Boyet Maud

Maud Boyet

Directeur de Recherche
CNRS
Equipe de géochimie
Thème Terre primitive
Thème Volcanisme et Société
Bureau: 0.56 - LMV Cezeaux
Téléphone: 04.73.34.67.35
Courriel : Maud.Boyet@uca.fr

  • Thèmes de Recherche :

    • Chronologie des processus de formation du système solaire précoce
    • Origine et formation de la Terre
    • Age de formation de la Lune
    • Evolution de la Terre comparée à celle des autres corps planétaires (Mars, Lune et astéroides)
    • Nature, évolution et dynamique du manteau terrestre

    Formation et expérience professionnelle :

    • 2016. Directrice de Recherche, Centre National de la Recherche Scientifique
    • 2014. Habilitation à Diriger des Recherches
    • 2007 – 2016. Chargée de Recherche, Centre National de la Recherche Scientifique
    • 2006 – 2007. ATER à l’université Jean Monnet, Saint-Etienne
    • 2003 – 2005. Post-doctorat au Department of Terrestertial Magmatism, Carnegie Institution, Washington, USA
    • 2002 – 2003. ATER à l’ENS Lyon
    • 1999 – 2003. Thèse en Sciences de la Terre de l’Ecole Normale Supérieure de Lyon
    • 1988 – 1999. DEA Dynamique de la lithosphère, Université Joseph Fourier, Grenoble

    Responsabilités scientifiques et administratives :

    Actuelles

    • Directrice adjointe du Laboratoire Magmas et Volcans depuis 2024
    • Co-responsable de l’axe 2 du PEPR Origins depuis 2023
    • Membre du Conseil d’administration de la Société Française d’Exobiologie depuis 2022
    • Présidente du Programme National de Planétologie (INSU-CNRS) depuis 2022
    • Membre de la commission spécialisée Terre Solide de l’INSU depuis 2021
    • Membre du comité du Prix Houtermans (EAG) depuis 2020
    • Reviewer pour des journaux scientifiques (Nature, Science, GCA, EPSL, Chem. Geol., etc)
    • Reviewer pour des agences de financement nationales et européennes (ANR, NSF, NERC, ERC, etc), et locales (Ville de Paris, DIM ACAV, etc)
    • Membre de l’EAG et la SFIS

    Passées

    • Editrice associée de la Revue Geochemical Perspectives Letters (2019-2022)
    • Membre du conseil du laboratoire (2012-2023)
    • Membre du conseil d’administration de l’EAG (2019-2022)
    • Membre du Comité Scientifique du Labex UnivEarthS (2019-2023)
    • Co-Responsable du thème « Evolution planétaire : structure, composition, dynamique et environnements primitifs » du Programme National de Planétologie (INSU-CNRS) de 2019 à 2022
    • Membre du comité de l’AGU Bowen Award de 2017 à 2021
    • Membre du Comité Scientifique du Labex CLERVOLC de 2015 à 2019
    • Responsable de l’équipe de Géochimie du Laboratoire Magmas et Volcans de 2015 à 2019
    • Responsable du thème « Environnements primitifs » du Programme National de Planétologie (INSU-CNRS) de 2015 à 2019
    • Editrice associée de Geochimica et Cosmochimica Acta de 2012 à 2019
    • Membre du comité d’organisation de l’Atelier ISOTRACE 2017 à Clermont-Ferrand
    • Membre du comité d’organisation de l’EMPG 2016 à Clermont-Ferrand
    • Membre du conseil de l’Ecole Doctorale « Sciences, Ingénierie, Santé » de l’Université de Lyon de 2012 à 2016
    • Membre du comité d’évaluation de l’ANR SIMI6 en 2013.
    • Organisatrice des séminaires du laboratoire Magmas et Volcans de 2008 à 2011
    • Responsable de l’axe transverse « Terre Primitive » du Laboratoire Magmas et Volcans de 2011 à 2015
    • Co-Responsable de Thèmes pour les Goldschmidt 2014 et 2017
    • Co-organisatrice de sessions dans des conférences internationales : Goldschmidt 2007, 2010, 2012, 2013, 2014, 2017 ; EGU 2012 ; AGU 2015

    Prix et Dictinctions :

    • Geochemisry Fellow EAG-GS (2022)
    • Prix Georges Millot de la Société Géologique de France (2021)
    • AGU Daily Lecture (2020)
    • Médaille de Bronze du CNRS (2013)
    • Houtermans Award of the European Association of Geochemistry (2011)
    • Prix Etienne Roth de l’Académie des Sciences (2008)
    • Outstanding Young Scientist Award of the European Geosciences Union (2008)
    • Prix Trophées de la Loire (2006)
    • Article « 142Nd evidence for Early (>4.53 Billion Year) Global Differentiation of the Silicate Earth », Boyet M. et Carlson R., classé 6ème découverte de l’année 2005 (Science vol. 309, 1882-1883).

    Encadrements :

    • Post-docs : Pallabi Basu (2022-), Pierre Bonnand (2016-2020), Zoltan Konc (2013-2014), Jonathan O’Neil (2011-2012), Mouhcine Gannoun (2008-2010).
    • Thèses : Théo Biget (2021-2024), Steve Kitoga (2021-2024), Lukas Nicol (2021-), Paul Frossard (2017-2021), Claudine Israel (2017-2021), Pierre Faure (2016-2019), Nina Bellot (2012-2015), Camille Cartier (2011-2014), Hanika Rizo (2009-2012).

    Participation à des comités  de Thèse et HDR :

