皖南解带山铅锌矿成矿岩体锆石U-Pb年代学研究及地质意义  

Zircon U-Pb Chronology and Geological Significance of the Ore-forming Intrusive Rocks in Jiedaishan Lead-zinc Deposit,in South Anhui Province

作　　者：白茹玉[1,2] 黄永海[1] BAI Ruyu;HUANG Yonghai(Geological Survey of Anhui Province(Anhui institute of Geological Sciences),Hefei 230001,China;School of Resources and Environmental Engineering,Hefei University of Technology,Hefei 230009,China)

机构地区：[1]安徽省地质调查院(安徽省地质科学研究所),安徽合肥230001 [2]合肥工业大学资源与环境工程学院,安徽合肥230091

出　　处：《四川有色金属》2024年第3期55-58,共4页Sichuan Nonferrous Metals

基　　金：安徽省公益性地质工作项目(2021-g-2-11)资助。

摘　　要：解带山铅锌矿位于皖南铅锌成矿区,本文对解带山花岗闪长斑岩含矿岩体开展了岩相学和锆石U-Pb年代学研究,获得锆石U-Pb年龄为136.4±1.4 Ma,形成于早白垩世,属燕山晚期岩浆活动产物,花岗闪长斑岩相对较低的结晶温度和相对中等的氧逸度有利于铅锌沉淀成矿。The Jiedaishan Pb-Zn deposit is located in the Pb-Zn metallogenic area of southern Anhui Province.In this paper,petrography and zircon U-Pb chronology have been carried out on the Jiedaishan granodiorite porphyry ore-bearing intrusive rocks.The zircon U-Pb age is 136.4±1.4 Ma,formed in the Early Cretaceous,and is the product of late Yanshan magmatic activity.The relatively low crystallization temperature and relatively moderate oxygen fugacity of granodiorite porphyry are conducive to lead-zinc precipitation mineralization.

关 键 词：皖南 铅锌矿 成矿岩体 年代学 

分 类 号：P597.3[天文地球—地球化学] P587[天文地球—地质学]