(U-Th)/He定年技术在矿床年代学研究中的应用前景  

Application Prospect of(U-Th)/He Dating in Ore Deposit Geochronology

作　　者：张彦[1] 陈文[1] 雍拥[1] 刘新宇[1] 

机构地区：[1]中国地质科学院地质研究所,北京100037

出　　处：《黄金科学技术》2008年第4期1-3,19,共4页Gold Science and Technology

基　　金：国家自然科学基金项目(编号:40773043);国土资源大调查项目(编号:1212010761401)共同资助

摘　　要：(U-Th)/He定年技术是近年来快速发展起来的一种新的放射性同位素定年方法,已经在基础地质研究领域得到了广泛应用。在介绍(U-Th)/He定年方法技术原理的基础上,对此技术发展现状和地质应用研究成果做出简要总结,并对用该方法研究金属和非金属矿床成矿时代、研究金属矿床后期改造和矿床揭顶时代的可行性进行探讨。（ U-Th）/He dating method is a new radiogenic isotope dating method rapidly developed in recent years, which has been applied widely in the research field of basic geology. At first, we simply present the （U-Th）/He dating principle and summarize its technique development and application results in geological research. Furthermore, we discuss the feasibility of （U-Th）/He dating in determining the forming age of nonmetallic-metallic ore deposit, the succeeding alteration and unroofing age of metallic ore deposit.

关 键 词：(U-Th)/He 同位素定年 矿床年代学 

分 类 号：P597.3[天文地球—地球化学]