Minerals in Magmatic and Geothermal Systems
Geological Melts and Fluids Across Scales: Properties, Processes, and Planetary Implications
Co-Conveners
Yunguo Li, University of Science and Technology of China
Fabrice Gaillard, University of Orléans
Carmen Sanchez-Valle, University of Münster
Li Zhang, University of Science and Technology of China
Huaiwei Ni, University of Science and Technology of China
Melts and fluids are key agents of mass and energy transfer in the Earth’s interior. They drive degassing, crystallization, metasomatism, metamorphism, and ore-forming processes, and they modulate large-scale geodynamic and geochemical cycles. Direct observation for melts and fluids comes from natural samples (melt and fluid inclusions, mineral assemblages, volcanic gases), experimental simulations, and theoretical modeling, all of which provide unique insights into their structures, properties, and impacts. Because of their extreme reactivity, however, melts and fluids are often overprinted or obscured in natural records. This makes in situ approaches that often combine high pressure devices and advanced synchrotron techniques especially critical for capturing their transient properties and dynamics.
This session seeks to bring together mineralogists, petrologists, and geochemists working on natural, experimental, and computational aspects of melts and fluids. We welcome contributions on:
•Physicochemical properties of silicate, carbonate, brines, molten alloys, and volatile-rich melts and fluids
•Melt–fluid–mineral interactions and their roles in phase equilibria and metasomatism
•Volatile solubility, speciation, and transport in magmatic and metamorphic systems
•Experimental and modeling advances on the structure and dynamics of melts and fluids
•Melt and fluid inclusions as tracers of geological processes
•The roles of melts and fluids in ore formation and planetary processes
The aim of this interdisciplinary session is to highlight new perspectives on how melts and fluids shape Earth and planetary processes, while fostering dialogue across field-based, experimental, and theoretical approaches.
