Volume 43. Applied Isotope Hydrogeology

1st Edition

A Case Study in Northern Switzerland



In 1980, Nagra, the Swiss National Cooperative for the Storage of Radioactive Waste, began a comprehensive field investigation programme to assess the feasibility and safety of a repository for the final disposal of high-level radioactive waste in northern Switzerland. An international team of scientists has carried out a comprehensive study on the isotope hydrogeology of deep groundwaters. One of the major implications of this work pertains to the storage of radioactive waste. The study goes far beyond an in-depth regional study as it draws together the results of diverse techniques, many of which have been re-evaluated or further developed.

This book presents in great detail the results of one of the most comprehensive isotope hydrology studies ever undertaken.

Table of Contents

Preface. Contents. Tables. Illustrations. 1. Introduction. Overview of this Report. Acknowledgements. Scope of Data Presented. Reporting of Isotopic Data. Regional Geology and Stratigraphy. Hydrogeology and Hydrochemistry. 2. Limitations of Sampling and Analytical Procedures. Contamination of Samples. Comparison of Carbon Isotope Results From Conventional and AMS Measurements. Evaluation of Replicate Analytical Data. 3. Infiltration Conditions. Isotopic Composition of Modern Recharge. Isotopic Composition of Groundwater. Noble Gases in Groundwater. 4. Dating by Radionuclides. Introduction. Overview of the Sources of the Individual Isotopes. Detection of Young Water Components With 3H and 85Kr. 39AR Results for Waters from Sedimentary Formations. 5. Carbonate Isotopes. Overview of Groundwater Carbonate Evolution. Age Interpretations of Dissolved Carbonate Isotopes. Isotopic Composition of Carbonate Minerals and Water. 6. Isotopes Formed by Underground Production. Introduction. Chlorine-36. Argon-39 and Argon-37. 3HE and 4HE. 40Ar/36Ar Ratios. 7. Formation-Specific Characteristics of Groundwaters. Sulphur and Oxygen Isotopes in Sulphate and Sulphide. Strontium Isotopes in Groundwaters and Minerals. Uranium and Thorium-Series Nuclides. 8. Synthesis of Isotope Results. Tertiary and Malm. Dogger, Lias, and Keuper. Muschelkalk. Buntsandstein, Permian and Crystalline. Inter-Aquafer and Regional Flow. Recommended Further Studies. 9. Summary Analytical Results and Interpretative Methods. Hydrogeological and Hydrochemical Conclusions. 10. Literature Cited. Appendix. Maps.


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© 1991
Elsevier Science
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About the editors


@qu:Whilst the documented results relate to the particular study, there are many charts and tables on physical constants of isotopes, corrective factors in use etc. which make the publication valuable to workers in the field. @source:Australian Mineral Foundation Inc.