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Brazil
Itabira Complex (Southeastern System Mine)

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 Location:
1 km SW from Itabira, Brazil

  Address:
Serra do Esmeril
Itabira
Brazil
35900-900
Phone  ...  Subscription required
WebsiteWeb
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  • Overview
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  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Iron Ore
Mining Method
  • Truck & Shovel / Loader
Processing
  • Flotation
  • Magnetic separation
Mine Life2029
Itabira integrated operation includes Conceicao and Minas do Meio mines.
Latest NewsIron ore prices soar as Vale shuts mines down     June 9, 2020


Owners & OPERATOR

Source: p. 84
CompanyInterestOwnership
Vale S.A. (operator) 100 % Direct
Vale 100% interest

Deposit Type

  • Banded iron formation


Summary:

The Southeastern System mines are located in the Quadrilatero Femfero (Iron Quadrangle).

Ore reserves with high ratios of itabirite ore relative to hematite ore type. Itabirite ore has iron grade of 35-60%.

The Itabira complex is located in the northeastern corner of the Quadrilatero Femfero (Iron Quadrangle). It is enclosed by a local geologic structure that appears separated from the regional Iron Formation. The geologic structure consists of a 14-kilometer long, NE-trending range that shows three main synclines at both extremes (Conceicao and Caue) and middle (Minas do Meio) sections. The synclines branch out to the west from the general structure, and have created appropriate conditions to hold massive concentrations of the iron mineralization.

High-grade ores of Hematite and Itabirite, in continuous occurrence, are extracted along the structure, from the Conceicao mine at the southwest end to the Caue mine in the NE side of the range. The ore reserves at the Caue have been depleted. The Minas do Meio mine consists of numerous deposits located along the geologic structure, such as the Corpo D, Periquito, Dois Corregos, Onca, and Chacrinha.

The main iron ore types in the Iron Quadrangle are:

Hematite: Hematite represents the high-grade ore type within the iron deposit. The iron content varies from 65 to 67 percent. It is either massive or foliated in nature. The hematite is classified according to its physical and chemical characteristics as Compact Hematite, Friable Hematite, and Goethitic / Argilitic Hematite. Its origin is related to hydrothermal or metasomatic processes.

Itabirite: Itabirite is a term widely used in Brazil to denote a metamorphosed iron formation composed of iron oxides (hematite, magnetite, and martite), abundant quartz, very rarely mica, and other accessory minerals. It may be foliated or compact. The un-enriched (poor) itabirites from the Quadrilatero Ferrffero tend to have little magnetite, and composed principally of quartz-hematite, quartz-hematite-carbonate and hematite-carbonate. Itabirite represents the majority of reserves and resources of the Iron Quadrangle deposits. According to Vale, it was originated by silica leaching and residual iron-oxide enrichment process during post-metamorphic weathering cycles. The iron content averages about 45 percent, and occasionally it may reach up to 60 percent. The Itabirite ore is classified according to its physical and chemical characteristics as Compact Itabirite, Friable Itabirite, Goethitic / Argilitic Itabirite or Ochre.

Canga: Canga ore consists of unconsolidated talus material formed by the weathering of the iron formation. The iron content ranges significantly, with generally high concentration of phosphorous and alumina.

Rolados: A second detrital mineralization type. Consists of a ferruginous or lateritic matrix with fragments and blocks of different materials such as hematite, itabirite, quartz; high Fe grade, with high contaminant levels, such as P and Al203.s.


Mining Methods

  • Truck & Shovel / Loader


Summary:

Open-pit mining operations.


Crushing and Grinding


Processing

  • Flotation
  • Magnetic separation

Source: Subscription required

Summary:

The beneficiation process for the run of mine consists of standard crushing, classification and concentration steps, producing sinter feed, lump ore and pellet feed.

Recoveries & Grades:

CommodityParameter20192018201720162015201420132012
Iron Ore Recovery Rate, %  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Production:

CommodityUnits201920182017201620152014
Iron Ore Mt  ......  Subscription required  ......  Subscription required38333636
All production numbers are expressed as concentrate.
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Operational Metrics:

Metrics2015
Annual production capacity 42.7 Mt of iron ore concentrate

Reserves at December 31, 2019:

CategoryTonnage CommodityGrade
Proven 418.9 Mt Iron 47.3 %
Probable 377.4 Mt Iron 44.2 %
Proven & Probable 796.2 Mt Iron 45.8 %


Heavy Mobile Equipment:

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Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2019
................................... Subscription required 2018
Form 20-F 2017
Form 20-F 2016
Form 20-F 2015
Form 20-F 2014
Form 20-F 2013
Form 20-F 2012
Form 20-F 2011
Technical Report 2009
Technical Report 2005
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News:

NewsDate
Iron ore prices soar as Vale shuts mines down June 9, 2020

Aerial view:

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