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Australia
Mt Carlton Mine

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 Location:
136 km SE from Townsville, Queensland, Australia

  Regional Office:
Level 30 175 Liverpool Street
Sydney
Western Australia, Australia
2000
Phone  ...  Subscription required
Fax+61-2-9696-2901
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit / Underground
Commodities
  • Gold
  • Silver
  • Copper
Mining Method
  • Truck & Shovel / Loader
Processing
  • Gravity separation
  • Flotation
Mine Life2025
Mt Carlton successfully completed the initial underground mine development and plant upgrades with the underground operation commencing full production during March 2020, ahead of schedule and under project costs, which was a significant milestone for the asset.
Latest NewsEvolution sets Mt Carlton up for life extension     December 10, 2020


Owners

Source: p. 179
CompanyInterestOwnership
Evolution Mining Ltd. 100 % Indirect

Deposit Type

  • Epithermal


Summary:

The Mt Carlton project is a high sulphidation epithermal style deposit with mineralisation occurring within felsic volcanic rocks on the northern margin of the Permian Bowen Basin. The project is comprised of gold, silver and copper. Later andesitic volcaniclastics overlies a rhylotic sequence which in turn underlies a package of sediments and conglomerates. Mineralisation is structurally controlled which is exclusively hosted within the advanced argillic altered rhyodacite. Discrete and discontinuous steeply dipping ENE trending breccia dominated quartz - sulphosalt infilled veins form high grade bonanza lodes. Paragenetically, the sulphosalts replace sphalerite and galena which are associated with late stage copper sulphides. Coarse gold occurs as small grains (0.1 mm) at quartz-sulphide infill contacts and in sulphosalts. Basaltic/doleritic dykes which mirror pre existing structures cross cut mineralisation.


Mining Methods

  • Truck & Shovel / Loader


Summary:

Production is derived solely from the V2 deposit following the completion of the silver rich A39 deposit in FY14. The V2 deposit is flat lying and situated 20m to 180m below surface and is approximately 70m thick with a 500m by 500m areal extent. Open pit mining is by conventional drill and blast, load and haul methodologies, mining 5m benches in 2.5m.

Underground commenced full production in March 2020, three months ahead of schedule, to provide higher grade feed to the plant.

The low grade ore is blended with high grade ore to optimise concentrate grade generation matching the plant capability.


Crushing and Grinding
Crusher / Mill TypeModelSizePowerQuantity
Jaw crusher ....................... Subscription required 1
Cone crusher ....................... Subscription required 2
SAG mill ....................... Subscription required 7.32m x 3.8m 1
Regrind 2

Summary:

Crushing:
Primary crushing: TEREX JW42-AS849 Jaw Crusher

Grinding:
OUTOTEC 7.32m x 3.8m SAG mill. Forged steel 125mm balls and 105mm balls.

Screening:
LUDOWICI UHS-1-1200/300-2 (COF)

Recycle crusher:
2 x Sandvik CH420 cone crushers feed size 18 to 150mm.


Processing

  • Gravity separation
  • Flotation

Flow Sheet: Subscription required

Summary:

The Mt Carlton processing plant was commissioned in 2013 and ore is sourced from the V2 gold-copper-silver deposit which is processed on site to produce a concentrate and shipped to China for smelting. The process plant has a current capacity of 840ktpa. Approximately 10-15% of gold feed is recovered through a gravity circuit prior to the flotation circuit to produce dore gold bars which are sold to the ABC Refinery in Sydney. The gravity circuit was installed in 2017 and has lifted recoveries from 88% to 90-91%.

Recoveries & Grades:

CommodityParameter20202019201820172016
Gold Recovery Rate, %  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Gold Head Grade, g/t 3.045.35.615.335.71
Subscription required - Subscription is required.

Production:

CommodityUnits20202019201820172016
Gold oz  ......  Subscription required  ......  Subscription required  ......  Subscription required105,024113,056
Silver oz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Copper t  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
All production numbers are expressed as payable metal. ^ Guidance / Forecast.
Subscription required - Subscription is required.

