Fig. 9
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Geochemical classification diagrams of igneous rocks (Frost et al., 2001): A: modified alkali-lime index (MALI); B: Al saturation index (ASI); C: Fe-number vs. SiO2 %wt. D: multi-element patterns normalised to MORB values (Sun and McDonough, 1989). Legend: square: appinite; open square: leuco-appinite; circle: melanocratic spessartite; open circle: spessartite; open diamond: comb layered appinite.
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