摘要
激电测深法是一种成熟、经典的电法勘探方法,以对称四极装置为主,其操作简便,在我国应用非常广泛,在矿产资源和工程勘查方面发挥了巨大作用。异常体的精确性绝大部分是依靠对实测数据的反演计算,反演方法的好坏决定了勘探效果,激电中梯普查测量能有效地圈定金属硫化矿床的激电异常,针对激电异常布设了激电测深工作,采用IX1D正反演软件对激电测深数据进行了2.5D反演拟合计算,大致判断了异常体的赋存状态,定性、定量的计算出隐伏矿床的产状、埋深、规模及空间展布特征等,为钻孔验证提供了基础依据,并且通过钻孔编录资料佐证了正反演拟合计算的准确性。
IP sounding is a mature and classical electrical prospecting method,which is mainly based on symmetrical quadrupole device.It is easy to operate and widely used in China.It plays an important role in mineral resources and engineering exploration.The accuracy of the anomaly body mostly depends on the inversion calculation of the measured data.The inversion method determines the exploration effect.In this paper,the IP anomaly of metal sulfide deposits can be effectively delineated by IP mid-terrace survey.In view of the IP anomaly,the IP sounding work is laid out.The 2.5D inversion fitting calculation of IP sounding data is carried out by using IX1D forward and inversion software.The occurrence,burial depth,scale and spatial distribution characteristics of the concealed deposits are determined qualitatively and quantitatively,which provides a basic basis for borehole verification,and the accuracy of forward and inverse fitting calculation is verified by borehole cataloguing data.
作者
孙磊
薛宝林
张丽
李春波
于蒙
罗晓春
SUN Lei;XUE Bao-lin;ZHANG Li;LI Chun-bo;YU Meng;LUO Xiao-chun(Team Of North China Geological Exploration Bureau,Baoding 071051,China)
出处
《河北地质大学学报》
2019年第6期29-32,共4页
Journal of Hebei Geo University
关键词
激电测深
激电异常
高阻高极化
IP sounding
IP anomaly
high resistivity and high polarization
