粤北英德金门花岗闪长岩SHRIMP锆石U-Pb定年及其与成矿的关系  

SHRIMP U-Pb dating of the Jinmen granodiorite of the northern Guangdong and its relations to mineralization

作　　者：李伟 卢友月[2,3] 路远发 付建明[2,3] 程顺波[2,3] 秦拯纬 马丽艳[2,3] LI Wei;LU Youyue;LU Yuanfa;FU Jianming;CHENG Shunbo;QIN Zhengwei;MA Liyan(College of Earth Environment and Water Resources,Yangtze University,Wuhan 430100,Hubei,China;Wuhan Centre of China Geological Survey,CGS,Wuhan 430205,Hubei,China;Institute of Granitic Diagenesis and Metallogeny,CGS,Wuhan 430205,Hubei,China)

机构地区：[1]长江大学资源与环境学院,湖北武汉430100 [2]中国地质调查局武汉地质调查中心,湖北武汉430205 [3]中国地质调查局花岗岩成岩成矿地质研究中心,湖北武汉430205

出　　处：《矿产与地质》2018年第5期861-867,共7页Mineral Resources and Geology

基　　金：中国地质调查局地质矿产调查评价专项项目"南岭成矿带中西段地质矿产调查"(121201009000150002);国家重点研发计划"深地资源勘查开采"重点专项"华南陆内成矿系统的深部过程与物质响应"(2016YFC0600205)共同资助

摘　　要：金门岩体位于广东省英德市东华镇,岩性主要为花岗闪长岩,与岩体有关的矿床有金门铁铜矿床、周屋铜钼矿床等。花岗闪长岩SHRIMP锆石U-Pb年代学研究表明,其成岩年龄为156Ma±2Ma(95%置信度,N=8,MSWD=1.08),为燕山早期侵位。金门花岗闪长岩与钦杭成矿带中侏罗世与斑岩–矽卡岩–热液脉状铜金多金属矿床有关的钙碱性花岗闪长岩类可能具有相同的成岩成矿背景,加强其与区内成矿关系的研究,对进一步找矿具有重要意义。The Jinmen granodiorite intrusion is located in the Donghua town,Yingde city,Guangdong province.The lithology is mainly granodiorite,and the deposits related to the rock pluton include the Jinmen iron-copper deposit and the Zhouwu copper-molybdenum deposit.Zircon SHRIMP U-Pb age of granodiorite is 156Ma±2Ma(N=8,MSWD=1.08),which suggests an early Yanshanian emplacement.The Jinmen granodiorite may have the same background in diagenesis and mineralization with those granodiorites related to Mid-Jurassic porphyry-skarn-vein Cu polymetallic deposits in Qinhang(Qinzhou bay to Hangzhou bay)metallogenic belt.To strengthen the study on its relationship with regional mineralization is of great significance for further prospecting in the area.

关 键 词：SHRIMP锆石U-PB年龄 花岗闪长岩 金门岩体 英德 粤北 

分 类 号：P588.122[天文地球—岩石学]