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Progress in Earth and Planetary Science
Fig. 6 | Progress in Earth and Planetary Science

Fig. 6

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

Fig. 6

Changes of XRD patterns during the back-transformation in bridgmanite. a Amorphization of bridgmanite with increasing temperatures from 410 to 610 °C at ~ 1.2 GPa (Run M2619). b Crystallization of orthoenstatite from amorphous bridgmanite at 1.1 GPa and 770 °C (Run M2718). c Amorphization of bridgmanite occurred in 30 s, followed by orthoenstatite crystallization at 4.0 GPa and 820 °C (Run M2618). d Direct back-transformation from bridgmanite to high-P clinoenstatite without amorphization at 7.9 GPa and 820 °C (Run M2715). St: stishovite, Mj: majorite, *: unknown

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