气候变化领域集成服务门户(CCPortal): Geodynamics, seismicity, and seismic hazards of the Caucasus

CCPortal

DOI	10.1016/j.earscirev.2020.103222
	Geodynamics, seismicity, and seismic hazards of the Caucasus
	Ismail-Zadeh A.; Adamia S.; Chabukiani A.; Chelidze T.; Cloetingh S.; Floyd M.; Gorshkov A.; Gvishiani A.; Ismail-Zadeh T.; Kaban M.K.; Kadirov F.; Karapetyan J.; Kangarli T.; Kiria J.; Koulakov I.; Mosar J.; Mumladze T.; Müller B.; Sadradze N.; Safarov R.; Schilling F.; Soloviev A.
发表日期	2020
ISSN	0012-8673
卷号	207
英文摘要	Being a part of ongoing continental collision between the Arabian and Eurasian plates, the Caucasus region is a remarkable site of moderate to strong seismicity, where devastating earthquakes caused significant losses of lives and livelihood. In this article, we survey geology and geodynamics of the Caucasus and its surroundings; magmatism and heat flow; active tectonics and tectonic stresses caused by the collision and shortening; gravity and density models; and overview recent geodetic studies related to regional movements. The tectonic development of the Caucasus region in the Mesozoic-Cenozoic times as well as the underlying dynamics controlling its development are complicated processes. It is clear that the collision is responsible for a topographic uplift / inversion and for the formation of the fold-and-thrust belts of the Greater and Lesser Caucasus. Tectonic deformations in the region is influenced by the wedge-shaped rigid Arabian block indenting into the relatively mobile region and producing near N-S compressional stress and seismicity in the Caucasus. Regional seismicity is analysed with an attention to sub-crustal seismicity under the northern foothills of the Greater Caucasus, which origin is unclear – whether the seismicity associated with a descending oceanic crust or thinned continental crust. Recent seismic tomography studies are in favour of the detachment of a lithospheric root beneath the Lesser and Greater Caucasus. The knowledge of geodynamics, seismicity, and stress regime in the Caucasus region assists in an assessment of seismic hazard and risk. We look finally at existing gaps in the current knowledge and identify the problems, which may improve our understanding of the regional evolution, active tectonics, geodynamics, shallow and deeper seismicity, and surface manifestations of the lithosphere dynamics. Among the gaps are those related to uncertainties in regional geodynamic and tectonic evolution (e.g., continental collision and associated shortening and exhumation, lithosphere structure, deformation and strain-stress partitioning) and to the lack of comprehensive datasets (e.g., regional seismic catalogues, seismic, gravity and geodetic surveys). © 2020 Elsevier B.V.
英文关键词	Deformation; Density; Geodesy; Geological evolution; Gravity; Greater and Lesser Caucasus; Seismic tomography; Tectonic stresses
语种	英语
scopus关键词	continental collision; geodesy; geodynamics; heat flow; magmatism; seismic hazard; seismicity; tectonics; Caucasus; Calluna vulgaris
来源期刊	EARTH-SCIENCE REVIEWS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/209602
作者单位	Karlsruhe Institute of Technology, Institute of Applied Geosciences, Karlsruhe, Germany; Institute of Earthquake Prediction Theory and Mathematical Geophysics, Russian Academy of Sciences, Moscow, Russian Federation; Javakhishvili Tbilisi State University, Nodia Institute of Geophysics, Tbilisi, Georgia; Utrecht University, Department of Earth Sciences, Utrecht, Netherlands; Massachusetts Institute of Technology, Department of Earth, Atmospheric and Planetary Sciences, Cambridge, MA, United States; Geophysical Center, Russian Academy of Sciences, Moscow, Russian Federation; Azerbaijan National Academy of Sciences, Institute of Geology and Geophysics, Baku, Azerbaijan; Helmholtz-Centre Potsdam, GFZ German Research Centre for Geosciences, Telegrafenberg, Potsdam, Germany; Schmidt Institute of Physics of the Earth, Russian Academy of Sciences, Moscow, Russian Federation; National Academy of Sciences of the Republic of Armenia, Nazarov Institute of Geophysics and Engineering Seismology, Gyumri, Armenia; Trofi...
推荐引用方式 GB/T 7714	Ismail-Zadeh A.,Adamia S.,Chabukiani A.,et al. Geodynamics, seismicity, and seismic hazards of the Caucasus[J],2020,207.
APA	Ismail-Zadeh A..,Adamia S..,Chabukiani A..,Chelidze T..,Cloetingh S..,...&Soloviev A..(2020).Geodynamics, seismicity, and seismic hazards of the Caucasus.EARTH-SCIENCE REVIEWS,207.
MLA	Ismail-Zadeh A.,et al."Geodynamics, seismicity, and seismic hazards of the Caucasus".EARTH-SCIENCE REVIEWS 207(2020).