陕西小秦岭金矿带潼关段区域三维定量预测  

3D positioning and quantitative prediction of the Xiaoqinling gold belt in Tongguan area,Shaanxi

作　　者：史蕊[1] 陈建平[1] 陈珍平[1] 王丽梅[1] 田毅[1] 王翔[1] 王春女[1] 严琼[1] 

机构地区：[1]中国地质大学(北京)国土资源与高新技术研究中心/北京市国土资源信息研究开发重点实验室,北京100083

出　　处：《地质通报》2011年第5期711-721,共11页Geological Bulletin of China

基　　金：陕西省潼关县人民政府委托项目<陕西省潼关县"数字国土"及金矿资源潜力评价>

摘　　要：依靠三维可视化技术,进行深部隐伏矿体的定位定量预测,是现代矿产资源预测的主流技术和方法。根据地质异常理论,在找矿模型的指导下,利用商业建模软件Micromine建立了研究区的地形、地层、构造、岩浆岩和探矿工程模型,结合找矿信息量法圈定了8处成矿远景区,并采用体积法和丰度估计法估算了整个研究区的资源量。在此基础上,将研究区典型矿脉已知矿体的立方块模型与预测矿块进行重合率统计,定量地评价了本次预测的有效性。结果表明,小秦岭金矿带潼关段仍有较好的开发利用潜力,具有良好的勘探前景;基于三维可视化技术的区域三维预测方法行之有效。The performance of the 3D positioning and quantitative prediction of buried ore bodies based on 3D visualization technology seems to be a main means for predicting mineral resources.According to geoanomaly theory,under the guidance of the mineral exploration model,and by means of commercial 3D modeling software Micromine,the authors constructed topography,stratigraphy,structure,magmatite and project models,delineated eight prospect areas with the help of the traditional quantitative predicting method,and estimated gold deposit resources in the study area by using the method of abundance and volume.The contact ratios between known ore blocks and predicted blocks were calculated,thus quantitatively evaluating the validity of this prediction.The result shows that the Xiaoqinling gold belt in Tongguan still has a good potential for development and utilization and the 3D prediction method based on 3D visualization technology is very effective.

关 键 词：陕西潼关地区 区域 三维 立方体预测模型 

分 类 号：P618.51[天文地球—矿床学] P628[天文地球—地质学]