Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/9527
DC Field | Value | Language |
---|---|---|
dc.contributor.authorall | Byrdina, S.; ISTerre,Université de Savoie | en |
dc.contributor.authorall | Vandemeulebrouck, J.; ISTerre,Université de Savoie | en |
dc.contributor.authorall | Cardellini, C.; Università di Perugia | en |
dc.contributor.authorall | Legaz, A.; STerre,Université de Savoie | en |
dc.contributor.authorall | Camerlynck, C.; Sorbonne Université, UPMC-Université Paris 6 | en |
dc.contributor.authorall | Chiodini, C.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia | en |
dc.contributor.authorall | Lebourg, T.; Géoazur, UMR7329, France | en |
dc.contributor.authorall | Gresse, M.; ISTerre,Université de Savoie | en |
dc.contributor.authorall | Bascou, P.; ISTerre,Université de Savoie | en |
dc.contributor.authorall | Motos, G.; ISTerre,Université de Savoi | en |
dc.contributor.authorall | Carrier, A.; ISTerre,Université de Savoie | en |
dc.contributor.authorall | Caliro, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia | en |
dc.date.accessioned | 2015-04-16T09:20:57Z | en |
dc.date.available | 2015-04-16T09:20:57Z | en |
dc.date.issued | 2014 | en |
dc.identifier.uri | http://hdl.handle.net/2122/9527 | en |
dc.description.abstract | We present the results of an electric resistivity tomography (ERT) survey, combined with mappings of diffuse carbon dioxide flux, ground temperature and self-potential (SP) at Solfatara, the most active crater of Phlegrean Fields. Solfatara is characterized by an intense carbon dioxide degassing, fumarole activity, and ground deformation. This ensemble of methods is applied to image the hydrothermal system of Solfatara, to understand the geometry of the fluid circulation, and to define the extension of the hydrothermal plume at a high enough resolution for a quantitative modeling. ERT inversion results show Solfatara as a globally conductive structure, with resistivity in the range 1–200 Ω m. Broad negative anomaly of self-potential in the inner part of Solfatara with a minimum in the area of Bocca Grande suggests a significant downward flow of condensing liquid water. Comparison between spatial variations of resistivity and gas flux indicates that resistivity changes at depth are related to gas saturation and fluid temperature. These variations delineate two plume structures: a liquid-dominated conductive plume below Fangaia mud-pool and a gas-dominated plume below Bocca Grande fumarole. The geometry of the Fangaia liquid-saturated plume is also imaged by a high resolution 3-D resistivity model. In order to estimate the permeability, we propose a 2-D axis-symmetric numerical model coupling Richards equation for fluid flow in conditions of partial saturation with the resistivity calculation as function of saturation only. Alternatively, we apply the Dupuit equation to estimate the permeability of the shallow layer. Using these two approaches we obtain the permeability of the shallow layer below Fangaia which ranges between (2–4) × 10− 14 m2. | en |
dc.language.iso | English | en |
dc.publisher.name | Elsevier Science Limited | en |
dc.relation.ispartof | Journal of volcanology and geothermal research | en |
dc.relation.ispartofseries | /283 (2014) | en |
dc.relation.isversionof | http://www.sciencedirect.com/science/article/pii/S0377027314002212# | en |
dc.subject | Hydrothermal System | en |
dc.subject | Carbon dioxide flux | en |
dc.subject | Gas saturation | en |
dc.subject | Solfatara | en |
dc.title | Relations between electrical resistivity, carbon dioxide flux, and self-potential in the shallow hydrothermal system of Solfatara (Phlegrean Fields, Italy) | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | 172-182 | en |
dc.subject.INGV | 04. Solid Earth::04.08. Volcanology::04.08.99. General or miscellaneous | en |
dc.identifier.doi | 10.1016/j.jvolgeores.2014.07.010 | en |
dc.description.obiettivoSpecifico | 2V. Dinamiche di unrest e scenari pre-eruttivi | en |
dc.description.journalType | JCR Journal | en |
dc.description.fulltext | restricted | en |
dc.relation.issn | 0377-0273 | en |
dc.relation.eissn | 1872-6097 | en |
dc.contributor.author | Byrdina, S. | en |
dc.contributor.author | Vandemeulebrouck, J. | en |
dc.contributor.author | Cardellini, C. | en |
dc.contributor.author | Legaz, A. | en |
dc.contributor.author | Camerlynck, C. | en |
dc.contributor.author | Chiodini, C. | en |
dc.contributor.author | Lebourg, T. | en |
dc.contributor.author | Gresse, M. | en |
dc.contributor.author | Bascou, P. | en |
dc.contributor.author | Motos, G. | en |
dc.contributor.author | Carrier, A. | en |
dc.contributor.author | Caliro, S. | en |
dc.contributor.department | ISTerre,Université de Savoie | en |
dc.contributor.department | ISTerre,Université de Savoie | en |
dc.contributor.department | Università di Perugia | en |
dc.contributor.department | STerre,Université de Savoie | en |
dc.contributor.department | Sorbonne Université, UPMC-Université Paris 6 | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia | en |
dc.contributor.department | Géoazur, UMR7329, France | en |
dc.contributor.department | ISTerre,Université de Savoie | en |
dc.contributor.department | ISTerre,Université de Savoie | en |
dc.contributor.department | ISTerre,Université de Savoi | en |
dc.contributor.department | ISTerre,Université de Savoie | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia | en |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | restricted | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | LMV, Université Blaise Pascal, Clermont-Ferrand, France; Equipe de Géomagnétisme, IPGP, UMR 7154, 4, Place Jussieu, 75005 Paris, France | - |
crisitem.author.dept | Dipartimento di fisica e Geologia di Perugia | - |
crisitem.author.dept | STerre,Université de Savoie | - |
crisitem.author.dept | Sorbonne Université, UPMC-Université Paris 6 | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Bologna, Bologna, Italia | - |
crisitem.author.dept | Géosciences Azur UMR 6526, Nice, France | - |
crisitem.author.dept | Grenoble Alpes, Univ. Savoie Mont Blanc, CNRS, IRD, IFSTTAR, ISTerre, Grenoble, France, | - |
crisitem.author.dept | Grenoble Alpes, Univ. Savoie Mont Blanc, CNRS, IRD, IFSTTAR, ISTerre, Grenoble, France, | - |
crisitem.author.dept | ISTerre,Université de Savoi | - |
crisitem.author.dept | Department of Earth Sciences, University of Geneva, Geneva, Switzerland | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OV, Napoli, Italia | - |
crisitem.author.orcid | 0000-0002-2991-4215 | - |
crisitem.author.orcid | 0000-0002-0628-8055 | - |
crisitem.author.orcid | 0000-0001-5158-9343 | - |
crisitem.author.orcid | 0000-0002-8522-6695 | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
Appears in Collections: | Article published / in press |
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File | Description | Size | Format | Existing users please Login |
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relations.pdf | 2.95 MB | Adobe PDF |
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