Figure 14. Geotectonic discrimination diagrams of the Banefo-Mvoutsaha amphibolites. A) Zr/Y vs Zr of indicating geotectonic context of studied amphibolites. B) Nb–Zr–Y of . WPA (AI, AII): Within-plate Alkalic Basalt; WPT (AII, C): Within-plate Tholeiitic Basalts; P MORB (B) plume mid-ocean ridge basalts; N MORB (D): normal mid-ocean ridge basalts; VAB (C, D): Volcanic Arc Basalts; WPB, Within-Plate Basalts; E-MORB, Enriched Mid-Ocean Ridge Basalts. C) Geotectonic diagram Th-Hf/3-Ta showing the positions of Banefo-Mvoutsaha amphibolites within the WPT/WPA domain

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Geochemistry and ⁴⁰ar/³⁹ar Geochronology of Amphibolites from Banefo-Mvoutsaha Area, Central Domain of the Pan-African Fold Belt in Cameroon

MVODO Hermine, NGA ESSOMBA TSOUNGUI Philomène Estelle, KOUANKAP NONO Gus Djibril, KAMGUIA WOGUIA Brice, SIMO Pascal

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