Basin progress: active deformation analysis by tectonostratigraphic elements and geophysical methods on North Anatolian Fault System (Eastern Marmara Region, Turkey)

نویسندگان

چکیده

The Northern Branch of the North Anatolian Fault System controls and deforms Izmit Basin Sapanca Lake in study area. Unlike Basin, oblique normal faults with WNW–ESE trending maximum length 5 km south basin have contributed to deformation process formation Basin. fault sets mainly incline north. N-S width dextral strike-slip active was determined as 9 at 3.8 basin. Further, minimum principal stress axes (σ3) vary ranges N11°–74°E, which are caused by transtensional stresses associated faulting a different tectonic source than Besides, crust depth main strand NAFS-NB up 1112 m magnetic method. secondary were both resistivity methods 110 m. depression area between bay on northern is an integrated two origins. Thus, along faulting, has been developed asymmetric negative flower structure, where only southern boundary become fault. lazy-Z-shaped pull-apart system formed E–W releasing bend. A simple shear ellipsoid long axis approximately 35 defined for Izmit–Sapanca Therefore, intra-basin deposits depths estimated from gravity data basin, sediment thickness 2200 middle

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ژورنال

عنوان ژورنال: Natural Hazards

سال: 2021

ISSN: ['1573-0840', '0921-030X']

DOI: https://doi.org/10.1007/s11069-021-04894-4