摘要
采用“863”子课题研究成果地壳结构重磁地震综合反演解释系统 ,对东海南部方向为118 68°、长度为 72 5km的重力、磁力、地震综合探测剖面进行了综合解释与研究 ,制作了该剖面的岩石圈地学断面图。在此基础上 ,对研究区地壳结构、冲绳海槽盆地的成因与性质 ,以及菲律宾板块西缘俯冲带情况进行了分析 ;对基隆凹陷深部地层及岩浆岩的分布提出了一些新的认识
By using the result from a sub_project of "863" Plan(i.e. An Comprehensive Inversion Interpretation System of Gravity, Magnetic and Seismic for Crustal Structure), a 725km long profile along 118.68°E was interpreted and studied through integratedly applying gravity, magnetic and seismic data, and its lithospheric section was mapped in the southern East China Sea. Based on these studies, we have analysed the crust structure in the study area, the origin and nature of Okinawa Trough and the subduction zone along the west margin of Philippine Plate, and presented some new ideas of deep sediments and magmatic rocks in Jilong sag.