摘要
在爆破地震测深工作中，为了更加深入地研究地壳上地幔的速度结构特征，往往在某些关键地区布置非纵观测系统，与广角反射相配合，实现对测区的地壳结构在三维空间上的控制。然而，对于爆破地震测深中非纵资料的处理及解释，就目前来说，尚无一个成熟且完善的方法。本文从一般化的情形入手，即目标界面为倾斜的平界面，而且目标界面可以存在错动，对目标界面反射波的运动学特征进行分析，对非纵资料的处理及解释方法进行研究和探讨。实际应用结果表明，该方法在非纵数据处理及解释工作中是十分有效的。
In order to study crustal velocity structure fineIy in deep Scisinic Sounding.a fan profile is arrangd in some interested area. Comdining with the data from wide-angle reffection profile. 3- D crustal velocity struc-ture in the studied region can be controlled. However. do tor there is no a goud method in data prooessing and interpretation for fan profile. Here,a method is put forward,in which the target intersurfaoc is deseribed as a dip plane and the velocity of overlaid medium is a constant.also the target intersurfaoe xan be interrupted by fault.Through model experiment and analysis fur reflection data from target intersurface,the kinematio characteristics for reflection traveltimes is studied and discussed.Applying this method to real datd shows that the method is very efficient for data processing and interpretation in deep seismic soumding
出处
《物探化探计算技术》
CAS
CSCD
1994年第1期1-8,共8页
Computing Techniques For Geophysical and Geochemical Exploration
