Figure 12. (a) SiO₂/Al₂O₃ vs. K₂O/Na₂O and (b) K₂O/Na₂O vs. SiO₂ [59] for tectonic discrimination diagrams of the Mbondo-Ngazi Tina metsasedimentary rocks: A1 (arc setting, basaltic and andesitic detritus), and A2 (evolved arc setting, felsic–plutonic detritus), ARC (oceanic island-arc margin), ACM (active continental margin), PM (passive margin)

From

Geochemistry of the Neoproterozoic Mbondo-Ngazi Tina Metasediments, Adamawa Area, Central Cameroon: Source Provenance and Tectonic Setting

Alexis Hamdja Ngoniri, Timoleon Ngnotue, Evine Laure Tanko Njiosseu, Patrick Ayonta Kenne, Sylvestre Ganno, Jean Paul Nzenti

• Previous
• Figure 12 of 13  (Figures index)
• Next