Wiggle-match dating of tree-ring sequences is particularly promising for achieving high-resolution dating across periods with reversals and plateaus in the calibration curve, such as the entire post-Columbian period of North American history. Here we describe a modified procedure for wiggle-match dating that facilitates precise dating of wooden museum objects while minimizing damage due to destructive sampling. We present two case studies, a dugout canoe and wooden trough, both expected to date to the 18th–19th century. (1) Tree rings were counted and sampled for dating from exposed, rough cross-sections in the wood, with no or minimal surface preparation, to preserve these fragile objects; (2) dating focused on the innermost and outermost portions of the sequences; and (3) due to the crude counting and sampling procedures, the wiggle-match was approximated using a simple ordered Sequence, with gaps defined as Intervals. In both cases, the outermost rings were dated with precision of 30 years or better, demonstrating the potential of wiggle-match dating for post-European Contact canoes and other similar objects.

中文翻译：

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适用于美国早期博物馆藏品的“近似”配对约会

树木年轮序列的摆动匹配测年对于在校准曲线中出现逆转和稳定的时期（例如北美历史上的整个后哥伦布时期）实现高分辨率测年特别有希望。在这里，我们描述了一种修改后的摆动匹配约会程序，该程序有助于对木制博物馆物品进行精确约会，同时最大限度地减少破坏性采样造成的损坏。我们提供两个案例研究，一艘独木舟和木槽，预计均可追溯到 18 至 19 世纪。(1) 对树木年轮进行计数和取样，以从木材中裸露的粗糙横截面进行年代测定，无需或只进行极少的表面处理，以保存这些易碎物品；(2) 测年侧重于序列的最内层和最外层部分；(3)由于粗略的计数和采样程序，使用简单的有序序列来近似摆动匹配，其中间隙定义为间隔。在这两种情况下，最外层环的测年精度都达到了 30 年或更高，这证明了对后欧洲接触独木舟和其他类似物体进行摆动匹配测年的潜力。