摘要
影响激电探测结果的因素很多,主要因素是矿物的成分、结构和含水性。本文从实验的角度建立导电矿物含量与激电二次场之间的分布规律,采用室内模拟完成相同介质、相同湿度条件下不同电极距的探测,以及同一电极距条件下不同导电矿物含量的激发极化探测。分析对比得出不同导电矿物含量与视电阻率、视极化率之间的定量关系,得出二次场视极化率衰减规律与导电矿物含量为指数型函数关系。在各种反演图件进行宏观定性分析基础上,利用数据优化得出视金属因素与导电矿物含量之间的定量关系。
There are a lot of factors that influence IP detection result,but the main factor is the composition,structure and water resistance of mineral.From the aspect of the experiment,this paper builds up the distribution law of the conductive mineral content and the induced electrical secondary field,using indoor simulation to finish the probe of different electrode distance in the same medium and the same humidity;Under the same conditions from the same electrode with different mineral content of induced polarization conductivity probe.By analyzing and comparing,we obtain the quantitative relationship of the apparent resistivity and apparent polarizability of different conductive mineral content and obtain the exponential function between attenuation of secondary market apparent polarization and conductive mineral content.Based on various inversion maps and macro qualitative analysis,using data optimization,we get quantitative relationship between apparent metal elements and conductive mineral content.
出处
《工程地球物理学报》
2010年第6期667-673,共7页
Chinese Journal of Engineering Geophysics
关键词
激发极化法
模拟试验
二次场
视金属因素
induced polarization method
simulation test
secondary field
apparent metallic modulus
