【摘要】 利用河西地区2001—2004年的GPS数据和水准数据及2003—2004年的重力数据,结合带惯性权重的粒子群算法与位错理论模型,给出3种数据的附有相对权比的联合反演断层滑动速率的模型。对该地区的主要断层三维滑动速率进行的联合反演计算结果表明:河西地区的主要断层均以逆冲为主,具有挤压趋势,其中阿尔金断裂、祁连山断裂、皇城-塔尔庄断裂以及龙首山断裂北部活动较强烈,且这些活动断层与地震孕育和发生可能相关。更多还原

【Abstract】 By using the particle swarm optimization algorithm combined with the dislocation model,the model for jointly inversing three-dimensional slip velocity of fault has been constructed.The three-dimensional slip velocity of the main faults in Hexi area was inversed from GPS data in 2001-2004,leveling data in 2001-2004 and gravity data in 2003-2004.The results show that the main faults in Hexi are thrust faults,and all of then have compressional trend.The activities of Altyn Tagh fault,Qilian Mountain fault,Huangcheng-Ta’erzhuang fault and the north part of Longshou Mountain are strong.There the occurrence of earthquake may be related with those fault.更多还原