Doklady Earth Sciences

, Volume 472, Issue 2, pp 205–207 | Cite as

Complexing–precipitating geochemical barriers

Geochemistry
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Abstract

New types of geochemical barriers on which chemical elements are immobilized as a result of combined complex formation and precipitation of barely soluble mineral phases are examined. A significant concentration of major components (Fe, Al) forming more stable complexes than an immobilized component X in the material is a necessary condition for this type of geochemical barriers. Filtration of the solution through a geochemical barrier is accompanied by substitution of X in the complex with a major component. As a result, the activity of X in the free state increases, and one barely soluble mineral phase or another of the component X precipitates when the state of saturation is achieved.

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References

  1. 1.
    A. I. Perel’man, Geochemistry of Landscape (Geografgiz, Moscow, 1961) [in Russian].Google Scholar
  2. 2.
    R. Garrels and Ch. L. Christ, Solutions, Minerals, and Equilibria (Harper & Row, New York, 1965).Google Scholar
  3. 3.
    R. A. Robinson and R. H. Stokes, Electrolyte Solutions (Butterworths, London, 1959).Google Scholar
  4. 4.
    Yu. Yu. Lur’e, Analytic Chemistry. Handbook (Khimiya, Moscow, 1989) [in Russian].Google Scholar

Copyright information

© Pleiades Publishing, Ltd. 2017

Authors and Affiliations

  1. 1.Moscow State UniversityMoscowRussia

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