DETERMINATION OF THE HOLOCENE SEDIMENTERY SUCCESSION OF THE EASTERN PART OF THE GULF OF SAROS BY HIGH RESOLUTION SEISMIC

Year 2018, Volume: 20 Issue: 58, 187 - 196, 01.01.2018

Denizhan Vardar

Abstract

This study was held on the Gulf of Saros, which located on the North Anatolian Fault Zone, is a tectonically active region. The aim of this study to present the character and distrubition of the sedimentary deposits at the eastern part of the Gulf of Saros by using seismic stratigraphical methods. Previous studies that characterize the interior of the gulf were not present sufficient data to determine the character of the sedimatery deposits of the inner part of the gulf. About 300 km seismic data were acquired by small boat at the inner side of the gulf during the 15- day. The data were interpreted in the sense of seismic stratigraphical properties of the gulf. 5 units were defined according to internal reflection differences and depositional conditions and named as U1a, U1b, U1c, U1d, U2. The main factor of the gulf, which controls depositional system, is North Anatolian Fault Zone. The northern shelf of the bay was affected by the rivers during the high-stand to low-stand period whereas the southern shelf was aerially exposed

Keywords

North Anatolian Fault Gulf of Saros, seismic stratigraphy, High resolution shallow seismic

SAROS KÖRFEZİ DOĞU KESİMİNİN YAKIN GEÇMİŞ DEPOLANMA ÖZELLİKLERİNİN YÜKSEK ÇÖZÜNÜRLÜKLÜ SIĞ SİSMİK VERİLER İLE BELİRLENMESİ

Abstract

Çalışma Kuzey Anadolu Fay Zonunun üzerinde bulunan ve tektonik olarak aktif bir bölge olan Saros Körfezinde yapılmıştır. Bu çalışmanın amacı körfezin doğu kısmındaki çökel birimlerinin karakterini ve dağılımını sismik stratigrafik prensiplerle belirlemektir. Daha önceki çalışmalarda körfezin iç kısmını karakterize eden yeterli derecede veri seti bulunmadığından çalışma alanının depolanma özellikleri ayrıntılı olarak belirlenememiştir. Bu amaçla körfezde 15 günlük deniz çalışması süresince yaklaşık 300 km sismik veri toplanmıştır. Toplanan bu veriler sismik stratigrafik yorumlanmıştır. Çalışma sahasında içsel yansıma farklılıkları ve depolanma unsurlarına göre 5 sismik yansıma birimi tanımlanmış ve U1a, U1b, U1c, U1d, U2 olarak isimlendirilmiştir. Körfezin çökel depolanmasını kontrol eden ana faktörün Kuzey Anadolu Fay Zonu olduğu ve çalışma sahasının kuzeyinin son düşük deniz seviyesi boyunca nehirsel etkilere maruz kaldığı buna karşın güneyin aşınım alanı olduğu belirlenmiştir

Keywords

Kuzey Anadolu Fayı Saros Körfezi, Sismik stratigrafi, Yüksek çözünürlüklü sığ sismik

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