New chronometric age estimates for the context of the Neanderthal from Wannen-Ochtendung (Germany) by TL and argon dating

New chronometric age estimates for the context of the Neanderthal from Wannen-Ochtendung (Germany) by TL and argon dating
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通过 TL 和氩测年对来自 Wannen-Ochtendung(德国)的尼安德特人进行了新的计时年龄估计

DOI:
10.1016/j.jasrep.2017.05.032
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发表时间:
2017
期刊:
Journal of Archaeological Science: Reports
影响因子:
--
通讯作者:
Ludwig
Ludwig
中科院分区:
--
文献类型:
--
作者:
Richter;Daniel;Klinger;Philip;Schmidt;Christoph;van den Bogaard;Zöller;Ludwig

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尼安德特人的部分脑颅是从与Wannen火山群最新火山活动有关的沉积物中发现的。最后一次火山活动提供了热释光(TL)和Ar/Ar测年的加热矿物样本,从而可以估计人类遗骸的年龄。采用新的热释光方法,使用一个耗时少得多的测量协议,并采用橙红色的热释光信号(R-TL),导致年龄为177 ± 18 ka和176 ± 21 ka的两个样品的不同地质。将这一新数据与其中一个样品的标准TL方法进行了比较,后者提供了187 ± 29 ka的年龄。将发光数据与新获得的来自相同加热事件的样品的Ar/Ar年龄(191 ± 12 ka)进行了对比。所有TL测年结果提供了一致的结果,并完全符合Ar/Ar测年,显示新的TL方法的适用性和准确性。这些数据也与地质年龄估计和其他测时数据吻合得很好,将Wannen的火山活动置于180-190 ka左右,从而提供了化石的Saalian年龄。然而,如此古老的年龄与报告中该标本在尼安德特人血统后期的初步位置形成对比。
The partial neurocranium of a Neanderthal was recovered from deposits related to the latest volcanic activities recorded at the Wannen Volcanic Group. This last volcanic event provided heated mineral samples for thermoluminescence (TL) and Ar/Ar dating, allowing the estimation of the age of the hominin remains. Novel TL methods using a much less time consuming measurement protocol and employing the orange-red TL-signal (R-TL) were applied, resulting in ages of 177 ± 18 ka and 176 ± 21 ka for two samples of different geology. This new data is compared with standard TL-approaches for one of the samples, which provide an age of 187 ± 29 ka. The luminescence data is contrasted with a newly obtained Ar/Ar-age of 191 ± 12 ka for a sample from the identical heating event. All TL-dating results provide congruent results and are in perfect accordance with Ar/Ar dating, showing the applicability and accuracy of the new TL approach employed. These data also agree well with the geological age estimates and other chronometric data, placing the volcanism at Wannen to around 180–190 ka and thus providing a Saalian age of the fossil. Such an old age, however, contrasts to the reported preliminary placement of this specimen late in the Neanderthal lineage.
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