10.6084/m9.figshare.11302892.v1 Bernard Bonin Bernard Bonin Vojtĕch Janoušek Vojtĕch Janoušek Jean-François Moyen Jean-François Moyen ESM 5: Chemical variation, modal composition and classification of granitoids Geological Society of London 2019 classification granitoids pdf Chemical proportion Na SiO variation diagram Same i.e ESM parameter Figure 11 Al Geology 2019-12-02 14:03:37 Journal contribution https://geolsoc.figshare.com/articles/journal_contribution/ESM_5_Chemical_variation_modal_composition_and_classification_of_granitoids/11302892 pdf file. Same as Figure 11 of main text, using SiO<sub>2</sub>–α diagram. α is defined as α = (Al – Na – K)/Ca, in atomic proportions, i.e. the parameter such that Al = αCa + Na + K. Thus, A/CNK = 1 corresponds to α = 2, and A/NK = 1 to α = 0 (see main text)