Geodetic constraints on the tectonic evolution of the Aegean region and strain accumulation along the Hellenic subduction zone

Reilinger, R; McClusky, S; Paradissis, D; Ergintav, S; Vernant, P

dc.contributor.author	Reilinger, R	en
dc.contributor.author	McClusky, S	en
dc.contributor.author	Paradissis, D	en
dc.contributor.author	Ergintav, S	en
dc.contributor.author	Vernant, P	en
dc.date.accessioned	2014-03-01T01:33:34Z
dc.date.available	2014-03-01T01:33:34Z
dc.date.issued	2010	en
dc.identifier.issn	0040-1951	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/20465
dc.subject	Aegean neotectonics	en
dc.subject	Earthquake hazards	en
dc.subject	Geodynamics	en
dc.subject	Global Positioning System	en
dc.subject.classification	Geochemistry & Geophysics	en
dc.subject.other	Aegean sea	en
dc.subject.other	Crustal thinning	en
dc.subject.other	Differential velocity	en
dc.subject.other	Earthquake hazard	en
dc.subject.other	Earthquake hazards	en
dc.subject.other	Fault system	en
dc.subject.other	Fault-slip rates	en
dc.subject.other	Geodetic constraints	en
dc.subject.other	Hellenic subduction zone	en
dc.subject.other	Internal deformation	en
dc.subject.other	Late Miocene	en
dc.subject.other	Low level	en
dc.subject.other	Marmara Sea	en
dc.subject.other	Mediterranean region	en
dc.subject.other	Neotectonics	en
dc.subject.other	North Anatolian Fault	en
dc.subject.other	Plate interfaces	en
dc.subject.other	Plate motions	en
dc.subject.other	Strain accumulations	en
dc.subject.other	Subduction zones	en
dc.subject.other	Tectonic evolution	en
dc.subject.other	Transform fault	en
dc.subject.other	Earthquakes	en
dc.subject.other	Geodetic satellites	en
dc.subject.other	Geodynamics	en
dc.subject.other	Global positioning system	en
dc.subject.other	Plates (structural components)	en
dc.subject.other	Tectonics	en
dc.subject.other	Uncertainty analysis	en
dc.subject.other	Wavelet transforms	en
dc.subject.other	Strain rate	en
dc.subject.other	crustal thinning	en
dc.subject.other	extensional tectonics	en
dc.subject.other	fault slip	en
dc.subject.other	geodesy	en
dc.subject.other	geodynamics	en
dc.subject.other	GPS	en
dc.subject.other	neotectonics	en
dc.subject.other	North Anatolian Fault	en
dc.subject.other	plate motion	en
dc.subject.other	strain rate	en
dc.subject.other	subduction zone	en
dc.subject.other	tectonic evolution	en
dc.subject.other	Aegean Sea	en
dc.subject.other	Gulf of Corinth	en
dc.subject.other	Ionian Sea	en
dc.subject.other	Mediterranean Sea	en
dc.subject.other	Sea of Marmara	en
dc.subject.other	Turkey	en
dc.title	Geodetic constraints on the tectonic evolution of the Aegean region and strain accumulation along the Hellenic subduction zone	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.tecto.2009.05.027	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.tecto.2009.05.027	en
heal.language	English	en
heal.publicationDate	2010	en
heal.abstract	We present evidence that GPS velocity estimates of plate motions and fault slip rates agree to within uncertainties with geologic estimates during the most recent phase of the geologic evolution of the E Mediterranean region (post-Late Miocene). On this basis, we use the GPS differential velocities to estimate the timing of initiation of the principal structures in NW Turkey, the N Aegean Sea, and central Greece, including, the Marmara Sea, the Gulfs of Evia (GoE) and Corinth (GoC). and the Kephalonia Transform fault (KTF). We interpret these ages to indicate that the North Anatolian fault propagated across the N Aegean, opening the GoE and GoC and initiating the KTF, during the past 1-4 Ma. We further suggest that Aegean extension that was earlier more distributed across the Aegean Basin became focused on this new fault system allowing the southern Aegean and Peloponnisos to translate SW with little internal deformation, as observed today with GPS. This change in tectonic configuration may account for the clear geologic evidence for crustal thinning throughout the S Aegean in apparent contradiction with low present-day strain rates. We further show that the low present-day strain rate along the southern edge of the Aegean micro-plate requires substantial aseismic slip along the plate interface below Crete, consistent with the low level of historic, subduction-type earthquakes along this segment of the subduction zone. (C) 2009 Elsevier B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Tectonophysics	en
dc.identifier.doi	10.1016/j.tecto.2009.05.027	en
dc.identifier.isi	ISI:000279624200003	en
dc.identifier.volume	488	en
dc.identifier.issue	1-4	en
dc.identifier.spage	22	en
dc.identifier.epage	30	en