The 144–140 Ma Mafic Dykes in North China and Northeast China Indicating Regional Extensional Tectonic Setting  

作　　者：XU Huan LIU Yongqing KUANG Hongwei PENG Nan 

机构地区：[1]College of Earth Science, East China University of Technology, Nanchang 330013, Jiangxi, China [2]Institute of Geological Survey, East China University of Technology, Nanchang 330013, Jiangxi, China [3]Institute of Geology, Chinese Academy of Geological Sciences, Beijing100037, China

出　　处：《Acta Geologica Sinica(English Edition)》2017年第1期353-354,共2页地质学报（英文版）

基　　金：financially supported by the Nature Science Foundation of China (grants No.41372109,90914003 and 41672111);China Geological Survey (grants No.12120115068901,1212011120142 and 12120114064301);the National Science and Technology Works Special Project (grant No.2015FY310100)

摘　　要：Objective Previous studies indicate that the North China Craton（NCC）had undergone the loss of thickened lithosphere and fundamental change of physical and chemical property of lithospheric mantle（the destruction of NCC）during the Mesozoic.The peak period of the destruction of NCC is estimated to be 130 Ma,accompanied by widespread metamorphic core complex,rift basins,A-type granites and mafic dykes. However, it remains greatly controversial on the tectonic setting of NCC in the pre- 130Ma.Objective Previous studies indicate that the North China Craton（NCC）had undergone the loss of thickened lithosphere and fundamental change of physical and chemical property of lithospheric mantle（the destruction of NCC）during the Mesozoic.The peak period of the destruction of NCC is estimated to be 130 Ma,accompanied by widespread metamorphic core complex,rift basins,A-type granites and mafic dykes. However, it remains greatly controversial on the tectonic setting of NCC in the pre- 130Ma.

关 键 词：NCC Ma Mafic Dykes in North China and Northeast China Indicating Regional Extensional Tectonic Setting The 144 SHRIMP 

分 类 号：P542[天文地球—构造地质学]