Christophe Tournassat

BRGM

Adresse e-mail c.tournassat@brgm.fr
Fonction Responsable Grand Programme Milieu Poreux et Biogéosystèmes continentaux
Téléphone 02 38 25 50 72
Bâtiment CNRS, bureau 207
Statut Permanent, emploi Chercheur
Grand Programme Milieu poreux
Autre Grand Programme Biogéosystèmes

A propos...

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.  In 2003 he joined the French Geological Survey (BRGM) as a staff Scientist.  Since 2010, he has been heading the BRGM scientific program on geological barriers performances, which includes BRGM’s researches on radioactive waste storage. In 2017, he took the lead of the group "Porous Media"  in the framework of the renewal of the collaboration between BRGM, CNRS and the University of Orléans in the ISTO laboratory (Institut des Science de la Terre d'Orléans). In addition, he took a part-time position at the Energy Geoscience Division of the Lawrence Berkeley Laboratory in 2017, in order to pursue its collaboration with Carl Steefel and Benjamin Gilbert at LBL in the framework of the LBNL-BRGM collaboration agreement. His scientific interest covers a wide 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.


Christophe Tournassat is associate editor of Geochimica et Cosmochimica Acta and Journal of Hydrology, and is member of the editorial board of Applied Clay science.


Recent publications:

Marty, N. C.; Lach, A.; Lerouge, C.; Grangeon, S.; Claret, F.; Fauchet, C.; Madé, B.; Lundy, M.; Lagroix, F.; Tournassat, C.; & Tremosa, J. , 2018. Weathering of an argillaceous rock in the presence of atmospheric conditions: A flow-through experiment and modelling study. Applied Geochemistry, 96, 252-263.

Zhang, C.; Liu, X.; Tinnacher, R. M. & Tournassat, C, 2018. Mechanistic understanding of uranyl ion complexation on montmorillonite edges: A combined first-principles molecular dynamics-surface complexation modeling approach. Environmental science & technology, 52, 8501-8509

Orucoglu, E., Tournassat, C., Robinet, J.-C., Madé, B. & Lundy, M., 2018. 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. Applied Clay Science, 163, 20-32

Debure, M., Tournassat, C., Lerouge, C., Madé, B., Robinet, J. C., Fernández, A. M., & Grangeon, S., 2018. Retention of arsenic, chromium and boron on an outcropping clay-rich rock formation (the Tégulines Clay, eastern France). Science of The Total Environment, 642, 216-229.

Marty, N. C., Grangeon, S., Elkaïm, E., Tournassat, C., Fauchet, C., & Claret, F., 2018. Thermodynamic and crystallographic model for anion uptake by hydrated calcium aluminate (AFm): an example of molybdenum. Scientific reports, 8, 7943.

Claret, F., Grangeon, S., Loschetter, A., Tournassat, C., De Nolf, W., Harker, N., Boulahya, F., Gaboreau, S., Linard, Y., Bourbon, X., others, 2018. Deciphering mineralogical changes and carbonation development during hydration and ageing of a consolidated ternary blended cement paste. IUCrJ 5.

Lerouge, C., Robinet, J.-C., Debure, M., Tournassat, C., Bouchet, A., Fernández, A.M., Flehoc, C., Guerrot, C., Kars, M., Lagroix, F., Landrein, P., Madé, B., Negrel, P., Wille, G., Claret, F., 2018. A deep alteration and oxidation profile in a shallow clay aquitard: example of the Tégulines Clay, East Paris Basin, France. Geofluids. Article ID 1606753.

Tournassat, C., Tinnacher, R.M., Grangeon, S., Davis, J.A., 2018. Modeling uranium (VI) adsorption onto montmorillonite under varying carbonate concentrations: A surface complexation model accounting for the spillover effect on surface potential. Geochimica et Cosmochimica Acta 220, 291–308.

Claret, F.; Marty, N. & Tournassat, C. Modeling the long-term stability of multi-barrier systems for nuclear waste disposal in geological clay formations Reactive Transport Modeling, Xiao, Y.; Whitaker, F. & Xu, T. (Eds.), John Wiley & Sons, 2018, page 395



For a full list of publications, click here