Fig. 1 | Nature Communications

Fig. 1

From: Valence and spin states of iron are invisible in Earth’s lower mantle

Fig. 1

Full-profile Le Bail refinement confirms transformation of akimotoite to bridgmanite (Bdg) structure. Measured XRD data for (Mg0.46Fe3+0.53)(Si0.49Fe3+0.51)O3 composition at 44.8 GPa and 300 K (black dots) are consistent with orthorhombic GdFeO3-type Bdg (black ticks below). Le Bail fit (red curve) also includes expected peak positions for Au calibrant (yellow ticks) and Ne medium (blue ticks)

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