書誌事項
- タイトル別名
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- Tectonic Landform and Holocene Faulting History of the Sekidosan Fault along the Southeastern Margin of the Ouchigata Plain, Central Japan
- オウチガタ ヘイヤ ナントウエン セキドウサン ダンソウ ノ ダンソウ ヘンイ チケイ ト カンシン セイ ニ オケル ダンソウ カツドウシ
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The Sekidosan fault is a northeast-trending, 33-km-long active reverse fault located along the southeastern margin of the Ouchigata Plain, an elongated tectonic lowland whose northwestern and southeastern sides are bounded by reverse faults. We re-examined precise locations of the surface traces of the Sekidosan fault by interpreting large-scale aerial photographs, and then carried out topographic profiling across the tectonic scarps. Among the 34 profiles, 15 profiles are interpreted to represent the vertical offset associated with the most recent surface-faulting event, which enable us to reconstruct the vertical slip distribution during the most recent surface-faulting event along the middle and northeastern parts of the Sekidosan fault. The amount of vertical offset along the middle part is fairly constant (23 m) along the trace. In contrast, the amount of vertical offset along the northeastern part is smaller (12 m) and tapers off toward the northeastern end. In addition, the amount of vertical offset along other 10 profiles nearly equals to twice the amount of vertical offset during the most recent surface-faulting event, indicating that the amount of offset at individual sites along the middle and northeastern parts of the Sekidosan fault was almost the same during the latest and penultimate surface-faulting events. Subsurface geologic structures and radiocarbon ages obtained by a drilling survey at Nakagawa-Udono site, Hakui City, suggest that a surface-faulting event occurred between 6000 and 4000 years B.P. and this event probably occurred at approximately 4000 years B.P.
収録刊行物
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- 地学雑誌
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地学雑誌 114 (1), 21-40, 2005
公益社団法人 東京地学協会
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詳細情報 詳細情報について
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- CRID
- 1390282679205814784
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- NII論文ID
- 10017473615
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- NII書誌ID
- AN00322536
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- ISSN
- 18840884
- 0022135X
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- NDL書誌ID
- 7316005
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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
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可
