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Fig. 2 | Progress in Earth and Planetary Science

Fig. 2

From: Unit cell determination of coexisting post-perovskite and H-phase in (Mg,Fe)SiO3 using multigrain XRD: compositional variation across a laser heating spot at 119 GPa

Fig. 2

Unit cell volumes of coexisting (Mg,Fe)SiO3 ppv and H-phase across a laser heating spot. The unit cell volumes of a (Mg,Fe)SiO3 ppv and b H-phase obtained using multigrain XRD are plotted as function of distance from the heating center to the margin at steps of 5 μm in a laser-heated sample at 119 GPa. The unit cell volumes of ppv and H-phase decrease by 0.16 and 0.54 %, respectively, from the center to 10 μm off the center, while the sample pressure remained the same in the Ne quasi-hydrostatic environment

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