Overview
Stage | Permitting |
Mine Type | Open Pit & Underground |
Commodities |
|
Mining Method |
- Truck & Shovel / Loader
- Longhole stoping
- Cemented rockfill
- Unconsolidated rockfill
|
Mine Life | 9.3 years (as of Jan 1, 2023) |
The Murchison Gold Project (MGP) involves a brownfield restart of mining at Andy Well and a greenfield start up at Turnberry and St Anne’s. Andy Well was previously permitted for mining and processing operations, and various licenses and permits remain in place. Turnberry and St Anne’s require new approvals prior to development. Based on the work completed to date and the information available, the Company is confident that approvals required for development will be granted.
Access to the Project is via the existing Andy Well mine gate from the Great Northern Highway.
1.0Mtpa CIL processing facility, TSF, offices, workshop, powerhouse and camp to be constructed at Turnberry.
Existing infrastructure at Andy Well including workshop, stores, powerhouse and 6km of UG development will be recommissioned for mining activities.
A haul road from Andy Well to Turnberry will be constructed on a granted Miscellaneous Licence (L 51/97) for ore haulage. |
Source:
p. 30
Company | Interest | Ownership |
Andy Well Mining Pty Ltd.
(operator)
|
100 %
|
Direct
|
Meeka Metals Ltd.
|
100 %
|
Indirect
|
Andy Well Mining Pty Ltd, a subsidiary of Meeka Metals Limited, owns 100% of all Exploration Licenses, Mining Leases and mineral rights for the Project.
Contractors
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Deposit Type
- Porphyry
- Vein / narrow vein
- Hydrothermal
Summary:
Project scale geology consists of Archean aged high Mg Basalt units intruded by north-south striking porphyry intrusives. These are cross cut by east-west striking Proterozoic dolerite dykes. The mineralized quartz vein cross cuts the Archean units but not the Proterozoic dykes.
The Yilgarn is divided into four broad tectonic terranes; the Narryer, Youanmi, Southwest and Eastern Goldfields Superterrane. The Project is located within the northern end of the Youanmi Terrane.
Andy Well
Andy Well is located at the northernmost end of the north-north easterly trending Archaean Meekatharra- Wydgee greenstone belt, within the Youanmi Terrane. The belt comprises a succession of metamorphosed mafic to ultramafics, felsic and sedimentary rocks interpreted to belong to the Norie Group formerly Luke Creek and Mount Farmer Groups.
The Andy Well local stratigraphy is comprised of a north-northeast striking, sub-vertical (~80º) dipping, Achaean volcano-sedimentary package. The stratigraphy youngs toward the West based on sedimentary textures and immobile element geochemistry of basalts. The local package follows a general transition from a basaltic subaqueaous lava sequence at its base which becomes mafic volcaniclastic dominated before transitioning to a siliciclastic sequence of agrillites and arenites to the west of the Great Northern Highway.
The gold mineralisation at Andy Well is orogenic shear hosted, narrow high-grade quartz reefs. Ec ........
Mining Methods
- Truck & Shovel / Loader
- Longhole stoping
- Cemented rockfill
- Unconsolidated rockfill
Summary:
Mining is planned at Andy Well, Turnberry and St Anne’s, supplying ore to a 1.0Mtpa processing facility located at Turnberry. Both open pit and underground mining is planned at Andy Well and Turnberry, while St Anne’s is currently only planned to be mined by open pit methods. Andy Well is located within Mining Lease M51/870. Turnberry and St Anne’s are located within Mining Lease M51/882.
Mining is planned to occur simultaneously at each mining centre to provide production flexibility with stockpiling and grade streaming adopted to maximise production and cash flow. Higher grade ore feed is prioritised for milling and lower grade ore is stockpiled for processing at a later date.
At Andy Well, two open pits are planned to be mined in addition to underground mining activities. Extensive underground development infrastructure is already in place and there is no interaction between underground and open pit mining activities. Both open pit and underground mining is planned to occur concurrently. Ore produced from the Andy Well mining centre will be stockpiled on surface and then trucked 19.5km via a planned haul road to the processing facility at Turnberry by road train.
Five open pit stages are planned to be mined at Turnberry with pit staging providing early and consistent access to ore. The Turnberry open pits will also provide a platform for underground development with mining scheduled to limit interaction between open pit and underground acti ........
Source:
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Flow Sheet:
Summary:
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Source:
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Projected Production:
Commodity | Units | Avg. Annual | LOM |
Gold
|
oz
| 80,000 | 663,000 |
All production numbers are expressed as metal in doré.
Operational Metrics:
Metrics | |
Hourly processing capacity
| ...... |
Annual processing capacity
| ...... |
Ore tonnes mined, LOM
| ...... |
Tonnes processed, LOM
| ...... |
* According to 2023 study.
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Reserves at July 12, 2023:
The Open pit Mineral Reserve is reported using 0.5g/t gold cut-off grade. The Underground Mineral Reserve is reported using 2.0g/t gold cut-off grade.
Andy Well Mineral Resource is reported using 0.1g/t gold cut-off grade. The Turnberry open pit Mineral Resource is only the portion of the Mineral Resource that is constrained within a $2,600/oz optimised pit shell and above a 0.5g/t gold cut-off grade. The Turnberry underground Mineral Resource is only the portion of the Mineral Resource that is located outside the $2,600/oz optimised pit shell and above a 1.5g/t gold cut-off grade. The St Anne’s Mineral Resource is constrained within a $2,600/oz optimised pit shell and above a 0.5g/t gold cut-off grade.
Mineral Resources are reported inclusive of Mineral Reserves.
Category | Tonnage | Commodity | Grade | Contained Metal |
Probable
|
4,100 kt
|
Gold
|
3.1 g/t
|
410 koz
|
Measured
|
150 kt
|
Gold
|
11.4 g/t
|
55 koz
|
Indicated
|
5,900 kt
|
Gold
|
3 g/t
|
570 koz
|
Inferred
|
6,700 kt
|
Gold
|
2.8 g/t
|
590 koz
|
Total Resource
|
12,700 kt
|
Gold
|
3 g/t
|
1,215 koz
|
Corporate Filings & Presentations:
Document | Year |
...................................
|
2023
|
...................................
|
2023
|
...................................
|
2023
|
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