Hugues LEROUX

Professor at Polytech-Lille

Bâtiment C6 - 216
Unité Matériaux et Transformations
Cité scientifique, Bât. C6
Université de Lille
59655 Villeneuve d'Ascq
France
Tel: +33 (0) 320 33 71 25
Fax: +33 (0) 320 43 65 91
Email: Hugues.Leroux@univ-lille.fr

Research team: Earth and Planetary Materials

Research

Astromineralogy - Physical mineraly - Crystal defects - Transmission electron microscopy

Current PhD thesis

• Daniel HALLATT, Thermal and Shock behaviour of phyllosilicates, application to the Ryugu Asteroid . Thesis started in 2020.
• Maxime MORGANO, Eau des chondrites : approche expérimentale de l'intéraction eau-silicates . Thesis started in 2019. Other co-advisor: Corentin LE GUILLOU.

Defended PhD thesis

• Pierre-Marie ZANETTA, Study of the accretion of the firsts solids of our solar system using advanced electron microscopy. Thesis defended in 2019. Other co-advisors: Brigitte Zanda, Corentin LE GUILLOU. Present position: Postdoc research associate at the Lunar and Planetary Laboratory, University of Arizona.
• Guillaume Bellino, Analytical transmission electron microscopy study of unmelted and partially melted chondrules in primitive ordinary chondrites. Thesis defended in 2015. Present position: Enseignant dans le secondaire (SVT).
• Boris Laurent, Hydrogen fractionation induced by ionizing irradiation of protoplanetary dust analogs. Thesis defended in 2014. Other co-advisor: Mathieu Roskosz. Present position: Research Fellow à l'Université de St Andrews, Ecosse.
• Priscille Cuvillier, Quantitative analysis of diffusion phenomena in meteorite samples. Transmission electron microscopy study. Thesis defended in 2014. Other co-advisor: Damien JACOB. Present position: Ingénieure Microscopiste et Matériaux à EDF.
• Jessy Gillot, Synthesis and crystallization of porous amorphous silicates in the MgO-CaO-SiO2 ternary: application the amorphous-crystal transition in accretion disks. Thesis defended in 2010. Other co-advisor: Mathieu Roskosz. Present position: Ingénieur brevet chez Saint-Gobain Recherche, Aubervilliers, France.
• Julien Stodolna, Transmission electron microscopy study of cometary samples from the Startdust mission. Thesis defended in 2010. Other co-advisor: Damien JACOB. Present position: Research engineer at EDF R&D MMC Metallurgy.
• Carinne Davoisne, Evolution des silicates dans les milieux interstellaires, circumstellaires et cométaires : le rôle de l’irradiation et de la température. Thesis defended in 2006. Present position: Maitre de Conférences, Laboratoire de Réactivité et Chimie des Solides, université de Picardie Jules Verne, manuscript de thèse.
• Philippe CARREZ, Evolution des silicates interstellaires et circumstellaires: le rôle des irradiations. Thesis defended in 2002. Other co-advisor: Patrick CORDIER. Present position: Maître de conférences au laboratoire.

Latest scientific contributions in LillOA (Lille Open Archive)

