弥生・古墳時代の土器に付着した炭化物の AMS^<14>C年代測定 : 愛知・石川県の遺跡から出土した土器について(第17回名古屋大学タンデトロン加速器質量分析計シンポジウム平成16(2004)年度報告)
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Archeological age of pottery is a relative age based on the typological and stratigraphic analyses. Accelerator mass spectrometry (AMS) is a useful method for radiocarbon dating of charred-carbonaceous material on the potsherd. The carbonaceous material attached on inside or outside surface of the sherd is residues of food or soot from fuels used at the time of cooking. Therefore, the calibrated ^<14>C age should be the age of pottery usage. The purpose of this study is to provide AMS ^<14>C ages for the pottery samples of the Yayoi and Kofun periods in Aichi and Ishikawa Prefectures. The samples had been excavated from Tukinawate, Asahi, Kadomanuma and Hachioji sites in Aichi Prefecture as well as Fujie-B, Yokaichi-jikata, Shimoyasuhara, Higashi-matoba-takenohana, Nekohashi, Ohtomo-nishi, Ohnagano and Sendai-nomi sites in Ishikawa Prefecture, central Japan. ^<14>C/^<12>C and ^<13>C/^<12>C ratios of 56 pottery samples were measured with AMS. The AMS ^<14>C ages were calibrated to calendar dates by using the INTCAL98 data. The calibrated ages of pottery samples were compared with their archeological ages. The starting age of the middle Yayoi period in Aichi and Ishikawa Prefectures was assigned to around BC 4^<th> century. The starting age of the early Kofun period in Aichi and Ishikawa Prefectures was assigned to around AD 3^<rd> century. Samples (Nos.37 and 56) have known ages determined with dendrochronological method. The calibrated ^<14>C ages of No.37 and No.56 samples coincided with the dendrochronological ages.
第17回名古屋大学タンデトロン加速器質量分析計シンポジウム平成16(2004)年度報告 Proceedings of the 17th symposiumon Researches Using the Tandetron AMS System at Nagoya University in 2004\日時:平成17 (2005)年1月24日(月)､25日(火) 会場:名古屋大学シンポジオン Date:January 24th and 25th, 2005 Place:Nagoya University Symposion Hall
名古屋大学加速器質量分析計業績報告書 16 95-104, 2005-03