Origin of Material: AMIS0288 is a commissioned CRM made from material supplied by SGS Minerals Services from the Sabodala Gold Mine, operated by the Teranga Gold Corporation.
Sabodala gold mine is situated in Senegal, West Africa; approximately 650 km east-southeast of the capital city of Dakar. The deposit is located within the Senegalese portion of the major Proterozoic-Birimian Kedougou-Kenieba Inlier, along the northeastern margin of the Archaean Leo Man shield. Gold mineralisation is hosted along the Sabodala Shear Zone; within carbonaceous and siliceous sediments and basaltic volcanic rocks of the Mako Volcanic Belt.
Mineral and Chemical Composition: The shear zone contains lozenges of undeformed basalt, metasediment, gabbro, and dolerite within mylonite and cataclastic breccias. Mineralization is focused in shallow-dipping to flat-lying dilational breccia zones within the shear zone. Gold mineralization is late phase and is associated with quartz, sericite, ankerite/siderite veining and orange coloured silicaalbite-carbonate-pyrite alteration. Hangingwall rocks comprise basalt and intrusive dolerite and gabbro. The primary sulphide present is pyrite with minor chalcopyrite. Gold is generally fine grained.
Recommended Concentrations and Limits
(at two Standard Deviations)
Au Pb Collection 1.66 ± 0.16 g/t
Specific Gravity 2.84 ± 0.10