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  3. Mineral Resource Data System (MRDS)

Alegria

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. Nearby scientific data
  7. Ore body information
  8. Economic information about the deposit and operations
  9. Ownership information
  10. Reserves and resources
  11. Workings at the site
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10134430
MAS/MILS ID 3510230076
Record type Site
Current site name Alegria

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -43.49894, -20.13078 (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

Nearby scientific data

Ore Body (1) -43.49894, -20.13078
ListMap

Economic information

Ore body information

  • Thickness 90M
    Length 1250M
    Width 550M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 LATERITE
    Shape of Orebody #1 UNKNOWN
    Primary mode of Origin RESIDUAL CONCENT
    Primary Ore Control OTHER
    Degree of Wallrock Alter. NONE
    Date of Last Modification 860520

Comments on the geologic information

  • THE RICH ITABIRITE OREBODY CONSISTS OF TROPICAL SOFT-BEDDED IRON ORE. THERE ARE VARIOUS OREBODIES IN THE ALEGRIA LINE, THE PRINCIPAL ONE STRIKES EAST-WEST, DIPPING FROM 0 - 45 DEGREES. THE SUPERGENIC ENRICHED LAYERS OF ITABIRITE ARE APPROXIMATELY PARALLEL TO TOPOGRAPHIC RELIEF. ITABIRITE IS A HEMATITE MINERAL.

Economic information about the deposit and operations

Operation type Surface
Development status Producer
Commodity type Metallic
Significant Yes
Year of first production 1969

Ownership information

  • Type Operator
    Owner S. A. Mineracao Da Trindade (Samitri)
    Year 1982
  • Type Owner
    Owner Cia Central De Adminstracao E Participacoes
    Interest 40
    Year 1982
  • Type Owner
    Owner Cia Siderurgica Belgo Mineira
    Interest 33
    Year 1982
  • Type Owner
    Owner Others +/- 6,000 Shareholders
    Interest 27
    Year 1982

Reserves and resources

  • Type In-situ
    Estimate year 1982
    Measured 178350000mt ore
    Indicated 10339999mt ore
    Demonstrated 188689999mt ore
    Total resources 188689999mt ore
    Commodity Subtype Grade units Group Importance Year
    Iron Fe 63.5 wt-pct Iron Major 1982
    Iron Fe 63.5 wt-pct Iron Major 1982
  • Type In-situ
    Estimate year 1993
    Demonstrated 133200000mt ore
    Total resources 133200000mt ore
    Commodity Subtype Grade units Group Importance Year
    Iron Fe 57 wt-pct Iron Major 1993

Comments on the reserve resource information

  • OW: CIA. SIDERURGICA BELGO-MINEVRA. OP: S/A MINERACAO DA TRINIDADE (SAMITRI) RESERVES EST. AS 6 BILLION T. OF 50 PCT. IRON ITABIRITE ORE. OWNERSHIP IS DEPOSIT REPORT IS: CIA DE ADMINISTRACAOE PARTICIPACOES

Workings at the site

  • Type of workings Surface
    Area 68.7HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Mining Method OPEN PIT
    Percent Waste Rock 17
    Avg. Bench Height (meters) 8
    Capacity 20000
    Capacity Units MT ORE/DAY
    Unit Production Cost 1.34
    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

    SKILLINGS, D.N., JR., SAMITRI, SKILLINGS MINING REVIEW,

  • Deposit

    VOL. 62, NO. 16, APRIL 21, 1973.

  • Deposit

    SKILLINGS MINING REVIEW, 1979 SAMITRI IRON ORE OUTPUT AND

  • Deposit

    SHIPMENTS AT HIGHER LEVELS, MARCH 29, 1980.

General comments

Subject category Comment text
Deposit THE ORE IS TRANSPORTED BY RAIL TO PORTO TUBARAO VICTORIA, 715 KM. THE ORE IS THEN SHIPPED TO MARKET, WITH THE FINES SHIPPED TO EUROPE WHERE THEY ARE SINTERED.

Reporter information

Type Date Name Affiliation Comment
Reporter 02-AUG-1994 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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