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Progress in Earth and Planetary Science
Fig. 13 | Progress in Earth and Planetary Science

Fig. 13

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

Fig. 13

Back-transformations in timescales of 0.1–100 s and 10–100 days expected in shocked meteorites and diamond inclusions, respectively. a Kinetic boundaries for the 1 µm and 20 µm growth of olivine from ringwoodite including effects of water. b Amorphization conditions in bridgmanite and kinetic boundaries for 10% and 90% crystallization of orthoenstatite from amorphous bridgmanite. Typical three thermal models (A–C) during the post-shock annealing stage are shown in bold dashed lines. (A) 20 µm inside the host with vein thickness of 0.8–1 mm, Pmax ~ 15 GPa and post-shock T ~ 1500 K (Hu and Sharp 2017). (B) 100 µm inside the host with vein thickness of 2 mm, Pmax ~ 20 GPa and post-shock T ~ 1240 K (Ohtani et al. 2004). (C) 200 µm clast in the shock vein of 0.8–1 mm thickness, Pmax ~ 15 GPa and post-shock T > 2000 K (Hu and Sharp 2017)

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