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Observatoire

Occurrence in Department of Guiana [French Guiana], France 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. Mineral occurrence model information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Economic information about the deposit and operations
  11. Reserves and resources
  12. Links to other databases
  13. Bibliographic references
  14. Reporter information

Geologic information

Identification information

Deposit ID 10064912
MRDS ID TC39809
Record type Site
Current site name Observatoire
Alternate or previous names Montagne Observatoire

Geographic coordinates

Geographic coordinates: -51.75138, 4.2383 (WGS84)

Site location context

Political divisions (FIPS codes)

Department of Guiana [French Guiana](province)

France(country)

Europe(continent)

Land(continent)

Geographic areas

Country State
France Department of Guiana [French Guiana]

Comments on the location information

  • NEAR AND WEST OF MOUTH OF OUANARY RIVER.

Commodities

Commodity Importance
Aluminum Critical Primary

Materials information

Materials Type of material
Bauxite Ore
Gibbsite Ore

Mineral occurrence model information

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

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
    Stratigraphic age (youngest) Neoproterozoic

Nearby scientific data

(1) -51.75138, 4.2383
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Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Reserves and resources

  • Type In-situ
    Estimate year 1967
    Total resources 11337000mt ore
    Commodity Subtype Grade units Group Importance Year
    Aluminum Al2O3 47 wt-pct Aluminum Major 1967
  • Type In-situ
    Estimate year 1979
    Total resources 15000000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Aluminum Al2O3 40 wt-pct Aluminum Major 1979

Comments on the workings information

  • THREE DEPOSITS: KAW, OBSERVATOIRE, ISLAND OF CAYENNE RESERVES BELIEVED TO BE 25 MILLION TONS, 47% AL2O3, 2% SIO2, HOWEVER KAW HAS 42 MILLION TONS OF RESERVES AT 41.5% AL2O3 SO THIS NUMBER IS LOW.

Reference information

Bibliographic references

  • Deposit

    MIN. TRADE NOTES, VOL. 67, NO. 12, DEC. 1970, P. 3.

  • Deposit

    PATTERSON, S.H., 1967, BAUXITE RESERVES AND POTENTIAL ALUMINUM RESOURCES OF THE WORLD: U.S. GEOLOGICAL SURVEY BULLETIN 1228, P. 55-56.

  • Reserve-Resource

    PATTERSON (1967); BRGM (1979)

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1973 Bannigan, Jane L. U.S. Geological Survey
Updater 01-SEP-1993 Page, Norman J. U.S. Geological Survey

Beyond USGS

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

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