Comparisons of abundance profiles for different elements according to log(ΔM/M_*) (where ΔM is the mass between the considered layer and the surface) for a 1.4 M_⊙ at Z = 0.025 and 400 Myr between a model computed with the Montreal/Montpellier code (blue dashed curves) and the CESTAM code (red solid curves). The solid vertical lines indicate the position of the bottom of the surface convection zone of the models.