| 地质统计学在细脉型矿体模拟中的应用:以新疆梅岭-红石铜矿为例 |
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| 引用本文： | 张会琼,刘金辉,王京彬,赵路通,孙紫坚,韩英,熊靓辉.地质统计学在细脉型矿体模拟中的应用:以新疆梅岭-红石铜矿为例[J].地球科学,2018,43(9):2980-2986. |
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| 作者姓名： | 张会琼 刘金辉 王京彬 赵路通 孙紫坚 韩英 熊靓辉 |
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| 作者单位： | 北京矿产地质研究院, 北京 100012 |
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| 基金项目： | 国土资源部行业科研基金项目201411026 |
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| 摘 要： | 细脉状矿体由于矿脉厚度小且沿走向和倾向品位变化较大，致使其在资源模拟中很难实现三维建模.通过构建高斯变换的二维变异函数转载到单层三维块体模型，首次完成了对新疆梅岭-红石铜矿区细脉状矿体的三维建模.这一成果弥补了二维模型在空间形态、品位变化特征上的不足，避免了采用传统极小的子块模型匹配实体模型所产生的高平滑效应.单层三维块体模型能够更加有助于实际采矿生产中块段划分，具有创新性，并为矿产资源评价和开发设计提供基础，对同类矿体的三维建模具有重要的指导意义.
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| 关 键 词： | 细脉型矿床 地质统计学 变异函数 高斯变换 矿床学 |
| 收稿时间： | 2018-01-21 |
Narrow Vein Ore Body Modeling by Geostatistics: An Example from Meiling-Hongshi Copper Mine in Xinjiang |
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| Abstract: | 3D resource modeling of the narrow vein ore body is challenging due to its small thickness and large grade variations along the vein. This paper completed the three-dimensional modeling for narrow vein ore body of Meiling-Hongshi copper mine in Xinjiang, by building two-dimensional variation function Gaussian transformation into a single 3D block model. This study makes up for the lack of spatial morphology and grade change characteristics in the two-dimensional model. In addition, it avoids the high-smoothing effect of single-layer three-dimensional block model. The innovative monolayer 3D block modeling is not only more helpful to the partition of blocks in actual mining production, but also provides a basis for mineral resources evaluation and development design, which can facilitates future three-dimensional modeling of similar orebodies. |
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