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Read more about the article Oxygen isotope compositions of chondrules in enstatite chondrites: insights from relict olivine, chondrule size and redox state
News-EN / Recent publications / Thème COSMO-EN

Oxygen isotope compositions of chondrules in enstatite chondrites: insights from relict olivine, chondrule size and redox state

Marrocchi Y., Piani L., Thomassin D. & Jacquet E. (2026) Geochimica et Cosmochimica Acta 414, 62-74, 10.1016/j.gca.2025.12.036 Voir en ligne : https://doi.org/10.1016/j.gca.2025.12.036  The recent discovery in ordinary chondrites of a population of small, sub-TFL (i.e., negative Δ17O; TFL = Terrestrial Fractionation…

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7 January 2026
Read more about the article Demantoid garnet deposits: review and geological classification
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Demantoid garnet deposits: review and geological classification

Gaston Giuliani, Isabella Pignatelli, Julien Feneyrol, Anthony E. Fallick, Alfred Andriamamonjy The Canadian Journal of Mineralogy and Petrology (2025) 63 (5): 421–465. Voir en ligne : https://doi.org/10.3749/2500010 The aim of this extended review and update is to present the state-of-the-art on…

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21 November 2025
Read more about the article Origin of the mass-dependent germanium isotopic continuum in the early Solar System
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Origin of the mass-dependent germanium isotopic continuum in the early Solar System

Béatrice Luais, Guillaume Florin Earth and Planetary Science Letters, 672, 119663 Voir en ligne : https://doi.org/10.1016/j.epsl.2025.119663 The warm, reduced, volatile-poor inner Solar System and cold, oxidized, volatile-rich outer Solar System are characterized by neutron-poor and neutron-rich isotopic anomalies, respectively. Nucleosynthetic isotopic…

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14 November 2025
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Bandeau 110 soleil
News-EN / Recent publications / Thème COSMO-EN

Formation conditions and chemical composition of early-condensed olivine in the solar protoplanetary disk

Elian Ochem , Yves Marrocchi Icarus 445, 116859, 10.1016/j.icarus.2025.116859 Voir en ligne : https://doi.org/10.1016/j.icarus.2025.116859 The dynamic evolution of the solar protoplanetary disk led to the formation of the first solar system solids by condensation, among which amoeboid olivine aggregates (AOAs) are…

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23 October 2025
News-EN / Recent publications / Thème MAGMA-EN

The magmatic–hydrothermal transition record in zircon: implications for zircon texture, composition and rare-metal granite dating (Beauvoir granite, French Massif Central)

Nicolas Esteves, Pierre Bouilhol, Urs Schaltegger, Maria Ovtcharova, André Navin Paul, and Lydéric France European Journal of Mineralogy, Volume 37, issue 5, 37, 667–693, 2025 See online : https://doi.org/10.5194/ejm-37-667-2025 Zircon petrochronology is widely used to quantify the age and duration…

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23 October 2025
News-EN / Recent publications / Thème COSMO-EN

Clues for Solar System Formation from Meteorites and Their Parent Bodies

Bernard Marty, Katherine R. Bermingham, Larry R. Nittler, Sean N. Raymond Comets III (K. J. Meech, M. R. Combi, D. Bockelée-Morvan, S. N. Raymond, and M. E. Zolensky, eds.), pp. 681–729 Voir en ligne : https://arxiv.org/abs/2506.02721 Understanding the origin of comets…

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22 September 2025
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News-EN / Recent publications / Thème MAGMA-EN

Characterization of the HIMU Mantle Source from Noble Gas Isotopes in Volcanic Gas Emissions in São Tomé (Cameroon Volcanic Line)

Arno Lastes, David V. Bekaert, Bouchaib Tibari, Alan M. Seltzer, Michael W. Broadley, Peter H. Barry, and Bernard Marty CS Earth and Space Chemistry special issue “Reika Yokochi Memorial” Voir en ligne : https://pubs.acs.org/doi/10.1021/acsearthspacechem.5c00056?ref=pdf The source of volcanism in the Cameroon…

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22 September 2025
News-EN / Recent publications / Thème COSMO-EN

Performance of the 3F4M Noblesse–HR Noble Gas Mass Spectrometer for Multicollection Ne‐Ar‐N2 Analyses

L. Zimmermann , E. Füri , J. Boulliung, and J. M. Saxton Geochemistry, Geophysics, Geosystems - METHOD 10.1029/2025GC012247 Voir en ligne : https://doi.org/10.1029/2025GC012247 The Noblesse–HR noble gas mass spectrometer was designed for multicollection analyses of different sets of noble gas isotopes…

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21 July 2025
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A Rare Yellow Diamond: Reconstruction of the Possible Geological History

Isabella Pignatelli and Cristiano Ferraris Crystals 2025, 15(5), 461 Voir en ligne : https://doi.org/10.3390/cryst15050461 Abstract: In this study, a rare 3.49-carat yellow diamond was analyzed to reconstruct the geological processes that led to its distinctive form. The diamond exhibits growth and…

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6 June 2025
Read more about the article Early Archaean onset of volatile cycling at subduction zones
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Early Archaean onset of volatile cycling at subduction zones

G. Caro, T. Grocolas, P. Bourgeois, P. Bouilhol, S. J. Mojzsis, G. Paris. Nature Geoscience volume 18, pages 436–442 (2025) Voir en ligne : https://doi.org/10.1038/s41561-025-01677-5  Abstract: The subduction of pelagic sediments and altered oceanic crust modulates the global cycle of…

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3 June 2025