Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/7980
DC Field | Value | Language |
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dc.contributor.authorall | Pondrelli, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Bologna, Bologna, Italia | en |
dc.contributor.authorall | Margheriti, L.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia | en |
dc.contributor.authorall | Baccheschi, P.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia | en |
dc.contributor.authorall | Piana Agostinetti, N.; Osservatorio Ximeniano, Firenze | en |
dc.contributor.authorall | Piccinini, D.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italia | en |
dc.contributor.authorall | Plomerova, J.; Geophysical Institute, Praga, Rep. Ceca | en |
dc.contributor.authorall | Amato, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia | en |
dc.contributor.authorall | Park, J.; Yale University, New Haven, USA | en |
dc.contributor.authorall | Brandon, M.; Yale University, New Haven, USA | en |
dc.contributor.authorall | RETREAT Seismology Team; INGV | en |
dc.date.accessioned | 2012-06-07T16:08:39Z | en |
dc.date.available | 2012-06-07T16:08:39Z | en |
dc.date.issued | 2005-04-24 | en |
dc.identifier.uri | http://hdl.handle.net/2122/7980 | en |
dc.description.abstract | We performed three-dimensional analysis of anisotropic parameters of body waves to develop a 3D self-consistent dynamic model of the syn-convergent extension in the Northern Apennines within the multidisciplinary project RETREAT. Simultaneous extension within the convergent margin can be the consequence of the retreat of the subducting Adriatic plate from the orogenic front, caused by sub-lithosphere mantle processes that seismic anisotropy can help to decipher. We use data recorded by the RETREAT temporary array consisting of 35 stations complemented by data of permanent INGV observatories. Currently, 18-months of data are available from some stations, representing half of the passive experiment duration. We detect many examples of core-refracted shear-wave splitting within the upper mantle, and observe both distinct lateral variations of anisotropic parameters and their dependence on the direction of propagation. In particular, the fast shear-wave polarization changes from slab-perpendicular to slab-parallel along the Apennines chain. There is also a distinct change in the anisotropic signals across the presumed boundary of the Tyrrhenian and Adriatic micro-plates. Variations of the splitting time delays and orientation of the fast shear waves, together with considerations on the geodynamics of the area, seem to exclude simple sub-lithosphere mantle corner flow as the only source of the observed anisotropy. Alternate models include (1) a frozen-in fabric of different lithosphere domains, and (2) complex mantle flow associated with the Plio-Pleisocene uplift and extension of Tuscany. | en |
dc.language.iso | English | en |
dc.relation.ispartof | EGU-European Geosciences Union | en |
dc.subject | anisotropy | en |
dc.subject | SKS shear wave splitting | en |
dc.subject | Northern Apennines | en |
dc.title | Lateral Changes of seismic anisotropy in the upper mantle around the Northern Apennines | en |
dc.type | Poster session | en |
dc.description.status | Published | en |
dc.subject.INGV | 04. Solid Earth::04.06. Seismology::04.06.07. Tomography and anisotropy | en |
dc.subject.INGV | 04. Solid Earth::04.06. Seismology::04.06.09. Waves and wave analysis | en |
dc.subject.INGV | 04. Solid Earth::04.07. Tectonophysics::04.07.02. Geodynamics | en |
dc.subject.INGV | 04. Solid Earth::04.07. Tectonophysics::04.07.06. Subduction related processes | en |
dc.description.ConferenceLocation | Vienna | en |
dc.description.obiettivoSpecifico | 3.3. Geodinamica e struttura dell'interno della Terra | en |
dc.description.fulltext | open | en |
dc.contributor.author | Pondrelli, S. | en |
dc.contributor.author | Margheriti, L. | en |
dc.contributor.author | Baccheschi, P. | en |
dc.contributor.author | Piana Agostinetti, N. | en |
dc.contributor.author | Piccinini, D. | en |
dc.contributor.author | Plomerova, J. | en |
dc.contributor.author | Amato, A. | en |
dc.contributor.author | Park, J. | en |
dc.contributor.author | Brandon, M. | en |
dc.contributor.author | RETREAT Seismology Team | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Bologna, Bologna, Italia | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione ONT, Roma, Italia | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione ONT, Roma, Italia | en |
dc.contributor.department | Osservatorio Ximeniano, Firenze | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italia | en |
dc.contributor.department | Geophysical Institute, Praga, Rep. Ceca | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione ONT, Roma, Italia | en |
dc.contributor.department | Yale University, New Haven, USA | en |
dc.contributor.department | Yale University, New Haven, USA | en |
dc.contributor.department | INGV | en |
item.openairetype | Poster session | - |
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 Bologna, Bologna, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione ONT, Roma, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Pisa, Pisa, Italia | - |
crisitem.author.dept | Geophysical Institute, Czech Academy of Sciences, Czech Republic | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione ONT, Roma, Italia | - |
crisitem.author.dept | Yale University, Dept. of Geology and Geophysics, New Haven, USA | - |
crisitem.author.dept | 0 | - |
crisitem.author.orcid | 0000-0002-0851-7405 | - |
crisitem.author.orcid | 0000-0003-3853-254X | - |
crisitem.author.orcid | 0000-0001-5383-7945 | - |
crisitem.author.orcid | 0000-0002-1826-646X | - |
crisitem.author.orcid | 0000-0002-9521-6570 | - |
crisitem.author.orcid | 0000-0002-2117-7118 | - |
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.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
Appears in Collections: | Conference materials |
Files in This Item:
File | Description | Size | Format | |
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AbstractEGU2005.pdf | conference abstract | 29.56 kB | Adobe PDF | View/Open |
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