摘要
介绍利用高密度电法与地震映像法相结合的综合物探方法进行岩溶探测的工作原理,结合云南某区的勘探实例,分析其岩溶发育情况。经过对探测数据的抽道、连接、滤波和增益调节,二维反演和地形校正等处理,并结合勘探区的地质构造资料,得出结论为:2个剖面视电阻率分别呈"V"型低阻区或"U"型低阻区,深度地震反射波能量弱或基本不反射,岩溶发育,同时结合实地钻孔资料对勘探结果进行有效验证。最后指出应用综合物探方进行岩溶探测中法应注意的问题。
This paper introduces the principle of a comprehensive geophysical prospecting method combining high density resistivity method and seismic imaging in Karst exploration and its application in an area of Yunnan province.After the exploration data extraction,connection,filtering and gain adjustment,2D inversion and topographic correction,and combined with the data of geological structure in the exploration area,the main conclusions are as follows：2 profiles of apparent resistivity show ＂V＂ type of low resistivity zone or ＂U＂ type of low resistivity zone,depth seismic reflection wave energy is weak or no reflection,karst develops fully,at the same time,based on the drilling data to validate the exploration results.Finally,the problems which should be noticed in the application of integrated geophysical method in Karst detection are pointed out.
出处
《华北地震科学》
2013年第4期55-59,共5页
North China Earthquake Sciences
关键词
高密度电法
地震映像
钻孔验证
岩溶
high density resistivity method
seismic image
drilling test
karst
