Cana Brava

Producer in Goias, Brazil with commodity Asbestos
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. Geologic structures
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Ownership information
  14. Production statistics
  15. Reserves and resources
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10069065
MRDS ID W002360
Record type Site
Current site name Cana Brava

Geographic coordinates

Geographic coordinates: -48.14907, -13.19775 (WGS84)
Relative position DEPOSIT IS LOCATED ON THE WEST BANK OF THE TOCANTINS RIVER, 530 KM FROM THE CITY OF GOINIA AND 140 KM FROM THE BELEM-BRASILIA HIGHWAY. MINE IS AT MINACU.

Site location context

Political divisions (FIPS codes)

Goias(province)

Brazil(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Brazil Goias

Commodities

Commodity Importance
Asbestos Primary

Materials information

Materials Type of material
Chrysotile Ore

Analytical data

Result FIBER BEGINS TO LOSE WATER OF CRYSTALLISATION AT 450-500 DEG C
Result PROCESS COMPLETED AT 700 DEG C.

Mineral occurrence model information

Model code 18
USGS model code 8d
Deposit model name Serpentine-hosted asbestos

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Gabbro
    Rock unit name Cana Brava Complex
    Rock description Cana Brava Complex
    Stratigraphic age (youngest) Neoarchean
    Stratigraphic age (youngest) Neoarchean
  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock
  • Host or associated Host
    Rock type Metamorphic Rock > Serpentinite

Nearby scientific data

(1) -48.14907, -13.19775

Economic information

Geologic structures

Type of structure Local
Structure description A Series Of East-West Vertical Faults Cause Minor Displacement Of Ore Zones.

Ore body information

  • General form TABULAR
    Strike N
    Dip 50 W
    Length 600M
    Width 20M
    Depth to bottom 50M

Economic information about the deposit and operations

Development status Producer
Commodity type Non-metallic
Significant No
Year of first production 1967

Ownership information

  • Type Owner-Operator
    Owner S. A. Mineracao De Amianto (Sama)

Production statistics

  • Year 1984
    Period - 1984
    Material ORE
    Accuracy Accurate
    Description Cp_Grade: ^6.7% Asb
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Arsenic Arsenic 7wt-pct

Reserves and resources

  • Type In-situ
    Estimate year 1984
    Total resources 59200000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Asbestos Asbestos 6.7 wt-pct Asbestos Major 1984
  • Type In-situ
    Estimate year 1977
    Total resources 50000000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Asbestos Asbestos 7 wt-pct Asbestos Major 1977

Comments on the workings information

  • OVERBURDEN IS LESS THAN 1 M THICK AND IS NO PROBLEM AT ZONE A. AT ZONE B, THE OVERBURDEN IS FROM 6 TO 11 M THICK. IN 1972, THE PIT AT ZONE A WAS 6 M DEEP AND 150 M LONG. IN 1983 THE WASTE TO ORE RATIO WAS 2:1.

Comments on development

  • ECON.COM: SAMA PRODUCES 95% OF BRAZIL'S ASBESTOS OUTPUT.

Reference information

Bibliographic references

  • Deposit

    WENDEL, C.A., 1969, MONTHLY REPORT: U.S. GEOLOGICAL SURVEY BRAZIL PROJECT, MAY, 1969.

  • Deposit

    AZEVEDO BRANCO, P.C. DE, 1984, PRINCIPAIS DEPOSITOS MINERAIS: CONCEITOS, METODOLOGIA E LISTAGEM, IN SCHOBBENHAUS, CARLOS, ALMEIDA CAMPOS, DIOGENES DE, DERZE, G.R., AND ASMUS, H.E., COORDS., GEOLOGIA DO BRASIL: BRASILIA, BRAZIL, DEPARTAMENTO NACIONAL DA PRODUCAO MINERAL, P. 360-419.

  • Deposit

    HARBEN, PETER, 1984, A PROFILE OF SA MINERACAO DE AMIANTO--BRAZIL'S ASBESTOS PRODUCER: INDUSTRIAL MINERALS, NO. 198, P. 63-65.

  • Deposit

    ASBESTOS, V. 62, NO. 7; V. 59, NO. 6.

  • Deposit

    O'DRISCOLL, MIKE, 1989, BRAZIL'S INDUSTRIAL MINERALS--SEEKING SUCCESS AGAINST ALL ODDS: INDUSTRIAL MINERALS, NO. 266, P. 23-69.

  • Other Database

    CIMRI

  • Production

    AZEVEDO BRANCO, 1984; ASBESTOS

  • Reserve-Resource

    AZEVEDO BRANCO, 1984.

General comments

Subject category Comment text
Deposit COMMERCIAL CONCENTRATIONS OF FIVER ARE FOUND IN 3 ZONES. THE MAIN ORE BODIES, ZONES A AND B, TREND NORTHERLY. ZONE A IS 600 M LONG AND 20 M WIDE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1974 Warfle, Thomas M. U.S. Geological Survey
Updater 01-JUN-1991 Orris, Greta J. U.S. Geological Survey

Beyond USGS

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