EMPLOYING TL METHODS FOR THE VERIFICATION OF MACROSCOPICALLY DETERMINED HEAT ALTERATION OF FLINT ARTEFACTS FROM PALAEOLITHIC CONTEXTS
EMPLOYING TL METHODS FOR THE VERIFICATION OF MACROSCOPICALLY DETERMINED HEAT ALTERATION OF FLINT ARTEFACTS FROM PALAEOLITHIC CONTEXTS
复制标题
采用 TL 方法验证旧石器时代背景下燧石文物的宏观热蚀变
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
N. Goren
中科院分区：
文献类型：
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作者：
D. Richter;N. Alperson;N. Goren
重建过去人类使用火的基础往往是考古遗址中存在火，石质材料的改变证明了这一点。在这里，一种基于热释光(TL)方法的简单测试被用作验证工具，用于宏观鉴定来自以色列Gesher Benot Ya‘aqov早中更新世遗址的打火石微文物的燃烧损害。微小人工制品的小尺寸往往阻止了外表面的移除，对于外表面，TL信号可能在挖掘过程中因暴露在光中而改变(漂白)。在新鲜的原材料中，发现了阳光对TL信号的漂白，但对于考古材料来说，似乎没有那么大的问题，可能是由于斑点。然而，一些样品的热释光结果并不明确，有时很难区分加热和沉积后漂白，特别是对于宏观上认为没有加热的样品。对热释光数据的定性解释与宏观评估进行了比较。热释光分析与宏观观测的总体一致提供了对观察到的燃烧的独立验证，从而支持了在Gesher Benot Ya‘aqov的整个长职业序列中使用和控制了火的假设。
The reconstruction of past human use of fire is often based on the presence of fire in archaeological sites as evidenced by alterations of lithic material. Here, a simple test based on thermoluminescence (TL) methods is used as a verification tool for the macroscopic identification of burning damage on flint microartefacts from the Early and early Middle Pleistocene site of Gesher Benot Ya‘aqov (Israel). The small dimensions of the microartefacts often prevented the removal of the outer surface, for which the TL signal might have been altered (bleached) by exposure to light during excavation. Bleaching of the TL signal by sunlight was found for fresh raw material, but appeared to be less problematic for the archaeological material, presumably due to patination. However, TL results for some samples are ambiguous and it is sometimes difficult to distinguish heating from post-depositional bleaching, especially for samples that are macroscopically considered as not having been heated. A qualitative interpretation of the TL data is compared with the macroscopic assessment. The general agreement of the TL analyses with the macroscopic observations provides an independent verification of the observed burning and thus supports the assumption that fire was used and controlled throughout the long occupational sequence of Gesher Benot Ya‘aqov.