    • 2024. Examinatrice de la Thèse de Linru Fang (LMV, Université Paris-Cité)
    • 2024. Examinatrice de l’HDR de Julien Monteux (Université Clermont Auvergne)
    • 2023. Rapporteur de l’HDR de Pierre Sans-Joffre  (Museum National d’Histoire Naturelle)
    • 2023. Rapporteuse de la Thèse de Maxime Piralla (Université de Lorraine, France)
    • 2022. Rapporteuse de la Thèse de Doctorat d’Igor Rzeplinski (Sorbonne Université)
    • 2022. Examinatrice de l’HDR d’Anne Trinquier (Université de Bretagne Occidentale)
    • 2021. Examinatrice et Présidente du jury de la Thèse de Doctorat de Luca Terray (Université Clermont Auvergne,)
    • 2020. Rapporteuse de la Thèse de Doctorat d’Allessandro Maltese (University of Bern, Switzerland)
    • 2020. Rapporteuse de la Thèse de DoctoratPhD Laetitia Allibert (IPGP, Université Sorbonne Paris Cité)
    • 2018. Rapporteuse de la Thèse de Doctorat d’Austin Jarl Boyd (MNHD, University of Copenhagen)
    • 2018. Rapporteuse de l’HDR de Christophe Thomazo (Biogéosciences, Université Bourgogne Franche-Comté)
    • 2018. Membre du comité de suivi de Thèse de Nadège Fetter (ENS Lyon)
    • 2017. Examinatrice et Présidente du jury de la Thèse de Doctorat de Maximilien Verdier-Paoletti (MNHM-IMPMC).
    • 2017. Examinatrice du Devis de Recherche de Laura Bouvier (GEOTOP, Montréal)
    • 2017. Examinatrice et Présidente du jury de la Thèse de Doctorat de Mélodie-Neige Cornu (LMV)
    • 2016. Rapporteuse de la Thèse de Doctorat d’Emily Pringle (IPGP)
    • 2016. Rapporteuse de la Thèse de Doctorat d’Ingrid Blanchard (IPGP)
    • 2016. Rapporteuse de l’HDR d’Yves Marrochi (CRPG Nancy)
    • 2012. Rapporteuse de la Thèse d’Emmanuelle Albalat (ENS Lyon)

    Séminaires et présentations invitées :

    • 2023. Virtual Seminar for Precambrian Geology
    • 2021. Ecole Nationale d’Exobiologie, Marseille, France
    • 2021. Workshop Collège de France, Paris, France
    • 2021. Museum für Naturkunde, Berlin, Germany
    • 2019. Institut de Physique du Globe de Paris, France
    • 2019. Le Temps des Sciences de l’Univers, Académie des Science
    • 2019. Workshop “The Evolving Earth”, Paris, France
    • 2018. Workshop “Reading Terrestrial Planet Evolution in Isotopes and Element Measurements”, ISSI, Bern, Switzerland
    • 2018. ENS Paris, France
    • 2018. Royal Society meeting “Earth dynamics and the development of plate tectonics”, London, UK
    • 2017. MPMC, MNHN
    • 2017. Keynote Goldschmidt Paris, France.
    • 2016. Workshop “Before the Moon”, Tokyo, Japan
    • 2014. Montpellier, France.
    • 2012. Laboratoire de Géodynamique des Chaînes Alpines, Grenoble, France.
    • 2012. Institut de Physique du Globe de Paris, France.
    • 2012. Laboratoire de Géodynamique des Chaînes Alpines, Grenoble, France.
    • 2009. Steinmann Institut fur Geologie, Mineralogie, Palaontologie, Bonn, Germany.
    • 2007. Ecole de Physique “géodynamique interne”, Les Houches, France.
    • 2007. Bayerisches Geoinstitut, Bayreuth, Germany.
    • 2007. Institut de Physique du Globe de Paris, France.
    • 2006. Laboratoire Magmas et Volcans, Université de Clermont-Ferrand, France.
    • 2006. Université de Saint-Etienne, France.
    • 2006. Laboratoire de Sciences de la Terre, Ecole Normale Supérieure de Lyon, France.
    • 2006. Observatoire Midi-Pyrénées, Toulouse, France

    Communication grand public :

    • 2024. Les météorites, Planétarium de Saint-Etienne
    • 2022. Les météorites, Bourse aux minéraux de Clermont-Ferrand
    • 2022. Académie des Sciences, Belles-Lettres et Arts de Clermont-Ferrand
    • 2019. Le Temps des Sciences de l’Univers, Académie des Science
    • 2019. Participation au volume hors-série de Ciel et Espace (avril/juin 2019) «Le Nouveau Roman de la Terre».
    • 2018. Conférence pour l’Association des Astronomes Amateurs d’Auvergne «La formation du Système Terre-Lune».
    • 2018. Ecole primaire Jean Zay à Beaumont (CM2) « Les échantillons extra-terrestes ».
    • 2018. Participation à la fête de la Science.
    • 2017. Terre et Lune : sœurs ou cousines ? La Recherche Hors série n°23 « Spécial planètes », p 53-57.
    • 2015.  Rencontre des médiateurs scientifiques de la cité des Sciences pour le montage d’une exposition sur la Lune en janvier 2015.
    • 2014.  Comment s’est formé la Lune. Article La Recherche, 2014, N°492, 41-44.
    • 2014. Séminaire dans le cadre de l’Université Ouverte thème : de l’infiniment grand à l’infiniment petit, Université Blaise Pascal, Clermont Ferrand.
    • 2012. Article de vulgarisation dans « La Science au présent ».
    • 2012. Conférence grand public intitulée « De la Terre à la Lune : formation et évolution précoce » donnée dans le cadre des mercredis de la Science à l’Université Blaise Pascal.
    • 2011. Participation à l’émission scientifique « la tête au carré » sur France Inter (29/08/2011).
    • 2011. Reportage pour France 3 auvergne
    • 2009. Participation à la journée de la recherche organisée par l’Ecole Doctorale Sciences Ingénierie Santé de Saint-Etienne: « Témoignage sur le thème : Pourquoi faire un post-doc ? ».
    • 2008. Participation à la Journée nationale des nouveaux entrants CNRS : « Témoignage sur la direction d’un projet ERC ».
    • 2019. Workshop “The Evolving Earth”, Paris, France
    • 2018. Workshop “Reading Terrestrial Planet Evolution in Isotopes and Element Measurements”, ISSI, Bern, Switzerland

  • Publications LMV depuis 2010 :

    Articles scientifiques

    70 publication(s) | Article scientifique au 17/06/2026

    • Patry L.A., Bonnand P. , Boyet M. , Afroz M., Wilmeth D.T., Ramsay B., Nonnotte P., Homann M., Sansjofre P., Fralick P., Lalonde S.V. (2025) . Dating the evolution of oxygenic photosynthesis using la ce geochronology. NATURE (Nature) .
    • Marrocchi Y., Hammouda T. , Boyet M. , Avice G., Morbidelli A. (2025) . Porphyritic olivine chondrules with enstatite chondrite isotopic composition as a main building block of earth. EPSL (Earth and Planetary Science Letters) . vol.659, p.119337, DOI

