Akademik Veri Yönetim Sistemi
JOURNAL OF ASIAN EARTH SCIENCES, cilt.251, 2023 (SCI-Expanded, Scopus)
The present tectonic framework of NW Turkey has been dominated by two major deformational settings. The first of these is the West Anatolian Extension, which is associated with the collision along the Aegean-Cyprian sub-duction system between the Eurasian and African plates since the Oligocene. Second is the transcurrent tectonic setting, which developed with the westward movement of the Anatolian Block and compensates the displacement differencial motion the Anatolian Block and the Eurasian Plate. This led to the formation of one of the most well-known transform faults, the North Anatolian Fault Zone, which produced many devastating earthquakes. Bursa Basin has a unique position for understanding the stress partitioning that developed in the interaction area between these two extensional and transcurrent tectonic systems.In this study, the fault architecture throughout the basin has been identified and mapped in detail. Paleostress analysis based on 834 kinematic data from 20 sites indicates that the region has experienced two different deformation phases since the Miocene. The first phase is characterized by pre-Quaternary strike-slip deformation that formed under the NW-SE directed extension and NE-SW trending contraction. The second, ongoing deformation phase is characterized by NE-SW trending extension highlighting the stress conditions of the Bursa Basin. This phase marks the domination of NAFZ over the West Anatolian Extensional Province and the formation of the transtensionally rotated pull-apart basins between the branches of the North Anatolian Fault Zone, such as Bursa Basin.