2014 Fiscal Year Final Research Report
Chemical transport of fluid-mobile elements in the crustal magmatic system
| Project/Area Number |
25887006
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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/Economic geology
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| Research Institution | Yamagata University |
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Principal Investigator |
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| Project Period (FY) |
2013-08-30 – 2015-03-31
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| Keywords | 塩素 / 脱ガス / 拡散 / マグマ |
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| Outline of Final Research Achievements |
Diffusivity of chlorine in granitic melt was measured experimentally at 650-950 degC and 30-120 atm. The diffusion experiments were carried out by dissolving chlorine in granitic melt in the atmosphere of pure chlorine or H2O-Cl mixture. The results showed that the diffusivity determined in this study was three orders of magnitude smaller than those measured in Bai and Koster van Groos (1994) who soaked granitic glass in molten NaCl or NaCl aqueous fluids. The difference between my results and theirs are considered to be due to sodium infiltration: sodium cuts the silicate network to increase the diffusivity.
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| Free Research Field |
実験火山学，実験岩石学
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