DOI: 10.1007/s11069-021-04664-2
论文题名: Offshore/onshore correlation of the North-Anatolian fault deformations in the Western Sea of Marmara
作者: Vardar D. ; Alp H. ; Demirel S. ; Aykurt Vardar H. ; Alpar B.
刊名: Natural Hazards
ISSN: 0921030X
出版年: 2021
卷: 107, 期: 2 起始页码: 1905
结束页码: 1923
语种: 英语
中文关键词: 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
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. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/169421
Appears in Collections: 气候变化与战略
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作者单位: Institute of Marine Sciences and Management, İstanbul University, İstanbul, Turkey; Engineering Faculty, Geophysical Engineering Department, İstanbul University-Cerrahpaşa, İstanbul, Turkey
Recommended Citation:
Vardar D.,Alp H.,Demirel S.,et al. Offshore/onshore correlation of the North-Anatolian fault deformations in the Western Sea of Marmara[J]. Natural Hazards,2021-01-01,107(2)