Articles | Volume 12, issue 2
Solid Earth, 12, 421–437, 2021
https://doi.org/10.5194/se-12-421-2021
Solid Earth, 12, 421–437, 2021
https://doi.org/10.5194/se-12-421-2021
Research article
22 Feb 2021
Research article | 22 Feb 2021

Timescales of chemical equilibrium between the convecting solid mantle and over- and underlying magma oceans

Daniela Paz Bolrão et al.

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Cited articles

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Abe, Y. and Matsui, T.: Evolution of an Impact-Generated H2O-CO2 Atmosphere and Formation of a Hot Proto-Ocean on Earth, J. Atmos. Sci., 45, 3081–3101, https://doi.org/10.1175/1520-0469(1988)045<3081:EOAIGH>2.0.CO;2, 1988. a
Agrusta, R., Morison, A., Labrosse, S., Deguen, R., Alboussière, T., Tackley, P. J., and Dubuffet, F.: Mantle convection interacting with magma oceans, Geophys. J. Int., 220, 1878–1892, https://doi.org/10.1093/gji/ggz549, 2019. a, b, c
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Short summary
We use numerical models to investigate the thermo-chemical evolution of a solid mantle during a magma ocean stage. When applied to the Earth, our study shows that the solid mantle and a magma ocean tend toward chemical equilibration before crystallisation of this magma ocean. Our findings suggest that a very strong chemical stratification of the solid mantle is unlikely to occur (as predicted by previous studies), which may explain why the Earth’s mantle is rather homogeneous in composition.