地质统计学在某铜矿床资源量估算中的应用
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摘要
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.
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.
引文
[1]陈道贵,胡乃联,李国清.区域化变量非正态分布的稳健性[J].北京科技大学学报,2009,31(4):413-417.
[2]刘春学,秦德先,洪托.变异函数在大厂锡矿的应用[J].昆明理工大学学报,1999,24(1):171-176.
[3]潘登,晏国龙,于建杰,等.地质统计学在夜长坪钼矿资源储量估算中的应用研究[J].矿产勘查,2012,3(3):397-403.
[4]罗周全,王中民,刘晓明,等.基于地质统计学与Surpac的某铅锌矿床储量计算[J].矿业研究与开发,2010,30(2):4-6.
[5]杨建宇,秦德先,康泽宁,等.地质统计学在北衙金矿的应用[J].矿业研究与开发,2006,26(2):14-17.
[2]刘春学,秦德先,洪托.变异函数在大厂锡矿的应用[J].昆明理工大学学报,1999,24(1):171-176.
[3]潘登,晏国龙,于建杰,等.地质统计学在夜长坪钼矿资源储量估算中的应用研究[J].矿产勘查,2012,3(3):397-403.
[4]罗周全,王中民,刘晓明,等.基于地质统计学与Surpac的某铅锌矿床储量计算[J].矿业研究与开发,2010,30(2):4-6.
[5]杨建宇,秦德先,康泽宁,等.地质统计学在北衙金矿的应用[J].矿业研究与开发,2006,26(2):14-17.