Christophe Tournassat

185
Documents
Affiliations actuelles
  • Lawrence Berkeley National Laboratory [Berkeley] (LBNL)
  • Institut des Sciences de la Terre d'Orléans - UMR7327 (ISTO)
  • Observatoire des Sciences de l'Univers en région Centre (OSUC)
  • Géosciences pour l'énergie & l'environnement
Contact

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 "Habilitation à diriger des recherches" 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

Publications

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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

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 Henocq et al.

Applied Clay Science, 2025, 276, pp.107928. ⟨10.1016/j.clay.2025.107928⟩

Article dans une revue insu-05212963v1
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Probing the Redox Reactivity of a Reduced Nontronite: A Quick XAS Operando Study

Léo Chevrier , Sylvain Grangeon , Anthony Beauvois , Eric Bourhis , Jan Filip et al.

Environmental Science and Technology, 2025, ⟨10.1021/acs.est.4c10829⟩

Article dans une revue insu-04974315v1

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 Tournassat et al.

Physical Chemistry Chemical Physics, 2024, 26 (5), pp.4125-4134. ⟨10.1039/d3cp04941h⟩

Article dans une revue insu-04454401v1
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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
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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
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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 Hubert et al.

Journal of Contaminant Hydrology, 2024, pp.104357. ⟨10.1016/j.jconhyd.2024.104357⟩

Article dans une revue insu-04569499v2
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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
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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
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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
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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
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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 Géhin et al.

Journal of Materials Research, 2023, 38 (4), pp.958-973. ⟨10.1557/s43578-022-00823-8⟩

Article dans une revue insu-04027115v1
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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
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Molecular-level understanding of metal ion retention in clay-rich materials

Xiandong Liu , Christophe Tournassat , Sylvain Grangeon , Andrey Kalinichev , Yoshio Takahashi et al.

Nature Reviews Earth & Environment, 2022, 3, pp.461-476. ⟨10.1038/s43017-022-00301-z⟩

Article dans une revue insu-03714436v1
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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
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Competitive Adsorption Processes at Clay Mineral Surfaces: A Coupled Experimental and Modeling Approach

Esra Orucoglu , Sylvain Grangeon , Alexandre Gloter , Jean-Charles Robinet , Benoît Madé et al.

ACS Earth and Space Chemistry, 2022, 6 (1), pp.144-159. ⟨10.1021/acsearthspacechem.1c00323⟩

Article dans une revue insu-03568014v1
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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
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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
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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
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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
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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
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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
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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
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Mechanistic and Thermodynamic Insights into Anion Exchange by Green Rust

Myriam I Agnel , Sylvain Grangeon , François Fauth , Erik Elkaim , Francis Claret et al.

Environmental Science and Technology, 2020, 54 (2), pp.851-861. ⟨10.1021/acs.est.9b05632⟩

Article dans une revue hal-02488822v1
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Identification of montmorillonite particle edge orientations by atomic-force microscopy

Sergey Kraevsky , Christophe Tournassat , Marylène Vayer , Fabienne Warmont , Sylvain Grangeon et al.

Applied Clay Science, 2020, 186, 105442 (8 p.). ⟨10.1016/j.clay.2020.105442⟩

Article dans une revue insu-02476314v1
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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
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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
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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
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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 Robinet et al.

Science of the Total Environment, 2018, 642, pp.216-229. ⟨10.1016/j.scitotenv.2018.06.037⟩

Article dans une revue insu-01817676v1
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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

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 Claret et al.

Applied Geochemistry, 2018, 96, pp.252-263. ⟨10.1016/j.apgeochem.2018.07.005⟩

Article dans une revue istex insu-02356015v1

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 Findling et al.

Environmental Science and Technology, 2018, 52 (3), pp.1624 - 1632. ⟨10.1021/acs.est.7b04644⟩

Article dans une revue insu-01882419v1
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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 Fauchet et al.

Scientific Reports, 2018, 8, pp.7943. ⟨10.1038/s41598-018-26211-z⟩

Article dans une revue insu-01817891v1
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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
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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 Nolf et al.

International Union of Crystallography journal, 2018, 5 (2), pp.150 - 157. ⟨10.1107/S205225251701836X⟩

Article dans une revue insu-01766385v1
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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 Bouchet et al.

Geofluids, 2018, 2018, pp.1 - 20. ⟨10.1155/2018/1606753⟩

Article dans une revue insu-01719398v1
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Evidence of Multiple Sorption Modes in Layered Double Hydroxides Using Mo As Structural Probe

Bin Ma , Alejandro Fernandez-Martinez , Sylvain Grangeon , Christophe Tournassat , Nathaniel Findling et al.

