Guinea

Simandou South (blocks 3 and 4) Project

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Overview

Mine TypeOpen Pit
StagePermitting
Commodities
  • Iron Ore
Mining Method
  • Truck & Shovel / Loader
Production Start... Lock
Mine Life40 years (as of Jan 1, 2016)
ShapshotThe Simandou iron ore project in Guinea contains one of the world’s largest known undeveloped high-grade low-impurity iron ore deposits, demand for which is increasing as steelmakers look to reduce carbon emissions.

The Simandou site is divided into four mining blocks, broken up into two projects: Simandou North (blocks 1 and 2) and Simandou South (blocks 3 and 4). The two northern blocks (blocks 1 and 2) are owned by SMB-Winning Consortium.

Rio Tinto and its Simfer joint venture (JV) partners have determined key agreements with the Republic of Guinea and Winning Consortium Simandou (WCS) on the trans-Guinean infrastructure for the Simandou project.

Owners

SourceSource
CompanyInterestOwnership
Government of Guinea 15 % Indirect
Chinalco Mining Corporation International 39.95 % Indirect
Rio Tinto plc 45.05 % Indirect
Simfer S.A., (operator) 100 % Direct
The Simandou project operates under the Simfer joint venture where the Government of Guinea holds 15% and Simfer Jersey holds 85%. Simfer Jersey is owned by Chalco Iron Ore Holdings (CIOH) (47%) and Rio Tinto (53%). Rio Tinto and CIOH, own 45.05% and 39.95% of Simandou, respectively.

Contractors

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Deposit type

  • Banded iron formation

Summary:

The Pic de Fon and Ouéléba iron deposits comprise the Simandou South project.

The Ouéléba and Pic de Fon supergene-enriched itabirite iron ore deposits are located in the southern part of the Simandou Range in south-eastern Guinea. The Simandou Range is part of the Kénéma-Man Domain of the West African Craton. The deposits are hosted within the Simandou Group with the Itabirite Formation overlying the Phyllites and Schist Formations. The deposits have undergone intense multi-phase deformation and are deeply weathered.

The Simandou Range is the result of multi-phase ductile deformation represented by tight synformal fold keels and sheared antiformal structures. The ridge consists of a formation of itabirites (metamorphosed BIF) and phyllites within the Simandou Group overlying basement gneiss and amphibolite. The itabirites and phyllites have been deeply weathered and identifying stratigraphy is difficult, with the only discernible contact being that between the itabirites and phyllites.

The following domains have been interpreted for the itabirites: laterite, carapace, transitional mineralisation, friable haematite goethite mineralisation, friable enriched itabirite, friable poor itabirite and compact poor itabirite.

Phyllite domains have been interpreted for very weak phyllite, soil strength phyllite, weak phyllite, compact pyritic phyllite, weak quartzite and compact quartzite.

Laterite and carapace are sub-horizontal with the laterite overlying all other lithologies and the carapace overlying the mineralisation and enriched itabirite lithologies.

The itabirites and phyllites are interpreted to be folded with the axial planes of the fold hinges dipping moderately to steeply towards the west.

The Ouéléba and Pic de Fon deposits extend for 7.8 km and 7.5 km along strike with widths of 0.8 km and 1 km respectively. The mineralisation interpreted for the Mineral Resources extends from surface to a vertical depth of approximately 500 m.

The high-grade haematite-goethite (Ouéléba) or haematite-martite (Pic de Fon) mineralisation transitions with increasing depth to partially enriched itabirites and then into unenriched itabirites.

A surface covering of weathered mineralisation typically up to 20 m to 30 m in depth is found over the high grade mineralisation at Pic de Fon. At Ouéléba much deeper pervasive weathering is observed with a weathered carapace (goethite, clay and limonite rich) and a transitional weathering/mineralisation zone are observed over the high grade mineralisation. These zones are typically between 30 m to 100 m thick but can be over 300 m thick in some locations.

Reserves

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Mining Methods

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Comminution

Crushers and Mills

Milling equipment has not been reported.

Processing

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Production

CommodityUnitsAvg. Annual
Iron (hematite) Mt 100
All production numbers are expressed as ore.

Production Costs

CommodityUnitsEstimated
Assumed price Iron Ore USD 00
* According to 2016 study / presentation.

Project Costs

MetricsUnitsLOM Total
Total CapEx $M USD  ......  Subscribe

Heavy Mobile Equipment

Fleet data has not been reported.

Personnel

Mine Management

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