常规物探方法在深部隐伏矿体勘查中的应用——以河北四家井铁铜矿为例

高精度磁测不仅能够发现强磁性铁矿床,亦能对主要控矿容矿构造、地质单元进行划分和圈定;时间域激发极化法,通过中梯普查测量能有效地圈定金属硫化矿床的激电异常,对该异常的激电测深测量,可定性、定量地计算出隐伏矿床的产状、埋深、规模及空间展布特征等.文章阐述了在河北省涞水县四家井铁铜矿深部矿体勘查中采用电、磁法结合的方式取得了较好的地质找矿效果.

Application of conventional geophysical techniques to prospecting deeply concealed ore bodies

High-precision magnetic survey can not only detect strong magnetic iron deposit but also delineate major ore-control and ore-hosting fractures and geological units. The mid ladder scan of time-domain IP can effectively locate IP anomly of sulfide ore body and the IP sounding survey of the anomly can qualitatively and quantitatively calculate occurrence, depth, size and spatial distribution of the buried deposits. This paper describes application of the combined electric and magnetic survey to prospecting deep ore bodies in Sijiajing Fe-Cu deposit, Laishui county, Hebei province. The prospecting result is quite good.