2011 Fiscal Year Final Research Report
Experimental studies on formation and dissociation of methane hydrates under ocean floor
| Project/Area Number |
21540498
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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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 | Meiji University |
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Principal Investigator |
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| Project Period (FY) |
2009 – 2011
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| Keywords | メタンハイドレート / 結晶成長 / 形態形成 / 凍上現象 |
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| Research Abstract |
All patterns of natural gas hydrates found under marine sediments were first reproduced by model experiments using the mixture of THF water solution and glass beads. The hydrate patterns were found to be classified in a diagram as a function of growth rate of hydrates and the mixing ratio between two diameters of glass beads. Qualitative model of formation mechanism of hydrate patterns were proposed. In addition, the diffusion effects of guest molecules were clarified by the experiments using dilute THF water solution in glass beads and the experiments in THF/water concentration boundary.
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