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Pocos De Caldas Cba

Producer in Minas Gerais, Brazil 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. Nearby scientific data
  7. Ore body information
  8. Economic information about the deposit and operations
  9. Mining district
  10. Mineral rights holdings
  11. Land status
  12. Ownership information
  13. Production statistics
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10231263
MAS/MILS ID 3510230022
Record type Site
Current site name Pocos De Caldas Cba
Alternate or previous names Pocos De Caldas/Cba

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -46.58229, -21.74746 (WGS84)
Elevation 1600
Location accuracy 1000(meters)

Site location context

Political divisions (FIPS codes)

Minas Gerais(province)

Brazil(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Brazil Minas Gerais

Commodities

Commodity Importance
Aluminum Critical Primary

Nearby scientific data

Ore Body (1) -46.58229, -21.74746
ListMap

Economic information

Ore body information

  • Thickness 4M
    Length 30000M
    Width 30000M
    Area 85487HA
    Field Value
    Type of Orebody #1 LATERITE
    Shape of Orebody #1 MANTLELIKE
    Type of Orebody #2 SEDIMENTARY
    Shape of Orebody #2 TABULAR
    Type of Orebody #3 OTHER
    Shape of Orebody #3 IRREGULAR
    Primary mode of Origin RESIDUAL CONCENT
    Secondary mode of Origin OXIDATION
    Primary Ore Control OTHER
    Degree of Wallrock Alter. UNKNOWN
    Minimum Depth to Top .2
    Min. Thick. Unconsol. Mat. .2
    Total Surface Area (HA) 85487
    Date of Last Modification 830622

Comments on the geologic information

  • THE DEPOSITS ARE LOCATED WITHIN AN ALKALINE MASSIF. BAUXITE OCCURRENCES ARE FOUND MAINLY IN THE RIM AND INTERNAL PLATEAU. DEPTH OF MINERALIZATION VARIES WITH DEPOSIT. STRIKE IS GENERALLY NW-SE. DIP VARIES FROM 0-28 DEGREES. THE DEPOSITS ARE FOUND IN PRECAMBRIAN MAFIC VOLCANICS OVERLAIN BY CRETACEOUS SEDIMENTARY ROCKS. THE BAUXITE OF THE REGION IS FORMED BY THE WEATHERING OF THE ALKALINE IGNEOUS ROCKS.

Economic information about the deposit and operations

Operation type Surface
Development status Producer
Commodity type Metallic
Significant Yes
Year of first production 1941
Milling method Washing

Mining district

District name Minas Gerais

Mineral rights holdings

Type of mineral rights Unknown

Land status

Ownership category Unknown

Ownership information

  • Type Owner-Operator
    Owner Companhia Brasileira De Aluminio
    Interest 100
    Home office Brazil
    Year 1981

Production statistics

  • Year 1974
    Period 1972-1974
    Description Bauxite Ore Production 1972 To 1974 150000 Mt Ore/Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Aluminum Aluminum 150000mt
  • Year 1979
    Period 1975-1979
    Description Bauxite Ore Production 1975 To 1979 300000 Mtpy
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Aluminum Aluminum 300000mt
  • Year 1982
    Period 1980-1982
    Description Bauxite Ore Production 1980 To 1982 500000 Mtpy
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Aluminum Aluminum 500000mt
  • Year 1983
    Description Bauxtie Ore Production 600000 Mtpy
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Aluminum Aluminum 600000mt
  • Year 1984
    Description Bauxite Ore Production 687000 Mtpy
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Aluminum Aluminum 687000mt
  • Year 1985
    Description Bauxite Ore Produciton 690000 Mtpy
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Aluminum Aluminum 690000mt
  • Year 1986
    Description Bauxite Ore Production 700000 Mtpy
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Aluminum Aluminum 700000mt
  • Year 1987
    Description Bauxite Ore Production 750000 Mtpy
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Aluminum Aluminum 750000mt
  • Year 1988
    Description Bauxite Ore Production 800000 Mtpy
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Aluminum Aluminum 800000mt
  • Year 2013
    Period 1989-2013
    Accuracy Estimate
    Description Bauxite Ore Production 1989 To 2013 850000 Mtpy
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Aluminum Aluminum 850000mt