    • Biget T. , Bruand E. , Pereira I. , Boyet M. , Gasser D., Stüwe K., Langone A. (2024) . The chemical and sm–nd isotopic behaviour of accessory minerals in metasediments along the lp ht chugach metamorphic complex (alaska). CONTMP (Contributions to Mineralogy & Petrology) . vol.179, DOI
    • Kitoga L.S., Zakharov D., Marin-Carbonne J. , Boyet M. , Moyen J.F. , Di Rocco T., Pack A., Olivier N. , Stevens G. (2024) . Oxygen and silicon isotopic compositions of archean silicified lava and cherts of the onverwacht group: implication for seafloor hydrothermalism and the nature of recycled components in the source of. CHEMGEO (Chemical Geology) . DOI
    • Quemet A., Lasnier G., Mialle S., Isnard H., Boyet M. , Garçon M. , Auclair D. (2024) . Reference value of the jndi 1 isotopic material without normalization. JAAS (Journal of Analytical Atomic Spectrometry) . DOI
    • Engels T. , Monteux J. , Boyet M. , Bouhifd A. (2024) . Large impacts and their contribution to the water budget of the early moon. ICARUS (Icarus) . DOI
    • Hammouda T. , Frossard P. , Boyet M. , Bouvier A., Newville M., Lanzirotti A. (2024) . Mapping the redox state of the young solar system using ytterbium valence state. GCA (Geochimica et Cosmochimica Acta) . DOI
    • Frossard P. , Bonnand P. , Boyet M. , Bouvier A. (2024) . Role of redox conditions and thermal metamorphism in the preservation of cr isotopic anomalies in components of non carbonaceous chondrites. GCA (Geochimica et Cosmochimica Acta) . vol.367, p.167-178, DOI

    • Bonnand P. , Boyet M. , Bosq C. (2023) . Stable cerium isotopes as a tracer of oxidation reactions. GEOCHMICALPERS (Geochemical Perspectives Letters) . vol.28, p.27-30, DOI
    • Weiss D., Harpp K.S., Harrison L.N., Boyet M. , Chauvel C., Farnetani C.G., Finlayson V.A., Lee K.K.M., Parai R., Shahar A., Williamson N.M.B. (2023) . Earth’s mantle composition revealed by mantle plumes. NATUREREVIE (Nature Reviews Earth & Environment) . vol.4, p.604-625, DOI
    • Petersson A., Kemp A.I.S., Boyet M. , Whitehouse M.J., Boyce M., Roberts M., Kennedy A. (2023) . Response of sm–nd isotope systematics to complex thermal histories: a case study from 3.58 ga gneisses of the pilbara craton. EPSL (Earth and Planetary Science Letters) . vol.620, p.118346, DOI
    • Israel C. , Boyet M. , Doucelance R. , Bonnand P. , Dhuime B., Ionov D. , Moreira H., Jackson M.G., Golovin A.V. (2023) . First ce nd isotope measurements of middle and lower continental crust samples support massive lower crust recycling over earth's history. LITHOS (Lithos) . vol.460-461, p.107369, DOI
    • Nicol L. , Garçon M. , Boyet M. , Gannoun A.M. (2023) . High precision measurement of europium isotopic composition of geological reference materials by multicollector inductively coupled plasma mass spectrometry (mc icp ms). JAAS (Journal of Analytical Atomic Spectrometry) . DOI

    • Fang L., Frossard P. , Boyet M. , Moynier F. (2022) . Half life and initial solar system abundance of 146sm determined from the oldest andesitic meteorite. PNAS (Proceedings of the National Academy of Sciences) . vol.119, p.e2120933119, DOI
    • Frossard P. , Israel C. , Bouvier A., Boyet M. (2022) . Earth’s composition was modified by collisional erosion. SCIENCES (Science) . vol.377, p.1529-1532, DOI
    • Savage P., Moynier F., Boyet M. (2022) . Zinc isotope anomalies in primitive meteorites identify the outer solar system as an important source of earth's volatile inventory. ICARUS (Icarus) . vol.386, p.115172, DOI
    • Sauzéat L. , Eychenne J. , Gurioli L. , Boyet M. , Jessop D. , Moretti R., Monrose M., Holota H., Beaudoin C., Volle D.H. (2022) . Metallome deregulation and health related impacts due to long term exposure to recent volcanic ash deposits: new chemical and isotopic insights. SCIENCE ENV (Science of the Total Environment) . p.154383, DOI
    • Saitoh M. , Olivier N. , Garçon M. , Boyet M. , Thomazo C., Alleon J., Moyen J.F. , Motto-Ros, Marin-Carbonne J. (2022) . Reply to comment on “metamorphic origin of anastomosing and wavy laminas overprinting putative microbial deposits from the 3.22 ga moodies group (barberton greenstone belt)”. PRECR (Precambrian Research) . vol.373, DOI
    • Hammouda T. , Boyet M. , Frossard P. , Cartier C. (2022) . The message of oldhamites from enstatite chondrites. PEPS (Progress in Earth and Planetary Science) . vol.9, DOI

    • Boyet M. , Garçon M. , Arndt N., Carlson R.W., Konc Z. (2021) . Residual liquid from deep magma ocean crystallization in the source of komatiites from the icdp drill core in the barberton greenstone belt. GCA (Geochimica et Cosmochimica Acta) . vol.304, p.141-159, DOI
    • Saitoh M. , Olivier N. , Garçon M. , Boyet M. , Thomazo Ch., Alleon J., Moyen J.F. , Motto-Ros V., Marin-Carbonne J. (2021) . Metamorphic origin of anastomosing and wavy laminas overprinting putative microbial deposits from the 3.22 ga moodies group (barberton greenstone belt). PRECR (Precambrian Research) . vol.362, p.106306, DOI
    • Frossard P. , Guo Z., Spencer M., Boyet M. , Bouvier A. (2021) . Evidence from achondrites for a temporal change in nd nucleosynthetic anomalies within the first 1.5 million years of the inner solar system formation. EPSL (Earth and Planetary Science Letters) . vol.566, p.116968, DOI
    • Faure P. , Boyet M. , Bouhifd A. , Manthilake G. , Hammouda T. , Devidal J.L. (2021) . Determination of the refractory enrichment factor of the bulk silicate earth from metal silicate experiments on rare earth elements. EPSL (Earth and Planetary Science Letters) . vol.554, p.116644, DOI



    • Bellot N. , Boyet M. , Doucelance R. , Bonnand P. , Savov I.P., Plank T., Elliott T. (2018) . Origin of negative cerium anomalies in subduction related volcanic samples: constraints from ce and nd isotopes. CHEMGEO (Chemical Geology) . vol.500, p.46-63, DOI
    • Boyet M. , Bouvier A., Frossard P. , Hammouda T. , Garçon M., Gannoun A.M. (2018) . Enstatite chondrites el3 as building blocks for the earth: the debate over the 146sm–142nd systematics. EPSL (Earth and Planetary Science Letters) . vol.488, p.68-78, DOI
    • Schneider K.P., Hoffmann J.E., Boyet M. , Münker C., Kröner A. (2018) . Coexistence of enriched and modern like 142nd signatures in archean igneous rocks of the eastern kaapvaal craton, southern africa. EPSL (Earth and Planetary Science Letters) . vol.487, p.54-66, DOI
    • Garçon M. , Boyet M. , Carlson R.W., Horan M.F., Auclair D. , Mock T.D. (2018) . Factors influencing the precision and accuracy of nd isotope measurements by thermal ionization mass spectrometry. CHEMGEO (Chemical Geology) . vol.476, p.493-514, DOI


