Christophe Tournassat

Présentation

Christophe Tournassat is a Professor at the University of Orléans, France, and the Director of OSUC (Observatoire des Sciences de l'Univers en Région Centre-Val-de-Loire), which is the Earth and Space Sciences Observatory in Orléans. He is also a Visiting Faculty in the Energy Geosciences Division, Earth and Environmental Sciences Area at the Lawrence Berkeley National Laboratory, USA.Christophe Tournassat holds B.Sc. and M.Sc. degrees in Earth Sciences from the Ecole Normale Supérieure de Lyon, France, a Ph.D. in Environmental Geochemistry from the University of Grenoble, France, and an &quot;Habilitation à diriger des recherches&quot; in Geology from the University of Nantes, France. His scientific interest covers a range of topics from thermodynamics and kinetics of low-temperature water/solutes/rock interactions to multi-scale numerical modeling of retention and transfer processes in geological media. He co-develops, with Carl Steefel, the code CrunchODiTi, which can simulate coupled non-Fickian/non-Darcian transport together with reactive processes in nanoporous media. Christophe Tournassat is an associate editor of Geochimica et Cosmochimica Acta, and is a member of the editorial board of Applied Clay science. He is the 2023 recipient of the Marion L. and Chrystie M. Jackson Mid-Career Clay Scientist Award of the Clay Mineral Society.

Publications

Article dans une revue (100)

