中国及邻区中新生代大型大陆扩张盆地及其造山作用  

Meso-Cenozoic great continental spreading basins and their orogeny of China and adjacent regions

作　　者：郭福祥[1] 

机构地区：[1]桂林工学院隐伏矿床预测研究所,广西桂林541004

出　　处：《桂林工学院学报》2000年第4期338-343,共6页Journal of Guilin University of Technology

基　　金：广西壮族自治区自然科学基金资助项目(桂科自9517009)研究成果

摘　　要：中国及邻区中新生代大型大陆扩张盆地的特点和性质取决于距离相邻相关大洋的位置。从陆内到中新生代特提斯洋岸和北西太平洋岸 ,分别发育了陆内、陆缘和边缘盆地 ,各有 3个系列 ,羽状对称排列 ,越近洋岸 ,活动性越强 ,演化世代越新。发育时期 ,盆地处于扩张状态 ,属于扩张性大地构造单元 ,具有造山作用 ,对于塑造造山带细部形态起决定性作用 ,成为造山带造形“砥柱”。中国及邻区中新生代造山作用有 3种类型 ,大陆扩张盆地造山作用、大洋扩张盆地造山作用和大洋 -大陆扩张盆地复合造山作用。Characteristics and nature of the Meso-Cenozoic great continental spreading basins in China and adjacent regions depend on the relative positions of the allied adjacent oceans. Intracontinental,epicontinental and marginal basins were respectively developed from the inland to the Meso-Cenozoic Tethys coast and Northwest Pacific coast,each having three series. These series are symmetrically arranged in feather-form.The general thrend is that the closer they are to the coasts,the stronger their activity,and the newer their evolutionary generations. The basins were in a spreading state and belonged to geotectonic spreading units possessing orogeny in their devolopment period. They play a decisive role in mould-making of orogenic belt in detailed morphology and become the orogenic 'mighty pillar' of mould-making.The Meso-Cenozoic orogeny of China and adjacent regions can be divided into three kinds:orogeny of continental spreading basin,orogeny of oceanic spreading basin and composite orogeny of oceanic-continental basin.

关 键 词：盆地 扩张作用 造山作用 中新生代 华南及邻区 

分 类 号：P544.4[天文地球—构造地质学] P542.2[天文地球—地质学]