2009 Fiscal Year Final Research Report
Ground and underground observation of the magnetic field in mine area and its application
| Project/Area Number |
20760268
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Measurement engineering
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| Research Institution | Tokyo Metropolitan University |
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Principal Investigator |
OKUBO Kan Tokyo Metropolitan University, システムデザイン研究科, 准教授 (90336446)
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| Project Period (FY) |
2008 – 2009
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| Keywords | 磁界観測 / フラックスゲート磁力計 / 地中観測 / 鉱山 / ピエゾ磁気効果 / 地震断層運動 |
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| Research Abstract |
We have observed three components of the geomagnetic field using a pair of fluxgate magnetometers in the Hosokura underground mine in northeast Japan. One of them has been placed at the main gallery ~70m below the ground surface and another in a hole 1m below. By virtue of such highly sensitive magnetometers, we observed the co-seismic magnetic signals accompanied with the fault movement which causes the piezomagnetic effect.
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