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  1. 極地研刊行誌
  2. 英文誌
  3. 極域地学
  4. Proceedings of the NIPR Symposium on Antarctic Geosciences (ISSN 0914-2029)
  5. No.5 (Sep. 1991)

SUBMARINE CANYONS IN THE BELLINGSHAUSEN AND RIISER-LARSEN SEAS AROUND ANTARCTICA

https://doi.org/10.15094/00002690
https://doi.org/10.15094/00002690
2d59020c-f8fb-4554-8b55-90e46380d65e
名前 / ファイル ライセンス アクション
KJ00002368273.pdf KJ00002368273 (3.8 MB)
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Item type 紀要論文(ELS) / Departmental Bulletin Paper(1)
公開日 1991-09-01
タイトル
タイトル SUBMARINE CANYONS IN THE BELLINGSHAUSEN AND RIISER-LARSEN SEAS AROUND ANTARCTICA
言語
言語 eng
資源タイプ
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
資源タイプ departmental bulletin paper
ID登録
ID登録 10.15094/00002690
ID登録タイプ JaLC
ページ属性
内容記述タイプ Other
内容記述 P(論文)
論文名よみ
その他のタイトル SUBMARINE CANYONS IN THE BELLINGSHAUSEN AND RIISER-LARSEN SEAS AROUND ANTARCTICA
著者名よみ カガミ, ヒデオ

× カガミ, ヒデオ

カガミ, ヒデオ

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クラモチ, ヒロミ

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クラモチ, ヒロミ

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シマ, ヨウコ

× シマ, ヨウコ

シマ, ヨウコ

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著者名(英) KAGAMI, Hideo

× KAGAMI, Hideo

en KAGAMI, Hideo

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KURAMOCHI, Hiromi

× KURAMOCHI, Hiromi

en KURAMOCHI, Hiromi

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SHIMA, Yoko

× SHIMA, Yoko

en SHIMA, Yoko

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著者所属(英)
言語 en
値 Faculty of Science, Josai University
著者所属(英)
言語 en
値 Department of Geology, Kochi University
著者所属(英)
言語 en
値 Department of Geology, Kochi University
抄録(英)
内容記述タイプ Other
内容記述 Submarine canyons in the Bellingshausen and Riiser-Larsen Seas are compared. It is pointed out that the canyons in the Bellingshausen Sea are so incorporated to build up a deep-sea fan or an apron slope, that they develop dominantly on an upper fan at the upper continental rise and disappear apparently on a lower fan at the lower continental rise. The deep-sea fan or the apron slope was formed by supply of the great amount of sediments from the shelf area due probably to grounded ice sheets on the continental margin. On the contrary, the canyons in the Riiser-Larsen Sea have a large-scale entrenching throughout their course and construct a canyon-deep sea channel complex. This is caused by thermal cooling effect of lithosphere to deepen the old ocean basin. Buried canyons observed on the seismic profiles indicate that activation of the canyon formation was triggered by advancement of the Antarctic ice sheet toward the outer edge of the continental shelf sometime between 4 and 7 Ma BP. The meltwater and eroded sediments by the extended grounded ice sheet provided a potential source for turbidity currents and debris flows into the canyons, thus causing rigorous development of the canyon.
雑誌書誌ID
収録物識別子タイプ NCID
収録物識別子 AA1072335X
書誌情報 Proceedings of the NIPR Symposium on Antarctic Geosciences

巻 5, p. 84-98, 発行日 1991-09
出版者
出版者 National Institute of Polar Research
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