2017 Fiscal Year Final Research Report
Proposal of gravitational exploration for effective use of gravity gradiometer data and its basic research
| Project/Area Number |
15K14274
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Earth system and resources engineering
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| Research Institution | University of Toyama |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
Morikawa Hitoshi 東京工業大学, 大学院総合理工学研究科, 教授 (60273463)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | 重力探査 / 重力偏差 / 重力偏差テンソル / 地下構造 / 資源探査 / 堆積盆地 / 活断層 |
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| Outline of Final Research Achievements |
In this study, a new technique for estimating subsurface structure by gravity vectors (gx, gy, gz) was developed and applied to actual data in central Kyushu. The shape of each sedimentary basin was estimated clearly by this technique. In addition, estimation technique of fault dip using gravity gradient tensor was studied. Wall dip of caldera walls, the dip of tectonic lines distributed in the central Kyushu and the source fault dip of the 2016 Kumamoto earthquake were estimated by the method. Results obtained by this technique were harmony with real subsurface structures observed by other techniques and surveys.
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| Free Research Field |
テクトニクス
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