Crustal Evolution, Early Earth, Subduction, igneous and metamorphic petrology, petrogenesis, Rare Earth Element minerals, thermodynamic modelling, mountain building, high grade metamorphic rocks, Laser ablation, Oxygen isotopes.
Employment and higher education
- Oct 2017- Present CNRS researcher at the Laboratoire Magmas et Volcans, Université Clermont Auvergne
- Sept 2016-Sept 2017 Auvergne Fellow at the Laboratoire Magmas et Volcans, Université Clermont Auvergne
- From Feb. 2016- Aug. 2016 Post Doctoral Research Associate at the University of Oxford.
- 2015 Teaching Fellow at the University of Portsmouth.
- 2011-2015 Post Doctoral Senior Research Associate at the University of Portsmouth. NERC Standard Grant entitled “When on Earth did plate tectonics begin?” (PI: Dr. Craig Storey).
- 2007-2011 PhD student at the Department of Earth Sciences in Graz (Austria). FWF funded PhD subject: “Study of metamorphic petrology of the CMC (Alaska, USA) and evaluation of Pressure-Temperature conditions.” (PI: Prof. Kurt Stüwe).
- co-supervisor of PhD student Emma Hart (2012-2016): ‘Assessing the role of rutile as an indicator of plate tectonic regime’.
- supervisor of Master students: Hélène Legros (2013), Clémentine Antoine (2018), Lucas Maulny (2019)
- co-supervisor of Master students: Simon Matte (2017)
- 2020-Present Member of the EAG “Training and outreach” committee
- 2019-Present CNRS equality correspondent at the LMV
- 2019 – Present Member of the OPGC Committee, UCA, France
- 2017 –2019 Organizer of the Laboratoire Magmas et Volcans weekly seminar, UCA, France
- 2012-2019 Committee Member of the « Metamorphic Study Group » of Great-Britain. Treasurer since 2014.
Publications LMV :
- Antoine C., Bruand E., Guitreau M., Devidal J.L. (2020). Understanding preservation of primary signatures in apatite by comparing matrix and zircon‐hosted crystals from the Eoarchean Acasta Gneiss Complex (Canada). Geochemistry, Geophysics, Geosystems DOI:10.1029/2020GC008923 .
- Bonnand P., Bruand E., Matzen A.K., Schiavi F., Smythe D., Wood B.J., Boyet M., Halliday A.N. (2020). Redox control on chromium isotope behaviour in silicate melts in contact with magnesiochromite. Geochimica et Cosmochimica Acta vol.288, p.282-300, DOI:10.1016/j.gca.2020.07.038 .
- Bruand E., Fowler M., Storey C., Laurent O., Antoine C., Guitreau M., Heilimo E., Nebel O. (2020). Accessory mineral constraints on crustal evolution: elemental fingerprints for magma discrimination. Geochemical Perspectives Letters vol.13, p.7-12, DOI:10.7185/geochemlet.2006 .
- Doucelance R., Bruand E., Matte S., Bosq C., Auclair D., Gannoun A.M. (2020). In-situ determination of Nd isotope ratios in apatite by LA-MC-ICPMS:Challenges and limitations. Chemical Geology vol.550, p.119740, DOI:10.1016/j.chemgeo.2020.119740 .
- Bruand E., Storey C., Fowler M., Heilimo E., EIMF (2019). Oxygen isotopes in titanite and apatite, and their potential for crustal evolution research. Geochimica et Cosmochimica Acta vol.255, p.144-152, DOI:10.1016/j.gca.2019.04.002 .
- Bruand E., Fowler M., Storey G., Darling J. (2017). Apatite trace element and isotope applications to petrogenesis and provenance. American Mineralogist vol.102, p.75-84, DOI:10.2138/am-2017-5744 .
Publications antérieures :
Bruand, E., Fowler, M., Storey, C., Darling, J. (2017). Apatite trace element and isotope applications to petrogenesis and provenance. American Mineralogist. doi:10.2138/am-2017-5744. Disponible en ligne sous le lien suivant http://www.minsocam.org/MSA/Ammin/AM_Preprints.html
Jahn, I., Strachan, R.A.S., Fowler, M., Bruand, E., Kinny, P.D., Clark, C., Taylor, R.J.M. (2017). Evidence from U-Pb zircon geochronology for early Neoproterozoic (Tonian) reworking of an Archean inlier in northeastern Shetland, Scottish Caledonides. Journal of the Geological Society. Doi: 10.1144/jgs2016-054. Disponible en ligne sous le lien suivant http://jgs.lyellcollection.org/content/early/2016/11/07/jgs2016-054.abstract.
