Over 4.5 billion years of dynamic evolution has shaped the Earth’s surface and interior, from core formation, magma ocean crystallisation, and mantle plumes, to crustal formation and recycling processes. These processes are recorded in volcanic rocks spanning a temporal range reaching back to the Archean, shaping our ongoing understanding of Earth's mantle chemistry and structure. In this endeavour of understanding deep Earth processes and how they shape planetary physiochemical evolution, integrating multiple fields of study is essential.

This session aims to provide a comprehensive dialogue on the processes that shaped Earth’s chemically heterogeneous mantle that is recorded in mantle-derived rocks. This includes research on Hadean to modern geodynamic processes such as magma ocean differentiation, core-mantle exchange, subduction, plume and oceanic volcanism by use of novel and standard geochemical methods. This may further include interdisciplinary studies from geodynamics and seismology with implications for the chemical composition of Earth’s mantle and mantle-derived rocks.