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宇宙成因核素测年技术经过近几十年的发展,在采样程序、样品预处理与实验室分析以及理论等方面都获得了进一步的完善,在第四纪冰川测年中有着材料易取、测年范围宽泛与理论基础成熟等优点,已成为目前第四纪冰川测年的主要手段之一.宇宙成因核素测年的随机误差与系统误差分别为8%与10%,但只要根据一定的采样原则,就可以使得到的最老的漂砾年龄≥冰碛年龄的90%(95%的可能性).各纬度带测年数据与冰芯记录的对比中发现,北半球高纬度和南北半球低纬度地区与冰芯记录的相关性较高,而中纬度地区有一定的相关性,但不强.数据分布的纬度对比中发现,两半球的低纬度地区之间,以及中纬度之间有较好的对应关系,并且最大峰值出现的时间也较一致,但高、中与低纬度之间却存在明显的差异.
After decades of development, cosmic dating technique of nuclear origin has been further improved in sampling procedures, sample preprocessing and laboratory analysis, as well as in theory. In the Quaternary glacier dating, The wide range of dating and theoretical basis have become one of the main methods of dating the Quaternary glaciers.The random errors and systematic errors in the dating of cosmic genetic nuclides are 8% and 10%, respectively. However, , The oldest boulder age attained is 90% (95% probability) of the age of the moraine.Comparisons between the dating data of the latitudes and the ice core records show that the high latitudes of the northern hemisphere and south Low latitudes in the northern hemisphere have a higher correlation with ice core records, while latitudes in the middle latitudes are somewhat correlated, but not strong. Latitude comparison of data distribution shows that between low latitudes of the two hemispheres and between mid latitudes There is a good correspondence between them, and the peak time appears more consistent, but there are obvious differences between high, middle and low latitudes.