天水地震区人工地震测深观测系统与观测资料

THE OBSERVATION SYSTEM AND THE DATA OF DSS IN TIANSHUI EARTHQUAKE AREA

摘要:

本文详细介绍了天水地震区人工地震测深工程测线、测点分布及11个爆破源参数。观测系统以两条交叉的纵测线为主体,在其西北方向设置一条不完整的纵与非纵测线用以获取重点测区的反射波资料。为控制测区南北两部分的中间层和莫氏面深度,设置南北两炮点利用东西方向测线构成大面积的网状非纵观测系统。总计得到1300道有效记录。

Abstract:

In this paper it is described that the observation system for deep seismic sounding (DSS) in Tianshui earthquake area.The main profiles include crossing length wises with 9 shots.The length of E-W profile is about 460 km and N-S is 240 kin.In order to study the crustal layering structure and the Moho depth in the both side of E-W line.two shot points had been desigaed as a fan profiles at the correspond area,such a net observation system can obtain more information about crustal deep structure.In sum we get.actual records up to 1300.