrated 19000000mt ore
    Total resources 19000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 1.93 wt-pct Copper Major 1989
    Gold Au 1.2 g/mt Gold Minor 1989
  • Type In-situ
    Estimate year 1989
    Indicated 2500000mt ore
    Demonstrated 2500000mt ore
    Total resources 2500000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 4.5 g/mt Gold Minor 1989
  • Type In-situ
    Estimate year 1995
    Demonstrated 1000000mt ore
    Total resources 1000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 2 wt-pct Copper Major 1995
    Gold Au 1.8 g/mt Gold Minor 1995
  • Type In-situ
    Estimate year 1995
    Demonstrated 11000000mt ore
    Total resources 11000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 1.4 wt-pct Copper Major 1995
    Gold Au 1 g/mt Gold Minor 1995
  • Type In-situ
    Estimate year 1989
    Indicated 19000000mt ore
    Demonstrated 19000000mt ore
    Total resources 19000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 1.93 wt-pct Copper Major 1989
    Gold Au 1.2 g/mt Gold Minor 1989

Comments on the reserve resource information

  • INT. MIN., 8/86, P75. (12/31/86) INT. MIN., 8/86, P75. (12/31/86)
  • IN 1977 AKJOUJT PRODUCED 688 KG AU+982 KG AG-FOR BYPRODUCT STUDIES A AG GRADE OF 1.38 (982/688=1.43*0.97 G/MT AU). IS ASSUMED.

Workings at the site

  • Type of workings Surface
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method BENCH (BERM)
    Avg. Overburden Thickness 90
    Primary Material Cover SAND, GRAVEL
    Secondary Material Cover M-HARD ROCKS
    Hardness of Ore M-HARD ROCKS
    Avg. Bench Height (meters) 10
    Max. Pit Slope (degrees) 40
    Capacity 3333
    Capacity Units MT ORE/DAY
    Preprod. Stripping Vol. 0
    Units of Production $/MT ORE
    Operating Days per Year 300
    Operating Shifts per Day 2
    Year of Information 1978

Reference information

Bibliographic references

  • Reserve-Resource

    MINING JOURNAL, 10-17-86, P 290.

  • Reserve-Resource

    METALS ECONOMICS GROUP STRATEGIC REPORT, P. 30 (SEPT.-

  • Reserve-Resource

    OCT. 1988).

  • Reserve-Resource

    INTERNATIONAL MINING, P. 75 (AUG. 1986).

  • Reserve-Resource

    GOLD GAZETTE, V 3/N 94, 4/10/95, P.18.

  • Deposit

    E/MJ INTERNATIONAL DIRECTORY OF MINING 1975, P 243

  • Deposit

    MINING MAGAZINE, SEPT 1976, TABLE B-1126 MINES ACCOUNTING FO

  • Deposit

    F ALL OUTPUT OTHER THAN COAL

  • Deposit

    BUREAU OF MINES MINERALS YEARBOOK, 1970-1976.

  • Deposit

    PLAN MINERAL DE LA REPUBLIGUE ISLAMIQUE DE MAURITANIE. 1978.

  • Deposit

    DIRECTOR DES MINES ET DE LA GEOLOGIE. REPUBLIQUE

  • Deposit

    ISLAMIQUE DE MAURITANIE, PP. 295-305.

  • Deposit

    METALS ECONOMICS GROUP, STRATEGIC REPORT: SEPTEMBER/OCTOBER

  • Deposit

    1988, P.30.

  • Deposit

    INTERMATIONAL MINING, 8-86, P 75.

  • Deposit

    MINING JOURNAL, 2-27-87, P 154.

  • Deposit

    STATE DEPT. TELEGRAM, 4-90,(9921)

General comments

Subject category Comment text
Deposit OPEN 1971, CONCENTRATOR FEED CAPACITY-3,600 TPD, EXTRACTION TORCO PROCESS AND FLOTATION THERE WERE A TOTAL OF 600 EMPLOYEES AT TIME OF CLOSING. PROBLEMS ENCOUNTERED DURING PROD.YEARS:EQUIPMENT FAILURES, LACK OF SKILLED LABOR,+DIFFICULT OPERATING CONDITIONS IN REMOTE DESERT AREA. TOTAL OP COST(PRIVATE REPORT COST-1973-UPDATED TO JAN.1978 USING U.S.INDICES): ITEM $/MT ORE $/LB CU MINING+MILLING 19.64 .553 SMELTING,ETC.* 9.72 .274 GEN.AMIN. 1.16 .033 TOTAL 30.52 .860 -BYPRODUCT - -.059 BREAKEVEN COST .801 DEBT SERVICE IN 1973 WAS $4.94/MT ORE-WHICH COMES TO $0.139/LB CU. *ASSUME TRANS.+REFINING INCLUDED. THE OLD OXIDE OPERATION (1971-77) DOES NOT EXIST ANYMORE. THE GOVT TOOK OVER THE DEPOSIT AND IS SETTING UP TOTALLY NEW OPERATION.

Reporter information

Type Date Name Affiliation Comment
Reporter 11-OCT-1995 Porter, Kenneth E. 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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