Overview
| Stage | Production |
| Mine Type | Open Pit |
| Commodities |
|
| Mining Method |
|
| Production Start | ...  |
| Mine Life | 4 years (as of Jan 1, 2022) |
Sissingué Gold Mine comprises one main open pit and several smaller satellite open pits and is processed through a conventional 1.4 million tonnes per annum CIL processing facility. |
Source:
p. 13
| Company | Interest | Ownership |
|
Société Minière de Côte d'Ivoire SARL
|
4 %
|
Indirect
|
|
Government of Côte d’Ivoire
|
10 %
|
Indirect
|
|
Perseus Mining Ltd.
|
86 %
|
Indirect
|
|
Perseus Mining Côte d’Ivoire S.A.
(operator)
|
100 %
|
Direct
|
Perseus owns an 86% interest in Sissingué, with a 10% free carried interest held by the Ivorian government and 4% owned by local interests.
Perseus owns a 86% interest in Perseus Mining Côte d’Ivoire SA, owner of Sissingué Gold Mine.
Contractors
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Deposit Type
- Orogenic
- Vein / narrow vein
Summary:
Gold deposits at Sissingué are orogenic, greenstone hosted.
The Sissingué Gold Mine main pit mineralisation is structurally controlled and mainly hosted within a granitic stock associated with a network of quartz-carbonate veins and veinlets with associated pyrite and arsenopyrite dissemination. Gold-bearing veins have a dominant NNW to NS trend and are steeply dipping. Disseminated mineralisation is also located in the alternation envelops of the mineralised quartz veins.
Additional mineralisation is seen within interconnecting mineralised felsic dyke complexes that propagate from the main granite stock. These mineralised felsic dyke complexes, also trending NNW, host the mineralisation for the additional pits in the area, namely Binkadi, Bagoé, Western Arm and Boribana.
The Sissingué Deposit occurs in a strongly deformed Birimian greenstone belt intruded by quartz-feldspar felsic dykes and granitoid bodies. Gold mineralisation at Sissingué is associated with the felsic dykes and small granitoid (tonalite) bodies that cross-cut sedimentary rocks. Subsequent hydrothermal activities and metasomatism of the granitoids has led to a sericite-carbonate alteration within the intrusive and the more permeable horizons (sandstones and conglomerates) of the sedimentary rocks, and a low to moderate grade disseminated gold mineralisation. Late-stage high grade Au-As-quartz-carbonate veins exploited the altered and brittle portions of the intrusive and sediments with common occurrenc ........
Summary:
The chosen method for the Open Pit Ore Reserves is conventional open pit mining utilising hydraulic excavators and trucks, mining bench heights of 5 metres with 2.5 metre flitches to minimise ore loss and waste rock dilution.
Overall pit slopes are 30 to 50 degrees inclusive of berms spaced at between 5, 10 and 20 metres vertically and berm widths of 4 to 7 metres.
Pit ramps have been designed for a 40 tonne ADT truck fleet and are set at 16 metres (dual lane) to 10 metres (single lane).
Minimum mining width of 40 m was generally applied to the pit cutback designs.
Ore from Fimbiasso pits will be trucked to Sissingué with a maximum limit of 40 kt/month and from Bagoé pits will be trucked at a maximum limit of 50 kt/month.
The sources of ore to be processed at Sissingué are SGM, Fimbiasso and Bagoé deposits. Each deposit consists of multiple pits and the ore feed will be supplemented with stockpiles at SGM. Ore from Fimbiasso and Bagoé will be stockpiled temporarily on site then transported to Sissingué for process plant feed as per milling schedule. Waste material will be taken to the waste dump located near the pits.
Gold production in FY23 will mainly be derived from ore sourced from Fimbiasso deposit, oxide ore from SGM satellite deposits and existing stockpiles at SGM. Meanwhile, the pre-strip in the SGM main pit will be undertaken to access the ore zone. Pre-stripping at SGM main pit is expected to take 1 ........
Source:
- subscription is required.
Flow Sheet:
Summary:
- subscription is required.
Reserves at June 30, 2022:
Sissingué Mineral Resources and Ore Reserves include the Fimbiasso and Bagoé Projects in addition to the Sissingué Gold Mine.
Mineral Resources: 0.6g/t gold cut-off applied to in situ material (Sissingué pit), 0.8g/t gold cut-off applied (Fimbiasso), 0.8g/t gold cut-off applied to oxide, 1g/t applied to transition, 1.2g/t applied to fresh (Veronique deposit only).
Ore Reserve estimate: variable gold grade cut-off for each material type, ranging from 0.40 g/t to 1.05 g/t at Sissingué deposits, from 0.80 g/t to 1.50 g/t at Fimbiasso deposits and from 1.00 g/t to 3.00 g/t at Bagoé deposits.
| Category | Tonnage | Commodity | Grade | Contained Metal |
|
Proven
|
3.6 Mt
|
Gold
|
1.68 g/t
|
193 koz
|
|
Probable
|
1.2 Mt
|
Gold
|
2.02 g/t
|
77 koz
|
|
Proven & Probable
|
4.8 Mt
|
Gold
|
1.77 g/t
|
271 koz
|
|
Measured
|
3.9 Mt
|
Gold
|
1.64 g/t
|
204 koz
|
|
Indicated
|
2.6 Mt
|
Gold
|
1.79 g/t
|
151 koz
|
|
Measured & Indicated
|
6.5 Mt
|
Gold
|
1.7 g/t
|
355 koz
|
|
Inferred
|
0.3 Mt
|
Gold
|
1.8 g/t
|
15 koz
|
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