• Data Access
  • Your Email  
  • Your Email  
Keep me signed in.
Forgot your password?
Close
  • Forgot Your Password?
  • Enter the email you signed up with and we'll email it to you.
  • Your Email  
Close
Back
MDO
Mining Data Solutions
  • Home
  • Database
  • Subscribe
  • Sign In
  • Sign In
Australia
East Kundana (EKJV) Mine

This page is not tailored to
devices with screen width under 750 px.
 Location:
21 km W from Kalgoorlie, Western Australia, Australia

  Regional Office:
Level 24 175 Liverpool Street
Sydney
New South Wales, Australia
2000
Phone  ...  Subscription required
Fax+61-2-9696-2901
Additional Resources for Suppliers & Investors
Drill results over 30 g/t Au
Stay on top of recent discoveries.
Search drill results by commodity and grade.
Largest mines in the Americas
Mining and mill throughput capaciites.
Full profiles of select mines and projects.
Deepest underground mines
Shaft depth and mill throughput data.
Full profiles of select mines and projects.
Heavy mobile equipment
HME type, model, size and quantity.
Full profiles of select mines and projects.
Permitting and construction projects
Projects at the permitting or construction stage. Full profiles of select projects.
Mines with remote camps
Camp size, mine location and contacts.
Full profiles of select mines and projects.
Mines & projects in Australia
A list of country's mines and projects.
Full profiles of select mines and projects.
  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Fleet
  • Personnel
  • Filings & News

Thank you for browsing through mine profiles compiled by the Mining Data Online team.

Would you like to subcribe or schedule a Demo?
  • Name:
     
  • Company:
     
  • Position:
     
  • Phone:
  • Email:
  • Message:

Overview

StageProduction
Mine TypeUnderground
Commodities
  • Gold
Mining Method
  • Longhole stoping
Processing
  • ACACIA reactor
  • Gravity separation
  • Smelting
  • Calcining
  • Centrifugal concentrator
  • Crush & Screen plant
  • Concentrate leach
  • Agitated tank (VAT) leaching
  • Carbon in pulp (CIP)
  • AARL elution
  • Carbon adsorption-desorption-recovery (ADR)
  • Solvent Extraction & Electrowinning
  • Cyanide (reagent)
EKJV is comprised of four producing underground mines: Raleigh, Rubicon, Hornet and Pegasus. Raleigh is currently on care and maintenance.

The acquisition of the Kundana assets was completed on the 18 August 2021.

A significant milestone was achieved in October with a life of mine milling agreement signed with Rand Mining and Tribune Resources to treat 100% of the EKJV (Evolution interest 51%) material through the Mungari mill. The ore will be processed in campaigns with the first batch to be processed in October 2021.
Latest NewsEvolution set for first ore after Kundana deal     October 20, 2021


Owners

Source: p. 1
CompanyInterestOwnership
Rand Mining Ltd. 12.25 % Indirect
Tribune Resources Ltd. 36.75 % Indirect
Evolution Mining Ltd. (operator) 51 % Indirect
18 August 2021 - Northern Star Resources Limited is pleased to announce that it has completed the sale of its Kundana Assets to Evolution Mining Ltd.

Deposit Type

  • Vein / narrow vein


Summary:

The Kundana Operation hosts several deposits spatially associated with the Zuleika Shear Zone (‘ZSZ’), a NW/SE trending structure stretching more than 250km, separating the Ora Banda and Coolgardie Domains.

Typically, deposits within the ‘ZSZ’ are comprised of narrow, high grade quartz veins, hosted within smaller shear structures formed at the contacts of the Archaean Greenstone stratigraphy’s belonging to the two domains.

Strike extents for each of the deposits are controlled by late-stage NNE trending sub-vertical structures, exhibiting varying amounts of dextral offset.

In total, the Kundana area is known to host more than 5Moz of gold, including the deposits Raleigh, Rubicon, Hornet and Pegasus.

The Raleigh deposit is hosted within the Strzelecki Shear, located at the stratigraphic contact between Andesite/Intermediate Volcanoclastic and Gabbro, with varying amounts of interflow sediment.

The main lode comprises a laminated quartz vein up to 2m true width and dipping 70º west, grading on average 55gpt Au. Gold is typically associated with sphalerite and galena.

The deposit is well defined with drilling showing economic mineralisation extending up to 750m below surface.

The Rubicon, Hornet and Pegasus deposits are all hosted within the K2 Shear, located at the stratigraphic contact between Intermediate Volcanoclastic and the Victorious Basalt, with varying amounts of Centenary Shale.

The main lode comprises several mineralising events which can be distinguished by the presence of laminated or brecciated quartz, and differing amounts of galena, sphalerite, arsenopyrite and pyrrhotite.

