Volatile elements play a key role in many major Earth processes including convection, plate tectonics and volcanism. This session aims to gather researchers investigating all aspects of the deep cycling of volatiles (hydrogen, carbon, sulphur, nitrogen, noble gases, halogens), using experimental, field-based or computational approaches. This may include analytical developments, the study of volatile speciation, abundance and solubility in minerals, fluids or melts, the investigation of volatile mobility and their fluxes between different reservoirs. We also encourage contributions dealing with the effects of volatiles on mineral, rock and magma properties and their interaction with the redox state of the interior. Studies on the origin of terrestrial volatiles and their implications for Earth’s large-scale geodynamic processes are also welcome.

The Keynote speaker will be Nathalie Bolfan-Casanova (CNRS, Université Clermont-Ferrand, France)