Goldschmidt 2023 – session on Melts in planetary interiors

Melts play a fundamental role in dynamic planetary interiors’ physical, thermal, and chemical evolution. They significantly impact a wide range of fundamental properties relevant to the crust, mantle, and core. These fundamental properties include transport properties (e.g., diffusivity, viscosity, electrical conductivity), density contrast/buoyancy, and large-scale chemical differentiation. Thus, understanding the role of melts in the formation, differentiation, and evolution of planetary interiors requires insight into the atomistic scale behaviour of melts at extreme conditions, pressures, temperatures, and oxidation states (fO₂). This session aims at bringing together a wide variety of solid Earth sub-disciplines including geophysics, geodynamics, geochemistry, petrology, volcanology, and mineralogists. The session will be an excellent forum to present the latest research on the physicochemical properties of melts, from the atomistic to planetary scale, and relevant topics may include, but are not limited to : the structure and physical properties of melts, thermodynamic modeling, partial melting, and phase relations, liquid-solid partitioning, novel experimental approaches, or geophysical detection of melt distribution in (exo)planetary interiors.