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Sylvie Demouchy
Short CV and publications
Equipe manteau-interfaces. webpage
Project ’Pasticity of Earth Mantle’ - IRG Marie-Curie - please follow the link : Project PoEM
- Olivine oriented single crystals in their silver sleeve before co-axial deformation experiment.
Research positions and education
Nov- 2007/ to present - CNRS scientific researcher (CR1) at Géosciences Montpellier, France.
2004/2007 - Research associate (post-doctoral fellowship) at the Lunar and Planetary Inst. USRA, Houston, visiting researcher at the University of Minnesota, Minneapolis.
2000/2004 - Ph.D (Dr. rer. nat.) in Mineral Physics, Bayerisches Geoinstitut, University of Bayreuth, Germany.
Before : DEUG SVT, licence STU, Maitrise STU in Earth Sciences at Aix-Marseille I and III Universities, South of France. DEA in Grenoble.
Research interests
- Mineral physics and igneous petrology
- Point defects in solids, diffusion and deformation processes.
- Concentration, distribution and mobility of hydrogen in nominally anhydrous minerals
- Peridotites (thoses losing hydrogen...), komatiites and other ultramafics.
- Experimental apparatus (piston-cylinder, TZM vessel, multi-anvils, Paterson apparatus)
- EMPA, FTIR, SEM-EBSD and SIMS.
Publications
http://www.researcherid.com/rid/A-2502-2009
1. Demouchy S. and Mackwell S. (2003). Water Diffusion in Synthetic Iron-Free Forsterite. Phys. Chem. Minerals. 30. 786-794.
2. Bureau H., Trocellier P., Shaw C., Khodjia H., Bolfan-Casanova N. and Demouchy S. (2003) Determination of the concentration of water dissolved in glasses and minerals using nuclear microprobe. Nuclear Instrument Methods. ICNMTA 2002. Special issue, B201, 449-454.
3. Jacobsen S. D, Demouchy S., Frost, D. J. Boffa-Ballaran T. and Kung J. (2005) A systematic study of OH in hydrous wadsleyite from polarized FTIR spectroscopy and single-crystal X-ray diffraction : oxygen sites for hydrogen storage in the Earth’s interior. Am. Min., 90, 61-70.
4. Demouchy, S., Deloule, E., Frost, D. J. and Keppler, H. (2005) Temperature and pressure dependence of water solubility in iron free-wadsleyite. Am. Mineral, 90, 1084-1091.
5. Demouchy, S., Jacobsen, S. D., Gaillard, F. and Stern, C. R. (2006) Rapid magma ascent recorded by water diffusion profiles in mantle olivine. Geology, 34, 429-432.
6. Demouchy, S. and Mackwell, S. (2006) Mechanisms of hydrogen incorporation and diffusion in iron-bearing olivine. Phys. Chem. Minerals, 33, 347-355.
7. Walker, A.M, Demouchy, S., and Wright, K. (2006) Computer modelling of the energies and vibrational properties of hydroxyl groups in α- and β-Mg2SiO4. Eur. J. Mineral, 18 (5), 529-543.
8. Demouchy, S., Mackwell ,S.J., and Kohlstedt, D. L. (2007) Influence of hydrogen on Mg-Fe interdiffusion in (Mg,Fe)O and implication for the Earth’s lower mantle. Contrib. Mineral. Petrol., 154:279-289.
9. Kamemetsky, V, Kamenetsky, M B, Sobolev, A V, Golovin, A V, Demouchy, S, Faure, K, Sharygin, V V, Kuzmin, D V.(2008) Olivine in the Udachnaya-East kimberlite : types, compositions and origins. J. Petrol., 49 : 823-839.
10. Demouchy, S., Schneider, S. E., Mackwell, S. J., Zimmerman, M. E., Kohlstedt, D L. (2009) Experimental deformation of olivine single crystals at lithospheric temperatures, Geophys. Res Lett. 36, L04304.
11. *Soustelle, V., Tommasi, A., Demouchy S., Ionov, D. (2010) Deformation and fluid-rock interactions in supra-subduction mantle : Microstructures and water contents in peridotite xenoliths from the Avacha volcano, Kamchatka, J. Petrol., 51:363-394.
12. Demouchy S. (2010a) Diffusion of hydrogen in olivine grain boundaries and its implications for the survival of water-rich zones in Earth’s mantle. Earth Planet Sci. Lett. 295:305-313.
(doi : 10.1016/j.epsl.2010.04.019)
13. Demouchy S. (2010b) Hydrogen diffusion in spinel grain boundaries and consequences for chemical homogenization in hydrous peridotites. Contrib. Mineral. Petrol. 160, 887-898.
