Detecting subsurface active faults by Ground Penetrating Rada
| Project/Area Number |
22650221
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Geography
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| Research Institution | Hiroshima University |
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Principal Investigator |
NAKATA Takashi 広島大学, 大学院・文学研究科, 名誉教授 (60089779)
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| Co-Investigator(Kenkyū-buntansha) |
OHKURA Hiroshi 広島工業大学, 環境学部, 教授 (20414394)
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| Co-Investigator(Renkei-kenkyūsha) |
GOTO Hideaki 広島大学, 文学研究科, 准教授 (40323183)
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| Project Period (FY) |
2010 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥3,440,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥540,000)
Fiscal Year 2011: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2010: ¥1,100,000 (Direct Cost: ¥1,100,000)
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| Keywords | 活断層 / 地中レーダー / 地下探査 / 伏在断層 / 地下レーダー |
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| Research Abstract |
In order to detect subsurface location of active faults in alluvial lowland where geomorphic interpretation of tectonic features are difficult, we tried to find effective research method by using Ground Penetration Radar system. We could assume subsurface fault from disturbed pattern in the records across active faults ever known. However, it is very difficult to detect location and detailed structure of subsurface active fault correctly if we do not have any information about location of active fault. In the humid zone like Japan, shallow water table frequently disturbed penetration electromagnetic waves into soft sediments, and as a result, GPR may not be a effective tool for searching subsurface active faults except in very rare dry condition such as beach ridges and sand dune.
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Report
(3 results)
Research Products
(2 results)
