14C Dating of Cremated Bones: The Issue of Sample Contamination
14C Dating of Cremated Bones: The Issue of Sample Contamination
复制标题
火化骨头的 14C 年代测定：样本污染问题
DOI：
10.1017/s0033822200055922
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发表时间：
2009
期刊：
影响因子：
8.3
通讯作者：
Guy de Mulder
中科院分区：
文献类型：
--
作者：
M. Van Strydonck;M. Boudin;Guy de Mulder
最近的比较研究证明了骨灰的放射性碳年代测定的有效性。然而，在大多数研究中，样品污染的问题被忽视了。对火化后的骨头样本的分析表明，在某些情况下，火化后的骨头受到污染。这种污染在骨头表面附近更为明显，并取决于火化骨头的致密性以及现场条件。δ 13 C不是区分污染骨和未污染骨的良好估计值。醋酸预处理是清洁样品最合适的方法，但最好去除表面，避免火化的骨头不完全是白色（火化温度为25 ℃）。<725 °）。
Recent comparative studies have proven the validity of radiocarbon dates of cremated bones. The issue of sample contamination has, however, been overlooked in most studies. Analyses of cremated bone samples has shown that in some cases, cremated bones are contaminated. This contamination is more distinct near the surface of the bones and depends on the compactness of the cremated bone as well as on the site conditions. δ13C is not a good estimator to discriminate between contaminated and uncontaminated bones. An acetic acid pretreatment is the most appropriate method to clean samples, but it is better to remove the surface and to avoid cremated bones that are not entirely white (cremation temp. <725 °).