It is discovered there are many moraines on Mengshan Mountain,which is important for the Quaternary glacial study in Eastern China.In this paper,we sampled and dated the ages of different moraines with the Optically Stimulated Luminescence (OSL) dating method.We obtained the glacial ages of 8.2 ka BP and 18.2 ～22.2 ka BP for the first time in the middle and low mountainous areas of eastern China.According to the results,two credible glacial periods called Lanma and Mengshan are determined.Quaternary glaciations theory in Eastern China established by Lee J S is affirmed and developed.%针对蒙山发育的第四纪冰川遗迹,采用光释光(Optic Stimulated Luminescence)的测年方法,对遗迹较新的冰碛垄进行了采样与测试,首次在我国东部中低山区获得了8.2ka BP与18.2 ～ 22.2ka BP两个时间段的冰期年龄值,对应于8.2ka BP早全新世全球冷事件与末次冰盛期.根据冰碛垄的特征与测定年龄值,结合我国以往其他地区冰期的对比研究,在蒙山建立了拦马冰期与蒙山冰期.本项研究,确认并发展了李四光关于我国东部第四纪冰川理论.
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