    • Rizo H. , Walker R.J., Carlson R.W., Touboul M., Horan M.F., Puchtel I.S., Boyet M. , Rosing M.T. (2016) . Early earth differentiation investigated through 142nd, 182w, and highly siderophile element abundances in samples from isua, greenland. GCA (Geochimica et Cosmochimica Acta) . vol.175, p.319-336, DOI
    • Bouvier A., Boyet M. (2016) . Primitive solar system materials and the earth share common initial 142nd abundance. NATURE (Nature) . vol.537, p.399-402, DOI
    • O'Neil J., Rizo A., Boyet M. , Carlson R.W., Rosing M.T. (2016) . Geochemistry and nd isotopic characteristics of earth's hadean mantle and primitive crust. EPSL (Earth and Planetary Science Letters) . vol.442, p.194-205, DOI



    • Rizo A., Boyet M. , Blichert-Toft J., Rosing M.T. (2013) . Early mantle dynamics inferred from 142nd variations in archean rocks from southwest greenland: earth and planetary science letters, v. 377 378, p. 324 335,. DOI
    • OʼNeil J., Boyet M. , Carlson R.W., Paquette J.L. (2013) . Half a billion years of reworking of hadean mafic crust to produce the nuvvuagittuq eoarchean felsic crust: earth and planetary science letters, v. 379, p. 13 25,. DOI
    • Moiroud M., Pucéat E., Donnadieu Y., Bayon G., Moriya K., Deconinck J.F., Boyet M. (2013) . Evolution of the neodymium isotopic signature of neritic seawater on a northwestern pacific margin: new constrains on possible end members for the composition of deep water masses in the late cretaceo. DOI
    • Boyet M. , Gannoun A.M. (2013) . Nucleosynthetic nd isotope anomalies in primitive enstatite chondrites: geochimica et cosmochimica acta, v. 121, p. 652 666,. DOI

    • Boyet M. (2012) . La lune, un satellite de la terre les missions passées et futures. les cahiers du règne minéral les météorites 1/ des météorites différenciées aux planètes, 49 52..
    • Rizo H., Boyet M. , Blichert-Toft J., O'Neil J., Rosing M.T., Paquette J.L. (2012) . The elusive hadean enriched reservoir revealed by 142nd deficits in isua archean rocks. nature 491, 96 100,. DOI

    • Rizo H., Boyet M. , Blichert-Toft J., Rosing M. (2011) . Combined nd and hf isotope evidence for deep seated source of isua lavas: earth and planetary science letters, v. 312, p. 267 279,. DOI
    • Gannoun A.M. , Boyet M. , Rizo H., El Goresy A. (2011) . 146sm 142nd systematics measured in enstatite chondrites reveals a heterogeneous distribution of 142nd in the solar nebula: pnas, p. 1 5,. DOI
    • Gannoun A.M. , Boyet M. , El Goresy A., Devouard B. (2011) . Ree and actinide microdistribution in sahara 97072 and alha77295 eh3 chondrites: a combined cosmochemical and petrologic investigation: geochimica et cosmochimica acta, v. 75, p. 3269 3289,. DOI
    • Borg L.E., Connelly J.N., Boyet M. , Carlson R.W. (2011) . Chronological evidence that the moon is either young or did not have a global magma ocean: nature, 477, 70 72,. DOI

    • Moynier F., Yin Q.Z., Irisawa K., Boyet M. , Jacobsen B., Rosing M. (2010) . A coupled 182w 142nd constraint for early earth differentiation. proc. nat. acad. sci. 107, 10810 10814,. DOI
    • Boyet M. , Carlson R.W., Horan M. (2010) . Old sm nd ages for cumulate eucrites and redetermination of the solar system initial 146sm/144sm ratio, earth and planetary science letters, 291, 172 181,. DOI

    Congrès :

    122 publication(s) | congrès au 17/06/2026
    • Biget T. , Bruand E. , Langone A., Boyet M. , Caggianelli A. (2025) . New insights into crustal differentiation using whole rock and in situ sm nd isotopes along the serre crustal section (calabria, southern italy). DOI

    • Duprat J., Viennet J.-C., Roskosz M., Morand M., Boccato S., Amand L., Garino Y., Doisneau B., Pont S., Verdier-Paoletti M., Bernard S., Beyssac O., Gounelle M., Aléon J., Sans-Jofre P., Zanda B., Avice G., Girault F., Moynier F., Brunetto R., Pilorget C., Poulet F., Engrand C., Delauche L., Dartois E., Gattacceca J., Maurel C., Piani L., Marrocchi Y., Barucci M.A., Bonal L., Beck P., Lemelle L., Simionovici A., Libourel G., Mangold N., Rosenblatt P., Meslin P.-Y., Quitté G., Maurice S., Cousin A., Sabot B., Chacartegui Rojo I., Pierre S., Boyet M. (2024) . The cnme project, a national curation center for extraterrestrial samples in france.

    • Biget T. , Bruand E. , Pereira I. , Boyet M. , Gasser D., Stüwe K. (2023) . Trace elements behaviour and nd isotopic ratios in ree bearing accessory minerals along a metamorphic gradient: new insights from the chugach metamorphic complex (alaska). DOI
    • Basu P. , Garçon M. , Boyet M. , Bekker A. (2023) . Stable ce isotopic composition of the ca. 2.4 ga hotazel formation, south africa: a deep water oxygenation in the marine basin at the early stage of the great oxidation episode. DOI
    • Boyet M. , Doucelance R. , Seghi, Julien, Auclair D. , Williamson N.M.B., Weis D. (2023) . Deep mantle chemical heterogeneities: new insight from the measurement of the 138la 138ce and 146,147sm 142,143nd systematics in hawaiian basalts. DOI
    • Kitoga S., Marin Carbonne J., Boyet M. , Moyen J.F. , Stevens G., Zakharov D. (2023) . Characterisation of post burial alterations in archean seafloorderived lava and cherts: implicationsfor the primitive terrestrial environments.


