U-Series Nuclides as Tracers in Groundwater Hydrology

The occurrence of the heavy radionuclides in the hydrosphere has become increasingly important in the context of today’s emphasis on the measurement of quality and quantity of water resources. The study of the natural aqueous behaviour of uranium, radium, and the shorter-lived daughters serves both as a background for radioactivity pollution studies, and also as a widely applicable method of tracing movements of the groundwater itself.