Articles | Volume 15, issue 5
https://doi.org/10.5194/se-15-617-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/se-15-617-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
14 May 2024
Research article |
| 14 May 2024
| 14 May 2024
On the impact of true polar wander on heat flux patterns at the core–mantle boundary
Thomas Frasson
CORRESPONDING AUTHOR
Univ. Grenoble Alpes, Univ. Savoie Mont Blanc, CNRS, IRD, Univ. Gustave Eiffel, ISTerre, 38000 Grenoble, France
Stéphane Labrosse
ENS de Lyon, CNRS, Université Lyon-1, LGL-TPE, 46 allée d'Italie, 69007 Lyon, France
Henri-Claude Nataf
Univ. Grenoble Alpes, Univ. Savoie Mont Blanc, CNRS, IRD, Univ. Gustave Eiffel, ISTerre, 38000 Grenoble, France
Nicolas Coltice
Université Côte d'Azur, CNRS, Observatoire de la Côte d'Azur, IRD, GEOAZUR, France
Nicolas Flament
Environmental Futures, School of Earth, Atmospheric and Life Sciences, University of Wollongong, Northfields Avenue, NSW 2522 Wollongong, Australia
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Short summary
Heat flux heterogeneities at the bottom of Earth's mantle play an important role in the dynamic of the underlying core. Here, we study how these heterogeneities are affected by the global rotation of the Earth, called true polar wander (TPW), which has to be considered to relate mantle dynamics with core dynamics. We find that TPW can greatly modify the large scales of heat flux heterogeneities, notably at short timescales. We provide representative maps of these heterogeneities.
Heat flux heterogeneities at the bottom of Earth's mantle play an important role in the dynamic...
