Asthenosphere dynamics based on the H(2)O dependence of element diffusivity in olivine

The oceanic asthenosphere shows two enigmatic features: low viscosity and high electrical conductivity. Their origins gather wide attention, but remain unsolved. Recent self-diffusivity measurements as a function of H(2)O content in olivine demonstrated that the H2O-incorporation in olivine cannot s...

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Detalles Bibliográficos
Autores principales: Katsura, Tomoo, Fei, Hongzhan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Oxford University Press 2020
Materias:
Earth Sciences
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8288452/
https://www.ncbi.nlm.nih.gov/pubmed/34691618
http://dx.doi.org/10.1093/nsr/nwaa278
Descripción
Sumario:The oceanic asthenosphere shows two enigmatic features: low viscosity and high electrical conductivity. Their origins gather wide attention, but remain unsolved. Recent self-diffusivity measurements as a function of H(2)O content in olivine demonstrated that the H2O-incorporation in olivine cannot soften the asthenosphere, but it enhances the ionic conductivity, and causes the high-conductivity anomaly.

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