CAJ | 학술논문

为了对比分析广域电磁法、音频大地电磁法(AMT)与可控源音频大地电磁法(CSAMT)的勘探效果，在山东某金矿的已知地质剖面开展了多种电磁法实验勘探，通过对比分析在相同剖面上的实验结果发现，相对于AMT而言，广域电磁法具有浅层分辨能力高、抗干扰能力强、工作效率高等优点；相对于CSAMT而言，则具有勘探深度大、抗干扰能力强、工作效率高等优点。关于广域电磁法的高频段广域电阻率与卡尼亚电阻率不重合现象、场源效应和阴影效应、电磁场多分量综合利用等问题上还值得探讨和研究。
위료대비분석엄역전자법、음빈대지전자법(AMT)여가공원음빈대지전자법(CSAMT)적감탐효과，재산동모금광적이지지질부면개전료다충전자법실험감탐，통과대비분석재상동부면상적실험결과발현，상대우AMT이언，엄역전자법구유천층분변능력고、항간우능력강、공작효솔고등우점；상대우CSAMT이언，칙구유감탐심도대、항간우능력강、공작효솔고등우점。관우엄역전자법적고빈단엄역전조솔여잡니아전조솔불중합현상、장원효응화음영효응、전자장다분량종합이용등문제상환치득탐토화연구。
A variety of electromagnetic exploration methods, involving the wide field electromagnetic method, the audio magnetotelluric method (AMT) and the controlled source audio frequency magnetotelluric method (CSAMT), were carried out on a known geologic profile of a gold mine in Shandong Province, with the purpose of comparison in the real exploration effects. Through the comparison of the exploration results, from the same section, it is found that the wide field electromagnetic method has advantages of shallow high resolution capability, strong anti-interference ability and high survey efficiency compared with AMT, and it is better than CSAMT in the exploration depth, anti-interference ability and working efficiency. However, the study and research should be moved further including the inconsistency phenomenon between the wide field electromagnetic resistivity and the Cagniard resistivity at high frequency, source effect and static effect, and the utilization of electromagnetic multi-components.