Halogen Isotope Studies in Historical Perspective and Future Outlook

Abstract

In 2014 it was 30 years ago that the first major work on chlorine isotopes was published (Kaufmann 1984). In his thesis Ronald Kaufmann described the first method by which it was possible to measure the small natural variations of chlorine stable isotopes that appear in groundwaters and applied this technique to start to understand the chloride hydrological cycle.