Mass spectrometric U-series dating of Huanglong Cave in Hubei Province, central China: Evidence for early presence of modern humans in eastern Asia
Mass spectrometric U-series dating of Huanglong Cave in Hubei Province, central China: Evidence for early presence of modern humans in eastern Asia
复制标题
中国中部湖北省黄龙洞的质谱U系列测年：现代人类早期存在于东亚的证据
DOI：
10.1016/j.jhevol.2013.05.002
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发表时间：
2013-08-01
影响因子：
3.2
通讯作者：
Zhao, Jian-xin
中科院分区：
文献类型：
--
作者：
Shen, Guanjun;Wu, Xianzhu;Zhao, Jian-xin
大多数研究人员认为，解剖学上的现代人（AMH）最早出现在160-190万年前的非洲，直到50万年前才到达东亚。然而，这些情景的可信度可能受到先前为中国发现的古人类化石建立的一个很大程度上不准确和压缩的年代框架的影响。最近有越来越多的证据表明，大约100万年前甚至更早的时候，东亚地区可能存在抗结核杆菌感染。本文报道了最近在湖北省北部发现的晚更新世古人类遗址黄龙洞的插层流岩样品的高精度质谱u系列测年。在那里进行的系统挖掘已经在现场发现了七颗古人类牙齿和几十件石头和骨头制品。如果将古人类牙齿归属于现代智人，则u系列的时间跨度为81 - 101 ka之间，这是目前中国所有45 ka之后的AMH的最窄时间跨度。或者，本研究通过当地古代种群的独立进化或与外来AMH的同化，为AMH形态在中国早期存在提供了进一步的证据。随着最近从直立人到AMH的古人类样本的年代测定结果，一个新的扩展和连续的中国古人类化石时间表正在形成，这为人类进化的重建，特别是现代人类在东亚的起源提供了依据。(C) 2013 Elsevier Ltd.版权所有。
Most researchers believe that anatomically modern humans (AMH) first appeared in Africa 160-190 ka ago, and would not have reached eastern Asia until 50 ka ago. However, the credibility of these scenarios might have been compromised by a largely inaccurate and compressed chronological framework previously established for hominin fossils found in China. Recently there has been a growing body of evidence indicating the possible presence of AMH in eastern Asia ca. 100 ka ago or even earlier. Here we report high-precision mass spectrometric U-series dating of intercalated flowstone samples from Huanglong Cave, a recently discovered Late Pleistocene hominin site in northern Hubei Province, central China. Systematic excavations there have led to the in situ discovery of seven hominin teeth and dozens of stone and bone artifacts. The U-series dates on localized thin flowstone formations bracket the hominin specimens between 81 and 101 ka, currently the most narrow time span for all AMH beyond 45 ka in China, if the assignment of the hominin teeth to modern Homo sapiens holds. Alternatively this study provides further evidence for the early presence of an AMH morphology in China, through either independent evolution of local archaic populations or their assimilation with incoming AMH. Along with recent dating results for hominin samples from Homo erectus to AMH, a new extended and continuous timeline for Chinese hominin fossils is taking shape, which warrants a reconstruction of human evolution, especially the origins of modern humans in eastern Asia. (C) 2013 Elsevier Ltd. All rights reserved.