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Kinematics of the kahramanmaraş triple junction and of Cyprus: evidence of shear partitioning

2024Journal article Open access
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dc.contributor.authorÖzbey, Volkan
dc.contributor.authorSengör, Ali Mehmet Celâl
dc.contributor.authorHenry, Pierre
dc.contributor.authorÖzeren, Mehmet Sinan
dc.contributor.authorHaines, A. John
dc.contributor.authorKlein, Elliot C.
dc.contributor.authorTarı, Ergin
dc.contributor.authorZabcı, Cengiz
dc.contributor.authorChousianitis, Konstantinos
dc.contributor.authorGüvercin, Sezim Ezgi
dc.contributor.authorOgretmen, Nazik
dc.date.accessioned2024-11-07T13:58:23Z
dc.date.available2024-11-07T13:58:23Z
dc.date.issued2024
dc.description.abstractTriple junctions involving convergent plate boundaries extend beyond local implications, which is crucial for studying the geology of convergent plate boundary zones. However, kinematic models overlook Cyprus-Anatolia motion due to limited geodetic constraints. Our study area comprises Cyprus, southern Turkey, and the Levant coast, focusing on the Kahramanmaraş triple junction, where a destructive earthquake sequence occurred on February 6, 2023. We present precise positioning data merged with published velocities, constructing an up-to-date velocity field for the interseismic period. Employing two kinematic approaches, we analyze its tectonic implications. In Cyprus, we find the relative motion of Africa (Sinai Plate) and Anatolia is partitioned between convergence in the Cyprus subduction, with a rate of 3.5– 6.2 mm/yr, progressively decreasing from west to east and left-lateral transpressive Kyrenia fault, situated along the northern coast of Cyprus, with rate 3.3–4.2 mm/yr. The relative strike-slip motion between Arabia and Anatolia is partitioned between the East Anatolian Fault (slip rates 5.2–6.2 mm/yr) and some secondary faults such as Çardak and Malatya faults (slip rates 2.0–1.7 mm/yr respectively) and causes distributed deformation for a 50–60 km wide region. The largest second invariant strain rate tensors from the continuum kinematic model also coincide with the same region, the East Anatolian shear zone. A shear partitioning system exists around the Kahramanmaraş triple junction, from Cyprus to southeast Turkey. The Levant Fault has a 3.5–4.7 mm/yr left-lateral slip rate, decreasing northward as part of it is transferred to offshore faults. Strain rates appear relatively small in the Taurus range and Adana/Cilicia basin, transitioning from extensional/transtensional to compressional from east to west.eng
dc.description.sponsorshipMGA-2020-42584; 1059B142000638
dc.identifier.doi10.1051/bsgf/2024012
dc.identifier.issn1777-5817
dc.identifier.urihttp://hdl.handle.net/10400.1/26226
dc.language.isoeng
dc.peerreviewedyes
dc.publisherEDP Open
dc.relation.ispartofBSGF - Earth Sciences Bulletin
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectKahramanmara & scedil
dc.subjectTriple junction
dc.subjectKinematic modelling
dc.subjectShear partitioning
dc.subjectCyprus Subduction zone
dc.subjectEast Anatolian shear zone
dc.subjectKahramamara & scedil
dc.subjectEarthquake doublet
dc.subjectJonction triple de Kahramanmara & scedil
dc.subjectMod & eacute
dc.subjectlisation cin & eacute
dc.subjectMatique
dc.subjectCisaillement
dc.subjectZone de subduction chypriote
dc.subjectFaille est-anatolienne
dc.subjectDoublet sismique de Kahramanmaras
dc.titleKinematics of the kahramanmaraş triple junction and of Cyprus: evidence of shear partitioningeng
dc.typejournal article
dspace.entity.typePublication
oaire.citation.startPage15
oaire.citation.titleBSGF - Earth Sciences Bulletin
oaire.citation.volume195
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameOgretmen
person.givenNameNazik
person.identifier.orcid0000-0003-0117-1058
relation.isAuthorOfPublication76d17482-d7fe-4c63-900c-d33befacf45d
relation.isAuthorOfPublication.latestForDiscovery76d17482-d7fe-4c63-900c-d33befacf45d

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