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Australia
Fortnum Gold (FGO) Operation

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 Location:
142 km N from Meekatharra, Western Australia, Australia

  Address:
Level 6
197 St Georges Terrace
Perth
Western Australia, Australia
6000
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Fax+61-8-9462-3499
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Overview

StageProduction
Mine TypeUnderground
Commodities
  • Gold
Mining Method
  • Sub-level caving
  • Sub-level open stoping (SLOS)
  • Longhole stoping
  • Bench stoping
  • Paste backfill
Production Start...
Mine Life7 years (as of Jan 1, 2022)
Fortnum Gold Operations (FGO) encapsulate the historic mining centres of Labouchere, Fortnum, Horseshoe and Peak Hill. The FGO processing hub incorporates the 0.9 Mtpa Fortnum carbon-in-leach (CIL) processing plant.


Owners

Source: p. 10
CompanyInterestOwnershipInvestor's Info
Westgold Resources Ltd. 100 % Indirect
The Fortnum Gold Project tenure is 100% owned by Westgold through subsidiary company Aragon Resources Pty.Ltd.

Contractors

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Deposit Type

  • Breccia pipe / Stockwork


Summary:

The Fortnum deposits are Paleoproterozoic shear-hosted gold deposits within the Fortnum Wedge, a localised thrust duplex of Narracoota Formation within the overlying Ravelstone Formation. Both stratigraphic formations comprise part of the Bryah Basin in the Capricorn Orogen, Western Australia.

The Horseshoe Cassidy deposits are hosted within the Ravelstone Formation (siltstone and argillite) and Narracoota Formation (highly-altered, moderate to strongly deformed mafic to ultramafic rocks). The main zone of mineralisation is developed within a horizon of highly altered magnesian basalt. Gold mineralisation is associated with strong vein stockworks that are confined to the altered mafic. Alteration consists of two types: stockwork proximal silica-carbonate-fuchsite-haematite-pyrite and distal silicahaematite-carbonate+/- chlorite.

The Peak Hill district represents remnants of a Proterozoic fold belt comprising highly deformed trough and shelf sediments and mafic / ultramafic volcanics, which are generally moderately metamorphosed (except for the Peak Hill Metamorphic Suite).

The Starlight ore system is mined underground and has a number of lodes varying in strike and width from 5-150m and 1-40m respectively. The wider zones resulting from the bulking of lodes.

The Yarlarweelor mineral resource extends over 1,400m in strike length, 570m in lateral extent and 190m in depth.

The Tom’s and Sam’s mineral resource extends over 65 ........


Mining Methods

  • Sub-level caving
  • Sub-level open stoping (SLOS)
  • Longhole stoping
  • Bench stoping
  • Paste backfill


Summary:

Mining output is currently dominated by the Starlight underground mine with supplementary, free on surface low grade stocks providing a blended feedstock to the plant.

FGO continues to deliver strong profit from the Starlight underground mine and additional mill feed sourced from large, existing low-grade surface stockpiles. This year saw expanded production in the Starlight mine including the Moonlight, Twilight North and Trev’s lodes.

In addition, Westgold is evaluating potential open pit opportunities to supplement underground ore sources at FGO increasing the ore optionality and mine life across this underexplored tenement package.

Underground
In large disseminated orebodies sub level caving, sub level open stoping or single level bench stoping production methodologies are used. In narrow vein laminated quartz hosted domains a conservative narrow bench style mining method is used. In narrow flat dipping deposits a Flat Long Hole process is adopted (with fillets in the footwall for rill angle) and or jumbo stoping. Minimum mining widths have been applied in the various mining methods.


Crushing and Grinding
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Processing

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Summary:

- subscription is required.


Production:

CommodityUnits2023202220212020201920182017
Gold oz  ......  Subscription required ^  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required41,8202,061
All production numbers are expressed as metal in doré. ^ Guidance / Forecast.
Subscription required - Subscription is required.

Operational Metrics:

Metrics202220212020201920182017
Ore tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required868,145 t606,449 t47,931 t
Tonnes processed  ......  Subscription required  ......  Subscription required  ......  Subscription required849,853 t845,180 t70,505 t
Annual processing capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Reserves at June 30, 2022:

CategoryTonnage CommodityGradeContained Metal
Proven 1,166 kt Gold 1.81 g/t 68 koz
Probable 4,347 kt Gold 1.84 g/t 258 koz
Proven & Probable 5,512 kt Gold 1.84 g/t 325 koz
Measured 2,137 kt Gold 2.86 g/t 197 koz
Indicated 14,042 kt Gold 1.85 g/t 836 koz
Inferred 4,473 kt Gold 2.08 g/t 300 koz
Total Resource 20,651 kt Gold 2.01 g/t 1,332 koz

Commodity Production Costs:

CommodityUnits202220212020201920182017
All-in sustaining costs (AISC) Gold AUD  ......  Subscription required†  ......  Subscription required†  ......  Subscription required†  ......  Subscription required† 1,387 / oz†   60 / oz†  
C1 cash costs Gold AUD  ......  Subscription required†  ......  Subscription required†  ......  Subscription required†  ......  Subscription required† 1,266 / oz†   60 / oz†  
All-in costs Gold AUD  ......  Subscription required†  ......  Subscription required†  ......  Subscription required† 2,087 / oz†   14,952 / oz†  
C2 total cash costs Gold AUD  ......  Subscription required†
† Net of By-Product.
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Financials:

Units202220212020201920182017
Capital expenditures M AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 32.1   31.8  
Revenue M AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 69.8  
Gross profit M AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
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Proposed Heavy Mobile Equipment as of July 15, 2016:
HME TypeSizeLeased or
Contractor
Backhoe 120 t Leased
....................... Subscription required ....................... Subscription required Leased
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Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Nov 9, 2022
....................... Subscription required ....................... Subscription required Subscription required Nov 9, 2022
....................... Subscription required ....................... Subscription required Subscription required Nov 9, 2022
....................... Subscription required ....................... Subscription required Subscription required Nov 9, 2022
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2022
Subscription required 2021

Corporate Filings & Presentations:

DocumentYear
Annual Report 2022
Other 2022
Sustainability Report 2022
Year-end Mineral Reserves 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Annual Report 2018
Annual Report 2017
Mine Operations Plan 2016
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