Research School of Earth Sciences, Australian National University, Canberra ACT 0200, Australia.
J Hum Evol. 2011 May;60(5):597-604. doi: 10.1016/j.jhevol.2010.12.001.
We present a detailed description of the geological setting of the burial site of the WLH 50 human remains along with attempts to constrain the age of this important human fossil. Freshwater shells collected at the surface of Unit 3, which is most closely associated with the human remains, and a carbonate sample that encrusted the human bone were analysed. Gamma spectrometry was carried out on the WLH 50 calvaria and TIMS U-series analysis on a small post-cranial bone fragment. OSL dating was applied to a sample from Unit 3 at a level from which the WLH 50 remains may have eroded, as well as from the underlying sediments. Considering the geochemistry of the samples analysed, as well as the possibility of reworking or burial from younger layers, the age of the WLH 50 remains lies between 12.2 ± 1.8 and 32.8 ± 4.6 ka (2-σ errors).
我们详细描述了 WLH 50 人类遗骸埋藏地点的地质背景，并试图确定这一重要人类化石的年代。在与人类遗骸关系最密切的第 3 单元的表面采集了淡水贝壳，以及一个包裹人类骨骼的碳酸盐样本。对 WLH 50 颅骨进行了伽马光谱分析，对一小段颅后骨骼碎片进行了 TIMS U 系列分析。对第 3 单元的一个样本进行了 OSL 测年，该样本来自可能已经侵蚀了 WLH 50 遗骸的层位，以及来自下伏沉积物的样本。考虑到分析样本的地球化学性质，以及可能来自较年轻地层的搬运或埋藏，WLH 50 遗骸的年代在 12.2±1.8 至 32.8±4.6ka（2-σ 误差）之间。
