LATE MESOZOIC SUBDUCTION PROCESS BENEATH SOUTHEASTERN CHINA AS REVEALEDBY THE SPATIAL- TEMPORAL PATTERN OFMAGMATISM

作     者：WANG Yang 1, DENG Jin fu 1, WANG Ji yang 2 and XIONG Liang ping 2 (1. Division of Petrology, China University of Geosciences, Beijing 100083, China 2. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China) 

作者机构：Division of PetrologyChina University of GeosciencesBeijing 100083China Institute of Geology and GeophysicsChinese Academy of SciencesBeijing 100029China 

出 版 物：《Geotectonica et Metallogenia》 (大地构造与成矿学（英文版）)

年 卷 期：2001年第25卷第1期

页      面：68-70页

学科分类：0709[理学-地质学] 081803[工学-地质工程] 07[理学] 08[工学] 0818[工学-地质资源与地质工程] 

基　　金：the NN SFC(Grant No. 49733110 ) the Min-istry of L and and Resources of China (Project No. 2 0 0 0 10 10 2 0 6  2 0 0 0 10 10 2 0 2 )  and theostdoctoral Science Foundation of China 

主　　题：LATE MESOZOIC SUBDUCTION PROCESS BENEATH SOUTHEASTERN CHINA AS REVEALEDBY THE SPATIAL TEMPORAL PATTERN OFMAGMATISM AS 

摘      要：Southeastern China covers an extensive area from the lowerreaches of the Yangtze Riverto the southeast coastof China *** of its main geological features isthe extensiveJura- Cretaceous (Yanshanian) magmatism and related metallogenesis. Recently,some re-searchers advocate the mantle plume model as an explanation,but all of their evidences artoo ***,the seaward convex shape of the SE China coastline,which isdominantly composed of Jura- Cretaceous batholiths and volcanic strata,implies thatit was aconvergent margin between SE China continent and the palaeo- Pacific plate during the lateMesozoic *** betterunderstanding on the relation among magmatism,tectonic regimeand dynamics,the spatial- temporal pattern of late Mesozoic (180 - 90 Ma) igneous rocks isconstructed by nearly2 0 0 isotope age valuesfrom *** these age values,mostwere obtained by Rb- Sr isochron method,and others from zircon U- Pb or40 Ar- 3