    • Israel C. , Boyet M. , Doucelance R. , Bonnand P. , Dhuime B., Ionov D., Jackson M. (2021) . Ce nd isotopic composition of the continental crust: first data on middle and lower crustal rocks. p.7240, DOI
    • Doucelance R. , Israel C. , Boyet M. , Bonnand P. , Jackson M., Barling J. (2021) . A ce nd hf isotope perspective on the emi emii end member. p.7289, DOI
    • Boyet M. , Garçon M. , Arndt N., Carlson R.W., Konc Z. (2021) . Residual liquid from deep magma ocean crystallization in the source of komatiites from the icdp drill core in the barberton greenstone belt.
    • Frossard P. , Guo Z., Spencer M., Boyet M. , Bouvier A. (2021) . Evidence from achondrites for a temporal change in nd nucleosynthetic anomalies within the first 1.5 million years of the inner solar system formation.
    • Doucelance R. , Israel C. , Boyet M. , Bonnand P. , Dhuime B., Ionov D., Jackson M.G. (2021) . A ce nd hf isotope perspective on the emi emii end member distinction.
    • Sauzéat L. , Volle D., Beaudoin C., Boyet M. (2021) . Volcanic ash and health: new chemical and isotopic approach.
    • Bonnand P. , Bruand E. , Matzen A.K., Jerram M., Wood B.J., Boyet M. , Halliday A.N. (2021) . Redox control on chromium isotope behaviour in silicate melts.
    • Boyet M. (2021) . Evolution précoce de la terre silicatée : apport des radioactivités éteintes.
    • Boyet M. (2021) . The terrestrial magma ocean : geochemical constraints.
    • Boyet M. (2021) . The nature of chemical heterogeneities preserved in the deep mantle seen from geochemistry.






    • Rizo H. , Walker R.J., Carlson R.W., Touboul M., Horan M., Puchtel I.S., Boyet M. , Rosing M. (2015) . Early differentiation processes recorded by 142nd and 182w in eoarchean rocks from isua.
    • Ebel D.S., Boyet M. , Hammouda T. , Gannoun A.M. , Weisber M.K., El Goresy A. (2015) . Complementary rare earth element abundances in enstatite and oldhamite in eh3 chondrites.
    • El Goresy A., Lin Y., Miyahara M., Gannoun A.M. , Boyet M. , Ohtani E., Trieloff M. (2015) . Evidence for change in c/o ratio during evolution of enstatite chondrites.
    • Savage P.S., Moynier F., Boyet M. (2015) . Zinc isotope anomalies in bulk chondrites.
    • O'neil J. , Rizo H. , Boyet M. , Carlson R.W. (2015) . Geochemistry and nd isotopic characteristics of earth’s primitive crust and hadean mantle.
    • Lai Y.-J., Schönbächler M., Boyet M. (2015) . Constraints from the 92nb 92zr chronometer on the timing of early terrestrial silicate differentiation.
    • Bouvier A. , Boyet M. (2015) . Sm and nd isotopes in cais.
    • Simionovici A. S., David G., Lemelle L., Boyet M. , Gillet P., Rivard C., El Goresy A. (2015) . Dual energy nano xrf quantification in el 3 fragments of the almahata sitta tc3 asteroid.
    • Boyet M. , Bouvier A. , Gannoun A.M. , Carlson R.W. (2015) . Causes of 142nd variation in earth (invited talk).
    • Boyet M. , Bellot N. , Doucelance R. , Pin C. , Chauvel C., Savov I., Plank T., Elliott T. (2015) . Application of the 138la 138ce systematics as tracer of recycled sediment in the mantle..
    • Boyet M. (2015) . Mesures des isotopes du cérium.
    • Boyet M. (2015) . La ce systematics: new developments, first results.
    • Bellot N. , Boyet M. , Doucelance R. , Pin C. , Savov, Plank, Elliott (2015) . Cerium isotope systematics in the mariana arc basin system.

    • Boyet M. , Carlson R.W., Borg L.E., Horan M. (2014) . Sm nd systematics of lunar ferroan anorthosite: constraints on moon formation and its early evolution.
    • Konc Z., Boyet M. , Scherer E.E., Sprung P., Mezger K., Bleeker W. (2014) . 142nd/144nd variation in acasta gneiss complex (slave craton, canada).
    • Lai Y.J., Schönbächler M., Akram W., Iizuka T., Boyet M. (2014) . The timing of early planetary silicate differentiation based on the nb zr chronometer.
    • Savage P.S., Boyet M. , Moynier F. (2014) . Zinc isotope anomalies in bulk chondrites.
    • Simionovici A.S., Lemelle L., Boyet M. , Gillet P., Rivard C., El Goresy A. (2014) . Nano xrf study of earliest solar condensates in el 3 fragments from the almahata sitta tc3 atseroid.
    • Rizo H. , Walker R.J., Carlson R.W., Touboul, M., Horan M., Puchtel I.S., Boyet M. , Rosing M. (2014) . Reconciling 182w/184w variability in the archean mantle with partition coefficients for metal silicate differentiation.
    • Rizo H. , Walker R.J., Carlson R.W., Touboul, M., Horan M., Puchtel I.S., Boyet M. , Rosing M. (2014) . Early differentiation processes recorder by 142nd and 182w in eoarchean rocks from isua.
    • Cartier C. , Hammouda T. , Boyet M. , Bouhifd A. , Devidal J.L. (2014) . Redox control on nb/ta fractionation: new constrains on the earth moon system. goldschmidt conference, sacramento 8 13 juin 2014, abstract n° 350..
    • Bellot N. , Boyet M. , Doucelance R. , Pin C. , Chauvel C., Plank T., Elliott T. (2014) . Comparison of ce isotopes in two oceanic arc systems: lesser antilles and mariana. goldschmidt conference, sacramento..