Operational Metrics:

Metrics20202019201820172016
Ore tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required838 kt
Waste  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required3 Mt
Tonnes processed  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required837 kt
Annual processing capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required800 kt
Stripping / waste ratio  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Reserves at December 31, 2019:
Mineral Resource open pit cut-off 0.35 g/t, UG cut-off 2.55 g/t.
Ore Reserve open pit cut-off 1.8 g/t, UG cut-off 3.2 g/t.

CategoryTonnage CommodityGradeContained Metal
Proven 0.35 Mt Gold 1.06 g/t 12 koz
Probable 6.71 Mt Gold 1.38 g/t 299 koz
Proven & Probable 7.06 Mt Gold 1.37 g/t 311 koz
Measured 0.35 Mt Gold 1.06 g/t 12 koz
Indicated 8.85 Mt Gold 1.36 g/t 387 koz
Inferred 0.45 Mt Gold 1.33 g/t 19 koz
Total Resource 9.64 Mt Gold 1.35 g/t 418 koz

Commodity Production Costs:

CommodityUnits20202019201820172016
Credits (by-product) Gold AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required -216 / oz -132 / oz
Cash costs (sold) Gold AUD  ......  Subscription required†  ......  Subscription required†  ......  Subscription required† 308 / oz† 441 / oz†
Cash costs Gold AUD  ......  Subscription required†  ......  Subscription required†  ......  Subscription required† 307 / oz† 463 / oz†
All-in sustaining costs (sold) Gold AUD  ......  Subscription required†  ......  Subscription required†  ......  Subscription required† 622 / oz† 742 / oz†
All-in costs Gold AUD  ......  Subscription required†  ......  Subscription required†  ......  Subscription required† 762 / oz† 820 / oz†
^ Guidance / Forecast.
† Net of By-Product.
Subscription required - Subscription is required.

Financials:

Units20202019201820172016
Capital expenditures (planned) M AUD
Sustaining costs M AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Capital expenditures M AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Revenue M AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
EBITDA M AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Operating Cash Flow M AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required


Heavy Mobile Equipment as of December 31, 2020:
HME TypeModelQuantity
Cable bolter ....................... Subscription required 1
Dozer ....................... Subscription required 1
Drill ....................... Subscription required 1
Drill ....................... Subscription required 2
Drill (long hole) ....................... Subscription required 1
Excavator ....................... Subscription required 2
Grader ....................... Subscription required 1
Grader ....................... Subscription required 1
Grader ....................... Subscription required 1
Jumbo ....................... Subscription required 2
Loader ....................... Subscription required 2
Loader ....................... Subscription required 1
Loader ....................... Subscription required 1
Loader ....................... Subscription required 1
Loader ....................... Subscription required 2
Truck (dump) ....................... Subscription required 2
Truck (dump) ....................... Subscription required 2
Truck (dump) ....................... Subscription required 2
Truck (dump) ....................... Subscription required 4
Truck (water) ....................... Subscription required 1
Subscription required - Subscription is required.

Mine Management:

Job TitleNamePhoneProfileRef. Date
....................... Subscription required ....................... Subscription required ....................... Subscription required Subscription required Feb 12, 2021
....................... Subscription required ....................... Subscription required Subscription required Feb 12, 2021
....................... Subscription required ....................... Subscription required Subscription required Feb 12, 2021
....................... Subscription required ....................... Subscription required Subscription required Feb 12, 2021
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2020
Subscription required 2018
Subscription required 2017
Subscription required 2016

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2018
................................... Subscription required 2018
................................... Subscription required 2018
................................... Subscription required 2018
Annual Report 2017
Fact Sheet 2017
Annual Report 2016
Fact Sheet 2016
Subscription required - Subscription is required.

News:

NewsDate
Evolution sets Mt Carlton up for life extension December 10, 2020
Evolution gives Mt Carlton underground development green light October 11, 2018

Aerial view:

Subscription required - Subscription is required.

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