Recent advances in geochemical and petrological analysis, experimental studies, analogue and computational modelling, geophysics and remote sensing have significantly enhanced our ability to constrain the architecture of magmatic systems, assess timescales of magma evolution, quantify (isotope) fractionation processes, investigate critical transitions from dormancy to eruption, and elucidate how magma shapes the Earth’s crust. However, challenges remain, including estimating magma storage depths, understanding crystal-melt relationships, integrating temporal, thermal and rheological constraints to better link physical and geochemical models, and calibrating models with experimental and natural observations.
A thorough understanding of magmatic plumbing systems is crucial to advance our knowledge of volcanic hazards, crustal evolution, surface deformation related to magma emplacement, as well as ore mineralisation. This session aims to investigate the multitude of key processes operating in magmatic systems at all scales, from source to surface, such as: magma generation and transport, mixing, storage and the resulting associated deformation; mineral–melt–fluid reactions and fractionation; kinetic and equilibrium elemental and isotopic exchange. We invite contributions that rely on field observations, remote-sensing and geophysical techniques (e.g., InSAR, seismicity analysis and seismic imaging, gravity and electromagnetic studies), high-resolution geochemical data (major and trace elements as well as isotope ratios), thermodynamic, numerical and analogue modelling, geochronology and diffusion chronometry, machine learning, and experimental petrology to shed light on those processes and their timescales. Studies that combine various approaches (e.g. apply experimental or computational findings to case studies of natural systems) or develop new tools for understanding the complex evolution of magmatic systems are especially welcome.