Médard Etienne

 Medard_Etienne

Maître de conférences, UCA-OPGC
Équipe de Pétrologie
Maître de conférences
Bureau: 1.08 - LMV Cezeaux
Téléphone: 04.73.34.67.45
Courriel : etienne.medard@uca.fr

Page perso : cliquer ici
  • Thèmes de Recherche :

    • Fusion du manteau et magmas primaires
    • Effet de l’eau sur les relations de phases
    • Différentiation magmatique de la planète Mars
    • Géochimie des éléments sidérophiles
    • Thermobarométrie des systèmes volcaniques
    • Outils : pétrologie expérimentale (piston-cylindre, autoclave à chauffage externe, autoclave à chauffage interne, four 1 atm, centrifuge), micro-analyse (MEB, microsonde, Raman, SIMS), modélisation thermodynamique, pétrographie.

     

  • Responsabilités scientifiques et administratives :

    • Membre élu de la 35ème section du CNU (11/2011 – 10/2015)
    • Responsable de la Licence des Sciences de la Terre de l’UBP (09/2010 – 08/2014)
    • Vice-président du Département des Sciences de la Terre de l’UBP (01/2011 – 12/2012)

     

  • Activités d’enseignement :

    • Etablissement : Université Blaise-Pascal
    • Discipline : Initiation à la géologie – Pétrologie magmatique – Terrain – Microscopie
    • Niveau : Licence et Master Sciences de la Terre, Licence Biologie, Licence Professionnelle Chimie

  • Publications LMV depuis 2010 :

    Rang A :

    • Latutrie B., Harris A., Médard E., Gurioli L. (2017). Eruption and emplacement dynamics of a thick trachytic lava flow of the Sancy volcano (France). Bulletin of Volcanology vol.79, p.4, doi:10.1007/s00445-016-1084-6.
    • Baasner A., Médard E., Laporte D., Hoffer G. (2016). Partial melting of garnet lherzolite with water and carbon dioxide at 3 GPa using a new melt extraction technique: implications for intraplate magmatism. Contribution to Mineralogy & Petrology vol.171, p.45, doi:10.1007/s00410-016-1233-0.
    • Condamine P., Médard E., Devidal J.L. (2016). Experimental melting of phlogopite‑peridotite in the garnet stability field. Contribution to Mineralogy & Petrology vol.171, p.95, doi:10.1007/s00410-016-1306-0.
    • Druitt T., Mercier M., Florentin L., Deloule E., Cluzel N., Médard E., Cadoux A. (2016). Magma storage and extraction during plinian and interplinian periods at Santorini caldera (Greece). Journal of Petrology vol.57, p.461-494, doi:10.1093/petrology/egw015.
    • Collinet M., Médard E., Charlier B., Vander Auwera J., Grove T.L. (2015). Melting of the primitive martian mantle at 0.5–2.2 GPa and the origin of basalts and alkaline rocks on Mars. Earth and Planetary Science Letters vol.427, p.83-94, doi:10.1016/j.epsl.2015.06.056.
    • Martin A., Médard E., Devouard B., Keller L.P., Righter K., Devidal J.L., Rahman Z. (2015). Fayalite oxidation processes in Obsidian Cliffs rhyolite flow, Oregon. American Mineralogist vol.100, p.1153-1164, doi:10.2138/am-2015-5042.
    • Médard E., Schmidt M.W., Wämlle M., Keller N.S., Günther D. (2015). Platinum partitioning between metal and silicate melts: Core formation, late veneer and the nanonuggets issue. Geochimica et Cosmochimica Acta vol.162, p.183-201, doi:10.1016/j.gca.2015.04.019.
    • Condomine P., Médard E. (2014). Experimental melting of phlogopite-bearing mantle at 1 GPa: Implications for potassic magmatism. Earth and Planetary Science Letters 397, 80-92. doi:10.1016/j.epsl.2014.04.027.
    • Dauphas N., Roskosz M., Alp E.E., Neuville D.R., Hu M.Y., Sio C.K., Tissot F.L.H., Zhao J., Tissandier L., Médard E., Cordier C. (2014). Magma redox and structural controls on iron isotope variations in Earth’s mantle and crust. Earth and Planetary Science Letters 398, 127-140. doi:10.1016/j.epsl.2014.04.033.
    • Robert B., Harris A., Gurioli L., Médard E., Sehlke A., Whittington A. (2014). Textural and rheological evolution of basalt flowing down a lava channel. Bulletin of Volcanology 76, 824. doi:10.1007/s00445-014-0824-8.
    • Sehlke A., Whittington A., Robert B., Harris A., Gurioli L., Médard E. (2014). Pahoehoe to `a`a transition of Hawaiian lavas: an experimental study. Bulletin of Volcanology vol.76, p.876, doi:10.1007/s00445-014-0876-9.
    • Sorbadere F., Médard E., Laporte D., Schiano P. (2013). Experimental melting of hydrous peridotite–pyroxenite mixed sources: Constraints on the genesis of silica-undersaturated magmas beneath volcanic arcs: Earth and Planetary Science Letters, v. 384, p. 42-56. doi:10.1016/j.epsl.2013.09.026.
    • Hetényi G., Taisne B., Garel F., Médard E., Bosshard S., Mattsson H.B. (2012). Scales of columnar jointing in igneous rocks: field measurements and controlling factors. Bulletin of Volcanology 74, 457-482. doi:10.1007/s00445-011-0534-4..
    • Malfait W.J., Sanchez-Valle C., Ardia P., Médard E., Lerch P. (2011). Compositional dependent compressibility of dissolved water in silicate glasses: American Mineralogist, v. 96, p. 1402-1409. doi:10.2138/am.2011.3718.

