Articles | Volume 15, issue 2
https://doi.org/10.5194/se-15-215-2024
https://doi.org/10.5194/se-15-215-2024
Review article
 | 
09 Feb 2024
Review article |  | 09 Feb 2024

Hydrogen solubility of stishovite provides insights into water transportation to the deep Earth

Mengdan Chen, Changxin Yin, Danling Chen, Long Tian, Liang Liu, and Lei Kang

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Subject area: Tectonic plate interactions, magma genesis, and lithosphere deformation at all scales | Editorial team: Structural geology and tectonics, paleoseismology, rock physics, experimental deformation | Discipline: Tectonics
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Cited articles

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Bromiley, G. D., Bromiley, F. A., and Bromiley, D. W.: On the mechanisms for H and Al incorporation in stishovite, Phys. Chem. Mineral., 33, 613–621, https://doi.org/10.1007/s00269-006-0107-9, 2006. 
Chao, E. C. T., Fahey, J. J., Littler, J., and Milton, D. J.: Stishovite, SiO2, a very high pressure new mineral from Meteor Crater, Arizona, J. Geophys. Res., 67, 419–421, https://doi.org/10.1029/JZ067i001p00419, 1962. 
Chung, J. I. and Kagi, H.: High concentration of water in stishovite in the MORB system, Geophys. Res. Lett., 29, 2020, https://doi.org/10.1029/2002GL015579, 2002. 
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Short summary

Stishovite remains stable under mantle conditions and can incorporate various amounts of water in its crystal structure. We provide a systematic review of previous studies on water in stishovite and propose a new model for water solubility of Al-bearing stishovite. Calculation results based on this model suggest that stishovite may effectively accommodate water from the breakdown of hydrous minerals and could make an important contribution to water enrichment in the mantle transition zone.