成家山矿区铁矿预查区地质特征及物探勘查技术研究

Research on geological characteristics and geophysical prospecting technology of iron ore pre-investigation area in Chengjiashan Mining Area

研究了成家山矿区铁矿预查区地质特征,主要为预查区地层、岩浆岩、构造、矿化点分布、矿化点矿石特征等,主要研究了使用装备及主要技术参数、测地工作、直流激电工作等,通过在剖面上开展激电中梯及激电测深等物探方法,在物探剖面控制范围内,分析了剖面上极化和电阻率异常分布范围和异常特征。研究得出,在Ⅰ号剖面发现高阻高极化异常带4处,在Ⅱ号剖面发现高阻高极化异常带1处,在Ⅲ号剖面发现高阻高极化异常带2处,在Ⅳ号剖面发现高阻高极化异常带1处,该异常带可能是石英脉性磁铁矿引起。研究为下一步的地质勘查工作提供了技术支持。

This paper studied geological characteristics of the iron ore pre-investigation area in Chengjiashan Mining Area,mainly including the stratum,magmatic rock,structure,mineralization point distribution,and mineralization point ore characteristics of pre-investigation area,and the exploration methods,mainly studying the use of equipment and main technologies parameters,geodesic work,DC IP work,etc.,and through the development of geophysical methods such as IP mid-scale and IP sounding on the profile,the distribution range of polarization and resistivity anomalies on the profile were analyzed within the control range of the geophysical profile.And anomalous characteristics,the study found that 4 high-resistance and high-polarization anomalous zones were found on sectionⅠ,one high-resistance and high-polarization anomaly zone were found on sectionⅡ,and high-resistance and high-polarization anomaly zones were found on sectionⅢ.There are 2 places,and 1 place with high resistance and high polarization anomalous zone was found in sectionⅣ.This anomaly zone may be caused by quartz vein magnetite.The research provided technical support for the next step of geological survey work.