地质统计学在桂中三水铝矿床勘查评价中的应用  

Application of Geostatistics in Exploration and Evaluation of Gibbsite Deposits in Central Guangxi Province

作　　者：黄国有[1] 卢光辉[1] 林最近 苟晓利 

机构地区：[1]广西壮族自治区二七四地质队,广西北海536005

出　　处：《地质与勘探》2016年第4期751-758,共8页Geology and Exploration

摘　　要：桂中三水铝矿床是我国唯一的大型三水铝矿床,初步查明(333+334)铝土矿资源量7.7亿吨。本文介绍地质统计学方法在桂中三水铝土矿床勘查和资源量评价中的应用,包括桂中三水铝矿床典型矿区变异函数的计算和模型拟合;最优变异函数模型的确定;利用变异函数变程确定最佳勘查工程间距的实例分析;利用地质统计学方法进行矿体边界和资源量类别的自动化划分以及资源量估算。The gibbsite deposits in central Guangxi Province are the unique large-scale gibbsite deposits in China with mineral resources of 770 million tons confirmed initially. This paper presents the applications of the geostatistics method to exploration and resource evaluation of this deposit, including the calculation and fitting of the variograms of typical gibbsite deposits, determining the best exploration project spacing using the variograms;automatic classifi- cation of resources and estimation of resource amount.

关 键 词：三水铝 地质统计学 变异函数 勘查评价 资源量估算 

分 类 号：P618[天文地球—矿床学]