论文部分内容阅读
利用１９８０年１月至１９９１年２月间江苏及邻区天然地震的Ｐ波初动符号，按不同深度分层计算平均节面解，分析江苏及邻区现代应力场空间分布特征。结果表明，应力场主压应力方向为ＮＥＥ—ＳＷＷ方向，主张应力为ＮＮＷ—ＳＳＥ方向。在不同深度上表现出中、深部层应力方向较一致。
Based on the P wave initial sign of natural earthquakes in Jiangsu and its adjacent areas from January 1980 to February 1991, the mean section solution was calculated by stratification at different depths to analyze the spatial distribution characteristics of modern stress field in Jiangsu and its adjacent areas. The results show that the principal stress direction of stress field is NEE-SWW direction, and the principal stress is NNW-SSE direction. At different depths show that the stress direction of the middle and deep layers more consistent.