摘要
应用长白山火山区的水准和GPS资料 ,采用Mogi源模型对火山区的压力源参数进行联合反演 ,并考虑天池火山南侧断层的影响 ,利用Okada的断层位错模型对长白山火山区近年来的主要活动区天池火山的地下岩浆的可能变化进行推测 ,得出以下结论 :长白山天池火山浅层目前为单一的压力源 ,位置仍在天池老火山口一带 ;近几年岩浆上涌活动比较明显 ;天池南侧的北西向隐伏断裂有一定的活动性。
On the basis of the Mogi point source model,the pressure source parameters are inversed jointly with the leveling and GPS data of the Changbaishan volcanic area in 2002 and 2003.At the same time it is thought of that the displacements are caused by one potential fault in the south of Tianchi area.The results show that one lower source is estimated to be located in the old Tianchi volcano at a depth 7.8 km and it is more active in late years.
出处
《大地测量与地球动力学》
CSCD
2004年第4期90-94,共5页
Journal of Geodesy and Geodynamics
基金
科技部社会公益研究专项资金 (2 0 0 1DIA10 0 0 3 )
