Archives des thèmes (détails)

A new insight into the sheathing of early 19th-century French warships: SEM-EDX and ICP-MS analyses of copper-based samples from the Lion (1809) and Robuste (1809)

Sébastien Berthaut-Clarac, Nicolas C. Ciarlo, Manuel Bethencourt, Christophe Cloquet Journal of Archaeological Science: Reports 74 (2026) 105910 Voir en ligne : https://doi.org/10.1016/j.jasrep.2026.105910 Materials characterisation has largely been applied to the study of modern shipwrecks, providing valuable data for dating, provenance,…

Preservation of water concentration in mantle xenoliths: a case study from Allègre and Ray Pic volcanoes (French Massif Central)

Konstantinos Thomaidis, Jannick Ingrin, Etienne Deloule, Lydéric France, and Huan Chen Eur. J. Mineral., 38, 477–489, 2026 Voir en ligne : https://doi.org/10.5194/ejm-38-477-2026 Water in the form of hydrous point defects in the crystal structure of pyroxenes from mantle xenoliths is…

Magma convection favors ephemeral melt-rich bodies within mushy reservoirs

Jie Chen, Lydéric France & Jean-Arthur Olive Nature Communications, volume 17, Article number: 7957 (2026) Voir en ligne : https://doi.org/10.1038/s41467-026-74815-1 Magma convection is a mechanism that greatly enhances heat transfer from mobilizable, crystal-poor magma bodies to the surrounding immobile, crystal-rich…

A VNIR spectral database of terrestrial magmatic rocks for the interpretation of Martian plagioclase hyperspectral detections

Barthez M., Flahaut J., Guitreau, M., Pik, R., Ito, G., Delangle, C., Gremilliet JP, Luais B, Faure, F. Icarus, Volume 453, 15 July 2026, 117027 Voir en ligne : https://doi.org/10.1016/j.icarus.2026.117027 Visible Near-InfraRed (VNIR) spectroscopy is a powerful tool to assess…

Regolith thickness across the Borealis Planitia region of Mercury

Joulaud M., Allemand P., Flahaut J., Füri E. Planetary and Space Science, Article n°106338, Volume 282, November 2026 Voir en ligne : https://doi.org/10.1016/j.pss.2026.106338 Mercury's surface is covered by regolith produced by meteoritic bombardment, recording the planet's impact and geological history.…

Geology of Atlas crater, the prime landing site of the Emirates Lunar Mission Rashid-1 rover

Flahaut J., Wöhler C., Joulaud M., Füri E., Bhatt M., Breton S., Els S. G., AlMaeeni S., AlMarzooqi H. and the ELM Science Collaboration (2026) Planetary Research, Vol. 1 No. 1, August 2026 Voir en ligne : https://doi.org/10.53480/4e7a-4y94 Located at…

Small Pluton Construction by the Stacking and Differentiation of Magma Sheets: Insights from the Beauvoir Granite (Massif Central, France)

Nicolas Esteves, Lydéric France, Michel Cuney, Pierre Bouilhol Journal of Petrology, Volume 67, Issue 7, July 2026, egag055 Voir en ligne : https://doi.org/10.1093/petrology/egag055 Constraining the links between the assembly of granitic intrusions and their magmatic differentiation processes remains a major…

Reactivation of a transcrustal plumbing system during a rifting event (Asal Rift, Djibouti)

Juliette Pin, Lydéric France, Gilles Chazot, Etienne Deloule, Mohamed Ahmed Daoud, Bernard Le Gall Geology (2026) 54 (4): 348–353. Voir en ligne : https://doi.org/10.1130/G53776.1 Magmatism plays a central role in rift dynamics, yet the structure and evolution of magma plumbing systems…

The importance of considering temperature- and composition-dependent partition coefficients in differentiation models

Toussaint A., France L. Lithos, Volumes 522–523, February 2026, 108395 Voir en ligne : https://doi.org/10.1016/j.lithos.2025.108395 Quantifying the parameters that govern magma differentiation is key to understanding the evolution of igneous systems. We present an approach combining thermodynamic modeling of magma differentiation…

Hidden Early Clinopyroxene Relicts Record Reactive Porous Flow in Oceanic Plutonic Series

Falc'Hun C., France L. Journal of Petrology, 2026, 67, egag004 Voir en ligne : https://doi.org/10.1093/petrology/egag004 Almost two-thirds of the Earth’s magmatic budget is concentrated at mid-ocean ridges, with 85% of this being emplaced as intrusive rocks. In these systems, now understood…