*EGU 2023- Fluid-rock interaction: Kickstarter of metamorphic, deformation and geo-engineering processes (GMPV5.1 TS1 - EDI)* Dear colleagues, We would like to invite you to submit an abstract to our EGU 2023 session that aims to investigate the impact of fluid-rock interactions on natural and geo-engineering processes in diverse lithospheric settings. Solicited speaker: Manuel Menzel, Spanish National Research Council Conveners: Francesco Giuntoli, Cindy Luisier, Oliver Plümper. At this link you find the description of the session: https://meetingorganizer.copernicus.org/EGU23/session/45161 The abstract deadline is 10 January 2023, 13:00 CET. We hope to see you numerous and wish you a nice weekend! Best regards, Francesco, Cindy, Oliver *______________* *EGU 2023- Fluid-rock interaction: Kickstarter of metamorphic, deformation and geo-engineering processes (GMPV5.1 TS1 - EDI)* Reactions between fluids and rocks have a fundamental impact on many of the natural and geo-engineering processes in crustal settings. Examples of such natural processes are localization of deformation, earthquake nucleation caused by high pressure fluid pulses, as well as metamorphic reactions and rheological weakening triggered by fluid flow, metasomatism and fluid-mediated mass transport. Moreover, the efficiency of many geo-engineering processes is partly dependent on fluid-rock interactions, such as hydraulic fracturing, geothermal energy recovery, CO2 storage and wastewater injection. All our observations in the rock record are the end-product of all metamorphic, metasomatic and deformation changes that occurred during the interaction with fluid. Therefore, to investigate and understand these complex and interconnected processes, it is required to merge knowledge and techniques deriving from several disciplines of the geosciences. We invite multidisciplinary contributions that investigate fluid-rock interactions throughout the entire breadth of the topic, using fieldwork, microstructural and petrographic analyses, geochemistry, experimental rock mechanics, thermodynamic modeling and numerical modeling.