胶东西岭超大型金矿床成矿特征及深部找矿前景  

Metallogenic characteristics and deep prospecting prospect of the Xiling super large gold deposit in Jiaodong Penisala

作　　者：贾飞 胡跃亮 王健策 冯涛 潘垚 郑玄 JIA Fei;HU Yueliang;WANG Jiance;FENG Tao;PAN Yao;ZHENG Xuan(Shandong Gold Geology&Mineral Exploration Co.,Ltd.,Laizhou 261400,Shandong,China)

机构地区：[1]山东黄金地质矿产勘查有限公司,山东莱州261400

出　　处：《矿产勘查》2022年第7期904-915,共12页Mineral Exploration

摘　　要：胶东是我国最大的金矿床集中区,累计探明的金资源储量约占全国的1/3。西岭金矿床位于胶东西北部,是三山岛深部的隐伏金矿床,矿体具有埋藏深、厚度大等特点。目前西岭金矿已进入勘探阶段,对矿区深部开展地质勘查工程,研究该区成矿特征及成矿模式,对后续深部找矿具有重要的启示作用。本次工作在研究前人资料的基础上,结合钻探工程揭露的地质信息,对现阶段勘探成果进行综合资料整理并创建矿区三维模型,对深部成矿进行研究分析,明确探矿方向。最新深部探矿工程显示矿体已延伸至地表以下2000 m,在矿区北东部矿体仍厚度大、品位高,延续了浅部矿体的基本特征。西岭金矿床属中低温热液充填—交代蚀变岩型金矿床,严格受三山岛主断裂构造控制,矿体多赋存于主断裂下盘,其伴随主断裂在深部的延伸并未出现尖灭之势,在深部区域仍具寻找大型金矿床的可能。Jiaodong is the largest gold deposit concentration area in China,the accumulative proven gold reserves account for about 1/3 of the country.Xiling gold deposit is located in the northwest of Jiaodong.It is a hidden gold deposit in the depth of Sanshandao.The orebody has characteristics of deep burial and large thickness.At present,Xiling gold mine has entered the exploration stage,and geological survey projects have been carried out in the depth of the mining area.The study of metallogenic characteristics and metallogenic model in this area has important enlightenment for the subsequent deep prospecting.On the basis of the previous research data,combined with the geological information revealed by drilling engineering,the present stage of the exploration results of the comprehensive data arrangement and create a three-dimensional model of the mining area,research and analysis of deep mineralization,clear prospecting direction.The latest deep prospecting project shows that the orebody has been extended to underground-2000 m,and the orebody in the northeast of the mining area is still thick and high grade,which continues the basic characteristics of shallow orebody.Xiling gold deposit belongs to middle-low temperature hydrothermal filling-metasomatism alteration rock type gold deposit,which is strictly controlled by the Sanshandao main fault structure.Most of the ore bodies occur in the footwall of the main fault.With the extension of the main fault in the deep,there is no pinch out trend,and there are still large gold deposits in the deep area.

关 键 词：西岭金矿床 地质调查工程 深部找矿 蚀变岩型 三山岛主断裂 

分 类 号：P619.25[天文地球—矿床学]