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Radiocarbon Calibration for Japanese Wood Samples

Published online by Cambridge University Press:  18 July 2016

Minoru Sakamoto
Affiliation:
National Museum of Japanese History, 117 Jonai-cho, Sakura-shi, Chiba 285-8502, Japan. Email: sakamoto@rekihaku.ac.jp.
Mineo Imamura
Affiliation:
National Museum of Japanese History, 117 Jonai-cho, Sakura-shi, Chiba 285-8502, Japan. Email: sakamoto@rekihaku.ac.jp. Department of Japanese History, Graduate University for Advanced Studies, 117 Jonai-cho, Sakura-shi, Chiba 285-8502, Japan.
Johannes Van der Plicht
Affiliation:
Center for Isotope Research, University of Groningen, NL-9747 AG Groningen, the Netherlands.
Takumi Mitsutani
Affiliation:
Nara National Cultural Properties Research Institute, 2-9-1 Nijo-cho, Nara-shi, Nara 630-8002, Japan.
Makoto Sahara
Affiliation:
National Museum of Japanese History, 117 Jonai-cho, Sakura-shi, Chiba 285-8502, Japan. Email: sakamoto@rekihaku.ac.jp.
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Abstract

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The radiocarbon content of Japanese cedars was measured by accelerator mass spectrometry for decadal tree-ring samples from the period of 240 BC to AD 900. Conventional gas counting was also used for part of the samples. The data were compared with the INTCAL98 calibration curve (Stuiver et al. 1998). The results indicate that the difference in atmospheric 14C between Japan and North America or Europe is negligible at this period, less than 18 14C yr using an average of 50 yr. However, in the period of about AD 100 to about AD 200, we cannot exclude the possibility of a deviation of the order of 30 to 40 14C yr to the older ages.

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Type
Calibration
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