    • Bouvier A. , Boyet M. , Jourdan F. (2013) . On the mysterious 176hf excess.
    • Doucelance R. , Bellot N. , Boyet M. , Hammouda T. (2013) . Cerium isotope systematics of oceanic carbonatites. in goldschmidt, florence..
    • Cartier C. , Hammouda T. , Bouhifd A. , Boyet M. , Devidal J.L. (2013) . Nb/ta decoupling under low fo2. in goldschmidt, florence..
    • Valdes M., Moreira M., Boyet M. , Moynier F. (2013) . Mc icp ms measurement of ca isotope ratios in meteoritic and terrestrial materials. in agu fall meeting, san francisco..
    • Rizo H., Touboul M., Carlson R.W., Boyet M. , Walker R.J. (2013) . Early mantle composition and evolution inferred from 142nd and 182w variation in isua samples. in goldschmidt, florence..
    • Rizo H., Touboul M., Carlson R., Boyet M. , Putchel I.S., Walker R.J., Rosing P.T., Horan M. (2013) . Early mantle composition and evolution inferred from 142nd and 182w variations in isua samples. in agu fall meeting, san francisco..
    • O’Neil J., Carlson R., Boyet M. (2013) . Building early archean cratons from recycled hadean crust. in agu fall meeting, san francisco..
    • Hammouda T. , Boyet M. , Moine B. , Cartier C. , Devidal J.L. (2013) . Major melting on enstatite chondrite parent body. in goldschmidt, florence..
    • Carlson R.W., Borg L., Gaffney A., Boyet M. (2013) . Rb sr, sm nd and lu hf isotope systematics of norite 77215: refining the age and duration of lunar crust formation. in 44th lunar planet. sci. conf., the woodlands, texas, usa..
    • Carlson R., Boyet M. , Jackson M., O’Neil J., Rizo H. (2013) . Chemical differentiation of earth before and after earth formation. in agu fall meeting, san francisco..
    • Carlson R., Borg L., Gaffney A., Boyet M. (2013) . Age of the lunar crust: implications for the time of moon formation. in workshop “origin of the moon”, london..
    • Boyet M. , Bouvier A., Gannoun A.M. , Carlson R. (2013) . What are the 146sm 142nd reference parameters for the earth? in goldschmidt, florence..
    • Bouvier A., Boyet M. (2013) . Lu hf and sm nd systematics in the earliest solids of the solar system. in goldschmidt, florence..
    • Bellot N. , Boyet M. , Pin C. , Chauvel C., Doucelance R. , Auclair D. (2013) . Development of the la ce systematics: application to arc magmas. in goldschmidt, florence..
    • O’Neil J., Carlson R.W., Boyet M. (2013) . Earth’s hadean crust: insights from the nuvvuagittuq greenstone belt. in goldschmidt, florence..
    • Carlson R., O’Neil J., Boyet M. (2013) . The use of extinct radionuclides for precise chronology of planet formation. in gsa annual meeting, denver colorado, usa..

    • Rizo H., Boyet M. , Blichert-Toft J., Rosing M., Paquette J.L. (2012) . Variation in 142nd/144nd of archean rocks from southwest greenland: implications for early earth mantle dynamics. egu, vienna..
    • Rizo H., Boyet M. , Blichert-Toft J., Rosing M., Paquette J.L. (2012) . Early mantle dynamics inferred from 142nd variations in archean rocks from southwest greenland. goldschmidt, montreal..
    • O’Neil J., Boyet M. , Rizo H., Carlson R.W., Rosing M. (2012) . Geochemical and isotopic characteristics of earth’s early mafic crust: a comparison between nuvvuagittuq and isua greenstone belt meta volcanics. goldschmidt, montreal..
    • Hammouda T. , Cartier C. , Boyet M. , Moine B. , Devidal J.L. (2012) . The role of sulfides on high field strength element budget during enstatite chondrite melting. 22nd goldschmidt conference, montréal, 24 29 juin 2012..
    • Feng L., El Goresy A., Zhang J., Hao J., Boyet M. , Lin Y. (2012) . Excess 36s in lawrencite and nitrogen isotopic compositions of sinoite from almahata sitta ms 17 el3 chondrite fragment. 43rd lunar planet. sci. conf., the woodlands, texas, usa. lpsc.
    • Boyet M. , Gannoun A.M. (2012) . Nucleosynthetic nd isotope anomalies in primitive enstatite chondrites. goldschmidt, montreal..
    • Bouhifd A. , Boyet M. , Andrault D. , Bolfan-Casanova N. , Devidal J.L. (2012) . No ree into the earth’s core. goldschmidt, montreal..
    • Cartier C. , Hammouda T. , Boyet M. , Devidal J.L. , Moine B. (2012) . Ree and hfse behavior during the early differentiation of the earth under low oxygen fugacity. xii empg, kiel, 4 7 mars 2012..
    • Boyet M. , Carlson R., Borg L., Connelly J., Horan M. (2012) . Early differentiation of the silicate earth : new constraints from isotopic investigation of rocks from the lunar highlands. egu, vienna..
    • O’Neil J., Boyet M. , Carlson R.W., Paquette J.L. (2012) . A billion years of crustal evolution recorded in the nuvvuagittuq greenstone belt: pb hf evidence for eoarchean ttgs produced from melting of hadean mafic crust. agu san francico (invited talk)..
    • Carlson R.W., Boyet M. , Qin L., Jackson M., O’Neil J. (2012) . Early earth differentiation: before and after earth formation. goldschmidt, montreal (invited talk)..

    • Lin Y., El Goresy A., Boyet M. , Feng L., Zhang J., Hao J. (2011) . Earliest solid condensates consisting of the assemblage oldhamite, sinoite, graphite and excess 36s in lawrencite from almahata sitta ms 17 el3 chondrite fragment: workshop on formation of the first s.
    • El Goresy A., Boyet M. , Miyahara M., Lin Y., Feng L. (2011) . Almahata sitta ct3 asteroid ms 17, el 3 chondrite fragment: contrasting oldhamite bearing assemblages in chondrules and metal clasts and significant el ree patterns in oldhamite..
    • Boyet M. , El Goresy A., Miyahara M., Gannoun A.M. (2011) . A new meteorite type: forsterite chondrite with eh 3 affinity: sahara 97158: 74th annual meeting of the meteoritical society, greenwich..
    • Bénard A., Olivier T., Moine B. , Doucet L.S., Ionov D.A., Boyet M. (2011) . Laser induced photo luminescence spectroscopies: probes for sulfide crystal chemistry: goldschmidt, prague, czech republic..
    • Bouvier A., Boyet M. , Vervoort J.D., Patchett P.J. (2011) . The initial hf isotopic composition of the solar system and the earth: agu san francisco.
    • Borg L.E., Connelly J., Boyet M. , Carlson R.W. (2011) . The age of lunar ferroan anorthosite 60025 with implications for the interpretation of lunar chronology and the magma ocean model: 42nd lunar planet. sci. conf. the woodlands, texas, usa..

    Publications antérieures :

    14. Carlson R.W. and Boyet M., 2009. Short-lived radionuclides as monitors of early crust-mantle differentiation on the terrestrial planets. Earth Planet. Sci. Lett. Frontiers, 279, 147-156.

    13. Carlson R.W and Boyet M., 2008. Composition of the Earth’s interior: the importance of early events. Phil. Trans. R. Soc. A, 366, 4077-4103.

    12.  Boyet M. and Carlson R.W, 2007. A highly depleted Moon or a non-magma ocean origin for the lunar crust? Earth Planet. Sci. Lett., 202, 505-516.