(doi : 10.1007/s00410-010-0512-4)
14. Demouchy, S., Mainprice, D., Tommasi, A., Couvy, H., Barou, F., Frost D J., Cordier, P. (2011) Forsterite to wadsleyite phase transformation under shear stress and consequences for the Earth’s mantle transition zone. Phys. Earth Planet. Int. 184, 91-104.
(doi :10.1016/j.pepi.2010.11.001)
15. Demouchy, S., Tommasi, A., Barou, F., Mainprice, D., Cordier, P. (2012) Deformation of Olivine in Torsion under Hydrous Conditions. Phys. Earth Planet. Int. 203-203 : 56-70 (doi : 10.1016/j.pepi.2012.05.001).
16. Bolfan-Casanova N., Munoz M., McCammon C., Deloule E., Férot A., Demouchy S., France L., Andrault D., Pascarelli S. (2012). Ferric iron and water incorporation in wadsleyite under hydrous and oxidizing conditions : a XANES, Moessbauer and SIMS study. Am. Min. 97:1483-1493.
17. *Baptiste V., Tommasi, A and Demouchy, S.. (2012) Deformation and hydration of the lithospheric mantle beneath the Kaapvaal craton, South Africa, Lithos. Sp. Issue ’Formation, reactivation and destruction of cratons’, 149:31-50 (doi : 10.1016/j.lithos.2012.05.001).
18. *Denis C, Demouchy, S., Shaw C.S.J. (2013) Evidence of dehydration in peridotites from Eifel Volcanic Field and estimates of the rate of magma ascent. in press online, J. Volcan. Geotherm. Res. 258,85-99. (doi:10.1016/j.jvolgeores.2013.04.010)
19. Demouchy S., Tommasi A., Boffa-Ballaran T., Cordier, P. (2013) Low strength of Earth’s uppermost mantle inferred from tri-axial deformation experiments on dry olivine crystals. in press online, Phys. Earth Planet. Int. (April 2013, doi : 10.1016/j.pepi.2013.04.008).
(20). Demouchy S., Ishikawa, Tommasi A., Alard, O and Keshav S. Characterisation of the hydration in the oceanic mantle lithosphere : peridotite xenoliths from Ontong Java Plateau as an example. Submitted to EPSL, May 2013.
(21). *Soustelle V., Tommasi A., Demouchy S., Leander F. Melt-rock interactions, deformation, hydration, and seismic properties in the sub-arc lithospheric mantle inferred from xenoliths from seamounts near Lihir, Papua-New-Guinea. Submitted to Tectonophysics, May 2013.
Recent presentations at scientifc institutions and meetings
Demouchy S.(26/04/2012)."Solubility and Diffusivity of Water in the Deep Earth : Lab & Fields, Consequences & Challenge. CRPG, Nancy, France. Invited seminar.
Demouchy S., Tommasi A. and Cordier P. (2-7/09/2012). Deformation of olivine single crystals under lithospheric conditions. Abs EMC2012-36. First EMC2012, Frankfurt, Germany. Abstract and Talk.
Demouchy S., (3rd October 2012). Solubility and Diffusivity of Water in the Deep Earth : Highlights from recent lab and fields studies. University of Tokyo, Dept. Earth Science, Komaba Campus, Tokyo, Japan. Invited seminar.
Demouchy S. (9th October 2012). Olivine, wet or dry, deformed or not.University of Tokyo, Earthquake Research Institut, Hongo Campus, Tokyo, Japan. Invited seminar.
Demouchy S. (11th October 2012). Solubility and Diffusivity of Water in the Deep Earth : highlight from recent lab and fields studies. JAMSTEC, Yokosuka, Japan. Invited seminar.
Demouchy S.. (19th October 2012). Solubility and Diffusivity of Water in the Deep Earth : highlight from recent lab and fields studies, and possible consequence for the Earth. HACTO lab, Institute for the Study of the Earth Interior, Okayama University, Misasa, Japan. Invited seminar.
Demouchy S., Tommasi A. and Cordier P. (Dec 2012). Deformation of olivine single crystals under lithospheric conditions. AGU Fall Meet. Abs. MR11-2464. Abstract and Poster.
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Other strong and invasive interests outside the lab
Books, Food, modern and street art, photography (perso selection visible here ), english gardens and american landscapes, architecture, english poetry (especially e.e.cummings), european cinema, New York City by night and by day, japanese green tea and agedashi tofu, India, bondi ladoo, pakoras , silk sari, Istanbul the cosmopolite & Constantinople the historic.............. and of course to drink Chablis, to make capsule, to bother you.
CV in English, just there.........
- CV-E-2012
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