瑞雷-泰勒不稳定性与中国东部岩石圈——三论岩石圈地幔蘑菇云构造

Rayleigh–Taylor instability and lithosphere of eastern China

本文讨论引起中国东部岩石圈巨变的动力。认为较重的岩石圈地幔位于较轻的软流圈之上形成的瑞雷-泰勒不稳定性驱动岩石圈地幔流动是东部岩石圈巨变的构造动力。由于瑞雷-泰勒不稳定性只存在于中年期大陆,老年期与青年期大陆都不存在瑞雷-泰勒不稳定性,因而只有像中国东部那样的中年期大陆才能发生蘑菇云地幔构造。

This paper deals with the dynamic sources responsible for tremendous changes of the lithosphere in eastern China.It seems that the flow of mantle caused by Rayleigh-Taylor instability is the main tectonic force.As Rayleigh-Taylor instability exists only in intermediate continent,mushroom cloud mantle can occur only in such intermediate continents as eastern China.