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应用热电离质谱仪 (TIMS)技术 ,测定了南京汤山 2个溶洞数层钙板和石笋的年龄 ,其年代分布范围跨越了距今 5 0 0～ 2 0ka.根据这些洞穴碳酸盐的年代及其与堆积地层的关系 ,建立了该处第四纪洞穴沉积物的年代地层框架 .从南京直立人头骨化石赋存层位及其顶底板铀系年代分析 ,2具头骨化石分属于不同的地质时段 ,Ⅰ号头骨顶层钙板及其石笋的年龄说明其年代应大于 5 0 0kaBP ,Ⅱ号头骨年龄落于 5 0 0～ 2 40kaBP之间 .
The ages of two calcareous plates and stalagmites in two karst caves in Tangshan, Nanjing were determined by thermal ionization mass spectrometry (TIMS) technique, and their age distribution ranged from 500 to 20 ka. According to the ages of these carbonate caves And its relationship with the stratum, the Chronostratigraphy framework of Quaternary sediments in this area has been established.According to the analysis of the stratigraphic hierarchy and vertical distribution of uranium series in the top and bottom of Homo erectus, the two skull fossils belong to different geology Period, Ⅰ skull top calcium plate and its stalagmite ages indicate that its age should be greater than 5000kaBP, Ⅱ skull age falls between 500 ~ 240kaBP.