Hart, E., Storey, C., Bruand, E., Schertl, H-P., Alexander, B. (2016). Mineral inclusions in rutile : a novel recorder of HP-UHP metamorphism. Earth and Planetary Science Letters, 446, 137-148.
Bruand, E., Storey, C., Fowler, M. (2016) Apatite inclusions within zircon and titanite as a window into the early Earth. Geology, 44, 91-94. DOI:10.1130/G37301.1.
Bruand, E., Storey, C., Fowler, M. (2014) Accessory phases (titanite, apatite, zircon) behaviour in late Caledonian high Ba-Sr plutons, Scotland: petrogenetic and source implications. Journal of Petrology, 55 (8), 1619-1651.
Bruand, E., Gasser, D., Stüwe, K. (2014) Metamorphic P-T conditions across the Chugach Metamorphic Complex (Alaska) – A record of focused exhumation during transpression. Lithos, 190-191, 292-312.
Gasser, D., Bruand, E., Rubatto, D., Stüwe, K. (2012) The behaviour of monazite from greenschist facies phyllites to anatectic gneisses: an example from the Chugach Metamorphic Complex, southern Alaska. Lithos, 134-35, 108-122.
Gasser, D., Rubatto, D., Bruand, E., Stüwe, K. (2012) Large-scale, short-lived metamorphism and magmatism in the Chugach Metamorphic Complex (CMC), southern Alaska: a SHRIMP U-Pb study on zircons. Geological Society of America Bulletin, 124(5-6), 886-905. DOI: 10.1130/B30507.1.
Bruand, E., Gasser, D., Bonnand, P., Stüwe, K. (2011) The petrology and geochemistry of a metabasite belt along the southern margin of Alaska. Lithos, 127, 282-297. DOI: 10.1016/j.lithos.2011.07.026.
Gasser, D., Bruand, E., Stüwe, K., Foster D., Schuster, R., Fügenschuh, B., Pavlis, T. (2011) Formation of a metamorphic core complex along an obliquely convergent continental margin: structural and thermochronological evolution of the Chugach Metamorphic Complex, southern Alaska. Tectonics, 30, TC2012. DOI: 10.1029/2010TC002776.
Proyer, A. and Bruand, E. (2010) Moderne Petrologie – was ist das? Mitteilungen des naturwissenschaftlichen Vereines für Steiermark, 140, 69-84.
Bruand, E., Stüwe, K., Proyer, A. (2010) Pseudosection modelling for a selected eclogite body from the Koralpe (Hohl), Eastern Alps. Mineralogy and Petrology, 99, 75-87. DOI: 10.1007/s00710-009-0097-7
I- Subduction Theme
Subduction zones represent sites of major chemical transfer between distinct external and internal reservoirs within Earth. Metamorphic rocks which typically develop in subduction settings and fingerprint those conditions are often overprinted by secondary processes, obscuring their primary histories and thus the secular geological record. Over the past 5 years, we sampled several famous HP-LT type localities to better understand the different chemical transfers occurring during subduction. This sample collection is currently used to develop new petrological tools and provides an independent means to assess subduction zones.
Collaborators: Inês Pereira, K. Koga, E. Rose-Koga, C. Nicollet, N. Cluzel, A. Vitale-Brovarone
Schistes Lustrés unit (Western Alps)
Christian crossing the accretionary prism
A gabbro pod plunging into an alpine lake (Tour Real, Queyras)
A deformed gabbro, remnant of the subducted oceanic crust
Sanbagawa belt (Japan)
II- Early Earth theme
My current research focuses on exploiting chemical signatures locked within mineral phases to help understand large-scale Earth processes and geodynamics back in time. For this reason, in the past years I participated to fieldwork expeditions which focussed on a detailed sampling of two Archean cratons (Kaapvaal, South Africa and Pilbara, Australia). These fieltrips were realised by developing strong collaborations with international specialists in geochemistry and Archean geology.
Collaborators: Prof. Jean-Francois Moyen (University of Jean-Monnet, France), Prof. Peter Cawood and Oliver Nebel (Monash University, Australia) , Marc-Alban Millet (Cardiff University, Wales), Hugh Smithies (GSWA, Australia) and Dave Champion (Geosciences Australia).