2010 Fiscal Year Final Research Report
Paleointensity measurements of oceanic basalt by using a new method
| Project/Area Number |
21840023
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Single-year Grants |
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| Research Field |
Solid earth and planetary physics
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| Research Institution | Kumamoto University |
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Principal Investigator |
MOCHIZUKI Nobutatsu Kumamoto University, 大学院・先導機構, 特任助教 (60422549)
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| Project Period (FY) |
2009 – 2010
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| Keywords | 海洋底岩石 / 古地磁気強度 |
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| Research Abstract |
I have prepared experimental equipments for the paleointensity measurement and finished setting up of them. I took part in research cruises at the Southern Mariana Trough, in which we collected cores and block samples of basalt from the seafloor. Thermal demagnetizations on samples from the cores show that typical blocking temperatures are 200-300 and 580 degree. Inclinations of the directions are similar to that of the geomagnetic field. These results suggest that the low blocking temperature component is dominated by thermal remanent magnetization of primary one and paleointensity measurements should be applied to the component.
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