Misleading residues on lithics from Star Carr: Identification with Raman microspectroscopy
Misleading residues on lithics from Star Carr: Identification with Raman microspectroscopy
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Star Carr 石器上的误导性残留物:用拉曼显微光谱法进行鉴定
DOI:
10.1016/j.jasrep.2018.03.018
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发表时间:
2018
期刊:
影响因子:
0.9
通讯作者:
Croft S
中科院分区:
文献类型:
--
作者:
Croft S
Ancient trace residues left on stone artefacts by people represent a source of potentially fruitful data about diet, technology, and behaviour, but their investigation is not problem-free. Rather, correct identification of degraded residues and determination of their natural or anthropogenic origin remains at the heart of current methodological development in lithic residue analysis. It is increasingly becoming clear that reflected visible light microscopy (VLM) is insufficient to make secure identifications of ambiguous residues. Confocal Raman microspectroscopy (micro-Raman) is a non-destructive technique that can identify the specific molecular nature of microscopic residues with high spatial resolution. Here, the identification of artefact residues as anthropogenic by visual inspection alone was found to be incorrect in all cases tested. Micro-Raman provided the key source of information to unambiguously determine the chemical nature of residues and hence their origin.
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