Comments on the reserve resource information

  • MINING JOURNAL, MAY 19, 1989, V. 312, NO. 8020, P. 399.
  • POCOS DE CALDAS ALCAN, POCOS DE CALDAS (CBA) ON OLD ADIT. REO SPECIALIST HAS INDICATED PRESENCE OF RECOVERABLE RARE EARTHS ON THIS PLATEAU. CHECK WITH SAME NAME SN 3510230148
  • THIS IS GOLDERS ALUMINUM CONTRACT DATA FROM 1981. THE DEPOSIT PROFILE REPORT WAS NOT IN THE FILE. THE DATA COULD NOT BE CHECK. THE ASSEY GRADE FOR THE AL2O3 IS IN TERMS OF CONTAINED ALUMINUM (AL). QM1C3=QM9C6; THIS IS THE 1987 RESERVE/RESOURCE ESTIMATE, FOR THE UPDATED AL AVAILABILITY STUDY. THEY ARE BASED ON THE 1983 RESERVE/RESOURCE ESTIMATE OF 30M MT ORE (INSITU) MINUS 1983 TO 1986 BAUXITE ORE PRODUCTION.

Workings at the site

  • Type of workings Surface
    Area 85487HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method OPEN PIT
    Primary Material Cover SAND, SILT
    Percentage 100
    Hardness of Ore SAND, GRAVEL
    Capacity 3400
    Operating Days per Year 250
    Operating Shifts per Day 3
    Year of Information 1987
  • Type of workings Surface
    Area 85487HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 2
    Status of Mining Method ESTIMATE
    Mining Method OPEN PIT
    Primary Material Cover SAND, SILT
    Percentage 100
    Hardness of Ore SAND, GRAVEL
    Capacity 850000
    Unit Production Cost 5.73
    Units of Production $/MT ORE
    Year of Information 1981

Comments on other economic factors

  • DESTINATION OF PRODUCT FROM WASH PLANT IS UNKNOWN. REFINERY/ SMELTER MAY BE LOCATED AT SOROCABA, BRAZIL, A DISTANCE OF 315 KM FROM THE MINE; REFINERY/SMELTER MAY ALSO BE IN THE USA OR CANADA.

Reference information

Bibliographic references

  • Deposit

    E/MJ, AUGUST 1977, P.167-168.

  • Deposit

    E/MJ, MINING ACTIVITY DIGEST, MAR.17,1978, P.13-14.

  • Deposit

    E/MJ, MINING ACTIVITY DIGEST, FEB.13,1981, P.11.

  • Deposit

    METALS WEEK, JAN. 26,1981, P.2.

  • Deposit

    MICHELL, W.D., MINING ENGINEERING, MAR. 1977, P.55.

  • Deposit

    MINING ENGINEERING, V.25, NO. 11, NOV. 1973, P.38-39.

  • Deposit

    MINING JOURNAL, NOV.25, 1977, P.442.

  • Deposit

    WORLD MINING, ALCOA FILES REQUEST FOR PERMITS TO MINE

  • Deposit

    AMAZON BASIN BAUXITE DEPOSITS, JAN. 1977, P.55-56.

  • Deposit

    WORLD MINING, OCT. 1977, P.166.

General comments

Subject category Comment text
Deposit NEW RESERVES ARE BEING DEVELOPED AT CATAGUASES, IN RIO DE JANEIRO STATE. THE COMPANY PLANS TO RAIL 500,000 MTPY OF BAUXITE 840 KM TO THE MAIRINQUE REFINERY. THE PRESENT MINE AT POCO DE CALDAS IS 350 KM FROM MAIRINQUE. AS OF JAN. 1991, THE MINE AT CATAGUASES IS READY TO COME ON LINE. PRODUCTION AT POCO DE CALDAS IS TO BE REDUCED TO 600,000 MTPY TO EXTEND THE LIFE OF THE MINE, WHICH IS NEARING EXHAUSTION.

Reporter information

Type Date Name Affiliation Comment
Reporter 23-SEP-1996 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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