Schleswig/Kiel. Researchers from the ROOTS Cluster of Excellence and LEIZA find a method for correcting nutritional errors in carbon dating. The study corrects the dating of an important Stone Age burial site in western Russia. The new approach can eliminate a general source of error in carbon-based dating. The ROOTS Cluster of Excellence in Kiel and the Leibniz-Zentrum für Archäologie (LEIZA) in Mainz are leading the study.