Akademik Veri Yönetim Sistemi
1st International conference on Mediterranean Geosciences Union, MedGU 2021, İstanbul, Türkiye, 25 - 28 Kasım 2021, ss.313-316, (Tam Metin Bildiri)
Interpreting multi-channel seismic reflection data requires several modifications for improvements and the association of data with geology. This editing and improvement process is called seismic data processing. Seismic migration, the basis of this study, is a seismic data processing step that moves the seismic reflections associated with strong dips and refraction scattering in the data to their accurate geological locations in the time and depth domains. This study aims to apply and compare the different seismic migration methods on two lines of 2D multi-channel marine seismic reflection data collected at Central Basin and Çınarcık Basin in the Sea of Marmara in 1997 by R/V MTA Sismik 1. Following the application of migration methods on both pre- and post-stack sections and comparing the results, 2D Kirchhoff pre-stack depth migration (PSDM) sections are interpreted in terms of active tectonics. In the Central Basin, it has been found that the basin structure is formed by N-W striking left lateral to oblique-extensional faults, which are terminated in the N and S by en échelon segments of oblique-extensional faults. In the Çınarcık Basin, “V” shaped sagging sedimentary layers consisting of turbidites, the main Marmara fault, and its related faults are observed. Concluding the investigations, new faults were observed in addition to those observed in previous studies both in the Central Basin and the Çınarcık Basin. These new faults are compatible with the tectonic features of the region.