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Abrupt Increase of Radiocarbon Concentration in 660 BC in Tree Rings from Grabie Near Kraków (SE Poland)
Radiocarbon ( IF 8.3 ) Pub Date : 2019-05-21 , DOI: 10.1017/rdc.2019.40
Andrzej Rakowski , Marek Krąpiec , Matthias Huels , Jacek Pawlyta , Christian Hamann , Damian Wiktorowski

Miyake et al. (2012, 2013, 2014) described a sudden increase of radiocarbon (14C) concentration in annual tree rings of Japanese cedar (Cryptomeria japonica) and Hinoki cypress (Chamaecyparis obtusa) between AD 774 and 775 and between AD 993 and 994. In both analyzed periods, the sudden increase was observed almost in a single year. The increase in the 14C content was about 12‰ in the period AD 774–775 (Miyake et al. 2012) and about 11.3‰ in the period AD 993–994 (Miyake et al. 2013, 2014; Fogtmann-Schultz et al. 2017; Rakowski et al. 2018). A similar increase was observed in 660 BC, with a peak height of about 10‰ (Park et al. 2017). Single-year samples of dendrochronologically dated tree rings of deciduous oak (Quercus robur) from Grabie, a village near Krakow (SE Poland), spanning the years 670–652 BC, were collected and their 14C content was measured using an AMS technique. The results clearly show a rapid increase in the 14C concentration in tree rings around 660 BC similar to this observed in Park et al. (2017).

中文翻译:

克拉科夫附近格拉比(波兰东南部)的树木年轮中的放射性碳浓度在公元前 660 年突然增加

三宅等人。(2012, 2013, 2014) 描述了放射性碳的突然增加 (14C) 日本雪松年轮中的浓度 (柳杉) 和桧柏 (扁柏)在公元 774 年至 775 年以及公元 993 年至 994 年之间。在这两个分析期间,几乎在一年内观察到突然增加。的增加14C 含量在公元 774-775 年约为 12‰(Miyake 等,2012),在公元 993-994 年约为 11.3‰(Miyake 等,2013、2014;Fogtmann-Schultz 等,2017;Rakowski 等al. 2018)。在公元前 660 年观察到类似的增加,峰值高度约为 10‰(Park 等人,2017 年)。落叶栎树年轮的单年样本(栎木)来自克拉科夫(波兰东南部)附近的一个村庄 Grabie,跨越公元前 670 年至 652 年,被收集并14使用 AMS 技术测量 C 含量。结果清楚地表明,14公元前 660 年左右树木年轮中的 C 浓度与 Park 等人观察到的相似。(2017)。
更新日期:2019-05-21
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