Academic Journal
Structural evolution of liquid silicates under conditions in Super-Earth interiors
| العنوان: | Structural evolution of liquid silicates under conditions in Super-Earth interiors |
|---|---|
| المؤلفون: | Morard, Guillaume, Hernandez, Jean-Alexis, Pege, Clara, Nagy, Charlotte, Libon, Lélia, Lacquement, Antoine, Sokaras, Dimosthenis, Lee, Hae Ja, Galtier, Eric, Heimann, Philip, Cunningham, Eric, Glenzer, Siegfried, H, Vinci, Tommaso, Prescher, Clemens, Boccato, Silvia, Chantel, Julien, Merkel, Sébastien, Zhang, Yanyao, Yang, Hong, Wei, Xuehui, Pandolfi, Silvia, Mao, Wendy, L, Gleason, Arianna, E, Shim, Sang Heon, Alonso-Mori, Roberto, Ravasio, Alessandra |
| المساهمون: | Institut des Sciences de la Terre (ISTerre), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Gustave Eiffel-Observatoire des Sciences de l'Univers de Grenoble (Fédération OSUG)-Université Grenoble Alpes (UGA), Institut de minéralogie, de physique des matériaux et de cosmochimie (IMPMC), Muséum national d'Histoire naturelle (MNHN)-Institut de recherche pour le développement IRD : UR206-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), European Synchrotron Radiation Facility Grenoble (ESRF), German Research Centre for Geosciences - Helmholtz-Centre Potsdam (GFZ), Stanford Synchrotron Radiation Lightsource (SSRL SLAC), SLAC National Accelerator Laboratory (SLAC), Stanford University-Stanford University, Stanford University, Linac Coherent Light Source (LCLS), Laboratoire pour l'utilisation des lasers intenses (LULI), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X), Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Albert-Ludwigs-Universität Freiburg = University of Freiburg, Unité Matériaux et Transformations - UMR 8207 (UMET), Centrale Lille-Institut de Chimie - CNRS Chimie (INC-CNRS)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Northernwest Polytechnical University Xi'an (NPU), Nokia Bell Labs, Arizona State University Tempe (ASU), ANR-22-CE49-0006,MIN-DIXI,Diversité minéralogiques dans les intérieurs d'(exo)planètes(2022) |
| المصدر: | ISSN: 2041-1723. |
| بيانات النشر: | HAL CCSD Nature Publishing Group |
| سنة النشر: | 2024 |
| المجموعة: | Université Grenoble Alpes: HAL |
| مصطلحات موضوعية: | [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry |
| الوصف: | International audience ; Molten silicates at depth are crucial for planetary evolution, yet their local structure and physical properties under extreme conditions remain elusive due to experimental challenges. In this study, we utilize in situ X-ray diffraction (XRD) at the Matter in Extreme Conditions (MEC) end-station of the Linear Coherent Linac Source (LCLS) at SLAC National Accelerator Laboratory to investigate liquid silicates. Using an ultrabright X-ray source and a high-power optical laser, we probed the local atomic arrangement of shock-compressed liquid (Mg,Fe)SiO$_3$ with varying Fe content, at pressures from 81(9) to 385(40) GPa. We compared these findings to ab initio molecular dynamics simulations under similar conditions. Results indicate continuous densification of the O-O and Mg-Si networks beyond Earth's interior pressure range, potentially altering melt properties at extreme conditions. This could have significant implications for early planetary evolution, leading to notable differences in differentiation processes between smaller rocky planets, such as Earth and Venus, and super-Earths, which are exoplanets with masses nearly three times that of Earth. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| DOI: | 10.1038/s41467-024-51796-7 |
| الاتاحة: | https://hal.science/hal-04724994 https://hal.science/hal-04724994v1/document https://hal.science/hal-04724994v1/file/Morard_et_al-2024-Nature_Communications.pdf https://doi.org/10.1038/s41467-024-51796-7 |
| Rights: | info:eu-repo/semantics/OpenAccess |
| رقم الانضمام: | edsbas.BBCD9A97 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1038/s41467-024-51796-7 |
|---|