Environmental Science and Technology, 2017, 51 (10), pp.5531 - 5540. ⟨10.1021/acs.est.7b00946⟩

Article dans une revue hal-01849363v1
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Nucleation and growth of feitknechtite from nanocrystalline vernadite precursor

Sylvain Grangeon , Fabienne Warmont , Christophe Tournassat , Bruno Lanson , Martine Lanson et al.

European Journal of Mineralogy, 2017, 29, pp.767-776. ⟨10.1127/ejm/2017/0029-2665⟩

Article dans une revue insu-01598457v1

Quantitative mineralogical mapping of hydrated low pH concrete

Stéphane Gaboreau , Dimitri Pret , Valerie Montouillout , Pierre Henocq , Jean-Charles Robinet et al.

Cement and Concrete Composites, 2017, 83, pp.360 - 373. ⟨10.1016/j.cemconcomp.2017.08.003⟩

Article dans une revue istex hal-01619711v1
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Spectral induced polarization of Na-montmorillonite dispersions

Philippe Leroy , Maximilian Weigand , Guillaume Mériguet , Egon Zimmermann , Christophe Tournassat et 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
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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
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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 Tournassat et al.

Chemical Geology, 2017, 459, pp.24 - 31. ⟨10.1016/j.chemgeo.2017.03.035⟩

Article dans une revue hal-01849472v1
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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
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Role of carbonate minerals in the distribution of trace elements in marine clay formations

Catherine Lerouge , Karine David , Francis Claret , Mathieu Debure , Sylvain Grangeon et al.

Procedia Earth and Planetary Science, 2017, 17, pp.798-801. ⟨10.1016/j.proeps.2017.01.043⟩

Article dans une revue hal-01334149v1
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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. Gaucher et al.

Geochimica et Cosmochimica Acta, 2017, 197, pp.193-214. ⟨10.1016/j.gca.2016.10.004⟩

Article dans une revue insu-01387039v2

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
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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
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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
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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

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. Mayer et 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 Blanc et al.

Applied Geochemistry, 2015, 55, pp.108-118. ⟨10.1016/j.apgeochem.2014.10.012⟩

Article dans une revue istex hal-01355409v1

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 Tournassat et al.

The American Mineralogist, 2015, 100 (7), ⟨10.2138/am-2015-5096⟩

Article dans une revue hal-01269885v1

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

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 Gaboreau et al.

Environmental Science and Technology Letters, 2015, 2 (5), pp.139-143. ⟨10.1021/acs.estlett.5b00080⟩

Article dans une revue hal-01269920v1

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 Giffaut et al.

Applied Geochemistry, 2015, 52, pp.155-173. ⟨10.1016/j.apgeochem.2014.11.009⟩

Article dans une revue istex hal-01192891v1

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. Robinet et al.

Chemical Geology, 2014, 387, pp.47-58. ⟨10.1016/j.chemgeo.2014.08.008⟩

Article dans une revue in2p3-01154526v1

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 Gaboreau et al.

Transport in Porous Media, 2014, 104 (2), pp.385-405. ⟨10.1007/s11242-014-0340-5⟩

Article dans une revue hal-01176615v1

Constraints from sulfur isotopes on the origin of gypsum at concrete/claystone interfaces

Catherine Lerouge , Francis Claret , Christophe Tournassat , Sylvain Grangeon , Stéphane Gaboreau et 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

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

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

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. Gaucher et al.

Applied Geochemistry, 2012, 27 (7), pp.1417-1431. ⟨10.1016/j.apgeochem.2012.01.005⟩

Article dans une revue istex hal-00675192v1

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

Diffusion-driven transport in clayrock formations

Scott Altmann , Christophe Tournassat , Goutelard Florence , J.C. Parneix , Thomas Gimmi et al.

Applied Geochemistry, 2012, 27, pp.463-478. ⟨10.1016/j.apgeochem.2011.09.015⟩

Article dans une revue istex hal-00664227v1
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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
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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
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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 Agrinier et 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 Villiéras et 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
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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
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Metal speciation in landfill leachates with a focus on the influence of organic matter

Francis Claret , Christophe Tournassat , Catherine Crouzet , Eric C. Gaucher , Thorsten Schäfer et al.

Waste Management, 2011, 31 (9-10), pp.2036-2045. ⟨10.1016/j.wasman.2011.05.014⟩

Article dans une revue hal-00605888v1
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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. Leupin et al.

Applied Geochemistry, 2011, 26, pp.1009-1022. ⟨10.1016/j.apgeochem.2011.03.009⟩

Article dans une revue hal-00597122v1
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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. Leupin et al.

