|
The development of electrical detection technology and quantitative interpretation of results, 3D geological modeling, and the search for hidden mines have made conducting electrical 3D inversion and 3D visualization expression an important research topic. The three-dimensional nature of underground space determines the limitations of using two- dimensional profile measurement results to interpret three-dimensional underground geological bodies. 3Dinversionand3D visual expression are carried out based on the high-density electrical method 2D profile survey data in GuiLest BarQin mining area, Inner Mongolia. The continuous distribution of near east-west low resistivity anomaly zone reflects that there is a low resistivity structural zone in the contact zone of Jurassic and Devonian strata, and the structural attitude is nearly vertical; the polarizability anomaly body is distributed on both sides of the corresponding low resistivity structural belt. The strength and scale of the anomaly indicate that the mineralization is mainly distributed in the Jurassic strata close to the structural belt, followed by continuous mineralization in the deep Devonian strata far away from the structural belt. The mineralization projection on the surface corresponds to the IP anomaly, and has certain specificity with the Jurassic Tuff. The three-dimensional inversion and visualization results of high-density electrical method 2D profile measurement data in the mining area directly reflect the spatial occurrence of the structure and the spatial position relationship with mineralization, the exclusive relationship between mineralization and rock strata, and the corresponding relationship between mineralization and IP anomalies, indicating the direction for further exploration work.
|
