广东及其邻区的华夏系方向构造

广东地块为我国东南沿海华夏系方向巨型构造带向西南延续的部分。同时又是南岭纬向构造带横亘穿越的地段。尤以前者最为显著。探索华夏系方向构造,无疑将有助于认识广东及其邻近地区地壳发育的主要历史图景,认识地壳运动的某些规律。对于华夏系方向构造概念的历史演绎、体系厘定和命名准则等问题,已有专文论述。本文仅就华夏系方向构造的主要特征、地史过程、动力作用方式等问题进行讨论。

ON THE CATHAYSIAN STRUCTURAL SYSTEM IN GUANDONG PROVINCE AND ITS NEIGHBORING REGIONS

This paper discusses the Cathaysian structural system developed in Guandong and its neighboring regions, describes their general characteristics and traces the processes of its development. An emphasis has been laid on the stress and strain picture developed since the Paleozoic. The time and space variations of the active belts, including the tendency of their migrations toward the Pacific, have been summarized. It is pointed out that the study of the Cathaysian structural system may promote a better understanding of crustal movements.