P22. Fluid emission in active tectonic and volcanic settings: The interplay among tectonic structures, geochemistry and triggering mechanisms

Surface fluid emission is a prominent phenomenon in active tectonic settings. It can be associated with the uprising and expulsion of hydrocarbon-bearing fluids, such as for mud volcano systems as well as CO2-rich springs and gas vents along tectonic structures. Besides, fluid expulsion can be associated with thermal waters surfacing in active geothermal settings, or may represent the evidence of active magmatic systems through the emission of volcanic gases at fumaroles, or through diffuse soil degassing. Regardless the origin of the fluids, the presence (or formation) of permeable pathways becomes necessary in order to allow fluid emission at surface. Nonetheless, the mechanisms that drive fluids to surface are strictly dependent on the tectonic and volcanic context and activity (e.g., seismic and volcanic triggering), and the kind and amount of gases dispersed in the fluid (and related overpressures). We seek for contributions highlighting the role and the interplay between the different factors controlling fluid emission both onshore and offshore in the above-mentioned settings (e.g., primary and secondary permeability quantification, geochemistry characterization, triggering mechanisms definition etc . . . ) using field and remote-based analysis, geophysical investigation, analogue and numerical modelling, and structural-geochemical integrated approaches. Submissions from early career researchers and students are particularly welcome.