云际铀矿床三维地质模型构建及分析

Construction and Analysis of 3D Geological Model for Yunji Uranium Deposit

云际铀矿床位于相山矿田的东北部,为南北向、北东东向断裂和火山塌陷构造复合部位,矿区范围内断裂构造十分发育,云际主断层是本矿床的主要含矿构造。云际铀矿床的矿体严格受云际主断层的控制,主要矿体均赋存在该断层上盘附近。文章采用SKUA-GOCAD软件进行地形地貌模型、钻孔模型、构造-地层模型、岩体模型和矿体模型等地质体三维地质模型的构建。利用三维地质模型可以直观查看地质体之间关系,结合地质背景和成矿规律对矿床的成矿远景进行了预测。

Located in the northeast part of Xiangshan ore field,Yunji deposit is controlled by SN and NEE faults and the volcanic collapse structure.Faults are densely developed in the deposit area and the main fault is Yunji fault which strictly control and host most of the ore bodies.The main ore bodies are located near the up wall of the fault.In this paper,GOCAD software was used to construct the three-dimensional models of geological bodies,such as landform,borehole,structure-stratum relation,pluton and ore body.The 3D model was used to analyze the relation of geological bodies and made the prediction for new metallogenic prospects.