中央構造線活断層系:伊予断層の変位地形

• 後藤 秀昭

  広島大学文学部地理学教室

書誌事項

タイトル別名

• Fault morphology of the Iyo Fault, the Median Tectonic Line Active Fault System
• チュウオウ コウゾウセン カツダンソウケイ イヨ ダンソウ ノ ヘンイ チケイ

抄録

In this paper, we investigated the various fault features of the Iyo fault and depicted fault lines on detailed topographic map. The results of this paper are summarized as follows; 1) Distinct evidence of the right-lateral movement is continuously discernible along the Iyo fault.2) Active fault traces are remarkably linear suggesting that the angle of fault plane is high.3) The Iyo fault can be divided into four segments by jogs between left-stepping traces.4) The mean slip rate is 1.3∼1.6 mm/yr. laterally, and is 0.17∼0.2 m m/yr. vertically.5) Offset stream ratio a: D/L, where D is horizontal displacement and L is length of th e river upstream from the fault, is 0.55∼0.09 for the Iyo fault. Based on the offset stream ratio, the mean slip rate of the Iyo fault is roughly estimated 1∼5 mm/yr. and the fault is classified as class A in activity.

収録刊行物

• Active Fault Research

  Active Fault Research 1996 (14), 28-38, 1996

  Japanese Society for Active Fault Studies

キーワード

• 中央構造線
• 活断層
• 伊予断層
• 断層変位地形

詳細情報

• CRID: 1390001204429129728
• NII論文ID: 130003355644
• NII論文ID: 10003624301
• NII書誌ID: AN10157356
• DOI: 10.11462/afr1985.1996.14_28
• NDL書誌ID: 4019732
• ISSN: 09181024
• Web Site: http://ir.lib.hiroshima-u.ac.jp/00025448
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4019732
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • IRDB
  • NDL
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可