Gyres, jets and waves in the Earth's core

CC Finlay, N Gillet, J Aubert, PW Livermore… - Nature Reviews Earth & …, 2023 - nature.com
Turbulent motions of liquid metal in Earth's outer core generate the geomagnetic field.
Magnetic field observations from low-Earth-orbit satellites, together with advanced numerical …

Longitudinal structure of Earth's magnetic field controlled by lower mantle heat flow

JE Mound, CJ Davies - Nature Geoscience, 2023 - nature.com
Thermal interactions between Earth's core and mantle provide the power that maintains the
geomagnetic field. However, the effect of these interactions and, in particular, the …

The lunar solid inner core and the mantle overturn

A Briaud, C Ganino, A Fienga, A Mémin, N Rambaux - Nature, 2023 - nature.com
Seismological models from Apollo missions provided the first records of the Moon inner
structure with a decrease in seismic wave velocities at the core–mantle boundary,–. The …

The physical oceanography of ice-covered moons

KM Soderlund, M Rovira-Navarro… - Annual Review of …, 2024 - annualreviews.org
In the outer solar system, a growing number of giant planet satellites are now known to be
abodes for global oceans hidden below an outer layer of ice. These planetary oceans are a …

State and evolution of the geodynamo from numerical models reaching the physical conditions of Earth's core

J Aubert - Geophysical Journal International, 2023 - academic.oup.com
Our understanding of the geodynamo has recently progressed thanks to geomagnetic data
of improved quality, and analyses resting on numerical simulations of increasing realism …

The “new core paradox”: Challenges and potential solutions

P Driscoll, C Davies - Journal of Geophysical Research: Solid …, 2023 - Wiley Online Library
The “new core paradox” suggests that the persistence of the geomagnetic field over nearly
all of Earth history is in conflict with the core being highly thermally conductive, which makes …

Mid-Proterozoic geomagnetic field was more consistent with a dipole than a quadrupole

Z Gong, DAD Evans, Z Zhang, C Yan - Geology, 2023 - pubs.geoscienceworld.org
The current morphology of Earth's time-averaged magnetic field can be approximated to a
geocentric axial dipole (GAD), but whether such an approximation remains valid in deep …

Non‐isotropic contraction and expansion of samples in diamond anvil cells: Implications for thermal conductivity at the core‐mantle boundary

SS Lobanov, ZM Geballe - Geophysical Research Letters, 2022 - Wiley Online Library
The thermal conductivities of mantle and core materials have a major impact on planetary
evolution, but their experimental determination requires precise knowledge of sample …

Chasing tails: Insights from micromagnetic modeling for thermomagnetic recording in non‐uniform magnetic structures

L Nagy, W Williams, L Tauxe… - Geophysical Research …, 2022 - Wiley Online Library
Paleointensities are key to understanding the formation and evolution of Earth and are
determined from rocks which record magnetic fields upon cooling; however, experimental …

Precession-driven flows in stress-free ellipsoids

J Vidal, D Cébron - Journal of Fluid Mechanics, 2023 - cambridge.org
Motivated by modelling rotating turbulence in planetary fluid layers, we investigate
precession-driven flows in ellipsoids subject to stress-free boundary conditions (SF-BC). The …