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雷门沟钼矿属于角砾岩型钼矿床,就其赋存状态来说,从里到外为角砾岩钼矿体-角砾岩-正常围岩,矿体边界不清,矿体地表没有出露。角砾岩和围岩视电阻率差异明显,物探方法在该区具有物性前提。瞬变电磁法在该区的应用,取得了较好效果,建立了地质地球物理模型,为合理布置勘探工程寻找钼矿提供了依据。本文在简要介绍瞬变电磁法原理的基础上,以雷门沟钼矿勘查为例,重点对该方法技术的数据处理、资料解释、应用效果及一些技术问题进行了分析论述。
The Leimengou molybdenum deposit belongs to the breccia-type molybdenum deposit. As far as its occurrence state is concerned, from the inside to the outside, it is the breccia molybdenum ore body-breccia-normal surrounding rock with unclear boundary of the orebody, Not exposed. Apparent resistivity difference between breccia and surrounding rock is obvious, and geophysical methods have physical properties in this area. The application of transient electromagnetic method in this area has achieved good results, established geophysical and physical models, and provided the basis for the rational arrangement of exploration projects in search of molybdenum ore. Based on the brief introduction of the principle of transient electromagnetic method, taking the mine exploration of Leimengou as an example, this article focuses on the data processing, data interpretation, application effects and some technical issues of this method.