Fig. 4: Observed vertical velocity profiles compared with calculated velocities for major relevant rock types at different temperature.
Calculations were carried out with the Perple_X_6.8.5 phase equilibrium modeling program36 for the internally consistent thermodynamic dataset ds6237. The composition of rocks is chosen according to xenoliths (felsic granulite and mafic-intermediate granulite) in southern Tibet39,40 as well as a pelite granulite1 and a global average lower crustal model41. a Calculated geotherms for different assumed heat flow values. b Composition of the four chosen rock types. c–f Observed vertical velocity profiles in the four characteristic tectonic parts along the profile, superimposed by calculated velocity profiles for the four selected compositions.
