| Project/Area Number |
26610170
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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 |
Petrology/Mineralogy/Economic geology
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|---|
| Research Institution | The University of Tokyo |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2017-03-31
|
| Project Status |
Completed (Fiscal Year 2016)
|
| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2014: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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| Keywords | 低指数面粒界 / 粒界すべり / 結晶軸選択配向 / 粒界面 / 鉱物 / 形 / 粒界 / 粒子形 / 界面エネルギー |
|---|
| Outline of Final Research Achievements |
Mineral grain shape is controlled by the development of low-index plane grain boundary which is parallel to specific crystallographic plane of the minerals. We showed that the development changes with temperature for olivine. Based on creep experiments of olivine aggregates, we found that the low-index plane grain boundaries are ~3 times easlier to slide compared to general boundaries, which results in crysallographic preferred orientation in the aggregates.
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