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Australia
Hamersley Iron Operation (Brockman 2 Mine, Brockman 4 Mine, Channar Mine, Eastern Range Mine, Greater Tom Price Mine, Gudai-Darri (Koodaideri) Mine, Marandoo Mine, Nammuldi Mine, Paraburdoo Mine, Western Turner Syncline Mine, Yandicoogina Mine)

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 Location:
55 km NW from Tom Price, Western Australia, Australia

  Regional Office:
152-158 St George's Terrace
Perth
Western Australia, Australia
6000
Phone  ...  Subscription required
Fax+61-8-9366-5468
WebsiteWeb
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  • Overview
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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Iron Ore
Mining Method
  • Truck & Shovel / Loader
Production Start...
Hamersley mines operation consists of Brockman 2, Brockman 4, Channar, Gudai-Darri, Marandoo, Mount Tom Price, Nammuldi, Paraburdoo, Silvergrass, Western Turner Syncline, Yandicoogina mines.


Owners

Source: p. 310
CompanyInterestOwnership
Rio Tinto plc 100 % Indirect
Hamersley Iron Pty Ltd. (operator) 100 % Direct

Contractors

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Deposit Type

  • Banded iron formation


Summary:

The Pilbara region comprises a large part of the ancient continental shield of Western Australia which is comprised of both Proterozoic and Archaean rocks. The Pilbara is overlain by the Proterozoics deposited in the Hamersley and Bangernall Provinces.

The BIF is a member of the ~620 m thick Brockman Iron Formation which makes up part of the 2.63 2.45 Ga Hamersley Group. The Hamersley Group comprises almost 2.5 km of consecutive sedimentary and volcanic rocks located within the ca. 80,000 km2 Hamersley Province of the Pilbara craton in North West Australia, approximately 1100 km north of Perth. In the lower part, it consists of dolomite, shale and BIF, while the upper part consists of dolerite, various lava types and BIF with minor amounts of tuffs and shales. Underlying the Hamersley Group, is the 2.78–2.63 Ga Fortescue Group, which consists of flood basalts and rhyolites. These volcanics were laid down on the uplifted and eroded Pilbara block. This volcanic succession may contain remnants of a Large Igneous Province (LIP).

The Brockman Iron Formation of the Hamersley Group is divided into four sub-lithostratigraphic units, namely the lowermost Dales Gorge Member (BIF), the Whaleback Shale Member, the Joffre Member (BIF), and the uppermost Yandicoogina Shale Member. After deposition, these laterally extensive BIF have all experienced minor folding and basinal uplift along with low-grade regional metamorphism – from burial prehnite–pumpellyite facies to ........


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


Processing

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Summary:

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Production:

CommodityUnits2022202120202019201820172016
Iron Ore kt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required220,612206,760205,902
All production numbers are expressed as lump & fines.
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Reserves at December 31, 2020:

CategoryTonnage CommodityGrade
Proven & Probable 2,052 Mt Iron Ore 61.1 %
Total Resource 10,295 Mt Iron Ore 59.9 %



Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Mar 13, 2023
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Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
Annual Report 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2019
Annual Report 2018
Sustainability Report 2018
Annual Report 2017
Press Release 2017
Annual Report 2016
Other 2016
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