Hacettepe University, Department of Physics Eng., 06800 Beytepe-Ankara, Turkey.
Hacettepe University, Department of Anthropology, 06800 Beytepe-Ankara, Turkey.
Spectrochim Acta A Mol Biomol Spectrosc. 2020 Aug 15;237:118311. doi: 10.1016/j.saa.2020.118311. Epub 2020 Apr 17.
Examining diagenetic parameters such as the organic carbonate contents and the crystallinity of bone apatite quantify the post-mortem alteration of bone. Burial conditions are one of the factors that can influence the diagenesis process. We studied the changes to the organic and mineral components and crystallinity of human bone remains from five Medieval sites in Turkey: Hakemi Use, Komana, İznik, Oluz Höyük and Tasmasor using Attenuated Total Reflectance Fourier Transform Infrared spectroscopy (ATR-FTIR) and principal component analysis (PCA). Analysis of spectral band ratios related to organic and mineral components of bone demonstrated differences in the molecular content in the skeletal remains from the five sites. In order to examine the degree of carbonation of a phosphate matrix, curve-fitting procedures were applied to the carbonate band. We found that the infrared crystallinity index appears to not be sensitive to carbonate content at room temperature for the bone remains studied here. The recrystallization process in bone remains behaved differently among the archaeological sites. The results demonstrate that the burial environments differently affect the organic and mineral components of archaeological bone remains.
检查诸如有机碳酸盐含量和骨磷灰石结晶度等成岩参数可以量化骨骼的死后变化。埋葬条件是影响成岩过程的因素之一。我们使用衰减全反射傅里叶变换红外光谱（ATR-FTIR）和主成分分析（PCA）研究了来自土耳其五个中世纪遗址（Hakemi Use、Komana、İznik、Oluz Höyük 和 Tasmasor）的人类骨骼遗骸的有机和矿物质成分以及结晶度的变化。对与骨骼中有机和矿物质成分相关的光谱带比的分析表明，五个遗址的骨骼遗骸的分子含量存在差异。为了检查磷酸盐基质的碳化程度，对碳酸盐带应用了曲线拟合程序。我们发现，对于这里研究的骨骼遗骸，红外结晶度指数在室温下似乎对碳酸盐含量不敏感。骨骼遗骸中的重结晶过程在不同的考古遗址中表现不同。结果表明，埋葬环境会对考古骨骼遗骸的有机和矿物质成分产生不同的影响。
