Abstract— The paper presents experimental data on fluorine leaching from igneous rocks (dacite, rhyodacite, and trachyrhyolite) and greisen with distilled water and 0.01 M HCl, CH 3 COONa, NaHCO 3 , and Na 2 CO 3 solutions. Fluorine leaching is proved to be proportional to its content in the rocks and depends on pH of the aqueous solution: the equilibrium concentrations of fluoride are minimal in the near-neutral solutions and increase in acidic and alkaline ones. The spatial variability of fluorine concentrations in waters of the hypergenesis zone is likely controlled primarily by the petrographic composition of rocks and processes that determine pH of the aqueous solutions.

中文翻译：

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火成岩中氟动员的实验研究

摘要—本文提供了用蒸馏水和 0.01 M HCl、CH 3 COONa、NaHCO 3 和 Na 2 CO 3 溶液从火成岩（英安岩、流纹英长岩和粗纹纹石）和灰岩中浸出氟的实验数据。事实证明，氟浸出与其在岩石中的含量成正比，并取决于水溶液的 pH 值：氟的平衡浓度在近中性溶液中最小，而在酸性和碱性溶液中会增加。增生区水中氟浓度的空间变异性可能主要受岩石的岩相成分和决定水溶液 pH 值的过程控制。