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Accueil > Annuaire du LHyGeS

FRITZ Bertrand

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Director of Research Emeritous - CNRS Bertrand Fritz

Contact :
Phone : +33 (0)3 68 85 04 12


Research Topics
- Fluid-rock interaction modelling
- Modelling of mineral nucleation and growth processes
- Weathering processes and Environmental Geochemistry
- Hydrothermal alteration processes
- Diagenetic processes
- Brines and Evaporites

1. Geochemical modeling : theory and concepts
Fluid clays interactions : development of solid solution models for complex mineral phases. Simulation of nucleation and growth of mineral phases in contact of aqueous solutions. The code Nanokin. Collaboration with C. Noguera (INSP, UPMC-CNRS, Paris)
Interactions between brines, salts and sediments. Collaboration with C. Pierre (LOCEAN, UPMC-CNRS, Paris). Studies of the marine brines from Santa Pola, region of Alicante (Spain).
Development of the coupled model KIRMAT (Transport + reaction). Collaboration with J. Samper, University of La Coruna (Spain).
Development of the bio-geochemical option in the water-rock interaction models Bio-KINDIS and Bio-KIRMAT. Collaboration with A. Maass (University of Santiago, Chile). Contract frame with BioSigma (Santiago, Chile) for the modeling of copper bio-lixiviation in mine tailings (2010-2014). A new development is planned for 2019 in the new team BISE (Biogeochemistry Isotyopic and Experimental) from the LHYGES.

2. Geochemistry of the Environment
Hydrogeochemical modeling of the weathering of basaltic rocks on the Reunion volcanic Island (Indian Ocean). Cooperation with J.L. Join, Geosciences Reunion, University of Reunion.

3. Geochemistry of geological reservoirs
Diagenesis – Interactions between fluids and rocks in sedimentary basins or in granitic bodies. Geothermal project of Soultz-sous-Forêts. In the frame of the Laboratory of Excellence LABEX “G-Eau-Thermie-Profonde” (2012-2019). EOST, University of Strasbourg.
Hydrogen generation in the context of deep hydrothermal geological reservoirs. A new track for research applying coupled geochemical codes. Research contract with TOTAL (Resp. J. Schmittbuhl, EOST Strasbourg, 2017-2019).Development of the code KIRMAT for gas generation.

Editorial work
Chief-Editor of European Journal of Mineralogy (december 2000-december 2011).

105 papers in international journals
2 books as author
67 papers in other journals, reports
236 communications or posters in international meetings
68 contract reports

Recent Publications – 2012 -2018

Vidal O., Baldeyrou A., Beaufort D., Fritz B., Geoffroy N. and Lanson B. (2012) – Experimental study of the stability and phase relations of clays at high temperature in a thermal gradient. Clays and Clay Min , 60, 200-225.

Noguera C., Fritz B. and Clément A. (2012). A theoretical treatment of the precipitation of doubly substituted solid solutions in aqueous solutions, Crystal Growth & Design,12,7,3444-3457.

Fritz B., Clément A., Montes-Hernandes G. and Noguera C. (2013) . Calcite formation by hydrothermal carbonation of portlandite : complementary insights from experiment and simulation. CRYSTENGCOMM, DOI:10.1039/C3CE26969H.

Schaffhauser Th., Chabaux F., Ambroise B., Lucas Y., Stille P., Reuschlé Th., Perrone Th., Fritz B. (2014) Geochemical and isotopic (U,Sr) tracing of water pathways in the small granitic Ringelbach catchment (Vosges Mountains, France),Chem. Geol., 374-375, 2014, 117-127.
Doi : 10.1016/j.chemgeo.2014.02.028

Ngo V. V., Clément A., Michau N., Fritz B. (2015) Kinetic modeling of interactions between iron, clay and water : Comparison with data from batch experiments, Appl.Geochem., 53, 13-26. Doi : 10.1016/j.apgeochem.2014.12.003

Noguera C.,Fritz B., Clément A. (2015) Precipitation mechanism of amorphous silica nanoparticles : A simulation approach. J. of Colloid and Interface Sci., 448, 553-563. Doi : 10.1016/j.jcis.2015.02.050

