Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/1675
DC Field | Value | Language |
---|---|---|
dc.contributor.authorall | Bianco, F.; Osservatorio Vesuviano, Ercolano, Napoli, Italy | en |
dc.contributor.authorall | Castellano, M.; Osservatorio Vesuviano, Ercolano, Napoli, Italy | en |
dc.contributor.authorall | Milano, G.; Osservatorio Vesuviano, Ercolano, Napoli, Italy | en |
dc.contributor.authorall | Vilardo, G.; Osservatorio Vesuviano, Ercolano, Napoli, Italy | en |
dc.date.accessioned | 2006-09-21T14:49:50Z | en |
dc.date.available | 2006-09-21T14:49:50Z | en |
dc.date.issued | 1996-03 | en |
dc.identifier.uri | http://hdl.handle.net/2122/1675 | en |
dc.description.abstract | Recently, with the improvement of three-component seismic networks, studies revealing anisotropic characteristics in different regions have assumed great interest. In a complex volcanic area like Mt. Etna (Sicily, Italy), the existence of both iso-oriented fault systems and intrusive bodies consisting of olivine and clinopyroxene suggest the presence of anisotropic structures. In order to investigate this we analyzed the physical phenomenon of shear-wave splitting since under certain constraints, shear waves are less sensitive to local heterogeneity. The aims of this paper are: 1) to evaluate if in a structural complex situation like that at Mt. Etna the signal crossing an anisotropic volume could be enhanced in spite of effects due to undirectional properties along the source-receiver path; 2) to investigate the correlations, if any, between polarization direction of the leading shear wave and the patterns of compressive stress acting on the investigated area. Therefore we measured time-delays between the S-onsets on the horizontal components of 3D seismograms to reveal the possible seismic anisotropy in the Etnean region; moreover, we analyzed the polarization vector of shear-waves seismic data recorded during a survey carried out in the spring-summer 1988. We found clear evidence of splitting that we attributed to the presence of an anisotropic volume not homogeneously distributed on the eastern slope of Mt. Etna volcano. | en |
dc.format.extent | 3618886 bytes | en |
dc.format.mimetype | application/pdf | en |
dc.language.iso | English | en |
dc.relation.ispartofseries | 2/39 (1996) | en |
dc.subject | anisotropy | en |
dc.subject | Mt. Etna | en |
dc.subject | polarisation | en |
dc.subject | splitting | en |
dc.subject | S-wave | en |
dc.title | Shear-wave polarization alignment on the eastern flank of Mt. Etna volcano (Sicily, Italy) | en |
dc.type | article | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.subject.INGV | 04. Solid Earth::04.06. Seismology::04.06.08. Volcano seismology | en |
dc.description.journalType | JCR Journal | en |
dc.description.fulltext | open | en |
dc.contributor.author | Bianco, F. | en |
dc.contributor.author | Castellano, M. | en |
dc.contributor.author | Milano, G. | en |
dc.contributor.author | Vilardo, G. | en |
dc.contributor.department | Osservatorio Vesuviano, Ercolano, Napoli, Italy | en |
dc.contributor.department | Osservatorio Vesuviano, Ercolano, Napoli, Italy | en |
dc.contributor.department | Osservatorio Vesuviano, Ercolano, Napoli, Italy | en |
dc.contributor.department | Osservatorio Vesuviano, Ercolano, Napoli, Italy | en |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OV, Napoli, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OV, Napoli, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OV, Napoli, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OV, Napoli, Italia | - |
crisitem.author.orcid | 0000-0001-5400-7724 | - |
crisitem.author.orcid | 0000-0003-1166-3486 | - |
crisitem.author.orcid | 0000-0001-5137-684X | - |
crisitem.author.orcid | 0000-0001-7240-4467 | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.classification.parent | 04. Solid Earth | - |
Appears in Collections: | Annals of Geophysics |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
18 bianco.pdf | 3.53 MB | Adobe PDF | View/Open |
Page view(s)
156
checked on Mar 27, 2024
Download(s) 50
175
checked on Mar 27, 2024