The explosivity of a volcanic eruption reflects the processes which occur as magma ascends from the Earth's interior towards the surface. Investigating the processes and timescales that control the physical and chemical evolution of magma within volcanic reservoirs and conduits is essential to provide insight into the eruptive style of volcanic eruptions, and, consequently, into volcanic hazard assessment and mitigation. Magmatic processes, such as crystallization, magma mixing and degassing, control magma differentiation and rheology, which in turn influence the remobilization of crystal mushes and cold magmas stored within the crust, the formation of eruptible magmas, magma ascent dynamics, magma fragmentation and, ultimately, eruptive behaviour.
Through the analysis of the textural, chemical, and isotopic characteristics of eruptive products we can elucidate the inner workings and the architecture of magma plumbing systems, as well as constrain pre- and syn-eruptive processes. Analytical/field observations, laboratory experiments and numerical modelling are fundamental tools for the investigation of pre- and syn-eruptive processes, and for understanding eruptive dynamics. This information is of paramount importance for policymakers in charge of mitigating the risks associated with volcanic activity.
In this session, we welcome petrological, geochemical, geophysical and volcanological studies that investigate the dynamics of magmatic processes within magma reservoirs and volcanic conduits through natural, experimental, and numerical-based approaches. Contributions that investigate the hazards associated with volcanic activity and interdisciplinary works that consider the close and complex interplay between magmatic processes, conduit dynamics, eruptive behaviour, and emplacement mechanisms are encouraged.