湖北丰山矿田燕山期岩浆岩与铜金成矿作用研究  

Yanshanian magmatic rocks and copper-gold metallogenesis in Fengshan ore field,Hubei

作　　者：王刚 李风豪 施玉娇 杨卯 WANG Gang;LI Fenghao;SHI Yujiao;YANG Mao(Daye Nonferrous Metals Group Holdings Co.,Ltd.,Huangshi 435005,Hubei,China;Hubei Nonferrous Metal Resources Development and Comprehensive Utilization Engineering Technology Research Center,Huangshi 435005,Hubei,China;Faculty of Land and Resources Engineering,Kunming University of Science and Technology,Kunming 650096,Yunnan,China;China Nonferrous Metals(Guilin)Geology and Mining Co.,Ltd.,Guilin 541004,Guangxi,China)

机构地区：[1]大冶有色金属集团控股有限公司,湖北黄石435005 [2]湖北省有色金属资源开发与综合利用工程技术研究中心,湖北黄石435005 [3]昆明理工大学国土资源工程学院,云南昆明650096 [4]中国有色桂林矿产地质研究院有限公司,广西桂林541004

出　　处：《矿产与地质》2022年第1期14-24,共11页Mineral Resources and Geology

摘　　要：丰山矿田位于鄂东南铁铜金多金属成矿区西段九瑞铜金矿集区内,该区发育有与燕山期侵入岩体有关的大规模铜金矿化,如早期发现的丰山铜(金)矿、鸡笼山金铜矿、李家湾铜金矿、国音岩金矿,近期在李家湾和鸡笼山之间新发现中低温热液脉型金矿——曹家山金矿,新的找矿发现丰富了丰山矿田的矿床类型。为进一步探究燕山期侵入岩体与区内铜金矿化之间的关系,以区域地质概况为研究基础,结合矿田地质特征,分析矿田内典型矿床的地质特征、控矿因素及成矿规律,厘定燕山期侵入岩体与区内铜金矿化的成因关系和时空结构联系。建立了以燕山期侵入岩体为中心,从内向外依次为斑岩型→矽卡岩型→中低温热液脉型→微细浸染型矿化特征和成矿模式,丰富了区域内燕山期侵入岩体与铜金矿化关系的成矿理论研究,对矿田深部勘查及外围找矿预测具有理论指导和实践意义。The Fengshan ore field is located in the Jiurui copper-gold ore concentration area in the west section of the Fe-Cu-Au polymetallic ore-forming area in Southeast Hubei Province.There is developed for a large scale copper-gold mineralization related to Yanshanian intrusive rocks in this area,for example,the early discovery of Fengsandong copper(molybdenum)deposit,Jilongshan gold-copper deposit and Lijiawan copper-gold deposit,the recent discovery of a new mesothermal hydrothermal alteration vein type gold deposit between Lijiawan deposit and Jilongshan deposit-Caojiashan gold deposit.In order to further explore the relationship between the Yanshanian period intrusive rock mass and the copper-gold mineralization in the area,this paper takes the regional geology survey as the research basis,and combines the geological characteristics of the ore field,based on the analysis of geological characteristics,ore-controlling factor and metallogenic regularity of the typical deposits in the ore field,the genetic relationship and space-time structure between the Yanshanian period intrusive rock mass and the copper-gold mineralization in the area is determined.The metallogenic model of the intrusive rock body in the Yanshanian period is established,which is in turn porphyry type→skarn type→meso-low temperature hydrothermal vein type→micro-disseminated type.The study enriches the metallogenic theory of the relationship between Yanshanian period intrusive rock body and copper-gold mineralization in the region.There is a theoretical guidance and practical significance for the deep exploration and peripheral prospecting in the ore field.

关 键 词：丰山铜(金)矿 控矿因素 成矿规律 斑岩型 矽卡岩型 中低温热液脉型 

分 类 号：P611[天文地球—矿床学]