Centre Européen
de Recherche et d'Enseignement
des Géosciences de l'Environnement
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Earth and Planets

Contacts : Lionel Siame & Yoann Quesnel

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Earth surface processes, tectonics and geodynamics

How, when and why the Earth topography evolves is our main interest to quantify links between tectonics, climate and future evolution in response to global change. We study seismic hazards (dating earthquakes and determining rate of active faults), landslides and extreme coastal events (paleotsunamis).
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Rivers, deltas and coastal areas

The present state and past variability of fluvial and coastal systems are studied using hydrological and geomorphological characterization by remote sensing, in-situ measurements and modeling. Natural hazards (tsunamis, flooding, landslides...) and human influence (deltaic regions) are two applied research themes.
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Geochronometry and palaeoenvironments

Using different dating methods and paleoenvironmental reconstitution of paleo-, neo- and archaeological sites, we compare the evolution and resilience of human societies in their environmental context to the actual issues of global climate changes.
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Earth's magnetic field

Spatial and secular variations of the Earth’s magnetic field
  • Rapid secular variations: paleomagnetism / isotopic geochemistry (cosmogenic nuclides) coupling
  • Recent secular variations: archaeomagnetism (burnt clays and recent lava flows)
  • Crustal magnetic field anomalies: pressure experiments and numerical modeling
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Planetology

Solid bodies of the Solar System are studied: small bodies (asteroids), planets (Mars, Earth) and their satellites (Moon). Our time scale ranges from the early evolution of the Solar System (4.5 Ga) to recent surface processes (impact craters, tektites and ejectas).
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