Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/13157
DC Field | Value | Language |
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dc.date.accessioned | 2020-02-11T07:39:04Z | en |
dc.date.available | 2020-02-11T07:39:04Z | en |
dc.date.issued | 2006 | en |
dc.identifier.uri | http://hdl.handle.net/2122/13157 | en |
dc.description.abstract | We present the results of a tomographic study performed in the framework of the 3F-Corinth project. The aim of this work is to better understand the rifting process by imaging the crustal structure of the western Gulf of Corinth. Forty-nine stations were deployed for a period of six months, allowing us to monitor the microseismicity. Delayed P and S first-arrival times have been simultaneously inverted for both hypocenter locations and 3-D velocity distributions. We use an improved linearized tomography method based on an accurate finite-difference travel-time computation to invert the data set. The obtained Vp and Vs models confirm the presence of a two-layer vertical structure characterized by a sharp velocity gradient lying at 5–7 km depth, which may be interpreted as a lithological contrast. The shallower part of the crust (down to 5 km depth) is controlled by the N-S extension and lacks seismicity. The deeper part (7–13 km depth) matches the seismogenic zone and is characterized by faster and more heterogeneous anomalies. In this zone, the background seismicity reveals a low-angle active surface dipping about 20° toward the north and striking WNW-ESE. The position of this active structure is consistent with both high Vp/Vs and low Vp.Vs anomalies identified at 8–12 km depth and suggesting a highly fracturated and fluid-saturated zone. Both the geometry of the active structure beneath the gulf and the presence of fluids at 8–12 km depth are in accordance with a low-angle detachment model for the western part of the Gulf of Corinth. | en |
dc.language.iso | English | en |
dc.relation.ispartof | Pure and Applied Geophysics | en |
dc.relation.ispartofseries | 2-3/163 (2006) | en |
dc.rights | CC0 1.0 Universal | en |
dc.rights.uri | http://creativecommons.org/publicdomain/zero/1.0/ | en |
dc.title | A New Passive Tomography of the Aigion Area (Gulf of Corinth, Greece) from the 2002 Data Set | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | 431–453 | en |
dc.identifier.doi | 10.1007/s00024-005-0033-7 | en |
dc.description.obiettivoSpecifico | 1T. Struttura della Terra | en |
dc.description.journalType | JCR Journal | en |
dc.contributor.author | Gautier, S. | en |
dc.contributor.author | Latorre, Diana | en |
dc.contributor.author | Virieux, J. | en |
dc.contributor.author | Deschamps, A. | en |
dc.contributor.author | Skarpelos, C | en |
dc.contributor.author | Sotiriou, A | en |
dc.contributor.author | Serpetsidaki, A | en |
dc.contributor.author | Tselentis, A. | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione ONT, Roma, 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 | G´eosciences Montpellier, UMR 5243 CNRS, University Montpellier 2, Montpellier, France | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione ONT, Roma, Italia | - |
crisitem.author.dept | UMR Geosciences Azur, Sophia Antipolis, France | - |
crisitem.author.dept | UPMC/OCA/UNS/INSU-CNRS/IRD | - |
crisitem.author.dept | University of Patras, Seismological Laboratory, Rio, Greece | - |
crisitem.author.orcid | 0000-0002-4594-0317 | - |
crisitem.author.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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Gautier_et_al_Pageoph_2006.pdf | 1.04 MB | Adobe PDF |
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