Applied Geochemistry, 2011, 26, pp.1023-1034. ⟨10.1016/j.apgeochem.2011.03.010⟩

Article dans une revue hal-00597107v1
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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
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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
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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 Crouzet et al.

Geochimica et Cosmochimica Acta, 2010, 74 (10), p. 2926-2942. ⟨10.1016/j.gca.2010.02.013⟩

Article dans une revue hal-00552939v1
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Natural iodine in a clay formation: Implications for iodine fate in geological disposals

Francis Claret , Catherine Lerouge , Thierry Laurioux , Mohamed Bizi , Thibauld Conte et al.

Geochimica et Cosmochimica Acta, 2010, 74 (1), pp.16-29. ⟨10.1016/j.gca.2009.09.030⟩

Article dans une revue hal-00563956v1

A robust model for pore-water chemistry of clayrock

Eric C. Gaucher , Christophe Tournassat , F.J. Pearson , Philippe Blanc , Catherine Crouzet et 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

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
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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
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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. Thoby et 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 Exchange Selectivity Coeffi cient Values on Smectite and Mixed-Layer Illite/Smectite Minerals

Christophe Tournassat , Hélène Gailhanou , Catherine Crouzet , Gilles Braibant , Anne Gautier et al.

Soil Science Society of America Journal, 2009, 73 (3), p. 928-942. ⟨10.2136/sssaj2008.0285⟩

Article dans une revue hal-00514039v1
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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 Greneche et al.

Applied Geochemistry, 2008, 23 (4), pp.641-654. ⟨10.1016/j.apgeochem.2007.11.002⟩

Article dans une revue hal-00597171v1

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. Rancourt et 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
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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. Géhin et 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
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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
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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 Gautier et al.

Geochimica et Cosmochimica Acta, 2007, 71 (5), pp.1098-1114. ⟨10.1016/j.gca.2006.11.018⟩

Article dans une revue hal-00597198v1
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Modelling the porewater chemistry of the Callovian-Oxfordian formation at a regional scale

Eric C. Gaucher , Philippe Blanc , Frédérique Bardot , Gilles Braibant , Stéphane Buschaert et al.

Comptes Rendus. Géoscience, 2006, 338, pp.917-930. ⟨10.1016/j.crte.2006.06.002⟩

Article dans une revue hal-00664798v1
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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
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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
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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 Greneche et 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
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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

Reactive transport models are cornerstone tools for optimizing the phytostabilization management of mining residues

Nicolas Devau , Hugues Thouin , Samuel Mertz , Ulysse Moreau , Lydie Le Forestier et al.

AQUACONSOIL, Jun 2025, Liège, Belgium

Communication dans un congrès hal-05101456v1

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

Selenate uptake by green rust

Sylvain Grangeon , Esra Orucoglu , Jean-Marc Greneche , Eric Bourhis , Fabienne Warmont et 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
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Competitive sorption processes at clay surfaces: Experimental and modeling approaches

Esra Orucoglu , Sylvain Grangeon , Alexandre Gloter , Jean-Charles Robinet , Benoît Madé et 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
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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
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A "lab-on-a-chip" experiment for assessing mineral precipitation processes in fractured porous media

Jenna Poonoosamy , Sophie Roman , Cyprien Soulaine , Hang Deng , Sergi Molins et al.

EGU General Assembly 2020, May 2020, Online, France. ⟨10.5194/egusphere-egu2020-13613⟩

Communication dans un congrès hal-03554408v1

Fate of Gluconic Acid in Context of Radioactive Waste Disposal: Batch Experiments

Claude Le Milbeau , P. Ollivier , G. Kuippers , J.R. Lloyd , A. Albrecht et 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 Claret et 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 Robinet et al.

Euroclay, Jul 2019, Paris, France

Communication dans un congrès hal-02073943v1

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

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

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 Claret et al.

Goldschmidt 2019, Aug 2019, Barcelone, Spain

Communication dans un congrès hal-02154923v1
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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

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

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

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
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Retention behavior of As, Cr, B, Hg, and Cd on Teguline Clay samples

Mathieu Debure , Christophe Tournassat , Catherine Lerouge , Benoît Madé , Jean-Charles Robinet et 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 Tournassat et 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

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
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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
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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

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

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
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Profil d'altération dans les argiles tégulines, Bassin de Paris, France

Catherine Lerouge , Jean-Charles Robinet , Mathieu Debure , Benoît Henry , Nicolas Maubec et 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
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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

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

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
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Carbonates reactivity in temperature and interactions with Fe- minerals

Mathieu Debure , Sylvain Grangeon , Catherine Lerouge , Hélène Gailhanou , Benoît Madé et al.

