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Keywords

Earth's core Différenciation planétaire Keywords Platinum Group Elements silicate melt oxygen fugacity high temperature experiments high pressure experiments quench textures Iron alloy Core segregation Diamond anvil cell DAC Carbon High-pressure experiments High-pressure Bioweathering In situ characterization Earth differentiation Chemical composition High-pressure and high-temperature experiments Elemental partitioning Enstatitechondrites Hydrogen In sitemperature cells Planetary differentiation Early earth
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Number of documents

32

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Enseignant-chercheur en structure et évolution de la terre et des autres planètes, Valérie Malavergne a une activité de recherche centrée sur les matériaux d’intérêt géologiques, et plus particulièrement ceux ayant fabriqués les planètes telluriques. Ces travaux de recherche concernent autant la minéralogie, la pétrologie, la cosmochimie, la thermodynamique que la planétologie. Un de ses thèmes majeurs porte sur la différenciation planétaire qu’elle aborde principalement par l’expérience (à hautes températures sous atmosphère contrôlée, à hautes températures et hautes pressions) sur des objets synthétiques ou naturels (comme des météorites ou autres minéraux terrestres), couplées à des techniques analytiques et d’imagerie de pointe.Ses activités d’enseignement se déroulent en L1-3 Sciences Physiques, en M1 Géomatériaux et Environnement et concernent des domaines variés (thermodynamique, acoustique, analyses des matériaux, sciences de la Terre, mathématiques…).    

