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Isotopic Composition of Water in the Unsaturated and Saturated Zones

  • V. I. Ferronsky
  • V. A. Polyakov
Chapter

Abstract

On the basis of experimental data, it has been pointed out that the isotopic composition of shallow groundwaters, which are replenished by infiltration of atmospheric precipitation through the unsaturated zone, is characterized on average by the heavy isotopes of typical precipitation of a given region. Under certain conditions, there are some differences in isotopic ratios for the two types of water mentioned above. This is explained by the fact that precipitation in the spring–summer season is partially and often completely re-evaporated from the Earth’s surface and from the unsaturated zone both directly and due to transpiration of moisture by plants.

Keywords

Isotopic Composition Shallow Groundwater Unsaturated Zone Thermal Water Recharge Area 
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Copyright information

© Springer Science+Business Media B.V. 2012

Authors and Affiliations

  1. 1.Water Problems Institute of the Russian Academy of SciencesMoscowRussia
  2. 2.Isotope LaboratoryInstitute of Hydrogeology and Engineering GeologyMoscowRussia

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