Articles | Volume 32, issue 6
Eur. J. Mineral., 32, 575–586, 2020
https://doi.org/10.5194/ejm-32-575-2020
Eur. J. Mineral., 32, 575–586, 2020
https://doi.org/10.5194/ejm-32-575-2020

Research article 03 Nov 2020

Research article | 03 Nov 2020

Equation of state and high-pressure phase behaviour of SrCO3

Nicole Biedermann et al.

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Short summary
Carbonates play a key role in the chemistry and dynamics of our planet. The role of SrCO3 in the deep mantle has received little attention due to its low abundance. However, knowing the high-pressure phase behaviour of natural carbonates across its full compositional range is essential to evaluate effects of chemical substitution in the system of deep-Earth carbonates. We performed powder and single-crystal X-ray diffraction up to 49 GPa and observed a phase transition in SrCO3 at around 26 GPa.