The Djabatoure Basin in Togo (West Africa) - Kpanzou, Sarakawa Abalo Malibida; Agbossoumondé, Yao
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The Djabatoure Massif represents a component of the Pan-African Dahomeyid suture zone in Togo. It is composed of three units that are structured by overlapping contacts. Unit 1 (Djabatoure) is characterized by metagabbroic granulites, amphibolites and pyroxenites; units 2 (Afoulayo) and 3 (Adiaé) are composed of garnet granulites. The objective of this thesis is to characterize these basic massifs from a petrographic and structural study and to trace the different phases of metamorphic recrystallization in relation with the Pan-African deformation. The rocks of these massifs present mainly a…mehr

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Produktbeschreibung
The Djabatoure Massif represents a component of the Pan-African Dahomeyid suture zone in Togo. It is composed of three units that are structured by overlapping contacts. Unit 1 (Djabatoure) is characterized by metagabbroic granulites, amphibolites and pyroxenites; units 2 (Afoulayo) and 3 (Adiaé) are composed of garnet granulites. The objective of this thesis is to characterize these basic massifs from a petrographic and structural study and to trace the different phases of metamorphic recrystallization in relation with the Pan-African deformation. The rocks of these massifs present mainly a Pl-Cpx-Grt-Rt mineralogy, typical of high pressure granulites with locally relics of low pressure Opx-Pl-Ilm granulites. The succession of metamorphic paragenesis shows a probable increase in pressure until the peak of metamorphism in the high-pressure granulite facies followed by retromorphosis in the high-pressure amphibolite facies. Structurally, the massifs and their host rocks are affected by NE-SW oriented fractures.
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Autorenporträt
Investigador doctoral. Máster en Geología, Profesor de Secundaria y Máster en Geociencias (Petrostructuras y mineralizaciones) en la Universidad de Lome (Togo). Mi investigación se basa en la mineralización en contexto magmático.