论文部分内容阅读
Gazli地区水平和垂直位移资料的反演表明,1976年4月和5月以及1984年3月的Gazli地震发生在各种不同取向的断层面上(倾向分别为ESE,N和ESE)。1984年地震破裂的运动特征展示了一次2.5m的纯逆断层滑动。1976年破裂序列期间,不同事件的普通资料对求解破裂特征并不理想。然而,以下三点明确显示了断层的复杂性:(1)两次地震的不同倾角可分辨得很明显;(2)断层面上运动的走滑分量(具有接近1984年地震的逆冲运动分量);(3)1976年4月地震的大地测量和地震的断层模型间不一致。这些结果表示了激发复合板间地震的复杂力学过程。
Inversions of horizontal and vertical displacement data from the Gazli region show that the Gazli earthquakes in April 1976 and March 1984 and March 1984 occurred on fault planes of various orientations (predominantly ESE, N and ESE, respectively). The movement characteristics of the 1984 earthquake rupture show a pure 2.5m pure thrust fault slip. During the 1976 rupture sequence, general information on different events was not ideal for solving rupture characteristics. However, the complexity of the fault is clearly shown by the following three points: (1) The different dip angles of the two earthquakes can be clearly distinguished; (2) the strike-slip component of the motion of the fault plane (with the thrust component close to the 1984 earthquake ); (3) The inconsistency between the geodesy of the April 1976 earthquake and the fault model of the earthquake. These results show the complicated mechanical processes that arouse the earthquake between composite plates.