三维时间域激发极化法探测试验研究

本文介绍采用我国自主研制的“大深度三维电磁探测系统”在甘肃柳园花牛山铅锌矿开展的三维时间域激发极化法探测试验研究成果。文章对比了单一方向供电与多方向供电探测结果,并对成果进行了地质解译。研究显示：垂直主构造供电三维数据反演结果较为可信,多方向供电数据联合反演有利于提高探测结果的可靠性;利用三维时间域激发极化法探测结果建立三维电性结构模型,对解构地下三维地质结构效果明显;异常与以往地球物理资料及地质资料吻合。根据试验结果弄清了矿体的容矿层位、矿体与地层的关系,可为深部地质结构推断与矿产资源评价提供依据。

Experimental study on 3D TDIP exploration

This paper demonstrates the three-dimensional time-domain electromagnetic exploration experimental result of lead-zinc mine in Gansu Liuyuan Huaniushan using of the "High Depth of the 3D Electromagnetic Exploration System" independently developed by China. We compares test results of single different directions with multi-directional transmit method and achievements of the geological interpretation. Study shows that multi-directional power detection results of data reliability necessary; three-dimensional time-domain electromagnetic probing through the establishment of a three-dimensional model of the electrical structure of deconstruction 3D subsurface geological structure effect is obvious; anomalies and geophysical data and geological data in the past good correspondence. According to the test results to clarify the relationship between the capacity of the ore body seam position, with the formation of the ore body, provide the basis for deep geological formations inferred Mineral Resource Assessment.