Marc Blanchard

Chercheur CNRS

Email : marc.blanchardDear bot, you won't get my mail address@and my domain...get.omp.eu

ER6 - Géochimie des Isotopes Stables (GIS)

CV / functions

Research Experiences

2018-	CNRS researcher, Directeur de recherche GET, Université Paul Sabatier, Toulouse, France
2017-2018	CNRS researcher, Chargé de recherche GET, Université Paul Sabatier, Toulouse, France
2008-2016	CNRS researcher, Chargé de recherche IMPMC, Université Pierre et Marie Curie, Paris, France
2007-2008	Post-doc (ANR project SPIRSE): « Ab initio modelling of iron-bearing minerals: isotopic fractionation and surface reactions » (PI: Pr E. Balan) IMPMC, Université Pierre et Marie Curie, Paris, France
2004-2006	Post-doc (NERC project e-Minerals): « Ab initio modelling of arsenic interaction with iron sulphides » (PI: Pr C.R.A. Catlow and Pr K. Wright) DFRL, University College London
2003-2004	Post-doc (RTN EU network HYDROSPEC): « Atomistic modelling of hydrogen defects in ringwoodite » (PI: Pr K. Wright) DFRL, University College London

Diploma

2015

Habilitation à Diriger des Recherches « Contribution of molecular modelling in the crystal-chemical and isotopic study of minerals »

Defense: 09/07/2015, Université Pierre et Marie Curie (France)

2003

PhD in experimental mineralogy (supervisor: Dr. J. Ingrin) « Hydrogen diffusion in garnets (pyropes) »

Defense: 23/09/2003, Université Toulouse III (France)

Affiliations

French Society of Mineralogy and Crystallography (SFMC)
European Association of Geochemistry

Research

My research activity focuses on the understanding and modeling of the molecular scale mechanisms involving minerals, in some fundamental steps of the geochemical cycle of elements in depth or at the surface of the Earth. My work relies essentially on the calculation of the vibrational properties for the information that these techniques provide, and because the vibrational properties also give access to thermodynamic properties such as isotopic fractionation. I develop this research in the group « Géochimie des isotopes stables ».

Isotopic fractionation modeling (Fe, Zn, Mg isotopes and others)
Crystal-chemistry of low-temperature minerals (oxides, sulfides, carbonates, apatites, As-bearing minerals)
Crystal-chemistry of volatiles (H, F, Xe) in nominally anhydrous mantle minerals

Responsibilities

Responsabilities

2021-2025: Deputy director of the GET
2012- : General Secretary of the French Society of Mineralogy and Crystallography (SFMC)
2017-2018: Elected member of the scientific committee of the Observatory Midi-Pyrénées
2014-2016: Elected member of laboratory managing council (IMPMC-Univ Paris 06)

Award

EMU Research Excellence Medal 2017

Publications

Main/Recent publications

2023

Rabin S., Blanchard M., Pinilla C., Poitrasson F., Grégoire M. (2023) Iron and silicon isotope fractionation in silicate melts using first-principles molecular dynamics. Geochimica et Cosmochimica Acta, 343, 212-233
Heard A.W., Dauphas N., Hinz I.L., Johnson J.E., Blanchard M., Alp E.E., Hu M.Y., Zhao J., Lavina B., Fornace M.E., Hu J.Y., Baptiste B. (2023) Isotopic constraints on the nature of primary precipitates in Archean-early Paleoproterozoic iron formations from determinations of the iron phonon density of states of greenalite, and 2L- and 6L-ferrihydrite. ACS Earth and Space Chemistry, 7, 4, 712-727
Brazier J.-M., Blanchard M., Méheut M., Schmitt A.-D., Schott J., Mavromatis V. (2023) Experimental and theoretical investigations of stable Sr isotope fractionation during its incorporation in aragonite. Geochimica et Cosmochimica Acta, 358, 134-147

