Figure 10. Rb vs. SiO2 Discriminant plot (boundaries modified after 26)

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