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Oxygen and Mg diffusion in anorthite. Solid lines are fits to experimental data, and dashed lines are extrapolations to sustained temperatures required for 10 μm2 of diffusion per 1 million years. Dry oxygen diffusion data: Ryerson and McKeegan (1994). Wet oxygen diffusion data: Giletti et al. (1978). Dry Mg diffusion data: LaTourrette and Wasserburg (1998) and Orman et al. (2014).
