Comparison of 14C Ages between LSC and AMS Measurements of Choukai Jindai Cedar Tree Rings at 2600 cal BP
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CitationTakahashi, Y., Sakurai, H., Suzuki, K., Sato, T., Gunji, S., Tokanai, F., ... & Sunohara, Y. (2010). Comparison of 14C ages between LSC and AMS measurements of Choukai Jindai cedar tree rings at 2600 cal BP. Radiocarbon, 52(3), 895-900.
DescriptionFrom the 20th International Radiocarbon Conference held in Kona, Hawaii, USA, May 31-June 3, 2009.
AbstractRadiocarbon ages of Choukai Jindai cedar tree rings growing in the excess era of 14C concentrations during 2757-2437 cal BP were measured using 2 types of 14C measurement methods, i.e. liquid scintillation counting (LSC) and accelerator mass spectrometry (AMS). The difference between the 2 methods is 3.7 +/- 5.2 14C yr on average for 61 single-year tree rings, indicating good agreement between the methods. The Choukai data sets show a small sharp bump with an average 14C age of 2497.1 +/- 3.0 14C yr BP during 2650-2600 cal BP. Although the profile of the Choukai LSC data set compares well with that of IntCal04, having a 14C age difference of 4.6 +/- 5.3 14C yr on average, the Choukai LSC 14C ages indicate variability against the smoothed profile of IntCal04.