《黄金》杂志(月刊) 第39卷 总第415期
2018年07月 第07期
目次
黄金地质
  • 黑龙江省东宁县金厂金矿成矿作用分析及找矿思考……王广南
  • 摘 要:金厂金矿床为特大型金矿床,矿化类型包括隐爆角砾岩筒型、裂隙充填型、似层状微细脉浸染型和蚀变岩型,且以隐爆角砾岩筒型和裂隙充填型矿化为主。矿区主要存在印支晚期、燕山晚期2期岩浆活动。对矿床基本特征和成矿作用的分析认为,燕山晚期花岗斑岩体与金矿体在空间上紧密相伴,形成时间上较为一致,发育有成矿流体出溶的直接证据,提供了成矿的物质、流体和热动力条件,是成矿的地质体;大面积发育的印支晚期闪长质和花岗质岩浆岩只是赋矿围岩,闪长玢岩体主要与铅锌矿化有关;成矿潜力尚需深入研究,区域隆升可能导致矿床的风化剥蚀,深部找矿前景值得深入思考;下步找矿应着重考虑花岗斑岩体发育地带、存在东西向构造带、存在多金属硫化物矿化和石英-黄铁矿脉型矿化叠加等因素。

    Goldmineralization analysis and prospecting considerations of Jinchang Gold Depositin Dongning County,Heilongjiang Province……Wang Guangnan

    AbstractJinchang Gold Deposit is a super large-scale gold deposit.Itsmineralization type includes crypto-explosive breccia type,fissure fillingtype,layer-like micro-fine grain dissemination type and alterationtype,dominated by crypto-explosive breccia type and fissure filling typemineralization.2 phase magmatic activities namely the late Indo-Chinese andlate Yanshanian existed in the deposit.Analysis of the basic features andmineralization of the deposit considers that granitic porphyry in lateYanshanian is closely related with gold-copper ore body in space and theirformation period is close; there is direct evidence of ore-forming fluidsexsolution,which provides ore-forming materials,fluids and thermodynamicconditions,indicating that the granitic porphyry in late Yanshanian is the ore-forminggeologic body; the late Indo-Chinese dioritic and granitic magmatite developingin large areas are merely ore-hosting wall rocks and the dioritic porphyrite ismainly related with lead and zinc mineralization; the metallogenic potentialsstill needs further research,the regional uplift can lead to weathering anddenudation of the deposit and the deep prospecting prospects need furtherconsiderations; next-step prospecting should focus on granitic porphyrydevelopment zones,EW tectonic belt,polymetallic sulfide mineralization andquartz-pyrite vein type mineralization superposition.

    Keywords:geological feature; mineralization; ore-controlling factor; crypto-explosivebreccia type mineralization; fissure filling mineralization; Jinchang GoldDeposit

  • 关键词:地质特征;成矿作用;控矿因素;角砾岩筒型矿化;裂隙充填型矿化;金厂金矿床
黄 金 杂 志 社 地址:吉林省长春市南湖大路6760号 邮编:130012
电话:0431-85529838/0431-89243511(广告部)/0431-89243833(编辑部)
传真:0431-85511548转3235 电子信箱:journal@ccgri.com ggb3068@126.com(广告部)