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The potential of cryptotephra and OSL dating for refining the chronology of open-air archaeological windblown sand sites: A case study from Mirkowice 33, northwest Poland

机译:密码学和OSL测年技术在完善露天考古风沙地带年代学方面的潜力:来自波兰西北部Mirkowice 33的案例研究

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摘要

The discovery of a cryptotephra (nonvisible volcanic horizon) in a windblown sand archaeological site in Poland highlights how luminescence and tephrostratigraphy may combine to better refine the chronology of such sites. In this study we identify a cryptotephra horizon which on the basis of major and minor element geochemistry and an OSL age of 2.3 ± 0.1 ka is correlated to the Glen Garry tephra. The different methodological strengths of OSL and tephrostratigraphy may be harnessed to counter the limitations of a single approach to produce a more secure chronology. Although in this study the tephra deposition event is shown to post-date the archaeological activity, the methodological approach is clearly demonstrated. Further investigations will reveal if cryptotephra layers are commonly preserved in such environmental settings. If this is so then future applications of this approach may prove to be more widely applicable.
机译:在波兰的一个风沙考古遗址中发现了一个隐隐火山(不可见的火山层),这突显了发光和岩层地层学如何结合起来以更好地完善这些遗址的年代。在这项研究中,我们确定了隐隐层位,该隐层层根据主要元素和次要元素地球化学以及OSL年龄2.3±0.1 ka与Glen Garry tephra相关。可以利用OSL和断层地层照相法的不同方法优势来抵消单一方法产生的局限性,以产生更安全的时间顺序。尽管在这项研究中,特弗拉沉积事件被证明比考古活动要晚,但方法论方法却得到了明确证明。进一步的研究将揭示在这种环境下是否通常保存隐胎蛾层。如果是这样的话,那么这种方法的未来应用可能会证明更广泛地适用。

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