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沖縄県与那国島トゥグル浜遺跡およびビーチロック類の年代測定 (タンデトロン加速器質量分析計業績報告2002(平成14)年度)

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  • ^<14>C age measurement of carbonate samples recovered from Tuguru-hama ruins and beach rocks in Yonaguni Island, Japan(Summaries of Researches Using AMS)

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Abstract

^<14>C ages of Tuguru-hama ruins and beach rocks in Yonaguni Island, Okinawa Prefecture were dated using with shell and coral fragments collected from the sites. The ^<14>C age of the shell recovered from Tuguru-hama ruins shows 4,410 cal BP. This age represents that the Tuguru-hama ruins was constructed at about 4,500 years ago, and it is oldest ruins in Sakishima (Southwest Ryukyus) area. The ages of beach rocks showed that the sea level has been almost same since 6,500 year ago.

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