Analysis of gold mineralization in the Gnimi-Yabogane B zone, in the com-
mune of Dano in southwest Burkina Faso, within the Boromo greenstone belt,
reveals local geology comprising volcano-sedimentary rocks, meta-andesite,
amphibolitic gabbros, and granodiorites. The study highlighted three phases
of deformation (D1, D2, D3), with mineralization mainly controlled by the D2
phase, responsible for the development of NE-SW shear corridors. Defor-
mation markers show that the D1 shear zones are sinistral and the D2 dextral,
with gold mainly associated with sulfide-rich brecciated smoky quartz veins.
These results confirm structural control of the Mineralization at Area B of the
Gnimi-Yabogane deposit in the southwest region.
Mineralization, Deformation, Structures, Gnimi, Yaboghane