A chronological study of archaeological remains showing plant utilization during the second half of the Jomon period at the Shimo-yakebe site, Tokyo, Japan 要

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  • 東京都下宅部遺跡から出土した縄文時代後半期の植物利用に関連する 遺構・遺物の年代学的研究
  • トウキョウ シモヤケベ イセキ カラ シュツドシタ ジョウモン ジダイ コウハンキ ノ ショクブツ リヨウ ニ カンレンスル イコウ イブツ ノ ネンダイガクテキ ケンキュウ

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Archaeological remains of the Jomon period showing utilization of plant resources such as wooden structures for water usage and mounds of Juglans or Aesculus fruits were excavated at the Shimo-yakebe site in the Kanto plain. We revealed chronology of these remains by radiocarbon dating and examined changes in the utilization of plant resources, particularly food resources. Radiocarbon dating showed that these remains were made during ca. 5300–2800 cal BP of the middle to latest Jomon periods, concenctrated in five chronological groups. Groups S-1 (ca. 5300–4800 cal BP) and S-2 (ca. 4800–4400 cal BP) corresponding to the middle Jomon period were characterized by the utilization of Juglans fruits. Aesculus turbinata fruits were already used in group S-2. Groups S-3 and S-4 (ca. 4500–3300 cal BP) showed not only prominent utilization of Aesculus turbinate fruits, but usage of various resources such as Quercus subgen. Cyclobalanopsis and Quercus sect. Aegilops fruits. Castanea crenata was continuously utilized until group S-5 (ca. 3400–2800 cal BP) of the latest Jomon period. The utilization of food resources at the Shimo-yakebe site was more multi-layered than the previously proposed simple transition from Castanea in the middle Jomon period to Aesculus in the late and latest Jomon periods.

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