Acid─Base Reactivity at Mineral─Water Interfaces: A Viewpoint from Multiscale Simulations Pengyuan Gao,Yingchun Zhang,Xiancai Lu,Xiandong Liu,Jun Chenget al. Reviews in Mineralogy and Geochemistry, 2026, 91B, pp.323-341. ⟨10.2138/rmg.2026.91B.12⟩ Article dans une revue insu-05569780v1
Effect of water saturation on the diffusive transport of water and solutes in compacted kaolinite, illite and vermiculite Lucas Désert,Sébastien Savoye,Eric Ferrage,Fabien Hubert,Pierre Henocqet al. Applied Clay Science, 2025, 276, pp.107928. ⟨10.1016/j.clay.2025.107928⟩ Article dans une revue insu-05212963v1
Building confidence in models for complex barrier systems for radionuclides Dauren Sarsenbayev,Christophe Tournassat,Carl I Steefel,Haruko M Wainwright Proceedings of the National Academy of Sciences of the United States of America, 2025, 122 (27), ⟨10.1073/pnas.2511885122⟩ Article dans une revue insu-05143813v1
Probing the Redox Reactivity of a Reduced Nontronite: A Quick XAS Operando Study Léo Chevrier,Sylvain Grangeon,Anthony Beauvois,Eric Bourhis,Jan Filipet al. Environmental Science and Technology, 2025, ⟨10.1021/acs.est.4c10829⟩ Article dans une revue insu-04974315v1
Bridging the Gap between Molecular Simulations and Surface Complexation Modeling for Heterogeneous Surfaces: A Case Study with Uranium and Arsenic Adsorption on Clay Minerals Pengyuan Gao,Xiandong Liu,Zhijun Guo,Christophe Tournassat Environmental Science and Technology, 2024, 58 (51), pp.22733-22743. ⟨10.1021/acs.est.4c07338⟩ Article dans une revue insu-04866027v1
HTO and Selenate Diffusion Through Compacted Na-, Na-Ca-, and Ca-Montmorillonite Patricia M Fox,Christophe Tournassat,Carl Steefel,Peter S Nico Applied Geochemistry, 2024, 170, pp.106090. ⟨10.1016/j.apgeochem.2024.106090⟩ Article dans une revue insu-04649933v1
Structures of multinuclear U( vi ) species on the hydroxylated α-SiO 2 (001) surface: insights from DFT calculations Pengyuan Gao,Qiang Jin,Zongyuan Chen,Dongqi Wang,Christophe Tournassatet al. Physical Chemistry Chemical Physics, 2024, 26 (5), pp.4125-4134. ⟨10.1039/d3cp04941h⟩ Article dans une revue insu-04454401v1
Influence of salinity gradients on the diffusion of water and ionic species in dual porosity clay samples Emmanuel Tertre,Thomas Dabat,Jingyi Wang,Sébastien Savoye,Fabien Hubertet al. Journal of Contaminant Hydrology, 2024, pp.104357. ⟨10.1016/j.jconhyd.2024.104357⟩ Article dans une revue insu-04569499v2
An evaluation of the consistency of data and models for performance assessment: Divalent metal sorption on montmorillonite Esra Orucoglu,Sylvain Grangeon,Jean-Charles Robinet,Benoît Madé,Christophe Tournassat Applied Clay Science, 2024, 261, pp.107569. ⟨10.1016/j.clay.2024.107569⟩ Article dans une revue hal-04695176v1
eCoral: How Electrolysis Could Restore Seawater Conditions Ideal for Coral Reefs Eric W Lees,Christophe Tournassat,Adam Z Weber,Pupa U P A Gilbert Journal of Physical Chemistry Letters, 2024, 15 (49), pp.12206-12211. ⟨10.1021/acs.jpclett.4c02715⟩ Article dans une revue insu-04866090v1
Dimension reduction for uncertainty propagation and global sensitivity analyses of a cesium adsorption model Pierre Sochala,Christophe Chiaberge,Francis Claret,Christophe Tournassat Journal of computational science, 2024, 75, ⟨10.1016/j.jocs.2023.102197⟩ Article dans une revue insu-04357901v1
Preface of the Special Issue of Applied Clay Science “8th International Conference on Clays in Natural and Engineered Barriers for Radioactive Waste Confinement” Christophe Tournassat,Reiner Dohrmann,Jean-Charles Robinet,Marìa Victoria Villar Applied Clay Science, 2024, pp.107331. ⟨10.1016/j.clay.2024.107331⟩ Article dans une revue insu-04526101v1
Influence of Fe(II), Fe(III), and Al(III) isomorphic substitutions on acid-base properties of edge surfaces of cis-vacant montmorillonite: Insights from first-principles molecular dynamics simulations and surface complexation modeling Pengyuan Gao,Xiandong Liu,Zhijun Guo,Christophe Tournassat The American Mineralogist, 2024, 109, pp.1162-1170. ⟨10.2138/am-2023-9057⟩ Article dans une revue insu-04676497v1
Resolving experimental biases in the interpretation of diffusion experiments with a user-friendly numerical reactive transport approach Christophe Tournassat,Carl I Steefel,Patricia M Fox,Ruth M Tinnacher Scientific Reports, 2023, 13 (1), pp.15029. ⟨10.1038/s41598-023-42260-5⟩ Article dans une revue insu-04910993v1
Acid–Base Properties of Cis-Vacant Montmorillonite Edge Surfaces: A Combined First-Principles Molecular Dynamics and Surface Complexation Modeling Approach Pengyuan Gao,Xiandong Liu,Zhijun Guo,Christophe Tournassat Environmental Science and Technology, 2023, 57 (3), pp.1342-1352. ⟨10.1021/acs.est.2c07171⟩ Article dans une revue insu-04911145v1
Mössbauer spectrometry insights into the redox reactivity of Fe-bearing phases in the environment Laurent Charlet,Jean-Marc Grenèche,Christophe Tournassat,Paul Wersin,Antoine Géhinet al. Journal of Materials Research, 2023, 38 (4), pp.958-973. ⟨10.1557/s43578-022-00823-8⟩ Article dans une revue insu-04027115v1
Reactive transport modelling with a coupled OpenFOAM ® -PHREEQC platform Saideep Pavuluri,Christophe Tournassat,Francis Claret,Cyprien Soulaine Transport in Porous Media, 2022, 145, pp.475-504. ⟨10.1007/s11242-022-01860-x⟩ Article dans une revue insu-03822527v1
Uncertainty propagation in pore water chemical composition calculation using surrogate models Pierre Sochala,Christophe Chiaberge,Francis Claret,Christophe Tournassat Scientific Reports, 2022, 12 (1), pp.15077. ⟨10.1038/s41598-022-18411-5⟩ Article dans une revue hal-03779374v1
Influence of Water Saturation Level on Electrical Double Layer Properties in a Clay Mineral Mesopore: A Molecular Dynamics Study Sébastien Le Crom,Christophe Tournassat,Jean-Charles Robinet,Virginie Marry Journal of Physical Chemistry C, 2022, 126 (1), pp.647-654. ⟨10.1021/acs.jpcc.1c08637⟩ Article dans une revue hal-03516885v1
Molecular-level understanding of metal ion retention in clay-rich materials Xiandong Liu,Christophe Tournassat,Sylvain Grangeon,Andrey Kalinichev,Yoshio Takahashiet al. Nature Reviews Earth & Environment, 2022, 3, pp.461-476. ⟨10.1038/s43017-022-00301-z⟩ Article dans une revue insu-03714436v1
Competitive Adsorption Processes at Clay Mineral Surfaces: A Coupled Experimental and Modeling Approach Esra Orucoglu,Sylvain Grangeon,Alexandre Gloter,Jean-Charles Robinet,Benoît Madéet al. ACS Earth and Space Chemistry, 2022, 6 (1), pp.144-159. ⟨10.1021/acsearthspacechem.1c00323⟩ Article dans une revue insu-03568014v1
Modeling diffusion processes in the presence of a diffuse layer at charged mineral surfaces: a benchmark exercise Christophe Tournassat,Carl Steefel Computational Geosciences, 2021, 25 (4), pp.1319-1336. ⟨10.1007/s10596-019-09845-4⟩ Article dans une revue insu-02280189v1
A Pore‐Scale Investigation of Mineral Precipitation Driven Diffusivity Change at the Column‐Scale Hang Deng,Christophe Tournassat,S. Molins,F. Claret,C. I Steefel Water Resources Research, 2021, 57 (5), pp.e2020WR028483. ⟨10.1029/2020WR028483⟩ Article dans une revue insu-03207694v2
A model for discrete fracture-clay rock interaction incorporating electrostatic effects on transport Carl I. Steefel,Christophe Tournassat Computational Geosciences, 2021, 25, pp.395-410. ⟨10.1007/s10596-020-10012-3⟩ Article dans une revue insu-03008871v1
porousMedia4Foam: Multi-scale open-source platform for hydro-geochemical simulations with OpenFOAM® Cyprien Soulaine,Saideep Pavuluri,Francis Claret,Christophe Tournassat Environmental Modelling and Software, 2021, 145, pp.105199. ⟨10.1016/j.envsoft.2021.105199⟩ Article dans une revue insu-03346087v2
Mechanistic and Thermodynamic Insights into Anion Exchange by Green Rust Myriam I Agnel,Sylvain Grangeon,François Fauth,Erik Elkaim,Francis Claretet al. Environmental Science and Technology, 2020, 54 (2), pp.851-861. ⟨10.1021/acs.est.9b05632⟩ Article dans une revue hal-02488822v1
Identification of montmorillonite particle edge orientations by atomic-force microscopy Sergey Kraevsky,Christophe Tournassat,Marylène Vayer,Fabienne Warmont,Sylvain Grangeonet al. Applied Clay Science, 2020, 186, 105442 (8 p.). ⟨10.1016/j.clay.2020.105442⟩ Article dans une revue insu-02476314v1
Influence of Polarizability on the Prediction of the Electrical Double Layer Structure in a Clay Mesopore: A Molecular Dynamics Study Sébastien Le Crom,Christophe Tournassat,Jean-Charles Robinet,Virginie Marry Journal of Physical Chemistry C, 2020, 124 (11), pp.6221-6232. ⟨10.1021/acs.jpcc.0c00190⟩ Article dans une revue hal-02875380v1
Solving the Nernst‐Planck Equation in Heterogeneous Porous Media with Finite Volume Methods: Averaging Approaches at Interfaces Christophe Tournassat,Carl Steefel,Thomas Gimmi Water Resources Research, 2020, 56 (3), pp.e2019WR026832. ⟨10.1029/2019WR026832⟩ Article dans une revue insu-02496420v1
Preface to Multiscale Simulation in Geochemistry Xiandong Liu,Christophe Tournassat,Carl I. Steefel Geochimica et Cosmochimica Acta, 2020, 291, pp.1-4. ⟨10.1016/j.gca.2020.09.011⟩ Article dans une revue insu-02942528v1
Reactive Transport Modeling of Coupled Processes in Nanoporous Media Christophe Tournassat,Carl Steefel Reviews in Mineralogy and Geochemistry, 2019, 85 (1), pp.75-109. ⟨10.2138/rmg.2019.85.4⟩ Article dans une revue insu-03335698v1
A Deep Alteration and Oxidation Profile in a Shallow Clay Aquitard: Example of the Tégulines Clay, East Paris Basin, France Catherine Lerouge,Jean-Charles Robinet,Mathieu Debure,Christophe Tournassat,Alain Bouchetet al. Geofluids, 2018, 2018, pp.1 - 20. ⟨10.1155/2018/1606753⟩ Article dans une revue insu-01719398v1
Weathering of an argillaceous rock in the presence of atmospheric conditions: A flow-through experiment and modelling study Nicolas C.M. Marty,Adeline Lach,Catherine Lerouge,Sylvain Grangeon,Francis Claretet al. Applied Geochemistry, 2018, 96, pp.252-263. ⟨10.1016/j.apgeochem.2018.07.005⟩ Article dans une revue istex insu-02356015v1
Modeling uranium(VI) adsorption onto montmorillonite under varying carbo- nate concentrations: A surface complexation model accounting for the spillover effect on surface potential Christophe Tournassat,R.M. M Tinnacher,Sylvain Grangeon,J.A. A Davis Geochimica et Cosmochimica Acta, 2018, 220, pp.291-308. ⟨10.1016/j.gca.2017.09.049⟩ Article dans une revue insu-01614123v2
