摘要
提出了几个难以用断层弹性回跳模型解释的地震实例 ,指出必须重视地壳上地幔结构的探测和深部流体的研究。然后用简单模型说明 ,没有流体的存在 ,则不可能发生岩体间快速的错动。重点探讨发生在地壳内 10～ 2 5km深处的强震孕育和发生机理 ,分析了深部流体的迁移和岩体的错动。最后结合实例 ,给出了在发生深部流体迁移的条件下 。
First of all, this paper presents several examples which cannot be explained with the elastic respond theory and indicates that we must attach importance to the earth's crust and up mantle investigations, and then shows that if there were no fluids, there would not be the sudden movement between rock masses in the earth's crust. The mechanism of large earthquakes that occurred in the 10-25km depth of the earth's crust is discussed. The transplant of deep-seated fluids and the rock mass movement in the earth's crust are discussed with models afterwards. Finally the energy released from an earthquake and the maximum acceleration of rock mass movement while earthquake occurring are quantitatively presented in a condition of existing fluid transplant with examples.
出处
《华南地震》
2002年第3期1-10,共10页
South China Journal of Seismology
