Extended Data Fig. 9: Comparison of bulk sound velocity from diffraction and ultrasonic measurements.
From: Seismic velocities of CaSiO3 perovskite can explain LLSVPs in Earth’s lower mantle
Shown is a comparison of bulk sound velocity calculated from PVT EoSs, fitted to literature diffraction data (solid curves) with 2σ uncertainties shown by shaded regions, and only to that reported by Gréaux et al.20 (dashed curves), with bulk sound velocities calculated from ultrasonic measurements via vbulk = (vP2 − 4/3vS2)0.5 for data from Gréaux et al.20 (squares) and this study (circles). All curves and symbols are coloured for temperature (colour scale at right).
