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Coirmotibo Mine

Producer in Suriname 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. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10280033
MAS/MILS ID 3150200040
Record type Site
Current site name Coirmotibo Mine
Alternate or previous names Moengo Deposit, Begi Gado Mine, Jones Mill Mine, Tapira Mine

Geographic coordinates

Point of reference Town
Geographic coordinates: -54.41592, 5.60129 (WGS84)
Elevation 100
Location accuracy 500(meters)

Site location context

Political divisions (FIPS codes)

Suriname(country)

South America(continent)

Land(continent)

Geographic areas

Country
Suriname

Commodities

Commodity Importance
Aluminum Critical Primary

Materials information

Materials Type of material
Gibbsite Unknown

Nearby scientific data

Town (1) -54.41592, 5.60129
ListMap

Economic information

Ore body information

  • Thickness 3M
    Depth to top 1.5M
    Field Value
    MAS Matrix # 1
    MAS Column # 3
    Type of Orebody #1 LATERITE
    Shape of Orebody #1 TABULAR
    Type of Orebody #2 REPLACEMENT
    Shape of Orebody #2 DOMELIKE
    Shape of Orebody #3 MANTLELIKE
    Primary mode of Origin RESIDUAL CONCENT
    Secondary mode of Origin OXIDATION
    Primary Ore Control LITHOLOGY
    Secondary Ore Control OTHER
    Degree of Wallrock Alter. NONE
    Avg. Thick. Unconsol. Mat. 11
    Date of Last Modification 900713
  • Area 1500HA
    Field Value
    Total Surface Area (HA) 1500
    Date of Last Modification 910418

Comments on the geologic information

  • GANGUE MINERALS INCLUDE SILICA,IRON OXIDES AND CLAYS.
  • THE TAMBAREDJO FORMATION IS DIVIDED INTO FOUR OTHER MINOR FORMATIONS; BEGINNING WITH THE OLDEST, THEY ARE; LOWER COESEWIJNE, UPPER COESEWIJNE, COROPINA AND THE DEMERARA FORMATIONS. THE CALCUTTA FORMATION IS DIVIDED INTO THE LOWER COESEWIJNE FORMATION, THE BAUXITE ORE LAYER, WHICH OVERLIES THE ONVERDACHT FORMATION.

Economic information about the deposit and operations

Operation type Surface
Development status Producer
Commodity type Metallic
Significant Yes
Year of first production 1992

Mining district

District name Moengo District

Mineral rights holdings

Type of mineral rights Minerals Only

Land status

Ownership category Private

Ownership information

  • Type Owner-Operator
    Owner Surinam Aluminum Co. (Suralco)
    Interest 100
    Home office Surinam
    Year 1993

Comments on the ownership information

  • SURALCO IS A WHOLLY OWNED SUBSIDIARY OF ALUMINUM CO. OF AMERICA.

Production statistics

  • Year 1980
    Description Bauxite Ore 2100000 Mtpy
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Aluminum Aluminum 2100000mt
  • Year 1981
    Description Bauxite Ore 2100000 Mtpy
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Aluminum Aluminum 2100000mt
  • Year 1982
    Description Bauxite Ore 1100000 Mtpy
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Aluminum Aluminum 1100000mt
  • Year 1983
    Description Bauxite Ore 1100000 Mtpy
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Aluminum Aluminum 1100000mt
  • Year 1984
    Description Bauxite Ore 1320000 Mtpy
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Aluminum Aluminum 1320000mt
  • Year 1985
    Description Bauxite Ore 1698000 Mtpy
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Aluminum Aluminum 1698000mt
  • Year 1986
    Description Bauxite Ore 1917000 Mtpy
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Aluminum Aluminum 1917000mt
  • Year 1987
    Description Bauxite Ore 383000 Mtpy
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Aluminum Aluminum 383000mt

Comments on the reserve resource information

  • THIS IS GOLDER ASSOCIATES RESERVE/RESOURCE ESTIMATE FROM THE 1980-1981 ALUMINUM CONTRACT. THIS IS THE RESERVE/RESOURCE ESTIMATE FOR THE 1987 ALUMINUM UPDATE STUDY. BASED ON 1985 ESTIMATE BY PETERSON, MINUS PRODUCTION.
  • PARAMARIBO ON OLD ADIT. MOENGO MINE DEPLETED; REPLACED BY COIRMOTIBO IN 1992.

