Dear Colleagues, Sorry for cross posting. It is a month away from the abstract submission deadline of the 2026 Goldschmidt conference in Montreal, Canada (July 12-17). We invite you to submit an abstract to Session 03a Subduction-zone chemical geodynamics (session in honor of Gray Bebout). Keynote speaker: Gray Bebout Session description: Element redistribution among mineral, fluid and melt in subduction zones has strong impact on crustal geochemical diversity (including ore genesis), mantle heterogeneity and surface environment. Gray Bebout's pioneering research investigating subduction-related metamorphic rocks has significantly advanced the understanding of the behavior of volatile and fluid-mobile elements in subduction zones and their applications to trace crust-mantle interaction, deep mantle recycling and surface emission. In honor of Gray Bebout's contributions, this session invites presentations of mineralogical, petrological, geochemical and/or thermodynamic insights from field observations, laboratory experiments, theoretical calculations, modeling and machine learning into the understanding of elemental mobility, flux and fate during processes across subduction zones (e.g., source enrichment, metamorphic fluid release, deep recycling and return to the surface) and their effects on long-term evolution of Earth's subsystems at various spatial and temporal scales. Session conveners: Long Li Sarah Penniston-Dorland Samuel Angiboust Taylor Ducharme Yunzhe Chen Abstract submission details can be found here: https://conf.goldschmidt.info/goldschmidt/2026/cfp.cgi We hope you can join us for this exciting session! -------- Long Li (he/him/his) Professor Department of Earth and Atmospheric Sciences 1-26 Earth Science Building University of Alberta Edmonton, Alberta T6G 2E3 Canada Phone: (+1) 780-492-9288 Email: long4@ualberta.ca