European Journal of Mineralogy
European Journal of Mineralogy
European Journal of Mineralogy
Articles | Volume 34, issue 3
Articles | Volume 34, issue 3
https://doi.org/10.5194/ejm-34-351-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/ejm-34-351-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 34, issue 3
Research article
 | 
13 Jun 2022
Research article |  | 13 Jun 2022

High-pressure and high-temperature structure and equation of state of Na3Ca2La(CO3)5 burbankite

Sula Milani, Deborah Spartà, Patrizia Fumagalli, Boby Joseph, Roberto Borghes, Valentina Chenda, Juliette Maurice, Giorgio Bais, and Marco Merlini

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Short summary
This work presents new thermoelastic parameters and the structural evolution of burbankite at high pressure and high temperature, obtained by in situ synchrotron radiation single-crystal diffraction measurements. Burbankite is a carbonate that may potentially play a key role as an upper-mantle reservoir of light REE3+. We observed that the density of burbankite is greater with respect to carbonatitic magmas, indicating a possible fractionation of this phase in upper-mantle conditions.
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Probing the Earth: experiments and mineral physics at mantle...