Radiocarbon dating of plant macrofossils excavated from the Torihama shell midden site, Fukui Prefecture, Japan

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  • 福井県鳥浜貝塚から出土した大型植物遺体の14C 年代測定
  • 福井県鳥浜貝塚から出土した大型植物遺体の¹⁴C年代測定 : 縄文時代草創期から前期の堆積物層序と土器型式の年代の再検討
  • フクイケンドリハマ カイズカ カラ シュツド シタ オオガタ ショクブツ イタイ ノ ¹ ⁴ C ネンダイ ソクテイ : ジョウモン ジダイ ソウソウキ カラ ゼンキ ノ タイセキブツソウ ジョ ト ドキ ケイシキ ノ ネンダイ ノ サイケントウ
  • Radiocarbon dating of plant macrofossils excavated from the Torihama shell midden site, Fukui Prefecture, Japan—a chronological reconsideration of sediment layers and types of pottery from the incipient to early Jomon periods (In Japanese with English abstract).
  • A chronological reconsideration of sediment layers and types of pottery from the incipient to early Jomon periods
  • 縄文時代草創期から前期の堆積物層序と土器型式の年代の再検討

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Abstract

In order to reconsider the absolute chronology of sediment layers and types of pottery from the incipient to early Jomon periods at the Torihama shell midden site, we conducted radiocarbon dating on 32 samples of plant macrofossils obtained from sediment samples from research areas 81L (1981), 82T (1982), and 83T (1983). The sediment layers containing early Jomon pottery of the Kitashirakawa Kaso II types (83T, layers 6–31) were dated to ca. 5990–5655 cal BP, and those containg pottery of the Kitashirakawa Kaso Ib and Hashima Kaso II types (83T, layers 34–77) were dated to ca. 6500–6190 cal BP. Examples of roulette-patterned pottery (Oshigatamon) from the initial Jomon period excavated from sediments above and below the Mikata tephra layer (UOki) were dated to ca. 9675–9535 cal BP (81L, layers 38–41) and ca. 10,495–10,250 cal BP (81L, layers 43–44), respectively. Sediment layers including cord-marked pottery (Tajomon) from the incipient Jomon period were dated to ca. 11,615–11,280 cal BP (81L, layer 49). These radiocarbon dates, along with paleoenvironmental information from pollen and plant macrofossils from the same sediment samples, enable us to clarify the change in human-environment interactions from the incipient to early Jomon periods (ca. 15,000–5500 cal BP) at this site.

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