Initial Al-26/Be-10 burial dating of the hominin site Bailong Cave in Hubei Province, central China
Initial Al-26/Be-10 burial dating of the hominin site Bailong Cave in Hubei Province, central China
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中国中部湖北省白龙洞古人类遗址的初步Al-26/Be-10埋葬年代测定
DOI：
10.1016/j.quaint.2014.10.028
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发表时间：
2015
影响因子：
2.2
通讯作者：
Granger Darryl E.
中科院分区：
文献类型：
--
作者：
Liu Xuebin;Shen Guanjun;Tu Hua;Lu Chengqiu;Granger Darryl E.
湖北北方白龙洞是我国重要的人类遗址，出土了直立人牙齿、石器和丰富的动物群。然而，由于缺乏合适的定年方法，以往的年龄估计都来自生物地层对比。在这里，我们报告的第一个应用程序的放射性同位素测年方法的网站。对两个石英样本进行三次26 Al/10 Be测量，得出加权平均埋藏年龄为0.76 ± 0.06万年（Ma，1σ）。考虑到测年方法可能存在的偏差、地层顺序和快速沉积的证据，该遗址的文化沉积物应该比上述日期更年轻。这与之前在早/中更新世过渡时期的生物地层年龄估计一致，并可能表明人类与剑齿象-大熊猫动物群的共存时间比之前估计的要早。
With the discovery ofHomo erectusteeth, stone artifacts and a rich fauna, Bailong Cave in northern Hubei Province is an important hominin/archaeological site in China. However, due to the lack of suitable dating methods, the previous age estimates all come from biostratigraphic correlations. Here we report the first application of a radio-isotopic dating method to the site. Three26Al/10Be measurements of two quartz samples give a weighted mean burial age of 0.76 ± 0.06 million years (Ma, 1σ). Taking into account possible bias of the dating method, stratigraphic order and evidence for rapid sedimentation, the cultural deposits of the site should be somewhat younger than the above date. This is consistent with previous biostratigraphic age estimates at around the Early/Middle Pleistocene transition, and possibly indicates an earlier human coexistence withStegodon–Ailuropodafauna than previously estimated.