Workings at the site

  • Type of workings Surface
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method STRIP-LEVEL
    Avg. Overburden Thickness 11
    Primary Material Cover SAND, SILT
    Percentage 100
    Hardness of Ore HARDPAN
    Capacity 9200
    Capacity Units MT ORE/DAY
    Operating Days per Year 250
    Operating Shifts per Day 3
    Year of Information 1987

Comments on other economic factors

  • ALL MILL CONSTRUCTION COSTS ARE PRE-1965.

Reference information

Bibliographic references

  • Deposit

    ALEVA, G.J.J., BAUXITIC AND OTHER DURICRUSTS IN SURINAM: A

  • Deposit

    REVIEW, GEOLOGIC EN MIJIBOW, VOL. 58, 1979, P. 321-336.

  • Deposit

    ENGINEERING AND MINING JOURNAL, SURALCO: DOWNSTREAM INTE-

  • Deposit

    GRATION IN ALUMINUM, NOV. 1977, P. 87-93.

  • Deposit

    MINING INTERNATIONAL YEARBOOK, 1978, P.533.

  • Deposit

    MOSES, J.H., AND W.D. MICHELL. BAUXITE DEPOSITS OF BRITISH

  • Deposit

    GUIANA AND SURINAM IN RELATION TO UNDERLYING UNCONSOLI-

  • Deposit

    DATED SEDIMENTS SUGGESTING TWO-STEP ORIGIN: ECONOMIC

  • Deposit

    GEOLOGY, VOL. 58, 1963, P. 250-261.

  • Deposit

    POLLACK,H.R., GEOLOGY AND EXPLORATION OF BAUXITE IN SURINAM:

  • Deposit

    JOURNAL OF THE GEOLOGICAL SOCIETY OF JAMAICA;

  • Deposit

    PROCEEDINGS OF BAUXITE SYMPOSIUM, NO. IV, JUNE 23-26,1980

  • Deposit

    FACT SHEET, SURINAME ALUMINUM CONPANY.

  • Deposit

    MINING JOURNAL, MARCH 31,1989, "INDUSTRY IN ACTION"

  • Deposit

    "DEVELOPMENT", P. 244.

  • Deposit

    MINING JOURNAL, MAY 5, 1989, "BILLITON-HIDDEN FORCE", P, 349

  • Deposit

    -350.

  • Deposit

    LAML, AUGUST 15, 1988, P 4-5.

  • Deposit

    METALS WEEK, APRIL 3, 1989, P2.

  • Deposit

    LAML, NOVEMBER 23, 1989 P3.

  • Deposit

    IBA REVIEW- OCTOBER-DECEMBER, 1989, P10.

  • Deposit

    LAML, SEPTEMBER 18, 1987, P5.

  • Deposit

    AMERICAN METAL MARKET, NOVEMBER 18, 1987, P8.

  • Deposit

    E/MJ NOVEMBER 1977, PP, 94-96.

General comments

Subject category Comment text
Deposit WORKERS ARE STRIKING AT ALL SURALCO OPERATIONS BECAUSE OF WAGE DISAGREEMENTS. AFTER THE GOVERNMENT APPROVED A NEW EXCHANGE RATE FOR BAUXITE PRODUCERS IN JANUARY 1993, ENERGY AND GASOLINE PRICES HAVE SOARED, THE LATTER BY AROUND 500%. WORKERS ARE ASKING FOR A 100% RAISE.

Reporter information

Type Date Name Affiliation Comment
Reporter 23-SEP-96 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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