Figure 19. Discrimination diagrams of A-type and I, S, and M types after [46]. a) FeO*/MgO versus Ga/Al; b) Zr(ppm) versus Ga/Al. Designations follow Figure 3.

From

Petrology and Geochemistry of the Granitic Rocks from the Itremo Domain, Central Madagascar

Désiré Alphonse Rakotondravaly, Roger Randrianja

Journal of Geosciences and Geomatics. 2022, 10(1), 31-44 doi:10.12691/jgg-10-1-3