Figure 4. Fe2O3t + TiO2 +CaO vs. Al2O3 diagram of De la Roche showing the whole rock chemical composition of the studied rocks

From

Origin and Evolution of the Formation of the Nyong Series in the Western Border of the Craton

Ndema Mbongue J. L., Ngnotue T., Ngo Nlend C. D., Nzenti J. P., Cheo Suh E.

Journal of Geosciences and Geomatics. 2014, 2(2), 62-75 doi:10.12691/jgg-2-2-4