Retention of arsenic, chromium and boron on an outcropping clay-rich rock formation (the Tégulines Clay, eastern France) Mathieu Debure,Christophe Tournassat,Catherine Lerouge,Benoît Made,Jean-Charles Robinetet al. Science of the Total Environment, 2018, 642, pp.216-229. ⟨10.1016/j.scitotenv.2018.06.037⟩ Article dans une revue insu-01817676v1
Mechanistic Understanding of Uranyl Ion Complexation on Montmorillonite Edges: A Combined First-Principles Molecular Dynamics–Surface Complexation Modeling Approach Chi Zhang,Xiandong Liu,Ruth Tinnacher,Christophe Tournassat Environmental Science and Technology, 2018, 52 (15), pp.8501 - 8509. ⟨10.1021/acs.est.8b02504⟩ Article dans une revue insu-01868517v1
Selenite Uptake by Ca–Al LDH: A Description of Intercalated Anion Coordination Geometries Bin Ma,Alejandro Fernandez-Martinez,Sylvain Grangeon,Christophe Tournassat,Nathaniel Findlinget al. Environmental Science and Technology, 2018, 52 (3), pp.1624 - 1632. ⟨10.1021/acs.est.7b04644⟩ Article dans une revue insu-01882419v1
Thermodynamic and crystallographic model for anion uptake by hydrated calcium aluminate (AFm): an example of molybdenum Nicolas C.M. Marty,Sylvain Grangeon,Erik Elkaim,Christophe Tournassat,Clémence Fauchetet al. Scientific Reports, 2018, 8, pp.7943. ⟨10.1038/s41598-018-26211-z⟩ Article dans une revue insu-01817891v1
From experimental variability to the sorption related retention parameters necessary for performance assessment models for nuclear waste disposal systems: The example of Pb adsorption on clay minerals Esra Orucoglu,Christophe Tournassat,Jean-Charles Robinet,Benoît Made,Mélanie Lundy Applied Clay Science, 2018, 163, pp.20 - 32. ⟨10.1016/j.clay.2018.07.003⟩ Article dans une revue insu-01857042v1
Deciphering mineralogical changes and carbonation development during hydration and ageing of a consolidated ternary blended cement paste Francis Claret,Sylvain Grangeon,Annick Loschetter,Christophe Tournassat,Wout de Nolfet al. International Union of Crystallography journal, 2018, 5 (2), pp.150 - 157. ⟨10.1107/S205225251701836X⟩ Article dans une revue insu-01766385v1
Effects of a thermal perturbation on mineralogy and pore water composition in a clay-rock: an experimental and modeling study Hélène Gailhanou,Catherine Lerouge,Mathieu Debure,Stéphane Gaboreau,Eric C. Gaucheret al. Geochimica et Cosmochimica Acta, 2017, 197, pp.193-214. ⟨10.1016/j.gca.2016.10.004⟩ Article dans une revue insu-01387039v2
Nucleation and growth of feitknechtite from nanocrystalline vernadite precursor Sylvain Grangeon,Fabienne Warmont,Christophe Tournassat,Bruno Lanson,Martine Lansonet al. European Journal of Mineralogy, 2017, 29, pp.767-776. ⟨10.1127/ejm/2017/0029-2665⟩ Article dans une revue insu-01598457v1
Evidence of Multiple Sorption Modes in Layered Double Hydroxides Using Mo As Structural Probe Bin Ma,Alejandro Fernandez-Martinez,Sylvain Grangeon,Christophe Tournassat,Nathaniel Findlinget al. Environmental Science and Technology, 2017, 51 (10), pp.5531 - 5540. ⟨10.1021/acs.est.7b00946⟩ Article dans une revue hal-01849363v1
Quantitative mineralogical mapping of hydrated low pH concrete Stéphane Gaboreau,Dimitri Pret,Valerie Montouillout,Pierre Henocq,Jean-Charles Robinetet al. Cement and Concrete Composites, 2017, 83, pp.360 - 373. ⟨10.1016/j.cemconcomp.2017.08.003⟩ Article dans une revue istex hal-01619711v1
Spectral induced polarization of Na-montmorillonite dispersions Philippe Leroy,Maximilian Weigand,Guillaume Mériguet,Egon Zimmermann,Christophe Tournassatet al. Journal of Colloid and Interface Science, 2017, 505, pp.1093-1110. ⟨10.1016/j.jcis.2017.06.071⟩ Article dans une revue insu-01546901v1
Stern Layer Structure and Energetics at Mica–Water Interfaces Ian C. Bourg,Sang Soo Lee,Paul Fenter,Christophe Tournassat Journal of Physical Chemistry C, 2017, 121 (17), pp.9402 - 9412. ⟨10.1021/acs.jpcc.7b01828⟩ Article dans une revue insu-01580064v1
In-situ determination of the kinetics and mechanisms of nickel adsorption by nanocrystalline vernadite Sylvain Grangeon,Alejandro Fernandez-Martinez,Francis Claret,Nicolas C.M. Marty,Christophe Tournassatet al. Chemical Geology, 2017, 459, pp.24 - 31. ⟨10.1016/j.chemgeo.2017.03.035⟩ Article dans une revue hal-01849472v1
Effect of trace elements on carbonate thermodynamic constants Mathieu Debure,German Montes-Hernandez,Catherine Lerouge,Benoit Madé,Christophe Tournassat Procedia Earth and Planetary Science, 2017, 17, pp.730-733. ⟨10.1016/j.proeps.2016.12.185⟩ Article dans une revue hal-01333901v1
Role of carbonate minerals in the distribution of trace elements in marine clay formations Catherine Lerouge,Karine David,Francis Claret,Mathieu Debure,Sylvain Grangeonet al. Procedia Earth and Planetary Science, 2017, 17, pp.798-801. ⟨10.1016/j.proeps.2017.01.043⟩ Article dans une revue hal-01334149v1
Pitfalls in using the hexaamminecobalt method for cation exchange capacity measurements on clay minerals and clay-rocks: Redox interferences between the cationic dye and the sample. Jebril Hadi,Christophe Tournassat,Catherine Lerouge Applied Clay Science, 2016, 119 (1), ⟨10.1016/j.clay.2015.03.017⟩ Article dans une revue istex hal-01269877v1
Molecular dynamics simulations of anion exclusion in clay interlayer nanopores. Christophe Tournassat,Ian C. Bourg,Michael Holmboe,Garrison Sposito,Carl I. Steefel Clays and Clay Minerals, 2016, 4, pp.374-388. ⟨10.1346/CCMN.2016.0640403⟩ Article dans une revue insu-01406301v1
Ion adsorption and diffusion in smectite : molecular, pore, and continuum scale views Ruth M. Tinnacher,Michael Holmboe,Christophe Tournassat,Ian C. Bourg,James A. Davis Geochimica et Cosmochimica Acta, 2016, 177, pp.130-149. ⟨10.1016/j.gca.2015.12.010⟩ Article dans une revue hal-01368176v1
Modeling the Acid-Base Properties of Montmorillonite Edge Surfaces Christophe Tournassat,James A Davis,Christophe Chiaberge,Sylvain Grangeon,Ian C. Bourg Environmental Science and Technology, 2016, 50 (24), pp.13436-13445. ⟨10.1021/acs.est.6b04677⟩ Article dans une revue insu-01415340v1
The influence of natural trace element distribution on the mobility of radionuclides. The exemple of nickel in a clay-rock Sylvain Grangeon,Agnès Vinsot,Christophe Tournassat,Catherine Lerouge,Eric Giffautet al. Applied Geochemistry, 2015, 52, pp.155-173. ⟨10.1016/j.apgeochem.2014.11.009⟩ Article dans une revue istex hal-01192891v1
Benchmark reactive transport simulations of a column experiment in compacted bentonite with multispecies diffusion and explicit treatment of electrostatic effects Peter Alt-Epping,Christophe Tournassat,P. Rasouli,C. I. Steefel,K. U. Mayeret al. Computational Geosciences, 2015, 19 (3), pp.535-550. ⟨10.1007/s10596-014-9451-x⟩ Article dans une revue hal-01192890v1
A database of dissolution and precipitation rates for clay-rocks minerals Nicolas C.M. Marty,Francis Claret,Arnault Lassin,Joachim Tremosa,Philippe Blancet al. Applied Geochemistry, 2015, 55, pp.108-118. ⟨10.1016/j.apgeochem.2014.10.012⟩ Article dans une revue istex hal-01355409v1
Ionic Transport in Nano-Porous Clays with Consideration of Electrostatic Effects Christophe Tournassat,Carl I. Steefel Reviews in Mineralogy and Geochemistry, 2015, 80, pp.287-330. ⟨10.2138/rmg.2015.80.09⟩ Article dans une revue hal-01269893v1
Identification of nanocrystalline goethite in reduced clay formations: Application to the Callovian-Oxfordian formation of Bure (France) Myriam Kars,Catherine Lerouge,Sylvain Grangeon,Charles Aubourg,Christophe Tournassatet al. The American Mineralogist, 2015, 100 (7), ⟨10.2138/am-2015-5096⟩ Article dans une revue hal-01269885v1
The electrophoretic mobility of montmorillonite. Zeta potential and surface conductivity effects Philippe Leroy,Christophe Tournassat,Olivier Bernard,Nicolas Devau,Mohamed Azaroual Journal of Colloid and Interface Science, 2015, 451, pp.21-39. ⟨10.1016/j.jcis.2015.03.047⟩ Article dans une revue istex hal-01269931v1
Complete restriction of 36Cl-diffusion by celestite precipitation in densely compacted illite Aurélie Chagneau,Christophe Tournassat,Carl I. Steefel,Ian C. Bourg,Stéphane Gaboreauet al. Environmental Science and Technology Letters, 2015, 2 (5), pp.139-143. ⟨10.1021/acs.estlett.5b00080⟩ Article dans une revue hal-01269920v1
Simulation of Cement/Clay Interactions: Feedback on the Increasing Complexity of Modelling Strategies Nicolas C.M. Marty,Isabelle Munier,Eric C. Gaucher,Christophe Tournassat,Stéphane Gaboreauet al. Transport in Porous Media, 2014, 104 (2), pp.385-405. ⟨10.1007/s11242-014-0340-5⟩ Article dans une revue hal-01176615v1
Key factors to understand in-situ behavior of Cs in Callovo-Oxfordian clay rock Z. Chen,Gilles F Montavon,Solange Ribet,Z. Guo,J.C. Robinetet al. Chemical Geology, 2014, 387, pp.47-58. ⟨10.1016/j.chemgeo.2014.08.008⟩ Article dans une revue in2p3-01154526v1
Constraints from sulfur isotopes on the origin of gypsum at concrete/claystone interfaces Catherine Lerouge,Francis Claret,Christophe Tournassat,Sylvain Grangeon,Stéphane Gaboreauet al. Physics and Chemistry of the Earth. Parts A/B/C, 2014, 70-71, pp.84-95. ⟨10.1016/j.pce.2014.01.003⟩ Article dans une revue istex hal-01055790v1
Applying the squeezing technique to highly consolidated clayrocks for pore water characterisation: Lessons learned from experiments at the Mont Terri Rock Laboratory A.M. Fernandez,D.M. Sánchez-Ledesma,Christophe Tournassat,A. Melón,Eric C. Gaucher Applied Geochemistry, 2014, 49, pp.2-21. ⟨10.1016/j.apgeochem.2014.07.003⟩ Article dans une revue istex hal-01172036v1
Modeling specific pH dependent sorption of divalent metals on montmorillonite surfaces. A review of pitfalls, recent achievements and current challenges Christophe Tournassat,Sylvain Grangeon,Philippe Leroy,E. Giffaut American journal of science, 2013, 313 (5), pp.395-451. ⟨10.2475/05.2013.01⟩ Article dans une revue hal-01027680v1
Modelling CEC variations versus structural iron reduction levels in dioctahedral smectites. Existing approaches, new data and model refinements Jebril Hadi,Christophe Tournassat,Ioannis Ignatiadis,Jean-Marc Greneche,Laurent Charlet Journal of Colloid and Interface Science, 2013, 407, pp.397-409. ⟨10.1016/j.jcis.2013.05.014⟩ Article dans une revue istex hal-01024553v1
Caesium uptake by Callovian-Oxfordian clayrock under alkaline perturbation Stéphane Gaboreau,Francis Claret,Catherine Crouzet,Eric Giffaut,Christophe Tournassat Applied Geochemistry, 2012, 27 (6), pp.1194-1201. ⟨10.1016/j.apgeochem.2012.02.002⟩ Article dans une revue istex hal-00861257v1