Publications

21. P. Cuvillier, N. Chaumard, H. Le Roux, B. Zanda, R.H. Hewins, D. Jacob, B. Devouard, A TEM study of exsolution in Ca-rich pyroxenes from the Paris and Renazzo chondrites: Determination of type I chondrule cooling rates, Meteoritics & Planetary Science 53, 482-492 (2018), [doi: 10.1111/maps.13032, LillOA]
20. M. Roskosz, E. Deloule, J. Ingrin, C. Depecker, D. Laporte, S. Merkel, L. Remusat, H. Le Roux, Kinetic D/H fractionation during hydration and dehydration of silicate glasses, melts and nominally anhydrous minerals, Geochimica et Cosmochimica Acta 233, 14-32 (2018), [doi: 10.1016/j.gca.2018.04.027, LillOA]
19. R.H. Hewins, B. Zanda, M. Humayun, A. Nemchin, J.-P. Lorand, S. Pont, D. Deldicque, J.J. Bellucci, P. Beck, H. Leroux, M. Marinova, L. Remusat, C. Göpel, E. Lewin, M. Grange, A. Kennedy, M.J. Whitehouse, Regolith breccia Northwest Africa 7533: Mineralogy and petrology with implications for early Mars, Meteoritics & Planetary Science 52, 89-124 (2017), [doi: 10.1111/maps.12740, LillOA]
18. K. Demyk, C. Meny, H. Le Roux, C. Depecker, J.-B. Brubach, P. Roy, C. Nayral, W.-S. Ojo, F. Delpech, Low-temperature MIR to submillimeter mass absorption coefficient of interstellar dust analogues II. Mg and Fe-rich amorphous silicates, Astronomy & Astrophysics 606, A50 (2017), [doi: 10.1051/0004-6361/201730944, LillOA]
17. K. Demyk, C. Meny, X.-H. Lu, G. Papatheodorou, M. Toplis, H. Le Roux, C. Depecker, J.-B. Brubach, P. Roy, C. Nayral, W.-S. Ojo, F. Delpech, D. Paradis, V. Gromov, Low temperature MIR to submillimeter mass absorption coefficient of interstellar dust analogues I. Mg-rich glassy silicates, Astronomy & Astrophysics 600, A123 (2017), [doi: 10.1051/0004-6361/201629711, LillOA]
16. H. Leroux, D. Jacob, M. Marinova, R.H. Hewins, B. Zanda, S. Pont, J.-P. Lorand, M. Humayun, Exsolution and shock microstructures of igneous pyroxene clasts in the Northwest Africa 7533 Martian meteorite, Meteoritics & Planetary Science 51, 932-945 (2016), [doi: 10.1111/maps.12637, LillOA]
15. C. Engrand, J. Duprat, E. Dartois, K. Benzerara, H. Le Roux, D. Baklouti, A. Bardyn, C. Briois, H. Cottin, H. Fischer, N. Fray, M. Godard, M. Hilchenbach, Y. Langevin, J. Paquette, J. Rynö, R. Schulz, J. Silén, O. Stenzel, L. Thirkell, Variations in cometary dust composition from Giotto to Rosetta, clues to their formation mechanisms, Monthly Notices of the Royal Astronomical Society 462, S323-S330 (2016), [doi: 10.1093/mnras/stw2844, LillOA]
14. M. Roskosz, B. Laurent, H. Le Roux, L. Remusat, Experimental investigation of irradiation-driven hydrogen isotope fractionation in analogs of protoplanetary hydrous silicate dust, The Astrophysical Journal 832, 55 (2016), [doi: 10.3847/0004-637X/832/1/55, LillOA]
13. S.P. Thompson, K. Demyk, S.J. Day, A. Evans, H. Le Roux, C. Depecker, J.E. Parker, L. Connor, H. Wilhelm, G. Cibin, Amorphous silicate nanoparticles with controlled Fe-Mg pyroxene compositions, Journal of Non-Crystalline Solids 447, 255-261 (2016), [doi: 10.1016/j.jnoncrysol.2016.06.017, LillOA]
12. J.-P. Lorand, R.H. Hewins, L. Remusat, B. Zanda, S. Pont, H. Leroux, M. Marinova, D. Jacob, M. Humayun, A. Nemchin, M. Grange, A. Kennedy, C. Göpel, Nickeliferous pyrite tracks pervasive hydrothermal alteration in Martian regolith breccia: A study in NWA 7533, Meteoritics & Planetary Science 2099-2120 (2015), [doi: 10.1111/maps.12565, LillOA]
11. P. Cuvillier, H. Le Roux, D. Jacob, P. Hirel, Fe-Mg interdiffusion profiles in rimmed forsterite grains in the Allende matrix: Time-temperature constraints for the parent body metamorphism, Meteoritics & Planetary Science 50, 1529-1545 (2015), [doi: 10.1111/maps.12493, LillOA]
10. H. Le Roux, P. Cuvillier, B. Zanda, R.H. Hewins, GEMS-like material in the matrix of the Paris meteorite and the early stages of alteration of CM chondrites, Geochimica et Cosmochimica Acta 170, 247-265 (2015), [doi: 10.1016/j.gca.2015.09.019, LillOA]
9. B. Laurent, M. Roskosz, L. Remusat, F. Robert, H. Leroux, H. Vezin, C. Depecker, N. Nuns, J.-M. Lefebvre, The deuterium/hydrogen distribution in chondritic organic matter attests to early ionizing irradiation, Nature Communications 6, 8567 (2015), [doi: 10.1038/ncomms9567, LillOA]
8. C. Alwmark, L. Ferriere, S. Holm-Alwmark, J. Ormo, H. Le Roux, E. Sturkell, Impact origin for the Hummeln structure (Sweden) and its link to the Ordovician disruption of the L chondrite parent body, Geology 43, 279-282 (2015), [doi: 10.1130/G36429.1, LillOA]
7. A. Elmaleh, F. Bourdelle, F. Caste, K. Benzerara, H. Le Roux, B. Devouard, Formation and transformations of Fe-rich serpentines by asteroidal aqueous alteration processes: A nanoscale study of the Murray chondrite, Geochimica et Cosmochimica Acta 158, 162-178 (2015), [doi: 10.1016/j.gca.2015.03.007, LillOA]
6. M. Roskosz, H. Le Roux, A significant amount of crystalline silica in returned cometary samples : Bridging the gap between astrophysical and meteoritical observations, The Astrophysical Journal 801, L7 (2015), [doi: 10.1088/2041-8205/801/1/L7, LillOA]
5. J. Stodolna, Z. Gainsforth, H. Le Roux, A.L. Butterworth, T. Tyliszczak, D. Jacob, A.J. Westphal, Iron valence state of fine-grained material from the Jupiter family comet 81P/Wild 2 - A coordinated TEM / STEM EDS / STXM study, Geochimica et Cosmochimica Acta 122, 1-16 (2013), [doi: 10.1016/j.gca.2013.08.006, LillOA]
4. H. Le Roux, D. Jacob, Fine-grained material encased in microtracks of Stardust samples, Meteoritics & Planetary Science 48, 1607-1617 (2013), [doi: 10.1111/maps.12185, LillOA]
3. D. Jacob, L. Palatinus, P. Cuvillier, H. Le Roux, C. Domeneghetti, F. Camara, Ordering state in orthopyroxene as determined by precession electron diffraction, American Mineralogist 98, 1526-1534 (2013), [doi: 10.2138/am.2013.4296, LillOA]
2. J. Stodolna, D. Jacob, H. Le Roux, M.J. Burchell, Microstructure modifications of silicates induced by the collection in aerogel: Experimental approach and comparison with Stardust results, Meteoritics & Planetary Science 47, 696-707 (2012), [doi: 10.1111/j.1945-5100.2011.01305.x, LillOA]
1. J. Stodolna, D. Jacob, H. Le Roux, Mineralogy and petrology of Stardust particles encased in the bulb of track 80: TEM investigation of the Wild 2 fine-grained material, Geochimica et Cosmochimica Acta 87, 35-50 (2012), [doi: 10.1016/j.gca.2012.03.026, LillOA]

