水-岩石相互作用の生成物としてのアルリカ性鉱泉水

• 一国 雅巳

  東京工業大学大学院総合理工学研究科

• 鈴木 励子

  東北大学教養部

• 鶴見 実

  東京工業大学大学院総合理工学研究科

書誌事項

タイトル別名

• Alkaline spring waters as a product of water-rock interaction
• 水-岩石相互作用の生成物としてのアルカリ性鉱泉水
• ミズ ガンセキ ソウゴ サヨウ ノ セイセイブツ トシテノ アルカリセイコウ

抄録

This paper describes the chemistry of alkaline spring waters from the Abukuma mountain area, Fukushima Prefecture. The waters are formed by reaction of rainwater with felsic rocks under a limited CO₂ supply. The data are plotted on a log (aCa²⁺/a²H⁺)-loga_SiO₂ diagram (Fig. 1). Most of samples are located in a small area on the diagram. The waters having a pH higher than 9 are shown to be saturated with respect to calcite, thus suggesting that the alkaline waters represent an equilibrium product of water-felsic rock interaction. Assuming that the waters are in equilibrium with kaolinite-Ca-montmorillonite assemblage, the equilibrium constant for reaction (1) (see text) is estimated to be -11 as pK. However the chemistry of these waters cannot be fully explained by the system kaolinite-Ca-montmorillonite-aqueous solution. An additional Ca mineral, possibly Ca-zeolite, should be included in the system.

収録刊行物

• 地球化学

  地球化学 16 (1), 25-29, 1982

  一般社団法人日本地球化学会

詳細情報

• CRID: 1390001205743451776
• NII論文ID: 110008679724
• NII論文ID: 10003617302
• NII書誌ID: AN00141280
• DOI: 10.14934/chikyukagaku.16.25
• ISSN: 21885923
• ISSN: 03864073
• NDL書誌ID: 2434049
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I2434049
• 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