摘要
文章根据概率图解法原理,利用VB可视化编程技术,完成了概率图筛分软件的研制。并通过该软件对东升庙矿床矿石品位混合总体进行筛分处理,探究其成矿期次信息。已有研究结果表明:一次成矿作用形成的矿床,其矿石品位的累积概率图是一条直线。而东升庙矿床的8条代表性勘探线中4种主要成矿元素TS、Zn、Pb、Cu品位的累积概率图均为曲线且出现明显拐点,经多次作图检验证实有效拐点数为1,由此得到新的成矿期次信息,揭示该矿床经历了两期成矿作用,即中元古代同沉积-海底喷气矿化期和后生改造矿化期,这对于研究其成矿物质来源和成矿机理具有重要的意义。
According to probability diagram theory, probability diagram screening software has been finished using visual basic technique. Mixed massing of ore grades in the Dongshengmiao deposit has been screened in ore to seek new information of mineralization periods. Previous results suggest that cumulative probability curve of ore grades, which belongs to one mineralization period, show a straight - line. While cumulative probability curves of four primal elements like TS, Zn, Pb, and Cu from 8 representative exploration lines of the Dongshengroiao deposit all appear one apparent point, indicating new mineralizing period information. It is concluded that two mineralization periods, middle Proterozoic syn - deposition ocean floor exhalation mineralizing period and epigenetic mineralizing period, happed in the Dongshengmiao deposit.
出处
《地质与勘探》
CAS
CSCD
北大核心
2008年第1期89-93,共5页
Geology and Exploration
基金
国家重点基础研究发展计划项目(编号:2006CB403503)
国家自然科学基因项目(批准号:30572064)
国家自然科学重点基金项目(批准号:40234051)
内蒙古自治区质勘查招标项目(编号:2004-01-KY2)联合资助
关键词
概率图
筛分
东升庙
成矿期
probability diagram, screening, Dongshengmiao, mineralizing period
