Dr Antoine Benard

Profile

Biography

Academic qualifications

  • 2008-2012 Ph.D. with honours at the University of Saint-Étienne and Laboratory Magmas and Volcanoes (LMV, Clermont-Ferrand, France). Research subject: ‘Magmatism, metasomatism and recycling above a subduction zone, insights from mantle xenoliths from the andesitic Avachinsky volcano (Kamchatka, Russia)’. Supervisor: Prof. Dmitri A. Ionov
  • 2008 M.Sc. with honours at the Institut of Earth Physics (IPGP) and Normal Superior School (Paris, France). Research internship subject: ‘Compositional impact on structural environment of nickel in silicate glasses, geochemical implications’. Supervisors: Dr. Laurence Galoisy and Prof. Georges Calas
  • 2007 Honours B.Sc. with honours at the European Institut of Marine Studies (IUEM, Brest, France). Research internship subject: ‘Magma sediment mingling in a late-ordovician volcano’. Supervisor: Dr. Martial Caroff

Employment history

  • October 2012-December 2015 Post-doctoral fellow at Earth Materials & Processes group, Research School of Earth Sciences, ANU
  • October 2011-August 2012 Research and teaching assistant (petrology, mineralogy, mapping, geochemistry, field trips) at the University of Saint-Étienne

Research

Research interests

- Mantle wedge petrology and geochemistry
- Arc magmas evolution from the mantle wedge to the lower arc crust
- Volatile abundances, speciation and recycling processes in the mantle wedge
- Relationship between deep magmatic and metasomatic subduction zone processes, oxidation state and economically important elements distribution
- Magma-sediment interaction in soft-substrate environment
- Speciation of transition metals in silicate melt and glasses - relationship with partitioning coefficients

Analytical and spectroscopic techniques:

- EPMA
- LA-ICPMS, MC-ICPMS
- SIMS
- TIMS
- UV-Vis-NIR and Raman spectroscopy

Imaging techniques:

- Optical microscopy
- MEB
- Confocal and multi-photonic microscopy

Experimental techniques:

- HT ovens
- Melt inclusions experimental techniques

Publications

Peer-reviewed journal articles

  • Caroff, M., Vidal, M., Bénard, A. and Darboux, J. R. (2009). A late-Ordovician phreatomagmatic complex in marine soft-substrate environment: the Crozon volcanic system, Armorican Massif (France), Journal of Volcanology and Geothermal Research 184, 351-366
  • Ionov, D. A., Bénard, A. and Plechov, P. Yu. (2011). Melt evolution in subarc mantle: evidence from heating experiments on spinel-hosted melt inclusions in peridotite xenoliths from the andesitic Avacha volcano (Kamchatka, Russia), Contributions to Mineralogy and Petrology 162, 1159-1174
  • Bénard, A., Palle, S., Doucet, L. -S. and Ionov, D. A. (2011). Three-dimensional imaging of sulfides in silicate rocks at sub-micron resolution with multi-photon microscopy, Microscopy and Microanalysis 17, 937-943
  • Bénard, A. and Ionov, D. A. (2012). A new petrogenetic model for low-Ca boninites: evidence from veined subarc xenoliths on melt-mantle interaction and melt fractionation, Geochemistry, Geophysics, Geosystems, doi: 10.1029/2012GC004145
  • Ionov, D. A., Bénard, A., Plechov, P. Yu. and Shcherbakov, V. D. (2013). Along-arc variations in lithospheric mantle compositions in Kamchatka, Russia: First trace element data on mantle xenoliths from the Klyuchevskoy Group volcanoes, Journal of Volcanology and Geothermal Research 263, 122-131
  • Bénard, A. and Ionov, D. A. (2013). Melt- and fluid-rock interaction in supra-subduction lithospheric mantle: evidence from andesite-hosted veined peridotite xenoliths, Journal of Petrology 54(11), 2339-2378
  • Nebel, O., Sossi, P. A., Bénard, A., Wille, M., Vroon, P. Z., and Arculus, R. J. (2015). Redox-variability and controls in subduction zones from an iron-isotope perspective, Earth and Planetary Science Letters 432, 142-151
  • Bénard, A., Arculus, R. J., Nebel, O., Ionov, D. A. and McAlpine, S. R. B. (2016). Silica-enriched mantle sources of subalkaline picrite-boninite-andesite island arc magmas, Geochimica et Cosmochimica Acta, in press, doi: 10.1016/j.gca.2016.09.030
  • Bénard, A., Nebel, O., Ionov, D. A., Arculus, R. J., Shimizu, N. and Métrich, N. (2016). Primary silica-rich picrite and high-Ca boninite melt inclusions in pyroxenite veins from the Kamchatka sub-arc mantle, Journal of Petrology, in press, doi: 10.1093/petrology/egw066
  • Bénard, A., Koga, K. T., Shimizu, N., Kendrick, M. A., Ionov, D. A., Nebel, O. and Arculus, R. J. (2016). Chlorine and fluorine partition coefficients and abundances in sub-arc mantle xenoliths (Kamchatka, Russia): Implications for melt generation and volatile recycling processes in subduction zones, Geochimica et Cosmochimica Acta, in press, doi: 10.1016/j.gca.2016.10.035

