Fault morphology of the Iyo Fault, the Median Tectonic Line Active Fault System
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- GOTO Hideaki
- Department of Geography, Hiroshima University
Bibliographic Information
- Other Title
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- 中央構造線活断層系:伊予断層の変位地形
- 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
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Abstract
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.
Journal
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- Active Fault Research
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Active Fault Research 1996 (14), 28-38, 1996
Japanese Society for Active Fault Studies
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Details 詳細情報について
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- CRID
- 1390001204429129728
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- NII Article ID
- 130003355644
- 10003624301
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- NII Book ID
- AN10157356
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- NDL BIB ID
- 4019732
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- ISSN
- 09181024
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- Text Lang
- ja
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- Data Source
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- JaLC
- IRDB
- NDL
- CiNii Articles
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- Abstract License Flag
- Disallowed