Conveners:
Simone Tumiati (Università di Milano Statale)
Federico Casetta (Università di Vienna)
Martina Casalini (Università di Firenze)
The Earth's mantle is a heterogeneous and reactive system whose evolution is governed by melt generation, melt and fluid migration, and solid–melt–fluid interaction operating across different tectonic environments. Mantle petrology provides a unifying framework to investigate these processes, linking mineral assemblages, reaction textures, and phase equilibria to the physical conditions under which mantle domains evolve.
This session focuses on petrological processes shaping the mantle beneath oceanic, continental, and subduction-related settings. Contributions are encouraged that explore melt extraction and refertilization in the oceanic mantle, reactive melt percolation and hybrid lithologies in lithospheric mantle domains, and the modification of the mantle wedge by crust- and slab-derived fluids and melts. Particular attention is given to how these processes control the generation, transport, and storage of melts, and ultimately influence magma compositions in mid-ocean ridges, intraplate settings, and volcanic arcs.
Natural mantle rocks (peridotite–pyroxenite massifs, abyssal peridotites, ophiolitic sections, xenoliths), high-pressure phases and inclusions, and mantle-derived magmatic products provide key records of mantle processes across tectonic settings. Contributions integrating field observations, experiments, and thermodynamic, kinetic, or numerical modeling, supported by mineralogical, microstructural, geochemical, and isotopic constraints, are particularly encouraged.