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Bakhuis Mountains

Occurrence in Suriname with commodities Aluminum, Kaolin
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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. Mineral occurrence model information
  8. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Workings at the site
  13. Links to other databases
  14. Bibliographic references
  15. Reporter information

Geologic information

Identification information

Deposit ID 10064009
MRDS ID TC38154
Record type Site
Current site name Bakhuis Mountains
Alternate or previous names Adampada-Kabalebo

Geographic coordinates

Geographic coordinates: -56.74927, 4.35136 (WGS84)

Site location context

Political divisions (FIPS codes)

Suriname(country)

South America(continent)

Land(continent)

Geographic areas

Country
Suriname

Comments on the location information

  • NEAR ZORANTIJN RIVER; HEADWATERS OF KABALEBO RIVER. FRONTIER WITH GUYANA; LATITUDE-LONGITUDE VALUES FROM NIMA'S GEONAMES DATABASE ARE FOR BAKHUIS MOUNTAINS SURINAME.

Commodities

Commodity Importance
Aluminum Critical Primary
Kaolin Primary

Comments on the commodity information

  • REMNANT-TYPE

Materials information

Materials Type of material
Bauxite Ore
Gibbsite Ore
Hematite Gangue
Kaolinite Gangue
Quartz Gangue

Mineral occurrence model information

Model code 111
USGS model code 38b
Deposit model name Bauxite, laterite type

Nearby scientific data

(1) -56.74927, 4.35136
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Economic information

Ore body information

  • General form BLANKET
    Thickness 8M

Comments on the geologic information

  • REVEALED BY MAGNETIC HIGH; FORMED FROM DIVERSE ROCK TYPES. INTERMEDIATE COMPOSITION DOLENTE, GABBRO, CHARNOCKITE (FROM GRANULITE INTERLAYERED WITH QUARTZITE), CALC-SILICATE ROCK AND AMPHIBOLITE, INTRUSIVE GABBRO AND ULTRAMAFIC DEPOSITS RICHEST IN IRON IN UPPER METER OR TWO, WHERE IRON-OXIDE IS AS MUCH AS 40%. POLLOCK (1981, P. 282-283) DESCRIBES SECTION AS FOLLOWS: (1) TOPSOIL WITH AN ORGANIC LAYER, (2) FRAGMENTED CAVERNOUS HARDCAP WITH CLAYEY MATREIAL HAVING NEARLY VERTICAL BANDING, MOSTLY DARK BROWN, (3) PALE-YELLOW CLAY WITH REDDISH-BROWN LAYERS, (4) KAOLINITIC PEBBLES IN A BROWNISH-YELLOW CLAY MATRIX, (5) DARK-BROWN CLAY MATRIX WITH KAOLINITIC PEBBLES, (6) FRESH CRYSTALLINE ROCK. POLLOCK'S REPORT STATES THAT "THE MINERAL COMPOSITION OF THE BAUXITE IS ROUGHLY AS FOLLOWS: GIBBSITE 63%, KAOLINITE 5%, QUARTZ 1%, HEMATITE 8%, GOETHITE 18% AND 2% ANATASE.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Both
Significant No

Mining district

District name Kabalebo

Comments on the reserve resource information

  • REYNOLDS SURINAME MINES LTD. REPORTED 40 MILLION TONS PROVEN, PROBABLES, AND POSSIBLE, 18 MILLION TONS WITH 46-46% ALUMINA AND 1.5-3% SILICA IN ADAMPADA-KABALEBO REGION. THE BAUXITE RESERVES IN THE BAKHUIS MOUNTAINS WERE ESTIMATED BY DAHLKAMP AND KIRCHNER(1968, TABLE 2) AS FOLLOWS: 104 MILLION TONS CONTAINING 52.7% TOTAL AL2O3 AND 2.0% SIO2, 94 MILLION TONS CONTAINING 44.0% AL2O3 AND 3.9% SIO2, AND THE TOTAL OF BOTH GRADES WAS 198 MILLION TONS. AFTER BILLITON MAATSCHAPPIJ SURINAME COMPLETED A FEASIBILITY STUDY FOR GRASSALCO, THE SURINAME GOVERNMENT ALUMINUM COMPANY, IN 1979, ALEVA AND HILVERSUM (1984, P. 329, TABLE 2) ALSO ESTIMATED THE RESERVES IN A PORTION OF THE BAKHUIS MOUNTAINS (ROUGHLY 50% OF TOTAL AREA) TO BE 198 MILLION TONS. THIS BAUXITE HAS AN AVERAGE THICKNESS OF 4.6 M. IT CONTAINS AN AVERAGE OF 48.6% AL2O3 AND THE RECOVERY BY THE LOW TEMPERATURE PROCESS IS 42.8%; THE REACTIVE SIO2 IS 2.5%. A LITTLE MORE THAN HALF OF THE BAUXITE (104 MILLION TONS) IS CONSIDERED HIGHER
  • GRADE BAUXITE. THIS HIGHER GRADE BAUXITE HAS AN AVERAGE THICKNESS OF 3.9 M. IT CONTAINS 52.7% AL2O3, 2.0% SIO2, AND 14.8% FE2O3. THE AL2O3 AVAILABLE WHEN THE LOW -TEMPERATURE PROCESS IS USED IS 50.0%, AND THE REACTIVE SIO2 IS 1.8%.

Workings at the site

  • Type of workings Unknown
    Overall depth 1.15M

Reference information

Bibliographic references

  • Deposit

    ALEVA, G.J.J., 1975, THE BAUXITES OF THE GUYANA SHIELD AS A SOURCE FOR REFRACTORY GRADE RAW MATERIALS: INTERCERAM, V. 24, NO. 4, P. 259-61.

  • Deposit

    PATTERSON, S.H., KURTZ, H.F., JANE, C., AND NEELEY, C.L., 1986, WORLD BAUXITE RESOURCES: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 1076-B, 146 P.

  • Deposit

    KERSEN, J.F. VAN, 1956, BAUXITE DEPOSITS IN SURINAME AND DEMERARA (BRITISH GUIANA): LEIDSE GEOLOGISCHE MEDEDELINGEN, V. 21, PT. 1, P. 247-375.

  • Other Database

    CIMRI

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1993 Gray, Floyd U.S. Geological Survey

Beyond USGS

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

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