摘要
辽宁省青城子矿集区具有明显的矿床分带性,本溪县刘家金矿是青城子矿集区北部的重要金矿床,它与周边典型矿床具有相同的区域成矿地质背景和化探异常,对它的研究有利于矿集区北部金矿的找矿突破。本文从矿区的地层、构造、岩浆岩、化探异常特征入手,指出多期次活动的断裂构造发育于盖县组地层中,与已有中低温化探异常吻合。着重分析了矿体特征、矿石质量、围岩蚀变等矿床地质特征,将成矿作用划分为细粒石英-绢云母化阶段、粗粒石英-多金属硫化物阶段和碳酸盐阶段,并对成矿机理、矿床成因及控矿因素进行了初步研究,认为多期次活动的断裂构造是导矿构造也是储矿构造,硅化、黄铁矿化与金成矿关系密切。总结了矿区找矿标志,指明了下一步找矿的有利靶区和勘查矿种。
The Qingchengzi ore concentration area in Liaoning Province has obvious deposit zoning. The Liujia gold deposit in Benxi County is an important gold deposit in the northern part of the Qingchengzi ore concentration area, the research on it is beneficial to the prospecting breakthrough of the northern gold deposit in the ore concentration area. It has the same regional mineralization geological background and geochemical anomaly as the surrounding typical deposits. This article starts with the stratum, structure, magmatic rock, and geochemical anomaly characteristics of the mining area, focuses on the analysis of the ore body characteristics, ore quality, wall rock alteration and other geological characteristics of the deposit, divides the mineralization into fine-grained quartz-sericitization stage, coarse-grained quartz-polymetallic sulfide stage and carbonation stage, preliminary researches on ore-forming mechanism, ore deposit genesis and ore-controlling factors. It is considered that the fault structure with multiple periods of activity is a ore-conducting structure and a ore-storing structure, silicification, pyrite mineralization and gold mineralization are closely related. Finally, the prospecting signs of the mining area are summarized, and the favorable target areas and prospecting minerals for prospecting in the next step are pointed out.
作者
吴志国
王岩
史鸿枭
卢佳鑫
葛鹏飞
杨森
WU Zhiguo;WANG Yan;SHI Hongxiao;LU Jiaxin;GE Pengfei;YANG Sen(Liaoning Institute of Geology and Mineral Resource Co.,Ltd.,Shenyang 113002,Liaoning,China;The Tenth Geological Brigade Co.,Ltd.of Liaoning Province,Fushun 113007,Liaoning,China)
出处
《矿产勘查》
2022年第2期238-246,共9页
Mineral Exploration
关键词
刘家金矿
地质特征
找矿方向
辽宁
Liujia gold deposit
geological characteristics
prospecting direction
Liaoning
