Articles | Volume 15, issue 5
https://doi.org/10.5194/se-15-617-2024
https://doi.org/10.5194/se-15-617-2024
Research article
 | 
14 May 2024
Research article |  | 14 May 2024

On the impact of true polar wander on heat flux patterns at the core–mantle boundary

Thomas Frasson, Stéphane Labrosse, Henri-Claude Nataf, Nicolas Coltice, and Nicolas Flament

Related authors

True polar wander and heat flux patterns at the core-mantle boundary in a mantle convection simulation
Thomas Frasson, Stéphane Labrosse, Henri-Claude Nataf, and Nicolas Coltice
EGUsphere, https://doi.org/10.5194/egusphere-2022-1172,https://doi.org/10.5194/egusphere-2022-1172, 2022
Preprint archived
Short summary

Related subject area

Subject area: Core and mantle structure and dynamics | Editorial team: Geodynamics and quantitative modelling | Discipline: Geodynamics
Modeling liquid transport in the Earth's mantle as two-phase flow: effect of an enforced positive porosity on liquid flow and mass conservation
Changyeol Lee, Nestor G. Cerpa, Dongwoo Han, and Ikuko Wada
Solid Earth, 15, 23–38, https://doi.org/10.5194/se-15-23-2024,https://doi.org/10.5194/se-15-23-2024, 2024
Short summary
Transport mechanisms of hydrothermal convection in faulted tight sandstones
Guoqiang Yan, Benjamin Busch, Robert Egert, Morteza Esmaeilpour, Kai Stricker, and Thomas Kohl
Solid Earth, 14, 293–310, https://doi.org/10.5194/se-14-293-2023,https://doi.org/10.5194/se-14-293-2023, 2023
Short summary
Influence of heterogeneous thermal conductivity on the long-term evolution of the lower-mantle thermochemical structure: implications for primordial reservoirs
Joshua Martin Guerrero, Frédéric Deschamps, Yang Li, Wen-Pin Hsieh, and Paul James Tackley
Solid Earth, 14, 119–135, https://doi.org/10.5194/se-14-119-2023,https://doi.org/10.5194/se-14-119-2023, 2023
Short summary
On the choice of finite element for applications in geodynamics
Cedric Thieulot and Wolfgang Bangerth
Solid Earth, 13, 229–249, https://doi.org/10.5194/se-13-229-2022,https://doi.org/10.5194/se-13-229-2022, 2022
Short summary
Coupled dynamics and evolution of primordial and recycled heterogeneity in Earth's lower mantle
Anna Johanna Pia Gülcher, Maxim Dionys Ballmer, and Paul James Tackley
Solid Earth, 12, 2087–2107, https://doi.org/10.5194/se-12-2087-2021,https://doi.org/10.5194/se-12-2087-2021, 2021
Short summary

Cited articles

Abdi, H. and Williams, L. J.: Principal component analysis, WIREs Comp. Stat., 2, 433–459, https://doi.org/10.1002/wics.101, 2010. a
Amit, H., Choblet, G., Olson, P., Monteux, J., Deschamps, F., Langlais, B., and Tobie, G.: Towards more realistic core-mantle boundary heat flux patterns: a source of diversity in planetary dynamos, Prog. Earth Planet. Sci., 2, 26, https://doi.org/10.1186/s40645-015-0056-3, 2015. a
Arnould, M., Coltice, N., Flament, N., and Mallard, C.: Plate tectonics and mantle controls on plume dynamics, Earth Planet. Sc. Lett., 547, 116439, https://doi.org/10.1016/j.epsl.2020.116439, 2020. a
Besse, J. and Courtillot, V.: Apparent and true polar wander and the geometry of the geomagnetic field over the last 200 Myr, J. Geophys. Res., 107, EPM 6-1–EPM 6-31, https://doi.org/10.1029/2000JB000050, 2002. a, b
Biggin, A. J., Steinberger, B., Aubert, J., Suttie, N., Holme, R., Torsvik, T. H., van der Meer, D. G., and van Hinsbergen, D. J. J.: Possible links between long-term geomagnetic variations and whole-mantle convection processes, Nat. Geosci., 5, 526–533, https://doi.org/10.1038/ngeo1521, 2012. a
Download
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.