File:Subduction Fig-7.png|Fig. 7. Plot of A = K2O + Na2O, F = FeO + 0,9Fe2O3, and M = MgO to Differentiate between Tholeiitic and Calc-alkaline Magma Series (Derived from Wilson, 2007) | File:Subduction Fig-7.png|Fig. 7. Plot of A = K2O + Na2O, F = FeO + 0,9Fe2O3, and M = MgO to Differentiate between Tholeiitic and Calc-alkaline Magma Series (Derived from Wilson, 2007) |