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Tectonic Boundary and Ceasing Time of Amalgamation between the North China Craton and the North Qinling Belt
Liu, Jingbo1,2; Chen, Neng-Song3; Su, Wen1
2018-10-01
发表期刊JOURNAL OF EARTH SCIENCE
ISSN1674-487X
卷号29期号:5页码:1074-1080
摘要The Qinling orogenic belt is a composite orogen, consisting of the north and south Qinling belts with different collision ages. The North Qinling belt is composed of several petro-tectonic units, including the Kuanping, Erlangping, Qinling and Danfeng groups with numerous granitoid plutons from Neoproterzoic to Middle Devonian. To the north of the Kuanping Group, a mylonitized granite body in the Luanchuan Group was determined to have the magmatic age of 850 Ma, which is the northernmost Neoprotozoic granite body. The volcanic rocks of the Dahongkou Formation from the Luanchuan Group had the eruptive age of 1 600 Ma, obtained from zircon U-Pb LA-ICP-MS analysis. The detrital zircons in meta-sandstones from the Taowan Group have three populations of 920-1 400, 1 600-2 100, and >2 200 Ma ages, whereas those from the Kuanping Group shows six populations with the peaks of 590, 767, 952, 1 590, 2 485, and 3 200 Ma. These data suggest that the boundary between the North China Craton and the North Qinling belt cannot simply be constrained by using the events determined from zircon U-Pb ages. The granitoid plutons with the magmatic age of 430 Ma were strongly deformed, while those with the magmatic age of 390 Ma show no or less deformation, indicating that the deformation of amalgamation between the North China Craton and the North Qinling belt ceased between 390 and 430 Ma.
关键词Qinling orogenic belt Taowan Group Kuanping Group granitoid zircon age
DOI10.1007/s12583-018-0847-8
资助者National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
关键词[WOS]U-PB ; OROGENIC BELT ; HF ISOTOPES ; EVOLUTION ; GEOCHRONOLOGY ; CONSTRAINTS ; ECLOGITE ; ZIRCON ; GEOCHEMISTRY ; AGE
语种英语
资助项目National Natural Science Foundation of China[41372080]
资助者National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS研究方向Geology
WOS类目Geosciences, Multidisciplinary
WOS记录号WOS:000449880700009
出版者CHINA UNIV GEOSCIENCES, WUHAN
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文献类型期刊论文
条目标识符http://ir.iggcas.ac.cn/handle/132A11/89443
专题岩石圈演化国家重点实验室
通讯作者Liu, Jingbo
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
3.China Univ Geosci, Sch Earth Sci, Ctr Global Tecton, Wuhan 430074, Peoples R China
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GB/T 7714
Liu, Jingbo,Chen, Neng-Song,Su, Wen. Tectonic Boundary and Ceasing Time of Amalgamation between the North China Craton and the North Qinling Belt[J]. JOURNAL OF EARTH SCIENCE,2018,29(5):1074-1080.
APA Liu, Jingbo,Chen, Neng-Song,&Su, Wen.(2018).Tectonic Boundary and Ceasing Time of Amalgamation between the North China Craton and the North Qinling Belt.JOURNAL OF EARTH SCIENCE,29(5),1074-1080.
MLA Liu, Jingbo,et al."Tectonic Boundary and Ceasing Time of Amalgamation between the North China Craton and the North Qinling Belt".JOURNAL OF EARTH SCIENCE 29.5(2018):1074-1080.
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