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Australia
Brockman 2 Mine (Hamersley Iron Operation)

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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
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Iron Ore
Mining Method
  • Truck & Shovel / Loader
Processing
  • Crush & Screen plant
  • Desliming
  • Dry Screening
Brockman 2 mine is a part of Hamersley Iron operation.
Latest NewsRio Tinto hires CSI for Brockman 2 development     April 7, 2021


Owners

Source: p. 382
CompanyInterestOwnership
Rio Tinto plc 100 % Indirect
Hamersley Iron Pty Ltd. (operator) 100 % Direct
100% owned by Hamersley Iron Proprietary Limited (100% Rio Tinto Limited), held under the Mining Lease ML4SA.

Deposit Type

  • Banded iron formation
  • Detrital Iron (DID)


Summary:

The deposit contains both detrital and bedded-hosted iron mineralisation.

The detrital portion of the deposit is a Brockman Iron Formation-derived detrital iron deposit overlying the bedded Dales Gorge Member of the Archean Brockman Iron Formation.

The bedded-hosted portion of the deposit contains iron mineralisation which occurs as a highphosphorus Brockman Iron deposit with a weathering overprint.

The mineralisation extends 10 km along strike in an East – West direction, up to 1 km perpendicular to strike in a South - North direction and to a maximum depth of 230 m below the current topographical surface. The hydrated and detrital domains are mostly continuous with the pod-like bedded domains and the average depth varying.


Mining Methods

  • Truck & Shovel / Loader


Summary:

The Brockman 2 is an iron ore mine a part of Hamersley Iron Operation located in the Pilbara region of Western Australia, 60 kilometres north-west of Tom Price.

Mining Operations
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 ore is rescreened to remove undersize material. Reclaimed ore is conveyed along the wharf and the ore is loaded into the vessel’s holds by travelling, slewing and luffing shiploaders.


Crushing and Grinding


Processing

  • Crush & Screen plant
  • Desliming
  • Dry Screening

Source: Subscription required

Summary:

There are two existing dry crush and screen processing facilities and one existing wet desliming processing facility to which Brockman Syncline 2 – East Detrital ore could be fed. Product prediction regressions for both dry and wet processing routes are assigned to the designated domains, based on the most appropriate available metallurgical data generated from PQ-3 cores, WDC, winzes and production data.

The dry plants crush and screen the ore into dry lump and fines products.

The wet desliming plant scrubs, screens and deslimes the ore to produce washed lump and fines products. The plant was commissioned in early 2015.


Combined production numbers are reported under Hamersley Iron Operation


Reserves at December 31, 2020:

CategoryTonnage CommodityGrade
Proven 172 Mt Iron 62.3 %
Probable 98 Mt Iron 60.1 %
Proven & Probable 269 Mt Iron 61.5 %


Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required May 3, 2022
....................... Subscription required ....................... Subscription required Subscription required May 3, 2022
....................... Subscription required ....................... Subscription required Subscription required May 3, 2022
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2019
Annual Report 2018
Annual Report 2017
Annual Report 2016
Other 2016
Annual Report 2015
Other 2015
Other 2012
Subscription required - Subscription is required.

News:

NewsDate
Rio Tinto hires CSI for Brockman 2 development April 7, 2021

Aerial view:

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