释光断代的可靠性分析

The reliability analysis about luminescence dating method

释光断代是一种测年方法,利用的主要是石英等矿物晶体对放射性辐射的次级响应规律。该方法不受其他因素干扰,断代时间基本涵盖第四纪范围,而且适用样品广泛,在细颗粒沉积物测年方面方法独特,在一定程度上弥补了测年工作中的某些空缺,受到第四纪、考古、地震、水文、环境演变等专业研究人员的重视。不过,其断代数据时有偏差,引起应用人员的困惑。本文试图对此进行一些分析和讨论。

The Luminescence Dating is a method that depends on the secondary respond rules of quartz and others mineral crystals with radiation. It is not be interfered by other factors. For instance, this interference could be from physical changes, chemical changes and others. The times of dating includes all the Quaternary Period. And a range of applicable samples are widely. Luminescence Dating is an especial method on the sediments dating of granule. For a certain extent this method makes up some defects of dating. At same time the Luminescence Dating is also regarded by some relevant professional research workers in the quaternary period, archaeology, seismology, hydrogeology and environment change. However dating data sometime deviate from the real age of sample, so it causes some confusion with people who want to apply these data. This paper would like to attempt analyzing and discussing some relevant problems about this dating method.