@article{fdi:010072860, title = {{A}natomy of a fumarolic system inferred from a multiphysics approach}, author = {{G}resse, {M}. and {V}andemeulebrouck, {J}. and {B}yrdina, {S}vetlana and {C}hiodini, {G}. and {R}oux, {P}. and {R}inaldi, {A}. {P}. and {W}athelet, {M}arc and {R}icci, {T}. and {L}etort, {J}. and {P}etrillo, {Z}. and {T}uccimei, {P}. and {L}ucchetti, {C}. and {S}ciarra, {A}.}, editor = {}, language = {{ENG}}, abstract = {{F}umaroles are a common manifestation of volcanic activity that are associated with large emissions of gases into the atmosphere. {T}hese gases originate from the magma, and they can provide indirect and unique insights into magmatic processes. {T}herefore, they are extensively used to monitor and forecast eruptive activity. {D}uring their ascent, the magmatic gases interact with the rock and hydrothermal fluids, which modify their geochemical compositions. {T}hese interactions can complicate our understanding of the real volcanic dynamics and remain poorly considered. {H}ere, we present the first complete imagery of a fumarolic plumbing system using three-dimensional electrical resistivity tomography and new acoustic noise localization. {W}e delineate a gas reservoir that feeds the fumaroles through distinct channels. {B}ased on this geometry, a thermodynamic model reveals that near-surface mixing between gas and condensed steam explains the distinct geochemical compositions of fumaroles that originate from the same source. {S}uch modeling of fluid interactions will allow for the simulation of dynamic processes of magmatic degassing, which is crucial to the monitoring of volcanic unrest.}, keywords = {{ITALIE} ; {VESUVE}}, booktitle = {}, journal = {{S}cientific {R}eports - {N}ature}, volume = {8}, numero = {}, pages = {art. 7580 [11 p.]}, ISSN = {2045-2322}, year = {2018}, DOI = {10.1038/s41598-018-25448-y}, URL = {https://www.documentation.ird.fr/hor/fdi:010072860}, }