Coupled ESR and U-series dating of fossil teeth from Yiyuan hominin site, northern China

Coupled ESR and U-series dating of fossil teeth from Yiyuan hominin site, northern China
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中国北方沂源古人类遗址化石牙齿的ESR和U系列耦合定年

DOI:
10.1016/j.quaint.2015.05.052
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发表时间:
2016-05
影响因子:
2.2
通讯作者:
Gongming Yin
Gongming Yin
中科院分区:
地球科学3区
文献类型:
--
作者:
Jianxin Zhao;Min Lin;Song Xing;Gongming Yin

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对中国北方沂源人类遗址的两个地点(地点1和地点3)的哺乳动物牙齿化石进行了ESR和U系分析。这两种方法的结合可以重建化石样品的铀迁移历史,克服了单独使用ESR和铀系年龄估算的局限性。对两个地点的9颗牙齿进行了ESR/U系联合测年(Au模式),测年范围为420 ~ 320 ka,将沂源遗址的人类层沉积时间确定为MIS 11 ~ 9。本研究的年龄结果将沂源遗址置于周口店第一地点和和县直立人遗址的同一时代范围。通过与其他人类遗址的比较,本文的研究突出了直立人与古人类共存的可能性。
Coupled ESR and U-series analyses of mammalian fossil teeth were carried out on two localities of Yiyuan hominin site (Locality 1 and 3) in northern China. The U-migration history of the fossil samples could be reconstructed by the combination of the two techniques, and overcome the limitation of stand-alone ESR and U-series age estimation. We obtained a combined ESR/U-series age (AU model) range from ∼420 to 320 ka from nine teeth recovered from the two localities, which pinpoints the deposition of hominin layer of Yiyuan site to MIS 11 to 9. The age results in this study places Yiyuan site at the same time range of Zhoukoudian Locality 1 and HexianHomo erectussites. Comparing with other hominin sites, this study of YiyuanHomo erectussite highlights the possibility of coexistence betweenHomo erectusand archaicH. sapiensin China.
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