Development of new isotope proxies

The advancement and development of Multi-Collector ICPMS some 20 years ago offered the possibility to measure isotopic compositions of almost the complete periodic table of elements with the introduction of the so-called non-traditional stable isotope systems. The potential to use different elements and their isotope variations as proxies for geological processes is still under exploration. Recent findings of exciting new isotope variations even in high-T environments like Earth’s interior demand ongoing analytical development to increase accuracy and precision.