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  3. Mineral Resource Data System (MRDS)

Corrego Do Feijao

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 10182434
MAS/MILS ID 3510230036
Record type Site
Current site name Corrego Do Feijao

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -44.12566, -20.10249 (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
Calcite Unknown
Dolomite Unknown
Hematite Unknown
Limonite Unknown
Mica Unknown
Quartz Unknown

Nearby scientific data

Ore Body (1) -44.12566, -20.10249
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Economic information

Ore body information

  • Thickness 95M
    Length 1200M
    Width 250M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 UNKNOWN
    Primary mode of Origin SEDIMENTATION
    Secondary mode of Origin CONT METASOMATIC
    Primary Ore Control UNKNOWN
    Degree of Wallrock Alter. MODERATE
    Date of Last Modification 860717

Comments on the geologic information

  • THE ITABIRITES, WITH AN IRON CONTENT VARYING BETWEEN 35 AND 60 PERCENT SEEM TO HAVE BEEN FORMED BY PRE-CAMBRIAN MARINE SEDIMENTARY PROCESSES. THE VARIATIONS IN METAL CONTENT WERE CAUSED BY CHANGES IN THE PHYSICAL AND CHEMICAL CONDITIONS UNDER WHICH THE PRECIPITATION OF THE IRON AND SILICA COLLOIDS TOOK PLACE. ITABIRITES ARE THE HOST ROCK FOR THE HIGH-GRADE HEMATITE DEPOSITS OF THE MINAS SERIES. ITABIRITE IS THE NAME GIVEN TO THE BANDED ROCKS COMPOSED OF ALTERNATE LAYERS OF HEMATITE AND QUARTZ WITH AN IRON CONTENT VARYING BETWEEN 35 AND 60 PERCENT. ITABIRITES READILY DISINTERGRATE, GIVING RISE TO THE TYPE OF ORE KNOWN AS CHAPINHA, EITHER BY CHEMICAL DECOMPOSITION WHEN THE HEMATITE IS HYDRATED, OR BY MECHANICAL DIS- INTEGRATION CAUSED BY LEACHING FOLLOWED BY DISINTEGRATION OF THE QUARTZ MASSES, WHICH TURN INTO FINE SAND AS THE HEMATITE DISINTEGRATES INTO FLAT, ANGULAR FRAGMENTS (BISCUIT ORE).

Economic information about the deposit and operations

Operation type Surface
Development status Producer
Commodity type Metallic
Significant Yes

Ownership information

  • Type Owner-Operator
    Owner Ferteco Mineracao S. A.
    Interest 100
    Year 1982

Reserves and resources

  • Type In-situ
    Estimate year 1981
    Indicated 135000000mt ore
    Demonstrated 135000000mt ore
    Total resources 135000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Iron Fe 65 wt-pct Iron Major 1981
    Iron Fe 65 wt-pct Iron Major 1981
    Iron Fe 65 wt-pct Iron Major 1981

Comments on the reserve resource information

  • OTHER NAME: CORREGO DE FEIJAO. PROVEN RESERVES ARE 114 MILLION T. W/65 PCT IRON. INIT. CHANGED FROM "F" TO "N". PREVIOUS COMPANY ABOVE WAS: CIA. SIDERURGICA BELGO-MINIERIA

Workings at the site

  • Type of workings Surface
    Area 300HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Mining Method OPEN PIT
    Avg. Bench Height (meters) 6
    Capacity 9400
    Capacity Units MT ORE/DAY
    Unit Production Cost 1.16
    Units of Production $/MT ORE
    Operating Days per Year 320
    Operating Shifts per Day 2
    Year of Information 1982

Comments on other economic factors

  • NINETY PERCENT OF THE FINAL PRODUCTS ARE TRANSPORTED BY RAIL TO DOMESTIC STEEL PLANTS; TWENTY PERCENT TO PLANTS WITHIN A 100 MILE RADIUS AND SEVENTY PERCENT TO PLANTS IN RIO-SANTOS. THE REMAINING TEN PERCENT ARE EXPORTED TO GERMANY. LUMP ORE IS THE ONLY FINAL PRODUCT WHICH IS EXPORTED BY THIS PROPERTY.

Reference information

Bibliographic references

  • Deposit

    SKILLINGS' MINING REVIEW, FERTECO IRON ORE SHIPMENTS AT

  • Deposit

    RECORD 6,584,000 M.T. IN 1979, MAY 24, 1980.

  • Deposit

    SKILLINGS, JR., D.N., FERTECO OPERATING NEW PRODUCTION

  • Deposit

    FACILITIES AT FABRICA, SKILLINGS' MINING REVIEW, NOVEMBER

  • Deposit

    12, 1977, PP 10-17.

Reporter information

Type Date Name Affiliation Comment
Reporter 13-FEB-95 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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