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Australia
Sunrise Dam Mine

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 Location:
50 km S from Laverton, Western Australia, Australia

  Regional Office:
Level 10/140 St Georges Terrace
Perth
Western Australia, Australia
6000
Phone  ...  Subscription required
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeUnderground
Commodities
  • Gold
Mining Method
  • Truck & Shovel / Loader
  • Sub-level stoping
  • Open stoping
  • Backfill
Processing
  • Gravity separation
  • Carbon re-activation kiln
  • Centrifugal concentrator
  • Crush & Screen plant
  • ACACIA reactor
  • Flotation
  • Carbon in leach (CIL)
  • Elution
  • Carbon adsorption-desorption-recovery (ADR)
  • Cyanide (reagent)
Sunrise Dam added 0.7Moz Mineral Resource and 0.4Moz to Ore Reserve in 2021 (pre-depletion)
Latest NewsDDB secures AngloGold Ashanti, GWR contracts     November 23, 2020


Owners

Source: p. 3
CompanyInterestOwnership
AngloGold Ashanti Ltd. 100 % Indirect

Deposit Type

  • Vein / narrow vein
  • Breccia pipe / Stockwork
  • Sediment-hosted
  • Mesothermal


Summary:

Sunrise Dam is considered to be a mesothermal gold deposit, typical of many orebodies found in the Archaean greenstone belts of Western Australia.

At Sunrise Dam, gold mineralisation is structurally controlled and vein hosted. The style of mineralisation can be differentiated depending on the structure or environment in which it is hosted. There are three dominant styles recognised:
- Shear-related and high strain e.g. Sunrise Shear Zone
- Stockwork development in planar faults with brittle characteristics (these occur in all rock types and are commonly concentrated at contacts within the volcanic stratigraphy or the porphyry margin and within hinge positions within the magnetite shales) e.g. Cosmo, Dolly and Vogue orebodies
- Placer-style mineralisation hosted within the fluvial sediments


Mining Methods

  • Truck & Shovel / Loader
  • Sub-level stoping
  • Open stoping
  • Backfill


Summary:

Sunrise Dam is an active underground and open pit mine that is located approximately 205km north-northeast of Kalgoorlie and 55km south of Laverton in Western Australia.

Mining at Sunrise Dam consists of both surface and underground operations. Open pit production began in 1997 and the main pit (Cleo) completed at a final depth of 500m below surface in 2014. Underground mining commenced in 2003 with a number of different mining methods being applied, depending on the style of mineralisation and grade of the geological domain. In 2021, mining commenced at the Golden Delicious satellite pit using open cut mining methods.

The underground mining is carried out by specialised underground contractors (Barminco). The mining methods employed are domain-dependent and relate to the style of mineralisation. Sublevel open stoping methods are the preference in areas where bulk mineralisation occurs (GQ, Cosmo, Dolly, and Vogue). Other areas (Cos East, Sunrise Shear, and Astro) use narrow open-stoping methods. Where possible, all waste from infrastructure development is used to backfill mined stopes.

The open pit mining is also carried out by specialised mining contractors (Carey Mining), and consists of conventional drill and blast and load and haul activities, with ore stockpiled on the surface near the pit crest and overhauled to the ROM pad with the waste material reporting to external waste dumps.

Large surface low-grade stockpiles are used to supplement the mill feed.

Mine infrastructure is including a fully functional camp, process plant, tailings facility, gas pipeline, power plant and electrical reticulation, offices, airstrip, and road system.


