贵州织金矿区地电化学法寻找隐伏铅锌矿的研究及找矿预测  

Prediction and prospecting for hidden lead-zinc deposit by geo-electrochemical method in Zhijin mine of Guizhou

作　　者：李智芳[1,2] 罗先熔[1,2] 宋艳伟[1,2] 张有军[1,2] 李海洋 章涛[1,2] 徐熙[1,2] 

机构地区：[1]桂林理工大学广西隐伏金属矿床勘查重点实验室,广西桂林541004 [2]桂林理工大学隐伏矿床预测研究所,广西桂林541004 [3]辽宁省地质矿产研究院,沈阳110032

出　　处：《桂林理工大学学报》2015年第4期801-808,共8页Journal of Guilin University of Technology

基　　金：中国地质调查局项目(12120113101500);广西隐伏金属矿产勘查重点实验室开放基金项目(11-031-20)

摘　　要：为了解决贵州织金铅锌矿区寻找隐伏矿体的问题,在该矿区进行了以地电化学法为主的找矿预测研究,并对地电提取的Zn、Pb、Ag、As、Sb、Hg等14种元素的数据进行因子分析。结果表明:Zn、Pb与多种元素相关系数较高,确定Zn-Pb-Ag-Cd-As-Sb-Pd为最佳找矿指示元素组合。根据地电化学测量结果(wB):以Zn>711.4×10^(-6),Pb>235.9×10^(-6)划分内带;以Zn(612.3~711.4)×10^(-6),Pb(202.4~235.9)×10^(-6)划分中带;以Zn(513.2~612.3)×10^(-6),Pb(168.9~202.4)×10^(-6)划分外带;结合元素组合的空间分布规律以及该区构造线走向,圈定具有找矿前景的异常靶区5处,其中Ⅰ-1异常靶区经钻孔验证已见到铅锌矿体。A new method is carried out in prospecting and prediction based on geo-electrochemical measurement in Zhijin mine in finding hidden lead-zinc deposit. The geo-electrochemical data of 14 elements including Zn,Pb,Ag,AS,Sb,Hg etc are analyzed by factor analysis method. The results show that the correlation between Zn-Pb and other elements is positive,and indicate the optimal element association（ Zn-Pb-Ag-Cd-As-Sb-Pd） as prospecting criteria. In order to make the information of icon distinctive,the abnormal area can be divided into high consistency area,middle consistency area and light consistency area. High consistency area can be divided by the standard of（ Zn 711. 4 × 10^（-6）,Pb 235. 9 × 10^（-6））. Middle consistency area can be divided by the grade of（ Zn 612. 3 × 10^（-6）to 711. 4 × 10^（-6）,Pb 202. 4 × 10^（-6）to 235. 9 × 10^（-6））. Light consistency area can be divided by the grade of（ Zn 513. 2 × 10^（-6）to 612. 3 × 10^（-6）,Pb 168. 9 × 10^（-6）to 202. 4 × 10^（-6））. In the distributing contrast of element association and tectonic alignment,5 advantageous ore-prospecting targets are delineated,and the lead-zinc ore body can be found in the Ⅰ-1 anomaly target after verification ore body.

关 键 词：地电化学 铅锌矿 找矿预测 织金 贵州 

分 类 号：P632[天文地球—地质矿产勘探]