3D ultra-high resolution seismic imaging of shallow Solfatara crater in Campi Flegrei (Italy): New insights on deep hydrothermal fluid circulation processes
Identifieur interne : 000004 ( Pmc/Checkpoint ); précédent : 000003; suivant : 0000053D ultra-high resolution seismic imaging of shallow Solfatara crater in Campi Flegrei (Italy): New insights on deep hydrothermal fluid circulation processes
Auteurs : Grazia De Landro [Italie] ; Vincenzo Serlenga [Italie] ; Guido Russo [Italie] ; Ortensia Amoroso [Italie] ; Gaetano Festa [Italie] ; Pier Paolo Bruno [Émirats arabes unis] ; Marceau Gresse [France] ; Jean Vandemeulebrouck [France] ; Aldo Zollo [Italie]Source :
- Scientific Reports [ 2045-2322 ] ; 2017.
Abstract
Seismic tomography can be used to image the spatial variation of rock properties within complex geological media such as volcanoes. Solfatara is a volcano located within the Campi Flegrei, a still active caldera, so it is of major importance to characterize its level of activity and potential danger. In this light, a 3D tomographic high-resolution P-wave velocity image of the shallow central part of Solfatara crater is obtained using first arrival times and a
Url:
DOI: 10.1038/s41598-017-03604-0
PubMed: 28611382
PubMed Central: 5469761
Affiliations:
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<front><div type="abstract" xml:lang="en"><p>Seismic tomography can be used to image the spatial variation of rock properties within complex geological media such as volcanoes. Solfatara is a volcano located within the Campi Flegrei, a still active caldera, so it is of major importance to characterize its level of activity and potential danger. In this light, a 3D tomographic high-resolution P-wave velocity image of the shallow central part of Solfatara crater is obtained using first arrival times and a <italic>multiscale</italic>
approach. The retrieved images, integrated with the resistivity section and temperature and the CO<sub>2</sub>
flux measurements, define the following characteristics: 1. A depth-dependent P-wave velocity layer down to 14 m, with V<sub>p</sub>
< 700 m/s typical of poorly-consolidated tephra and affected by CO<sub>2</sub>
degassing; 2. An intermediate layer, deepening towards the mineralized liquid-saturated area (Fangaia), interpreted as permeable deposits saturated with condensed water; 3. A deep, confined high velocity anomaly associated with a CO<sub><bold>2</bold>
</sub>
reservoir. These features are expression of an area located between the Fangaia, water saturated and replenished from deep aquifers, and the main fumaroles, superficial relief of the deep rising CO<sub>2</sub>
flux. Therefore, the changes in the outgassing rate greatly affect the shallow hydrothermal system, which can be used as a “mirror” of fluid migration processes occurring at depth.</p>
</div>
</front>
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<pmc article-type="research-article"><pmc-dir>properties open_access</pmc-dir>
<front><journal-meta><journal-id journal-id-type="nlm-ta">Sci Rep</journal-id>
<journal-id journal-id-type="iso-abbrev">Sci Rep</journal-id>
<journal-title-group><journal-title>Scientific Reports</journal-title>
</journal-title-group>
<issn pub-type="epub">2045-2322</issn>
<publisher><publisher-name>Nature Publishing Group UK</publisher-name>
<publisher-loc>London</publisher-loc>
</publisher>
</journal-meta>
<article-meta><article-id pub-id-type="pmid">28611382</article-id>
<article-id pub-id-type="pmc">5469761</article-id>
<article-id pub-id-type="publisher-id">3604</article-id>
<article-id pub-id-type="doi">10.1038/s41598-017-03604-0</article-id>
<article-categories><subj-group subj-group-type="heading"><subject>Article</subject>
</subj-group>
</article-categories>
