U-series dating of hominin fossil-bearing Panlong Cave in Guangdong Province, southern China

U-series dating of hominin fossil-bearing Panlong Cave in Guangdong Province, southern China
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中国广东省盘龙洞含古人类化石的U系列测年

DOI:
10.1016/j.quaint.2015.11.107
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发表时间:
2017-04
影响因子:
2.2
通讯作者:
Jianxin Zhao
Jianxin Zhao
中科院分区:
地球科学3区
文献类型:
--
作者:
Hua Tu;Guanjun Shen;Xuebing Liu;Licheng Qiu;Guijie Pan;Yuexin Feng;Jianxin Zhao

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1987年,在中国南部广东省的盘龙洞发现了两颗人类牙齿和大量的动物化石。该遗址在很大程度上仍然不为史前社区所知,主要是因为缺乏可靠的年代限制。本文报道了八个方解石剖面样品的高精度质谱铀系定年。根据上覆流石层的年代,人类牙齿的年龄肯定超过292 ± 10 ka。次生方解石建造的铀系年龄表明,含方解石矿床的年龄应大于441 ± 18 ka。这些数据支持了古生物学的推断,即盘龙洞可能早于附近的马坝人类遗址。因此,该遗址的人类标本可能代表了大熊猫-剑齿象动物群的早期成员,也是中国南方最古老的非直立人化石之一。
Two hominin teeth and an abundance of faunal remains were recovered from Panlong Cave in Guangdong Province, southern China in 1987. The site has remained largely unknown to the prehistoric community mainly for the lack of reliable chronological constraints. This paper reports high-precision mass spectrometric U-series dating of eight calcite samples from the extant cross-section. Based on the dates on the overlying flowstone layers, the hominin teeth should be definitely older than 292 ± 10 ka. Furthermore, as indicated by the U-series ages on the secondary calcite formations the fossiliferous deposits should be older than 441 ± 18 ka. These dates support the paleontological inference that Panlong Cave may predate the nearby Maba hominin site. The hominin specimens from the site may thus represent an early member of theAiluropoda-Stegodonfauna and one of the oldest non-erectusMiddle Pleistocene hominin fossils in southern China.
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