Thermobarometric modelling of metapelitic sample MCE339v located in the Cortical Pelvoux. (A) Chemical profile of a garnet. (B) T-XH₂O diagram calculated with a pressure of 0.7 GPa, the mineral assemblage of the sample indicates a H₂O content of 1.33 wt%. (C) Pseudosection calculated in the MnNCKFMASH system. (D) Modelling of the Qcmp factor of the mineral composition of biotite based on MgO, FeO, MnO, Al₂O₃ and SiO₂ contents (Tab. S2). Bi: Biotite; Mu: muscovite; Crd: Cordierite; Kfs: K-feldspar; Pl: Plagioclase; Gt: Garnet; and: Andalousite; ky: Kyanite; sill: Sillimanite; Opx: Orthopyroxene; q: Quartz; melt: silicate liquid.