【摘要】 根据现有研究资料 ,应用ANSYS有限元软件 ,推算了天水强震多发区历史地壳温度场结构 ,研究了中地壳低速高导体的成因。认为中下地壳含水岩石高温脱水反应及重力分异、流体向上运移 ,是该地区中地壳低速高导体形成的可能原因。更多还原

【Abstract】 Based on deep geophysical detecting results, applying ANSYS software, the authors calculate the history temperature structure of crust in chosen area, and discussed the possible reasons causing the middle crust layer with low velocity and high conduction. The result reveals that Dehydration of the rock in crust in high temperature, different density rock separating each other and fluid’s upward moving are the possible reasons.更多还原