青藏高原的形成和隆升机制综述  

The Summarizing for the Forming and Uplified Mechanism of Qinghai-Tibet Plateau

作　　者：刘瞭 迟效国[1] 李才[1] 杨日红[1] 

机构地区：[1]吉林大学地球科学学院,吉林长春130026

出　　处：《世界地质》2001年第2期105-112,共8页World Geology

基　　金：原地质矿产部"九五"基础研究重点资助项目 (95 0 110 1- 5 )

摘　　要：青藏高原的形成和隆升问题是十分复杂的热点问题 ,受到了全球地质学者的普遍关注。高原的形成是印度板块和欧亚板块碰撞挤压导致地壳增厚、挤压抬升、地面剥蚀均衡和深部热作用的共同结果。目前青藏高原隆升过程是多阶段、非均一、隆升速率由慢到快、更新世 (约 3Ma)以来进入快速隆升期的认识日趋达成共识 ,但在隆升机制方面存在着多种模式 (三阶段模式、叠加压扁热动力模式、拆沉模式、陆内俯冲模式和断块隆升模式等 )的解释。随着来自地质、地球物理和地球化学等方面的资料积累、测量仪器精度的提高以及数学模拟方法的改进 。Recently,as a very complicated hotspot,the forming and uplifted of Qinghai-Tibet Plateau have universally interested by many geologists all over the world.The forming of the Qinghai-Tibet plateau is effect of the collsion of India block and Eurasia block which result in crust incrassation and uplift of Qinghai-Tibet plateau,the ground denudation and equilibrium and the thermal process in plateau.At present,there is a common understand about the uplifted course of the Qinghai-Tibet plateau,considers the uplift of Qinghai-Tibet plateau is multistage,heterogeneous,the speed of uplift is slow at first,but become fast gradually,and in Pleistocene(about 3 Ma) it turn into a sudden uplift period.But to its uplifted mechanism,there are many interprets with modes,such as three-stage mode,congruence and stave heat dynamical mode,delanimation mode,diving in continent mode and the uplift of the broken blocks mode, et al.With the continuous improvement of the methods of study,the more and more datas from geology,geophysics and geochemistry,the advance of survey instruments'precision and the amelioration of the method of mathmatics simulation.There will have more reasonable intepretion to the forming and uplifted mechanism of Qinghai-Tibet Plateau.

关 键 词：青藏高原 形成 隆升机制 第三纪 拆沉模式 陆内俯冲模式 数学模拟 

分 类 号：P542.1[天文地球—构造地质学]