    11. Carlson R.W., Boyet M. and M. Horan, 2007, Chondrite barium, neodymium, and samarium isotopic heterogeneity and Early Earth Differentiation, Science, 316, 1175-1178.

    10. Boyet M. and Carlson R.W., 2006, A new geochemical model for the Earth’s mantle inferred from 146Sm-142Nd systematics. Earth Planet. Sci. Letters, 250, 254-268.

    9. Olivier N. and Boyet M., 2006, Rare earth and trace elements of microbialites in Upper Jurrasic coral- and sponge-microbialite reefs. Chem. Geol, 230, 105-123.

    8. Boyet M. and Carlson R.W., 2005, 142Nd Evidence for Early (>4.53 Ga) Global Differentiation of the Silicate Earth. Science, 309, 576-581.

    7. Frey F.A., Huang S., Blichert-Toft J., Regelous M. and Boyet M., 2005, Origin of depleted components in basalts related to the Hawaiian hot spot: Evidence from isotopic and incompatible element ratios. Geochem. Geophys. Geosyst., 6, Q02L07, doi:10.1029/2004GC000757.

    6. Boyet M., Albarède F., Garcia M.O. and Pik R., 2005, A search for 142Nd evidence of primordial mantle heterogeneities in plume basalts. Geophys. Res. Lett., 32, No 32, L04306.

    5. Bedini, M.R-., Blichert-Toft J., Boyet M. and Albarède F., 2004, Isotopic constraints on the cooling of the continental lithosphere. Earth Planet. Sci. Letters, 223, 99-111.

    4. Albarède F., Télouk P., Blichert-Toft J., Boyet M., Agranier A. and Nelson B., 2004, Precise and accurate isotopic measurements using multiple-collector ICPMS. Geochim. Cosmochim. Acta, 68, 2725-2744.

    3. Boyet M., Blichert-Toft J., Rosing M., Storey M., Télouk P. and Albarède F., 2003, 142Nd evidence for early Earth differentiation. Earth Planet. Sci Letters, 214, 447-442.

    2. Blichert-Toft J., Boyet M., Télouk P. and Albarède F., 2002, 147Sm-143Nd and 176Lu-176Hf in eucrites and the differentiation of the HED parent body. Earth Planet. Sci. Letters, 204, 167-181.

    1. Boyet M., Lapierre H., Tardy M., Bosch D. et Maury R., 2001, Sources of the andesitic components in the Taveyannaz Sandstones and Champsaur Sandstones: implications for the Paleogene geodynamic evolution of the Alps. Bull. Soc. géol. France, 172, n°4, 487-501.

  • 2016. European Research Council, Program Consolidator Grant, « New insight into the origin of the Earth, its bulk composition and its early evolution ».
    2015. France Canada Research Fund in collaboration with Audrey Bouvier (University of Western Ontario): Understanding the formation of the Earth from meteorite isotopic studies,.
    2013. Région Auvergne Young Researcher program, “A search for early differentiation products preserved in Archean terranes (South Africa, Canada, Antarctica).
    2011. Université Blaise Pascal, “Geochemical comparison between two early achean greenstone belts: de Nuvvuagittuq (Canada) and Isua (Greenland)”.
    2008. European Research Council, Program Starting Grant, “Early Earth evolution: chemical differentiation vs. mantle mixing”.

  • EDUCATION AND CURRENT EMPLOYMENT

    • 2016. Senior Researcher, Centre National de la Recherche Scientifique
    • 2014. Habilitation à Diriger des Recherches
    • 2007. Junior Researcher, Centre National de la Recherche Scientifique CNRS Research
    • 2003. Ph.D. Ecole Normale Supérieure de Lyon, France

    PREVIOUS POSITIONS

    • 2006-2007. Teaching assistant, University of Saint-Etienne, France
    • 2005-2006. Postdoctoral Fellow ENS Lyon (Initiative Postdoc), France
    • 2003-2005. Carnegie Fellow, Carnegie Institution of Washington, USA

    RESEARCH INTERESTS

    • Chronology of early Solar System processes
    • Planetary differentiation during magma ocean stages
    • Nucleosynthetic anomalies and Solar System formation
    • Long-term evolution of the Silicate Earth
    • Nature, evolution and dynamic of the Earth’s mantle

    HONOURS AND AWARDS

    • 2022. Geochemisry Fellow (EAG-GS)
    • 2021. Georges Millot Award from the Société Géologique de France
    • 2020. AGU Daily Lecture
    • 2013. Médaille de Bronze du CNRS
    • 2011. Houtermans Award of the European Association of Geochemistry
    • 2008. Etienne Roth Award of Académie des Sciences (France)
    • 2008. Outstanding Young Scientist Award from the European Geosciences Union
    • 2005. Boyet and Carlson, Science 2005 selected 6th Breakthrough of the Year by Science Magazine (vol. 309)

    COMMISSIONS OF TRUST

    PRESENT

    • Deputy Director of the Laboratoire Magmas et Volcans since 2023
    • President of the CNRS PNP program (National program of planetology) since 2022
    • Member of the scientific council of the Institut of the Department Solid Earth (INSU-CNRS) since 2020

    PAST

    • Member of the scientific committee of the LABEX UnivEarthS (2019-2023)
    • EAG Goldschmidt Officer from 2019 to 2022
    • Head of the Geochemistry group in the Laboratoire Magmas et Volcans from 2015 to 2019
    • Member of the peer review panel of the LABEX CLERVOLC from 2016 to 2019
    • Member of the organizing and scientific committees of the Goldschmidt 2021 in Lyon (France)
    • EAG Goldschmidt Officer from 2019 to 2022
    • AGU Bowen Award committee from 2017 to 2021
    • Associate Editor of the Journal Geochimica et Cosmochimica Acta, ELSEVIER (2012-2018).
    • Agence Nationale de la Recherche (ANR) peer review panel 2013.
    • Head of the ‘Early Earth’ group of LMV from 2011 to 2015 (10 researchers),
    • Member of the Doctoral school council of the University of Saint Etienne (2012-2016)
    • Co-ordinator of Themes for the Goldschmidt Conference (2014 and 2017)
    • Co-chair in international conferences: Goldschmidt 2007, 2010, 2012, 2013, 2014, 2017 ; EGU 2012 ; AGU 2015.

