ABSTRACT The European Solutrean has yielded one of the oldest chert assemblages documenting intentional heat treatment. Many questions about social and economic factors arise in this context. For example, did Solutrean knappers heat-treat only specific types of chert? Were specific heating techniques adapted to specific types of chert? We investigate these questions by analyzing 43 chert artifacts from Laugerie-Haute. We use near-infrared spectroscopy to identify heat-treated artifacts made from four different types of chart, and to estimate their heating temperatures. We identify 13/37 test pieces as heat-treated. Only 5 of these 13 pieces (38%) would have been identified as such macroscopically (based on gloss contrast). The overall magnitude of gloss, cannot be used to identify heat-treated chert artifacts. These findings have implications for future studies of the prevalence of heat-treated artifacts in Solutrean assemblages. Visual identification based on surface gloss is likely to only recognize the smaller part of heat-treated artifacts.

中文翻译：

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我们是否错过了Solutrean中所有热处理件的一半？

摘要欧洲Solutrean已生产出最古老的石组合之一，记录了有意的热处理。在这种情况下，出现了许多有关社会和经济因素的问题。例如，Solutrean敲击者是否仅对特定类型的of石进行热处理？特定的加热技术是否适合特定类型的of石？我们通过分析来自Laugerie-Haute的43种石文物来调查这些问题。我们使用近红外光谱来识别由四种不同类型的图表制成的经过热处理的工件，并估算其加热温度。我们确定13/37个试件是经过热处理的。在宏观上（基于光泽度对比），在这13个碎片中只有5个（38％）被鉴定为是这样的。光泽度的总体大小不能用于识别经过热处理的石伪迹。这些发现对将来对Solutrean组合中的热处理伪影的普遍性研究具有启示意义。基于表面光泽的视觉识别可能仅识别出较小的热处理工件。