Overview
Stage | Permitting |
Mine Type | Open Pit |
Commodities |
|
Mine Life | 9.7 years (as of Jan 1, 2023) |
Development work for the Mt Gibson Gold Project (MGGP) has been continuing since the completion of the 1.45 million ounce maiden ore reserve and prefeasibility study in April 2023.
The mining proposal to the Department of Mines, Industry Regulation and Safety (DMIRS) for early construction of the accommodation village and supporting infrastructure was approved together with the associated native vegetation clearing permit.
Works on the accommodation village will commence in Q2 FY2024 with orders to be placed for the majority of accommodation units and supporting buildings. This will allow fast tracking of construction activities and compressing of construction timeframes once approvals are received.
Completion of MGGP permitting approval documentation is pending the imminent completion of baseline studies. Submission of environmental permit applications is anticipated in Q2 FY2024. |
Latest News | Capricorn’s Mount Gibson shines bright April 19, 2024 |
Source:
p. 10
Capricorn is the 100% beneficial owner of mining tenure that fully encompass the Mt Gibson deposit and all areas required for project infrastructure.
The resource is located across mining tenements held by wholly-owned Capricorn subsidiaries METROVEX PTY LTD and CRIMSON METALS PTY LTD.
Contractors
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Deposit Type
- Banded iron formation hosted
- Laterite
- Hydrothermal
- Vein / narrow vein
Summary:
The Mt Gibson Gold Project tenements are located at the southern extremity of the Retaliation Greenstone Belt, in the SW portion of the Yalgoo-Singleton Greenstone Belt in the Murchison Province of the Yilgarn Craton. The tenements are mostly covered by a veneer of alluvial quartz sands and laterite gravels, with sporadic greenstone subcrop and outcrop, increasingly exposed in the north of the project area. The mineralised laterite gravels are situated slightly down-slope from the lode deposits on the Gibson trend. Regionally, the greenstone belt has been metamorphosed to middle amphibolite facies and hosts a number of Au-Cu deposits and prospects, including Golden Grove, 90km to the northwest of Mt.Gibson.
he deposit has been defined by drilling over an 8km strike length and as deep as 950m down-dip where it is still mineralised and open down-dip. The mineralised shoots are present in drilling as broad zones up to 50m wide and are continuous down plunge. It is thought the shoots are developed in dilation zones along the main structures. A large laterite and oxide weathering zone is developed over the primary geology and this is mineralised in the near surface, up-dip position of the main shoots of primary mineralisation. A thin veneer of transported sand and colluvium soil covers the deposit and is typically less than 6m thick, the transition/fresh rock boundary is about 40 to 60m below surface.
The lode style mineralisation at Mt. Gibson is predominant ........
Summary:
A conventional load and haul mining method has been selected for the development of the MGGP. Open pit mining activities are expected to be conducted by an experienced third-party earthmoving contractor.
All mining is proposed to take place 24 hours per day, 7 days per week using conventional excavators and haul trucks as used in open pit gold mining operations world-wide. Ore will be mined in benches of between 2.5 and 5.0 metres for grade and selectivity considerations. The ore boundaries will be determined by grade control drilling.
The seven open pits resulting from the Ore Reserve estimation have been assessed for project sizing and sequencing using MineMax software by Cube to guide balancing the needs of project scale, pit mining rate capabilities, and maximising project cashflow. Over 90% of mill feed to the process plant will be sourced from 3 key open pits, Orion (North and South joined), Enterprise/Hornet and S2.
Source:
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Flow Sheet:
Summary:
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Source:
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Reserves at April 19, 2023:
Ore Reserves are estimated using a cut-off grade between 0.3g/t and 0.4g/t Au.
Mineral Resources are estimated using a cut-off grade between 0.3g/t and 0.4g/t Au.
Mineral Resources are reported inclusive of Mineral Reserves.
Category | Tonnage | Commodity | Grade | Contained Metal |
Probable
|
48.7 Mt
|
Gold
|
0.9 g/t
|
1,450 koz
|
Indicated
|
76 Mt
|
Gold
|
0.9 g/t
|
2,106 koz
|
Inferred
|
28.9 Mt
|
Gold
|
0.7 g/t
|
649 koz
|
Total Resource
|
104.9 Mt
|
Gold
|
0.8 g/t
|
2,755 koz
|
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