Fig. 3: Pair distribution functions of K2Mg(CO3)2 glass at different pressures.
From: Tetracarbonates in silicate melts may be at the origin of a deep carbon reservoir in the deep Earth
The PDFs were obtained by Fourier transforms of the structure factors (Supplementary Fig. 6a). a The gray shaded areas highlight the original position of C-O and K-O peaks (Mg-O in between) and emphasize their shift upon compression. b Close-up on the C-O peak (representing the bond length distribution).
