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Ivan-David Osorio-Leon

PhD - Interdisciplinary Researcher in Biogeochemistry
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Documents
Affiliations actuelles
Identifiants chercheurs
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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)

Publications

"camille-bouchez"
"eliot-chatton"

A Breath in the Dark: Transport and Reactivity of Dissolved Oxygen in Fractured-Bedrock Aquifers

Ivan-David Osorio-Leon , Camille Bouchez , Eliot Chatton , Julien Farasin , Thierry Labasque
American Geophysical Union Fall Meeting (AGU 2021), Dec 2021, virtual, United States. pp.B54B-03
Communication dans un congrès insu-03534154v1
Image document

Dissolved Oxygen stable isotopes in groundwater: a new tracer of biogeochemical reactivity for the underground Critical Zone

Ivan-David Osorio-Leon , Eliot Chatton , Marlene Dordoni , Davit Piatka , Johannes Barth
Goldschmidt Conference 2021, European Association of Geochemistry & Geochemical Society., Jul 2021, online, United States
Communication dans un congrès insu-03286671v1

In-situ biogeochemical response to oxygendelivery in a fractured-bedrock aquifer:insights from a reactive Push-Pull test

Ivan-David Osorio-Leon , Melissa Garry , Camille Bouchez , Julien Farasin , Eliot Chatton
Advancing Critical Zone science. First OZCAR TERENO International Conference, Oct 2021, Strasbourg, France. pp.248
Communication dans un congrès insu-03602775v1