Journal articles18 documents

  • Valérie Malavergne, Hélène Bureau, Caroline Raepsaet, Fabrice Gaillard, Mélissa Poncet, et al.. Experimental constraints on the fate of H and C during planetary core-mantle differentiation. Implications for the Earth. Icarus, Elsevier, 2019, 321, pp.473-485. ⟨10.1016/j.icarus.2018.11.027⟩. ⟨insu-01949794⟩
  • Valérie Malavergne, E Charon, J Jones, P Cordier, K Righter, et al.. The formation of nuggets of highly siderophile elements in quenched silicate melts at high temperatures: Before or during the silicate quench?. Earth and Planetary Science Letters, Elsevier, 2015, 434, pp.197-207. ⟨10.1016/j.epsl.2015.11.037⟩. ⟨cea-01338138⟩
  • Valérie Malavergne, Patrick Cordier, Kevin Righter, Fabrice Brunet, Brigitte Zanda, et al.. How Mercury can be the most reduced terrestrial planet and still store iron in its mantle. Earth and Planetary Science Letters, Elsevier, 2014, 394, pp.186-197. ⟨10.1016/j.epsl.2014.03.028⟩. ⟨hal-00999438⟩
  • Nang Htay Yin, Yann Sivry, Caroline Avril, Stephan Borensztajn, Jérome Labanowski, et al.. Bioweathering of lead blast furnace metallurgical slags by Pseudomonas aeruginosa. International Biodeterioration and Biodegradation, Elsevier, 2014, 86, pp.372-381. ⟨10.1016/j.ibiod.2013.10.013⟩. ⟨hal-01324777⟩
  • C. Avril, Valérie Malavergne, R. Caracas, B. Zanda, B. Reynard, et al.. Raman spectroscopic properties and Raman identification of CaS-MgS-MnS-FeS-Cr$_2$FeS$_4$ sulfides in meteorites and reduced sulfur-rich systems. Meteoritics and Planetary Science, Wiley, 2013, 48 (8), pp.1415-1426. ⟨hal-00864928⟩
  • Caroline Avril, Valérie Malavergne, Razvan Caracas, Brigitte Zanda, Bruno Reynard, et al.. Raman spectroscopic properties and Raman identification of CaS-MgS-MnS-FeS-Cr 2 FeS 4 sulfides in meteorites and reduced sulfur-rich systems. Meteoritics and Planetary Science, Wiley, 2013, 48 (8), pp.1415-1426. ⟨10.1111/maps.12145⟩. ⟨hal-02107398⟩
  • K. Righter, S. Sutton, L. Danielson, K. Pando, G. Schmidt, et al.. The effect of f$_{O_{2}}$ on the partitioning and valence of V and Cr in garnet/melt pairs and the relation to terrestrial mantle V and Cr content. American Mineralogist, Mineralogical Society of America, 2011, 96 (6), pp.1278-1290. ⟨hal-00740885⟩
  • Valérie Malavergne, M. Toplis, S. Berthet, J. Jones. Highly reducing conditions during core formation on Mercury: Implications for internal structure, the distribution of heat-producing elements and the origin of a magnetic field.. Icarus, Elsevier, 2010, 206 (1), pp.199-209. ⟨hal-00740884⟩
  • S. Berthet, Valérie Malavergne, K. Righter. Evolution of Indarch (EH4 chondrite) at 1 GPa and high temperature: implications for early planetary differentiation processes.. Geochimica et Cosmochimica Acta, Elsevier, 2009, 73 (20), pp.6402-6420. ⟨hal-00740882⟩
  • Mohamed Ali Bouhifd, Laurent Gautron, Nathalie Bolfan-Casanova, Valérie Malavergne, Tahar Hammouda, et al.. Potassium partitioning into molten iron alloys at high-pressure: Implications for Earth's core. Physics of the Earth and Planetary Interiors, Elsevier, 2007, 160 (1), pp.22-33. ⟨10.1016/j.pepi.2006.08.005⟩. ⟨hal-00309034⟩
  • M. Burchard, S. Kubsky, H. Bureau, A. Somogyi, Valérie Malavergne, et al.. X-ray transmission properties of intelligent anvils in diamond anvil cells. High Pressure Research, Taylor & Francis, 2006, 26 (3), pp.235-241. ⟨10.1080/08957950600835013⟩. ⟨insu-00225264⟩
  • Manuel Munoz, H. Bureau, Valérie Malavergne, B. Ménez, M. Wilke, et al.. In situ speciation of nickel in hydrous melts exposed to extreme conditions.. Physica Scripta, IOP Publishing, 2005, 115, pp.921-922. ⟨10.1238/Physica.Topical.115a00921⟩. ⟨hal-00101950⟩
  • Julien Siebert, François Guyot, Valérie Malavergne. Diamond formation in metal–carbonate interactions.. Earth and Planetary Science Letters, Elsevier, 2005, 229, pp.205-216. ⟨10.1016/j.epsl.2004.10.036⟩. ⟨hal-00021524⟩
  • H. Bureau, B. Menez, Valérie Malavergne, A. Somogyi, M. Munoz, et al.. In-situ determination of the partitioning of Pb, Rb, Sr between hydrous melts and aqueous fluids at high pressure and temperature. Geochimica et Cosmochimica Acta Supplement, Pergamon, 2005, 69, pp.659. ⟨hal-00319029⟩
  • Julien Siebert, Valérie Malavergne, François Guyot, Rossana Combes, Isabelle Martinez. The behaviour of sulphur in metal–silicate core segregation experiments under reducing conditions.. Physics of the Earth and Planetary Interiors, Elsevier, 2004, 143-144, pp.433-443. ⟨10.1016/j.pepi.2003.07.022⟩. ⟨hal-00086173⟩
  • Valérie Malavergne, Julien Siebert, François Guyot, Laurent Gautron, Rossana Combes, et al.. Si in the core? New high-pressure and high-temperature experimental data.. Geochimica et Cosmochimica Acta, Elsevier, 2004, 68, pp.4201-4211. ⟨10.1016/j.gca.2004.04.013⟩. ⟨hal-00086959⟩
  • F Farges, M Munoz, R Siewert, Valérie Malavergne, Ge Brown, et al.. Transition elements in water-bearing silicate glasses/melts. Part II. Ni in water-bearing glasses. Geochimica et Cosmochimica Acta, Elsevier, 2001, 65 (10), pp.1679--1693. ⟨10.1016/S0016-7037(00)00624-4⟩. ⟨hal-00693735⟩
  • Valérie Malavergne, François Guyot, Karim Benzerara, Isabelle Martinez. Description of new shock-induced phases in the meteorites of Shergotty, Zagami, Nakhla and Chassigny. Journal of Maps, Taylor & Francis, 2001, pp.1297-1305. ⟨hal-01158610⟩

