Geophysical Research Letters VOL.52 ISSUE 3 | 1 February 2025
Oxygen Driving Hydrogen Into the Inner Core: Implications for the Earth's Core Composition
Zhiming Zhang + Wei Wang + Jin Liu ...
Earth's core should contain light elements to account for the density deficit relative to pure iron as inferred from seismic observations. Of particular interest is hydrogen,...
Journal of Geophysical Research: Solid Earth VOL.130 ISSUE 3 | 2 March 2025
Seismological Structure of the Earth's Lowermost Outer Core (F Layer) Beneath the East‐Central Pacific
Toshiki Ohtaki + Satoshi Kaneshima + Taku Tsuchiya
During the inner core solidification, excess light elements are released into the outer core, which causes outer‐core convection. To understand this process, it is important...
Journal of Geophysical Research: Solid Earth VOL.130 ISSUE 3 | 7 March 2025
Thermodynamic Properties of Liquid Metal Using First‐Principles Molecular Dynamics: Implications for the Compositional and Thermal State of the Earth's Outer Core
Weiyi Liu + Paul D Asimow
The Earth's outer core consists of Fe‐Ni metallic liquid, with minor quantities of light elements such as Si, S, O, C, and H. Accurate equations of state of candidate...
AGU24 | 9 December 2024
Tilted Transverse Isotropy in the Earth's inner core from body waves and normal modes
Arwen Fedora Deuss + Henry Brett + Jeroen Tromp
The Earth's inner core is one of the most strongly anisotropic regions of our planet. On average, the anisotropy appears to be aligned with the Earth's rotation axis with...
AGU24 | 10 December 2024
Prediction of Fluctuations in Inner Core Rotation and Variations in Length-of-day based on Modelled Core Flow
Huifeng Zhang + Mathieu Dumberry
Convective flows facilitate the exchange of angular momentum between the solid Earth and liquid core, resulting in decadal changes in the length-of-day (ΔLOD). The viable...