| Project/Area Number |
20740304
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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 |
Petrology/Mineralogy/Science of ore deposit
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| Research Institution | Tohoku University |
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Principal Investigator |
OKAMOTO Atsushi Tohoku University, 大学院・環境科学研究科, 助教 (40422092)
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| Project Period (FY) |
2008 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2009: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2008: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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| Keywords | 水熱反応実験 / 石英 / 石英脈 / シリカ鉱物 / オストワルドの段階則 / 鉱物脈組織 / 流通式反応実験 / クリストバライト / ラマン分光分析 / 析出メカニズム / 核形成 / 反応速度 |
|---|
| Research Abstract |
Fractures play as dominant fluid pathways in the Earth's crust. Mineral veins, that are fractures sealed by minerals (i.e. quartz and calcite) show a variety of microtextures. In this study, we conducted hydrothermal experiments to precipitation of silica minerals under crustal conditions. We clarified that mechanisms and textural developments in precipitation of silica minerals systematically vary depending on Si concentration, minor elements in solutions and rock substrates.
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