Thermal evolution of the core with a high thermal conductivity

S Labrosse - Physics of the Earth and Planetary Interiors, 2015 - Elsevier
The rate at which heat is extracted across the core mantle boundary (CMB) is constrained by
the requirement of dynamo action in the core. This constraint can be computed explicitly …

[HTML][HTML] Thermal and electrical conductivity of solid iron and iron–silicon mixtures at Earth's core conditions

M Pozzo, C Davies, D Gubbins, D Alfè - Earth and Planetary Science Letters, 2014 - Elsevier
We report on the thermal and electrical conductivities of solid iron and iron–silicon mixtures
(Fe 0.92 Si 0.08 and Fe 0.93 Si 0.07), representative of the composition of the Earth's solid …

Multidisciplinary constraints on the thermal‐chemical boundary between Earth's core and mantle

DA Frost, MS Avery, BA Buffett… - Geochemistry …, 2022 - Wiley Online Library
Heat flux from the core to the mantle provides driving energy for mantle convection thus
powering plate tectonics, and contributes a significant fraction of the geothermal heat …

Cooling history of Earth's core with high thermal conductivity

CJ Davies - Physics of the Earth and Planetary Interiors, 2015 - Elsevier
Thermal evolution models of Earth's core constrain the power available to the geodynamo
process that generates the geomagnetic field, the evolution of the solid inner core and the …

Partitioning of sulfur between solid and liquid iron under Earth's core conditions: Constraints from atomistic simulations with machine learning potentials

Z Zhang, G Csányi, D Alfe - Geochimica et Cosmochimica Acta, 2020 - Elsevier
Partition coefficients of light elements between the solid and liquid iron phases are crucial
for uncovering the state and dynamics of the Earth's core. As one of the major light element …

Electrical resistivity and thermal conductivity of hcp Fe–Ni alloys under high pressure: Implications for thermal convection in the Earth's core

H Gomi, K Hirose - Physics of the Earth and Planetary Interiors, 2015 - Elsevier
We measured the electrical resistivity of Fe–Ni alloys (iron with 5, 10, and 15 wt.% nickel)
using four-terminal method in a diamond-anvil cell up to 70 GPa at 300 K. The results …

Recent geomagnetic variations and the force balance in Earth's core

J Aubert - Geophysical Journal International, 2020 - academic.oup.com
The nature of the force balance that governs the geodynamo is debated. Recent theoretical
analyses and numerical simulations support a quasigeotrophic (QG), magneto-Archimedes …

Earthʼs inner core: Innermost inner core or hemispherical variations?

KH Lythgoe, A Deuss, JF Rudge, JA Neufeld - Earth and Planetary Science …, 2014 - Elsevier
The structure of Earthʼs deep inner core has important implications for core evolution, since
it is thought to be related to the early stages of core formation. Previous studies have …

Thermal convection in Earth's inner core with phase change at its boundary

R Deguen, T Alboussiere… - Geophysical Journal …, 2013 - academic.oup.com
Inner core translation, with solidification on one hemisphere and melting on the other,
provides a promising basis for understanding the hemispherical dichotomy of the inner core …

The strength of gravitational core‐mantle coupling

CJ Davies, DR Stegman… - Geophysical Research …, 2014 - Wiley Online Library
Gravitational coupling between Earth's core and mantle has been proposed as an
explanation for a 6 year variation in the length‐of‐day (ΔLOD) signal and plays a key role in …