Fig. 4
From: Continuity in geochemistry and time of the Tertiary Bergell intrusion (Central Alps)
a AFM diagram (Irvine and Baragar 1971). b Normative albite-anorthite-orthoclase classification scheme of silicic plutonic rocks (O’Connor 1965). Note that in the field, a classification as pheno-tonalite or pheno-granodiorite is based on appearance (mainly hornblende and K-feldspar megacrystals) and does not necessarily correspond to the classification based on geochemical criteria. Analyses are renormalized to 100 % on anhydrous basis