本文应用板块构造学说,通过对地层沉积亚相与建造序列的分析,结合构造——岩浆事件和同位素记年资料,把地质上习称“康滇地轴”构造带的古板块历史演化分为以下三个大的发展阶段:一.康慎古岛弧褶皱带的形成——在漫长的前震旦纪构造发展历程中,“康滇地轴”实际上是西边—古洋板块与东侧扬子微大陆边缘上的古岛弧带,其板块边界类型同现代西太平洋的弧沟系大体相仿。 Based on the tectonic theory of plate tectonics, this paper analyzes the sedimentary subfacies and construction sequence of sedimentary strata, combining the tectonic-magmatic events and isotopic dating data, For the following three major stages of development: I. Formation of the Chengen Island arc fold belt - In the course of the long development of the Pre-Sinian tectonics, the “Kang-Dian axis” is actually the west- The ancient island arc belt on the margin of the side Yangtze Microfei continental margin is similar to the arc groove system in modern western Pacific.