2022

Soltanmohammadi A., Grégoire M., Fontaine F. J., Bédard L. P., Blanchard M., Rabinowicz M. (2022) Melt percolation, concentration and dyking in the Hawaiian mantle plume and overriding lithosphere: links with the evolution of lava composition along the volcanic chain. Journal of Petrology, 63, egab101
Dauphas N., Nie N. X., Blanchard M., Zhang Z. J., Zeng H., Hu J. Y., Méheut M., Visscher C., Canup R., Hopp T. (2022) The extent, nature, and origin of K and Rb depletions and isotopic fractionations in Earth, Moon, and other planetary bodies. The Planetary Science Journal, 3, 29

2021

Pokrovski G. S., Blanchard M., Saunier G., Poitrasson F. (2021) Mechanisms and rates of pyrite formation from hydrothermal fluid revealed by iron isotopes. Geochimica et Cosmochimica Acta,304, 281-304
Baya C., Le Pape P., Baptiste B., Brest J., Landrot G., Elkaïm E., Noël V., Blanchard M., Ona-Nguema G., Juillot F., Morin G. (2021) Influence of trace level As or Ni on pyrite formation kinetics in anoxic conditions at low temperature. Geochimica et Cosmochimica Acta, 300, 333-353
Pokrovski G. S., Escoda C., Blanchard M., Testemale D., Hazemann J.-L., Gouy S., Kokh M. A., Boiron M.-C., de Parseval F., Aigouy T., Menjot L., de Parseval P., Proux O., Rovezzi M., Beziat D., Salvi S., Kouzmanov K., Bartsch T., Pöttgen R., Doert T. (2021) An arsenic-driven pump for invisible gold in hydrothermal systems. Geochemical Perspectives Letters, 17, 39-44
Rabin S., Blanchard M., Pinilla C., Poitrasson F., Grégoire M. (2021) First-principles calculation of iron and silicon isotope fractionation between Fe-bearing minerals at magmatic temperatures: The importance of second atomic neighbors. Geochimica et Cosmochimica Acta, 304, 101-118.
Pinilla C., de Moya A., Rabin S., Morard G., Roskosz M., Blanchard M. (2021) First-principles investigation of equilibrium iron isotope fractionation in Fe1-xSx alloys at Earth’s core formation conditions. Earth Planet. Sci. Lett. 569, 117059
Aarons S. M., Dauphas N., Blanchard M., Zeng H., Nie N. X., Johnson A. C., Greber N. D., Hopp T. (2021) Clues from ab initio calculations on titanium isotopic fractionation in tholeiitic and calc-alkaline magma series. ACS Earth and Space Chemistry, 5, 2466-2480
Hillaire-Marcel C., Kim ST., Landais A., Ghosh P., Assonov S., Lécuyer C., Blanchard M., Meijer H. A. J., Steen-Larsen H. C. (2021) A stable isotope toolbox for water and inorganic carbon cycle studies. Nature Reviews Earth & Environment, 2, 699-719

2020

Mavromatis V., van Zuilen K., Blanchard M., van Zuilen M., Dietzel M., Schott J. (2020) Experimental and theoretical modelling of kinetic and equilibrium Ba isotope fractionation during calcite and aragonite precipitation. Geochimica et Cosmochimica Acta, 269, 566-580
Chassé M., Blanchard M., Cabaret D., Juhin A., Vantelon D. & Calas G. (2020) First-principles modeling of X-ray absorption spectra enlightens the processes of scandium sequestration by iron oxides. American Mineralogist, 105 (7), 1099-1103
Jollands M.C., Blanchard M., Balan E. (2020) Structure and theoretical infrared spectra of OH-defects in quartz. European Journal of Mineralogy, 32, 311-323

