华夏古陆活动大陆边缘的探讨  

DISCUSSION ON THE ACTIVE CONTINENTAL MARGINOF CATHAYSIA

作　　者：邓家瑞[1] 张志平[1] 

机构地区：[1]华东地质学院

出　　处：《江西地质》1998年第1期1-7,共7页Jiangxi Geology

摘　　要：本文阐述了华南中元古代晚期活动陆缘特征。根据带内前寒武纪地层分布、古地磁、侵入作用、构造变形、深部构造、中元古代晚期沉积作用及火山岩岩石化学特征，证明活动陆缘是南华洋壳向南部古大陆俯冲的产物。武陵运动是华南最重要的运动，华夏古陆与扬子地块碰撞，形成统一的“华南古大陆”。This paper deals with the features of late Middle Proterozoic active continental margin in South China. From data available concerning the distribution of Precambrian strata, paleomagnetism, intrusion, structural deformation, deep-seated structure, late Middle Proterozoic sedimentation and petrochemistry of volcanic rocks etc., the authors arrive at the conclusion that this active continental margin was produced by the subduction of South China oceanic crust against the southern paleocontinent, that the Wuling movement is the most important movement in South China, and that collision of Cathaysia with the Yangzi block hads given birth to a unified“South China Old Continent'.

关 键 词：前寒武纪 华夏古陆 大陆边缘 古陆活动 

分 类 号：P736.15[天文地球—海洋地质] P534.41[天文地球—海洋科学]