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Progress in Earth and Planetary Science
Fig. 12 | Progress in Earth and Planetary Science

Fig. 12

From: Back-transformation processes in high-pressure minerals: implications for planetary collisions and diamond transportation from the deep Earth

Fig. 12

Analysis of pressure and temperature dependences of the back-transformation rate. For plotting purposes, the data are plotted after corrections to the pressure of 1 GPa using the activation volume determined in this study. Obtained kinetic parameters are summarized in Table 3. a Fits of the growth rate data in the ringwoodite-olivine (black circles; this study) and in the wadsleyite-olivine (red triangles; Reynard et al. 1996; Hu and Sharp 2017) back-transformations to Eq. (3). Large discrepancies between these growth rate data correspond to the difference in water contents by about 20 times (red and blue triangles) considering the water content exponent of 3.2 (see text). b Fits of the k data in the orthoenstatite crystallization from amorphous bridgmanite to Eq. (4)

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