Figure 2.23. Arrhenius fit to Fe-Mg Olivine Diffusion Data. Log D vs. 1000/T graph of a best fit Arrhenius line to Fe-Mg interdiffusion data from several authors simplified from the result determined by Dohmen and Chakraborty (2007). Experiments with oxygen fugacities greater than 10-10 Pa were used in the fit. The Arrhenius equation represented by the line is D (m2/s) = (6.17e-10)Exp(-201000/(RT), where R is the gas constant and T is the temperature in degrees Kelvin.