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Preliminary Note on the Control of Gold Mineralization in South-West of Burkina Faso (West Africa): The Case of Zone B of the Gnimi-Yabogane Deposit,
Discipline: Sciences de la Terre
Auteur(s): Saga Sawadogo 1,2* , Abraham Seydoux Traoré 1 , Oussény Sourgou 3 , Rayangniwendé Abdoul Rasaky Kaboré 2
Auteur(s) tagués: TRAORE Seydoux Abraham
Renseignée par : SAWADOGO Saga
Résumé

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.

Mots-clés

Mineralization, Deformation, Structures, Gnimi, Yaboghane

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