We explore the so-called „non-traditional“ stable isotopes, of which the minor shifts by isotope fractionation have been made detectable by multicollector ICP-mass spectrometry. These are for example the elements lithium, magnesium, silicon, calcium or iron. • Why do isotopes shift their relative abundances? Principles of mass-dependent isotope fractionation. Isotope fractionation during precipitation, mineral dissolution, weathering, uptake by higher plants, biomedical applications, the hydrosphere, and formation of the planets. Basics of MC-ICP-mass spectrometry: sample preparation, ionisation, ion optics and mass separation, detection systems, data evaluation.

Lectures will deal with applications (isotope fractionation in nature: rocks, weathering, rivers, plants, human nutrition)

Practicals will be daily and will use sophisticated clean labs and mass spectrometry equipment (multicollector ICP Ms) at GFZ Potsdam. Participants will do a small scientific project.

The course will take place at Earth surface Geochemistry at GFZ Potsdam. Each day 2h Lecture, 2h Lab practical, 2h Lecture, 2h Lab Practical

Zusätzliche Informationen

Entrance exam in eraly December 2021 at GFZ Potsdam; the date will be announced to those registered. Knowledge of isotope geochemistry and stable isotopes is required. Please also register at dettlaff@gfz-potsdam.de by 1 November 2021.