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Australia
Chichester Hub Operation (Christmas Creek Mine, Cloudbreak Mine) (FMG Operation)

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 Location:
70 km SW from Nullagine, Western Australia, Australia

  Address:
Level 2, 87 Adelaide Terrace
East Perth
Western Australia, Australia
6004
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Fax+61-8-6218-8880
WebsiteWeb
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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Iron Ore
Mining Method
  • Surface miner
  • Strip mining (roll-over)
  • Truck & Shovel / Loader
  • Backfill
Production Start...
Chichester Hub - Fortescue’s mining hub with two operating iron ore mines, Cloudbreak and Christmas Creek.


Owners

Source: p. 24,111
CompanyInterestOwnershipInvestor's Info
Fortescue Metals Group Ltd. 100 % Indirect
Chichester Metals Pty Ltd (operator) 100 % Direct
Fortescue’s wholly owned and integrated operations in the Pilbara include the Chichester (Cloudbreak and Christmas Creek).

Contractors

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Deposit Type

  • Banded iron formation
  • Channel Iron (CID)


Summary:

The Cloudbreak, Christmas Creek and Kutayi deposits lie within the Chichester Ranges, in northern Western Australia. Iron mineralisation is hosted by the Nammuldi Member which is the lowest member of the late Archaean aged Marra Mamba Iron Formation (MMIF). The Nammuldi Member is characterised by extensive, thick and podded iron rich bands, separated by equally extensive units of siliceous and carbonate rich chert and shale. The Nammuldi Member in the Chichester Range is interpreted to be up to 60 metres in true thickness. Underlying the Nammuldi Member rocks are black shales and volcanic rocks belonging to the Jeerinah Formation. Extended periods of tectonic activity have variably folded and faulted these rocks, together with weak metamorphism. Subsequent erosion and hardcapping or lateritic processes have altered these rocks, and present outcrop of Nammuldi Member represents a ridge of lowlying hills (relief up to 30 metres) throughout the prospect areas. These ridges are recognised as the Chichester Ranges.

Drilling within the prospects has proved that the Nammuldi target horizon extends below cover away from the hills. In these regions (recognised mineralisation has been intersected more than 6 kilometres from the outcrop) the target iron formation can be overlain by Tertiary age colluvium and alluvium (younger than 65 Million years). This colluvium can contain both cemented and un- cemented detrital products of iron enriched material, BIF, chert and shale wit ........


Mining Methods

  • Surface miner
  • Strip mining (roll-over)
  • Truck & Shovel / Loader
  • Backfill


Summary:

Chichester Hub in the Chichester Ranges includes the Cloudbreak and Christmas Creek mines.

At Cloudbreak the Bigge development entered production in Q3 FY22. Bigge expands Cloudbreak further west and contributes low strip ratio material which supports the overall Fortescue product strategy.

Cloudbreak
The mining model is based on strip mining. Mining at Cloudbreak will continue to be carried out as open pit strip mining.

The pits are developed progressively, where a starter pit is opened (with overburden from the starter pit placed in a small overburden stockpile). As the mining face progresses, the open pit is progressively backfilled and rehabilitated.

The majority of the ore will be mined using surface miners. Surface miners can cutto an accuracy of 0.1 m and can extract ore without the need for drilling, blasting, or primary crushers to crush ore. Ore is loaded from the surface miner into trucks for transfer to the OPF.

Christmas Creek
Drill and blast
Drilling and blasting is used to allow areas of hard rock overburden to be removed. Drilling and blasting is undertaken in accordance with current operational procedures, which generally incorporate the following steps:
1. A series of holes are drilled into the rock.
2. The holes are filled with explosives and detonated.
3. The rock breaks up or collapses after detonation and the rock rubble is then removed.
4. The cleared rock face i ........


Crushing and Grinding
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Processing

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Summary:

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Combined production numbers are reported under FMG Operation

Operational Metrics:

Metrics202220212020201920182017
Annual production capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required100 Mt of iron ore lump & fines95 Mt of iron ore lump & fines100 Mt of iron ore lump & fines
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Reserves at June 30, 2022:
Chichester Hub Mineral Resources are quoted above a cut-off of 53.5% Fe.
Ore Reserve: Cloudbreak 53.0% Cut-Off Grade (%Fe), Christmas Creek 53.0% Cut-Off Grade (%Fe).

CategoryTonnage CommodityGrade
Proven 606 Mt Iron (hematite) 57.3 %
Probable 471 Mt Iron (hematite) 57.1 %
Proven & Probable 1,078 Mt Iron (hematite) 57.2 %
Measured 1,008 Mt Iron (hematite) 56.8 %
Indicated 848 Mt Iron (hematite) 56.1 %
Inferred 432 Mt Iron (hematite) 55.7 %
Total Resource 2,288 Mt Iron (hematite) 56.3 %



Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
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Corporate Filings & Presentations:

DocumentYear
Annual Report 2022
Year-end Mineral Reserves 2022
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Annual Report 2018
Annual Report 2017
Annual Report 2016
Environmental Assessment 2014
Environmental Assessment 2011
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