Fig. 5 | Nature Communications

Fig. 5

From: Temperature-induced amorphization in CaCO3 at high pressure and implications for recycled CaCO3 in subduction zones

Fig. 5

Multi-angle energy-dispersive X-ray diffractions of CaCO3. a Amorphous CaCO3 at 5.2 GPa and 1773 K; b Liquid CaCO3 at 5.5 GPa and 1923 K. The liquid state was determined by the falling of Pt sphere. Two sharp peaks at 61.114 keV (2θ = 12°) and 96.640 keV (2θ = 3°) with d = 0.970(1) Å and d = 2.450(1) Å in a are from MgO. The sharp peak at 38.279 keV (2θ = 4°) with d = 4.640 (1) Å in b may come from other assembly materials

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