Geochemical characterization and modelling of the Toarcian/Domerian porewater at the Tournemire underground research laboratory J. Tremosa,D. Arcos,J.M. Matray,F. Bensenouci,Eric C. Gaucheret al. Applied Geochemistry, 2012, 27 (7), pp.1417-1431. ⟨10.1016/j.apgeochem.2012.01.005⟩ Article dans une revue istex hal-00675192v1
Diffusion-driven transport in clayrock formations Scott Altmann,Christophe Tournassat,Goutelard Florence,J.C. Parneix,Thomas Gimmiet al. Applied Geochemistry, 2012, 27, pp.463-478. ⟨10.1016/j.apgeochem.2011.09.015⟩ Article dans une revue istex hal-00664227v1
Influence of montmorillonite tactoid size on Na-Ca cation exchange reactions. Christophe Tournassat,Mohamed Bizi,Gilles Braibant,Catherine Crouzet Journal of Colloid and Interface Science, 2011, 15 (2), pp.443-454. ⟨10.1016/j.jcis.2011.07.039⟩ Article dans une revue hal-00664233v1
Mineralogical and isotopic record of biotic and abiotic diagenesis of the Callovian-Oxfordian clayey formation of Bure (France) Catherine Lerouge,S. Grangeon,Eric C. Gaucher,Christophe Tournassat,Pierre Agrinieret al. Geochimica et Cosmochimica Acta, 2011, 75 (10), pp.2633-2663. ⟨10.1016/j.gca.2011.02.025⟩ Article dans une revue insu-00587526v1
Dissolution kinetics of synthetic Na-smectite. An integrated experimental approach Nicolas C.M. Marty,Jordi Cama,Tsutomo Sato,Daisuke Chino,Frédéric Villiéraset al. Geochimica et Cosmochimica Acta, 2011, 75 (20), pp.5849-5864. ⟨10.1016/j.gca.2011.06.037⟩ Article dans une revue istex hal-00665321v1
Pb(II) and Zn(II) adsorption onto Na- and Ca-montmorillonites in acetic acid/acetate medium: Experimental approach and geochemical modelling Mariem Ghayaza,Lydie Le Forestier,Fabrice Muller,Christophe Tournassat,Jean-Michel Bény Journal of Colloid and Interface Science, 2011, 361, pp.238-246. ⟨10.1016/j.jcis.2011.05.028⟩ Article dans une revue insu-00595248v1
Biogeochemical Processes in a Clay Formation In-Situ Experiment: Part E - Equilibrium Controls on Chemistry of Pore Water from the Opalinus Clay, Mont Terri Underground Research Laboratory, Switzerland F.J. Pearson,Christophe Tournassat,Eric C. Gaucher Applied Geochemistry, 2011, 26, pp.990-1008. ⟨10.1016/j.apgeochem.2011.03.008⟩ Article dans une revue hal-00597132v1
Modelling approaches for anion-exclusion in compacted Na-bentonite Christophe Tournassat,C. A. J. Appelo Geochimica et Cosmochimica Acta, 2011, 75 (13), pp.3698-3710. ⟨10.1016/j.gca.2011.04.001⟩ Article dans une revue hal-00597084v1
Metal speciation in landfill leachates with a focus on the influence of organic matter Francis Claret,Christophe Tournassat,Catherine Crouzet,Eric C. Gaucher,Thorsten Schäferet al. Waste Management, 2011, 31 (9-10), pp.2036-2045. ⟨10.1016/j.wasman.2011.05.014⟩ Article dans une revue hal-00605888v1
Biogeochemical processes in a clay formation in situ experiment: Part F - Reactive transport modelling Christophe Tournassat,Peter Alt-Epping,Eric C. Gaucher,Thomas Gimmi,O.X. Leupinet al. Applied Geochemistry, 2011, 26, pp.1009-1022. ⟨10.1016/j.apgeochem.2011.03.009⟩ Article dans une revue hal-00597122v1
Biogeochemical processes in a clay formation in situ experiment: Part G - Key interpretations and conclusions. Implications for repository safety Paul Wersin,S. Stroes-Gascoyne,F.J. Pearson,Christophe Tournassat,O.X. Leupinet al. Applied Geochemistry, 2011, 26, pp.1023-1034. ⟨10.1016/j.apgeochem.2011.03.010⟩ Article dans une revue hal-00597107v1
Influence of surface conductivity on the apparent zeta potential of TiO2 nanoparticles Philippe Leroy,Christophe Tournassat,Mohamed Bizi Journal of Colloid and Interface Science, 2011, 356 (2), pp.442-453. ⟨10.1016/j.jcis.2011.01.016⟩ Article dans une revue hal-00600299v1
Natural iodine in a clay formation: Implications for iodine fate in geological disposals Francis Claret,Catherine Lerouge,Thierry Laurioux,Mohamed Bizi,Thibauld Conteet al. Geochimica et Cosmochimica Acta, 2010, 74 (1), pp.16-29. ⟨10.1016/j.gca.2009.09.030⟩ Article dans une revue hal-00563956v1
Strontium distribution and origins in a natural clayey formation (Callovian-Oxfordian, Paris Basin, France): A new sequential extraction procedure Catherine Lerouge,Eric C. Gaucher,Christophe Tournassat,Philippe Négrel,Catherine Crouzetet al. Geochimica et Cosmochimica Acta, 2010, 74 (10), p. 2926-2942. ⟨10.1016/j.gca.2010.02.013⟩ Article dans une revue hal-00552939v1
Cation Exchange Selectivity Coeffi cient Values on Smectite and Mixed-Layer Illite/Smectite Minerals Christophe Tournassat,Hélène Gailhanou,Catherine Crouzet,Gilles Braibant,Anne Gautieret al. Soil Science Society of America Journal, 2009, 73 (3), p. 928-942. ⟨10.2136/sssaj2008.0285⟩ Article dans une revue hal-00514039v1
A robust model for pore-water chemistry of clayrock Eric C. Gaucher,Christophe Tournassat,F.J. Pearson,Philippe Blanc,Catherine Crouzetet al. Geochimica et Cosmochimica Acta, 2009, 73 (21), p.6470-6483. ⟨10.1016/j.gca.2009.07.021⟩ Article dans une revue istex hal-00512606v1
Comparison of molecular dynamics simulations with triple layer and modified Gouy-Chapman models in a 0.1 M NaCl-montmorillonite system Christophe Tournassat,Yves Chapron,Philippe Leroy,Mohamed Bizi,Faïza Boulahya Journal of Colloid and Interface Science, 2009, 339 (2), p. 533-541. ⟨10.1016/j.jcis.2009.06.051⟩ Article dans une revue hal-00514041v1
Influence of reaction kinetics and mesh refinement on the numerical modelling of concrete/clay interactions Nicolas C.M. Marty,Christophe Tournassat,André Burnol,Eric Giffaut,Eric C. Gaucher Journal of Hydrology, 2009, 364 (1-2), p. 58-72. ⟨10.1016/j.jhydrol.2008.10.013⟩ Article dans une revue istex hal-00512711v1
Porosities accessible to HTO and iodide on water-saturated compacted clay materials and relation with the forms of water: A low field proton NMR study Gilles F Montavon,Z. Guo,Christophe Tournassat,Bernd Grambow,Didier Le Botlan Geochimica et Cosmochimica Acta, 2009, 73 (24), pp.7290-7302. ⟨10.1016/j.gca.2009.09.014⟩ Article dans une revue hal-00450881v1
Na+ and HTO diffusion in compacted bentonite: Effect of surface chemistry and related texture T. Melkior,Eric C. Gaucher,C. Brouard,S. Yahiaoui,D. Thobyet al. Journal of Hydrology, 2009, 370 (1-4), p. 9-20. ⟨10.1016/j.jhydrol.2009.02.035⟩ Article dans une revue istex hal-00512714v1
Cation exchanged Fe(II) and Sr compared to other divalent cations (Ca, Mg) in the Bure Callovian-Oxfordian formation. Implications for porewater composition modelling. Christophe Tournassat,Catherine Lerouge,Philippe Blanc,Jocelyne Brendle,Jean-Marc Grenecheet al. Applied Geochemistry, 2008, 23 (4), pp.641-654. ⟨10.1016/j.apgeochem.2007.11.002⟩ Article dans une revue hal-00597171v1
Electron transfer at the mineral/water interface: Selenium reduction by ferrous iron sorbed on clay L. Charlet,A.C. Scheinost,Christophe Tournassat,Jean-Marc Greneche,A. Géhinet al. Geochimica et Cosmochimica Acta, 2007, 71 (23), pp.5731-5749. ⟨10.1016/j.gca.2007.08.024⟩ Article dans une revue hal-00261713v1
Modeling the composition of the pore water in a clay-rock geological formation (Callovo-Oxfordian, France) Philippe Leroy,André Revil,Scott Altmann,Christophe Tournassat Geochimica et Cosmochimica Acta, 2007, 71 (5), pp.1087 à 1097. ⟨10.1016/j.gca.2006.11.009⟩ Article dans une revue istex insu-00404284v1
Reversible surface-sorption-induced electron-transfer oxidation of Fe(II) at reactive sites on a synthetic clay mineral A. Gehin,Jean-Marc Greneche,Christophe Tournassat,Jocelyne Brendle,Denis G. Rancourtet al. Geochimica et Cosmochimica Acta, 2007, 71 (4), pp.863-876. ⟨10.1016/j.gca.2006.10.019⟩ Article dans une revue istex hal-00597192v1
On the mobility and potential retention of iodine in the Callovovian-Oxfordian formation Christophe Tournassat,Eric C. Gaucher,M. Fattahi,Bernd Grambow Physics and Chemistry of the Earth. Parts A/B/C, 2007, 32, pp.539-551. ⟨10.1016/j.pce.2005.12.004⟩ Article dans une revue hal-00597205v1
Two cation exchange models for direct and inverse modelling of solution major cation composition in equilibrium with illite surfaces Christophe Tournassat,Hélène Gailhanou,Catherine Crouzet,Gilles Braibant,Anne Gautieret al. Geochimica et Cosmochimica Acta, 2007, 71 (5), pp.1098-1114. ⟨10.1016/j.gca.2006.11.018⟩ Article dans une revue hal-00597198v1
Modelling the porewater chemistry of the Callovian-Oxfordian formation at a regional scale Eric C. Gaucher,Philippe Blanc,Frédérique Bardot,Gilles Braibant,Stéphane Buschaertet al. Comptes Rendus. Géoscience, 2006, 338, pp.917-930. ⟨10.1016/j.crte.2006.06.002⟩ Article dans une revue hal-00664798v1
Fe(II)-Na(I)-Ca(II) cation exchange on montmorillonite in chloride medium: Evidence for preferential clay adsorption of chloride - Metal ion pairs in seawater. Laurent Charlet,Christophe Tournassat Aquatic Geochemistry, 2005, 11 (2), pp.115-137. ⟨10.1007/s10498-004-1166-5⟩ Article dans une revue istex hal-00109237v1
Influence of pH on the interlayer cationic composition and hydration state of Ca-montmorillonite: analytical chemistry, chemical modelling and XRD profile modelling study. Eric Ferrage,Christophe Tournassat,Emmanuel Rinnert,Bruno Lanson Geochimica et Cosmochimica Acta, 2005, 69, pp.2797-2812. ⟨10.1016/j.gca.2004.12.008⟩ Article dans une revue hal-00106998v1
Experimental evidence for calcium-chloride ion pairs in the interlayer of montmorillonite. A XRD profile modeling approach. Eric Ferrage,Christophe Tournassat,Emmanuel Rinnert,Laurent Charlet,Bruno Lanson Clays and Clay Minerals, 2005, 53, pp.348-360. ⟨10.1346/CCMN.2005.0530403⟩ Article dans une revue hal-00105762v1
Redox potential measurements and Mössbauer spectrometry of FeII adsorbed onto FeIII (oxyhydr)oxides Ewen Silvester,Laurent Charlet,Christophe Tournassat,Antoine Gehin,Jean-Marc Grenecheet al. Geochimica et Cosmochimica Acta, 2005, 69 (20), pp.4801-4815. ⟨10.1016/j.gca.2005.06.013⟩ Article dans une revue istex hal-00597392v1
The titration of clay minerals I. Discontinuous backtitration technique combined with CEC measurements. Christophe Tournassat,Jean-Marc Greneche,Delphine Tisserand,Laurent Charlet Journal of Colloid and Interface Science, 2004, 273 (1), pp.224-233. ⟨10.1016/j.jcis.2003.11.021⟩ Article dans une revue istex hal-00109236v1
The titration of clay minerals II. Structure-based model and implications for clay reactivity. Christophe Tournassat,Eric Ferrage,Christiane Poinsignon,Laurent Charlet Journal of Colloid and Interface Science, 2004, 273 (1), pp.234-246. ⟨10.1016/j.jcis.2003.11.022⟩ Article dans une revue istex hal-00109235v1

