The Subduction Top to Bottom (ST2B) pursuit has highlighted and fostered multidisciplinary research on subduction margins, gathering together scientists representing the full array of approaches and perspectives. In this session, we focus attention on all components of and processes in forearcs, both modern and ancient, and their role in subduction dynamics. Our intent is that diverse participants share ideas on aspects of forearc evolution, such as thermal structure, the diagenetic to metamorphic pathway, frontal accretion and deeper underplating, deformation of the overlying and subducting plates, including the cold forearc mantle wedge corner, and the generation of seismicity (shallow crustal, megathrust, and intraplate earthquakes) and slow slip events in all parts of forearcs. We hope to stimulate discussion among geodynamic modelers, those making geophysical observations at modern margins, and those investigating ancient subduction through structural, petrologic, geochemical, and geochronological study of metamorphosed fragments of slabs, subducted sediments, interfaces, and hanging-walls.

• EGU: European Geosciences Union -
• GS: Geochemical Society -
• GSA: Geological Society of America -
• JpGU: Japan Geoscience Union -