| 危机矿山深部、边部隐伏矿体的三维可视化预测——以安徽铜陵凤凰山矿田为例 |
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| 引用本文： | 毛先成,邹艳红,陈进,赖健清,彭省临,邵拥军,疏志明,吕俊武,吕才玉.危机矿山深部、边部隐伏矿体的三维可视化预测——以安徽铜陵凤凰山矿田为例[J].地质通报,2010,29(2). |
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| 作者姓名： | 毛先成 邹艳红 陈进 赖健清 彭省临 邵拥军 疏志明 吕俊武 吕才玉 |
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| 作者单位： | 1. 中南大学地学与环境工程学院/教育部有色金属成矿预测重点实验室,湖南,长沙,410083
2. 铜陵有色金属集团股份有限公司,安徽,铜陵,244000 |
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| 基金项目： | 国家"十一五"科技支撑计划iBM，国家"973"计划前期研究专项课题，铜陵有色金属集团股份有限公司校企合作项目联合资助 |
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| 摘 要： | 以安徽铜陵凤凰山矿田为例.通过综合地质研究,构建了矿体定位预测概念模型.在地质勘探数据和物化探数据集成的基础上,采用三维地质建模技术,对地层、构造、岩浆岩、矿体等地质体进行了推断和圈定,构建了地质体的线框模型与块体模型.基于定位预测概念模型和地质体三维块体模型,通过地质空间定义和立体单元划分,建立了岩体及其表面形态起伏、接触带、地层、褶皱、断层等控矿地质因素的三维栅格场模型.在定量分析控矿地质因素与矿化分布的关系的基础上,建立了反应这种关联关系的矿体立体定量预测模型.预测模型提供矿田深部(-1000m标高以上)所有50m×50m×50m立体单元的铜品位、铜金属量和含矿概率的预测结果.基于预测结果圈定了4个深部找矿立体靶区,为深部找矿工程的设计、布置提供尚未发现的臆伏矿体的位置、品位、金属量等信息的指导.
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| 关 键 词： | 危机矿山 隐伏矿体 三维地质建模 成矿预测 矿产资源定量评价 凤凰山矿田 |
Three-dimensional visual prediction of concealed ore bodies in the deep and marginal parts of crisis mines: a case study of the Fenghnangshan ore field in Tongling, Annul, China |
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| MAO Xian-cheng,ZOU Yan-hong,CHEN Jin,LAI Jian-qing,PENG Sheng-lin,SHAO Yong-jun,SHU Zhi-ming,Lü Jun-wu,Lü Cai-yu.Three-dimensional visual prediction of concealed ore bodies in the deep and marginal parts of crisis mines: a case study of the Fenghnangshan ore field in Tongling, Annul, China[J].Geologcal Bulletin OF China,2010,29(2). |
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| Authors: | MAO Xian-cheng ZOU Yan-hong CHEN Jin LAI Jian-qing PENG Sheng-lin SHAO Yong-jun SHU Zhi-ming Lü Jun-wu Lü Cai-yu |
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| Abstract: | By taking the Fenghuangshan ore field in Tongling, Anhui as a case study, the concept model for ore body location predication was built through the general geological investigation of the ore field. Based on the integration of geological geophysical andgeochemical exploration data, the geological bodies such as strata, structures, magmatic bodies and ore bodies were inferred and delineated by means of three-dimensional geological modeling, and then the wireframe and block models of the geological bodies wereconstructed. From the concept model of location predication and the 3D block models of geological bodies, we've obtained thethree-dimensional raster models of the geological ore-controlling fields of the magmatic body and its surface relief, the contact zone,the strata, the folds, the faults and so on. By analyzing quantitatively the correlation relationship between the geological ore-controllingfactors and the mineralization distribution, the stereoscopic quantitative predication models of ore bodies to reflect the relationship wereset up. With the predication models, the predication results, including copper grade and copper tonnage of all cubic cells with size of 50m×50m×50m in die deep parts (above the elevation -1000m ) of ore field were provided. On the basis of the predication results, 4 cubic target areas for deep prospecting were delineated, which provides guidance on the location, grade, tonnage and other information of undiscovered concealed ore bodies for the design and layout of deep prospecting engineering. |
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| Keywords: | crisis mine concealed ore body three-dimensional geological modeling metallogenic predication quantitative evaluation of mineral resources Fenghuangshan ore field |
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