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DOI	10.1016/j.tecto.2020.228459
	Post-Eocene coupled oroclines in the Talesh (NW Iran): Paleomagnetic constraints
	Rezaeian M.; Kuijper C.B.; van der Boon A.; Pastor-Galán D.; Cotton L.J.; Langereis C.G.; Krijgsman W.
发表日期	2020
ISSN	00401951
卷号	786
英文摘要	The Talesh Mountains (NW Iran) witnessed a long deformation history from the Triassic Cimmerian orogeny to the ongoing Arabia-Eurasia collision. This protracted multi-stage deformation has generated a remarkably curved orogen with a puzzling kinematic and deformational history. In this study, we investigate the origin of the Talesh curvature through paleomagnetic analyses on rocks of Paleozoic, Mesozoic and Cenozoic age. Our results indicate that at least two major, large-scale, vertical-axis-rotations took place since the Late Cretaceous: 1) a pre-Eocene 73° ± 17° clockwise rotation and 2) post-Eocene differential rotations that formed the Z-shaped mountain belt within a crustal-scale shear zone. The latter involved an increasing amount of clockwise (CW) rotation from south (16°) to north (48°). The orocline formation likely started during the Oligocene where an approximately east-west oriented mountain belt was buckled by the Arabia-Eurasia collision, with Arabia acting as a rigid indenter and the South Caspian basin as a rigid backstop. We hypothesise that the NE-SW oriented Aras and Lahijan fault zones, inherited from transform faults related to the Mesozoic opening of the Caspian-Black Sea back-arc, accommodated the coupled orocline formation. © 2020 Elsevier B.V.
关键词	Arabia-Eurasia collision Aras - Lahijan faults Orocline Paleomagnetism Talesh Tethys
英文关键词	Clocks; Deformation; Landforms; Transform faults; Clockwise rotation; Crustal-scale shear zones; Deformation history; Differential rotation; Late cretaceous; Mountain belts; Paleomagnetic analysis; Vertical-axis rotation; Rotation; continental collision; deformation; Eocene; fault zone; orogeny; paleomagnetism; shear zone; transform fault; Black Sea; Caspian Sea; Gilan; Iran; Talesh
语种	英语
来源期刊	Tectonophysics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/207861
作者单位	Department of Earth Sciences, Institute for Advanced Studies in the Basic Sciences, Zanjan, Iran; Paleomagnetic Laboratory Fort Hoofddijk, Utrecht University, Utrecht, Netherlands; Geomagnetic Laboratory, University of Liverpool, Liverpool, United Kingdom; Center for Northeast Asian Studies, Tohoku University, Sendai, Japan; Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, Sendai, Japan; School of Environment, Geography and Geosciences, University of Portsmouth, United Kingdom
推荐引用方式 GB/T 7714	Rezaeian M.,Kuijper C.B.,van der Boon A.,et al. Post-Eocene coupled oroclines in the Talesh (NW Iran): Paleomagnetic constraints[J],2020,786.
APA	Rezaeian M..,Kuijper C.B..,van der Boon A..,Pastor-Galán D..,Cotton L.J..,...&Krijgsman W..(2020).Post-Eocene coupled oroclines in the Talesh (NW Iran): Paleomagnetic constraints.Tectonophysics,786.
MLA	Rezaeian M.,et al."Post-Eocene coupled oroclines in the Talesh (NW Iran): Paleomagnetic constraints".Tectonophysics 786(2020).