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Morro Dos Seis Lagos

Occurrence in Amazonas, Brazil with commodities Niobium (Columbium), REE
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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. Ownership information
  12. Reserves and resources
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10065477
MRDS ID TC40809
Record type Site
Current site name Morro Dos Seis Lagos

Geographic coordinates

Geographic coordinates: -66.41171, 0.63795 (WGS84)
Location accuracy 10000(meters)
Relative position 90 KM SW OF PICO DA NEBLINA.

Site location context

Political divisions (FIPS codes)

Amazonas(province)

Brazil(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Brazil Amazonas

Commodities

Commodity Importance
Niobium (Columbium) Critical Primary
REE Critical Primary

Materials information

Materials Type of material
Pyrochlore Ore

Analytical data

Result LESS THAN 0.4% TO GREATER THAN 8% NB2O5, LESS THAN 0.09% TO GREATER THAN 1.5% CE.

Mineral occurrence model information

Model code 24
USGS model code 10
Deposit model name Carbonatite

Host and associated rocks

  • Host or associated Associated
    Rock type Metamorphic Rock > Gneiss
    Rock unit name Guianense Complex;Roraima Formation;Morro Dos Seis Complex
    Rock description Guianense Complex;Roraima Formation;Morro Dos Seis Complex
  • Host or associated Host
    Rock type Unconsolidated Deposit > Clay, Mud

Nearby scientific data

(1) -66.41171, 0.63795
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Economic information

Comments on the geologic information

  • OVAL SHAPED AREA ABOUT 5.9 BY 4.5 KM, ELONGATE N-S.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1975
Discoverer Dnpm

Ownership information

  • Type Operator
    Owner Companhia De Pesquisa De Recursos Minerais (Cprm)
    First year 1975

Reserves and resources

  • Type In-situ
    Estimate year 1986
    Total resources 2897908800000mt ore
    Commodity Subtype Grade units Group Importance Year
    Niobium (Columbium) Nb2o5 2.81 wt-pct Niobium (Columbium) Major 1986

Comments on the reserve resource information

  • ORE (1) MEASURED; ORE (2) INDICATED; ORE (3) INFERRED; ORE (4) TOTAL

Comments on development

  • DISCOVERED BY RADAR. CPRM DID AEROMAG; AERORAD (BACKGROUND, 1300 CPS; HIGHEST 35000 CPS); GEOCHEMISTRY OVER AREA 500 X 2000 M; 1464.2 M OF DRILLING IN 4 HOLES BETWEEN 250 AND 120 M DEPTH.

Reference information

Bibliographic references

  • Deposit

    JUSTO, L.J.E.C., AND DESOUZA, M.M., 1986, JAZIDA DE NIOBIO DO MORRO DOS SIES LAGOS, AMAZONAS, IN PRINCIPAIS DEPOSITOS MINERAIS DO BRASIL, EDS. C. SCHOBBENHAUS AND C.E.S. COELHO: MINISTERIO DAS MINAS E ENERGIA, BRASILIA, V. 11, P. 463-467

  • Other Database

    CIMRI

General comments

Subject category Comment text
Deposit LATERITE UP TO 250 M THICK, SOME KARST TYPE TOPOGRAPHY MAKING CAVES.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1994 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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