Akademik Veri Yönetim Sistemi
74th Geological Congress Of Turkey, Ankara, Türkiye, 11 - 15 Nisan 2022, sa.21, ss.1, (Özet Bildiri)
The high-resolution seismic reflection and magnetic data collected offshore of the Ganos Fault (NW Turkey) in the western Sea of Marmara in 2019, help to image the tectonic structures of the continental shelf between Tekirdağ and Şarköy . Based on these data a tectonic model, presents the connection of the onshore fault pattern to the transtensional basins of the deepest Sea of Marmara, was obtained. According to the model, three main faults control the deformation pattern of this region. Fault SF1, a tectonic element that shapes the Tekirdağ Basin; fault SF2, which although not affecting the sea floor, is structurally related to SF1 and fault SF3, connects the offshore to the onshore main fault, caused a transtensional pattern nearby the shelf. All such kinematic indicators witness an incipient activity, and a seismogenic potential that should be determined by a detailed mapping of both the surficial expression of fault at the seafloor, and the deformation pattern observed in the post-glacial sedimentary sequence. The active fault pattern detected nearby the coastal areas and their structural relationships with the Tekirdağ basin show that it could be interpreted as a negative flower structure, which accommodate strain partitioning. This observation is crucial to seismic hazard assessments in this region that has been site of destructive earthquakes in the recent and remote past. This study were financially supported bythe Scientific and Technological Research Council of Turkey-TUBITAK (Project 118Y079)