吉林金厂沟外围金矿床地质特征及找矿标志  

Geological characteristics and prospecting criteria of the gold deposit in the periphery of Jinchanggou,Jilin Province

作　　者：陈腾 杜祥扩 刘铁成[3] 贾润幸[3] 张毅 CHEN Teng;DU Xiangkuo;LIU Tiecheng;JIA Runxing;ZHANG Yi(Sinotech Minerals Exploration Co.,Ltd.,Beijing 100012,China;Ongniud Banner Shengshi Lotus Mining Co.,Ltd.,Chifeng 024500,Inner Mongolia,China;China Non-ferrous Metals Resource Geological Survey,Beijing 100012,China)

机构地区：[1]中色地科矿产勘查股份有限公司,北京100012 [2]翁牛特旗盛世莲花矿业有限责任公司,内蒙古赤峰024500 [3]有色金属矿产地质调查中心,北京100012

出　　处：《矿产勘查》2024年第S2期392-399,共8页Mineral Exploration

基　　金：中国建筑材料工业地质勘查中心找矿专项计划(建地矿[2020]07号)资助。

摘　　要：吉林金厂沟金矿床大地构造位于中朝准地台区上二叠统柳河盆地西南部,区内发育有小型火山角砾岩型金矿床。在系统收集前人资料及野外地质勘查工作基础上,本文对该矿床围岩蚀变、矿体特征及矿石特征进行梳理,研究表明金矿体主要赋存在流纹质凝灰角砾岩和英安质凝灰角砾岩中,矿体受火山角砾岩机构和环状、放射状构造及蚀变体控制。通过对矿区物化探研究结合前人资料认为该矿床控矿模式是角砾、构造、蚀变矿化“三位一体”控矿,矿床成因类型应属“多期多阶段火山期后热液矿床”,深部及外围找矿潜力较大。The Jinchanggou gold deposit in Jilin is located in the southwest of the Upper Permian Liuhe Basin in the Mid-Korean peneplatform area,where a small volcanic breccia type gold deposit is developed.On the basis of systematic collection of previous data and field geological exploration work,this paper has sorted out the sur-rounding rock alteration,ore body characteristics and ore characteristics of the deposit.The research shows that the gold ore body mainly exists in rhyolitic tubreccia and rhyolitic breccia tubreccia,and the ore body is controlled by volcanic breccia mechanism,ring and radial structure and corrosion variation.Based on the geophysical and chemical exploration and previous data,it is considered that the ore-controlling mode of the deposit is"trinity"of breccia,structure and alteration mineralization,and the genetic type of the deposit belongs to"multi-stage and multi-stage post-volcanic hydrothermal deposit",with great prospecting potential in deep and peripheral areas.

关 键 词：金矿床 地质特征 金厂沟外围 矿床成因 找矿标志 

分 类 号：P56[天文地球—构造地质学]