Fig. 12

P–T phase diagram section calculated with Perple_X. Coloured numbers and isopleths indicate Al pfu in chlorite, Ca-amphibole and Cr#s of spinel respectively. Calculated mineral parageneses are presented as mineral abbreviations (see text) in large divariant fields and as numbers in narrower fields. 1: Ol, Ca-amph, Chl, Cr-mt and Atg, 2: Ol, Ca-amph, Chl, Cr-mt, Atg and Tc 3: Ol, Tc, Anth, Ca-amph, Chl and Cr-mt 4: Ol, Spin, Anth, Ca-amph and Chl 5: Ol, Spin, Anth, Ca-amph and, (An) 6: Opx, Ol, Spin, Ca-amph and Chl 7: Opx, Ol, Spin, Ca-amph, Cpx and (An). (An) Indicates anorthite presence if not explicitly excluded from calculations. The orange bar shows pressure estimates for contact aureole formation derived from the discussion of Fig. 11