    Rang B et C :

    • Marique N., Samaniego P., Médard E., Mariño J., Valderrama P., Liorzou C., Fidel L. (2016). Pre-eruptive magmatic processes associated with the historical (218 ± 14 aBP) explosive eruption of Tutupaca. Cities on Volcanoes 9 conference, Puerto Varas, Chile, 20-25 November 2016.
    • Whittington A., Soldati A,, Sehlke A., Robert B., Médard E., Harris A., Gurioli L., Chigna G. (2016). “ Lava flow morphology as a proxy for lava flow rheology: mapping rheological transitions in basaltic lava flows”. workshop on Volcano Geology in Sicily, July, 2016.
    • Baratoux D., Collinet M., Médard E. (2015). A revised thermal evolution of Mars from remote-sensing chemistry and new experimental data in the 0.5-2.5 GPa pressure range (présentation orale). 26th IUGG General Assembly, Prague, June 22-July 2nd.
    • Médard E., Schmidt M.W., Martin A.M., Van Orman J.A., Wälle M., Devidal J.L., Lanzirotti A., Newville M., Günther D. (2015). Evidence for metal anions in silicate melts: implications for Pt partitioning, nanonuggets and core formation (poter). vol.46, p.Abstract #2905, Lunar and Planetary Science, The Woodlands, Planetary Institute, 16-20 mars.
    • Baasner A., Médard E., Laporte D. (2014). Partial Melting of Garnet Lherzolite with H2O and CO2 at 3 GPa: Implications for Intraplate Magmatism. Abstract DI21A-4258 presented at 2014 Fall Meeting, AGU, San Francisco, CA, 15-19 December (poster). .
    • Collinet M., Charlier B., Médard E., Vander Auwera J., Grove T.L. (2014). New experimental constraints on the origin of shergottites: super-chondritic Ca/Al in melts from a garnet-free martian mantle. Lunar and Planetary Science 45, Abstract #2776, Lunar and Planetary Institute, The Woodlands, 17-21 mars (oral). .
    • Collinet M., Charlier B., Namur O., Oeser M., Médard E., Vander Auwera J., Weyer S. (2014). Fe and Mg isotope fractionation in olivine from the NWA 1068 shergottite. Goldschmidt 2014, Sacramento, 8-13 juin (oral). .
    • Collinet M., Médard E., Vander Auwera J., Charlier B. (2014). Alkaline primary melts from the primitive mantle of Mars. Lunar and Planetary Science 45, Abstract #2839, Lunar and Planetary Institute, The Woodlands, 17-21 mars (poster). .
    • Dauphas N., Roskosz M., Alp E.E., Neuville D.R., Hu M., Sio C.K., Tissot F., Zhao J., Tissandier L., Médard E. (2014). Controls of P-T-X-fO2 on Iron Isotopic Fractionation in Igneous Rocks. Abstract V52B-01 presented at 2014 Fall Meeting, AGU, San Francisco, CA, 15-19 December (oral). .
    • Manrique N., Samaniego P., Médard E., Mariño J., Valderrama P., Liorzou C. (2014). Procesos petrogenéticos y condiciones físicas pre-eruptivas responsables de la erupción reciente del volcán Tutupaca (Tacna). XVII Congreso Peruano de Geología, Resumenes extendidos. Sociedad Geológica del Perú, Lima. .
    • Médard E., Collinet M. (2014). Shergottites : partial melts of a depleted martian mantle. Lunar and Planetary Science 45, Abstract #2840, Lunar and Planetary Institute, The Woodlands, 17-21 mars (poster). .
    • Médard E., Martin A.M., Collinet M., Righter K., Grove T.L., Newville M., Lanzirotti A. (2014). Fe3+ partitioning during basalt differentiation on Mars: insights into the oxygen fugacity of the shergottite mantle source(s). Abstract V52B-03 presented at 2014 Fall Meeting, AGU, San Francisco, CA, 15-19 December (oral). .