Manuscripts under review

  • Bénard, A., Arculus, R. J., Woodland, A. B., Klimm, K., Ionov, D. A., Wilke, M., Botcharnikov, R. E. and Nebel, O. Oxidized primary melts in the sub-arc mantle: Implications for the generation of high-Mg andesite and low-Fe (calcalkaline) andesite-dacite-rhyolite suites, Contributions to Mineralogy and Petrology
  • Bénard, A., Woodland, A. B., Arculus, R. J., Nebel, O. and McAlpine S. R. B. Variation in sub-arc mantle oxidation state recorded in refractory peridotite xenoliths from the West Bismarck Arc, Chemical Geology
  • Klimm, K., Bénard, A., Woodland, A. B., Arculus, R. J., Shimizu, N., Wilke, M., Botcharnikov, R. E., Rivard, C., Ionov, D. A. and Nebel, O. Sulfate-rich primitive arc melts hosted by sub-arc mantle peridotite, Nature
  • Nebel, O., Sossi, P. A., Yaxley, G. M., Davies, R. D., Bénard, A., Woodhead, J. D. and Arculus, R. J. Iron isotope evidence for large-scale return of recycled crust in thermochemical plumes, Nature

Conference abstracts

  • Bénard, A. and Ionov, D. A. (2009). Veined peridotite xenoliths from the Avacha volcano, Kamchatka: fluid types and fluid-rock interaction in supra-subduction mantle, Geochimica et Cosmochimica Acta 73(13), Supplement 1, 108 (poster presentation)
  • Bénard, A. and Ionov, D. A. (2010). Melt-rock interaction in supra-subduction mantle: evidence from veined peridotites from the Avacha volcano, Kamchatka, Geophysical Research Abstract 12, EGU2010-2112 (oral presentation)
  • Bénard, A., Doucet, L. -S., Palle, S. and Ionov, D. A. (2010). Multiphotonic confocal microscopy 3D imaging: application to mantle sulfides in sub-arc environment (Avacha Volcano, Kamchatka), Geophysical Research Abstract 12, EGU2010-6649-1 (poster presentation)
  • Bénard, A., Galoisy, L. and Calas, G. (2010). Nickel speciation in multi-oxydes components silicate glasses: new UV-VIS-NIR spectroscopic results and geochemical implications, Geophysical Research Abstract 12, EGU2010-6633-1 (poster presentation)
  • Bénard, A. and Ionov, D. A. (2010). PGE and trace elements in veined sub-arc mantle xenoliths, Avachinsky volcano, Kamchatka, Geochimica et Cosmochimica Acta 74(11), Supplement 1, 76 (oral presentation)
  • Bénard, A., Plechov, P. Yu. and Ionov, D. A. (2010). Melt inclusions in sub-arc mantle xenoliths from the andesitic Avacha volcano (Kamchatka), AGU Fall Meeting 2010, abstract #V11F-06 (oral presentation)
  • Bénard, A., Ionov, D. A., Shimizu, N., and Plechov, P. Yu. (2011). The volatile content of subduction zone melts and fluids, Mineralogical Magazine 75(3), 513 (oral presentation)
  • Bénard, A., Olivier, T., Moine, B. N., Ionov, D. A., Doucet, L. -S. and Boyet, M. (2011). Laser-induced photoluminescence spectroscopies: probes for sulfide crystal-chemistry, Mineralogical Magazine 75(3), 513 (poster presentation)
  • Bénard, A., Cottin, J. -Y., Doucet, L. -S. and Bascou, J. (2012). Dunite cumulates from the Piton Chisny, La Réunion: insights into primary melt evolution in a crustal magma chamber, 34th International Geological Congress, Brisbane, Australia (poster presentation)