2019

Crépisson C., Sanloup C., Blanchard M., Hudspeth J., Glazyrin K., Capitani F. (2019) The Xe-SiO2 system at moderate pressure and high temperature. Geochemistry, Geophysics, Geosystems, 20, 992–1003
Pokrovski G. S., Kokh M. A., Proux O., Hazemann J-L., Bazarkina E., Testemale D., Escoda C., Boiron M-C., Blanchard M., Aigouy T., Gouy S., de Parseval P., Thibaut M. (2019) The nature and partitioning of invisible gold in the pyrite-fluid system. Ore Geology Reviews, 109, 545-563
Balan E., Créon L., Sanloup C., Aléon J., Blanchard M., Paulatto L., Bureau H. (2019) First-principles modeling of chlorine isotope fractionation between chloride-bearing molecules and minerals. Chemical Geology, 525, 424-434

2018

Le Pape P., Blanchard M., Juhin A., Rueff J-P., Ducher M., Morin G., Cabaret D. (2018) Local environment of arsenic in sulfide minerals: insight from high-resolution X-Ray spectroscopies, and fist-principle calculations at the As K-edge. Journal of Analytical Atomic Spectrometry, 33, 2070-2082
Balan E., Noireaux J., Mavromatis V., Saldi G., Montouillout V., Blanchard M., Pietrucci F., Gervais C., Rustad J.R., Schott J., Gaillardet J. (2018) Theoretical isotopic fractionation between structural boron in carbonates and aqueous boric acid and borate ion. Geochimica et Cosmochimica Acta. 222, 117-129
Crépisson C., Blanchard M., Lazzeri M., Balan E., Sanloup C. (2018) New constraints on Xe incorporation mechanisms in olivine from First-principles calculations. Geochimica et Cosmochimica Acta. 222, 146-155
Ducher M., Blanchard M., Balan E. (2018) Equilibrium isotopic fractionation between aqueous Zn and minerals from first-principles calculations. Chemical Geology, 483, 342-350
Blanchard M., Méheut M., Delon L., Poirier M., Micoud P., Le Roux C., Martin F. (2018) Infrared spectroscopic study of the synthetic Mg-Ni talc series. Physics and Chemistry of Minerals, 45, 843-854
Crépisson C., Sanloup C., Cormier L., Blanchard M., Hudspeth J., Rosa A.D., Mathon O., Irifune T. (2018) Kr environment in feldspathic glass and melt: a high pressure, high temperature X-ray absorption study. Chemical Geology, 493, 525-531

2017

Blanchard M., Balan E., Schauble E.A. (2017) Equilibrium fractionation of non-traditional isotopes: A molecular modeling perspective. Reviews in Mineralogy and Geochemistry « Non-traditional stable isotopes », 82, 27-63
Le Pape P., Blanchard M., Brest J., Boulliard J-C., Ikogou M., Stetten L., Wang S., Landrot G., Morin G. (2017) Arsenic incorporation in pyrite at ambient temperature at both tetrahedral S-I and octahedral Fe+II sites: evidence from EXAFS-DFT analysis. Environmental Science & Technology. 51, 150-158
Balan E., Blanchard M., Lazzeri M., Ingrin J. (2017) Theoretical Raman spectrum and anharmonicity of tetrahedral OH defects in hydrous forsterite. European Journal of Mineralogy, 29, 202-212
Blanchard M., Ingrin J., Balan E., Kovács I., Withers A.C. (2017) Effect of iron and trivalent cations on OH-defects in olivine. American Mineralogist, 102, 302-311
Balan E., Aufort J., Pouillé S., Dabos M., Blanchard M., Lazzeri M., Rollion-Bard C., Blamart D. (2016) Infrared spectroscopic study of sulfate-bearing calcite from deep-sea bamboo coral. European Journal of Mineralogy, 29, 397-408
Jiménez-Ruiz M., Ferrage E., Blanchard M., Fernandez-Castanon J., Delville A., Johnson M., Michot L. (2017) Combination of inelastic neutron scattering experiments and ab-initio quantum calculations for the study of the hydration properties of oriented saponites. The Journal of Physical Chemistry C. 121(9), 5029-5040.
Ducher M., Pietrucci F., Balan E., Ferlat G., Paulatto L., Blanchard M. (2017) Van der Waals contribution to the relative stability of aqueous Zn(2+) coordination states. Journal of Chemical Theory and Computation. 13(7), 3340-3347.
Aufort J., Ségalen L., Gervais C., Paulatto L., Blanchard M., Balan E. (2017) Site-specific equilibrium isotopic fractionation of oxygen, carbon and calcium in apatite. Geochimica et Cosmochimica Acta. 219, 57-73

