青藏高原与三江并流区新构造期划分及环境演化  

A STUDY ON THE NEOTECTONIC DIVISION & ENVIRONMENT EVOLUTION OF QING-ZANG PLATEAU & THREE PARALLEL RIVERS AREA

作　　者：明庆忠[1] 

机构地区：[1]云南师范大学旅游与地理科学学院,昆明650092

出　　处：《云南地质》2007年第4期387-396,共10页Yunnan Geology

基　　金：国家自然科学基金(40462002;40161002);国家973项目子项目(2003CB1405-10);云南省自然科学基金重点项目(2004D0005Z)

摘　　要：青藏高原隆升成为高亚洲的重要组成部分,是新生代环境演化的重要事件。青藏高原在新构造期上升阶段可划分为非高原-准平原时期和高原发育时期(包括低高原阶段、高高原阶段、世界屋脊阶段)。作为青藏高原东南部和东南缘的三江并流区,新构造时期上升阶段可划分为:地表夷平-准平原时期、高原雏形-岭/盆/谷形成时期、强烈抬升-高原形成期、高原裂解-纵向岭谷发育期等。各新构造期的构造运动的环境效应有所不同。经漫长的地质历史演进,形成独特的自然地理环境。The Qing - Zang plateau uplift which becomes an important part of High - Asia is a milestone of environment evolution in Cenozoic. In neotectonics, the uplift stage of Qing - Zang plateau can be divided into the nonplateau - peneplain stage and the plateau development stage （ including low plateau stage, high plateau stage and the world roof stage）. In the uplift stage of neotecton- ics, the three parallel rivers area which belongs to the SE part and SE margin of Qing - Zang plateau can be divided into the surface planation - peneplain stage and the embryonic plateau - ridge/basin/ valley formation stage, the intense uplift -plateau formation stage and the plateau split -longitudinal ridge/valley development stage. The environment effect of tectonic movement in each neotectonic stage is different from one another. The distinct natural geographical environment is formed in the long evolution of geological history.

关 键 词：新构造期准平原 高原发育和裂解 环境演变 青藏高原 三江并流区 

分 类 号：P546[天文地球—构造地质学]