2012 Fiscal Year Final Research Report
Tectonic geomorphologic studies on the uplift of coastal area and its mechanism
| Project/Area Number |
21501006
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Geography
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| Research Institution | Toyo University |
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Principal Investigator |
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| Project Period (FY) |
2009 – 2012
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| Keywords | 変動地形 / 海成段丘 / 活断層 |
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| Research Abstract |
Tectonic geomorphic features are carefully analyzed in some areas where long-wave and small－amplitude relieves apparently prove long-term continuous uplifting. However, I observed wide flexural scarps on marine terraces surfaces, height changes of the former shorelines indicating distinct tilting and emerged wave-cut benches indicative of abrupt relative sea-level changes. These tectonic features have been convincingly owing to the activity of marine active faults with episodic crustal uplifts. Active faults on seafloor along plate boundary are resultants of repeated large earthquakes as those on land. It is very important to depict distribution and geometry of active faults based on tectonic geomorphologic method.
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