<title-group><article-title>3D ultra-high resolution seismic imaging of shallow Solfatara crater in Campi Flegrei (Italy): New insights on deep hydrothermal fluid circulation processes</article-title>
</title-group>
<contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">http://orcid.org/0000-0003-1136-1357</contrib-id>
<name><surname>De Landro</surname>
<given-names>Grazia</given-names>
</name>
<address><email>delandro@fisica.unina.it</email>
</address>
<xref ref-type="aff" rid="Aff1">1</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Serlenga</surname>
<given-names>Vincenzo</given-names>
</name>
<xref ref-type="aff" rid="Aff1">1</xref>
<xref ref-type="aff" rid="Aff4">4</xref>
</contrib>
<contrib contrib-type="author"><contrib-id contrib-id-type="orcid">http://orcid.org/0000-0001-9268-8647</contrib-id>
<name><surname>Russo</surname>
<given-names>Guido</given-names>
</name>
<xref ref-type="aff" rid="Aff1">1</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Amoroso</surname>
<given-names>Ortensia</given-names>
</name>
<xref ref-type="aff" rid="Aff1">1</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Festa</surname>
<given-names>Gaetano</given-names>
</name>
<xref ref-type="aff" rid="Aff1">1</xref>
</contrib>
<contrib contrib-type="author"><contrib-id contrib-id-type="orcid">http://orcid.org/0000-0003-2622-3037</contrib-id>
<name><surname>Bruno</surname>
<given-names>Pier Paolo</given-names>
</name>
<xref ref-type="aff" rid="Aff2">2</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Gresse</surname>
<given-names>Marceau</given-names>
</name>
<xref ref-type="aff" rid="Aff3">3</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Vandemeulebrouck</surname>
<given-names>Jean</given-names>
</name>
<xref ref-type="aff" rid="Aff3">3</xref>
</contrib>
<contrib contrib-type="author"><contrib-id contrib-id-type="orcid">http://orcid.org/0000-0002-8191-9566</contrib-id>
<name><surname>Zollo</surname>
<given-names>Aldo</given-names>
</name>
<xref ref-type="aff" rid="Aff1">1</xref>
</contrib>
<aff id="Aff1"><label>1</label>
<institution-wrap><institution-id institution-id-type="ISNI">0000 0001 0790 385X</institution-id>
<institution-id institution-id-type="GRID">grid.4691.a</institution-id>
<institution>Department of physics “Ettore Pancini”,</institution>
<institution>University of Naples ”Federico II”,</institution>
</institution-wrap>
Naples, Italy</aff>
<aff id="Aff2"><label>2</label>
<institution-wrap><institution-id institution-id-type="ISNI">0000 0004 1796 0286</institution-id>
<institution-id institution-id-type="GRID">grid.452820.9</institution-id>
<institution></institution>
<institution>Petroleum Institute, Department of Petroleum Geosciences,</institution>
</institution-wrap>
Abu Dhabi, United Arab Emirates</aff>
<aff id="Aff3"><label>3</label>
<institution-wrap><institution-id institution-id-type="GRID">grid.5388.6</institution-id>
<institution></institution>
<institution>ISTerre, Université Savoie Mont Blanc,</institution>
</institution-wrap>
Chambéry, France</aff>
<aff id="Aff4"><label>4</label>
<institution-wrap><institution-id institution-id-type="GRID">grid.466609.b</institution-id>
<institution></institution>
<institution>Now at Consiglio Nazionale delle Ricerche, Istituto di Metodologie per l’Analisi Ambientale,</institution>
</institution-wrap>
Tito, Italy</aff>
</contrib-group>
<pub-date pub-type="epub"><day>13</day>
<month>6</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="pmc-release"><day>13</day>
<month>6</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="collection"><year>2017</year>
</pub-date>
<volume>7</volume>
<elocation-id>3412</elocation-id>
<history><date date-type="received"><day>14</day>
<month>10</month>
<year>2016</year>
</date>
<date date-type="accepted"><day>9</day>
<month>5</month>
<year>2017</year>
</date>
</history>
<permissions><copyright-statement>© The Author(s) 2017</copyright-statement>
