蒙自白牛厂银多金属矿床的变异函数分析

发布时间：2018-02-23 18:17

本文关键词： 变异函数白羊—穿心洞对门山—阿尾勘查网度　出处：《高校地质学报》2017年02期 　论文类型：期刊论文

【摘要】：变异函数是地质统计学的核心和基本工具。它既能描述区域化变量的空间结构性变化,又能描述其随机性变化,变异函数分析是许多其它地质统计学计算的基础。文章基于地质统计学理论,以变异函数为主要工具,分别构建白羊—穿心洞矿段和对门山—阿尾矿段Pb、Zn元素品位变异函数模型。其中,二种主成矿元素的连续性在走向上最好,倾向次之,厚度方向最差。根据变异函数的变程,确定了不同矿段的最佳勘查网度,建议白羊—穿心洞矿段勘查网度为50 m×30 m,对门山—阿尾矿段因变化性较小,勘查网度可采用80 m×75 m。
[Abstract]:Variation function is the core and basic tool of geostatistics. It can describe both the spatial structural changes of regionalized variables and the random changes of regional variables. Variable function analysis is the basis of many other geostatistical calculations. The variation function models of Pb ~ (2 +) Zn element grade in the Baiyang-Chuanxindong ore segment and the Duanshan-A tailings section are constructed respectively. The continuity of the two main ore-forming elements is the best in the direction of direction, the second is the tendency, and the direction of thickness is the worst. The optimum exploration net degree of different ore sections is determined. It is suggested that the exploration mesh of the Baiyang-Chuanxindong ore section is 50 m 脳 30 m, and that of the Mengshan-A tailings section is less variable, so the exploration mesh can be adopted at 80 m 脳 75 m.
【作者单位】：中南大学地球科学与信息物理学院;昆明理工大学国土资源工程学院;
【基金】：国家自然科学基金(41272111)资助
【分类号】：P618.2

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