• 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
Thunderbox OP Operation (Thunderbox & Bronzewing Operation)

This page is not tailored to
devices with screen width under 750 px.
 Location:
84 km NW from Leonora, Western Australia, Australia

  Address:
Level 1, 388 Hay Street PO Bo
Subiaco
Western Australia, Australia
6008
Phone  ...  Subscription required
Fax+61-8-6188-2111
EmailEmail
WebsiteWeb
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
  • 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 TypeOpen Pit
Commodities
  • Gold
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life2027
The Thunderbox OP operation is a part of the Thunderbox & Bronzewing operation and include Thunderbox mine, the Kailis (on care and maintenance, located at 28°50'23.0" S 121°17'24.0" E) and the Bannockburn (on care and maintenance, located at 28°27'24.0" S 120°53'44.0" E) open pits. In 2023, Bronzewing operation was included in the Thunderbox operating segment. Bronzewing operation include the Bronzewing and Orelia open pits.


Owners

Source: p. 453
CompanyInterestOwnership
Northern Star Resources Ltd. 100 % Indirect
The tenements (Thunderbox Operations) are all held by Northern Star (Thunderbox) Pty Ltd, Northern Star (SR Mining) Pty Ltd and Northern Star (Talisman) Pty Ltd which are all wholly owned subsidiaries of Northern Star Resources Ltd.

Contractors

Subscription required - Subscription is required.


Deposit Type

  • Vein / narrow vein
  • Mesothermal


Summary:

Thunderbox is a mesothermal lode gold deposit located at the southern end of the Yandal greenstone belt in an area where several major shear zones converge and join with the Perseverance Fault.

The shear zone dips at 30° to 60° WSW, with the exception in the vicinity of the mineralisation, where the shear is vertical to steeply dipping. Mineralisation is hosted by strongly deformed, silicified and carbonate altered albite-quartz porphyry in the hangingwall of the shear zone. The shear juxtaposes foliated basalts and intrusive porphyries in the hangingwall against sedimentary rocks in the footwall. The zone of shearing is over 200m wide. An ultramafic unit occurs within the shear, in the footwall of the deposit and is attenuated along the shear. At the known extremities of the mineralisation, interpreted as a pepperitic apron, the porphyry host is less continuous and interchanges with mafic volcaniclastics.

The main gold related hydrothermal alteration assemblage comprises quartz-ankerite-arsenopyrite- pyrrhotite-galena and gold. Synmineralisation veins have a continuum of vein textures ranging from laminated to pseudo-breccias.

Throughout the Thunderbox Deposit, elevated grades occur within southerly plunging ore shoots that are more evident in the lateral extents of the orebody. Whilst the shoots persist centrally, the gold distribution is for more uniform and ubiquitous than in other areas.

Dimensions
Thunderbox mineralisatio ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

The Thunderbox Open Pit Project includes the Thunderbox deposit, Rainbow and Otto Bore gold deposits, Kailis Stage 1 & 2 gold deposits, Bannockburn and North Well gold deposits; and the Orelia deposit.

Thunderbox
Mining method employed at Thunderbox mine is conventional open pit with hydraulic excavator and dump truck fleet, and drill and blast activity. Thunderbox Reserve pit is in operation and designed as successive cutbacks to achieve final life of mine Reserve such that it meets the operation efficiency, safety and production rate. Appropriate mine schedule, operating cost and lead time have been considered to maintain efficient mining operations.

A minimum mining width of 25m has been adopted for the primary excavation fleet. Where ‘pinch-points’ occur or “Good Bye” cuts are considered at the base of the pit, it is assumed that a smaller or more versatile excavator will be employed. The practice is very consistent across all open pit operations and reflects the suitability and efficiency of the mining performance.

Rainbow
The Rainbow deposit is amenable to mining by open pit methods. There has not been any previous mining at Rainbow. There are reasonable grounds to assume that in the future this deposit will be mined by conventional open pit methods given the close proximity to surface of the mineralisation.

Otto Bore
During 2023, commencement of mining at Otto Bore.

The mining method to be employed ........


Crushing and Grinding
Flow Sheet: Source

The process consists of a double toggle jaw crusher followed by a SAG and Ball milling circuit.

Metso Outotec has been chosen to supply its Premier SAG Mill for Northern Star Resources’ Thunderbox gold mine expansion. The expansion should double the throughput of the Thunderbox operation.


Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Production:

CommodityUnits202320222021202020192018
Gold oz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required*  ......  Subscription required120,000
All production numbers are expressed as metal in ore. * Combined production for zz_Kailis Mine and Thunderbox OP Operation
Subscription required - Subscription is required.

Operational Metrics:

Metrics202320222021202020192018
Ore tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required3,077,203 t2,539,000 t
Total tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required
Waste  ......  Subscription required  ......  Subscription required  ......  Subscription required6,495,462 t3,240,159 t
Subscription required - Subscription is required.

Reserves at March 31, 2023:
The Ore Reserve estimated at cut-off grade of 0.50g/t, estimated using assumed gold price of AUD$1,850/oz.

The Mineral Resources estimated at a grade of 0.5g/t for Open Pits.

CategoryTonnage CommodityGradeContained Metal
Probable 20,567 kt Gold 1.6 g/t 1,052 koz
Measured 5,770 kt Gold 1.5 g/t 287 koz
Indicated 36,104 kt Gold 1.6 g/t 1,874 koz
Inferred 6,067 kt Gold 1.7 g/t 328 koz
Total Resource 47,941 kt Gold 1.6 g/t 2,489 koz


Water Supply
Source: Subscription required

- subscription is required.


Heavy Mobile Equipment:

Mine Management:

Job TitleNamePhoneEmailProfileRef. Date
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required Subscription required Oct 30, 2023
....................... Subscription required ....................... Subscription required Subscription required Oct 30, 2023
....................... Subscription required ....................... Subscription required Subscription required Oct 30, 2023
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
Annual Report 2023
Press Release 2023
Quarterly Report 2023
Sustainability Report 2023
Year-end Mineral Reserves 2023
Annual Report 2022
Quarterly Report 2022
Year-end Mineral Reserves 2022
................................... Subscription required 2021
................................... 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
................................... Subscription required 2019
................................... Subscription required 2019
Annual Report 2018
Annual Report 2017
Year-end Mineral Reserves 2017
Annual Report 2016
Subscription required - Subscription is required.

Subscription required - Subscription is required.

Terms of Use Privacy Policy © 2017-2023 MDO Data Online Inc.