Figure 9. Discriminant plot of FeO+MgO (wt%) vs CaO for the Irruan granitoids (modified after 25)

From

Petrogenesis and Tectonic Setting of the Basement Rocks around Irruan Area, Bamenda Massif, SE Nigeria

Ominigbo O. E., Ukwang E. E., Okumoko J. P., Ukpai U. J.

Journal of Geosciences and Geomatics. 2020, 8(1), 35-44 doi:10.12691/jgg-8-1-5