One of the main goals in volcanology and petrology is to unravel the physico-chemical processes linking architectures and mechanisms acting in volcanic plumbing systems. These processes, which include magma fractionation, crustal assimilation, mixing processes and melt extraction, shearing, decompression, nucleation and growth of crystals and bubbles, fragmentation, take place during magma storage and ascent in polybaric plumbing regions, influencing eruptive activity and emplacement on Earthâ??s surface. Many efforts have been focused to disentangle the importance of these processes as well as their strictly interdependence. To date, in-situ monitoring and field studies represent the fundamental pillars of our knowledge on natural volcanic systems. Due to the inaccessibility to direct observation for many magmatic processes, new analytical and experimental techniques are continuously developed, broadening our comprehension of plumbing system dynamics through progresses in dataset consistency and accuracy. At the same time, numerical modelling represents an essential tool that can help to shed light on the complex correlations between system parameters and eruptive behavior. In this session, we encourage the volcanological, petrological and geochemical communities to share a broad spectrum of field-, experimental-, and numerical-based research, with the common aim of understanding magma and volcano behavior. 1-1-1-1-1-1-1-1-1-1-1-1-1-1 ------------------------------
