VLF和AMT在内蒙古小四家萤石矿勘察中的应用

THE APPLICATION OF VLF AND AMT TO THE EXPLORATION OF FLUORITE DEPOSITS

以内蒙古敖汉旗小四家萤石矿的勘查为例,在地质研究的基础上,对小四家隐伏萤石矿体进行甚低频和EH-4测量,结果表明甚低频和EH-4的组合使用在隐伏萤石矿体的勘查中效果明显,甚低频测量能够快速确定构造低阻带平面延伸规律,EH-4测量能够清晰显示构造低阻带深部展布形态,两者组合使用可以达到优势互补的目的,为下一步勘探提供科学依据。

With the development of technology and the increasing difficulty in finding new shallow deposits, the single and traditional method can hardly meet the demand of finding new mineral resources. This paper made a case study of VLF and EH-4 in the explora- tion of the Xiaosijia fluorite deposit in Aohan Banner, Inner Mongolia. On the basis of geological survey, the authors applied VLF and EH4 method to the exploration of the Xiaosijia fluorite deposit. According to the results, the combining method of VLF and EH-4 is useful in the exploration of concealed fluorite deposits, the VLF survey can quickly define the distribution characteristics of structures with low resistance, and the EH-4 survey can reveal the deep distribution of structures with low resistance. The two methods can make their respective advantages complementary to each other and offer scientific foundation for the future exploration.