江苏仑山金矿区地电化学提取异常特征及成矿远景  

Characteristics of geoelectric extraction anomaly and metallogenic prospect in Lunshan Gold District,Jiangsu Province

作　　者：闫伟 Yan Wei(Liaoning Provincial Geological Resources Research Institute Co.,Ltd.)

机构地区：[1]辽宁省地质矿产研究院有限责任公司

出　　处：《黄金》2021年第6期20-25,共6页Gold

基　　金：国际科技合作项目(2007DFA20910);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：为解决江苏仑山金矿区寻找深部隐伏矿体的问题,对矿区地电化学提取元素特征参数进行统计并讨论,通过计算各元素的背景值确定异常划分标准,圈定了Au、Ag、As、Sb、Hg、Cu、Pb、Zn等8种元素异常。聚类分析和因子分析表明,矿区内Au成矿与多金属硫化物关系密切,多以硫络合物形式迁移、沉淀,Ag、Cu元素异常可作为间接找矿标志。以地电化学提取Au元素异常为主要依据,综合考虑Au与其他元素异常套合情况,并结合地质特征,圈定了3处成矿远景区,1号成矿远景区找矿潜力较大,具有发现隐伏矿体的可能,可作为重点找矿区域;2号、3号成矿远景区具有一定的找矿潜力。In order to solve the problem of searching for deep concealed ore bodies in Lunshan Gold District,Jiangsu Province,the characteristics and parameters of geoelectric extraction elements in the mining area are counted and discussed.The anomaly classification criteria are determined by calculating the background value of each element,and 8 element anomalies including Au,Ag,As,Sb,Hg,Cu,Pb and Zn are delineated.Cluster analysis and factor analysis show that the mineralization of Au in the mining area is closely related to polymetallic sulphide and mainly migrates and precipitates in the form of sulfur complexes,and Ag,Cu element anomalies can be used as indirect prospecting indicators.Taking the Au element anomaly extracted by geoelectric txtraction as the main basis,based on comprehensive consideration of the fittings status of Au and other element anomalies and the geological features,3 mineralization prospects were delineated,No.1 prospect has greater prospecting potential of discovering concealed ore bodies and can be taken as the important prospecting area;No.2 and No.3 prospects have certain prospecting potential.

关 键 词：地电化学提取 异常特征 隐伏矿体 成矿远景 仑山金矿区 

分 类 号：TD11[矿业工程—矿山地质测量] P618.51[天文地球—矿床学]