《黄金》杂志(月刊) 第39卷 总第419期
2018年10月 第10期
目次
黄金地质
  • 吉林省通化市白家街金矿区化探异常特征及找矿前景分析……冯志刚,梁延平
  • 摘 要:白家街金矿区位于通化—花甸子金及多金属成矿带南部。为实现找矿突破,指导找矿工作,以成矿地质条件为基础,分析了矿区化探异常特征,对赋矿层位提出了新的认识。研究表明:15万水系沉积物测量Au元素异常范围,包括了集安岩群荒岔沟岩组和大东岔岩组的长英质矿物区,以及老岭岩群珍珠门岩组的碳酸盐矿物区,但浓集中心位于长英质矿物区,且可能为矿致异常。11万土壤测量结果显示,碳酸盐矿物区及接触带上AuAsHg元素异常较强,但元素之间套合不好,Au元素浓集中心不明显;长英质矿物区AuAsHg元素异常较弱,但各元素之间套合较好,且明显呈北西向展布。结合区域地质资料认为,工作区长英质矿物区可能分布有工业金矿体,具有良好的找矿前景。

    Characteristicsof geochemical prospecting anomalies and analysis of prospecting perspectivesin Baijiajie Gold District in Tonghua,Jilin……Feng Zhigang,Liang Yanping

    AbstractBaijiajie GoldDistrict is located in the south of Tonghua-Huadianzi gold and polymetallicmetallogenic belt.To make prospecting breakthrough and guide prospectingwork,characteristics of geochemical prospecting anomalies in the district wereanalyzed based on metallogenic geological conditions and new understanding ofthe ore-hosting strata was put forward.The study shows: 150 000 stream sediment survey was conducted to detect the range of Auanomaly,including felsic minerals district in Huangchagou rock Formation andDadongcha rock Formation of Ji’an rock Group and carbonate minerals district inZhenzhumen rock Formation of Laoling rock Group.The concentration center sitsin the felsic minerals district and it is likely that the anomalies are due tomineralization.110 000 soilsurvey results indicate: Au,As,Hg anomalies are intense in the carbonateminerals district and its contact zone,and the fittings between the elementsare not good and Au element concentration center is not evident; while Au,As,Hganomalies in the felsic minerals district are weak and stretching NW but thefittings between the elements are good.With the help of contributing regionalgeological data,the paper takes that there could be industrial gold ore bodiesin the felsic minerals district of the working area and promising prospectingperspectives.

    Keywords:characteristicsof geochemical prospecting anomaly; prospecting perspective; metallogenicgeological condition; felsic minerals district; carbonate minerals district;Baijiajie Gold District

  • 关键词:地球化学异常特征;找矿前景;成矿地质条件;长英质矿物区;碳酸盐矿物区;白家街金矿区
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