Genesis of the Early Indosinian Darongshan Granitoid in South China: Response to the Subduction of the Eastern Paleo-Tethys Ocean

Figure 6

Geochemical classification diagrams of granitoid samples from the Darongshan pluton: (a) total alkalis versus silica diagram (after [114]); (b)An–Ab–Or diagram (after [115]); (c) K₂O vs. SiO₂ diagram (after [116]); (d) A/NK vs. A/CNK diagram (after [117]). A/CNK–molar (Al₂O₃/(CaO+Na₂O+K₂O)); A/NK-molar (Al₂O₃/(Na₂O+K₂O)); (e) SiO₂ vs. FeO^T/(FeO^T+MgO) diagram; (f) SiO₂ vs. Na₂O+K₂O–CaO (MALI) diagram. Boundaries between magnesian and ferroan and alkali, alkali-calcic, calc-alkalic, and calcic are from Frost et al. [118]. Data sources are referenced in Table S1 of the Supplementary Materials.

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