• 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 Mine (Thunderbox 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


Owners

Source: p. 84
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. This assemblage has been overprinted by a retrograde chlorite- epidote-white mica-biotite-quartz and pyrite assemblage. 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 unifo ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

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 currently 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. At Thunderbox, open pit mining continued with D Zone pre-strip and the installation of key infrastructure at Otto Bore to support open pit mining operation.


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:

CommodityUnits20222021202020192018
Gold oz  ......  Subscription required  ......  Subscription required  ......  Subscription required*  ......  Subscription required120,000
All production numbers are expressed as metal in ore. * Combined production for Kailis Mine and Thunderbox OP Mine
Subscription required - Subscription is required.

Operational Metrics:

Metrics20222021202020192018
Total tonnes mined  ......  Subscription required  ......  Subscription required
Ore tonnes mined  ......  Subscription required  ......  Subscription required3,077,203 t2,539,000 t
Waste  ......  Subscription required  ......  Subscription required  ......  Subscription required3,240,159 t
Subscription required - Subscription is required.

Reserves at March 31, 2022:
The Ore Reserve estimated at cut-off grade of 0.50g/t, estimated using assumed gold price of AUD$1,750/oz.

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

CategoryTonnage CommodityGradeContained Metal
Probable 24,344 kt Gold 1.5 g/t 1,185 koz
Measured 2,910 kt Gold 1.5 g/t 136 koz
Indicated 43,803 kt Gold 1.6 g/t 2,190 koz
Inferred 4,537 kt Gold 1.4 g/t 206 koz
Total Resource 51,250 kt Gold 1.5 g/t 2,532 koz



Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Oct 7, 2022
....................... Subscription required ....................... Subscription required Subscription required Oct 7, 2022
....................... Subscription required ....................... Subscription required Subscription required Oct 7, 2022
....................... Subscription required ....................... Subscription required Subscription required Oct 7, 2022
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
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.