摘要
通过黔东南某铅锌矿的勘查实例,说明这样一个地质问题,在贵州山区采用物探方法间接找矿,倡导采用大比例尺联合电法勘探是必要的。据工区地球物理条件,如瞬变电磁法(TEM)和双频激电法的结合,一来两种方法能互为补充、相互印证,二来可靠性、分辨率得到保证,去伪存真、找矿效果能体现,最终观测异常已得到钻探工程验证。所提取的物探电性异常与地质体露头有较好的对应关系。
With the example of one lead-zinc mine in the southeast of Guizhou,a geological problem is discussed in this paper： it is necessary to use a large scale in the electrical method exploration.According to the geophysics condition in the working areas,if TEM and dual-frequency IP are combined,for one thing,the two methods can make up what the other lacks;for another,they are reliable,because the resolution is secured.In the end,the abnormity observed has been verified through the engineering exploration drilling.
出处
《工程地球物理学报》
2010年第3期352-358,共7页
Chinese Journal of Engineering Geophysics
关键词
TEM
双频激电
视电阻率
视极化率
TEM
dual-frequency IP
apparent resistivity
visualized polarization
