ObjectiveThe Himalaya terrain together with the ribbon terrains (e.g., Lhasa, Qiangtang, and Sibumasu blocks) of the Gondwana supercontinent has experienced episodic tectonic events since the Neoproterozoic. However...ObjectiveThe Himalaya terrain together with the ribbon terrains (e.g., Lhasa, Qiangtang, and Sibumasu blocks) of the Gondwana supercontinent has experienced episodic tectonic events since the Neoproterozoic. However, almost not any documentation with regard to the tectonic processes links the peri-Gondwana subduction between 510-480 Ma with the Carboniferous-Permian (-360-260 Ma) continental rifting event. This possible link is important for testing and formulating the tectonic model for the evolution of the present-day Himalayan orogenic belt, if we consider this belt has also experienced typical Wilson cycle plate tectonics. Recently, we have found several lines of evidence which imply that the Himalayan terrain and possibly other ribbon terrains of the eastern Gondwana have experienced unrecognized tectonic processes during the Late Ordovician to Early Silurian.展开更多
Mafic dike swarms are well-developed within the Tethyan Himalaya,southern Tibet,in response to the breakup of Gondwana supercontinent,seafloor spreading of the Tethyan Ocean,and forearc hyperextension during the
基金supported by the National Science Foundation of China(grants No.41425010,41503023 and 41273034)China Geological Survey(grant No.12120115027101)+1 种基金Special Fund for Scientific Research in the Public Welfare(grant No.201511022)the Outlay Research Fund of Institute of Geology(grant No.J1516)
文摘ObjectiveThe Himalaya terrain together with the ribbon terrains (e.g., Lhasa, Qiangtang, and Sibumasu blocks) of the Gondwana supercontinent has experienced episodic tectonic events since the Neoproterozoic. However, almost not any documentation with regard to the tectonic processes links the peri-Gondwana subduction between 510-480 Ma with the Carboniferous-Permian (-360-260 Ma) continental rifting event. This possible link is important for testing and formulating the tectonic model for the evolution of the present-day Himalayan orogenic belt, if we consider this belt has also experienced typical Wilson cycle plate tectonics. Recently, we have found several lines of evidence which imply that the Himalayan terrain and possibly other ribbon terrains of the eastern Gondwana have experienced unrecognized tectonic processes during the Late Ordovician to Early Silurian.
基金supported by National Science Foundation of China (Grant No. 41425010, 41503023 &41273034)China Geological Survey (Grant No. 12120114022701 & 12120115027101)
文摘Mafic dike swarms are well-developed within the Tethyan Himalaya,southern Tibet,in response to the breakup of Gondwana supercontinent,seafloor spreading of the Tethyan Ocean,and forearc hyperextension during the