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利用原地生成的宇宙核素确定地表岩石的暴露年代是近十余年发展起来的新型测年方法。本文简述了该测年方法的基本原理、测年的范围及精度,测年样品的采集应注意的问题,并重点介绍了该测年方法在地学中的应用,其中包括:①在冰川活动事件中的应用;②在地貌过程中的应用;③在火山活动中的应用;④在活动断裂中的应用;⑤在陨石撞击事件及洪水泥石流事件中的应用。
The use of in situ generated cosmic nuclides to determine the age of exposure of surface rocks is a new dating method developed over the last ten years. This paper outlines the basic principles of the dating method, the scope and accuracy of the dating, the problems that should be paid attention to in the dating of samples, and focuses on the application of the dating method in geosciences, including: The application in the event; ② the application in the geomorphological process; ③ the application in the volcanic activity; ④ the application in the active fracture; ⑤ the application in the meteorite impact event and the flood debris flow event.