Kinematics of the Havran-Balıkesir Fault Zone and its implication on geodynamic evolution of the Southern Marmara Region, NW Anatolia

Cenozoic convergence, collision and subsequent subduction between African and Eurasian plates are accommodating in overriding Eurasian plate both forming the Aegean extension and the North & East Anatolian fault zones. To understand the kinematic evolution of upper crust, here we provide new pal...

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Main Authors: Ökmen Sümer, Bora Uzel, Çağlar Özkaymak, Hasan Sözbilir
Format: Article
Language:English
Published: Taylor & Francis Group 2018-01-01
Series:Geodinamica Acta
Subjects:
Online Access:http://dx.doi.org/10.1080/09853111.2018.1540145
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author Ökmen Sümer
Bora Uzel
Çağlar Özkaymak
Hasan Sözbilir
author_facet Ökmen Sümer
Bora Uzel
Çağlar Özkaymak
Hasan Sözbilir
author_sort Ökmen Sümer
collection DOAJ
description Cenozoic convergence, collision and subsequent subduction between African and Eurasian plates are accommodating in overriding Eurasian plate both forming the Aegean extension and the North & East Anatolian fault zones. To understand the kinematic evolution of upper crust, here we provide new paleostress data from the Havran-Balıkesir Fault Zone located at the interaction area between the North Anatolian Fault Zone (NAFZ) and west Anatolian extensional structures. Paleostress reconstructions of fault-slip data reveal that three distinct deformation phases have been experienced in the region. Phase 1 is represented by left-lateral strike-slip faulting with reverse component in the pre-Pliocene period. The Phase 2 is characterized by approximately N–S trending contraction and associated E–W trending extension in Plio–Quaternary, which is spatiotemporally linked to the initiation of NAFZ through the area. The youngest deformation, Phase 3 is attributed to NE–SW trending extension and NW-SE-trending contraction commenced by the Quaternary transpressional tectonics in Southern Marmara Region. These results show that the main contraction axes have been experienced a spectacular anticlockwise rotation (from NW-SE to E-W), which is associated with; (i)the propagation geometry of the NAFZ into the region (ii)slab roll-back and retreat and tearing process on the Aegean subduction system, and (iii)the existence of inherited structures of the İzmir-Balıkesir Transfer Zone.
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spelling doaj.art-a8d1320365004c6689b4c4c3e86469de2022-12-22T03:42:40ZengTaylor & Francis GroupGeodinamica Acta0985-31111778-35932018-01-0130130632310.1080/09853111.2018.15401451540145Kinematics of the Havran-Balıkesir Fault Zone and its implication on geodynamic evolution of the Southern Marmara Region, NW AnatoliaÖkmen Sümer0Bora Uzel1Çağlar Özkaymak2Hasan Sözbilir3Dokuz Eylül UniversityDokuz Eylül UniversityAfyon Kocatepe UniversityDokuz Eylül UniversityCenozoic convergence, collision and subsequent subduction between African and Eurasian plates are accommodating in overriding Eurasian plate both forming the Aegean extension and the North & East Anatolian fault zones. To understand the kinematic evolution of upper crust, here we provide new paleostress data from the Havran-Balıkesir Fault Zone located at the interaction area between the North Anatolian Fault Zone (NAFZ) and west Anatolian extensional structures. Paleostress reconstructions of fault-slip data reveal that three distinct deformation phases have been experienced in the region. Phase 1 is represented by left-lateral strike-slip faulting with reverse component in the pre-Pliocene period. The Phase 2 is characterized by approximately N–S trending contraction and associated E–W trending extension in Plio–Quaternary, which is spatiotemporally linked to the initiation of NAFZ through the area. The youngest deformation, Phase 3 is attributed to NE–SW trending extension and NW-SE-trending contraction commenced by the Quaternary transpressional tectonics in Southern Marmara Region. These results show that the main contraction axes have been experienced a spectacular anticlockwise rotation (from NW-SE to E-W), which is associated with; (i)the propagation geometry of the NAFZ into the region (ii)slab roll-back and retreat and tearing process on the Aegean subduction system, and (iii)the existence of inherited structures of the İzmir-Balıkesir Transfer Zone.http://dx.doi.org/10.1080/09853111.2018.1540145Havran–Balıkesir Fault Zonekinematic analysispaleostress reconstructiondeformation phaseMarmara Region
spellingShingle Ökmen Sümer
Bora Uzel
Çağlar Özkaymak
Hasan Sözbilir
Kinematics of the Havran-Balıkesir Fault Zone and its implication on geodynamic evolution of the Southern Marmara Region, NW Anatolia
Geodinamica Acta
Havran–Balıkesir Fault Zone
kinematic analysis
paleostress reconstruction
deformation phase
Marmara Region
title Kinematics of the Havran-Balıkesir Fault Zone and its implication on geodynamic evolution of the Southern Marmara Region, NW Anatolia
title_full Kinematics of the Havran-Balıkesir Fault Zone and its implication on geodynamic evolution of the Southern Marmara Region, NW Anatolia
title_fullStr Kinematics of the Havran-Balıkesir Fault Zone and its implication on geodynamic evolution of the Southern Marmara Region, NW Anatolia
title_full_unstemmed Kinematics of the Havran-Balıkesir Fault Zone and its implication on geodynamic evolution of the Southern Marmara Region, NW Anatolia
title_short Kinematics of the Havran-Balıkesir Fault Zone and its implication on geodynamic evolution of the Southern Marmara Region, NW Anatolia
title_sort kinematics of the havran balikesir fault zone and its implication on geodynamic evolution of the southern marmara region nw anatolia
topic Havran–Balıkesir Fault Zone
kinematic analysis
paleostress reconstruction
deformation phase
Marmara Region
url http://dx.doi.org/10.1080/09853111.2018.1540145
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AT caglarozkaymak kinematicsofthehavranbalıkesirfaultzoneanditsimplicationongeodynamicevolutionofthesouthernmarmararegionnwanatolia
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