3D Geological Modeling Of The Copper And Polymetallic Deposits In The Jiulong County,Sichuan Province

The 3D geological modeling of ore deposits is a fundamental step in the realization of"digital mine".This step makes the deposit in the three-dimensional space showing the shape of the concrete,the distribution of the deposit,and the spatial distribution of the surrounding rock in the mining area,which is of great significance for the management of the mining and the mining operation during the exploitation and utilization of the mine.In this paper,the principle of geostatistics and the three-dimensional modeling technology of computer are used to study the copper ore in the Wu copper polymetallic deposit in the Jiulong County of Sichuan province.After the collection and arrangement of the geological and text data of the ore deposit,the three-dimensional geological modeling technology of the large mine software Surpac in the process of mine exploration is synthetically studied.The main achievements and are as follows:?1?On the basis of collating and analyzing the collected data of the Li Wu copper deposit,the geological database of the Li Wu copper deposit,which contains the borehole information of the study area,it was set up to realize the visualization of the deposit in the study area.?2?Based on the mineral deposit modeling software Surpac,the main orebodies,rock mass,and other important geological bodies in the old mining area of the Li Wu copper mine are simulated,and the morphological characteristics of the ore bodies are reproduced in a three-dimensional way.?3?By using the function of the Surpac software database analysis module,based on the statistics and analysis of the original samples that have been arranged into the database,the most suitable combination sample length is preliminarily determined,and the attribute data of the drilling samples are combined and analyzed,and the experimental variation function and the theoretical variation function cross validation.Then a block model of copper ore body was successfully created by Surpac software.?4?On the basis of the established block model,the grade of copper ore body is estimated and distributed by the method of distance power inverse ratio,thus the grade model of A₂ copper ore body is obtained.