Morpho-tectonic evolution of the Çanakkale Basin (NW Anatolia): Evidence for a recent tectonic inversion from transpression to transtension

Erkan Gökaşan, Tolga Görüm*, Hüseyin Tur, Fatmagül Batuk

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Araştırma sonucu: ???type-name???Makalebilirkişi

8 Atıf (Scopus)

Özet

Onshore and offshore seismic and geologic-morphologic evidence from the wider region of the Çanakkale Basin indicates that this area has been widely exposed to transpressional tectonism, which already commenced in the Pliocene. During this transpressional tectonism, the Gelibolu Fault and the Anafartalar Shear Zone on the Gelibolu Peninsula, as well as the Bozcaada-Biga Shear Zone on the Biga Peninsula were activated. As a consequence, the northern part of the Gelibolu Peninsula, and a broad zone between Bozcaada Island and the Karaburun Peninsula were uplifted to form the northern and southern boundaries of the Çanakkale Basin, respectively. This remained a low-elevation intermontane basin between these two highlands. The original morphology of the Çanakkale Basin may have developed as a coastal and shelf section of the large extensional Marmara Sea Basin at the end of the Late Miocene. This tectonic phase was followed in the Pliocene by the transpressional tectonism of the North Anatolian Fault Zone, which destroyed the initial morphology and formed the present V-shaped basin. The activity of the Gelibolu Fault and the Anafartalar Shear Zone along the northern boundary of the Çanakkale Basin ended in the late Pleistocene with the initiation of the northern segment of the North Anatolian Fault Zone. The tectonism along the northern boundary of the Çanakkale Basin thus shifted from a transpressional to a transtensional regime. Seismic data indicate that the Bozcaada-Biga Shear Zone continues to be active to the present day.

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)227-239
Sayfa sayısı13
DergiGeo-Marine Letters
Hacim32
Basın numarası3
DOI'lar
Yayın durumuYayınlandı - Haz 2012
Harici olarak yayınlandıEvet

Finansman

Acknowledgements This study was supported by the Scientific and Technological Research Council of Turkey, project no. TUBİTAK-ÇAYDAG-104Y024. We thank the Turkish Navy, Department of Navigation, Hydrography, and Oceanography, and the General Directorate of Mineral Research and Exploration for providing the seismic and bathymetric data. Timur Ustaömer provided valuable and constructive criticism on an earlier manuscript. We appreciate the helpful reviews of three anonymous referees and the Editor-in-Chief, Burg W. Flemming.

FinansörlerFinansör numarası
Türkiye Bilimsel ve Teknolojik Araştirma KurumuTUBİTAK-ÇAYDAG-104Y024

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