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The Late Jurassic extensional event in the Yanshan fold and thrust belt (North China): New insights from an integrated study of structural geology, geophysics, and geochemistry of the Siganding granitic pluton

文献类型：期刊论文

作者Zeng, Jipei1,2; Wei, Wei1,2; Lin, Wei1,2; Meng, Lingtong1,2; Qiu, Huabiao1,2; Chu, Yang1,2; Ren, Zhiheng1,2,3; Wang, Yin1,2; Feng, Zhentian1,2; Li, Qiuli1,2
刊名JOURNAL OF ASIAN EARTH SCIENCES
出版日期2021-05-15
卷号211页码:22
关键词North China Craton Yanshan fold and thrust belt Anisotropy of Magnetic Susceptibility Gravity modeling Emplacement process of the Siganding pluton Late Jurassic extension
ISSN号1367-9120
DOI10.1016/j.jseaes.2021.104708
英文摘要The Yanshan fold and thrust belt (YFTB) was built up by multiple contractional events, namely the ?Yanshan Movement?, which was traditionally subdivided into the ?Yanshan-A? and ?Yanshan-B?. In contrast with the better constraint on ?Yanshan-B? (ca.140 Ma), the timing of ?Yanshan-A? is still in dispute. The Middle Jurassic contraction (172?160 Ma) was widely accepted, however, whether this contraction can last into 150 Ma is still unclear. In this article, to clarify the Late Jurassic tectonic regime in the YFTB, a multidisciplinary study, including structural geology, Anisotropy of Magnetic Susceptibility (AMS), gravity modeling, geochronology, and geochemistry, has been carried out to investigate the emplacement mechanism of the Siganding pluton (ca. 161?157 Ma) in the northern Beijing area. The magma was predominantly derived from the Precambrian continental lower crust. The magnetic foliations are pluton margin-parallel and outward dipping, resembling the fabric pattern of magmatic dome. The NE-SW striking magnetic lineations and NW-SE linear feeder zones revealed by gravity modeling indicate that the emplacement of the Siganding pluton was controlled by a weak NE-SW crustal stretching interpreted as a regional tectonic extension. Considering that the Late Jurassic (164?153 Ma) NE-SW oriented extension structures are not only documented in the YFTB, but also the entire eastern NCC, hereby we propose that the ?Yanshan-A? is constrained at 172?164 Ma, instead of a wide range from the Middle Jurassic to Late Jurassic (172?150 Ma) as argued by previous workers. The extension could be ascribed to the oblique subduction of the Izanagi plate.
资助项目National Key R&D Program of China[2016YFC0600102] ; National Key R&D Program of China[2016YFC0600401] ; National Natural Science Foundation of China[91855212] ; National Natural Science Foundation of China[91755205] ; National Natural Science Foundation of China[41472193]
WOS研究方向Geology
语种英语
WOS记录号WOS:000636304000003
出版者PERGAMON-ELSEVIER SCIENCE LTD
资助机构National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/101079]  
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Lin, Wei
作者单位1.Chinese Acad Sci, Innovat Acad Earth Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Geol Sci, SinoProbe Ctr, Beijing 100037, Peoples R China
推荐引用方式
GB/T 7714		 Zeng, Jipei,Wei, Wei,Lin, Wei,et al. The Late Jurassic extensional event in the Yanshan fold and thrust belt (North China): New insights from an integrated study of structural geology, geophysics, and geochemistry of the Siganding granitic pluton[J]. JOURNAL OF ASIAN EARTH SCIENCES,2021,211:22.
APA Zeng, Jipei.,Wei, Wei.,Lin, Wei.,Meng, Lingtong.,Qiu, Huabiao.,...&Ling, Xiaoxiao.(2021).The Late Jurassic extensional event in the Yanshan fold and thrust belt (North China): New insights from an integrated study of structural geology, geophysics, and geochemistry of the Siganding granitic pluton.JOURNAL OF ASIAN EARTH SCIENCES,211,22.
MLA Zeng, Jipei,et al."The Late Jurassic extensional event in the Yanshan fold and thrust belt (North China): New insights from an integrated study of structural geology, geophysics, and geochemistry of the Siganding granitic pluton".JOURNAL OF ASIAN EARTH SCIENCES 211(2021):22.

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来源：地质与地球物理研究所

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