The core-mantle boundary plays a fundamental role in the evolution of Earth and rocky planets through major influence on core and mantle convection, core dynamo behavior, length-of-day variations, and volatile cycling. On Earth, the region hosts multi-scale structures implicated in plume generation, slab debris, and the likely presence of chemical primordial reservoirs and core-mantle exchanges. Ongoing work continues to shed new light and raise new questions about this complex region within Earth and its possible significance for rocky planet evolution more broadly, particularly in light of growing constraints on planetary interiors from recent and upcoming mission data. In this session, we invite contributions from a wide range of fields including geochemistry, experimental petrology, seismic and broader geophysical exploration, geodynamic modeling, and mineral physics. In particular, we welcome interdisciplinary approaches that can shed novel insights on both core and mantle phenomena across this remote but critical boundary layer.

• MR - Mineral and Rock Physics
• P - Planetary Sciences
• S - Seismology
• V - Volcanology, Geochemistry and Petrology