Sustaining Earth's magnetic dynamo
Earth's magnetic field is generated by fluid motions in the outer core. This geodynamo has
operated for over 3.4 billion years. However, the mechanism that has sustained the …
operated for over 3.4 billion years. However, the mechanism that has sustained the …
A hydrogen-enriched layer in the topmost outer core sourced from deeply subducted water
The Earth's core–mantle boundary presents a dramatic change in materials, from silicate to
metal. While little is known about chemical interactions between them, a thin layer with a …
metal. While little is known about chemical interactions between them, a thin layer with a …
[HTML][HTML] Towards reconciling experimental and computational determinations of Earth's core thermal conductivity
The thermal conductivity (κ) of Earth's core is a critical parameter that controls predictions of
core cooling rate, inner core age and the power available to the geodynamo. However, the …
core cooling rate, inner core age and the power available to the geodynamo. However, the …
Regionally-triggered geomagnetic reversals
F Terra-Nova, H Amit - Scientific Reports, 2024 - nature.com
Systematic studies of numerical dynamo simulations reveal that the transition from dipole-
dominated non-reversing fields to models that exhibit reversals occurs when inertial effects …
dominated non-reversing fields to models that exhibit reversals occurs when inertial effects …
CCMOC: a new view of the Earth's outer core through the global coda correlation wavefield
Increasing seismic evidence has accumulated, suggesting that the Earth's outer core
consists of distinct zones of low P-wave velocities in the top and bottom regions relative to …
consists of distinct zones of low P-wave velocities in the top and bottom regions relative to …
Dynamics in Earth's Core Arising from Thermo‐Chemical Interactions with the Mantle
CJ Davies, S Greenwood - Core‐Mantle Co‐Evolution: An …, 2023 - Wiley Online Library
Thermo‐chemical interactio ns at the core‐mantle boundary (CMB) play an integral role in
determining the dynamics and evolution of Earth's deep interior. This review considers the …
determining the dynamics and evolution of Earth's deep interior. This review considers the …
[HTML][HTML] On the evolution of thermally stratified layers at the top of Earth's core
Stable stratification at the top of the Earth's outer core has been suggested based upon
seismic and geomagnetic observations, however, the origin of the layer is still unknown. In …
seismic and geomagnetic observations, however, the origin of the layer is still unknown. In …
CCREM: New reference Earth model from the global coda‐correlation wavefield
The existing reference Earth models have provided an excellent one‐dimensional
representation of Earth's properties as a function of its radius and explained many seismic …
representation of Earth's properties as a function of its radius and explained many seismic …
Internal gravity waves in a stratified layer atop a convecting liquid core in a non-rotating spherical shell
Seismic and magnetic observations have suggested the presence of a stably stratified layer
atop Earth's core. Such a layer could affect the morphology of the geomagnetic field and the …
atop Earth's core. Such a layer could affect the morphology of the geomagnetic field and the …
A regime diagram for the slurry F-layer at the base of Earth's outer core
Seismic observations of a slowdown in P wave velocity at the base of Earth's outer core
suggest the presence of a stably-stratified region known as the F-layer. This raises an …
suggest the presence of a stably-stratified region known as the F-layer. This raises an …