Tectonics: Earth, Time, Tracing (T4)

Volcans sur l'Altiplano-Puna, NW Argentin

A multidisciplinary team...

  • Themes and objectives
    • Understanding the dynamic functioning of the planet Earth (crust, mantle, evolution of the continental and oceanic lithosphere).
    • Understanding the origin of geological materials (nature, structure, history)
    • Variable spatial and temporal scales
    • From the field to modeling
    • Fluid-rock and metallogeny interactions
  • Methods
    • Tectonics and structural geology (analysis of the deformation, its history, at various scales)
    • Petrology (petrography, thermodynamic modeling, P-T estimates)
    • Geochronology and thermochronology (multi-method acquisition, statistical data processing)
    • Geochemistry (radiogenic and stable isotope tracing)
    • Analog/numerical modeling
  • Equipment
    • In isotopic geochemistry
    • In analog modeling
    • In geomaterials

Research themes

The goal of our group is to understand the interactions between fundamental geological processes such as tectonics, magmatism, metamorphism, the circulation of fluids on the crustal scale or on a more local scale and the associated resources, as well as the evolution of the landscape. This is done through field work as well as laboratory work and both analog and numerical modeling in addition to the implementation of a wide range of geochemical and geochronological analytical methods in order to constrain the absolute age, duration and intensity of these processes.

The geological features covered include mountain ranges (recent and ancient), passive or active margins, or cratons. More specifically, ongoing work is focused on these types of areas
in Mongolia, South Africa, Angola, Congo, Brazil, Argentina, Peru, Greece, Bulgaria, Turkey, Norway, Greenland, Finland, Canada, India, the French Antarctic territory Terre Adélie, the Ivory Coast and of course France (Brittany, Pyrenees, Alps, etc.).

Mont Gelé Alps

The research work focuses on the following major themes:

  • Dating of geological phenomena (Geochronology, Thermochronology)
  • Tracing geological fluids in the crust (Petrology, Stable isotopes, Geochronology)
  • Pressure-temperature-time pathways (Petrology, Geochronology, Tectonics)
  • Rheology of the lithosphere during extension and compression
  • Subduction dynamics (deformation, metamorphism, numerical modeling)
  • Salt tectonics