ケイ酸塩メルトに対する希ガス溶解度の研究

• 柴田 智郎

  北海道立地質研究所

書誌事項

タイトル別名

• Studies of noble gas solubility in silicate melts
• 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

抄録

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 M_0.5Al⁴⁺ as non-bridging oxygen. This means that the solution of noble gas in silicate melt is mainly dependent on the network of SiO₄.

収録刊行物

• 地球化学

  地球化学 38 (2), 85-93, 2004

  一般社団法人日本地球化学会

キーワード

• noble gas
• solubility
• silicate melt
• non-bridging oxygens
• network of SiO₄

詳細情報

• CRID: 1390282680717982336
• NII論文ID: 110008680070
• NII書誌ID: AN00141280
• DOI: 10.14934/chikyukagaku.38.85
• ISSN: 21885923
• ISSN: 03864073
• NDL書誌ID: 6988186
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6988186
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可