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  1. F300 宇宙地球環境研究所
  2. F300b 紀要
  3. 名古屋大学年代測定研究
  4. 2

火山体崩壊に起因する火山災害軽減のためのパイロット研究 : 木片の14C年代測定と火山岩塊のSr同位体比からみた前橋泥流の時空分布

https://doi.org/10.18999/nagubc.2.35
https://doi.org/10.18999/nagubc.2.35
39769f09-12a7-497e-a5ca-dd13891c7f4a
名前 / ファイル ライセンス アクション
035-039_2017.pdf 035-039_2017.pdf (1.6 MB)
Item type 紀要論文 / Departmental Bulletin Paper(1)
公開日 2018-08-20
タイトル
タイトル 火山体崩壊に起因する火山災害軽減のためのパイロット研究 : 木片の14C年代測定と火山岩塊のSr同位体比からみた前橋泥流の時空分布
言語 ja
その他のタイトル
その他のタイトル A pilot study for the mitigation of volcanic hazard caused by collapse of volcano : Maebashi mudflow deposit in time and space estimated from 14C ages of wood blocks and Sr isotope ratios of volcanic blocks
言語 en
著者 佐藤, 興平

× 佐藤, 興平

WEKO 79144

ja 佐藤, 興平

Search repository
南, 雅代

× 南, 雅代

WEKO 79145

ja 南, 雅代

Search repository
中村, 俊夫

× 中村, 俊夫

WEKO 79146

ja 中村, 俊夫

Search repository
武者, 巌

× 武者, 巌

WEKO 79147

ja 武者, 巌

Search repository
柴田, 賢

× 柴田, 賢

WEKO 79148

ja 柴田, 賢

Search repository
Sato, Kohei

× Sato, Kohei

WEKO 79149

en Sato, Kohei

Search repository
MIinami, Masayo

× MIinami, Masayo

WEKO 79150

en MIinami, Masayo

Search repository
Nakamura, Toshio

× Nakamura, Toshio

WEKO 79151

en Nakamura, Toshio

Search repository
Musha, Iwao

× Musha, Iwao

WEKO 79152

en Musha, Iwao

Search repository
Shibata, Ken

× Shibata, Ken

WEKO 79153

en Shibata, Ken

Search repository
アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
キーワード
主題Scheme Other
主題 Maebashi mudflow deposit
キーワード
主題Scheme Other
主題 14C age
キーワード
主題Scheme Other
主題 87Sr/86Sr ratio
キーワード
主題Scheme Other
主題 Asama volcano
キーワード
主題Scheme Other
主題 Paleolithic age
キーワード
主題Scheme Other
主題 前橋泥流
キーワード
主題Scheme Other
主題 14C 年代
キーワード
主題Scheme Other
主題 87Sr/86Sr 比
キーワード
主題Scheme Other
主題 浅間火山
キーワード
主題Scheme Other
主題 旧石器時代
抄録
内容記述 Age of the Maebashi mudflow deposit, currently estimated to be 24,000 BP, was re-evaluated by AMS-14C dating of a wood specimen from an outcrop on the Tone River bank. The specimen yielded 22,570±60 BP (±1σ). The calibrated age was 27,180−26,589 cal BP (±2σ) and 3000 years older than the previous estimate. Origin and distribution of the Maebashi mudflow deposit were identified by 87Sr/86Sr ratios of volcanic blocks within the mudflow deposits, in comparison with 87Sr/86Sr data for surrounding volcanoes. The mudflow was generated by the collapse of Asama volcano, flowed down along the Agatsuma and Tone rivers, and deposited in the wide area around Maebashi and Takasaki. Distribution of the Stone Age remains appears to reflect the extent of the Maebashi mudflow deposit.
言語 en
内容記述タイプ Abstract
抄録
内容記述 約2.4万年前とされてきた前橋泥流につき,利根川河岸の露頭から採取した木片のAMS-14C年代を高精度で測定し,22,570±60BP(±1σ)を得た.暦年較正した年代は27,180−26,589calBP(±2σ)となり,従来の推定より3000年ほど古いとの結論が得られた.また,泥流に含まれる安山岩質火山岩塊の87Sr/86Sr比を測定して,泥流の起源と広がりを検討した.その結果,前橋−高崎地域の平坦部のほぼ全域に浅間山起源の泥流が広がっており,その分布と泥流が流下した旧石器時代の遺跡の分布とが相関している可能性があるとの見通しが得られた.
言語 ja
内容記述タイプ Abstract
出版者
言語 ja
出版者 名古屋大学宇宙地球環境研究所
言語
言語 jpn
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ departmental bulletin paper
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
ID登録
ID登録 10.18999/nagubc.2.35
ID登録タイプ JaLC
書誌情報 ja : 名古屋大学年代測定研究

巻 2, p. 35-39, 発行日 2018-03-31
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