Vein grades typically average 25gpt Au for the main lode with the structure varying in thickness from 0.5-4m and dipping 80º west. Several hangingwall lodes with varying orientation have also been identified and exhibit localised ore grades.

All three deposits remain open at depth, with drilling and underground development identifying distinct highgrade zones plunging to both the north and south.


Mining Methods

  • Longhole stoping


Summary:

The Raleigh ore body is accessed form the Raleigh pit with underground stoping occurring at +650m below surface. Three other orebodies, Rubicon, Hornet and Pegasus, are accessed from the Rubicon pit and portal with stoping occurring between 200m and 400m below surface.


Crushing and Grinding
Crusher / Mill TypeModelSizePowerQuantity
SAG mill


Processing

  • ACACIA reactor
  • Gravity separation
  • Smelting
  • Calcining
  • Centrifugal concentrator
  • Crush & Screen plant
  • Concentrate leach
  • Agitated tank (VAT) leaching
  • Carbon in pulp (CIP)
  • AARL elution
  • Carbon adsorption-desorption-recovery (ADR)
  • Solvent Extraction & Electrowinning
  • Cyanide (reagent)

Source: Subscription required

Summary:

All of the Kundana mines yield a “free-milling” ore, where the gold is readily available and recoverable in a conventional CIP circuit

Some of the free milling ore from the EKJV is treated at the Kanowna Belle processing facility.

The Kanowna Belle processing plant is a complex and versatile plant that includes separate circuits for processing free-milling and refractory gold ores. The processing plant treats ores from both the Kundana and Kanowna Belle Operations through separate processing circuits and produces gold bullion as the final product for both ore types.

The crushing and grinding circuits are common for the free milling and refractory circuits.

Pre-leach classification is achieved using a hydro-cyclone classifier circuit consisting of a cluster of 18 x 250mm cyclones that are fed from a central distributor. Only eight to nine of the cyclones are operated at any one time depending on volume of slurry in the milling circuit. Three ........

Recoveries & Grades:

CommodityParameter2017201620152014
Gold Head Grade, g/t 7.98.28.712.4

Production:

CommodityUnits20172016201520142013
Gold oz 216,621209,106191,504204,000147,000
All production numbers are expressed as metal in doré.

Operational Metrics:

Metrics20172016201520142013
Ore tonnes mined 0.9 Mt0.8 Mt0.7 Mt0.5 Mt0.4 Mt

Reserves at March 31, 2021:
The Mineral Resource Estimate has been reported at a 2.13gpt (Underground).

The Mineral Resource Estimate has been reported at a 1.08gpt (Open Pit).

CategoryTonnage CommodityGradeContained Metal
Proven 1,286 kt Gold 4.8 g/t 198 koz
Probable 2,104 kt Gold 5.4 g/t 363 koz
Proven & Probable 3,390 kt Gold 5.1 g/t 561 koz
Measured 2,198 kt Gold 6.2 g/t 437 koz
Indicated 5,639 kt Gold 5.2 g/t 951 koz
Inferred 3,035 kt Gold 4.5 g/t 578 koz
Total Resource 11,874 kt Gold 5.2 g/t 1,967 koz


Heavy Mobile Equipment as of July 30, 2019:
HME TypeModelQuantity
Drill (long hole) ....................... Subscription required ....................... Subscription required
Drill (long hole) ....................... Subscription required ....................... Subscription required
Drill (long hole) ....................... Subscription required ....................... Subscription required
Drill (long hole) ....................... Subscription required ....................... Subscription required
Drill jumbo (two boom) ....................... Subscription required ....................... Subscription required
Drill jumbo (two boom) ....................... Subscription required ....................... Subscription required
Explosives Charger ....................... Subscription required ....................... Subscription required
Explosives Charger ....................... Subscription required ....................... Subscription required
Grader ....................... Subscription required ....................... Subscription required
Grader ....................... Subscription required ....................... Subscription required
Loader ....................... Subscription required ....................... Subscription required
Load-Haul-Dump (LHD) ....................... Subscription required ....................... Subscription required
Load-Haul-Dump (LHD) ....................... Subscription required ....................... Subscription required
Load-Haul-Dump (LHD) ....................... Subscription required ....................... Subscription required
Truck (haul) ....................... Subscription required ....................... Subscription required
Truck (haul) ....................... Subscription required ....................... Subscription required
Truck (service) ....................... Subscription required ....................... Subscription required
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Oct 5, 2021
....................... Subscription required ....................... Subscription required Subscription required Oct 5, 2021
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
Annual Report 2018
Annual Report 2018
Fact Sheet 2018
Annual Report 2017
Fact Sheet 2016
Subscription required - Subscription is required.

News:

NewsDate
Evolution set for first ore after Kundana deal October 20, 2021

Aerial view:

Subscription required - Subscription is required.

Terms of Use Privacy Policy © 2017-2022 MDO Data Online Inc.