Pub Date : 2024-01-29DOI: 10.7146/dja.v13i1.137091
Jesper Olsen, Bo Madsen, Marie Kanstrup, Carsten Korthauer, Lutz Klassen
In 2015-2017, East Jutland Museum excavated a series of well-preserved prehistoric and early historic trackways at Kastbjerg Å in the Kastbjerg Å river valley (eastern Jutland, Denmark). In this article, we will present the earliest of the in situ preserved structures, the Middle Neolithic trackway A20, and the high-precision dating of this structure. Dendrochronological dating of wood sequences provides very precise ages for archaeological timbers from buildings or structures, such as bridges or ships. This is not possible, however, when the dendrochronological samples lack sapwood, if the wood sequence has too few rings to provide definite placement on the dendrochronological master curve, if the wood sequence falls outside the range of the master curves or if the species of wood is not suitable for dendrochronological analysis. Here, we date a wood sequence of an alder tree from trackway A20 using the radiocarbon wiggle-match method to 2911 ±5 BC. The function of the trackway and the significance of the Neolithic river crossing at the Kastbjerg Å site are discussed in the light of European parallels and the regional cultural context.
2015-2017 年，东日德兰博物馆在 Kastbjerg Å 河谷（丹麦日德兰东部）的 Kastbjerg Å 发掘出一系列保存完好的史前和早期历史足迹。在这篇文章中，我们将介绍现存结构中最早的新石器时代中期轨迹 A20，以及对该结构进行的高精度年代测定。木材序列的年代测定法可为建筑物或结构（如桥梁或船只）中的考古木材提供非常精确的年代。但是，如果树木年代学样本缺乏边材，如果木材序列的年轮太少，无法在树木年代学主曲线上提供明确的位置，如果木材序列不在主曲线的范围内，或者如果木材的种类不适合进行树木年代学分析，那么就无法实现这一点。在此，我们使用放射性碳扭摆匹配法对轨道 A20 上的一棵桤木树的木质序列进行了年代测定，其年代为公元前 2911 ±5 年。我们根据欧洲的相似之处和地区文化背景，讨论了卡斯比约遗址新石器时代河流渡口的功能和意义。
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