相变脱水——震源区水内部来源的一种可能的方式

本文由分析我国西北某些地区地壳上地幔电性结构特征出发,讨论了地震区地壳上地幔内的物理环境与地震活动关系方面的某些问题。並以1932年昌马大震震区深部热力学环境为例,结合前人某些岩石物理实验、固体破坏的实验和理论研究结果,讨论了在地震孕育过程中,在震源区内发生某些矿物脱水的可能性。

PHASE TRANSITION DEHYDRATION-A POSSIBLE WAY OF INTERIOR SOURCE OF THE WATER IN THE FOCAL REGION

In the DD model of earthquake,it is supposed that the water come from outside of focal region. It was indicated that the high conductivity layer in middle earth''s crust, which often appears in the earthquake belt and becomes the bottom of the focal region of some large earthquakes, may supply rich water for fluid diffusion^1]. But is there some interior source of water in the focal region? We take the deep physical circumstance of the focal region of the Changma earthquake in 1932,as an example to illustrate that it is possible for some earthquakes.