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Variation in bridgmanite grain size accounts for the mid-mantle viscosity jump
A viscosity jump of one to two orders of magnitude in the lower mantle of Earth at 800–1,200-km depth is inferred from geoid inversions and slab-subducting speeds. This jump is known as the mid-mantle viscosity jump(1,2). The mid-mantle viscosity jump is a key component of lower-mantle dynamics and...
| Autores principales: | , , , , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
Nature Publishing Group UK
2023
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10447242/ https://www.ncbi.nlm.nih.gov/pubmed/37407826 http://dx.doi.org/10.1038/s41586-023-06215-0 |