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Detrital Zircon Age Constraints on the Evolution of Paleo-Tethys in NE Iran: Implications for Subduction and Collision Tectonics

文献类型：期刊论文

作者Chu, Yang1,2; Wan, Bo1,2; Allen, Mark B.3; Chen, Ling1,4; Lin, Wei1,2,4; Talebian, Morteza5; Xin, Guangyao1,4
刊名TECTONICS
出版日期2021-08-01
卷号40期号:8页码:25
关键词Binalud NE Iran detrital zircons latest ordovician-early triassic subduction initial Central Iran-Eurasia collision Paleo-Tethys evolution
ISSN号0278-7407
DOI10.1029/2020TC006680
英文摘要The timings of the onset of oceanic spreading, subduction and collision are crucial in plate reconstructions, but not always straightforward to resolve. The Paleo-Tethys evolution dominated the Paleozoic-Early Mesozoic tectonics of West Asia, but the timeline of events is still poorly constrained. We present new detrital zircon ages from the Binalud Mountains of NE Iran, in order to determine the timing of tectonic events in the region, and the wider implications for regional tectonics, paleogeography and climate change. Consistent age patterns in Paleozoic clastic rocks show a dominant provenance from the Neoproterozoic basement of northern Gondwana. We interpret this as deposition on a long-lasting passive continental margin after the initial spreading of the Paleo-Tethys Ocean. Central Iran-Eurasia collision caused coarse clastic deposition of the Mashhad Phyllite in a peripheral foreland basin on the Paleozoic sequence of the northern Central Iran Block. The Mashhad Phyllite yields age clusters at 450-250 Ma and 1,900-1,800 Ma, with a clear provenance from a long-lived continental arc at the active Eurasian margin since the latest Ordovician. Analysis of the age spectra allows us to constrain the maximum depositional age of the Mashhad Phyllite as no later than 228 Ma. This age provides a tight constraint on the timing of initial collision between Central Iran and Eurasia, which also coincides with the Carnian Pluvial Event (CPE). Our new timing evidence of collision reinforces the previous speculation on the Paleo-Tethys closure as a causal mechanism for the CPE.
WOS关键词EASTERN BINALUD MOUNTAINS ; U-PB ; DEPOSITIONAL-ENVIRONMENTS ; CONTINENTAL COLLISION ; CONVERGENCE HISTORY ; SHEMSHAK GROUP ; CENTRAL ALBORZ ; NORTHERN IRAN ; STRIKE-SLIP ; MAGMATISM
资助项目National Natural Science Foundation of China[91855103] ; National Natural Science Foundation of China[91855207] ; National Natural Science Foundation of China[91855212] ; National Natural Science Foundation of China[41872208] ; State Key Laboratory of Lithospheric Evolution[SKL-Q201801] ; China Scholarship Council[201804910283] ; Youth Innovation Promotion Association
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000691011200004
出版者AMER GEOPHYSICAL UNION
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; China Scholarship Council ; China Scholarship Council ; Youth Innovation Promotion Association ; Youth Innovation Promotion Association ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; China Scholarship Council ; China Scholarship Council ; Youth Innovation Promotion Association ; Youth Innovation Promotion Association ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; China Scholarship Council ; China Scholarship Council ; Youth Innovation Promotion Association ; Youth Innovation Promotion Association ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; China Scholarship Council ; China Scholarship Council ; Youth Innovation Promotion Association ; Youth Innovation Promotion Association
源URL[http://ir.iggcas.ac.cn/handle/132A11/102605]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Chu, Yang
作者单位1.Chinese Acad Sci, State Key Lab Lithospher Evolut, Inst Geol & Geophys, Beijing, Peoples R China
2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing, Peoples R China
3.Univ Durham, Dept Earth Sci, Durham, England
4.Univ Chinese Acad Sci, Beijing, Peoples R China
5.Geol Survey Iran, Inst Earth Sci, Tehran, Iran
推荐引用方式
GB/T 7714		 Chu, Yang,Wan, Bo,Allen, Mark B.,et al. Detrital Zircon Age Constraints on the Evolution of Paleo-Tethys in NE Iran: Implications for Subduction and Collision Tectonics[J]. TECTONICS,2021,40(8):25.
APA Chu, Yang.,Wan, Bo.,Allen, Mark B..,Chen, Ling.,Lin, Wei.,...&Xin, Guangyao.(2021).Detrital Zircon Age Constraints on the Evolution of Paleo-Tethys in NE Iran: Implications for Subduction and Collision Tectonics.TECTONICS,40(8),25.
MLA Chu, Yang,et al."Detrital Zircon Age Constraints on the Evolution of Paleo-Tethys in NE Iran: Implications for Subduction and Collision Tectonics".TECTONICS 40.8(2021):25.

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来源：地质与地球物理研究所

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