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Periquito

Producer in Minas Gerais, Brazil with commodity Iron
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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. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Ownership information
  11. Reserves and resources
  12. Workings at the site
  13. Links to other databases
  14. Bibliographic references
  15. Reporter information

Geologic information

Identification information

Deposit ID 10183907
MAS/MILS ID 3510230100
Record type Site
Current site name Periquito
Alternate or previous names Periquito-Pp

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -43.23224, -19.6308 (WGS84)
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
Iron Primary

Materials information

Materials Type of material
Amphibole Unknown
Feldspar Unknown
Hematite Unknown
Magnetite Unknown
Mica Unknown
Quartz Unknown

Nearby scientific data

Ore Body (1) -43.23224, -19.6308
ListMap

Economic information

Ore body information

  • Thickness 46M
    Length 6000M
    Width 2000M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 REPLACEMENT
    Shape of Orebody #1 TABULAR
    Shape of Orebody #2 LENTICULAR
    Primary mode of Origin CONT METASOMATIC
    Primary Ore Control FOLDING
    Degree of Wallrock Alter. MODERATE
    Date of Last Modification 860527

Comments on the geologic information

  • THERE ARE TWO MAJOR TYPES OF IRON ORE, BEDROCK HEMATITE ORE CONTAINING FROM 66 TO 69 PERCENT IRON, AND SURFICIAL ORE CONTAINING 40 TO 68 PERCENT IRON. THE HIGH-GRADE HEMATITE ORE OCCURS AS REPLACEMENT BODIES IN FORMATION OF THE ITABIRA GROUP - DOMINANTLY IN THE CAUE ITABIRITE BUT TO SOME EXTENT IN THE GANDARELA FROMATION. THE SURFICIAL ORE IS DERIVED MOST COMMONLY FROM THESE FORMATIONS BY WEATHERING. THE HIGH-GRADE BEDROCK HEMATITE ORES RANGE FROM HARD, DENSE, AND FINE GRAINED TO FINE GRAINED TO FINE, SOFT AND POWDERY. MOST ORE BODIES EXHIBIT BORH TEXTURES. THE ORE BODIES GENERALLY ARE 95 PERCENT HEMATITE. MINOR AMOUNTS OF MAGNETITE, QUARTZ, TALC, PYROPHYLLITE, PHOSPHORUS BEARING MINERALS, AND ARGILLACEOUS MATERIAL MAY BE PRESENT. THE ORE WAS FORMED DURING THE MATAMORPHIC CYCLE, AFTER FOLDING. THIS ORE BODY IS LOCATED WITHIN AN ANTICLINAL STRUCTURE.

Economic information about the deposit and operations

Operation type Surface
Development status Producer
Commodity type Metallic
Significant Yes
Year of first production 1976

Ownership information

  • Type Owner-Operator
    Owner Cia Vale Do Rio Doce (Cvrd)
    Interest 100
    Year 1982

Reserves and resources

  • Type In-situ
    Estimate year 1982
    Measured 155880000mt ore
    Demonstrated 155880000mt ore
    Total resources 155880000mt ore
    Commodity Subtype Grade units Group Importance Year
    Iron Fe 67 wt-pct Iron Major 1982
    Iron Fe 67 wt-pct Iron Major 1982
  • Type In-situ
    Estimate year 1993
    Demonstrated 562800000mt ore
    Total resources 562800000mt ore
    Commodity Subtype Grade units Group Importance Year
    Iron Fe 66 wt-pct Iron Major 1993

Comments on the reserve resource information

  • OW: ITAVALE [5.. VENTURE OF CIA. VALE DO RIO DOCE (CVRD). AND ACESITA.] CONTAINS 400 MILLION M.T. HEMATITE AND 600 MILLION M.T. ITABIRITE.

Workings at the site

  • Type of workings Surface
    Area 12000HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Mining Method OPEN PIT
    Percent Waste Rock 25
    Avg. Bench Height (meters) 13
    Capacity 22500
    Capacity Units MT ORE/DAY
    Unit Production Cost 1.3
    Units of Production $/MT ORE
    Operating Days per Year 312
    Operating Shifts per Day 2
    Year of Information 1982

Reference information

Bibliographic references

  • Reserve-Resource

    AME MINERAL ECONOMICS QUARTERLY MINE ANALYSIS, JUN 93,P. 36.

  • Deposit

    DORR,II, JOHN VAN N., NATURE AND ORIGIN OF THE HIGH-GRADE

  • Deposit

    HEMATITE ORES OF MINAS GERAIS, BRAZIL, ECONOMIC GEOLOGY,

  • Deposit

    JANUARY-FEBRUARY, 1965, VOL. 60, NO. 1, PP 1-46.

  • Deposit

    POMERENE, JOEL B., GEOLOGY AND ORE DEPOSITS OF THE BELO

  • Deposit

    HORIZONTE, IBIRITE, AND MACACOS QUADRANGLES, MINAS GERAIS,

  • Deposit

    BRAZIL, PP D1-D80.

  • Deposit

    SKILLINGS, JR., DAVID N., CVRD'S IRON ORE MINING AND PLANT

  • Deposit

    OPERATIONS AT ITABIRA, SKILLINGS' MINING REVIEW, SEPTEMBER

  • Deposit

    1977, PP 10-16.

  • Deposit

    MINING MAGAZINE, BRAZILIAN IRON ORE, MARCH, 1977, PP 152-165

Reporter information

Type Date Name Affiliation Comment
Reporter 02-AUG-94 Bolis 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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