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- 池原 研
- 地質調査所海洋地質部
書誌事項
- タイトル別名
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- Large Earthquakes Recorded as Deep-sea Turbidites in the Rishiri Trough, Northernmost Hokkaido.
- ホッカイドウ ホクタンブ リシリ トラフ ノ カイテイ タイセキブツ チュウ ニ タービダイト ト シテ キロク サレタ ジシン
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Two turbidite layers of earthquake origin were found in a sediment core collected from the Rishiri Trough, west of Rebun Island, northernmost part of Hokkaido, Japan. Radiocarbon age determinations using planktonic foraminiferal tests in hemipelagic mud indicated that the depositional ages of each turbidite were 2, 300 14C yrs BP and 5, 500 14C yrs BP, respectively. Therefore, the recurrence interval of the large earthquakes forming the turbidites in this area was estimated to be around 3, 200 years. This interval is longer than that around the Okushiri Ridge (around 1, 000 years), west of Hokkaido near the hypocenter of the 1993 Hokkaido-nansei-oki Earthquake, or that in northern Sakhalin (more than 2, 000 years).
収録刊行物
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- 第四紀研究
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第四紀研究 39 (6), 569-574, 2000
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
- 1390282681471769984
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- NII論文ID
- 10007430463
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- NII書誌ID
- AN0034136X
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- ISSN
- 18818129
- 04182642
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- NDL書誌ID
- 5641245
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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
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- 使用不可