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Australia
Ironbark No. 1 (Ellensfield) Mine

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 Location:
32 km NE from Moranbah, Queensland, Australia

  Address:
Level 20, 324 Queen Street
Brisbane
Queensland, Australia
4000
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  • Overview
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Overview

StageProduction
Mine TypeUnderground
Commodities
  • Coal (metallurgical & thermal)
Mining Method
  • Longwall
  • Bord-and-pillar
Production Start...
Mine Life20 years (as of Jan 1, 2022)
The Ironbark No.1 operation achieved first coal in August 2022 just seven months after commencing construction in January 2022. First longwall coal from the mine is projected to commence in late 2023. At full production, Ironbark No.1 is expected to have a ~ 360 strong workforce.


Owners

Source: p. 6
CompanyInterestOwnership
Fitzroy Australia Resources Pty Ltd. 100 % Indirect
Fitzroy acquired the mine in November 2016.

Contractors

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Deposit Type

  • Sedimentary


Summary:

The Ironbark No. 1 Coal Mine is located in the northern Bowen Basin coalfields in Central Queensland.

At a regional scale, the target Rangal Coal Measures sub-crop to the north-west of the Ironbark No. 1 Coal Mine. The Rewan Formation covers the property with the overlying Clematis Group outcropping in the Carborough Range to the east. The underlying Fort Cooper Coal Measures and the upper Yarrabee Tuff marker band occur below the Rangal Coal Measures at mineable depths.

Rangal Coal Seam Geology.
The Leichhardt and Vermont Seams of the Rangal Coal Measures form the principal economic coal resources in the Ironbark No. 1 Coal Mine. A high gamma marker occurs immediately below the floor of the Vermont Upper Seam and it is interpreted to be the Yarrabee Tuff. The Yarrabee Tuff averages 0.5m thick. This tuff marks the interpreted top of the Fort Cooper Coal Measures.

Leichhardt Seam.
The Leichhardt Seam is typically 4.5 - 5.0m thick, thinning towards the southern boundary of the deposit.

The Leichhardt Seam has typically been divided into four plies, Q1 to Q4, however up to seven plies have been logged in some holes. The uppermost ply, Q1, is dull and high ash (30% - 40% ash) and often has calcite veining and is noted to be comparatively strong. This ply is planned to be left as roof due to coal quality and strata control benefits.

The coal below the Q1 is the principal target working section (LHDWS). For modelling ........


Mining Methods

  • Longwall
  • Bord-and-pillar


Summary:

The Ironbark No. 1 Coal Mine will develop an underground coal mine which will utilise the longwall and bord and pillar mining techniques to extract the Leichhardt Seam.

Following the grant of all necessary approvals, construction and mine development activities are planned to occur from Year 1. Underground development activities are anticipated to occur for the following three years, with longwall production planned to commence within five years from the grant of the ML The operational workforce will work on a seven day, two or three staggered shifts, rotating roster. There will be two to three shifts in a 24-hour period with approximately 80 to 120 persons per shift.

The target Leichardt coal seam will be accessed via drift entries from the initial boxcuts in the north of the MLA area. There will be three access points into the seam: a conveyor portal, men and materials portal and a ventilation shaft.

Heavy earth moving equipment will be used for overburden removal for the initial boxcuts. The mine plan is based around 22 longwall panels with access via mains and gateroads driven by continuous miners. The longwall panels range from 205m - 340m wide.

The longwall panels have been refined in location, length, width and depth following the 3D seismic analyses and interpretation. The mine plan incorporates the geological faulting across the Project area to present an accurate location of the longwall panels to be mined. In areas wher ........


Crushing and Grinding


Processing

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Summary:

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Production:

CommodityUnitsAvg. Annual (Projected)LOM (Projected)
Coal (metallurgical & thermal) t 2,118,29940,247,688
All production numbers are expressed as clean coal.


Reserves at October 25, 2017:

CategoryTonnage Commodity
Measured 61 Mt Coal (metallurgical & thermal)
Indicated 148 Mt Coal (metallurgical & thermal)
Inferred 150 Mt Coal (metallurgical & thermal)
Total Resource 359 Mt Coal (metallurgical & thermal)



Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Dec 16, 2022
....................... Subscription required ....................... Subscription required Subscription required Dec 16, 2022
....................... Subscription required ....................... Subscription required Subscription required Dec 16, 2022
....................... Subscription required ....................... Subscription required Subscription required Dec 16, 2022
....................... Subscription required ....................... Subscription required Subscription required Dec 16, 2022
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Corporate Filings & Presentations:

DocumentYear
Other 2022
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
Technical Report 2017
Other 2016
Environmental Assessment 2012
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Subscription required - Subscription is required.

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