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- 植木 岳雪
- 東京都立大学大学院理学研究科
書誌事項
- タイトル別名
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- Timing of Large-scale Ridge-moving Landslides around Aigawa, Northen Nagano Prefecture, Central Japan, and Their Tectonic Implications.
- ナガノケン ホクブ ヤサカムラ アイガワ シュウヘン ノ ヂスベリ チケイ ノ ケイセイ ジキ ダイキボ ナ オネ イドウガタ ヂスベリ ノ ハッセイ ト ソノ テクトニック ナ イギ
- 大規模な尾根移動型地すべりの発生とそのテクトニックな意義
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This study documents the nature of large-scale ridge-moving landslides around Aigawa, in the northern part of Nagano Prefecture, central Japan, to determine the history of the northern segment of the active fault system of the Itoigawa-Shizuoka Tectonic Line. Blocky fragments of the Omachi APm Tephra Beds deformed by landslide movement were observed in a small depression of a landslide mound underlain by the well-fractured Omine Welded Tuff, and overlain by the mantlebedding layer of the Tateyama-D Tephra. This stratigraphy and the eruption ages of these tephras indicate that the large-scale ridge-moving landslides occurred within the range 0.30-0.40 to 0.12Ma. The timing of the large-scale ridge-moving landslides suggests that the northern segment of the active fault system of the Itoigawa-Shizuoka Tectonic Line was tectonically active then, and this would account for the relative height of the fault scarp which generated the landslides.
収録刊行物
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- 第四紀研究
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第四紀研究 40 (5), 393-402, 2001
日本第四紀学会
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詳細情報 詳細情報について
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- CRID
- 1390282681472024320
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- NII論文ID
- 10007431475
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- NII書誌ID
- AN0034136X
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- ISSN
- 18818129
- 04182642
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- NDL書誌ID
- 5932517
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
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- 抄録ライセンスフラグ
- 使用不可