    • Collinet M., Médard E., Vander Auwera J., Charlier B. (2013). Melting of a primitive martian mantle at 1-2 GPa: experimental constraints on the origin of martian magmas. in Lunar and Planetary Science 44, Abstract #2542, Lunar and Planetary Institute, The Woodlands, 18-22 mars (poster). 2013. .
    • Condamine P., Médard E., Laporte D., Nauret F. (2013). Experimental melting of phlogopite-peridotite at 1 GPa - Implications for potassic magmatism. in Goldschmit 2013, Florence. Mineralogical Magazine, 77(5), 909. .
    • Dauphas N., Roskosz M., Lin J.F., Liu J., Neuville D.R., Alp E.E., Hu M., Zhao J., Mc Cammon C.A., Okuchi T., Tomioka N., Sio C.K., Tissot F., Tissandier L., Médard E., Cordier C. (2013). Pressure control on iron isotope variations in MORBs determined by nuclear resonant vibrational spectroscopy. in Abstract MR52A-03 presented at 2013 Fall Meeting, AGU, San Francisco, CA, 9-13 December (oral)., December. .
    • Laporte D., Koga K., Médard E., Schiano P. (2013). Observer, quantifier, modéliser les processus magmatiques et leurs produits - Un colloque en l'honneur de Pierre Boivin et Ariel Provost à Clermont-Ferrand 23 et 24 mai. .
    • Martin A., Médard E., Devouard B., Keller L.P., Righter K., Devidal J.L., Rahman Z. (2013). Fayalite oxidation processes at Obsidian Cliffs, Oregon. in Goldschmidt 2013, Florence, 25-30 août (poster). .
    • Médard E., Le Pennec J.L., Francomme J., Temel A., Nauret F. (2013). Amphibole barometry in rhyolitic systems: an experimental recalibration and application to the Cappadocian ignimbrites (Turkey). in Goldschmitt conference, août 2013, Florence, Italie (oral). .
    • Roskosz M., Dauphas N., Alp E., Sio C., Bi W., Tissot F., Hu M., Bouhifd A., Médard E. (2013). Pressure control on iron isotope variations in MORBs determined by nuclear resonant vibrational spectroscopy. in Abstract MR31A-2275 presented at 2013 Fall Meeting, AGU, San Francisco, CA, 9-13 December (oral). .
    • Roskosz M., Dauphas N., Alp E.E., Sio C.K., Tissot F.L.H., Neuville D., Hu M., Zhao J., Tissandier L., Cordier C., Médard E. (2013). Redox and pressure controls on iron isotope variations in MORB determined by NRIXS spectroscopy. in Goldschmidt 2013, Florence, 25-30 août (oral invité). .
    • Sorbadere F., Schiano P., Metrich N., Médard E., Laporte D. (2013). Constraints on the origin of silica-undersaturated arc magmas inferred from melt inclusions and experimental melting of peridotite - pyroxenite mixed source. in AGU 2013 Fall meeting, San Francisco, 9-13 December. .
    • Boivin P., Devouard B., Laporte D., Médard E. (2012). The Chaîne des Puys (French Massif Central) volcanic range: A textbook example of magma differentiation. lst International Congress On Management And Awareness In Protected Volcanic Landscapes. 21-25/5/2012 Olot. Spain. .
    • Collinet M., Médard E., Devouard B., Peslier A. (2012). Constraints on the parental melts of enriched shergottites from image analysis and high pressure experiments. 43nd Lunar and Planetary Science Conference, 19-23 March 2012, The Woodlands, Texas. .
    • Collinet M., Médard E., Vander Auwera J., Charlier B. (2012). Anhydrous melting of a primitive martian mantle: new experiments at 1-2 GPa. The Mantle of Mars Workshop, Lunar and Planetary Institute, Houston, 10-12 septembre (talk). .
    • Condamine P., Médard E., Laporte D. (2012). Low-degree partial melting of phlogopite-lherzolite at 1 GPa: implications for potassic magmatism. EMPG XIV, Kiel, March 4-7th (poster). .
