Abstract: The development of U-Th/He dating method is reviewed, and the principle, the analysis progress and the long α-stopping distance correction of this method are briefly presented in this paper. Then, the achievement on He diffusion in apatite and its mathematic modeling and the application of U-Th/He dating method to palaeogeomorphy, rock uplift, and basin thermal evolution is summarized. Finally, we evaluate the advantage and disadvantage of the U-Th/He method. As a conclusion, we think that this method has good prospects as well as necessity to be improved.

Key words: U-Th/He, Long alpha-stopping distance, Diffusion

摘要： 回顾了U-Th/He测年方法的发展过程,简要介绍了该方法测年的原理、分析流程和长α-粒子停止距离校正。然后介绍了近年来在磷灰石He扩散性研究及数值模拟方面取得的一些成果和磷灰石U-Th/He热年代计在研究古地貌、岩体构造抬升、盆地热历史演化方面的应用。最后分析了U-Th/He测年方法的优、缺点,说明这一方法既存在广阔的应用前景,又有待于进一步完善、提高。

关键词: U-Th/He, 长α-停止距离, 扩散