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Australia
Iron Baron Mine

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 Location:
37 km W from Whyalla, South Australia, Australia

  Regional Office:
Level 28, 88 Phillip Street
Sydney
New South Wales, Australia
2000
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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 (hematite)
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life2024
Mining in the Iron Baron Mining Area (IBMA) began in 1933 and continued until the late 1990s at which time the mine site was closed, and rehabilitation work was undertaken. IBMA activities recommenced with the construction of the ore beneficiation plant (OBP) in November 2010. Mining operations recommenced in November 2011.

Iron Baron Mining Area (IBMA) includes Iron Baron, Iron Baron East, Iron Prince North, Iron Prince South, Big Baron, Iron Queen, Little Baron, Wizard, Baroness, Empress, Sultan and Warrior, Bark Hills, Sheoak, Adder Hills pits.


Owners

Source: p. 28
CompanyInterestOwnership
Gupta Family Group ("GFG") Alliance 100 % Indirect
SIMEC Mining (operator) 100 % Direct
Tenement holder and operator - OneSteel Manufacturing Pty Ltd (operating as SIMEC Mining). SIMEC Mining is a business of OneSteel Manufacturing Pty Ltd which is a company in the GFG Alliance.

Contractors

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Deposit Type

  • Metamorphic
  • Alluvial / Placer
  • Banded iron formation
  • Stratabound


Summary:

The Iron Baron mining area (IBMA) lies at the northern end of the Middleback Ranges (MBR). The local geology in the vicinity of the IMBA, as described in SIMEC Mining (2015a) is as follows:

Hematite in the MBR occurs as stratabound Palaeoproterozoic deposits of the Lower Middleback Iron Formation (LMIF), which is part of the Hutchison Group. The Hutchison Group forms part of the Cleve Subdomain of the Gawler Craton, and lies on its western edge. The Cleve Subdomain comprises tightly folded, high-grade metamorphic rocks that are mainly derived from marine shelf sediments and mafic and acidic volcanics (Parker 2012). The Hutchison Group in the MBR is composed of the Warrow Quartzite and the Middleback Subgroup, although the Warrow Quartzite is not identified at all locations. The Middleback Subgroup comprises the Katunga Dolomite, the LMIF, the Cook Gap Schist and the Upper Middleback Iron Formation (UMIF). The LMIF hosts the Middleback Ranges’ hematite deposits.

MBR iron ores formed through supergene enrichment; a process which selectively dissolved waste minerals and replaced them with iron ore mineralisation. Preferential enrichment occurred in carbonate facies iron formation, dolomitic marble and, to a lesser degree, silicate facies iron formation. The silicates were much less soluble than the carbonates, and resulted in patchy mineralisation in the silicate iron facies (Yeates 1990). Magnetite was recrystallised and remobilised during a period of me ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

Operations within the Iron Baron Mining Area (IBMA) in 2020 included hematite mining in the Iron Queen, Warrior and Cavalier pits, crushing, screening, ore beneficiation, train loading and tailings deposition in the South Prince pit.

This section provides a general summary of mining activities within the IBMA that are similar across each of the different mining areas that make up the IBMA e.g. Central IBMA, Iron Cavalier, Iron Queen, Iron Sultan, BSA mining area, Iron Warrior and Scree deposits.

Mining Methods
Mining at the IBMA, with the exception of free-dig scree ore mining, is a traditional open pit hard rock mining operation using an interrupted drill, blast, load and haul cycle to remove overburden (waste rock) and expose and haul ore for crushing, screening and processing, into a primary lump and fines product for export.

Pit design is a conventional layout of angled batters (between 50º to 60º) and flat berms (between 8 to 12 m in width). The bench height varies from 6 m to 8 m and the height between berms varies from between 12 to 24 m. The batter angle, berm width and the height between berms give the overall slope angle (from pit crest to pit toe). This angle is critical to successful mining and is determined by rigorous geotechnical engineering considerations.

Ramps for pits and WRDs will generally have a gradient of no more than 1:10.

The general shape of a pit, and whether there are any stages (i.e ........


Crushing and Grinding
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Processing

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Summary:

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Operational Metrics:

Metrics20212020
Ore tonnes mined  ......  Subscription required  ......  Subscription required
Waste  ......  Subscription required  ......  Subscription required
Tonnes processed  ......  Subscription required  ......  Subscription required
Annual production capacity  ......  Subscription required  ......  Subscription required
^ Guidance / Forecast.
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Reserves at June 1, 2016:

CategoryTonnage Commodity
Proven 3.39 Mt Iron (hematite)
Probable 13.04 Mt Iron (hematite)
Proven & Probable 16.43 Mt Iron (hematite)
Measured 2.8 Mt Iron (hematite)
Indicated 67.47 Mt Iron (hematite)
Inferred 20.35 Mt Iron (hematite)
Total Resource 89.62 Mt Iron (hematite)



Heavy Mobile Equipment as of December 9, 2020:
HME TypeModelSizeQuantityStatusLeased or
Contractor
Dozer ....................... Subscription required ....................... Subscription required Existing Leased
Dozer ....................... Subscription required ....................... Subscription required Existing Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed
Excavator ....................... Subscription required 190 t ....................... Subscription required Existing Leased
Grader ....................... Subscription required ....................... Subscription required Existing Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed
Loader (FEL) ....................... Subscription required ....................... Subscription required Existing Leased
Loader (FEL) ....................... Subscription required ....................... Subscription required Existing Leased
Truck (fuel / lube) ....................... Subscription required Existing Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed
Truck (haul) ....................... Subscription required 100 t ....................... Subscription required Existing Leased
Truck (haul) ....................... Subscription required ....................... Subscription required Existing Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed
Truck (water) ....................... Subscription required ....................... Subscription required Existing Leased
Subscription required - Subscription is required.

Mine Management:

Job TitleNamePhoneEmailProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Apr 25, 2022
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required Subscription required Apr 25, 2022
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required Subscription required Apr 25, 2022
....................... Subscription required ....................... Subscription required Subscription required Apr 25, 2022
....................... Subscription required ....................... Subscription required Subscription required Apr 25, 2022
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2020

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
Corporate Presentation 2018
Subscription required - Subscription is required.

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