We present a comparative study on a 700-yr sequence of dendrochronologically ordered tree-rings of Pinus cembra originating from Eastern Carpathians for the period AD 1009–1709. This period covers the solar minima of the Little Ice Age. The aim of this study was to assess the accuracy of our radiocarbon (14C) determinations interpreted on the IntCal13 calibration data and to observe any apparent offsets. The 14C measurements on single and double tree-rings were “wiggle-matched” to secure the dendrochronology cross-matching of all the Pinus cembra wood pieces. The results showed a very good agreement between the age datasets for four out of five wood trunks. However, for one of them a new cross-matching was performed after a quality assurance test, establishing an earlier 48-yr position, recommended by wiggle-matching Bayesian statistics and dendrochronological analysis. Following this adjustment, the quantification of the 14C level variability with respect to the IntCal13 calibration curve was obtained by calculating Δ14C for all tree-ring samples. As a final conclusion, an insignificant 14C concentration offset of –0.63 ± 3.76‰ was found for the Romanian samples.

中文翻译：

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起源于东喀尔巴阡山脉的 700 年树轮序列的树木年代学和 14C 年代测定的间隔

我们对 700 年的树木年代顺序树轮序列进行了比较研究松树起源于东喀尔巴阡山脉，公元 1009-1709 年。这一时期涵盖了小冰河时代的太阳极小期。这项研究的目的是评估我们的放射性碳的准确性（14C) 根据 IntCal13 校准数据解释的测定结果并观察任何明显的偏移。这14对单年轮和双年轮的 C 测量进行“摆动匹配”，以确保所有年轮的树木​​年代学交叉匹配松树木片。结果表明，五分之四的木树干的年龄数据集之间的一致性非常好。然而，对于其中一个，在质量保证测试后进行了新的交叉匹配，建立了较早的 48 年位置，这是由摆动匹配贝叶斯统计和树木年代学分析推荐的。此次调整后，量化14通过计算 Δ 获得相对于 IntCal13 校准曲线的 C 水平变异性14C 适用于所有年轮样本。作为最后的结论，一个微不足道的14罗马尼亚样品的 C 浓度偏移为 –0.63 ± 3.76‰。