Ouvrages (2)

Reactive Transport in Natural and Engineered Systems Jennifer Druhan,Christophe Tournassat 85, 2019, ⟨10.1515/9781501512001⟩ Ouvrages insu-03173324v1
Natural and engineered clay barriers Christophe Tournassat,Carl I. Steefel,Ian C. Bourg,Faiza Bergaya Christophe Tournassat; Carl I. Steefel; Ian C. Bourg; Faiza Bergaya. Elsevier, 6, 432 p., 2015, Developments in clay science, 9780081000274 Ouvrages hal-01269869v1

Chapitre d'ouvrage (3)

Modeling the long-term stability of multi-barrier systems for radioactive waste disposal in geological clay formations Francis Claret,Nicolas C.M. Marty,Mathieu Debure,Yannick Linard,Christophe Tournassat Yitian Xiao; Fiona Whitaker; Tianfu Xu; Carl Steefel. Reactive Transport Modeling: Applications in Subsurface Energy and Environmental Problems, , pp.CHAPTER 8, 2018, 9781119060000. ⟨10.1002/9781119060031.ch8⟩ Chapitre d'ouvrage hal-01897591v1
Impact of microstructure on anion exclusion in compacted clay media Christophe Tournassat,Stéphane Gaboreau,Jean-Charles Robinet,Ian C. Bourg,Carl I. Steefel Thorsten Schäfer; Reiner Dohrmann; H.C. Greenwell. The Clay Minerals Society Workshop Lectures Series, 21, pp.137-149, 2016, FILLING THE GAPS – FROM MICROSCOPIC PORE STRUCTURES TO TRANSPORT PROPERTIES IN SHALES, ⟨10.1346/CMS-WLS-21.11⟩ Chapitre d'ouvrage hal-01368169v1
Reactivity of bentonite : an additive model applied to uranyl sorption Mariette Wolthers,Laurent Charlet,Christophe Tournassat J. Lützenkirchen. Surface complexation modelling, Elsevier, pp.539-552, 2006, Interface Science and Technology, ⟨10.1016/S1573-4285(06)80064-5⟩ Chapitre d'ouvrage hal-00597245v1

Thèse (1)

Interactions cations - argiles : le cas du Fe(II). Application au contexte de stockage profond des déchets radioactifs Christophe Tournassat Ingénierie de l'environnement. Université Joseph-Fourier - Grenoble I, 2003. Français. ⟨NNT : ⟩ Thèse tel-00710111v1

Communication dans un congrès (73)