Crushing and Grinding
Flow Sheet: Source
Crusher / Mill TypeModelSizePowerQuantity
Jaw crusher 1
Cone crusher 3
Ball mill 3


Processing

  • Gravity separation
  • Carbon re-activation kiln
  • Centrifugal concentrator
  • Crush & Screen plant
  • ACACIA reactor
  • Flotation
  • Carbon in leach (CIL)
  • Elution
  • Carbon adsorption-desorption-recovery (ADR)
  • Cyanide (reagent)

Flow Sheet: Subscription required

Summary:

Processing at Sunrise Dam is via a conventional three-stage crushing / two-stage milling CIL circuit, with a pyrite flotation and ultrafine grinding circuit commissioned in 2018. The gravity circuit recovers approximately 30% of the gold, with the CIL circuit and Anglo American Research Laboratories (AARL) elution used to recover the remainder. Electrowinning recovers gold from the Acacia™ reactor and eluted to produce gold doré. The plant throughput at Sunrise Dam is 4.1Mtpa.

Final milled product reports to a flotation circuit where sulphide minerals and gold are concentrated to produce a flotation concentrate product.

The flotation concentrate is thickened in a dedicated concentrate thickener and reports to a high intensity grind (HIG) mill, the ground product from which is combined with the flotation tailings and pumped to the pre-leach thickener. The thickener
underflow is pumped to the carbon-in-leach (CIL) ci ........

Recoveries & Grades:

CommodityParameter2021202020192018201720162015
Gold Head Grade, g/t  ......  Subscription required  ......  Subscription required  ......  Subscription required2.732.021.981.97

Production:

CommodityUnits2021202020192018201720162015
Gold koz  ......  Subscription required  ......  Subscription required  ......  Subscription required289238228216
Subscription required - Subscription is required.

Operational Metrics:

Metrics202120202019201820172016
Tonnes processed  ......  Subscription required  ......  Subscription required4.1 Mt4 Mt4 Mt4 Mt
Annual processing capacity  ......  Subscription required  ......  Subscription required3.8 Mt
Subscription required - Subscription is required.

Reserves at December 31, 2021:
Reserves cut-off grades are 0.75 g/t Au for Golden Delicious, 1,65 g/t Au for stockpile and 1.65 g/t Au for underground.

CategoryTonnage CommodityGradeContained Metal
Proven & Probable 21.58 Mt Gold 1.88 g/t 1.31 M oz
Total Resource 73.58 Mt Gold 1.94 g/t 4.58 M oz

Commodity Production Costs:

CommodityUnits2021202020192018201720162015
Total cash costs Gold USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 920 / oz 919 / oz 926 / oz 970 / oz
All-in sustaining costs (AISC) Gold USD  ......  Subscription required  ......  Subscription required
All-in sustaining costs (sold) Gold USD  ......  Subscription required 1,223 / oz 1,203 / oz 1,080 / oz 1,110 / oz
Subscription required - Subscription is required.

Financials:

Units2021202020192018201720162015
Growth Capital M USD  ......  Subscription required
Capital expenditures M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required79   62   32   29  
Subscription required - Subscription is required


Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required May 11, 2022
....................... Subscription required ....................... Subscription required Subscription required May 11, 2022
....................... Subscription required ....................... Subscription required Subscription required May 11, 2022
....................... Subscription required ....................... Subscription required Subscription required May 11, 2022
Subscription required - Subscription is required.

Staff:

EmployeesContractorsTotal WorkforceYear
Subscription required Subscription required Subscription required 2021
Subscription required Subscription required Subscription required 2020
Subscription required Subscription required Subscription required 2019
Subscription required Subscription required Subscription required 2018
Subscription required Subscription required Subscription required 2017
Subscription required Subscription required Subscription required 2016
Subscription required Subscription required Subscription required 2015
Subscription required Subscription required Subscription required 2014

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
Annual Report 2018
Fact Sheet 2018
Year-end Mineral Reserves 2018
Annual Report 2017
Year-end Mineral Reserves 2017
Annual Report 2016
Corporate Presentation 2016
Year-end Mineral Reserves 2016
Annual Report 2015
Sustainability Report 2014
Subscription required - Subscription is required.

News:

NewsDate
DDB secures AngloGold Ashanti, GWR contracts November 23, 2020

Aerial view:

Subscription required - Subscription is required.

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