Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/5872
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dc.contributor.authorallCianetti, Spina; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italiaen
dc.contributor.authorallGiunchi, Carlo; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italiaen
dc.date.accessioned2010-01-27T10:57:21Zen
dc.date.available2010-01-27T10:57:21Zen
dc.date.issued2009-12-14en
dc.identifier.urihttp://hdl.handle.net/2122/5872en
dc.description.abstractThe deformation recorded at Mount Etna during the last 15 years clearly shows that there is an interplay between activity of magmatic sources and instability of the SE sector. In particular, the anomalous sliding of the SE flank can be triggered by summit or flank eruptions (e.g., 2002), but it is also observed during quiescent loading phases (e.g., 1993-1997). This deformation is usually modeled by sub-horizontal dislocation surfaces (embedded in an elastic half space) whose parameters are determined fitting the observed surface deformation. The purpose of this paper is to investigate whether models forced by a simple isotropic expansion source but taking into account the internal structure of Mount Etna are capable to focus a significant amount of horizontal deformation in the eastern flank. We perform computations based on the finite element method along a 2D cross section. The deformation models include both topography and a synthetic reconstruction of the internal layering constrained by geology, seismic tomography and experimental measurements of Etnean rocks. We study the sensitivity of the predicted surface displacement to variations of internal layers rheology and/or mechanical parameters. Our first results suggest that significant contributions to increase the deformation in the SE sector are due to plastic rheology of the clay layers and to asymmetrical distribution of elastic parameters related to the high velocity body underneath Mount Etna imaged by seismic tomography.en
dc.language.isoEnglishen
dc.publisher.nameEos Trans. AGUen
dc.relation.ispartofAGU Fall meetingen
dc.subjectNumerical Modelingen
dc.titleFlank instability at Mount Etna: testing the sensitivity of forward models to the internal structureen
dc.typeAbstracten
dc.description.statusPublisheden
dc.identifier.URLhttp://agu-fm09.abstractcentral.com/planner?NEXT_PAGE=ITINERARY_ABS_DET_POP&SESSION_ABSTRACT_ID=499015&ABSTRACT_ID=716869&SESSION_ID=52611&PROGRAM_ID=2536en
dc.subject.INGV04. Solid Earth::04.08. Volcanology::04.08.99. General or miscellaneousen
dc.description.ConferenceLocationSan Franciscoen
dc.description.obiettivoSpecifico3.6. Fisica del vulcanismoen
dc.description.fulltextopenen
dc.contributor.authorCianetti, Spinaen
dc.contributor.authorGiunchi, Carloen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italiaen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italiaen
item.openairetypeAbstract-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextopen-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Pisa, Pisa, Italia-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Pisa, Pisa, Italia-
crisitem.author.orcid0000-0002-0690-7274-
crisitem.author.orcid0000-0002-0174-324X-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.classification.parent04. Solid Earth-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
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