Multiscale experimental comparison of water diffusion by neutron tomography in a porous clay medium partially water-saturated Lucas Désert,Sébastien Savoye,Éric Ferrage,Emmanuel Tertre,Alessandro Tengattiniet al. 9th Clay Conference : International Conference on Clays in Natural and Engineered Barriers for Radioactive Waste Confinement, Nov 2025, Hannover, Germany Communication dans un congrès hal-05570318v1
The role of explicit polarizability in molecular modeling of clay-water interfaces across hydration states Sébastien Le Crom,Christophe Tournassat,Jean-Charles Robinet,Virginie Marry CECAM International Symposium "Molecular modeling in soil science – achievements and perspectives", Sep 2025, Vienna, Austria Communication dans un congrès hal-05474656v1
Reactive transport models are cornerstone tools for optimizing the phytostabilization management of mining residues Nicolas Devau,Hugues Thouin,Samuel Mertz,Ulysse Moreau,Lydie Le Forestieret al. AQUACONSOIL, Jun 2025, Liège, Belgium Communication dans un congrès hal-05101456v1
Dynamique du front de diffusion de l'eau dans une illite désaturée en eau : Mesure par tomographie de neutrons et modélisation associée Lucas Désert,Sébastien Savoye,Emmanuel Tertre,Arnaud Mazurier,Alessandro Tengattiniet al. GAF 2025, Jun 2025, Limoges, France Communication dans un congrès hal-05570249v1
Selenate uptake by green rust Sylvain Grangeon,Esra Orucoglu,Jean-Marc Greneche,Eric Bourhis,Fabienne Warmontet al. Goldschmidt 2023, Jul 2023, Lyon, France Communication dans un congrès hal-04050561v1
Ion Transport in Fractured Shale Carl I. Steefel,Christophe Tournassat,Adam D. Jew AGU Fall Meeting 2022, 2022, à renseigner, Unknown Region Communication dans un congrès insu-04092124v1
Competitive sorption processes at clay surfaces: Experimental and modeling approaches Esra Orucoglu,Sylvain Grangeon,Alexandre Gloter,Jean-Charles Robinet,Benoît Madéet al. 8th International Conference on Clays in Natural and Engineered Barriers for Radioactive Waste Confinement, Jun 2022, Nancy, France Communication dans un congrès hal-03667914v1
porousMedia4Foam: An open-source multiphase reactive transport platform based on OpenFOAM for geothermal applications Saideep Pavuluri,Christophe Tournassat,Francis Claret,Laurent André,Cyprien Soulaine European Geothermal Congress 2022, Oct 2022, BERLIN, Germany Communication dans un congrès hal-03685389v2
A Prediction of Uranium(VI) Diffusion in Montmorillonite at Various Chemical Solution Conditions Jonathan C Pistorino,Ruth Tinnacher,Christophe Tournassat How to integrate geochemistry at affordable costs into reactive transport for large-scale systems, Feb 2020, Helmholtz-Zentrum Dresden-Rossendorf, Germany Communication dans un congrès hal-02450514v1
A &quot;lab-on-a-chip&quot; experiment for assessing mineral precipitation processes in fractured porous media Jenna Poonoosamy,Sophie Roman,Cyprien Soulaine,Hang Deng,Sergi Molinset al. EGU General Assembly 2020, May 2020, Online, France. ⟨10.5194/egusphere-egu2020-13613⟩ Communication dans un congrès hal-03554408v1
Simulating uranium(VI) diffusion in sodium-montmorillonite as a function of chemical solution conditions Ruth Tinnacher,Jonathan Pistorino,Christophe Tournassat 257th National Meeting of the American-Chemical-Society, Mar 2019, Orlando, United States Communication dans un congrès hal-02380965v1
A mean electrostatic model for ion transport through heterogeneous clay C. I. Steefel,Christophe Tournassat,Josep M. Soler Euroclay 2019, Jul 2019, Paris, France Communication dans un congrès hal-02078434v1
Fate of Gluconic Acid in Context of Radioactive Waste Disposal: Batch Experiments Claude Le Milbeau,P. Ollivier,G. Kuippers,J.R. Lloyd,A. Albrechtet al. 29th International Meeting on Organic Geochemistry, Sep 2019, Gothenburg, Sweden. pp.1-2, ⟨10.3997/2214-4609.201902763⟩ Communication dans un congrès insu-03363718v1
Ion exchange in fougèrite: influence of crystal size and structural defects Myriam I Agnel,Sylvain Grangeon,François Fauth,Erik Elkaim,Francis Claretet al. Euroclay 2019, Jul 2019, Paris, France Communication dans un congrès hal-02196552v1
Retention of arsenic, chromium and boron on an outcropping clay-rich rock formation (the Tégulines Clay, eastern France) Mathieu Debure,Christophe Tournassat,Catherine Lerouge,Benoît Madé,Jean-Charles Robinetet al. Euroclay, Jul 2019, Paris, France Communication dans un congrès hal-02073943v1
Influence of calcite on uranium(VI) sorption onto montmorillonite clay Nicolas Hall,Allen Shaw,Diem Quynh La,Christophe Tournassat,Ruth Tinnacher National Meeting of the American-Chemical-Society, Mar 2019, philadelphie, United States Communication dans un congrès hal-02380964v1
Multi-component reactive transport in a claystone: insights from a ten-year alkaline in situ injection experiment Francis Claret,Mathieu Debure,Carl Steefel,Christophe Tournassat,Yannick Linard 17th International Conference on the Chemistry and Migration Behavior of Actinides and Fission Products in the Geosphere, Sep 2019, kyoto, Japan Communication dans un congrès hal-02155142v1
Modeling of coupled processes in nanoporous media. From molecular dynamics information to reactive transport modeling Christophe Tournassat,C. I. Steefel Goldschmidt Conference, Aug 2019, Barcelone, Spain Communication dans un congrès hal-02154808v1
Ion exchange in fougèrite: influence of crystal size and structural defects Myriam I Agnel,Sylvain Grangeon,François Fauth,Erik Elkaim,Francis Claretet al. Goldschmidt 2019, Aug 2019, Barcelone, Spain Communication dans un congrès hal-02154923v1
Coupling clay swelling properties to hydro-geochemical conditions: a reactive transport modeling approach Christophe Tournassat,Stéphane Gaboreau,Carl I. Steefel DECOVALEX 2019 Symposium, Nov 2019, Brugg, Switzerland Communication dans un congrès hal-02319632v1
Multi-Continuum Reactive Transport Modeling Approaches for Heterogeneous Clay Media: Overview and Challenges Christophe Tournassat,Carl I. Steefel AGU Fall Meeting, Dec 2018, Washington, DC, United States Communication dans un congrès hal-01879540v1
From microstructure description to macro-scale properties of clay barriers Christophe Tournassat,Stéphane Gaboreau,Carl I. Steefel CouFrac - International Conference on Coupled Processes in Fractured Geological Media: Observation, Modeling, and Application, Nov 2018, Wuhan, China Communication dans un congrès hal-01896031v1
Shales and geological waste repositories: from microstructure description to macro-scale properties Christophe Tournassat,Stéphane Gaboreau,Carl I. Steefel Computational Methods in Water Resources XXII - CMWR 2018, Jun 2018, Saint-Malo, France Communication dans un congrès hal-01735560v1
Redox potential measurements in a claystone Stéphanie Betelu,Ioannis Ignatiadis,Christophe Tournassat Clay Conference 2017, Sep 2017, DAVOS, Switzerland Communication dans un congrès hal-01523729v1
Imaging a pore network in a clay-rock at the sub-nanometer scale Stéphane Gaboreau,D Pret²,Christophe Tournassat 9th International Conference on Porous Media & Annual Meeting, May 2017, Rotterdam, Netherlands Communication dans un congrès hal-01501201v1
MODELING URANIUM(VI) ADSORPTION ONTO MONTMORILLONITE UNDER VARYING CARBONATE CONCENTRATIONS: A SURFACE COMPLEXATION MODEL ACCOUNTING FOR THE SPILLOVER EFFECT ON SURFACE POTENTIAL Christophe Tournassat,Ruth M. Tinnacher,Sylvain Grangeon,James A. Davis Migration, Sep 2017, Barcelona, Spain Communication dans un congrès hal-01527131v1
Shales and geological waste repositories: from microstructure description to macro-scale properties Christophe Tournassat,C. I. Steefel,S. Gaboreau American Geophysical Union, 2017, San Franciscp, United States Communication dans un congrès hal-03552723v1
Retention behavior of As, Cr, B, Hg, and Cd on Teguline Clay samples Mathieu Debure,Christophe Tournassat,Catherine Lerouge,Benoît Madé,Jean-Charles Robinetet al. Clay Conference 2017, Sep 2017, Davos, Switzerland Communication dans un congrès hal-01521010v1
Diffusion in clays. Continuum and micro-continuum approaches Christophe Tournassat,C. I. Steefel,Stéphane Gaboreau 9th International Conference on Porous Media & Annual Meeting 2017, May 2017, Rotterdam, Netherlands Communication dans un congrès hal-01496297v1
Kinetics and Mechanisms of Ni Sorption by Nanocrystalline Vernadite Sylvain Grangeon,Alejandro Fernandez-Martinez,Francis Claret,Nicolas C.M. Marty,Christophe Tournassatet al. Goldschmidt 2017, Aug 2017, Paris, France Communication dans un congrès hal-01500326v1
Modeling the acid-base properties of montmorillonite edge surfaces Christophe Tournassat,James A. Davis,Christophe Chiaberge,Sylvain Grangeon,Ian C. Bourg Clay Conference 2017, Sep 2017, Davos, Switzerland Communication dans un congrès hal-01522406v1
Profil d'altération dans les argiles tégulines, Bassin de Paris, France Catherine Lerouge,Jean-Charles Robinet,Mathieu Debure,Benoît Henry,Nicolas Maubecet al. 25e Réunion des Sciences de la Terre, Oct 2016, Caen, France Communication dans un congrès hal-01349598v1
Diffusion in clays: molecular scale view, continuum scale modeling and importance of microstructure Christophe Tournassat Goldschmidt 2016, Jun 2016, Yokohama, Japan Communication dans un congrès hal-01279489v1
Anion exclusion and diffusion in smectite clay barriers Ian Bourg,Ruth Tinnacher,Michael Holmboe,Christophe Tournassat 252nd American Chemical Society National Meeting & Exposition, Aug 2016, Philadelphia, United States Communication dans un congrès hal-04608567v1
Molecular dynamics simulations of anion exclusion in clay interlayer nanopores Christophe Tournassat,Ian C. Bourg,Michael Holmboe,Garrison Sposito,Carl I. Steefel 14éme Colloque du Groupe Français des Argiles, May 2016, Poitiers, France Communication dans un congrès hal-01293206v1
Retention processes in clay-rocks Christophe Tournassat,Sylvain Grangeon Goldschmidt 2015, Aug 2015, Prague, Czech Republic Communication dans un congrès hal-01140507v1
Uranium(VI) Diffusion in Sodium-Montmorillonite at Alkaline pH Ruth Tinnacher,James A. Davis,Christophe Tournassat,J. T. Birkholzer 14ème Colloque du Groupe Français des Argiles, May 2016, Poitiers, France Communication dans un congrès hal-01306557v1
Breakdown of the modified Gouy-Chapman model for clay surfaces in equilibrium witha CaCl 2 electrolyte: a molecular dynamic study Christophe Tournassat,Ian C. Bourg,Carl I. Steefel Clays in Natural and Engineered Barriers for Radioactive Waste Confinement, Mar 2015, Brussels, Belgium Communication dans un congrès hal-01118802v1
Kinetic experiments in order to determine the rate of oxygen consumption by the Callovian-Oxfordian argillaceous rock Joachim Tremosa,Jebril Hadi,Francis Claret,Christophe Tournassat,Agnès Vinsot Clays in natural and engineered barriers for radioactive waste confinement, Mar 2015, Bruxelles, Belgium Communication dans un congrès hal-01118917v1
Carbonates reactivity in temperature and interactions with Fe- minerals Mathieu Debure,Sylvain Grangeon,Catherine Lerouge,Hélène Gailhanou,Benoît Madéet al. Clay Conference, Mar 2015, Bruxelles, Belgium Communication dans un congrès hal-01118666v1
