| Project/Area Number |
22840017
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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 |
Petrology/Mineralogy/Science of ore deposit
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| Research Institution | The University of Tokyo |
|---|
Principal Investigator |
HAMANE Daisuke The University of Tokyo, 物性研究所, 特任専門職員 (20579073)
|
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| Project Period (FY) |
2010
|
| Project Status |
Completed (Fiscal Year 2010)
|
| Budget Amount *help |
¥1,625,000 (Direct Cost: ¥1,250,000、Indirect Cost: ¥375,000)
Fiscal Year 2010: ¥1,625,000 (Direct Cost: ¥1,250,000、Indirect Cost: ¥375,000)
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|---|
| Keywords | チタネイト / ダイアモンドアンビルセル / 放射光X線 / 透過型電子顕微鏡 |
|---|
| Research Abstract |
In this study, We investigated the high pressure and temperature phase relation on ABO_3, which B cation consist of 4th group (titanium family), and then was able to obtain a new finding that overturned the common sense of a past high pressure science. Several titanite transformed to the form of AO+ATi_3O_7 and AO+ATi_2O_5 under high pressure. Especially, the phase assemblage of AO+ATi_3O_7 is denser than AO+TiO_2 cotunnite that often predicted as terminal state for ATiO_3 at high pressure. The result of this study will be important for predicting the silicate mineral assemblage in the deep interior of giant planets.
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