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

基金项目: 中国地质调查局 “中国地质构造区划综合研究与区域地质调查综合集成”项目（1212010811033）资助。

RayleighTaylor instability and lithosphere of eastern China

1.
Center of Development and Research, China Geological Survey, Beijing 100037, China
2.
Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China

摘要: 提要：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。
Abstract: Abstract：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.
- lithosphere of eastern China /
- mushroom cloud of lithospheric mantle /
- Rayleigh-Taylor instability