Articles | Volume 33, issue 4
https://doi.org/10.5194/ejm-33-519-2021
https://doi.org/10.5194/ejm-33-519-2021
Research article
 | 
30 Aug 2021
Research article |  | 30 Aug 2021

Equation of state and sound wave velocities of fayalite at high pressures and temperatures: implications for the seismic properties of the martian mantle

Frédéric Béjina, Misha Bystricky, Nicolas Tercé, Matthew L. Whitaker, and Haiyan Chen

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Cited articles

Anderson, O. L.: The Earth's core and the phase diagram of iron, Philos. T. R. Soc. A, 306, 21–35, https://doi.org/10.1098/rsta.1982.0063, 1982. a
Andrault, D., Bouhifd, M., Itié, J., and Richet, P.: TS3 Compression and amorphization of (Mg,Fe)2SiO4 olivines: An X-ray diffraction study up to 70 GPa, Phys. Chem. Miner., 22, 99–107, https://doi.org/10.1007/BF00202469, 1995. 
Angel, R. J.: Equations of State, Rev. Mineral. Geochem., 41, 35–59, https://doi.org/10.2138/rmg.2000.41.2, 2000. a
Angel, R. J., Alvaro, M., and González-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, c, d
Béjina, F. and Bystricky, M.: Use of the spark plasma sintering technique for the synthesis of dense mineral aggregates suitable for high-pressure experiments, High Pressure Res., 29, 630–634, https://doi.org/10.1080/08957950903425249, 2009. a
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Short summary
We performed experimental measurements of elastic parameters of fayalite. The idea is to better define the effect of olivine Fe content on these parameters and test how sensitive these are when adjusting mineralogical models to seismic data. The trend of the olivine shear modulus with Fe content is well defined, but that of the bulk modulus remains less constrained, and more experiments on olivines with different Fe compositions are needed.