【摘要】 由于⁸¹Kr化学性质稳定、半衰期长且在地下水运移过程中没有额外来源的优点,近年来,成为测定古老地下水年龄（105～106a）的有效手段.国外对于⁸¹Kr的测定方法、地下水定年应用研究已较为深入,而国内应用⁸¹Kr作为水文地质学的研究尚处于起步阶段.本文通过对国内外⁸¹Kr应用于地下水测年的原理以及⁸¹Kr的测定方法进行总结,针对目前研究的问题进行探讨,并对今后放射性氪核素在水文地球化学中的研究进行展望,为国内对于⁸¹Kr的测定与在古地下水定年研究方面提供科学依据.更多还原

【Abstract】 Due to its advantages such as stable chemical property,long half-life and no extra sources during groundwater migration,⁸¹Kr has recently become an effective method to determine the age of paleogroundwater（105-106 a）. The overseas researches on determination of⁸¹Kr and groundwater dating are relatively mature,yet related domestic studies are still at the beginning stage. This paper summarizes the principles of⁸¹Kr in groundwater dating and extraction method,discusses the problems in current research,and makes prospects for the studies of radioactive Kr nuclide in hydrogeochemistry,which provides scientific basis for the researches at home.更多还原