Figure 8. a) The SiO2 vs FeOt/(FeOt + MgO) diagram, showing magnesian and ferriferous characteristics of the studied granitoids (axis units are wt%). b) Millications diagram Fe+Mg+Ti vs Mg /Mg+Fe defining magnesian and ferriferous series

From

Contrasting Ba-Sr Granitoids from Bamenda Area, NW Cameroon: Sources Characteristics and Implications for the Evolution of the Pan African Fold Belt

Gus Djibril KOUANKAP NONO, Pierre WOTCHOKO, Alice MAGHA, Sylvestre GANNO, Ndam NJOYA, Aloysius AFAHNWIE NGAMBU, Jean Paul NZENTI, Veronique KAMGANG KABEYENE

Journal of Geosciences and Geomatics. 2018, 6(2), 65-76 doi:10.12691/jgg-6-2-4