  Magmas form at depth, move upwards and evolve chemically through a
combination of processes. Magmatic processes are investigated by means of
fieldwork combined with geophysics, geochemistry, analog and numerical models,
and many other approaches. However, scientists in the field still struggle to
understand how the variety of magmatic products arises, and there is no
consensus yet on models of volcanic plumbing systems. This is because eruptions
result from the integration of multiple processes, rooted in the magma source
either in the mantle or lower crust that feeds a complex network of magma
bodies linking magma source and volcano. In this work, we investigate the
potential of the network approach through a prototype of magma pool interaction
and magma transfer across the crust. In network terms, it describes a diffusion
process on a dynamic spatial network, in which diffusion and network evolution
are intertwined: the diffusion affects the network structure, and reciprocally.
The diffusion process and network evolution mechanisms come from rules of
behaviour derived from rock mechanics and melting processes. Nodes represent
magma pools and edges physical connections between them, e.g., dykes or
veinlets.