Study of dolomite dissolution at various temperatures – Evidence for the formation of nanocrystalline secondary phases at dolomite surface and influence on dolomite interactions with other minerals Mathieu Debure,Pascal Andreazza,Sylvain Grangeon,Catherine Lerouge,German Montes-Hernandezet al. 2015 AGU Fall meeting, American Geophysical Union, Dec 2015, San Francisco, United States Communication dans un congrès hal-01182905v1
Impact of microstructure on anion exclusion in compacted clay media Christophe Tournassat,Stéphane Gaboreau,Jean-Charles Robinet,Ian C. Bourg,Carl I. Steefel Euroclay 2015, Clay Mineral Society, Jul 2015, Edinburgh, United Kingdom Communication dans un congrès hal-01137606v1
Structural defects in layered structures: Their determination and their impact on reactivity Sylvain Grangeon,Francis Claret,Christophe Tournassat,Yannick Linard,Bruno Lanson Clays in natural and engineered barriers for radioactive waste confinement: 6th international conference, Mar 2015, Bruxelles, Belgium Communication dans un congrès hal-01119333v1
Molecular dynamics simulations of cation adsorption at mica-water interfaces Ian C. Bourg,Christophe Tournassat 248th National Meeting of the American-Chemical-Society (ACS), Aug 2014, San Francisco, United States Communication dans un congrès hal-04609194v1
In situ diffusion test of hydrogen gas in the Opalinus Clay Agnès Vinsot,C. A. J. Appelo,M. Lundy,S. Wechner,Y. Lettryet al. 5th Conference on Clays in Natural and Engineered Barriers for Radioactive Waste Confinement, 2012, Montpellier, France. pp.563-578, ⟨10.1144/SP400.12⟩ Communication dans un congrès hal-01192886v1
Impacts of pore structure and diffusion-accessible porosity for calcium-bromide diffusion in sodium-montmorillonite Ruth M. Tinnacher,Michael Holmboe,James A. Davis,Christophe Tournassat,Ian C. Bourg 248th National Meeting of the American-Chemical-Society (ACS), Aug 2014, San Francisco, United States Communication dans un congrès hal-04609217v1
Quantification of the breakdown of modified Gouy-Chapman model for 2:1 salt background electrolyte: A molecular dynamic study Christophe Tournassat,Ian C. Bourg,Carl I. Steefel 248th National Meeting of the American-Chemical-Society (ACS), Aug 2014, San Francisco, United States Communication dans un congrès hal-04609208v1
Thermoddem: an example of alive thermochemical database Arnault Lassin,Philippe Blanc,Laurent André,Nicolas C.M. Marty,Marc Parmentieret al. Goldschmidt Conference 2013, Aug 2013, Florence, Italy. under process Communication dans un congrès hal-00812419v1
Controls of Ca/Mg/Fe activity ratios in pore water chemistry models of the Callovian--Oxfordian Clay Formation Catherine Lerouge,Agnès Vinsot,Sylvain Grangeon,Guillaume Wille,Christine Fléhocet al. Fourteenth International Symposium on Water-Rock Interaction, WRI 14, Jun 2013, Avignon, France. pp.475-478, ⟨10.1016/j.proeps.2013.03.133⟩ Communication dans un congrès hal-00781650v1
Monitoring and modeling the behavior of synthetic cementitious like pore waters injected in an equipped borehole of the Meuse Haute Marne Underground Research Laboratory Francis Claret,Yannick Linard,Stéphane Gaboreau,X. Bourbon,Catherine Lerougeet al. Third International Workshop on Mechanisms and Modeling of Cement/Waste Interactions, May 2013, Ghent, Belgium Communication dans un congrès hal-00780402v1
Avancées dans le domaine de la thermodynamique des minéraux argileux Philippe Blanc,Philippe Vieillard,Hélène Gailhanou,Stéphane Gaboreau,Christophe Tournassatet al. 11ème colloque du Groupe Français des Argiles (GFA), Apr 2013, Ivry-sur-Seine, France Communication dans un congrès hal-00798186v1
Chemical homologue speciation in natural systems: a key to understand the anthropogenic RN fate Francis Claret,Catherine Lerouge,Sylvain Grangeon,Tom Sato,Thorsten Schäferet al. Goldschmidt 2013, Aug 2013, Florence, Italy Communication dans un congrès hal-00811188v1
Pyrite-electrode potential measurements in reference solutions versus measured and computed redox potential: at the roots of an innovative generic pH electrode for nuclear waste repositories Stéphanie Betelu,Christophe Tournassat,J. Bertrand,Ioannis Ignatiadis International meeting "Clays in Natural and Engineered Barriers for Radioactive Waste Confinement", Oct 2012, Montpellier, France Communication dans un congrès hal-00703579v1
Cement water injection in an equipped borehole of the Meuse Haute Marne Underground Research Laboratory: monitoring and modeling Francis Claret,Yannick Linard,Stéphane Gaboreau,Xavier Bourbon,Catherine Lerougeet al. Clays in Natural and Engineered Barriers for Radioactive Waste Confinement, Oct 2012, Montpellier, France Communication dans un congrès hal-00725892v1
Caesium uptake by Callovian-Oxfordian clayrock under alkaline perturbation Stéphane Gaboreau,Francis Claret,Catherine Crouzet,Eric Giffaut,Christophe Tournassat International meeting "Clays in Natural and Engineered Barriers for Radioactive Waste Confinement", Oct 2012, Montpellier, France Communication dans un congrès hal-00705340v1
Investigations on structural iron electrochemical properties in layered silicates using massive mica electrodes Jebril Hadi,Ioannis Ignatiadis,Christophe Tournassat,Laurent Charlet,E. Silvester International meeting "Clays in Natural and Engineered Barriers for Radioactive Waste Confinement", Oct 2012, Montpellier, France Communication dans un congrès hal-00703583v1
Diagenetic carbonates in clay-rich marine formations Catherine Lerouge,Sylvain Grangeon,Christine Fléhoc,Stéphane Buschaert,M. Mazureket al. International meeting "Clays in Natural and Engineered Barriers for Radioactive Waste Confinement", Oct 2012, Montpellier, France Communication dans un congrès hal-00701814v1
Prediction of nickel mobility in a clayey formation requires accurate knowledge of the mineralogical assemblage Sylvain Grangeon,Christophe Tournassat,Catherine Lerouge,Eric Giffaut,Thorsten Schäfer International meeting "Clays in Natural and Engineered Barriers for Radioactive Waste Confinement", Oct 2012, Montpellier, France Communication dans un congrès hal-00703575v1
Influence of temperature on the geochemistry of Callovo-oxfordian argillite: batch experiments and modelling at 80°C Hélène Gailhanou,Christophe Tournassat,Valérie Laperche,Sylvain Grangeon,Philippe Blancet al. International meeting "Clays in Natural and Engineered Barriers for Radioactive Waste Confinement", Oct 2012, Montpellier, France Communication dans un congrès hal-00701811v1
Cement/clay interactions: feedback on the increasing complexity of modeling assumptions Nicolas C.M. Marty,I. Munier,Eric C. Gaucher,Christophe Tournassat,Stéphane Gaboreauet al. International meeting "Clays in Natural and Engineered Barriers for Radioactive Waste Confinement", Oct 2012, Montpellier, France Communication dans un congrès hal-00701808v1
Modeling the dioctahedral smectites layer charge variation versus structural Iron reduction level Jebril Hadi,Christophe Tournassat,Stéphanie Betelu,Ioannis Ignatiadis,Laurent Charlet International meeting "Clays in Natural and Engineered Barriers for Radioactive Waste Confinement", Oct 2012, Montpellier, France Communication dans un congrès hal-00703576v1
Diffuse transport in clay media: µm to nm scale characterization of pore space and mineral spatial organization Stéphane Gaboreau,J.C. Robinet,Christophe Tournassat,Sébastien Savoye International meeting "Clays in Natural and Engineered Barriers for Radioactive Waste Confinement", Oct 2012, Montpellier, France Communication dans un congrès hal-00705345v1
Induced polarization of clay-sand mixtures: experiments and modelling G. Okay,Philippe Leroy,A. Ghorbani,Damien Jougnot,Philippe Cosenzaet al. International meeting "Clays in Natural and Engineered Barriers for Radioactive Waste Confinement", Oct 2012, Montpellier, France Communication dans un congrès hal-00735691v1
Modelling specific adsorption of divalent metals on montmorillonite surfaces. Pitfalls, recent achievements and current challenges. Christophe Tournassat,Sylvain Grangeon,Philippe Leroy,Eric Giffaut International meeting "Clays in Natural and Engineered Barriers for Radioactive Waste Confinement", Oct 2012, Montpellier, France Communication dans un congrès hal-00701812v1
Anions in clay materials : a case study for multi-scale modeling approaches Christophe Tournassat Goldschmidt 2011, Aug 2011, Prague, Czech Republic Communication dans un congrès hal-00599424v1
Considering clay rock heterogeneity in radionuclide retention Bernd Grambow,Gilles F Montavon,Christophe Tournassat,E. Giffaut,S. Altmann Clays in Natural & Engineered Barriers for Radioactive Waste Confinement, Mar 2011, Nantes, France Communication dans un congrès in2p3-00611656v1
Comparative EPMA and μ-XRF methods for mapping micro-scale distribution of iodine in biocarbonates of the Callovian-Oxfordian clayey formation at Bure, Eastern part of the Paris Basin Catherine Lerouge,Francis Claret,M.A. Denecke,Guillaume Wille,G. Falkenberget al. 12th International Conference on the Chemistry and Migration Behaviour of Actinides and Fission Products in the Geosphere (Migration '09), Sep 2009, Kennewick, United States. pp.271-277, ⟨10.1016/j.pce.2010.04.003⟩ Communication dans un congrès insu-00492597v1
CO2 partial pressure in clayrocks: a general model Eric C. Gaucher,Arnault Lassin,Catherine Lerouge,Christine Fléhoc,Nicolas C.M. Martyet al. Water-Rock Interaction WRI-13, Aug 2010, Guanajuato, Mexico. pp.855-858 Communication dans un congrès hal-00664967v1
Synthesis, characterization and properties of iron-rich Na montmorillonite Jocelyne Miehe-Brendle,Anne-Catherine Faust,Loïc Vidal,Christophe Tournassat,Jean-Marc Grenecheet al. Euroclay 2007, Jul 2007, Aveiro, Portugal Communication dans un congrès hal-00161419v1
Reactivity of ferrous iron in anoxic environments: electron transfers in Se(IV)-Fe(II) mineral systems L. Charlet,A.-C. Scheinost,Jean-Marc Greneche,Christophe Tournassat,A. Gehinet al. 232nd ACS National Meeting, Sep 2006, San Francisco, United States Communication dans un congrès hal-00268723v1
Synthetic montmorillonite containing iron: preparation and caracterization Jocelyne Miehé-Brendlé,Anne-Catherine Faust,Loïc Vidal,A. Gehin,L. Charletet al. 1st. Annual Workshop, 6TH EC FP - FUNMIG IP, Nov 2005, Paris, France Communication dans un congrès hal-00293916v1
Sorption-induced reversible oxidation of Fe(II) a the montmorillonite/water interface. A Mössbauer Study A. Gehin,Jean-Marc Greneche,J. Miehé-Brendlé,D.-G. Rangourt,L. Charletet al. 1st. Annual Workshop, 6TH EC FP - FUNMIG IP, Nov 2005, Paris, France Communication dans un congrès hal-00293918v1
Evidences of the Fe(II) high redox reactivity in clay phases of Callovian-Oxfordian clay-stones. A Mössbauer study Christophe Tournassat,Jean-Marc Greneche,Philippe Blanc,J. Miehé-Brendlé,L. Charletet al. 1st. Annual Workshop 6TH EC FP - FUNMIG IP, Nov 2005, Paris, France Communication dans un congrès hal-00294524v1

