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Présentation
RESEARCH INTERESTS AND BACKGROUND
My research interests are focused on the study of environmental interfaces between water, minerals and microorganisms. I search to understand and quantify the feedbacks between those three compartments and their effects on the development of ecological niches. I use field, laboratory and modeling approaches to study this problematic at a broad range of scales going from catchments to micromodels.
During my PhD at University of Rennes, I particularly worked on understanding how groundwater flow, by the transport of dissolved oxygen, plays a critical role on determining the redox conditons in the continental subsurface. This has important consequences on the availability of dissolved elements that are energetic sources for microorganisms, thus determining favorable ecological niches.
Domaines de recherche
Compétences
Micro-analysis skills: petrographic microscope, electronic microprobe, confocal and epifluorescence, SEM-EDS, Vertical Scanning Interferometry
Reactive-transport modeling (PHREEQC, Crunchflow, Modflow)
Code: Python, R.
Field and lab experiments
Field work (borehole geophysics, water chemistry sampling and analysis)
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Hydrological and Geological Controls for the Depth Distribution of Dissolved Oxygen and Iron in Silicate CatchmentsWater Resources Research, 2023, 59 (8), pp.e2023WR034986. ⟨10.1029/2023wr034986⟩
Article dans une revue
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Estimation de l'énergie disponible à l'échelle du bassin versant de Guidel (Morbihan, France) par une approche thermodynamique28 ème édition de la Réunion des sciences de la Terre (RST 2023), Société Géologique de France (SGF), Oct 2023, Rennes, France
Communication dans un congrès
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Groundwater flow patterns and subsurface heterogeneity drive critical zone geochemical reactionsEGU General Assembly 2023, European Geosciences Union, Apr 2023, Vienna, Austria. pp.EGU23-12067, ⟨10.5194/egusphere-egu23-12067⟩
Communication dans un congrès
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A Breath in the Dark: Transport and Reactivity of Dissolved Oxygen in Fractured-Bedrock AquifersAmerican Geophysical Union Fall Meeting (AGU 2021), Dec 2021, virtual, United States. pp.B54B-03
Communication dans un congrès
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The Aerobic Critical Zone: deep transport and reactivity of dissolved oxygen in fractured bedrock aquifers27 ème Réunion des sciences de la Terre (RST 2021), Nov 2021, Lyon, France. pp.781
Communication dans un congrès
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Dissolved Oxygen stable isotopes in groundwater: a new tracer of biogeochemical reactivity for the underground Critical ZoneGoldschmidt Conference 2021, European Association of Geochemistry & Geochemical Society., Jul 2021, online, United States
Communication dans un congrès
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Disentangling biogeochemical controls onweathering rates in the critical zone withmineral incubation experimentsAdvancing Critical Zone science. First OZCAR TERENO International Conference, Oct 2021, Strasbourg, France. pp.344-345
Communication dans un congrès
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The Aerobic Critical Zone: deep transport and reactivity of dissolved oxygen in fractured bedrock aquifers27e édition de la Réunion des Sciences de la Terre, SGF, CNRS, Laboratoire de Géologie de Lyon ou l’étude de la Terre, des planètes et de l’environnement, Nov 2021, Lyon, France
Communication dans un congrès
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In-situ biogeochemical response to oxygendelivery in a fractured-bedrock aquifer:insights from a reactive Push-Pull testAdvancing Critical Zone science. First OZCAR TERENO International Conference, Oct 2021, Strasbourg, France. pp.248
Communication dans un congrès
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Which role do preferential flowpaths and fractures play in the subsurface reactivity in heterogeneous aquifers?European Geosciences Union General Assembly, Apr 2020, online, Austria. pp.EGU2020-17564
Communication dans un congrès
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Mineral substrate and fluid redox conditions control cell density in attached biofilms: in-situ incubations in deep groundwaterGoldschmidt Conference 2023, Jul 2023, Lyon, France
Poster de conférence
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