Noguera C., Fritz B., Clément A. (2016) Kinetics of precipitation of non-ideal solid solutions in a liquid environment. Chemical Geology, 431, 20-35. Doi : 10.1016/j.chemgeo.2016.03.009

Ngo V. V., Lucas Y., Clément A., Fritz B. (2016)
Modeling the impact of temperature on the saturation state and behavior of minerals in the Soultz-sous-Forêts geothermal system. Geothermics, 64, 196-208. Doi : 10.1016/j.geothermics.2016.06.001

Pollet-Villard M., Daval D., Ackerer P., Saldi G. D., Wild B., Knauss K. G., Fritz B. (2016) Does crystallographic anisotropy prevent the conventional treatment of aqueous mineral reactivity ? A case study based on K-feldspar dissolution kinetics. Geochimica et Cosmochimica Acta, 190, 294_308. Doi : 10.1016/j.gca.2016.07.007

Pollet-Villard M., Daval D., Fritz B., Knauss K.G., Schäfer G., Ackerer, P. (2016) Influence of etch pit development on the surface area and dissolution kinetics of the orthoclase (001) surface. Chemical Geology, 447, 79-92. Doi : 10.1016/j.chemgeo.2016.09.038

Noguera C., Fritz B.., Clément A. (2017) - Kinetics of precipitation of non-ideal binary solid-solutions in an aqueous medium. Procedia Earth and Planetary Science, 17, 169-172. DOI : 10.1016/j.proeps.2016.12.044.

Pollet-Villard M., Daval D., Ackerer Ph., Saldi G.D., Knauss K.G., Wild B., Fritz B. (2017) - Experimental study of dissolution kinetics of K-feldspar as a function of crystal structure anisotropy under hydrothermal conditions. Procedia Earth and Planetary Science, 17, 165-168. DOI : 10.1016/j.proeps.2016.12.042.

Lucas Y., Chabaux F., Schaffhauser Th., Fritz B., Ambroise B., Ackerer J., Clément A. (2017) - Hydrogeochemical modeling (KIRMAT) of spring and deep borehole water compositions in the small granitic Ringelbach catchment (Vosges Mountains, France), Appl. Geochem.,87,1-21. DOI : 10.1016/j.apgeochem.2017.10.005

Vital M., Daval D., Clément A., Fritz B., Martinez D.E. (2018) - Importance of accessory minerals for control of water chemistry of the Pampeano aquifer, province of Buenos Aires, Argentina. Catena, 160, 112-123.

Ackerer J., Chabaux F., Lucas Y., Clément A., Fritz B., Beaulieu E.,Viville, Pierret M.C., Gangloff S., Negrel Ph. (2018) - Monitoring and reactive-transport modeling of the spatial and temporal variations of the Strengbach spring hydrochemistry. Geochim. Cosmochim. Acta, 225, 17-25.

Fritz B., Clément A., Montes-Hernandez G. and Noguera C. (2018) - Kinetics of precipitation of lizardite and magnesite from olivine alteration. Accepted in Chem. Geol. On line.

Other important publications
Fritz B. (1981) - Thermodynamic study and modelling of hydrothermal and diagenetic reactions. State Doctorate of sciences, University Louis Pasteur, in French : Etude thermodynamique et modélisation des réactions hydrothermales et diagénétiques. Published in : Sci. Géol., Mém., 65, 197p.

Numerical codes developped and applied in the lab
Development of original numerical codes for simulation of water-rock interactions, in collaboration with Alain Clément (CNRS engineer, LHYGES).
All these models (except EVAP) use solid solutions for simulating complex mineral phases produced in water-rock interaction processes :
NANOKIN (NAnoparticles-KINdis) combining nucleation , growth, re-dissolution of mineral particles. A code created in collaboration with Claudine Noguera (INSP, Paris) and Alain Baronnet (CINAM, Marseille)
KIRMAT (KInetics of Reaction and MAss Transfer)
KINDIS (KINetics of DISsolution)
EVAP (A code for simulating natural solutions evaporation and brines and salts interaction).