The role of hydrogen bonds in hydrous minerals stable at lower mantle pressure conditions

J Tsuchiya, EC Thompson - Progress in Earth and Planetary Science, 2022 - Springer
Over the past few decades, hydrous minerals were thought to be absent in the lower mantle,
due to their instability at high-pressure conditions. Recently, however, hydrous phases …

Infrared spectroscopic monitoring of solid-state processes

N Biliškov - Physical Chemistry Chemical Physics, 2022 - pubs.rsc.org
Infrared spectroscopy, ubiquitous in contemporary chemical laboratories, is frequently
underutilised for just the basic characterisation of products. However, its unique ability to …

Superhydrous aluminous silica phases as major water hosts in high-temperature lower mantle

T Ishii, G Criniti, E Ohtani, N Purevjav… - Proceedings of the …, 2022 - National Acad Sciences
Water transported by subducted oceanic plates changes mineral and rock properties at high
pressures and temperatures, affecting the dynamics and evolution of the Earth's interior …

Structural independence of hydrogen-bond symmetrisation dynamics at extreme pressure conditions

T Meier, F Trybel, S Khandarkhaeva, D Laniel… - Nature …, 2022 - nature.com
The experimental study of hydrogen-bonds and their symmetrization under extreme
conditions is predominantly driven by diffraction methods, despite challenges of localising or …

Mid-mantle water transportation implied by the electrical and seismic properties of ε-FeOOH

Y Zhuang, B Gan, Z Cui, R Tang, R Tao, M Hou… - Science Bulletin, 2022 - Elsevier
Water in the mantle transition zone and the core-mantle boundary plays a key role in Earth's
stratification, volatile cycling, and core formation. If water transportation is actively running …

Phase Relation and Equation of State of Iron‐Titanium Oxyhydroxides With α‐PbO2 Type Crystal Structure at Deep Mantle Conditions

KN Matsukage, Y Nishihara, Y Tange… - Journal of Geophysical …, 2024 - Wiley Online Library
Phase relation and equation of state of iron‐titanium oxyhydroxide with α‐PbO2‐type crystal
structure (hydrous α‐phase) was investigated at pressure from middle upper mantle to …

Anomalous vibrational properties and spin phase diagrams of under extreme conditions

C Zhao, Z Mao, S Anna, X Zhang, Y Yu, L Li, T Xiao… - Physical Review B, 2024 - APS
(Mg, Fe) CO 3 solid solutions not only play a crucial role in carbon storage and transport
within the deep mantle, but also serve as a great case for studying the spin transition …

Influence of temperature on the process of hydrogen bond symmetrization in ɛ-FeOOH

ZS Lei, XW Sun, XX Wang, ZJ Liu, T Song, JH Tian - Physical Review B, 2023 - APS
Investigating hydrogen bond symmetrization in hydroxyl compounds necessitates the
precise determination of crystal microstructures. Nonetheless, H atoms are nearly …

High‐pressure elasticity of δ‐(Al, Fe) OOH single crystals and seismic detectability of hydrous MORB in the shallow lower mantle

N Satta, G Criniti, A Kurnosov… - Geophysical …, 2021 - Wiley Online Library
Abstract Oxyhydroxides like δ‐(Al, Fe) OOH may stabilize “water” in Mid‐Ocean Ridge
Basalt (MORB) subducted into the Earth's lower mantle. The single‐crystal elasticity of δ‐(Al …

Phase diagram and thermoelastic property of iron oxyhydroxide across the spin crossover under extreme conditions

B Gan, G Jiang, Y Huang, H Zhang, Q Hu, Y Zhang - Physical Review B, 2023 - APS
Spin transition and its effect on the physical properties of iron-bearing minerals at high
pressure-temperature (PT) are of great importance for understanding the structural …