Core crystallization

Core crystallization

Crystallization of metallic cores

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Core processes | 9 December 2020

Thermal structure at the inner core boundary in dynamo simulations with heat equation for the whole core

Hiroaki Matsui

Resent seismic observations suggests that inner core has a seismic anisotropy. These studies suggest aspherical growth of the inner core, and slow viscous deformation of the inne...

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Core processes | 9 December 2020

3D Transdimensional Bayesian tomography of the Earth’s inner core

Henry Brett + Arwen Fedora Deuss + Karen Lythgoe ...

The inner core has been observed to contain regional heterogeneity in both isotropic and anisotropic seismic velocities, extending from the surface to the centre of the inner cor...

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Core processes | 9 December 2020

Origin of Temporal Changes of Inner-core Seismic Waves

Xiaodong Song

Time-varying PKIKP waves (traversing the inner core) from repeating earthquakes (doublets) provide compelling evidence for the temporal changes of the inner core and have mostly ...

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Core processes | 9 December 2020

Attenuation of the uppermost inner core viewed by tomography

Tanja Pejic + Hrvoje Tkalcic + Malcolm Sambridge ...

The inner core of the Earth remains one of the research puzzles within deep Earth sciences. While it has been extensively probed with various seismic methods, ranging from observ...

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Core processes | 9 December 2020

Inner Core Differential Rotation Inferred from Antipodal Seismic Observations

Seiji Tsuboi + Rhett Butler

The Earth’s Inner Core may rotate at a different speed than Earth’s crust–mantle. We use observations for antipodal earthquake and station pairs to examine the arrival time shift...

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