Temporal changes in the internal stresses and pore pressures in a large-scale submarine mass transport deposit

• 資料種別: 記事
• タイトル: Temporal changes in the internal stresses and pore pressures in a large-scale submarine mass transport deposit
• 著者・編者: Makoto Otsubo; Hajime Naruse; Ayumu Miyakawa
• 出版事項: 日本 : Springer Nature
• 出版年月日等: 2018-10-01
• 出版年（W3CDTF）: 2018-10-01
• タイトル（掲載誌）: Progress in earth and planetary science
• 巻号年月日等（掲載誌）: 5(59)
• 掲載巻: 5(59)
• ISSN（掲載誌）: 2197-4284
• ISSN-L（掲載誌）: 2197-4284
• 本文の言語コード: eng
• DOI: 10.1186/s40645-018-0219-0; https://doi.org/10.1186/s40645-018-0219-0
• 国立国会図書館永続的識別子: info:ndljp/pid/11190354; https://dl.ndl.go.jp/pid/11190354
• コレクション（共通）: 障害者向け資料
• コレクション（障害者向け資料：レベル1）: テキストデータ
• コレクション（個別）: 国立国会図書館デジタルコレクション > 電子書籍・電子雑誌 > その他; https://dl.ndl.go.jp/collections/B00035
• 収集根拠: オンライン資料収集制度
• 受理日（W3CDTF）: 2018-11-26T20:20:20+09:00
• 保存日（W3CDTF）: 2018-11-26
• 記録形式（IMT）: application/pdf
• オンライン閲覧公開範囲: 国立国会図書館内限定公開
• デジタル化資料送信: 図書館・個人送信対象外
• 遠隔複写可否（NDL）: 可
• 掲載誌（URI）: https://progearthplanetsci.springeropen.com/articles
• 掲載誌（国立国会図書館永続的識別子）: info:ndljp/pid/11018906; https://dl.ndl.go.jp/pid/11018906
• 連携機関・データベース: 国立国会図書館 : 国立国会図書館デジタルコレクション; https://dl.ndl.go.jp

• 要約等: We examined the temporal changes in the internal stresses and pore fluid pressures of a submarine mass transport deposit (MTD) in the Akkeshi Formation of the Upper Cretaceous–Paleocene Nemuro Group, eastern Hokkaido Island, Japan. We first analyzed previous paleostress field results from meso-scale faults in the MTD blocks, which indicated two phases during the evolution of the debris flow: phase I, radial spreading of the flow body during downslope movement; phase II, the flow body underwent compression during deposition on the basin plain. We also estimated the pore fluid pressure ratio from the fault orientation distribution. There was a large increase in the pore fluid pressure ratio during the transition from phase I to phase II that continued to rise during the initial stage of phase II and then decreased in its latter stages, whereas the maximum horizontal compressive stress increased throughout phase II. This variation in pore fluid pressure relates to the dynamics and evolution of the debris flow, where the clasts in the central part of the flow were supported by the excess pore pressure due to the compression of the debris flow as the flow head decelerated. Although pore fluid pressure plays a critical role in the dynamics of debris flows, there was no previous methodology to quantify both the stress fields and pore fluid pressures in large debris flows and their resultant MTDs. Our results implemented for outcrop studies imply that meso-scale faults in MTDs can provide clues to better understand these paleoflow mechanisms.
• DOI: 10.1186/s40645-018-0219-0; https://doi.org/10.1186/s40645-018-0219-0
• オンライン閲覧公開範囲: インターネット公開
• 著作権情報: © The Author(s). 2018; This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
• 関連情報（URI）: http://hdl.handle.net/2433/234662; http://id.ndl.go.jp/digimeta/11190354; https://dl.ndl.go.jp/pid/11190354; http://link.springer.com/content/pdf/10.1186/s40645-018-0219-0.pdf; http://link.springer.com/article/10.1186/s40645-018-0219-0/fulltext.html
• 参照: Effect of hydraulic and mechanical characteristics of sediment layers on water film formation in submarine landslides; https://cir.nii.ac.jp/crid/2051433317028482944
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• 連携機関・データベース: 国立情報学研究所 : CiNii Research; https://cir.nii.ac.jp/
• 提供元機関・データベース: 学術機関リポジトリデータベース; https://irdb.nii.ac.jp; 雑誌記事索引データベース; https://ndlsearch.ndl.go.jp; Crossref; https://www.crossref.org; CiNii Articles; 科学研究費助成事業データベース; https://kaken.nii.ac.jp/ja
• 書誌ID（NDLBibID）: 11190354; http://id.ndl.go.jp/bib/11190354
• NII論文ID: 120006528361