'Deep' Mineralogy (Extraterrestrial Mineralogy, Planetary interiors)
Minerals under dynamic compression - from giant impacts to interiors of super-Earths
Co-Conveners
Yingwei Fei, Carnegie Science, USA
Li Zhang, HPSTAR, China
Laëtitia Allibert, KU Leuven, Belgium
Minerals under dynamic compression provide key insights into material behavior at extreme pressure-temperature conditions relevant to natural impact events and planetary interiors. A range of fast compression techniques, including shock, now enables the investigation of minerals across a broad spectrum of strain rates and timescales. Advances in characterization under dynamic compression, combined with numerical simulations, have significantly improved constraints on material properties under extreme conditions, with applications from giant impacts to the interiors of super-Earths. This session invites contributions on shock-induced phase transformations, deformation, amorphization, melting, and vaporization in minerals, as well as on the formation and preservation of high-pressure polymorphs. Studies integrating experiments, microstructural and spectroscopic analyses, thermodynamic analysis, and atomistic or continuum modeling are particularly encouraged. Emphasis will be placed on linking mineral-scale records produced under dynamic compression to impact-related processes across scales, while highlighting their broader relevance to planetary materials under extreme conditions, including the interior structure of super-Earths.