    • Dauphas N., Roskosz M., Alp E.E., Sio C.K., Tissot F.L.H., Neuville D., Hu M., Zhao J., Tissandier L., Cordier C., Médard E. (2012). Redox control on iron isotope variations in magmas determined by nuclear resonant vibrational spectroscopy. European Mineralogical Conference 2012, Frankfurt am Main, 2-6 septembre. .
    • Dauphas N., Roskosz M., Alp E.E., Sio C.K., Tissot F.L.H., Neuville D., Hu M., Zhao J., Tissandier L., Médard E. (2012). Controls on iron isotope variations in planetary magmas. Lunar and Planetary Science 43, Abstract #, Lunar and Planetary Institute, Houston (talk). .
    • Dauphas N., Roskosz M., Alp E.E., Sio C.K., Tissot F.L.H., Neuville D., Hu M., Zhao J., Tissandier L., Médard E. (2012). Iron isotope geochemistry with a synchrotron light beam. Goldschmidt 2012, Montréal, 24-29 juin. .
    • Laporte D., Médard E., Devouard B., Boivin P., Condamine P., Hardiagon M., Thiéry R. (2012). Cenozoic volcanism in the french massif central: ongoing research activity on a protected volcanic area of high scientific value. lst International Congress On Management And Awareness In Protected Volcanic Landscapes. 21-25/5/2012 Olot. Spain. .
    • Médard E., Paquette J.L., Devouard B., Ricci J., Boivin P. (2012). Gem sapphires and zircons from Cenozoic volcanism of the French Massif Central. lst International Congress On Management And Awareness In Protected Volcanic Landscapes. 21-25/5/2012 Olot. Spain. .
    • Médard E., Schmidt M.W., Condamine P. (2012). Hydrous felsic magmas as primary mantle melts. EMPG XIV, Kiel, March 4-7th (poster). .
    • Sorbadère F., Médard E., Laporte D., Schiano P. (2012). Melting of heterogeneous hydrous mantle in arc settings: constraints on the genesis of silica-undersaturated arc magmas. Goldschmidt 2012, Montréal, 24-29 juin (talk). .
    • Huh M.C., Boyce J., Manning C.E., Médard E. (2011). Experimental determination of hydrogen partitioning in an apatite-haplobasalt andesite melt system at 1200°C and 1 GPa: Abstract V21D-2534 presented at 2011 Fall Meeting, AGU, San Francisco, Calif., 5-9 Dec. .
    • Martin A.M., Righter K., Keller L.P., Médard E., Devouard B., Rahman Z. (2011). Fayalite oxidation processes: Experimental evidence for the stability of pure ferric fayalite?: 42nd Lunar and Planetary Science Conference, 7-11 March 2011, The Woodlands, Texas. LPI contribution no. 1608, p.2716. .
    • Martin A.M., Righter K., Keller L.P., Médard E., Devouard B., Rahman Z. (2011). Fayalite oxidation processes: experimental evidence for the stability of pure ferric fayalite?: Lunar and Planetary Science XLII, Abstract #2716, Lunar and Planetary Institute, Houston (poster). .
    • Hetényi G., Garel F., Médard E., Taisne B., Mattsson B. H., Bosshard S. (2010). Columnar jointing pattern: characterization and interpretation. EGU General Assembly, Vienne, May 2-7. .
    • Malfait W.J., Sanchez-Valle C., Ardia P., Médard E. (2010). Compositional dependent compressibility of dissolved water in silicate glasses. EMPG XIII, Toulouse, April 11-14. .
    • Médard E., Schmidt M.W., Wälle M., Keller N.S., Günther D. (2010). HSE partitioning and core formation: solving the nanonugget issue. EMPG XIII, Toulouse, April 11-14. .
    • Médard E., Schmidt M.W., Wälle M., Keller N.S., Günther D. (2010). Pt in silicate melts: centrifuging nanonuggets to decipher core formation processes. Lunar and Planetary Science 41, Abstract #2639, Lunar and Planetary Institute, Houston. .

Print Friendly, PDF & Email