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

Abstract

Research Article| August 15, 2018 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 Yabo Tong; Yabo Tong † 1Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China2Key Laboratory of Paleomagnetism and Tectonic Reconstruction, the Ministry of Land and Resources, Beijing 100081, China †tyb816@163.com Search for other works by this author on: GSW Google Scholar Yujun Sun; Yujun Sun 1Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China Search for other works by this author on: GSW Google Scholar Zhonghai Wu; Zhonghai Wu 1Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China Search for other works by this author on: GSW Google Scholar Changping Mao; Changping Mao 3School of Earth Sciences and Engineering, Hohai University, Nanjing 210098, China Search for other works by this author on: GSW Google Scholar Junling Pei; Junling Pei 1Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China2Key Laboratory of Paleomagnetism and Tectonic Reconstruction, the Ministry of Land and Resources, Beijing 100081, China Search for other works by this author on: GSW Google Scholar Zhenyu Yang; Zhenyu Yang 4College of Resources, Environment and Tourism, Capital Normal University, Beijing 100048, China Search for other works by this author on: GSW Google Scholar Zongwen Pu; Zongwen Pu 1Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China Search for other works by this author on: GSW Google Scholar Yue Zhao; Yue Zhao 1Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China2Key Laboratory of Paleomagnetism and Tectonic Reconstruction, the Ministry of Land and Resources, Beijing 100081, China Search for other works by this author on: GSW Google Scholar Hao Xu Hao Xu 1Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China Search for other works by this author on: GSW Google Scholar GSA Bulletin (2019) 131 (1-2): 175–190. https://doi.org/10.1130/B31965.1 Article history received: 07 Nov 2017 rev-recd: 13 Jun 2018 accepted: 15 Jul 2018 first online: 15 Aug 2018 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Yabo Tong, Yujun Sun, Zhonghai Wu, Changping Mao, Junling Pei, Zhenyu Yang, Zongwen Pu, Yue Zhao, Hao Xu; 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. GSA Bulletin 2018;; 131 (1-2): 175–190. doi: https://doi.org/10.1130/B31965.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGSA Bulletin Search Advanced Search Abstract 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. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.