Research On 3D Geological Modeling Of Saibo Copper Mine Area In Xinjiang

Based on the national key research and development program "Demonstration of Large-scale Deep Exploration Technology in mineral resource base of Tianshan-Altai Zengsheng Orogenic Belt",this paper uses computer modeling technology and combines geological data and geophysical data to identify(infer and speculate)the underground three-dimensional distribution of ore-forming related geological bodies and structures in Saibo copper mine area,and at the same time constructs corresponding spatial databases,and on this basis establishes a three-dimensional geological model of the mining area.The key technical issues involved include: the research results of metallogenic theory in the study area constrain the three-dimensional inversion of geophysical data,so as to be able to combine the information of underground geological body distribution and occurrence change,the research results of metallogenic theory with geophysical inversion to obtain the interpretation results as accurate as possible;The high degree of logicalization and structuralization among metallogenic theory,geological data,geophysical data and inversion results enables the data model of spatial database to have the characteristics of "theory+data" double-layer and multi-perspective so as to realize the multi-level and multi-perspective processing,analysis and expression of theoretical results in the three-dimensional geological model.Construction of geological interface with less constraints.The main research results of this paper are as follows:(1)The geological factors that are most closely related to the mineralization in the Saibo copper mine area have been determined,the main target geological bodies for modeling have been established,and the spatial database construction of the Saibo copper mine area has been completed through sorting and classifying the previous achievements and some field data collected so far;(2)In order to serve the model construction,high-precision magnetic survey was selected to carry out supplementary exploration on the main target geological bodies,and a three-dimensional magnetic susceptibility model of the study area was established.(3)Based on the established spatial database of the Saibo copper mine area,combined with the three-dimensional magnetic susceptibility model of the study area,the three-dimensional geological model of the Saibo copper mine area is preliminarily established by GOCAD software system.