Fig. 1: Oxygen diffusion coefficients in periclase.
From: Periclase deforms more slowly than bridgmanite under mantle conditions
The solid black line represents the diffusion coefficients of Yang and Flynn15. The black dashed line corresponds to the diffusion coefficients of Ita and Cohen14 at 0 GPa. The other lines (blue, green, red and magenta) correspond to equation (1) at 30, 60, 90 and 120 GPa respectively. The range of temperatures considered in this study [2,000 K:2,800 K] is shown with the grey shading. The symbols (filled circles) correspond to the (P, T) conditions along the geotherm considered in the present study12 (Table 2).
