European Journal of Mineralogy
European Journal of Mineralogy
European Journal of Mineralogy
Articles | Volume 32, issue 6
Articles | Volume 32, issue 6
https://doi.org/10.5194/ejm-32-575-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/ejm-32-575-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 32, issue 6
Research article
 | 
03 Nov 2020
Research article |  | 03 Nov 2020

Equation of state and high-pressure phase behaviour of SrCO3

Nicole Biedermann, Elena Bykova, Wolfgang Morgenroth, Ilias Efthimiopoulos, Jan Mueller, Georg Spiekermann, Konstantin Glazyrin, Anna Pakhomova, Karen Appel, and Max Wilke

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Cited articles

Angel, R. J., Alvaro, M., and Gonzalez-Platas, J.: EosFit7c and a Fortran module (library) for equation of state calculations, Z. Kristallogr., 229, 405–419, https://doi.org/10.1515/zkri-2013-1711, 2014. a, b
Antao, S. M. and Hassan, I.: The orthorhombic structure of CaCO3, SrCO3, PbCO3 and BaCO3: Linear structural trends, The Canadian Mineralogist, 47, 1245–1255, https://doi.org/10.3749/canmin.47.5.1245, 2009. a, b
Arapan, S. and Ahuja, R.: High-pressure phase transformations in carbonates, Phys. Rev. B, 82, 184115, https://doi.org/10.1103/physrevb.82.184115, 2010. a, b
Bayarjargal, L., Fruhner, C.-J., Schrodt, N., and Winkler, B.: CaCO3 phase diagram studied with Raman spectroscopy at pressures up to 50  GPa and high temperatures and DFT modeling, Phys. Earth Planet. In., 281, 31–45, https://doi.org/10.1016/j.pepi.2018.05.002, 2018. a, b, c
Biedermann, N., Speziale, S., Winkler, B., Reichmann, H. J., Koch-Müller, M., and Heide, G.: High-pressure phase behavior of SrCO3: an experimental and computational Raman scattering study, Phys. Chem. Miner., 44, 335–343, https://doi.org/10.1007/s00269-016-0861-2, 2017a. a, b, c, d, e
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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.
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