下雷锰矿床三维可视化建模及矿化空间结构分布规律分析  

3D Visualization Modeling and Mineralization Space Distribution Space Distribution Investigating of Xialei Mn Deposit

作　　者：李勇[1,2] 毛先成[1,2] 任佳[1,2] 高士娟[1,2] 

机构地区：[1]中南大学有色金属成矿预测教育部重点实验室,长沙 [2]中南大学地球科学与信息物理学院,长沙

出　　处：《地球科学前沿（汉斯）》2014年第6期370-382,共13页Advances in Geosciences

基　　金：国家“十二五”科技支撑计划课题(编号:2011BAB04B10)。

摘　　要：本文采用矿区二维剖面线串模型重构三维地质体表面模型的基本思路,构建了矿区地质体三维结构模型,并分析矿体与地层的空间分布关系,以及从二维、三维角度论证矿体受褶皱作用的影响;以地质数据库为基础,应用地质统计学理论方法建立锰品位实验半变异函数模型,进行矿化空间变化结构分析,获得锰品位在主轴、次轴、短轴方向的分布形态和品位变化规律,为深部找矿提供依据和技术支持。This paper is based on the basic ideas that refactored 3D geologic body surface model form 2D geological line string model and the geologic body 3D structure model was built, which was helpful to analyze the spatial distribution relationship between the formation and ore bodies. The pers-pective of ore bodies influenced by folding was proved from 2D and 3D. On the basis of the geolog-ical database, the manganese grade test half variation model was built in geostatistics method. Analyzing the mineralization space structure, the distribution form and grade change rule of spin-dle, secondary axial and short shaft were finished, which provides the basis and technological sup-porting for prospecting the rationality.

关 键 词：二维剖面 表面模型 三维结构模型 地质数据库 变异函数 

分 类 号：P61[天文地球—矿床学]