气候变化领域集成服务门户(CCPortal): Offshore/onshore correlation of the North-Anatolian fault deformations in the Western Sea of Marmara

CCPortal

DOI	10.1007/s11069-021-04664-2
	Offshore/onshore correlation of the North-Anatolian fault deformations in the Western Sea of Marmara
	Vardar D.; Alp H.; Demirel S.; Aykurt Vardar H.; Alpar B.
发表日期	2021
ISSN	0921030X
起始页码	1905
结束页码	1923
卷号	107 期号:2
英文摘要	Newly collected high-resolution seismic reflection and magnetic data collected offshore of the Ganos Fault (NW Turkey) in the western Sea of Marmara, along the submerged portion of the North-Anatolian Fault, highlight the presence of a complex fault pattern. Based on these data, we propose a new tectonic model for this key region, connecting the onshore fault pattern to the transtensional basins of the deepest Sea of Marmara. According to this new model, three main faults control the deformation pattern of this region, fault SF1, a tectonic element that shapes the Tekirdağ Basin, and fault SF2, which although not affecting the sea floor, is structurally related to SF1. Another fault we called SF3, connects the offshore to the Ganos fault onshore creating 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 accommodates strain partitioning. This observation is crucial to seismic hazard assessments in this region that has been the site of destructive earthquakes in the recent and remote past. © 2021, The Author(s), under exclusive licence to Springer Nature B.V.
关键词	Ganos fault High-resolution marine seismic reflection data Marine magnetic North-Anatolian fault Sea of Marmara Tectonic
英文关键词	correlation; deformation; fault; hazard assessment; magnetic field; seafloor mapping; seismic hazard; seismic reflection; tectonics; Anatolia; Sea of Marmara; Tekirdag; Turkey; Marmara; Meleagris gallopavo
语种	英语
来源期刊	Natural Hazards
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/206622
作者单位	Institute of Marine Sciences and Management, İstanbul University, İstanbul, Turkey; Engineering Faculty, Geophysical Engineering Department, İstanbul University-Cerrahpaşa, İstanbul, Turkey
推荐引用方式 GB/T 7714	Vardar D.,Alp H.,Demirel S.,et al. Offshore/onshore correlation of the North-Anatolian fault deformations in the Western Sea of Marmara[J],2021,107(2).
APA	Vardar D.,Alp H.,Demirel S.,Aykurt Vardar H.,&Alpar B..(2021).Offshore/onshore correlation of the North-Anatolian fault deformations in the Western Sea of Marmara.Natural Hazards,107(2).
MLA	Vardar D.,et al."Offshore/onshore correlation of the North-Anatolian fault deformations in the Western Sea of Marmara".Natural Hazards 107.2(2021).