caa a22 4500 463216180 CHVBK 20180405153157.0 cr unu---uuuuu 170326e20071201xx s 000 0 eng 10.1007/s00367-007-0057-3 doi (NATIONALLICENCE)springer-10.1007/s00367-007-0057-3 Quaternary evolution of the Gulf of İzmit (NW Turkey): a sedimentary basin under control of the North Anatolian Fault Zone [Elektronische Daten] [Erdal Dolu, Erkan Gökaşan, Engin Meriç, Mustafa Ergin, Tolga Görüm, Hüseyin Tur, Berkan Ecevitoğlu, Niyazi Avşar, Muhittin Görmüş, Fatmagül Batuk, Buğser Tok, Oktay Çetin] The Quaternary evolution of the Gulf of İzmit, situated on the tectonically active North Anatolian Fault Zone (NAFZ), was investigated using seismic reflection, paleontologic, and sediment textural data. On the basis of seismic stratigraphic and sedimentologic-paleontologic interpretations, four depositional units were distinguished within the Plio-Quaternary sequence of the Gulf of İzmit. According to these data, Plio-Quaternary deposits supplied from the northern terrestrial area started to accumulate during a progradational phase, in a south-facing half-graben. A coarse-grained sedimentary unit prograding into the gulf from the south since 200ka b.p. indicates a dramatic variation in the evolution of the gulf, with the initiation of a new strike-slip fault of the NAFZ and a corresponding uplift of the Armutlu Peninsula in the south of the gulf. During the evolution of this fault from a wide shear zone consisting of right-stepped strike-slip faults and pull-apart basins to a localized principal fault zone, sediments were deposited under the influence of northerly prograding terrestrial and shallow-marine conditions due to relative sea-level fluctuations in the Marmara Sea. During this period, the Gulf of İzmit was invaded mainly by Mediterranean and partly by Black Sea waters. In the latest glacial period, shallow areas in the gulf became subaerially exposed, whereas the central and western sub-basins of the gulf turned into lakes. The present evolution of the Gulf of İzmit is controlled by the after effects of the new rupture of the NAFZ and the estuarine nature of the gulf environment. Springer-Verlag, 2007 Dolu Erdal Institute of Marine Science and Management, Istanbul University, Vefa, 34470, Istanbul, Turkey aut Gökaşan Erkan Natural Science Research Center, Yıldız Technical University, Beşiktaş, 34349, Istanbul, Turkey aut Meriç Engin Moda, Hüseyin Bey Sok. 15/4, Kadıköy, 34710, Istanbul, Turkey aut Ergin Mustafa Faculty of Engineering, Department of Geological Engineering/Geological Research Center for Fluvial, Lacustrine, and Marine Environments (AGDEJAM), Ankara University, Tandogan, 06100, Ankara, Turkey aut Görüm Tolga Natural Science Research Center, Yıldız Technical University, Beşiktaş, 34349, Istanbul, Turkey aut Tur Hüseyin Faculty of Engineering, Department of Geophysical Engineering, Istanbul University, Avcılar, 34850, Istanbul, Turkey aut Ecevitoğlu Berkan Department of Geophysics Engineering, Ankara University, Tandoğan, 06100, Ankara, Turkey aut Avşar Niyazi Engineering-Architecture Faculty, Geology Department, Çukurova University, Balcalı, 01330, Adana, Turkey aut Görmüş Muhittin Engineering-Architecture Faculty, Department of Geology, Süleyman Demirel University, Çünür, 32100, Isparta, Turkey aut Batuk Fatmagül Faculty of Civil Engineering, Department of Geodesy and Fotogrametric Engineering, Yıldız Technical University, Beşiktaş, 34349, Istanbul, Turkey aut Tok Buğser Department of the Navigation, Hydrography and Oceanography, Turkish Navy, Çubuklu, 81647, Istanbul, Turkey aut Çetin Oktay Science-Lettres Faculty, Department of Physics, Abant İzzet Baysal University, Gölköy, 14280, Bolu, Turkey aut Geo-Marine Letters Springer-Verlag 27/6(2007-12-01), 355-381 0276-0460 27:6<355 2007 27 367 https://doi.org/10.1007/s00367-007-0057-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00367-007-0057-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Dolu Erdal Institute of Marine Science and Management, Istanbul University, Vefa, 34470, Istanbul, Turkey aut NATIONALLICENCE 700 1- Gökaşan Erkan Natural Science Research Center, Yıldız Technical University, Beşiktaş, 34349, Istanbul, Turkey aut NATIONALLICENCE 700 1- Meriç Engin Moda, Hüseyin Bey Sok. 15/4, Kadıköy, 34710, Istanbul, Turkey aut NATIONALLICENCE 700 1- Ergin Mustafa Faculty of Engineering, Department of Geological Engineering/Geological Research Center for Fluvial, Lacustrine, and Marine Environments (AGDEJAM), Ankara University, Tandogan, 06100, Ankara, Turkey aut NATIONALLICENCE 700 1- Görüm Tolga Natural Science Research Center, Yıldız Technical University, Beşiktaş, 34349, Istanbul, Turkey aut NATIONALLICENCE 700 1- Tur Hüseyin Faculty of Engineering, Department of Geophysical Engineering, Istanbul University, Avcılar, 34850, Istanbul, Turkey aut NATIONALLICENCE 700 1- Ecevitoğlu Berkan Department of Geophysics Engineering, Ankara University, Tandoğan, 06100, Ankara, Turkey aut NATIONALLICENCE 700 1- Avşar Niyazi Engineering-Architecture Faculty, Geology Department, Çukurova University, Balcalı, 01330, Adana, Turkey aut NATIONALLICENCE 700 1- Görmüş Muhittin Engineering-Architecture Faculty, Department of Geology, Süleyman Demirel University, Çünür, 32100, Isparta, Turkey aut NATIONALLICENCE 700 1- Batuk Fatmagül Faculty of Civil Engineering, Department of Geodesy and Fotogrametric Engineering, Yıldız Technical University, Beşiktaş, 34349, Istanbul, Turkey aut NATIONALLICENCE 700 1- Tok Buğser Department of the Navigation, Hydrography and Oceanography, Turkish Navy, Çubuklu, 81647, Istanbul, Turkey aut NATIONALLICENCE 700 1- Çetin Oktay Science-Lettres Faculty, Department of Physics, Abant İzzet Baysal University, Gölköy, 14280, Bolu, Turkey aut NATIONALLICENCE 773 0- Geo-Marine Letters Springer-Verlag 27/6(2007-12-01), 355-381 0276-0460 27:6<355 2007 27 367 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer