辽宁阜新排山楼金矿床深穿透地球化学找矿方法的应用研究  

Application of deep penetration geochemical prospecting methodin Paishanlou gold deposit,Fuxin,Liaoning

作　　者：张凯伦 温守钦[1,2] 汪徽 张赛杰 Zhang Kailun;Wen Shouqin;Wang Hui;Zhang Saijie(School of Resources and Civil Engineering,Northeastern University;Key Laboratory of Safety Mining in Deep Metal Mines,Ministry of Education)

机构地区：[1]东北大学资源与土木工程学院 [2]深部金属矿山安全开采教育部重点实验室

出　　处：《黄金》2023年第9期111-116,共6页Gold

基　　金：国家重点研发计划项目(2016YFC0801603)。

摘　　要：排山楼金矿床位于辽宁阜新,是目前中国发现最大的受韧性剪切带控制的糜棱岩型金矿床之一。矿体赋存于太古宇建平群蚀变糜棱岩破碎带内,矿石蚀变强烈,品位偏低。目前,该矿床经多年开采已步入危机矿山行列,迫切需要开展接替资源勘查工作,增加矿石储量,延长服务年限。应用深穿透地球化学找矿方法对排山楼金矿床进行成矿预测研究,主要包括有机烃类气体测量、吸附相态汞测量和氡气测量地球化学方法。通过布设2条剖面,采集土壤地球化学样品73件,每件样品分析测试吸附相态汞及7种有机烃类气体组分,并对36勘探线开展氡气测量研究。研究结果表明,甲烷、乙烷、丙烯、正丁烷和吸附相态汞剖面异常与矿体均有较好的空间对应关系,甲烷、乙烷在矿体上方呈单峰式剖面异常;丙烯、正丁烷和吸附相态汞为多峰式异常。最后,通过对烃、汞剖面异常特征的综合对比分析,圈定出4处成矿靶区。Panshanlou gold deposit is located in Fuxin,western Liaoning,and is one of the largest mylonite-type gold deposits in China that is currently known to be controlled by ductile shear zones.The mineralization in the Panshanlou gold deposit is found within the ancient Yujianping Group metamorphic mylonite fracture zone.The ore is heavily altered,but has a relatively low grade.Currently,the mine has been in a state of crisis due to years of mining,making it imperative to conduct exploration for replacement resources in order to increase ore reserves and extend the mine's service life.Panshanlou gold deposit has been studied using deep penetration geochemical exploration methods for mineralization prediction.The main methods employed include analysis of hydrocarbon gases,adsorbed phased mercury,and radon gas in different geological settings.2 profiles were established,and a total of 73 soil geochemical samples were collected.Each sample was analyzed for adsorbed phased mercury and 7 organic hydrocarbon gas components.Additionally,radon gas measurements were conducted along 36 exploration lines.The research results indicate that methane,ethane,propylene,n-butane,and adsorbed mercury anomalies in the profiles show a good spatial correlation with the ore bodies.Methane and ethane exhibit single-peak anomalies above the ore bodies,while propylene,n-butane,and adsorbed phased mercury show multi-peak anomalies.Lastly,through comprehensive analysis and comparison of the hydrocarbon and mercury anomaly characteristics,4 prospective mineralization target areas were delineated.

关 键 词：排山楼金矿床 深穿透地球化学 有机烃类气体测量 吸附相态汞测量 氡气测量 

分 类 号：TD15[矿业工程—矿山地质测量] P618.51[天文地球—矿床学]