Kinetics of the combination between metamorphic/metasomatic reactions and deformation
| Project/Area Number |
24540524
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Petrology/Mineralogy/Science of ore deposit
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| Research Institution | Kitakyushu Museum of Natural History and Human History |
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Principal Investigator |
MORI Yasushi 北九州市立自然史・歴史博物館, その他部局等, その他 (20359475)
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| Co-Investigator(Kenkyū-buntansha) |
NISHIYAMA Tadao 熊本大学, 大学院自然科学研究科, 教授 (10156127)
IKEDA Takeshi 九州大学, 理学研究院, 准教授 (40243852)
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| Research Collaborator |
SHIGENO Miki
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2012: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Keywords | 変成岩 / 交代作用 / 変形作用 |
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| Outline of Final Research Achievements |
This study deals with the combination phenomena of reaction and deformation in rocks. The targets are metasomatism found in serpentinite melange intercalated to high-pressure low-temperature metamorphic belts. Mass balance analysis using the isocon method was applied to estimate the volume changes of fluid and solid phases and the changes of pore-fluid pressure during metasomatism. As a result, the combination phenomena of reaction and deformation were classified into three types: (A) hydraulic fracturing due to increasing pore fluid pressure, (B) reaction-enhanced ductility due to decreasing pore fluid pressure, and (C) decrease of permeability due to increasing solid volume.
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Report
(4 results)
Research Products
(5 results)
