Dear colleagues, we would like to draw your attention to the session GMPV 4.3 “What makes Earth so special? The role of melts and fluids in global volatile cycles” that will be held at the upcoming EGU2025 in Vienna (27 April - 2 May 2025). The session aims to bring together scientists working on the cycling of volatile elements, interested in the characterization of fluids and melts with multi-disciplinary approaches. We encourage you to send an abstract and join us in Vienna! Best Regards, Alessia Borghini, Carla Tiraboschi, Sally Gibson, Bruna B. Carvalho and Andrea Maffeis. ———————————————————————————————————— Session GMPV4.3 “What makes Earth so special? The role of melts and fluids in global volatile cycles”. Conveners: Alessia Borghini (AGH University of Krakow), Carla Tiraboschi (University of Perugia), Sally Gibson (University of Cambridge), Bruna B. Carvalho (University of Padua) and Andrea Maffeis (University of Milano Bicocca) Volatiles (e.g., H2O, CO2, Cl, F, S) play a fundamental role in Earth’s dynamic systems and profoundly contribute to the well-being and sustainability of life, making our planet unique. This is largely because volatiles influence planetary scale processes, including those that connect Earth’s deep and surface systems, such as melting, mineral stability and element mass transfer. These global cycles involve an efficient transfer of volatiles from our planet’s surface to its interior via subduction zones, mobilization by melts and fluids, and eventually emission to the atmosphere via volcanism. Volatiles may also be stored in the mantle, and possibly be re-mobilized. The investigation of volatiles in melts and fluids through novel and multi-disciplinary approaches continues to yield important insights into the inner workings of our planet. This session aims to gather contributions from scientists involved in the broad spectrum of volatile cycles, with a focus on the principal carriers of these elements: melts and fluids. We welcome contributions from the different fields of petrology and geochemistry, via investigations of natural samples and experimental studies. We particularly invite contributions on: i) deep volatile cycles of H2O, CO2, halogens and S; ii) volatile mobilization and transfer during subduction in COHNS fluids and silicate melts; iii) volatiles in metasomatic processes; iv) volatile properties in fluids and melts ; v) volatile storage in the lithospheric mantle; vi) volatile emissions and storage in volcanic systems. ———————————————————————————————————— The abstract submission deadline is 15th of January 2024 13:00 CET Submit an abstract here: https://meetingorganizer.copernicus.org/EGU25/session/53962 All information about abstract submission and deadlines: https://www.egu25.eu/home.html <https://www.egu25.eu/home.html> https://www.egu25.eu/programme/how_to_submit.html <https://www.egu25.eu/programme/how_to_submit.html>