Full list (The link could be slow)

Communications

10. M. Colleit, D. Jacob, M. Marinova, H. Leroux, Analyse texturale par ACOM-TEM d'assemblages de pyroxènes dans une météorite martienne, Poster, Colloque de la Société Française des Microscopies (SFµ), Bordeaux, France, Jul 2017 [LillOA]
9. M. Marinova, H. Leroux, D. Jacob, Investigation of titanomagnetite grains in NWA 7533 Martian meteorite by STEM-EDX and STEM-EELS, Poster, Colloque de la Société Française des Microscopies (SFµ), Bordeaux, France, Jul 2017 [LillOA]
8. C. Le Guillou, A.-M. Blanchenet, H. Leroux, M. Marinova, A. Addad, D. Jacob, J.-F. Dhenin, M. Declomesnil, K-factor determination for the FEI Titan Themis (Super X four quadrant EDS system) at 300kV, Poster, Colloque de la Société Française des Microscopies (SFµ), Bordeaux, France, Jul 2017 [LillOA]
7. M. Marinova, P. Cuvillier, A. Gloter, D. Jacob, H. Leroux, STEM-EELS investigation of planar defects in olivine, Poster, European Microscopy Congress, Lyon, France, Aug 2016 [LillOA]
6. P. Cuvillier, H. Le Roux, D. Jacob, Fe-Mg Interdiffusion Profiles in Forsterite within the Allende Matrix. Time-Temperature Constraints Deduced from a TEM Study, Communication dans un congrès sans actes, Lunar and Planetary Science Conference 44th, Houston, Etats-Unis d'Amérique, Jan 2013 [LillOA]
5. P. Cuvillier, H. Le Roux, D. Jacob, Fe-Mg Interdiffusion Profiles in Isolated Forsterites in the Allende Matrix. Evidence for a Parent Body Origin: Time-Temperature Constraints Deduced from a TEM Study, Communication dans un congrès sans actes, 45th Lunar and Planetary Science Conference, Houston, Etats-Unis d'Amérique, Jan 2014 [LillOA]
4. P. Cuvillier, H. Le Roux, D. Jacob, Fe-Mg zoning in forsterite in the Acfer 094 matrix: evidence for a pre-accretionary interdiffusion process, Communication dans un congrès sans actes, 77th Annual Meeting of the Meteoritical-Society, Casablanca, Maroc, Jan 2014 [LillOA]
3. P. Cuvillier, N. Chaumard, H. Le Roux, B. Zanda, R. Hewins, D. Jacob, B. Devouard, A TEM Study of Exsolution in Ca-Rich Pyroxenes from the Paris Meteorite: Determination of Type I Chondrule Cooling Rates, Poster, 45th Lunar and Planetary Science Conference, Houston, Etats-Unis d'Amérique, Jan 2014 [LillOA]
2. H. Leroux, M. Marinova, D. Jacob, R. Hewins, B. Zanda, M. Humayun, J.-P. Lorand, A TEM Study of the Fine-Grained Material of the NWA 7533 Martian Regolith Breccia, Communication dans un congrès sans actes, Lunar and Planetary Science Conference 46th, Houston, Etats-Unis d'Amérique, Jan 2015 [LillOA]
1. H. Leroux, D. Jacob, M. Marinova, Pyroxene Microstructure in Coarse-Grained Clasts Within NWA 7533 Martian Meteorite, Poster, Lunar and Planetary Science Conference 46th, Houston, Etats-Unis d'Amérique, Jan 2015 [LillOA]

Full list (The link could be slow)