Géosciences Montpellier
Université de Montpellier
Campus triolet cc060
Place eugène bataillon
34095 montpellier cedex05
FRANCE
Where to find us
Geosciences Montpellier’s Hydrosystems theme focuses on the role of liquid water in the dynamics and processes of both surface and subsurface hydrosystems. A fundamental element of the work developed in this theme is the integrative measurement/model approach to the study of processes at different functional scales, involving strong collaborations with mathematics and mechanics laboratories. The issue of change of scale is at the heart of this research theme, with laboratory studies (centimeter scale or less) up to kilometer scale for time scales ranging from seconds (wave-to-wave interactions, for example) to millions of years (karstogenesis, for example). At all scales, hydrosystems are characterized by complex, non-linear or threshold processes, as water is both a carrier of physical mechanical energy and a vector for the transport of energy (heat) and chemical species. To bridge the gap between theoretical or laboratory studies of processes, and their macroscopic expression (in both time and space), sophisticated or breakthrough mathematical approaches and numerical modeling are developed and implemented.
The theme is organized around 3 main questions
What are the mechanisms involved in the formation, destruction and recycling of continental crust over time and the implications for the onset of plate tectonics?
What are the mechanisms and timing of oxygenation of the atmosphere-hydrosphere-biosphere system and its influence on the evolution of living organisms and mineralization of economic interest (Fe, Mn, Au)?
What is the redox balance on a planetary scale and its consequences in terms of habitability?
Our Tools
Les outils utilisés inclus :
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Our studies
The studies are based on an extensive collection of key interval samples spanning the Precambrian era:
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more than 1500 m of drill core from Australia, South Africa and Brazil
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large collection of samples and zircons from 5 continents
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access to a number of core libraries in mining companies in Australia, Brazil, Gabon and South Africa.
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Core shacks in mining companies in Brazil
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Core shacks in mining companies in South Africa
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Core shacks in mining companies in Australia
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Core shacks in mining companies in Gabon
Our strong points
- Dynamic group of young researchers.
- Expertise ranging from fundamental processes to environmental and industrial applications.
- Involvement in research infrastructures and SNOs.
- Multi-scale experimental approach from the laboratory to the field.
- Coupled experimental and numerical approach.
- Long-term, productive collaborations with several research teams in Montpellier, France and abroad in mathematics, mechanics, hydraulics and hydrology.
Highlights
Involved Persons
THEME ANIMATORS : Cédric Champollion & Delphine Roubinet
THEME MEMBERS : The Hydrosystem theme brings together around thirty people, including teacher-researchers, researchers and technical staff. In 2023, this theme will include 7 PhD students and one post-doc.
Le thème est organisé autour de 3 questions principales
Littoral ?
Comment les réactions géochimiques altèrent les propriétés hydro-mécaniques des roches ? Les mesures électriques peuvent-elles aider à quantifier ses changements ? TMP ?
Le karst est-il soluble dans les sciences de l’eau ? Quelles sont les apports de l’hydrogéophysique à l’hydrogéologie karstique ?
Nos outils
- Numérique : (F. Bouchette et D. Roubinet).
- Géophysique : de la sismologie environnement à la gravimétrie pour les suivis, de la tomographie électrique pour la géométrie des structures (P. Pezard).
- Expérimentation en laboratoire : percolation réactive à travers des échantillons poreux ou fracturés dans les conditions de température, pression et forçage hydrochimique in situ (L. Luquot ou P. Gouze).
Les chantiers du thème hydrosystème
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Observatoire du Larzac / monitoring hydro-géophysique
Nos points forts
- Groupe de jeunes chercheurs dynamiques
- Ensemble d’expertises depuis les processus fondamentaux jusqu’aux applications environnementales et industrielles
- Implication dans les infrastructures de recherche et les SNO
- Approche expérimentale multi-échelle du laboratoire au terrain
- Approche couplée expérimentale et numérique.
- Collaborations pérennes et productives avec plusieurs équipes de recherche à Montpellier, en France et à l’international en Mathématiques, mécaniques et d’hydrologie
Moments forts
Rien pour l’instant …
personnes impliquées
ANIMATEURS DU THÈME : Cédric Champollion et Delphine Roubinet
Le thème Hydrosystème regroupe une trentaine de personnes incluant des enseignants-chercheurs, chercheurs, et personnels techniques. En 2023, ce thème inclut 7 doctorants et un post-doctorant.