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Please use this identifier to cite or link to this item: http://hdl.handle.net/10087/9916

Title: 榛名山で古墳時代に起こった渋川噴火の理学的年代決定
Other Titles: A scientific age-determination of the Shibukawa eruption from Haruna Volcano during the Kofun period,about 1,500 years ago
Authors: 早川, 由紀夫
ハヤカワ, ユキオ
Hayakawa, Yukio
中村, 賢太郎
ナカムラ, ケンタロウ
Nakamura, Kentaro
藤根, 久
フジネ, ヒサシ
Fujine, Hisashi
伊藤, 茂
イトウ, シゲル
Ito, Shigeru
廣田, 正史
ヒロタ, マサシ
Hirota, Masashi
小林, 紘一
コバヤシ, コウイチ
Kobayashi, Koichi
Keywords: radiocarbon wiggle matching
Haruna Volcano
Shibukawa eruptio
Issue Date: 18-Feb-2015
Publisher: 群馬大学教育学部
Citation: 群馬大学教育学部紀要. 自然科学編. 2015, 63, p.35-39
Abstract: Radiocarbon wiggle matching method was applied for precise dating of a tephra which was designated as one of the important key beds for archaeology. The FA tephra is a pyroclastic deposit from the Shibukawa eruption of Haruna Volcano during the Kofun period of Japan. The age of FA has been investigated using archaeological remains and also historical records of Japan and China. It has been estimated roughly as early 6th century. Three tumbled logs were found being buried in the tephra whose thickness was about 4 m. The logs were cut in many groups with five tree rings and every two groups were sampled for􌛋􌛎C measurement. As these trees were thought to have the same age from the occurrence,all data were used for wiggle matching analysis. The age of the outermost tree ring group is determined as AD 491-500(AD 497/+3/-6).
URI: http://hdl.handle.net/10087/9916
ISSN: 00175668
Appears in Collections:第63巻 (2015)

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