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Title: Anatomy of a fumarolic system inferred from a multiphysics approach

Abstract

Fumaroles are a common manifestation of volcanic activity that are associated with large emissions of gases into the atmosphere. These gases originate from the magma, and they can provide indirect and unique insights into magmatic processes. Therefore, they are extensively used to monitor and forecast eruptive activity. During their ascent, the magmatic gases interact with the rock and hydrothermal fluids, which modify their geochemical compositions. These interactions can complicate our understanding of the real volcanic dynamics and remain poorly considered. Here, we present the first complete imagery of a fumarolic plumbing system using three-dimensional electrical resistivity tomography and new acoustic noise localization. We delineate a gas reservoir that feeds the fumaroles through distinct channels. Based 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. Such modeling of fluid interactions will allow for the simulation of dynamic processes of magmatic degassing, which is crucial to the monitoring of volcanic unrest.

Authors:
ORCiD logo [1];  [2];  [2]; ORCiD logo [3];  [2]; ORCiD logo [4];  [2]; ORCiD logo [5];  [2];  [6];  [7];  [7]; ORCiD logo [6]
  1. Univ. of Grenoble (France). Inst. of Earth Sciences (ISTerre); Univ. of Tokyo (Japan). Earthquake Research Inst.
  2. Univ. of Grenoble (France). Inst. of Earth Sciences (ISTerre)
  3. National Inst. of Geophysics and Volcanology (INGV), Bologna (Italy)
  4. Swiss Federal Inst. of Technology in Zurich (ETH Zurich) (Switzerland)
  5. National Inst. of Geophysics and Volcanology (INGV), Rome (Italy)
  6. National Inst. of Geophysics and Volcanology (INGV), Naples (Italy). Vesuvius Observatory
  7. Roma Tre Univ., Rome (Italy)
Publication Date:
Research Org.:
Univ. of Grenoble (France); National Inst. of Geophysics and Volcanology (INGV), Naples (Italy)
Sponsoring Org.:
USDOE; Rhône-Alpes Region (France); National Agency for Research (ANR) (France); European Union (EU)
OSTI Identifier:
1477420
Grant/Contract Number:  
AC02-05CH11231; CPER07_13 CIRA; ANR10 LABX56; ANR-10-EQPX-29-01; 308665
Resource Type:
Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 8; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES; geochemistry; geophysics; hydrogeology; seismology; volcanology

Citation Formats

Gresse, Marceau, Vandemeulebrouck, Jean, Byrdina, Svetlana, Chiodini, Giovanni, Roux, Philippe, Rinaldi, Antonio Pio, Wathelet, Marc, Ricci, Tullio, Letort, Jean, Petrillo, Zaccaria, Tuccimei, Paola, Lucchetti, Carlo, and Sciarra, Alessandra. Anatomy of a fumarolic system inferred from a multiphysics approach. United States: N. p., 2018. Web. doi:10.1038/s41598-018-25448-y.
Gresse, Marceau, Vandemeulebrouck, Jean, Byrdina, Svetlana, Chiodini, Giovanni, Roux, Philippe, Rinaldi, Antonio Pio, Wathelet, Marc, Ricci, Tullio, Letort, Jean, Petrillo, Zaccaria, Tuccimei, Paola, Lucchetti, Carlo, & Sciarra, Alessandra. Anatomy of a fumarolic system inferred from a multiphysics approach. United States. doi:10.1038/s41598-018-25448-y.
Gresse, Marceau, Vandemeulebrouck, Jean, Byrdina, Svetlana, Chiodini, Giovanni, Roux, Philippe, Rinaldi, Antonio Pio, Wathelet, Marc, Ricci, Tullio, Letort, Jean, Petrillo, Zaccaria, Tuccimei, Paola, Lucchetti, Carlo, and Sciarra, Alessandra. Tue . "Anatomy of a fumarolic system inferred from a multiphysics approach". United States. doi:10.1038/s41598-018-25448-y. https://www.osti.gov/servlets/purl/1477420.
@article{osti_1477420,
title = {Anatomy of a fumarolic system inferred from a multiphysics approach},
author = {Gresse, Marceau and Vandemeulebrouck, Jean and Byrdina, Svetlana and Chiodini, Giovanni and Roux, Philippe and Rinaldi, Antonio Pio and Wathelet, Marc and Ricci, Tullio and Letort, Jean and Petrillo, Zaccaria and Tuccimei, Paola and Lucchetti, Carlo and Sciarra, Alessandra},
abstractNote = {Fumaroles are a common manifestation of volcanic activity that are associated with large emissions of gases into the atmosphere. These gases originate from the magma, and they can provide indirect and unique insights into magmatic processes. Therefore, they are extensively used to monitor and forecast eruptive activity. During their ascent, the magmatic gases interact with the rock and hydrothermal fluids, which modify their geochemical compositions. These interactions can complicate our understanding of the real volcanic dynamics and remain poorly considered. Here, we present the first complete imagery of a fumarolic plumbing system using three-dimensional electrical resistivity tomography and new acoustic noise localization. We delineate a gas reservoir that feeds the fumaroles through distinct channels. Based 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. Such modeling of fluid interactions will allow for the simulation of dynamic processes of magmatic degassing, which is crucial to the monitoring of volcanic unrest.},
doi = {10.1038/s41598-018-25448-y},
journal = {Scientific Reports},
number = ,
volume = 8,
place = {United States},
year = {2018},
month = {5}
}

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