Overview
| Stage | Production |
| Mine Type | Underground |
| Commodities |
|
| Mining Method |
|
The three independent and self-sufficient Mining Centres at Mount Monger are the Daisy Complex, Mount Belches and Aldiss Mining Centres. These Mining Centres feed the 1.3Mtpa Randalls processing facility. |
Source:
p. 49
The mining operations for Daisy Complex occurs on these granted Mining Leases – M26/129, M26/251, M26/38, M26/389, M26/825 and are held by Silver Lake Resources Limited.
Contractors
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Deposit Type
- Orogenic
- Vein / narrow vein
Summary:
The deposit type is classified as an orogenic gold deposit within the Norseman-Wiluna greenstone sequence. The accepted interpretation for gold mineralisation is related to (regional D2-D3) deformation of the stratigraphic sequence during an Archaean orogeny event.
Locally, the mineralisation is characterised as a deformed vein, hosted within intermediate volcanic and volcaniclastic units and closely associated with felsic intrusive rock types of the Gindalbie Terrane. The metamorphic grade is defined as lower green-schist facies.
The Daisy Complex resource extents are 2,500m strike, 800m across strike and 1,308m down dip and open at depth. These extents host approximately 74 known ore zones (ore domains).
Summary:
Mining at Daisy Complex utilizes a single boom jumbo for ore development and longhole stoping between sill drives. All stope panels are assumed to have a minimum width of 2.4m and variable dilution is added at 0.0 g/t when mining each stoping block.
The mining methods employed in the study are mechanised development, longhole stoping and airleg mining which are all currently utilised at the mine.
Airleg development and stoping is undertaken in narrower ore zones while in all other areas ore production is derived from single and twin boom jumbo development and selective longhole stoping.
Major assumption made for optimisation parameters include minimum stoping widths of 2.4m and maximum stope height of 15m. Minimum mining width parameters for hand held and mechanised mining were set at 2.4 metres, based on current experience at the Daisy Complex. An additional 20% dilution factor is then applied. Mining recovery factor of 80% was applied to account for ore loss in pillars and unplanned ore loss. Infrastructure to support mining operations is already in place at the Daisy Complex.
The Daisy Complex production sourced from Haoma West, Lower Prospect, Easter Hollows and remnant mining areas. The Easter Hollows zone provides a shallower mining front and a significant exploration opportunity, with 1,000 metres of known plunge extent and improved drill access to target infill and extensional opportunities. In FY23, ore from the Daisy Mini ........
Source:
Summary:
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Reserves at June 30, 2022:
The adopted cut-off grades 1.0 g/t (less than 100m depth from surface) and 2.0 g/t (more than 100m depth from surface) for reported mineral resource.
| Category | Tonnage | Commodity | Grade | Contained Metal |
|
Proven
|
63 kt
|
Gold
|
5.9 g/t
|
12 koz
|
|
Probable
|
293 kt
|
Gold
|
7.5 g/t
|
70 koz
|
|
Proven & Probable
|
355 kt
|
Gold
|
7.2 g/t
|
82 koz
|
|
Measured
|
583 kt
|
Gold
|
7.1 g/t
|
133 koz
|
|
Indicated
|
3,157 kt
|
Gold
|
5.3 g/t
|
533 koz
|
|
Inferred
|
2,576 kt
|
Gold
|
9.3 g/t
|
770 koz
|
|
Total Resource
|
6,316 kt
|
Gold
|
7.1 g/t
|
1,436 koz
|
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