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U-Pb zircon ages, field geology and geochemistry of the Kermanshah ophiolite (Iran): From continental rifting at 79 Ma to oceanic core complex at ca. 36 Ma in the southern Neo-Tethys

文献类型：期刊论文

作者Ao, Songjian1; Xiao, Wenjiao1,2; Jafari, Morteza Khalatbari3; Talebian, Morteza3; Chen, Ling1; Wan, Bo1,2; Ji, Weiqiang1; Zhang, Zhiyong1
刊名GONDWANA RESEARCH
出版日期2016-03-01
卷号31页码:305-318
关键词Oceanic core complex Kermanshah ophiolite Neo-Tethys U-Pb age Iran
DOI10.1016/j.gr.2015.01.014
文献子类Article
英文摘要The geodynamic evolution of the Zagros Mountains of Iran remains obscure. In particular, the time of formation of the Zagros ophiolites and the closure of the Neo-Tethys Ocean are highly controversial. Here we present new precise zircon U-Pb ages that show that the younger part (Sahneh-Kamyaran) of the Kermanshah ophiolite formed at 35.7 +/- 0.5 Ma and the older part (Harsin) at 793 +/- 0.9 Ma. Field relations and geochemical evidence show that the younger Sahneh-Kamyaran part is probably a fossil oceanic core complex, and the older Sahneh part is probably a continental-oceanic transition complex. Both the Sahneh-Kamyaran and Sahneh parts were later emplaced into an accretionary complex. We conclude and infer that the final closure time of the southern Neo-Tethys Ocean was after the Late Eocene. Our data and tectonic model have crucial implications for the geodynamic evolution of the Zagros region. (C) 2015 International Association for Gondwana Research. Published by Elsevier B.V. All rights reserved.
WOS关键词MID-ATLANTIC RIDGE ; OIB-TYPE COMPONENTS ; ZAGROS SUTURE ZONE ; TECTONIC EVOLUTION ; NEYRIZ OPHIOLITE ; KURDISTAN REGION ; OROGENIC BELT ; PETROLOGY ; ROCKS ; ARC
WOS研究方向Geology
语种英语
WOS记录号WOS:000371555100017
资助机构Chinese Academy of Sciences(XDB03010801) ; Chinese Academy of Sciences(XDB03010801) ; Chinese Academy of Sciences(XDB03010801) ; Chinese Academy of Sciences(XDB03010801) ; National Natural Science Foundation of China(41472192 ; National Natural Science Foundation of China(41472192 ; National Natural Science Foundation of China(41472192 ; National Natural Science Foundation of China(41472192 ; 41230207 ; 41230207 ; 41230207 ; 41230207 ; 41390441 ; 41390441 ; 41390441 ; 41390441 ; 41190075 ; 41190075 ; 41190075 ; 41190075 ; 41202150) ; 41202150) ; 41202150) ; 41202150) ; Chinese Academy of Sciences(XDB03010801) ; Chinese Academy of Sciences(XDB03010801) ; Chinese Academy of Sciences(XDB03010801) ; Chinese Academy of Sciences(XDB03010801) ; National Natural Science Foundation of China(41472192 ; National Natural Science Foundation of China(41472192 ; National Natural Science Foundation of China(41472192 ; National Natural Science Foundation of China(41472192 ; 41230207 ; 41230207 ; 41230207 ; 41230207 ; 41390441 ; 41390441 ; 41390441 ; 41390441 ; 41190075 ; 41190075 ; 41190075 ; 41190075 ; 41202150) ; 41202150) ; 41202150) ; 41202150)
源URL[http://ir.iggcas.ac.cn/handle/132A11/62019]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
2.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China
3.Geol Survey Iran, Res Inst Earth Sci, Tehran, Iran
推荐引用方式
GB/T 7714		 Ao, Songjian,Xiao, Wenjiao,Jafari, Morteza Khalatbari,et al. U-Pb zircon ages, field geology and geochemistry of the Kermanshah ophiolite (Iran): From continental rifting at 79 Ma to oceanic core complex at ca. 36 Ma in the southern Neo-Tethys[J]. GONDWANA RESEARCH,2016,31:305-318.
APA Ao, Songjian.,Xiao, Wenjiao.,Jafari, Morteza Khalatbari.,Talebian, Morteza.,Chen, Ling.,...&Zhang, Zhiyong.(2016).U-Pb zircon ages, field geology and geochemistry of the Kermanshah ophiolite (Iran): From continental rifting at 79 Ma to oceanic core complex at ca. 36 Ma in the southern Neo-Tethys.GONDWANA RESEARCH,31,305-318.
MLA Ao, Songjian,et al."U-Pb zircon ages, field geology and geochemistry of the Kermanshah ophiolite (Iran): From continental rifting at 79 Ma to oceanic core complex at ca. 36 Ma in the southern Neo-Tethys".GONDWANA RESEARCH 31(2016):305-318.

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来源：地质与地球物理研究所

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