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Figure 1

From: The role of diffusion-driven pure climb creep on the rheology of bridgmanite under lower mantle conditions

Figure 1The alternative text for this image may have been generated using AI.

Diffusion coefficients Dsd along the geotherm. Here are shown the values for intrinsic diffusion obtained from the Si Schottky vacancy formation enthalpy of Watson et al.59 (black dashed line) together with the extrinsic values for Mg obtained with the selected vacancies concentrations Xv1 and Xv2 (solid and dashed red lines, respectively).

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