P–T pseudosections for sample MS02-3 in the NCKFMASHTO system, calculated using the following bulk composition (mol%): H₂O = 1.57, SiO₂ = 47.59, Al₂O₃ = 9.42, CaO = 10.26, MgO = 12.28, FeO = 13.45, K₂O = 0.33, Na₂O = 2.09, TiO₂ = 1.80, O = 1.20. (a) P–T pseudosection with the proposed P–T path and isopleths of Ti content in amphibole, X_An in plagioclase, and Ti content in biotite for relevant assemblages. (b) Pseudosection presented with isopleths of X_Ca in garnet and Ca^M2 content in clinopyroxene for relevant assemblages. (c) Pseudosection presented with isopleths of X_Mg in garnet, clinopyroxene, orthopyroxene, and amphibole for relevant assemblages. The grey districts represent the P–T conditions of M₁–M₃ generations of mineral assemblages constrained by conventional thermobarometry.