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Natural Tracer Profiles Across Argillaceous Formations

The CLAYTRAC Project

image of Natural Tracer Profiles Across Argillaceous Formations

This technical report describes the results of the Nuclear Energy Agency's CLAYTRAC project, in which natural tracer data from nine sites was evaluated to assess potential impacts of disposal of radiological waste in geological repositories. It shows scientific information from numerous sites and applies robust analytical methods to improve the understanding of radionuclide migration and evolution of sites for deep geological disposal. These results improve the understanding of sites, and thus the confidence in safety, for geological disposal of radioactive waste.

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Introduction

Nuclear Energy Agency

The CLAYTRAC project has been launched by the NEA Working Group on the Characterisation, the Understanding and the Performance of Argillaceous Rocks as Repository Host Formations (known as “Clay Club”) at the beginning of 2005. This initiative was motivated by the fact that argillaceous formations are considered as potential hosts of geological repositories for radioactive waste in several countries. A number of sites are currently being investigated, and underground research laboratories are in operation. A growing body of data pertinent to natural tracers in such formations is available, in addition to studies documented in the open scientific literature. 

English

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