Geological Magazine -- SKARPELIS et al. 145 (1): 1 Figure 5

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Figure 5. (a) Plot of aluminium saturation index (ASI) ratio v. SiO₂ for the analysed rocks, on a volatile-free basis. (b) Plot of Shand’s index (ANK: molar Al₂O₃/(Na₂O+K₂O) v. A/CNK: molar Al₂O₃/(CaO+Na₂O+K₂O)) for the analysed dyke rocks and the granodiorite stock (on a volatile-free basis).