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Title

Segmented Hellenic slab rollback driving Aegean deformation and seismicity

AuthorsSachpazi, M.; Laigle, M.; Diaz, J. CSIC ORCID ; Kissling, E.; Gesret, A.; Bécel, Anne CSIC ORCID; Flueh, E.; Miles, P.; Hirn, A.
KeywordsDense Receiver Functions 3-D seismic imaging of the SW Hellenic subduction; Piecewise roll back induces the Aegean mobility and deformation
Piecewise roll back induces the Aegean mobility and deformation; Slab top segmentation by along-dip faults
Issue Date2016
PublisherAmerican Geophysical Union
CitationGeophysical Research Letters : (2016)
AbstractThe NE dipping slab of the Hellenic subduction is imaged in unprecedented detail using teleseismic receiver function analysis on a dense 2-D seismic array. Mapping of slab geometry for over 300km along strike and down to 100km depth reveals a segmentation into dipping panels by along-dip faults. Resolved intermediate-depth seismicity commonly attributed to dehydration embrittlement is shown to be clustered along these faults. Large earthquakes occurrence within the upper and lower plate and at the interplate megathrust boundary show a striking correlation with the slab faults suggesting high mechanical coupling between the two plates. Our results imply that the general slab rollback occurs here in a differential piecewise manner imposing its specific stress and deformation pattern onto the overriding Aegean plate.
Publisher version (URL)http://dx.doi.org/10.1002/2015GL066818
URIhttp://hdl.handle.net/10261/128946
DOI10.1002/2015GL066818
ISSN0094-8276
E-ISSN1944-8007
Appears in Collections:(Geo3Bcn) Artículos




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