[HTML][HTML] Light elements in the Earth's core

K Hirose, B Wood, L Vočadlo - Nature Reviews Earth & Environment, 2021 - nature.com
Constraining the core's composition is essential for understanding Earth accretion, core
formation and the sustainment of Earth's magnetic field. Earth's outer and inner core exhibit …

Seismic detection of the martian core

SC Stähler, A Khan, WB Banerdt, P Lognonné… - Science, 2021 - science.org
Clues to a planet's geologic history are contained in its interior structure, particularly its core.
We detected reflections of seismic waves from the core-mantle boundary of Mars using …

From short to medium range order in glasses and melts by diffraction and Raman spectroscopy

JWE Drewitt, L Hennet… - Reviews in Mineralogy …, 2022 - pubs.geoscienceworld.org
The structure of glasses and the melts from which they are formed is intrinsically disordered,
making their structural characterization difficult. Whilst the structure of solid minerals can be …

Evidence for a liquid silicate layer atop the Martian core

A Khan, D Huang, C Durán, PA Sossi, D Giardini… - Nature, 2023 - nature.com
Seismic recordings made during the InSight mission suggested that Mars's liquid core would
need to be approximately 27% lighter than pure liquid iron,, implying a considerable …

Geophysical and cosmochemical evidence for a volatile-rich Mars

A Khan, PA Sossi, C Liebske, A Rivoldini… - Earth and Planetary …, 2022 - Elsevier
Constraints on the composition of Mars principally derive from chemical analyses of a set of
Martian meteorites that rely either on determinations of their refractory element abundances …

[HTML][HTML] Spin state and deep interior structure of Mars from InSight radio tracking

S Le Maistre, A Rivoldini, A Caldiero, M Yseboodt… - Nature, 2023 - nature.com
Abstract Knowledge of the interior structure and atmosphere of Mars is essential to
understanding how the planet has formed and evolved. A major obstacle to investigations of …

Chemical compositions of the outer core examined by first principles calculations

K Umemoto, K Hirose - Earth and Planetary Science Letters, 2020 - Elsevier
We have examined the density and bulk sound velocity of liquid iron alloys,(Fe, Ni) X (H, Si,
O, S, C) 1-X, at Earth's outer core pressure and temperature conditions based on first …

The Fe-FeSi phase diagram at Mercury's core conditions

E Edmund, G Morard, MA Baron, A Rivoldini… - Nature …, 2022 - nature.com
Mercury's metallic core is expected to have formed under highly reducing conditions,
resulting in the presence of significant quantities of silicon alloyed to iron. Here we present …

Earth's carbon deficit caused by early loss through irreversible sublimation

J Li, EA Bergin, GA Blake, FJ Ciesla… - Science …, 2021 - science.org
Carbon is an essential element for life, but its behavior during Earth's accretion is not well
understood. Carbonaceous grains in meteoritic and cometary materials suggest that …

Melting experiments on the Fe–C binary system up to 255 GPa: Constraints on the carbon content in the Earth's core

I Mashino, F Miozzi, K Hirose, G Morard… - Earth and Planetary …, 2019 - Elsevier
Phase relations, including the eutectic liquid composition in the Fe–C binary system, remain
unclear under the core pressure range, which makes estimating the carbon budget in the …