“…Exhumation of migmatites and leucogranites within the crust is generally favored by post-collisional collapse or exhumation of metamorphic core complexes along crustal-scale strike-slip shear zones (e.g., Hutton, 1988;Searle, 2006;Searle et al, 2010;Cao et al, 2011a;Liu et al, 2015bLiu et al, , 2020. The presence of melt weakens rock strength and promotes faster deformation, ultimately influencing how orogenic belts form (e.g., Rosenberg and Handy, 2005;Vanderhaeghe, 2009;Alina et al, 2019). Therefore, accurate dating of the timing of melting, determining the protoliths, and characterizing the structure and pressure-temperature (P-T) conditions of partial melting are important for understanding the evolutionary processes and dynamics of the late stages of orogenesis (e.g., Labrousse et al, 2011).…”