试说中国陆内构造变形和其地球动力学特征  

Tectonic Deformation of Continental Interior and Its Geodynamics in China

作　　者：赵重远[1] 靳久强[2] 

机构地区：[1]西北大学含油气盆地研究所,西安710069 [2]中国石油勘探开发研究院,北京100083

出　　处：《地质学报》2007年第11期1498-1506,共9页Acta Geologica Sinica

摘　　要：中国陆内构造变形主要始于晚二叠世中国北方进入后海西地台发展时期。印支期末以至喜马拉雅期,随着特提斯洋的关闭,大陆范围也随即向中国南方和青藏地区增生和扩展。中国的陆内构造变形从后海西地台形成的准平原化阶段即已开始。但规模巨大的变形则发生于燕山构造旋回中期和喜马拉雅旋回。陆内构造变形的规模可分两个等级:一是覆盖整个中国大陆的,另一是局部的。前者两次改变了中国构造-地貌的整体面貌;后者则表现为造山、造盆和微陆块纵向或横向的逃逸,以及由此引起的造山或造盆。根据中国陆内构造变形特征及其与区域构造背景演化的关系分析认为,中国陆内构造变形主要是由周边洲级规模板块运动引起的,同时,随着地壳上部构造变形引发的地壳或岩石圈均衡调整,则使地下深处产生相应的构造响应。The tectonic deformation of Chinese continental interior started mainly from the Late Permian, when the Northern China entered the developing stage of post-Hercynian platform. From the late Indosinian to the Himalayan period, the limits of the continent had expanded to Southern China and the Qinghai-Tibet area along with the closing of the Tethyan Ocean. Though the tectonic deformation of Chinese continental interior had already started during the peneplanation phase of the post-Hercynian platform, the large-scale deformation took place in the middle of Yanshanian cycle and Himalayan cycle. The scope of continent interior deformation can be divided into two grades： one covers the whole continent and the other is local. The former is that the deformation of Chinese continental interior has reformed the features of the tectonics-landform of China twice. The latter resulted in the mountain-making and basin-making, and the vertical and lateral escape of micro-landmass, from which mountains and basins form. According to the features of the continent interior deformation and its relationship with the evolution of regional tectonic settings, the interior deformation of the Chinese continent was caused mainly by the movements of the surrounding plates with a continental scale. Meanwhile, the tectonic response occurring in the deep earth was the result of the crustal or lithospheric isostatic adjustment caused by the structural deformation in upper crust.

关 键 词：中国陆内构造变形 陆内造原 陆内造阶 陆内造山 陆内造盆 微陆块纵向和横向逃逸 

分 类 号：P541[天文地球—构造地质学]