Clay Conference, Mar 2015, Bruxelles, Belgium

Communication dans un congrès hal-01118666v1
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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-Hernandez et al.

2015 AGU Fall meeting, American Geophysical Union, Dec 2015, San Francisco, United States

Communication dans un congrès hal-01182905v1
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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
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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
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Retention processes in clay-rocks

Christophe Tournassat , Sylvain Grangeon

Goldschmidt 2015, Aug 2015, Prague, Czech Republic

Communication dans un congrès hal-01140507v1

In situ diffusion test of hydrogen gas in the Opalinus Clay

Agnès Vinsot , C. A. J. Appelo , M. Lundy , S. Wechner , Y. Lettry et 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

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

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

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 Fléhoc et 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

Thermoddem: an example of alive thermochemical database

Arnault Lassin , Philippe Blanc , Laurent André , Nicolas C.M. Marty , Marc Parmentier et al.

Goldschmidt Conference 2013, Aug 2013, Florence, Italy. under process

Communication dans un congrès hal-00812419v1

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 Lerouge et al.

Third International Workshop on Mechanisms and Modeling of Cement/Waste Interactions, May 2013, Ghent, Belgium

Communication dans un congrès hal-00780402v1
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Avancées dans le domaine de la thermodynamique des minéraux argileux

Philippe Blanc , Philippe Vieillard , Hélène Gailhanou , Stéphane Gaboreau , Christophe Tournassat et al.

11ème colloque du Groupe Français des Argiles (GFA), Apr 2013, Ivry-sur-Seine, France

Communication dans un congrès hal-00798186v1
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Chemical homologue speciation in natural systems: a key to understand the anthropogenic RN fate

Francis Claret , Catherine Lerouge , Sylvain Grangeon , Tom Sato , Thorsten Schäfer et al.

Goldschmidt 2013, Aug 2013, Florence, Italy

Communication dans un congrès hal-00811188v1
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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 Blanc et al.

International meeting "Clays in Natural and Engineered Barriers for Radioactive Waste Confinement", Oct 2012, Montpellier, France

Communication dans un congrès hal-00701811v1
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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
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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

Diagenetic carbonates in clay-rich marine formations

Catherine Lerouge , Sylvain Grangeon , Christine Fléhoc , Stéphane Buschaert , M. Mazurek et al.

International meeting "Clays in Natural and Engineered Barriers for Radioactive Waste Confinement", Oct 2012, Montpellier, France

Communication dans un congrès hal-00701814v1
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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
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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 Lerouge et al.

Clays in Natural and Engineered Barriers for Radioactive Waste Confinement, Oct 2012, Montpellier, France

Communication dans un congrès hal-00725892v1
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Cement/clay interactions: feedback on the increasing complexity of modeling assumptions

Nicolas C.M. Marty , I. Munier , Eric C. Gaucher , Christophe Tournassat , Stéphane Gaboreau et al.

International meeting "Clays in Natural and Engineered Barriers for Radioactive Waste Confinement", Oct 2012, Montpellier, France

Communication dans un congrès hal-00701808v1
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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
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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
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Induced polarization of clay-sand mixtures: experiments and modelling

G. Okay , Philippe Leroy , A. Ghorbani , Damien Jougnot , Philippe Cosenza et al.

International meeting "Clays in Natural and Engineered Barriers for Radioactive Waste Confinement", Oct 2012, Montpellier, France

Communication dans un congrès hal-00735691v1
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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
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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

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
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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. Falkenberg et 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
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CO2 partial pressure in clayrocks: a general model

Eric C. Gaucher , Arnault Lassin , Catherine Lerouge , Christine Fléhoc , Nicolas C.M. Marty et 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 Greneche et 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. Gehin et 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. Charlet et 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. Charlet et 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. Charlet et al.

1st. Annual Workshop 6TH EC FP - FUNMIG IP, Nov 2005, Paris, France

Communication dans un congrès hal-00294524v1

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 Linard et 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
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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 Maubec et 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
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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 Madé et al.

Clay Conference 2017, Sep 2017, Davos, Switzerland

Poster de conférence hal-01523940v1
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Geochemistry of Callovo-oxfordian argillite at 80 °C : batch experiments and modeling

Hélène Gailhanou , Stéphane Gaboreau , Mathieu Debure , Philippe Blanc , Sylvain Grangeon et al.

Clays in Natural and Engineered Barriers for Radioactive Waste Confinement - 6th International Conference, Mar 2015, Bruxelles, Belgium

Poster de conférence hal-01119495v1

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 Michau et al.

Clays in Natural and Engineered Barriers for Radioactive Waste Confinement, Mar 2015, Bruxelles, Belgium

Poster de conférence hal-01119819v1

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