2016

Ducher M., Blanchard M., Vantelon D., Nemausat R., Cabaret D. (2016) Probing the local environment of substitutional Al3+ in goethite using X-ray absorption spectroscopy and first-principles calculations. Physics and Chemistry of Minerals, 43, 217-227
Balan E., Pietrucci F., Gervais C., Blanchard M., Schott J., Gaillardet J. (2016) First-principles study of boron speciation in calcite and aragonite. Geochimica Cosmochimica Acta. 193, 119-131
Ducher M., Blanchard M., Balan E. (2016) Equilibrium zinc isotope fractionation in Zn-bearing minerals from first-principles calculations. Chemical Geology. 443, 87-93

2015

Blanchard M., Dauphas N., Hu M.Y., Roskosz M., Alp E.E., Golden D.C., Sio C.K., Tissot F.L.H., Zhao J., Gao L., Morris R.V., Fornace M., Floris A., Lazzeri M. & Balan E. (2015) Reduced partition function ratios of iron and oxygen in goethite. Geochimica Cosmochimica Acta, 151, 19-33
Pinilla C., Blanchard M., Balan E., Natarajan S. K., Vuilleumier R., Mauri F. (2015) Equilibrium magnesium isotope fractionation between aqueous Mg2+ and carbonate minerals: Insights from path integral molecular dynamics. Geochimica Cosmochimica Acta, 163, 126-139
Boulard E., Goncharov A., Blanchard M. & Mao W. (2015) Pressure-induced phase transition in MnCO3 and its implications on the deep carbon cycle. Journal of Geophysical Research: Solid Earth. 120, 4069-4079
Laporte S., Finocchi F., Paulatto L., Blanchard M., Balan E., Guyot F. & Saitta A. M. (2015) Strong electric fields at a prototypical oxide/water interface probed by ab initio molecular dynamics: MgO(001). Physical Chemistry Chemical Physics, 17, 20382-20390

Links

http://www.researcherid.com/rid/A-8698-2013
https://www.researchgate.net/profile/Marc_Blanchard

Projects

Research Grants & Projects

PI of the DARI i2016041519 project (Annual application for computing resources on national facilities, GENCI) « Ab initio calculation of vibrational and surface properties of crystals: Geophysical and geochemical implications ». Between 30 000 et 200 000 CPU hours obtained every year between 2008 and 2017.

PI of the ANR project (French national research agency) JCJC 11-JS56-001 « CrIMin »: Crystal-chemistry of iron-bearing minerals and implications in the geochemical cycling of metal pollutants. 2011-2014.

PI of the ECOS Nord project (Scientific cooperation with Colombia) « Computational modelong of Fe-S phase diagram, alloys stability and Fe equilibrium isotope fractionation at condition of planetary interiors ». 2017-2019

PI of the national INSU EC2CO project « Zn-Incorp: Zn incorporation in kaolinite and goethite, and its isotopic consequences ». 2017-2018

PI of the national INSU PNP project ISOPYR « δ56Fe in ancient ocean pyrite: signature of redox or reflection of trace element concentrations? ». 2020

Member of the national NEEDS project DARIUS « Multiscale diffusion of water and ions in unsaturated clays ». PI: Virginie Marry & Fabien Hubert, 2020-2026.

PI of the ANR project (French national research agency) PRC « PYRISOFE »: Composition isotopique du fer de la pyrite : Proxy de l’état rédox des océans ou de leur composition en éléments traces ? 2023-2026.

Marc Blanchard

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