CV / functions
Education :
2008 – Habilitation (HDR), LMTG-CNRS-UMR5563, University Paul Sabatier, Toulouse, France1994 – Ph.D. Geochemistry (honor) , University Paul Sabatier, Toulouse, France1991 – M.S., Environmental Geosciences, Aix-Marseille III-ToulouseIII, France
Professional Experience :
2010 – present: CNRS Research Director (DR1), GET-UMR 5563, Toulouse, France2004 – 2010: CNRS Research Scientist (CR1), LMTG/GET, UMR 5563, Toulouse, France1998-2004: Research Staff, Oak Ridge National Laboratory, Geochemistry and Chemistry Groups. Oak Ridge, Tennessee, USA1995-1997: Postdoctoral Fellow, Oak Ridge National Laboratory, Aqueous Chemistry and Geochemistry Groups. Oak Ridge, Tennessee, USA1991-1994: Contractual researcher and Teaching assistant at the University Paul-Sabatier, Toulouse France.
Responsibilities
GET-University Paul-Sabatier Toulouse activities and services:
Since January 2021: Deputy director of GET laboratory (Valorization&Innovation)
2009-2020: Leader of the Experimental Geochemistry and Biogeochemistry team
2005-present: Scientific leader of the “Experimental Geochemistry platform” at the LMTG/GET
2007-2016: Elected member of the LMTG and GET Laboratory Council
2013-present: Elected member of the scientific committee BEST (Biology, Ecology and Earth Science) at the University Paul Sabatier, Toulouse for Professor and Assistant Professor recruitment
2011-2016: teaching in various masters (Pro and Research) on geochemistry of water-rock interaction and geological CO2 sequestration
Director (or Co-director) of 6 masters, 9 thesis and 8 postdocs
Some National and International activities, Reviews and Expertise:
2010-2020: member of the INSU-CT5 (CESSUR) committee
Co-chair of 2 sessions at Goldschmidt conferences in Paris (2017): Geochemistry of the Subsurface – CO2 Sequestration, Unconventional Oil & Gas Extraction, Geothermal Reservoir ; AND Fluid-Mineral Interaction: Thermodynamics, Kinetics, Isotopes, and Interface
Co-chair workshop and lecturer at Florence (Italy)-Goldschmidt conference (2013): Thermodynamics of Geothermal Fluids. Review of Mineralogy, (Eds., A. Stefansson, T. Driesner, P. Bénézeth, Vol 76, 2013)
2009: Guest editor for a special issue on CO2 geological sequestration in Chemical Geology (265, 1-235)
2015-present: Nominated expert for the MENESR-Direction Générale de la Recherche et de l’innovation (DGRI)
2013: Expertise for CNRT-Nickel New Caledonia: Séquestration du CO2 en Nouvelle Calédonie (2013) Coordinator: P. Bénézeth (GET), partners : GM, BRGM (France and New-Caledonia), IPGP, Perth University (Australia), Columbia University (USA), DIMENC and New-Caledonia University.
Publications
The most recent publications (see links below for the full list)
2023-2024:
Raynaud T., Bachet M., Bénézeth P. , Graff A. (2024 ) Zinc(II)-boron(III) aqueous complex formation between 25 and 70°C. J. Sol. Chem. https://doi.org/10.1007/s10953-023-01357-1.
Payandi-Rolland D., Shirokova L. S., Larieux J., Bénézeth P. , Pokrovsky O.S. (2023) Laboratory growth capacity of an invasive cyanobacterium (Microcystis aeruginosa ) on organic substrates from surface waters of permafrost peatlands. Environmental Science: Processes&Impacts (Royal Society of Chemistry), 25, 659 DOI: 10.1039/d2em00456a.
Delerce S., Hermanska M., Bénézeth P., Schott J., Oelkers E.H. (2023 ). Experimental determination of the reactivity of basalts as a function of their degree of alteration. Géochimica et Cosmochimica Acta, 360, 106-121 doi:10.1016/j.gca.2023.09.007
Delerce S., Bénézeth P., Schott J., Oelkers E.H., (2023 ). The dissolution rates of naturally altered basalts at pH 3 and 120 °C: Implications for the in-situ mineralization of CO2 injected into the subsurface. Chemical Geology, 621, 121353 https://doi.org/10.1016/j.chemgeo.2023.121353 .
2022:
Lamérand C., Shirokova L.S., Petit M., Bénézeth P. , Rols J-L, Pokrovsky O.S. (2022) Kinetics and mechanisms of cyanobacterially-induced precipitation of magnesium silicate, Geobiology, 20(4): 560-574. doi: 10.1111/gbi.12503.