    REFEREE

    • Articles: Chemical Geology, Earth and Planetary Science Letters, Geochimica et Cosmochimica Acta, Geology, International Journal of Mass Spectrometry, Nature, Nature Geoscience, PNAS, Precambrian Research, Science
    • Proposals: ANR (France), ERC, NSF (USA), NERC (UK), etc

    SELECTED GRANTS

    • 2016. European Research Council, Program Consolidator Grant, « New insight into the origin of the Earth, its bulk composition and its early evolution », 2 M€.
    • 2015. France Canada Research Fund in collaboration with Audrey Bouvier (University of Western Ontario): Understanding the formation of the Earth from meteorite isotopic studies, 15 k€.
    • 2013. Région Auvergne Young Researcher program, “A search for early differentiation products preserved in Archean terranes (South Africa, Canada, Antarctica), 100 k€.
    • 2011. Université Blaise Pascal, “Geochemical comparison between two early achean greenstone belts: de Nuvvuagittuq (Canada) and Isua (Greenland)”, one year of postdoc salary 50 k€.
    • 2008. European Research Council, Program Starting Grant, “Early Earth evolution: chemical differentiation vs. mantle mixing”, 450 k€.

    SUPERVISION OF GRADUATE STUDENTS AND POSTDOCTORAL FELLOWS

    • Postdoc supervisor: Pierre Bonnand (2016-2019), Zoltan Konc (2013-2014), Jonathan O’Neil (2013-2014), Abdelmouhcine Gannoun (2009-2011)
    • PhD supervisor: Claudine Israel (2017-2020), Paul Frossard (2017-2020), Pierre Faure (2016-2019), Nina Bellot (2012-2015), Camille Cartier (2011-2014), Hanika Rizo (2009-2012).
    • Master supervisor: Marion De France (2019), Marilyn Imabult (2018), Claudine Israel (2016-2017), Paul Frossard (2017), Sacha Millet (2016), Morgan Chevreuil (2014), Ioana B. Radu (2014), Benjamin Wasilewski (2013), Nina Bellot (2012), Hanika Rizo (2009).

    COMMITTEE MEMBERS (PhD, HDR)

    • 2021. Examinatrice et Présidente du jury de la Thèse de Doctorat de Luca Terray (LMV, Université Clermont Auvergne, France)
    • 2020. Rapporteur de la Thèse de Doctorat d’Allessandro Maltese (University of Bern, Switzerland)
    • 2020. Rapporteur de la Thèse de DoctoratPhD Laetitia Allibert (IPGP, Université Sorbonne Paris Cité, France)
    • 2019. HDR Guillaume Morard (IMPMC, Sorbonne Université, France)
    • 2018. HDR Christophe Thomazo (Biogéosciences, Université Bourgogne Franche-Comté, France)
    • 2018. PhD Austin Jarl Boyd (NHMD, University of Copenhagen)
    • 2017. PhD Maximilien Verdier-Paoletti (MNHN, Paris)
    • 2017. PhD Mélodie-Neige Cornu (LMV, Université Clermont Auvergne)
    • 2016. HDR Yves Marrocchi (CRPG, Université de Lorraine, France)
    • 2016. PhD Emily Pringle (IPGP, Université Sorbonne Paris Cité, France)
    • 2016. PhD Ingrid Blanchard (IPGP, Université Sorbonne Paris Cité, France)
    • 2012. PhD Emmanuelle Albalat (ENS Lyon, France)

    INVITED LECTURES (Universities and Workshops)

    • 2022. Académie des Sciences, Belles-Lettres et Arts de Clermont-Ferrand
    • 2021. Ecole Nationale d’Exobiologie, Marseille, France
    • 2021. Workshop Collège de France, Paris, France
    • 2021. Museum für Naturkunde, Berlin, Germany
    • 2019. Institut de Physique du Globe de Paris, France
    • 2019. Le Temps des Sciences de l’Univers, Académie des Sciences de Paris
    • 2019. Workshop “The Evolving Earth”, Paris, France
    • 2018. Workshop “Reading Terrestrial Planet Evolution in Isotopes and Element Measurements”, ISSI, Bern, Switzerland
    • 2018. ENS Paris, France
    • 2018. Royal Society meeting “Earth dynamics and the development of plate tectonics”, London, UK
    • 2017. MPMC, MNHN
    • 2017. Keynote Goldschmidt Paris, France.
    • 2016. Workshop “Before the Moon”, Tokyo, Japan
    • 2014. Montpellier, France.
    • 2012. Laboratoire de Géodynamique des Chaînes Alpines, Grenoble, France.
    • 2012. Institut de Physique du Globe de Paris, France.
    • 2012. Laboratoire de Géodynamique des Chaînes Alpines, Grenoble, France.
    • 2009. Steinmann Institut fur Geologie, Mineralogie, Palaontologie, Bonn, Germany.
    • 2007. Ecole de Physique “géodynamique interne”, Les Houches, France.
    • 2007. Bayerisches Geoinstitut, Bayreuth, Germany.
    • 2007. Institut de Physique du Globe de Paris, France.
    • 2006. Laboratoire Magmas et Volcans, Université de Clermont-Ferrand, France.
    • 2006. Université de Saint-Etienne, France.
    • 2006. Laboratoire de Sciences de la Terre, Ecole Normale Supérieure de Lyon, France.
    • 2006. Observatoire Midi-Pyrénées, Toulouse, France

  • European Research Council, Program Consolidator Grant, « New insight into the origin of the Earth, its bulk composition and its early evolution », 2 M€.

    The main geochemical features of the mantles of terrestrial planets and asteroids can be attributed to differentiation events that occurred during or shortly after the formation of the Solar System. Numerous questions remain regarding the Earth’s bulk composition and the most likely scenario for its evolution prior to the last major differentiation event caused by a giant impact leading to the formation of the Moon. The aim of this five-year project is to evaluate the state-of-the-art models of the Earth’s early evolution with the following main objectives: (i) Defining precisely the age of the Moon’s formation, (ii) Refining the giant impact model and the Earth-Moon relationship, (iii) Dating the successive magmatic ocean stages on Earth, and (iv) Constraining the Earth mantle’s composition in terms of rare earth element concentrations. These different questions will be addressed using trace elements, radiogenic isotopic systematics (146Sm-142Nd, 147Sm-143Nd, 138La-138Ce) and stable isotopes. ISOREE is a multi-disciplinary project that combines isotope and trace element geochemistry, experimental geochemistry and spectroscopy. A large number of samples will be analysed, including terrestrial rocks with ages up to 3.8 Ga, chondrites, achondrites and lunar samples.

    This proposal will provide the tools to tackle a vast topic from various angles, using new methodologies and instrumentation and promoting innovation and creativity in European research. This research program is essential to further constrain the major events that occurred very early on in the Earth’s history, such as the Earth’s cooling, its crustal growth, the surface conditions and development of potential habitats for life.