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Australia
Gudai-Darri (Koodaideri) Mine (Hamersley Iron Operation)

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 Location:
125 km E from Tom Price, Western Australia, Australia

  Regional Office:
Level 18, Central Park 152-158 St Georges Tce
Pert
Western Australia, Australia
6000
Phone  ...  Subscription required
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Fleet
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Iron Ore
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life40 years (as of Jan 1, 2022)
The latest addition to the network of Hamersley Iron mines is Gudai-Darri, had first ore railed in December 2021, and commissioned its primary crusher in Q2 2022.


Owners

Source: p. 213,310
CompanyInterestOwnership
Rio Tinto plc 100 % Indirect
Gudai-Darri is an iron ore mine owned by Rio Tinto and operated by its fully-owned subsidiary Hamersley Iron Pty Ltd.

Contractors

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Deposit Type

  • Banded iron formation


Summary:

Gudai-Darri, Tom Price, Paraburdoo and Western Turner Syncline: mineralisation is haematite/goethite mineralisation hosted within the banded iron formations of the Brockman Formation. Detrital deposits also occur at these sites. The Project area lies within the Hamersley Range which is principally comprised of rocks of the Brockman Iron Formation. Further north is the broad expanse of the Fortescue Valley, which was formed by the preferential erosion of the Wittenoom Formation and includes deep layers of Cainozoic sediments. The Gudai-Darri (formerly Koodaideri) mine area contains martite-geothite mineralisation predominantly within the Dales Gorge Member of the Brockman Iron Formation, with lesser mineralisation in the Joffre Member. A variable thickness hydrated capping overlies the deposits, which is permeated with numerous cavities. The orebody is underlain by the Mount McRae Shale and Mount Sylvia Formations.


Mining Methods

  • Truck & Shovel / Loader


Summary:

All of Hamersley Iron's mines are conventional open pits using track and shovel mining method with preliminary drilling and blasting. The drill holes are filled with an explosive, most often ANFO (Ammonium Nitrate/Fuel Oil) and then charged. The resulting blast breaks the material to a size required for digging.

The broken material is loaded for transport by face shovels, excavators or front-end loaders into haul trucks. Haul trucks at our operations are typically in the 190 tonne and 240 tonne class. Overland conveyors are used to transport partially crushed feed at sites where there are long distances between the pits and process plants.

Rail and port operations
Ore from processing facilities is railed up to 460 kilometres to the coast along a dedicated privately owned rail system. A typical train consist comprises 2 GE Dash 9 locomotives, 230 ore cars and is over 2.4 kilometres long. A single driver, supported by centralised track control, operates the train.

Once the train arrives at the port the ore cars go through the car-dumper. The ore cars are rotated and the ore flows out into bins and then is discharged onto conveyors.

The ore is stockpiled according to product type and the quality control plan. The travelling stackers create 250m long stockpiles. Rotary bucket-wheel reclaimers later reclaim the ore, which will be conveyed to the ship loader.

Vessels are loaded at the berths alongside the ore wharf. Lump ........


Crushing and Grinding
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Processing

Flow Sheet: Subscription required

Summary:

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Combined production numbers are reported under Hamersley Iron Operation

Operational Metrics:

Metrics2023
Annual production capacity  ......  Subscription required
^ Guidance / Forecast.
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Reserves at December 31, 2020:

CategoryTonnage CommodityGrade
Proven 286 Mt Iron 62.2 %
Probable 275 Mt Iron 61.3 %
Proven & Probable 561 Mt Iron 61.8 %


Water Supply
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Heavy Mobile Equipment:
HME TypeModelQuantityRef. Date
Drill (blasthole) ....................... Subscription required ....................... Subscription required Jun 21, 2022
Truck (haul) ....................... Subscription required ....................... Subscription required Jun 21, 2022
Truck (water) ....................... Subscription required ....................... Subscription required Mar 17, 2022
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jul 18, 2023
....................... Subscription required ....................... Subscription required Subscription required Jul 18, 2023
....................... Subscription required ....................... Subscription required Subscription required Jul 18, 2023
....................... Subscription required ....................... Subscription required Subscription required Jul 18, 2023
....................... Subscription required ....................... Subscription required Subscription required Jul 18, 2023
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2018

Corporate Filings & Presentations:

DocumentYear
Annual Report 2022
Press Release 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
Annual Report 2018
Press Release 2018
Technical Report 2018
Year-end Mineral Reserves 2018
Year-end Mineral Reserves 2016
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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