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New paleomagnetic data from the central Tethyan Himalaya refine the size of Greater India during the Campanian

文献类型：期刊论文

作者Yuan, Jie4; Deng, Chenglong3,4; Yang, Zhenyu2; Krijgsman, Wout6; Thubtantsering, Huafeng5; Qin, Huafeng3,4; Yi, Liang7; Zhao, Pan4; Wan, Bo3,4; Zhao, Liang3,4
刊名EARTH AND PLANETARY SCIENCE LETTERS
出版日期2023-11-15
卷号622页码:16
关键词Greater India Tethyan Himalaya Upper Cretaceous oceanic red beds High-resolution thermal demagnetization India-Asia collision system
ISSN号0012-821X
DOI10.1016/j.epsl.2023.118422
英文摘要Knowledge of the size of Greater India is critical to deciphering the geodynamic processes of the India-Asia collision, as the size of this landmass primarily determines the amount of continental subduction and crustal shortening. Recently, paleomagnetic data revealed the rapid drift of a Himalayan microcontinent (i.e., the Tibetan Himalaya) during ca. 75-61 Ma, which resulted in a triple-stage India-Asia collision scenario. This scenario implies a relatively small Greater India at 75 Ma (Late Cretaceous), but this hypothesis is only based on one high quality Campanian paleomagnetic pole from the eastern part of the Tethyan Himalaya. Here we report comprehensive petrographic, rock magnetic and paleomagnetic studies on Upper Cretaceous oceanic affinity red beds (CORBs) of the Chuangde Formation from the central part of the Tethyan Himalaya at 83.6 degrees E longitude. These CORBs are characterized by multi-component magnetizations carried dominantly by detrital hematite, which retains a primary remanent magnetization. Accordingly, the high temperature magnetization components (585 690 degrees C) were isolated by high-resolution thermal demagnetization. The new paleomagnetic data provide, after applying an inclination shallowing correction, a Campanian paleopole of 43.3 degrees N/258.3 degrees E, which places the central part of the Tethyan Himalaya at a paleolatitude of 16.7 degrees +/- 1.8 degrees S at ca. 75 Ma. Comparison of this paleolatitude with the expected paleolatitude of India, using its apparent polar wander path, shows that the N-S extent of central Greater India was similar to 910 km during the middle Campanian. Our paleomagnetic data are in agreement with balanced cross section reconstructions and seismologic interpretations of the India-Asia collision zone and provide additional support for the North India Sea hypothesis. The improved estimate of the size of Greater India has several implications for Indian continental crust behavior and results in an updated reconstruction of the India-Asia collision system in the Campanian.
WOS关键词FOLD TEST ; RED BEDS ; ASIA ; COLLISION ; EVOLUTION ; EASTERN ; INSIGHTS ; BREAKUP ; PALEOLATITUDE ; COERCIVITY
资助项目National Natural Science Foundation of China[42104067] ; National Natural Science Foundation of China[41888101] ; National Natural Science Foundation of China[91855216] ; China Postdoctoral Science Foundation[2021M693152] ; China Postdoctoral Science Foundation[2023T160638]
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:001093945900001
出版者ELSEVIER
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation
源URL[http://ir.iggcas.ac.cn/handle/132A11/110677]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
通讯作者Deng, Chenglong
作者单位1.Chinese Acad Sci, Key Lab Cenozo Geol & Environm, Inst Geol & Geophys, Beijing 100029, Peoples R China
2.Capital Normal Univ, Coll Resources Environm & Tourism, Beijing 100048, Peoples R China
3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
5.Tibet Univ, Coll Sci, Lhasa 850000, Peoples R China
6.Univ Utrecht, Dept Earth Sci, NL-3584HD Utrecht, Netherlands
7.Tongji Univ, State Key Lab Marine Geol, Shanghai 200092, Peoples R China
推荐引用方式
GB/T 7714		 Yuan, Jie,Deng, Chenglong,Yang, Zhenyu,et al. New paleomagnetic data from the central Tethyan Himalaya refine the size of Greater India during the Campanian[J]. EARTH AND PLANETARY SCIENCE LETTERS,2023,622:16.
APA Yuan, Jie.,Deng, Chenglong.,Yang, Zhenyu.,Krijgsman, Wout.,Thubtantsering, Huafeng.,...&Zhu, Rixiang.(2023).New paleomagnetic data from the central Tethyan Himalaya refine the size of Greater India during the Campanian.EARTH AND PLANETARY SCIENCE LETTERS,622,16.
MLA Yuan, Jie,et al."New paleomagnetic data from the central Tethyan Himalaya refine the size of Greater India during the Campanian".EARTH AND PLANETARY SCIENCE LETTERS 622(2023):16.

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来源：地质与地球物理研究所

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