Studies of noble gas solubility in silicate melts
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- SHIBATA Tomo
- Geological Survey of Hokkaido
Bibliographic Information
- Other Title
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- ケイ酸塩メルトに対する希ガス溶解度の研究
- 2003年度日本地球化学会奨励賞受賞記念論文 ケイ酸塩メルトに対する希ガス溶解度の研究
- 2003ネンド ニホン チキュウ カガクカイ ショウレイショウ ジュショウ キネン ロンブン ケイ サンエン メルト ニ タイスル キガス ヨウカイド ノ ケンキュウ
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Abstract
Noble gas solubility in liquid is dependent on both interaction energy between solute and solvent and molar volume of noble gas in solvent. The molar volume is more effective on the solubility in silicate melt than the interaction energy. Although ionic porosity (IP) had been considered to control noble gas solubilities, this parameter cannot apply to the solubilities in silicate melts with low IP. We found that noble gas solubilities in silicate melt are correlated with the NBO/Si (non-bridging oxygens per silicon) ratio in wide range of silicate melt composition, independently of nature of network modifying cations. However, solubility data for aluminosilicate melt falls off the correlation line. Although Al3+ is in tetrahedral coordination in aluminosilicate melts with sufficient M+ and M2+ cations for charge-balance, the solubility data can fall on the correlation line if we treat oxygens bonding with MAl4+ or M0.5Al4+ as non-bridging oxygen. This means that the solution of noble gas in silicate melt is mainly dependent on the network of SiO4.
Journal
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- Chikyukagaku
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Chikyukagaku 38 (2), 85-93, 2004
The Geochemical Society of Japan
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Details 詳細情報について
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- CRID
- 1390282680717982336
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- NII Article ID
- 110008680070
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- NII Book ID
- AN00141280
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- ISSN
- 21885923
- 03864073
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- NDL BIB ID
- 6988186
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- CiNii Articles
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- Abstract License Flag
- Disallowed