摘要
钦杭成矿带是我国一条重要的金属矿产成矿带,近年来随着朱溪和大湖塘两个世界级钨矿床的探明,更是引起了广泛关注。在综合分析已有资料的基础上,结合最新找矿勘查和研究成果,初步总结了钦杭成矿带东段钨矿成矿规律。认为区内钨矿床可划分为石英脉型、接触交代型、蚀变花岗岩(云英岩)型、斑岩型和复合型5种类型。在空间展布上具有区-带-田结构,在成岩-成矿时间上以燕山期为主(120~162Ma),印支期(~225Ma)次之,壳源重熔(S型)花岗岩与钨成矿关系尤为密切,次为I型花岗质岩浆。钨主要来源于岩浆岩,少部分亦来源于地层。完善了钦杭成矿带东段钨矿成矿模式,并分析了区内找矿潜力。
The Qinzhou-Hangzhou metallogenic belt is an important metallogenic belt in China. In recent years,much attention has been given to the Qinzhou-Hangzhou metallogenic belt for the discovery of two world-class Zhuxi and Dahutang tungsten deposits. The combination of the existing data and latest results of research,the present paper focuses on the mineralization in the eastern part of the Qinzhou-Hangzhou metallogenic belt. The tungsten deposits in the study area may be classified into five types: quartz vein type,contact metasomatic type,altered granite (greisen) type,porphyry type and composite type. These tungsten deposits are characterized by the distribution of ore district-ore belt-ore field patterns. The diagenesis-mineralization ages are assigned primarily to the Yanshanian (120 to 162 Ma) and subordinately to the Indosinian (ca. 225 Ma). The tungsten mineralization has the affinity to the crust-derived remelted (S-type) granitic magmas,and also to the I-type granitic magmas,and the element tungsten is derived mainly from the magmatic rocks and basement strata composed of the marine volcanic-sedimentary formations. The eastern part of the Qinzhou-Hangzhou metallogenic belt is interpreted to have the great potential of the exploration of the tungsten deposits.
作者
付文树
欧阳永棚
饶建锋
陈祺
章敬若
肖凡
张雪辉
FU Wenshu;OUYANG Yongpeng;RAO Jianfeng;CHEN Qi;ZHANG Jingruo;XIAO Fan;Zhang Xuehui(No.912 Geological Prospecting Party,Jiangxi Bureau of Geology and Mineral Resources,Yingtan 335001,Jiangxi,China;Nanjing Center,China Geological Survey,Nanjing 210016,Jiangsu,China)
出处
《沉积与特提斯地质》
CAS
CSCD
2019年第2期35-44,共10页
Sedimentary Geology and Tethyan Geology
基金
中国地质调查局《中国矿产地质与成矿规律综合集成和服务》(DD20160346)
《中国地质构造区划综合研究与区域地质调查综合集成》(1212010911022)
《江西塔前-大游山地区矿产地质调查》(12120113065300)
江西省地质矿产勘查开发局《江西朱溪矿区深部及外围控矿构造研究》(赣地矿字[2017]78号)
国土资源部公益性科研《江西朱溪铜钨矿成矿规律与预测研究》(201411035)
钦杭成矿带武宁-平江地区钨铜多金属矿地质调查(DD20190153)
关键词
钦杭成矿带东段
钨矿
成矿规律
区域找矿潜力
eastern part of the Qinzhou-Hangzhou metallogenic belt
tungsten deposit
mineralization
exploration potential
