Precambrian tectonics represents one of the key research topics in the science of earth system.The preserved oldest continental crust is composed of felsic rocks with ages older than 3.8 Ga.

• 摘要前寒武纪地质构造是地球系统科学研究的一个承前启后的重要组成部分，现存最古老的固体地球物质是38亿年前的大陆长英质岩石。