Radiocarbon dating of the carbonaceous materials excavated from the archaeological sites of Satsumon period in Hokkaido, Japan(Proceedingsof the 17^<th> Symposium on Researches Using the Tandetron AMS System at Nagoya University in 2004)

DOI IR HANDLE Open Access

Bibliographic Information

Other Title
  • 擦文時代の遺跡から出土した遺物の^<14>C年代測定 : 旭川市の擦文遺跡から出土した土器の付着炭化物を中心に(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)

Search this article

Abstract

Satsumon culture flourished in Hokkaido and Tohoku areas is characterized by the use of Satsumon pottery. Typological analyses of Satsumon pottery and B-Tm volcanic ashes excavated from Satsumon sites have provided the chronological information on Satsumon period. These analyses provide relative sequence of date; accordingly, there remains a question on the calendar age of the early and the terminal stages of Satsumon period. Dating methods based on natural science would contribute to investigation of the calendar age. In this study, ^<14>C ages of 2 carbonized plant matters and 14 carbonaceous materials on the potshards excavated from Satsumon sites at Asahikawa and Toyotomi areas in Hokkaido were measured by accelerator mass spectrometry (AMS). Their δ^<13>C values were measured with an isotopic mass spectrometer. Each ^<14>C age of the carbonaceous material on the shard shows older age than the archaeological age of the pottery. Although Asahikawa city is located in Kamikawa basin, the inland area of Hokkaido, the δ^<13>C values indicate that these carbonaceous materials originated from the marine products. The Isikari River where salmons run for spawning flows through Kamikawa basin. It is suggested that Satsumon people at Asahikawa had engaged in fishing of salmons for trading. Therefore, the systematic age difference between the archaeological age and ^<14>C age is due to the marine carbon reservoir effect of salmon.

Journal

Details 詳細情報について

Report a problem

Back to top