Conference papers8 documents

  • Valérie Malavergne, F. Brunet, K. Righter, B. Zanda, C. Avril, et al.. Experimental Behavior of Sulfur Under Primitive Planetary Differentiation Processes, the Sulfide Formations in Enstatite Meteorites and Implications for Mercury. Lunar and Planetary Science Conference XXXXIII, Mar 2012, Houston, United States. pp.1860. ⟨hal-00741067⟩
  • Valérie Malavergne, E. Charon, J. Jones, Arnaud Agranier, A. Campbell. Pt, Au, Pd and Ru partitioning between mineral and silicate melts: The role of metal nanonuggets. Lunar and Planetary Science Conference XXXXIII, Mar 2012, Houston, United States. pp.1873. ⟨hal-00741068⟩
  • Valérie Malavergne, E. Charon, J. Jones, Arnaud Agranier, A. Campbell. Pt, Au, Pd and Ru Partitioning Between Mineral and Silicate Melts: The Role of Metal Nanonuggets. 43rd Lunar and Planetary Science Conference, Mar 2012, The Woodlands, United States. pp.1873. ⟨insu-00948873⟩
  • Valérie Malavergne. Le partage des éléments très sidérophiles entre métal et silicate sous conditions extrêmes: implications sur la compréhension des processus primitifs de différenciation planétaire. Université Blaise Pascal, Jun 2010, Clermont Ferrand, France. ⟨hal-00741083⟩
  • Valérie Malavergne, J.P. Gallien, H. Bureau. Carbon solubility in metallic phases at high pressure and high temperature: preliminary results with application to planetary cores. 39th Lunar and Planetary Sciences Conference, Mar 2008, League City Texas, United States. ⟨hal-00353712⟩
  • Valérie Malavergne, J.-P. Gallien, S. Berthet, H. Bureau. Carbon solubility in metallic phases at high pressure and high temperature: preliminary results with application to planetary cores. Lunar and Planetary Science Conference XXXIX, Mar 2008, Houston, United States. pp.1340. ⟨hal-00740902⟩
  • Valérie Malavergne. Le Platine et les platinoïdes peuvent-ils aider à comprendre les processus primitifs de différenciation planétaire ? Illustrations avec la Terre et Mars. Institut Universitaire Européen de la Mer, Apr 2008, Brest, France. ⟨hal-00741082⟩
  • S. Berthet, Valérie Malavergne, K. Righter. Evolution of the Indarch (EH4 chondrite) at 1 GPa and temperature. Lunar and Planetary Science Conference XXXIX, Mar 2008, Houston, United States. pp.2026. ⟨hal-00741062⟩

Poster communications3 documents

  • Valérie Malavergne, K. Righter, F. Brunet, C. Avril, B. Zanda, et al.. Le soufre dans un contexte planétaire primitif réduit. , Colloque quadriennal de bilan et perspectives du Programme National de Planétologie (PNP), Sep 2010, Brest-Plouzané, France. pp.1, 2010. ⟨hal-00721128⟩
  • C. Avril, Valérie Malavergne, Eric D. van Hullebusch, F. Guyot, F. Brunet, et al.. Bioweathering of a Reduced Chondritic Material: Implications for Enstatite Chondrites. 20th meeting of the International Mineralogical Association, Aug 2010, Budapest, Hungary. pp.1, 2010. ⟨hal-00721126⟩
  • C. Avril, Valérie Malavergne, Eric D. van Hullebusch, F. Brunet, F. Guyot, et al.. Bioweathering of a reduced chondritic material : implications for enstatite chondrites. 72nd Annual Meeting of the Meteorical Society - Met Soc09, Jul 2009, Nancy, France. pp.1, 2009. ⟨hal-00721066⟩

Book sections1 document

  • B. Ménez, H. Bureau, J. Cauzid, Valérie Malavergne, A. Somogyi, et al.. In Situ X-Ray Microscopy at High Temperature and Pressure. A. Méndez-Vilas, J. Díaz. Modern Research and Educational Topics in Microscopy, Formatex, pp.976 à 988, 2007. ⟨insu-00353670⟩

Preprints, Working Papers, ...1 document

  • Fabrice Gaillard, Mohamed Ali Bouhifd, E. Füri, Valérie Malavergne, Yves Marrocchi, et al.. The diverse planetary ingassing/outgassing paths produced over billions of years magmatic activity. 2021. ⟨insu-03117324⟩

Habilitation à diriger des recherches1 document

  • Valérie Malavergne. Approche Expérimentale de la Planétologie. Différenciation planétaire et métamorphisme de matériaux chondritiques. Planétologie. Université de Marne la Vallée, 2008. ⟨tel-00816679⟩