  • Bénard, A., Shimizu, N., Klimm, K., Ionov, D. A. and Plechov, P. Yu. (2012). Volatile content, S speciation and isotopes in the mantle wedge, 1st European Mineralogical Conference, Frankfurt, Germany (oral presentation)
  • Klimm, K., Bénard, A., Kohn, S. C., Botcharnikov, R. E., Ionov, D. A. and Plechov, P. Yu. (2012). Sulfate in the mantle wedge. The oxidising agent in the subduction zones, 1st European Mineralogical Conference, Frankfurt, Germany (oral presentation)
  • Leibrandt, S., Bénard, A. and Brigaud, B. (2013). Magma-sediment interactions in the Limagne trench (Massif Central, France): distinction between phreatomagmatic and stricto-sensu peperitic processes, Geophysical Research Abstract 15, EGU2013-8402 (poster presentation)
  • Galoisy, L., Calas, G., Villain, O. and Bénard, A. (2013). Variability of Cr3+ and Ni2+ environments in oxide glasses: structural or chemical probes? 12th International Conference on the structure of Non Crystalline Materials, Riva del Garda (Trento), Italy (poster presentation)
  • Bénard, A., McAlpine, S. R. B., Nebel, O., Tollan, P. M. E., Arculus, R. J. and Ionov, D. A. (2013). Melt evolution from the mantle wedge to the crust: insights from South Kamchatka and West Bismarck arc xenoliths, Mineralogical Magazine 77(5), 684 (oral presentation)
  • Bénard, A., Park, J. -W., Nebel, O., Ionov, D. A., Arculus, R. J., Alard, O. and Shimizu, N. (2014). Noble metal enrichment in the crust through hydrous boninitic melts, Goldschmidt 2014 Conference Abstract (oral presentation)
  • Nebel, O., Sossi, P. A., Whan, T. H. E., Bénard, A., Wille, M., Vroon, P. Z., and Arculus, R. J. (2014). Iron isotope compositions of oceanic arc lavas, Goldschmidt 2014 Conference Abstract (oral presentation)
  • Bénard, A., Nebel, O., Vasilyiev, P., Arculus, R. J., Ionov, D. A. and Yaxley, G. M. (2015). On the formation of subalkaline arc magmas: source and primary melt characteristics inferred from xenoliths and experiments, Goldschmidt 2015 Conference Abstract (oral presentation)
  • Klimm, K., Bénard, A., Woodland, A. B., Arculus, R. J. and Ionov, D. A. (2015). The sulphate cycle in subduction zones. Another clue to the Great Oxydation Event? Goldschmidt 2015 Conference Abstract (oral presentation)
  • Bénard, A., Woodland, A. B., Klimm, K., Arculus, R. J., Nebel, O. and Ionov, D. A. (2016). Oxidised primary arc melts trapped in sub-arc mantle xenoliths and the origin of calcalkaline or low-Fe rock suites, Goldschmidt 2016 Conference Abstract (poster presentation)
  • Bénard, A., Woodland, A. B., Ionov, D. A., Arculus, R. J., Klimm, K. and Nebel, O. (2016). The oxidation state of the sub-arc lithospheric mantle: New data and models, 35th International Geological Congress (poster presentation)

Updated:  31 March 2017/Responsible Officer:  RSES Webmaster/Page Contact:  RSES Webmaster