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Radiocarbon and Stable Isotope Analyses on the Earliest Jomon Skeletons from the Tochibara Rockshelter, Nagano, Japan

Published online by Cambridge University Press:  18 July 2016

Minoru Yoneda ,
Masashi Hirota ,
Masao Uchida ,
Atsushi Tanaka ,
Yasuyuki Shibata ,
Masatoshi Morita  and
Takeru Akazawa
Minoru Yoneda*
Affiliation:
Environmental Chemistry Division, National Institute for Environmental Studies, onogawa 16-2, Tsukuba, Ibaraki 305-8506, Japan
Masashi Hirota
Affiliation:
Institute of Accelerator Analysis, Ltd. Ichiridan 6-270, Shirasaka, Shirakawa, Fukushima 961-0835, Japan
Masao Uchida
Affiliation:
Japan Marine Science and Technology Center, Natsushima-cho 2-15, Yokosuka, Kanagawa 237-0061, Japan
Atsushi Tanaka
Affiliation:
Environmental Chemistry Division, National Institute for Environmental Studies, onogawa 16-2, Tsukuba, Ibaraki 305-8506, Japan
Yasuyuki Shibata
Affiliation:
Environmental Chemistry Division, National Institute for Environmental Studies, onogawa 16-2, Tsukuba, Ibaraki 305-8506, Japan
Masatoshi Morita
Affiliation:
Environmental Chemistry Division, National Institute for Environmental Studies, onogawa 16-2, Tsukuba, Ibaraki 305-8506, Japan
Takeru Akazawa
Affiliation:
International Research Center for Japanese Studies, Oeyama-cho 3-2, Goryo, Nishikyo-ku, Kyoto 610-1192, Japan
*
2Corresponding author. Email: [email protected].
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Abstract

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This study presents the results of carbon and nitrogen isotopic analyses of six human skeletons excavated from the Tochibara rockshelter (Nagano, Japan). The human skeletons were reported to be accompanied by “Oshigata-mon” type pottery dating to the Earliest Jomon period (8900 BP ≃ 6600 BP). A radiocarbon determination from charcoal associated with the human remains was reported to be 8650 ± 180 BP (GaK-1056). However, the depositional context of human skeletons was uncertain because they were recovered by excavations that were dug by prescribed levels. Our results indicated that these skeletons date to the Earliest Jomon period; the 14C determinations place these remains between 8260 ± 100 BP (TERRA-b030799ab38) and 8580 ± 100 BP (TERRA-b011300a35). This coincides with the archaeological evidence that these specimens are some of the oldest Jomon skeletal materials. Furthermore, δ13C and δ15N values provide evidence for the first reconstruction of the diet of an inland Earliest Jomon population. Although the distribution of data indicated a possibility that they had exploited small amounts of seafood, the isotopic data point to this group having relied heavily on a terrestrial ecosystem based on C3 plants.

Type
Articles
Information
Radiocarbon , Volume 44 , Issue 2 , 2002 , pp. 549 - 557
Copyright
Copyright © 2002 The Arizona Board of Regents on behalf of the University of Arizona 

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