Solidus and liquidus curves. (A) Solidus and liquidus curves used in this study. The black line shows an adiabat with surface temperature T_surf = 2800 K where latent heat effects are included in the mixed phase region (0 < ϕ < 1). (B) Zoomed-in view of the region extending to a depth of 3000 km with comparison to different solidus and liquidus curves at higher pressures from experimental and thermodynamic calculation studies. (s) indicates the solidus curves (dashed lines) and (l) indicates the liquidus curves (solid lines).