Fluids play a fundamental role in Earth’s dynamic systems. Magmatism and metamorphism require the presence of fluids. As fluids are carriers of materials through the different levels of our planet, their global cycles efficiently transfer elements from the surface to the deep interior through subduction zones. Volatiles and other incompatible elements significantly contribute to the well-being and sustainability of life. While major uncertainties remain, advances in multi-disciplinary approaches continue to reveal how fluids exert a profound influence on planetary-scale processes.
This session brings together scientists investigating fluids and melts, focusing on the full spectrum of volatile and elemental cycles, and how they interact with the surrounding rocks at all scales. We welcome contributions from petrology, geochemistry, and related disciplines, drawing on natural samples, experiments, and modelling. Topics of interest include:
i) role of fluids in magmatic, metamorphic and metasomatic processes;
ii) deep volatile cycles of H₂O, CO₂, halogens and sulfur;
iii ) COHNS fluids and silicate melts role in volatile mobilization and transfer during subduction;
iv) physical and chemical properties of volatiles in melts and fluids;
v) volatile storage and release in the lithospheric mantle;
vi) petrological studies of fluid-rock interactions.