物化探综合找矿方法在吉林杜荒岭金矿勘查中的应用  

Application of comprehensive geophysical and geochemical methods on the exploration of Duhuangling gold deposit in Jilin

作　　者：张龙 孙剑爽 任传涛 黄伟 陈桂虎 韩科胤 朱荣利 吴国学[2] ZHANG Long;SUN Jianshuang;REN Chuantao;HUANG WeiCHEN Guihu;HAN Keyin;ZHU Rongli;WU Guoxue(Mudanjiang Natural Resources Survey Center,China Geological Survey,Mudanjiang 157021,Heilongjiang,China;College of Earth Sciences,Jilin University,Changchun 130061,Jilin,China)

机构地区：[1]中国地质调查局牡丹江自然资源综合调查中心,黑龙江牡丹江157021 [2]吉林大学地球科学学院,吉林长春130061

出　　处：《矿产与地质》2023年第2期309-316,共8页Mineral Resources and Geology

基　　金：中国地质调查局项目“吉黑东部地区金矿资源潜力动态评价”(编号:DD20230373)资助。

摘　　要：吉林省汪清县杜荒岭金矿位于晚三叠世石英闪长岩及其与地层接触带,为浅成中温岩浆热液型金矿床,石英闪长岩体中较高的金元素丰度为成矿提供了必要的物质来源基础。为查明成矿规律,明确找矿方向,通过梳理、筛选1∶10万水系沉积物化探成果,结合成矿地质背景,在杜荒岭金矿周边应用土壤地球化学和激电中梯测量等综合物化探找矿方法,确定了以金矿为主的找矿思路。在物化探异常对应较好地区,择优开展槽探和钻探工程验证,发现了新的金矿化体,取得了较好的找矿效果。从而说明综合物化探找矿方法是可行、有效的,对于区域上寻找同类型金矿床具有很好的借鉴意义。Duhuangling gold deposit,located in the Late Triassic quartz diorite and its contact zone with the strata,is an epithermal magmatic type deposit.The high abundance of Au element in the quartz diorite body provides the necessary material basis for mineralization.In order to find out the metallogenic regularity and the prospecting direction,the physical and chemical prospecting methods,such as soil geochemistry and IP medium gradient survey,are comprehensively applied in Duhuangling gold deposit with the combination of 1:100000 stream sedimentary geochemical survey and geological background of mineralization condition,the ore exploration direction focuses on gold deposit in the mining area.New gold mineralized bodies have been found in the area where the geophysical and geochemical anomalies correspond well.A good prospecting effect has been obtained.The exploration result indicates that it is feasible and effective to use the comprehensive geophysical and geochemical prospecting methods to search for the same type gold deposit in the region.

关 键 词：杜荒岭金矿 石英闪长岩 地球化学 元素异常 激电中梯 

分 类 号：P631[天文地球—地质矿产勘探] P632[天文地球—地质学]