Constraints from material properties on the dynamics and evolution of Earth's core

C Davies, M Pozzo, D Gubbins, D Alfe - Nature Geoscience, 2015 - nature.com
The Earth's magnetic field is powered by energy supplied by the slow cooling and freezing
of the liquid iron core. Efforts to determine the thermal and chemical history of the core have …

[HTML][HTML] Core formation, mantle differentiation and core-mantle interaction within Earth and the terrestrial planets

RG Trønnes, MA Baron, KR Eigenmann, MG Guren… - Tectonophysics, 2019 - Elsevier
The terrestrial planets accreted from a diverse suite of solar system materials ranging from
strongly O-deficient materials similar to enstatite chondrites via ordinary chondrite materials …

Snowball Earth climate dynamics and Cryogenian geology-geobiology

PF Hoffman, DS Abbot, Y Ashkenazy, DI Benn… - Science …, 2017 - science.org
Geological evidence indicates that grounded ice sheets reached sea level at all latitudes
during two long-lived Cryogenian (58 and≥ 5 My) glaciations. Combined uranium-lead and …

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 …

Regional stratification at the top of Earth's core due to core–mantle boundary heat flux variations

J Mound, C Davies, S Rost, J Aurnou - Nature Geoscience, 2019 - nature.com
Earth's magnetic field is generated by turbulent motion in its fluid outer core. Although the
bulk of the outer core is vigorously convecting and well mixed, some seismic, geomagnetic …

Dynamo constraints on the long-term evolution of Earth's magnetic field strength

CJ Davies, RK Bono, DG Meduri… - Geophysical Journal …, 2022 - academic.oup.com
Elucidating the processes in the liquid core that have produced observed palaeointensity
changes over the last 3.5 Gyr is crucial for understanding the dynamics and long-term …

A dynamical prospective on interannual geomagnetic field changes

N Gillet, F Gerick, R Angappan, D Jault - Surveys in Geophysics, 2022 - Springer
Geomagnetic observations from satellites have highlighted interannual variations in the rate
of change of the magnetic field originating from Earth's core. Downward continued to the …

Advances in geodynamo modelling

J Wicht, S Sanchez - Geophysical & Astrophysical Fluid Dynamics, 2019 - Taylor & Francis
This paper reviews the remarkable developments in numerical geodynamo simulations over
the last few years. Simulations with Ekman numbers as low as E= 10− 8 E= 10− 8 are now …

Electrical resistivity of liquid Fe to 12 GPa: Implications for heat flow in cores of terrestrial bodies

RE Silber, RA Secco, W Yong, JAH Littleton - Scientific reports, 2018 - nature.com
Electrical and thermal transport properties of liquid Fe under high pressure have important
implications for the dynamics and thermal evolution of planetary cores and the geodynamo …

The thermal conductivity of Earth's core: A key geophysical parameter's constraints and uncertainties

Q Williams - Annual Review of Earth and Planetary Sciences, 2018 - annualreviews.org
The thermal conductivity of iron alloys at high pressures and temperatures is a critical
parameter in governing (a) the present-day heat flow out of Earth's core,(b) the inferred age …