玉龙—哈巴雪山断块差异隆升的基本特征及其地质灾害效应  

Basic characteristics of the differential uplift of the Yulong-Haba block and its geological hazard effects

作　　者：张西娟[1] 曾庆利[2] 马寅生[1] 

机构地区：[1]中国地质科学院地质力学研究所,北京100081 [2]中国科学院地质与地球物理研究所工程地质力学重点实验室,北京100029

出　　处：《中国地质》2006年第5期1075-1082,共8页Geology in China

基　　金：中国地质调查局地质大调查项目(1212010511508);国家重点基础研究发展规划项目(2002CB412701)资助。

摘　　要：青藏高原新生代以来的持续性、阶段性隆升是地球演化过程中重要的地质和环境事件。尤其是晚新生代以来的加速隆升,使青藏高原主体及其周缘地区成为中国大陆地貌的最高一级阶梯。笔者主要从新构造运动条件下青藏高原东南缘玉龙—哈巴雪山断块这样一个典型的第四纪以来断块快速差异隆升的地区出发,通过详细研究该断块的组成以及几何学运动学特征来探讨其隆升机制,并在此基础上进一步研究该快速隆起的地质灾害效应(如地震、崩塌、滑坡和泥石流等)及其对本区地质灾害发育和发展的控制作用,进而得到地球内动力地质作用与重大地质灾害(外动力地质作用)之间存在必然的耦合关系的结论。The continuous and periodic uplift of the Qinghai-Tibet Hateau since the Cenozoic is an important geological and environmental event during the evolution of the Earth. Especially the accelerated uplift of the plateau since the Late Cenozoic has made the Qinghai-Tibet Plateau and its peripheral areas become the highest step of continental China. The paper focuses on the uplift mechanism of the plateau through a detailed study of the composition and geometric and kinematic features of the Yulong-Haba block-a typical Quaternary rapidly and differentially uplifted area on the southeastern margin of the Qinghai-Tibet Plateau, and on that basis, the paper further studies the effect of the rapid uplift on geological hazards （e.g. earthquakes, avalanches, landslides and mudflows） and its controls on the occurrence and development of geological hazards. In the last, it is concluded that there exists a coupling relationship between the Earth＇s endogenic geological processes （rapid differential block uplift） and the exogenic geological processes （major geological hazards）.

关 键 词：新构造运动 玉龙-哈巴雪山断块 差异隆升 地质灾害效应 丽江地震 滑石板滑坡 地球内外动力耦合作用 

分 类 号：P542[天文地球—构造地质学] P694[天文地球—地质学]