Overview

Mine Type	Open Pit
Stage	Preliminary Economic Assessment
Commodities	Gold
Mining Method	Truck & Shovel / Loader
Production Start	...
Mine Life	...
Snapshot	The Scoping Study has been undertaken for the purpose of evaluating the potential development of a heap leach (HL) operation at the APG deposit which is part of the Abujar Gold Project in Côte d’Ivoire. Since commencement, ore processed at Abujar has primarily been mined from the AG open pit. Mining has focused on AG Main stages 1, 2 and 3 with some contributions from AG South stage 1 pit. AG Main open pit stage 4 and stage 5 cutbacks are due to be completed in 2024 and 2025 respectively, whereafter mining will move on to AG South cutback pits. Mining in APG starts in 2026. The APG open pit is approximately 9km from the processing plant, the current LOMP assumes ore to be transported from APG to the existing Abujar processing plant.
Related Asset	Abujar

Deposit type

• Mesothermal
• Vein / narrow vein

Summary:

The deposits making up the Abujar Gold Project are located within a NNE-SSW orientated body of granitoid migmatite and is hosted within in an interpreted regional shear structure. This is then enclosed within two mica granite bodies of similar interpreted orientation which are regionally referred to as granodiorites. Greenstones are rare in the immediate vicinity but have been mapped as isolated bodies to the south and east. Two styles of deformation are interpreted to be present within the drill cores at Abujar; these include ductile deformation and brittle deformation. The gold mineralisation is interpreted to be related to the deformed granodiorite, in shear zones, with sulphides (mainly pyrite and minor chalcopyrite) associated with visible gold. The mineralisation seems to be located within the granodiorite at the boundary between two different intensities of deformation i.e. weakly deformed and highly strained. Alteration is characterised by chlorite, sericite, calcite, secondary quartz and disseminated pyrite. This assemblage is well developed in schistose, foliated rocks with the presence of quartz veins or veinlets. Deposits within the Abujar Project resemble typical shear zone deposits of the West African granite-greenstone terrane. The Abujar deposit (AG) is associated with a major regional shear zone and is developed in granodiorite hosts similar to that which hosts the Pischon & Golikro deposits (APG) and the interpreted extension areas in the Gamina deposits to the north (Gamina South and Centre). Mineralisation is potentially spatially related to the emplacement of intrusives and interpreted to be mesothermal in origin. Free gold in quartz vein stockworks and zones of silicification, associated with pyrite and chalcopyrite. The gold mineralisation is typically found in linear domains with the contacts showing evidence of shearing with free gold frequently observed. Alteration is weak to severe depending on the development of the system. As noted, gold mineralisation is hosted within a continuous shear zone which is traced over 4.5km within Abujar and over 1.5km within Pischon and 2.5km within Golikro, however analysis of the drill holes within these deposits indicates that within this low-grade shear hosted halo, higher grade lodes occur which are slightly oblique to the strike of the shear. This is interpreted to be typical riedel ductile shear mineralisation, which is structurally controlled both at a local and regional scale. Several occurrences of boudin structures are observed within the drill core, and it is hypothesized these structures control mineralisation both regionally and locally. Of particular note is the intersection of near vertical extremely high-grade plunging shoots (>5g/t) which can be interpreted within both the Abujar and Pischon Goliko Deposit. These can be seen in the long sections of the grade estimates. All APG lodes have similar southwest-dipping orientations striking 30° and dipping at varying angles of inclination typically between 50 and 75°. These lodes appear to coincide with strong linear geological structures which are offset by several faults and have strike length from 200 metre to up to 1.2km. The lodes range in thickness from 2m to up to 40m, with the thicker zones general occurring where the higher grades occur, which is as expected for the structurally controlled style of mineralisation.

Mining Methods

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Comminution

Crushers and Mills

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Processing

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Production

Operational metrics

Metrics
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Personnel

Job Title	Name	Profile	Ref. Date
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