基于因子分析的云南都龙锡锌多金属矿床矿化规律研究  

A Factor Analysis Based Study on Mineralization Rugularity of the Dulong Sn-Zn Polymetallic Deposit in Yunnan Province

作　　者：邹超 贾福聚[1] 燕永锋[1] 念红良 崔东豪 秦德先[1] 高建国[1] 孙柱兵 李凌霄 杨卓 ZOU Chao;JIA Fu-ju;YAN Yong-feng;NIAN Hong-liang;CUI Dong-hao;QIN De-xian;GAO Jian-guo;SUN Zhu-bing;LI Ling-xiao;YANG Zhuo(College of Land Resources and Engineering,Kunming University of Science and Technology,Kunming 650093,China;No.317 Geological Party of Yunnan Nonferrous Geological Bureau,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317队,云南曲靖655000

出　　处：《矿物岩石地球化学通报》2019年第6期1170-1176,共7页Bulletin of Mineralogy, Petrology and Geochemistry

基　　金：国家重点研发计划项目(2017YFC0602500);中国地质调查局项目(121201004000160901-37)。

摘　　要：为了解都龙锡锌多金属矿床的矿化规律,以矿区勘查形成的570组主、微量元素分析数据为研究对象,在样品三维空间定位的基础上,进行了元素因子分析和空间分带研究。因子分析结果显示,F1因子高载荷元素为Ag、As和Cu,为中-低温前缘晕元素组合;F2因子高载荷元素为Zn、Cd和S,为中温矿上晕元素组合;F3因子高载荷元素为Sn、Ga和In,为高温矿上晕元素组合;F4由元素Ge单独组成,Cd、Ga和In也有一定载荷,为稀散金属元素组合。据矿体走向因子得分结果推测,都龙矿区成矿元素分带的关键因素可能是在矿区中部侵位的晚期花岗斑岩脉。矿体垂向因子得分结果显示,F1出现了多个高值,显示多期成矿作用的叠加。空间上稀散金属具有随主量金属元素Zn、Sn共同沉淀富集的特征,对稀散金属的综合回收利用十分有利。In order to understand mineralization regularity of the Dulong Sn-Zn polymetallic deposit,data of major and trace elements for 570 sets of samples collected during the mineral exploration have been applied to undertake factor analysis and to study spatial zoning on the basis of the 3D spatial positioning of the samples in this paper.The results of factor analysis show that the F1 factor high loading elements are Ag,As,and Cu,which belong to a combination of medium-low temperature frontal halo elements.The F2 factor high loading elements are Zn,Cd,and S,which belong to a combination of medium temperature super-ore halo elements.The F3 factor high loading elements are Sn,Ga,and In,which belong to a combination of high temperature super-ore halo elements.The F4 factor high loading element is mainly represented by Ge,with minor loading elements of Cd,Ga and In,which belong to a combination of rare metal elements.Based on scoring results of strike factors of ore bodies,it is speculated that the key factor causing the zoning of metallogenic elements in the Dulong deposit could be the late-stage granite porphyry dyke emplaced in the middle part of the deposit.The ore body vertical factor score results show that F1 has multiple high values,indicating the superposition of multi-stage mineralization.The rare metals have spatial characteristics of co-precipitation and enrichment with main metal elements of Zn and Sn.This is very beneficial for the comprehensive recycling of rare metals.

关 键 词：稀散金属 因子分析 矿化规律 都龙锡锌多金属矿床 

分 类 号：P612[天文地球—矿床学]