Figure 6. Tectonic setting discrimination diagrams of the Vertisols of the Benue Floodplain. Chart (a) is from [34]; (b) from [35]; (c) from [36] and (d) from [58]. DF1: discrimination function 1; DF2: discrimination function 2 (DF1(Arc-Rift-Collision)=(0.608ln(TiO2/SiO2)(-1.854xln(Al2O3/SiO2) +(0.299ln(Fe2O3/SiO2)+(-0.550ln(MnO/SiO2)+(0.120ln(MgO/SiO2)+(0.194ln(CaO/SiO2)+(-1.510ln(Na2O/SiO2)+(1.94ln(K2O/SiO2)+(0.003ln(P2O5/SiO2) + 0.294; DF2(Arc-Rift-Collision) = (-0.554ln(TiO2/SiO2)+(-0.995ln(Al2O3/SiO2)+(1.765ln(Fe2O3/SiO2) + (-1.391ln(MnO/SiO2) + (-1.034ln(MgO/SiO2) + (0.225ln(CaO/SiO2)+(0.713ln(Na2O/SiO2)+(0.330 ln(K2O/SiO2)+(-0.637ln(P2O5/SiO2)-3.631. A: Oceanic Island; B: Continental Island Arc; C: Active Continental Margin; D: Passive Margin)

From

Characteristics, Source Area-weathering, Sedimentary Processes, Tectonic Setting and Taxonomy of Vertisols Developed on Alluvial Sediments in the Benue Trough of North Cameroon

Primus Azinwi Tamfuh, Jean Pierre Temga, Emile Temgoua, Emmanuel Djoufac Woumfo, Philemon Zo'o Zame, Milan Stafford Tchouatcha, Georges Martial Ndzana, Dieudonné Bitom, Veronique Kamgang Kabeyene Beyala

Journal of Geosciences and Geomatics. 2022, 10(1), 1-17 doi:10.12691/jgg-10-1-1