物探技术与方法在招远市留仙庄地区金矿普查中的应用

随着我国矿产勘查开发力度的不断加强,地表矿、浅部矿、易识别矿日趋减少,矿产勘查工作正朝着寻找隐伏矿、深部矿、难识别矿的方向转变。因此,深部地质勘查研究日趋具有非常重要的意义。在招远市留仙庄矿区利用可控源音频大地电磁测深(CSAMT)及频谱激电测深(SIP)法对深部异常进行查探,共布设2条物探剖面,分别为108号、132号勘探线剖面。通过CSAMT与SIP测量工作,大致确定了招平断裂带的产状,对2条剖面CSAMT测量结果对比,大致确定了2条剖面所测区域在招平断裂带沿产状向下延伸位置及对应关系,圈定了3处高极化异常区域。该次工作充分发挥物探优势,验证了物探方法在深部找矿勘查中的有效性,总结了存在的问题,为下一步地质勘查工作提供可靠依据。

Application of Geophysical Prospecting Methods in General Survey of Gold Deposit in Liuxianzhuang Area in Zhaoyuan City

Accompanying with continuous development of mineral exploration in our country, surface mine, shallow mine, and easy to identify minerals are decreasing. Exploration of mineral resources is changing to search for hidden ore, deep or and difficult to identify ores. Therefore, the study on deep geological exploration is of great significance. By using controlled source audio frequency magnetotelluric sounding (CSAMT) and spectrum sounding (SIP) method, deep anomalies in Liuxianzhuang area of Zhaoyuan city have been explored. Two geophysical profiles have been laid respectively, they are No.108 and No.132 exploration line profiles. Through CSAMT and SIP measurements, the occurrence of Zhaoyuan-Pingdu fault belt has been determined roughly. Comparing CSAMT measurement results of two profiles, position and the corresponding relationship between the two profiles in the region of Zhaoyuan-Pingdu fault along the occurrence and downward have been generally identified. Three high polarization anomaly areas have been circled. In this work, the advantages of geophysical exploration have been played well. The effectiveness of geophysical prospecting methods in deep prospecting has been verified, existing problems have been summarized, and a reliable basis for the next step of geological exploration has been put forward.