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首页> 外文期刊>Journal of near infrared spectroscopy >Near infrared analysis of fossil bone from the Western Cape of South Africa
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Near infrared analysis of fossil bone from the Western Cape of South Africa

机译：南非西开普省化石骨的近红外分析

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摘要

The burial environment of a fossil bone may be poorly suited to long-term preservation of important chemical constituents. Studies of fossil bone chemistry consequently benefit from knowledge of burial environmental change (burial history). Several techniques have been developed to describe alteration of fossil bone, including measurements of crystallinity using infrared spectroscopy. The utility of near infrared (NIR) spectroscopy was investigated for describing the burial history of fossil bone. Spectra from large sample areas (bulk NIR) identified secondary calcite and clay within fossil bone, and were useful for distinguishing fossils from different localities. Spectra from small sample areas (hyperspectral NIR) were used to map constituents within fossil bones. Calcite and clay pervaded the internal cavities of fossil horn cores, indicating saturation with groundwater. The identification and distribution of secondary minerals is relevant for studies of taphonomic process, hence NIR is a useful supplement to existing techniques for assessing the burial history of fossil bone.
机译：化石骨骼的埋葬环境可能不适合长期保存重要的化学成分。因此，对化石骨化学的研究得益于埋葬环境变化的知识（埋葬历史）。已经开发了几种技术来描述化石骨的变化，包括使用红外光谱法测量结晶度。研究了近红外（NIR）光谱仪用于描述化石骨的埋葬历史。来自大样本区域（体NIR）的光谱确定了化石骨中的次方解石和粘土，对于区分不同地区的化石非常有用。来自小样本区域的光谱（高光谱NIR）用于绘制化石骨骼中的成分。方解石和粘土遍布化石角核的内部空腔，表明地下水已饱和。次生矿物质的识别和分布与垂线过程的研究有关，因此，NIR是对评估化石骨埋藏历史的现有技术的有用补充。

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