Poster de conférence (9)

Multi-Component Reactive Transport in a Claystone: Insights from a Ten-Year Alkaline In Situ Injection Experiment Mathieu Debure,Francis Claret,Stéphane Gaboreau,C Steefel,Y Linardet al. Goldschmidt2023 - International conference on geochemistry and related subjects,, Jul 2023, Lyon, France. Poster de conférence hal-04143531v1
Mechanisms of anion sorption by hydrated calcium aluminates (AFm) Sylvain Grangeon,Nicolas C.M. Marty,Christophe Tournassat,Francis Claret Clay Conference 2022, Jun 2022, Nancy, France Poster de conférence hal-03681522v1
Impact of green rust structure on anion exchange processes Myriam I Agnel,Sylvain Grangeon,Christophe Tournassat YNHM 2018, Mar 2018, Paris, France Poster de conférence hal-02282669v1
Weathering profile in a near-surface aquitard : example of the teguline Clay, East Paris Basin, France Catherine Lerouge,J. C. Robinet,Mathieu Debure,Benoît Henry,Nicolas Maubecet al. Clay Conference 2017, Sep 2017, Davos, Switzerland Poster de conférence hal-01523110v1
Montmorillonite particles size distribution and edge surfaces orientation using AFM imaging Sergey V. Kraevskiy,Marylène Vayer,Christophe Tournassat,Andrey G. Kalinichev 7th International Conference "Clays in Natural and Engineered Barriers for Radioactive Waste Confinement", Sep 2017, Davos, Switzerland. 2017 Poster de conférence in2p3-01633093v1
Oxidation kinetics of tailings from the Callovo-Oxfordian argillites: flow-through experiments and modelling at the reactor scale Nicolas C.M. Marty,Adeline Lach,Francis Claret,Christophe Tournassat,Benoît Madéet al. Clay Conference 2017, Sep 2017, Davos, Switzerland Poster de conférence hal-01523940v1
Chemical evolution of a HLW cell in Callovo-Oxfordian Claystone: taking into account the oxic transient period Nicolas C.M. Marty,Benoit Cochepin,Hossein Davarzani,Christophe Tournassat,Nicolas Michauet al. Clays in Natural and Engineered Barriers for Radioactive Waste Confinement, Mar 2015, Bruxelles, Belgium Poster de conférence hal-01119819v1
Geochemistry of Callovo-oxfordian argillite at 80 °C : batch experiments and modeling Hélène Gailhanou,Stéphane Gaboreau,Mathieu Debure,Philippe Blanc,Sylvain Grangeonet al. Clays in Natural and Engineered Barriers for Radioactive Waste Confinement - 6th International Conference, Mar 2015, Bruxelles, Belgium Poster de conférence hal-01119495v1
Influence of surface conductivity on the apparent zeta potential of homoionic montmorillonite particles Philippe Leroy,Nicolas Devau,Christophe Tournassat,Olivier Bernard Clay Conference : Clays in Natural and Engineered Barriers for Radioactive Waste, Mar 2015, Bruxelles, Belgium Poster de conférence hal-01119979v1