<license license-type="OpenAccess"><license-p><bold>Open Access</bold>
This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit <ext-link ext-link-type="uri" xlink:href="http://creativecommons.org/licenses/by/4.0/">http://creativecommons.org/licenses/by/4.0/</ext-link>
.</license-p>
</license>
</permissions>
<abstract id="Abs1"><p>Seismic tomography can be used to image the spatial variation of rock properties within complex geological media such as volcanoes. Solfatara is a volcano located within the Campi Flegrei, a still active caldera, so it is of major importance to characterize its level of activity and potential danger. In this light, a 3D tomographic high-resolution P-wave velocity image of the shallow central part of Solfatara crater is obtained using first arrival times and a <italic>multiscale</italic>
approach. The retrieved images, integrated with the resistivity section and temperature and the CO<sub>2</sub>
flux measurements, define the following characteristics: 1. A depth-dependent P-wave velocity layer down to 14 m, with V<sub>p</sub>
< 700 m/s typical of poorly-consolidated tephra and affected by CO<sub>2</sub>
degassing; 2. An intermediate layer, deepening towards the mineralized liquid-saturated area (Fangaia), interpreted as permeable deposits saturated with condensed water; 3. A deep, confined high velocity anomaly associated with a CO<sub><bold>2</bold>
</sub>
reservoir. These features are expression of an area located between the Fangaia, water saturated and replenished from deep aquifers, and the main fumaroles, superficial relief of the deep rising CO<sub>2</sub>
flux. Therefore, the changes in the outgassing rate greatly affect the shallow hydrothermal system, which can be used as a “mirror” of fluid migration processes occurring at depth.</p>
</abstract>
<custom-meta-group><custom-meta><meta-name>issue-copyright-statement</meta-name>
<meta-value>© The Author(s) 2017</meta-value>
</custom-meta>
</custom-meta-group>
</article-meta>
</front>
</pmc>
<affiliations><list><country><li>France</li>
<li>Italie</li>
<li>Émirats arabes unis</li>
</country>
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<tree><country name="Italie"><noRegion><name sortKey="De Landro, Grazia" sort="De Landro, Grazia" uniqKey="De Landro G" first="Grazia" last="De Landro">Grazia De Landro</name>
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<name sortKey="Amoroso, Ortensia" sort="Amoroso, Ortensia" uniqKey="Amoroso O" first="Ortensia" last="Amoroso">Ortensia Amoroso</name>
<name sortKey="Festa, Gaetano" sort="Festa, Gaetano" uniqKey="Festa G" first="Gaetano" last="Festa">Gaetano Festa</name>
<name sortKey="Russo, Guido" sort="Russo, Guido" uniqKey="Russo G" first="Guido" last="Russo">Guido Russo</name>
<name sortKey="Serlenga, Vincenzo" sort="Serlenga, Vincenzo" uniqKey="Serlenga V" first="Vincenzo" last="Serlenga">Vincenzo Serlenga</name>
<name sortKey="Serlenga, Vincenzo" sort="Serlenga, Vincenzo" uniqKey="Serlenga V" first="Vincenzo" last="Serlenga">Vincenzo Serlenga</name>
<name sortKey="Zollo, Aldo" sort="Zollo, Aldo" uniqKey="Zollo A" first="Aldo" last="Zollo">Aldo Zollo</name>
</country>
<country name="Émirats arabes unis"><noRegion><name sortKey="Bruno, Pier Paolo" sort="Bruno, Pier Paolo" uniqKey="Bruno P" first="Pier Paolo" last="Bruno">Pier Paolo Bruno</name>
</noRegion>
</country>
<country name="France"><noRegion><name sortKey="Gresse, Marceau" sort="Gresse, Marceau" uniqKey="Gresse M" first="Marceau" last="Gresse">Marceau Gresse</name>
</noRegion>
<name sortKey="Vandemeulebrouck, Jean" sort="Vandemeulebrouck, Jean" uniqKey="Vandemeulebrouck J" first="Jean" last="Vandemeulebrouck">Jean Vandemeulebrouck</name>
</country>
</tree>
</affiliations>
</record>
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