,Zircon U-Pb age of Fengxian acid pyroclastic rocks and its enlightenment to the existence of Pan-Af

• 作 者: Yong Wang Yong-hong Shi Bai-lin Chen Ren-wen Tan Yun Gao Jing-hui Shen
• 机 构: Laboratory of Dynamic Digenesis and Metallogenesis, Institute of Geomechanics, Chinese Academy of Ge
• 出 处: 中国地质（英文）
• 发表日期: 2019年4期

1.Objective The formation of East Gondwana and its combination with West Gondwana is a result of a series of complex orogenic events,known as Pan-African orogeny.The Northe Qinling Mountain is a microcontinent that formed on the ancient oceanic crust in the northe of Yangtze craton before Neoproterozoic.It is likely that the North Qinling,even the Yangtze craton and its surrounding oceanic crust belong to the ancient Gondwana tectonic domain and be a part of East Gondwana supercontinent (Chen Q,2007).