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Brazil
Northern System Operation (Serra Leste Complex, Serra Norte Complex, Serra Sul Complex)

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 Location:
15 km N from Curionópolis, Brazil

  Regional Office:
Rua Cabral 1555, Centro
Corumbá
Brazil
79332-030
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WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Financials
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Iron Ore
Mining Method
  • In-Pit Crushing & Conveying (IPCC)
  • Truck & Shovel / Loader
Production Start...
Mine Life2062
The Northern System 240 Mt Program, approved in December 2018 by our Board of Directors, will expand the S11D’s production capacity and the Northern System logistics capacity by 10 Mtpy. The mine-plant project front has start-up expected until the end of 2022 and the logistics project front has start-up expected for the second half of 2023. In 2021, the project’s mine-plant physical progress reached 91%, with the partial completion of earthworks, the replacement of crushers, advances in the assembling of the Line 3 of the railway’s reverse loop and the issuance of the installation permit for both mine and plant, among other measures.

Northern System includes mining complexes:
- Serra Norte (three main mining areas and three beneficiation plants);
- Serra Sul (one main mining area and one beneficiation plant);
- Serra Leste (one mining area and one beneficiation plant).


Owners

Source: p. 45, 46
CompanyInterestOwnership
Vale S.A. 100 % Indirect
Vale conducts iron ore business in Brazil primarily at the parent-company level, and through subsidiaries Mineracao Corumbaense Reunida S.A. (‘‘MCR’’) and Mineracoes Brasileiras Reunidas S.A. (‘‘MBR’’).

Northern System Vale interest: Serra Norte - 100%, Serra Sul - 100%, Serra Leste - 100%.

Contractors

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Deposit Type

  • Banded iron formation


Summary:

The iron deposits of the Northern Iron System are hosted in the Precambrian rocks of the Itacaiunas Supergroup. The basement of the region consists of the Pium Complex ortho-granulites, and Xingu Complex gneiss and migmatites. The volcanics and sediments of the Itacaiunas Supergroup overlie the basement, and are in turn overlain by Aguas Claras clastic sediments. Granites, gabbros, and granitoids intrude the sedimentary sequence. The Carajas ores are hosted by the Grao Para Group of the Itacaiunas Supergroup, composed of meta-basalts, meta-sediments, ironstones, and meta-rhyolites. The ore deposits lie within an approximately 300 to 400 meters thick banded chert-hematite jaspilite unit that occurs between thick volcanic units.

The lower volcanic unit is the Parauapebas Formation (4,000 to 6,000 meters thick), and consists of bimodal volcanics (dominantly massive, vesicular and porphyritic flows and agglomerate breccias of metabasalt, meta-basaltic andesite and meta-trachyandesites), with subordinate (10 to 15 percent) meta- rhyolitic tuffs and flows.

The Carajas Formation hosts the deformed banded-iron formations (BIFs) with some interbedded mafic meta-volcanics. The Cigarra Formation (upper volcanic unit) is similar to that of the Parauapebas Formation with mixed meta-sediments (fine grained tuffs, tuffaceous siitstones, phyllites, cherts and greywacke). The volcanic sequence has generally been weathered to a depth of 100 to 150 meters. The oxidation is ........


Mining Methods

  • In-Pit Crushing & Conveying (IPCC)
  • Truck & Shovel / Loader


Summary:

Iron ore Northern System operations are located at Carajás, State of Pará in Brazil.

Northern System includes mining complexes:
- Serra Norte (three main mining areas and three beneficiation plants);
- Serra Sul (one main mining area and one beneficiation plant);
- Serra Leste (one mining area and one beneficiation plant).

Serra Norte
The Serra Norte Complex corresponds to deposits called N1, N2, N3, N4 and N5. The mines in operation are N4E, N4W and N5. Projects N1 and N2 are expected to start up in 2026 and project N3 is expected to start up in 2023.

N4 and N5 mines, currently in operation, utilize open pit mining and are operated by large loading and hauling equipment, namely, hydraulic excavators with loading capacity up to 80 ton, cable excavators with loading capacity up to 109 ton and front-end-loader with loading capacity of 72.6 ton. The haulage is carried out by truck with payload capacity of 400, 363 and 290 Tons. In some regions of these mines, where maximum relevant iron ore caves are presented, continuous miners are utilized, which eliminates drilling and blasting thereby reducing ground vibrations caused by blasting and avoiding damage to the caves near the mining areas.

The mining method at Serra Norte is open pit, as a normal standard operation used across the mining industry. Part of the material is free digging and other parts require blasting. The ore is loaded into the haul road trucks and d ........


Crushing and Grinding


Processing

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Summary:

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Production:

CommodityUnits202120202019201820172016
Iron Ore kt  ......  Subscription required  ......  Subscription required  ......  Subscription required193,600169,200148,100
All production numbers are expressed as concentrate.
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Reserves at December 31, 2021:

CategoryTonnage CommodityGrade
Proven 2,290 Mt Iron 66.1 %
Probable 3,827 Mt Iron 65.6 %
Proven & Probable 6,117 Mt Iron 65.8 %
Measured 1,368 Mt Iron 62.9 %
Indicated 1,077 Mt Iron 62.3 %
Measured & Indicated 2,444 Mt Iron 62.6 %
Inferred 473.6 Mt Iron 63.6 %

Financials:

Units2022202120202019
Capital expenditures (planned) M USD  ......  Subscription required
Capital expenditures M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required
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Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required May 31, 2022
....................... Subscription required ....................... Subscription required Subscription required May 31, 2022
....................... Subscription required ....................... Subscription required Subscription required May 31, 2022
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Corporate Filings & Presentations:

DocumentYear
Technical Report 2022
Technical Report 2022
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2019
Form 20-F 2018
Form 20-F 2017
Form 20-F 2016
Form 20-F 2015
Form 20-F 2011
Technical Report 2010
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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