云南省东南部新寨锡矿床矿化趋势面分析  

Mineralization trend surface analysis of the Xinzhai tin deposit in southeastern Yunnan province

作　　者：苏志宏 贾福聚[1] 念红良 李山志 李凌霄 孙福周 杨策婷 SU Zhihong;JIA Fuju;NIAN Hongliang;LI Shanzhi;LI Lingxiao;SUN Fuzhou;YANG Ceting(Department of Earth Sciences,Kunming University of Science and Technology,Kunming 650093,China;Yunnan Institute of Nonferrous Metal No.317 Geological Party,Qujing Yunnan 655000,China)

机构地区：[1]昆明理工大学国土资源工程学院,昆明650093 [2]云南省有色地质局三一七队,云南曲靖655000

出　　处：《有色金属（矿山部分）》2023年第6期135-140,147,共7页NONFERROUS METALS(Mining Section）

基　　金：中国地质调查局项目(DD20190166-2)。

摘　　要：系统收集整理了云南省东南部新寨锡矿资源勘查过程中形成的85个探矿工程编录资料,建立了三维空间数据库,对具有空间属性的锡品位数据进行了基本统计分析和矿化趋势分析,并绘制了矿化等值线图和矿化趋势图。认为新寨矿区矿化富集带走向与矿化趋势等值线走向均与地层走向方向一致,显示出赋矿地层对锡的富集具有明显的控制作用;矿区南东浅部矿化富集带较北西深部矿化富集带锡矿化强度高,总体矿化趋势北西低南东高,结合地质背景推测矿区发育的向斜挠曲构造影响了锡的富集,远离向斜轴部锡品位有增强趋势。In this paper,we systematically collected and compiled 85 prospecting project catalogues formed during the exploration of tin resources in Xinzhai,southeastern Yunnan province,established a 3D spatial database,conducted the basic statistical analysis and mineralization trend analysis on tin grade data with spatial attributes,and drew mineralization contour maps and mineralization trend maps.The mineralization enrichment zone and mineralization trend contours in the Xinzhai mine area are consistent with the direction of the stratigraphy,showing that the mineralized stratigraphy has an obvious controlling effect on the tin enrichment.The tin mineralization intensity of the southeast shallow mineralization enrichment zone is higher than that of the northwest deep mineralization enrichment zone,and the overall mineralization trend is low in the northwest and high in the southeast.Combined with the geological background,it is speculated that the syncline flexural structure developed in the mining area affects the enrichment of tin,and the tin grade away from the syncline axis has an increasing trend.

关 键 词：探矿工程 锡品位 等值线图 趋势面分析 矿化规律 找矿方向 新寨锡矿 老君山成矿区 

分 类 号：P591[天文地球—地球化学] TD15[天文地球—地质学]