Lamérand C., Shirokova L.S., Bénézeth P. , Rols J-L, Pokrovsky O.S. (2022) Carbon sequestration potential of Mg carbonate and silicate biomineralization in the presence of cyanobacterium Synechococcus. Chemical Geology, 599, 120854. https://doi.org/10.1016/j.chemgeo.2022.120854 . Lamérand C., Pokrovsky O.S., Shirokova L.S., Bénézeth P. , Rols J-L, (2022) Experimental modelling of carbonate mineral precipitation in the presence of cyanobacteria. Book chapter in Mineral formation by microorganisms: concepts and applications” (Springer) (Eds: Aydin Berenjian and Mostafa Seifan, 372p) DOI: 10.1007/978-3-030-80807-5.
2021:
Mavromatis V., Power I.M., Harrison A.L., Beinlich A., Dipple G.M., Bénézeth P. (2021) Mechanisms controlling the Mg isotope composition of hydromagnesite-magnesite playas near Atlin, British Columbia, Canada. Chem. Geology, 579 , 120325.
Pokrovsky O.S., Shirokova L.S., Zabelina S.A., Jordan G., Bénézeth P. (2021) Weak impact of microorganisms on Ca, Mg-bearing silicate weathering. Npj Materials degradation, 5, 51 . https://doi.org/10.1038/s41529-021-00199-w.
Payandi-Rolland D., Shirokova L. S., Labonne F., Bénézeth P. , Pokrovsky O.S. (2021) Impact of freeze-thaw cycles on organic carbon and metals in waters of permafrost peatlands. Chemosphere, 279 , 130510.
Harrison A.L., Bénézeth P. ; Schott J., Oelkers E.H., Mavromatis V. (2021) Magnesium and carbon isotope fractionation during hydrated Mg-carbonate mineral phase transformations. Geochim. Cosmochim. Acta, 293 , 507-524.
2020:
Shirokova L. S., Payandi-Rolland D., Lim A.G., Manasypov R.M., Allen J., Rols J-L, Bénézeth P. , Karlsson J., Pokrovsky O.S. (2020) Diel cycle of carbon, nutrient and metal in humic lakes of permafrost peatlands. Sci. of the Tot. Environ., 737 , 139671.
Payandi-Rolland D., Shirokova L. S., Tesfa M., Bénézeth P. , Lim A.G., Kuzmina D., Karlsson J., Giesler R., Pokrovsky O.S. (2020) Dissolved organic matter biodegradation along a hydrological continuum in permafrost peatlands. Science of the Total Environment, 749 , 141463.
Bychkov A. Yu, Bénézeth P., O.S. Pokrovsky, Yu.V. Shvarov, A. Castillo, and J. Schott (2020) Experimental determination of calcite solubility and the stability of aqueous Ca- and Na-carbonate and -bicarbonate complexes at 100-160°C and 1-50 bar pCO2 using in-situ pH measurements. Geochimica et Cosmochimica Acta, 290 , 352-365.
Payandi-Rolland D., Shirokova L. S., Nakhle P., Tesfa M., Abdou A., Causserand C., Lartiges B., Rols J-L, Guérin F, Bénézeth P. , Pokrovsky O.S. (2020) Aerobic release and biodegradation of dissolved organic matter from frozen peat: Effects of temperature and heterotrophic bacteria. Chem. Geol., 536 , 119448.
Lamérand C., Shirokova L.S., Bénézeth P. , Rols J-L, Pokrovsky O.S. (2020) Olivine dissolution and hydrous Mg carbonate and silicate precipitation in the presence of microbial consortium of photo-autotrophic and heterotrophic bacteria. Geochim. Cosmochim. Acta, 268 , 123-141.
https://scholar.google.com/citations?hl=fr&user=LlgtnQoAAAAJ
https://www.researchgate.net/profile/Pascale_Benezeth
https://orcid.org/0000-0002-1841-2383
Projects
– EDF (2019-2022) Contrat de prestation d’étude dans le cadre de la thèse de Thomas Raynaud.
– Projet Européen GECO (2018-2022) Geothermal Emission Gas Control (GET participant, PI E. Oelkers & P. Bénézeth).
– Projet ANR LISZT (2019-2023) : Carbonatation et ressources dans les lisvenites de la zone de transition manteau ophiolitique/slab: apport des forages OmanDP et des expériences en laboratoire (coordonné par GEOM, PI au GET P. Bénézeth).
– Projet Carnot ISIFoR (2021) CSTORES : mineral Carbon STOrage at low temperature via in situ Raman Experiments (PI P. Bénézeth).
–Projet Carnot ISIFoR (2023-2024)CO2MET : Combining CO2 storage and critical metals recovery for the energy transition (PI P. Bénézeth).
