气候变化领域集成服务门户(CCPortal): Passive crustal clockwise rotational deformation of the Sichuan Basin since the Miocene and its relationship with the tectonic evolution of the fault systems on the eastern edge of the Tibetan Plateau

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DOI	10.1130/B31965.1
	Passive crustal clockwise rotational deformation of the Sichuan Basin since the Miocene and its relationship with the tectonic evolution of the fault systems on the eastern edge of the Tibetan Plateau
	Tong Y.; Sun Y.; Wu Z.; Mao C.; Pei J.; Yang Z.; Pu Z.; Zhao Y.; Xu H.
发表日期	2019
ISSN	167606
起始页码	175
结束页码	190
卷号	131 期号:2021-01-02
英文摘要	We conducted a paleomagnetic study of the Upper and Lower Cretaceous red-beds in the Yibin area, in the southern part of the Sichuan Basin. High-temperature magnetic components were isolated between 580 °C and 695 °C. An ambiguous fold test resulted in alternative interpretations of the Cretaceous primary magnetization or Oligocene- Miocene remagnetization. Nevertheless, the two different interpretations of the paleomagnetic data consistently show that the Yibin area on the southern edge of the Sichuan Basin experienced clockwise rotation, relative to the eastern edge of the South China Block and Europe. A comparison with the Cretaceous and Paleogene paleomagnetic data from the northern and western part of the Sichuan Basin indicates that, except for the southeastern corner of the Sichuan Basin, the crust of the Sichuan Basin generally experienced significant clockwise rotational deformation since the early Miocene. The northeastward escape of the Songpan-Ganzi Terrane and the counterclockwise rotation of the Yangtze Fold Belt applied a right-lateral shear stress to the region surrounding the Sichuan Basin since the Miocene, which induced the passive crustal clockwise rotational deformation of the Sichuan Basin. Subsequently, the non-synchronous crustal rotational deformation of the Sichuan Basin and its surrounding blocks controlled the tectonic evolution of their boundary tectonic belts: for example, the right-lateral strike-slip movement of the Longmenshan fault belt and the southeastward extension of the Xianshuihe strike-slip fault since the Miocene. © 2018 Geological Society of America.
语种	英语
来源期刊	Bulletin of the Geological Society of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/184971
作者单位	Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing, 100081, China; Key Laboratory of Paleomagnetism and Tectonic Reconstruction, The Ministry of Land and Resources, Beijing, 100081, China; School of Earth Sciences and Engineering, Hohai University, Nanjing, 210098, China; College of Resources, Environment and Tourism, Capital Normal University, Beijing, 100048, China
推荐引用方式 GB/T 7714	Tong Y.,Sun Y.,Wu Z.,et al. Passive crustal clockwise rotational deformation of the Sichuan Basin since the Miocene and its relationship with the tectonic evolution of the fault systems on the eastern edge of the Tibetan Plateau[J],2019,131(2021-01-02).
APA	Tong Y..,Sun Y..,Wu Z..,Mao C..,Pei J..,...&Xu H..(2019).Passive crustal clockwise rotational deformation of the Sichuan Basin since the Miocene and its relationship with the tectonic evolution of the fault systems on the eastern edge of the Tibetan Plateau.Bulletin of the Geological Society of America,131(2021-01-02).
MLA	Tong Y.,et al."Passive crustal clockwise rotational deformation of the Sichuan Basin since the Miocene and its relationship with the tectonic evolution of the fault systems on the eastern edge of the Tibetan Plateau".Bulletin of the Geological Society of America 131.2021-01-02(2019).