Australia

Darlot Mine

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Categories

Overview

Mine TypeUnderground
StatusActive
Commodities
  • Gold
Mining Method
  • Longhole stoping
Backfill type ... Lock
Production Start... Lock
Mine Life... Lock
SnapshotSince FY2023, Darlot underground mine is part of the King of the Hills (KOTH) Operations.

In July 2022, the Darlot process plant and Great Western open pit mine (satelite of Darlot underground mine) were placed into care and maintenance.

Following the completion of King of the Hills processing plant, Darlot has transitioned from a central processing facility to become a satellite underground mine to King of the Hills.

Deliveries of ore from the Darlot satellite underground mine to King of the Hills process plant began in August 2022.
Related AssetKing of the Hills (KOTH) Operation

Owners

SourceSource
CompanyInterestOwnership
Darlot Mining Company (Pty) Ltd. (operator) 100 % Direct
Red 5 Ltd. 100 % Indirect
The mine is operated through Red 5’s 100%-owned subsidiary company, Darlot Mining Company Pty Ltd.

Contractors

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Deposit type

  • Vein / narrow vein
  • Hydrothermal
  • Porphyry

Summary:

The Darlot lodes are considered to be part of an Archean hydrothermal fault-vein deposit with many similar characteristics with other deposits within the Yilgarn Craton, namely host rock type and nature of hydrothermal alteration; however, it is atypical in being relatively flat-lying rather than steeply dipping. Felsic porphyries and lamprophyre intrusions are encountered throughout the deposit. The major host for gold mineralisation is the Mount Pickering Dolerite. Gold mineralisation is associated with quartz veins and alteration haloes controlled by major D2 and D3 structures or secondary splays and cross-linking structures. The quartz veins are hosted mainly by magnetic dolerite and magnetic quartz dolerite rock types and, to a lesser extent, by non-magnetic dolerite and felsic volcano sedimentary rock types. Lamprophyre intrusions are present in the area with a variety of orientations. In most cases the lamprophyres are thought to be pre-mineralisation but are an un-favourable host rock for mineralisation and in most cases are barren. Mineralisation is hosted by a fractionated Dolerite sill within the greater Mt Pickering dolerite syncline, with silica+/-albite+/- carbonate+/-pyrite+/-gold being the key alteration components. St George is part of the Darlot Gold Mine, and the interpretation is based largely on the Centenary style mineralisation that is also in part associated with the Oval and Burswood Faults, with minimal supergene enrichment. St George Mineral Resource has not been mined due to unfavourable economics in the past, however an economic review is still to be completed. In the St George area, the mineralisation crosses lithological boundaries and is present in the mixed basalt, dolerite and felsic porphyry (MD and FAP) domains. The St George gold mineralisation is located about the Oval and Burswood Faults and is associated with quartz veins and alteration haloes controlled by major D2 and D3 structures, secondary splays and cross-linking structures such as the echelon tension gash arrays as a result of oblique reverse movement on the faults stated above.

Reserves

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Mining Methods

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Comminution

Crushers and Mills

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Processing

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Production

The Darlot processing plant continued to operate at full capacity throughout April 2022. The stockpiles of ore from Great Western were then re-directed to the KOTH ROM as commissioning feed stock for the KOTH processing plant. During May and June, Darlot processed ore originating from the Darlot underground only.
CommodityUnits20222021202020192018201720162015
Gold koz  ....  Subscribe  ....  Subscribe  ....  Subscribe102*48*396678
All production numbers are expressed as metal in doré. * Combined production for Darlot Mine and King of the Hills (KOTH) Operation

Operational metrics

Metrics202320222021202020192018201720162015
Ore tonnes mined  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe497 kt449 kt414 kt
Annual processing capacity  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe0.83 Mt0.83 Mt0.83 Mt0.8 Mt0.8 Mt
Tonnes milled  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe
Waste  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe186.6 kt226 kt
Total tonnes mined  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe635 kt640 kt
Tonnes processed  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe453.7 kt457 kt

Production Costs

CommodityUnits2017
All-in sustaining costs (sold) Gold USD 1,432 / oz **  
All-in costs Gold USD 1,432 / oz **  
** Net of By-Product.

Financials

Units2022
Capital expenditures M AUD  ....  Subscribe
Revenue M USD
Operating Income M USD
Gross profit M USD

Heavy Mobile Equipment

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Personnel

Mine Management

Job TitleNamePhoneEmailProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Nov 17, 2023
....................... Subscription required ....................... Subscription required ........... Subscription required ........... Subscription required Subscription required Nov 17, 2023
....................... Subscription required ....................... Subscription required Subscription required Nov 17, 2023
....................... Subscription required ....................... Subscription required Subscription required Nov 17, 2023
....................... Subscription required ....................... Subscription required Subscription required Nov 17, 2023

EmployeesTotal WorkforceYear
...... Subscription required 2023
...... Subscription required 2021
...... Subscription required 2020
...... Subscription required 2019
...... Subscription required 2018
...... Subscription required 2017

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