地质统计学在某铜矿床资源量估算中的应用

Application of Geostatistics in Estimation of Resource Reserves of a Copper Deposit

地质统计学主要研究既有随机性又有相关性的特征变量在空间的分布规律。在资源量估算方面,地质统计学则是以矿石品位的精确估计为目的,以矿化空间结构为基础,以区域化变量为核心,以变异函数为基本工具的一种数学地质方法。本文通过地质统计学在某铜矿床中的实际应用,计算出了合适的实验变异函数,拟合出符合矿床特征的理论结构模型,最后采用普通克立格法达到了对铜品位和资源量的精确估计。

Geostatistics mainly studies the spatial distribution of both random and correlative characteristic variables.In resource estimation,geostatistics is a mathematical geological method based on precise estimation of ore grade,mineralized spatial structure,regionalized variables as the core,and variation function as the basic tool.Based on the practical application of geostatistics in a copper deposit,this paper calculates the reasonable experimental variation function,obtains the theoretical structure model which conforms to the characteristics of the deposit,and finally achieves the accurate estimation of copper grade and mineral resource by using the ordinary Kriging method.