南海北部陆缘反“S”型构造带的提出及其在新生代晚期地质演化中的作用  

Proposal of reverse “S” structure zones along continental margin of north South China Sea and their actions on geologic evolution in Late Cenozoic Era

作　　者：钟建强[1] 黄慈流[1] 詹文欢[1] 

机构地区：[1]中国科学院南海海洋研究所,广州510301

出　　处：《台湾海峡》1996年第2期120-126,共7页Journal of Oceanography In Taiwan Strait

基　　金：所长基金

摘　　要：通过地震剖面、地形－地貌、断裂构造、地壳结构、中新生代沉积盆地、第四纪地质特征等分析，认为南海北部陆缘存在滨岸岛键、陆坡北缘和陆坡南缘三条反“S”型构造带。它们形成于晚第三纪，较“新华夏系”和“南海系”晚。反“S”型构造带新生代晚期的活动方式，对南海北部陆缘的地质演化影响显著，同时控制了这一区域的灾害性地质因素的活动方式和分布。By analyzing the seismic profile, landform, fault system, crustal construction, Mesozoic-Cenozoic basin, Quaternary geology, and so on, it is suggested that there are three reverse'S' structure zones, i. e. Littoral-Island Zone, North Slope Margin Zone and South Slope Margin Zone, along the continental margin of north South China Sea. They were formed in Late Tertiary, Later that those of the 'Neocathaysian System'and the 'South China Sea System'. The active state of reverse 'S' structure zones in Late Cenozoic have played obvious actions on the geologic evolution of the continental margin of north South China Sea,and controlled the activities and distrbutions of geologic disaster factors, such as earthquake,active fault, volcano, and slide, in this area.

关 键 词：构造带 南海 北部陆缘 地质演化 新生代 

分 类 号：P736.15[天文地球—海洋地质] P547[天文地球—海洋科学]