My research focuses on subduction zone and mantle processes, as well as the chemical exchanges of the volatile species between the Earth's reservoirs (lithosphere, asthenosphere, hydrosphere, atmosphere). I also seek to better comprehend how the exchanges in volatiles between the Earth's surface and its deeper interior have contributed to sustain a habitable planet over geological timescales. To do this, I combine radiogenic and stable isotopic ratios, as well as trace element geochemistry, in situ volatile analyses, and petrology in tandem with field work.
Specifically, I seek to tackle the following scientific themes:
- The volatile cycle and their chemical exchanges between the Earth’s reservoirs.
- Subduction influxes and outfluxes, their spatio-temporal variations on Earth over geological times.
- Mantle heterogeneities and mantle flows.
- Mantle serpentinization, its role on the deep volatile cycle and arc magma generation.
- Petrogenesis of subduction-related lavas.
- Arc maturation and formation of continental crust
- Subduction initiation and evolution.