New tools and new scales to study peridotites: Non-traditional stable isotopes in the mantle

The studies of non-traditional stable isotopes (Li, K, Mg, Si, Ca, Ti, V, Cr, Fe, Ni, Cu, Zn, Se, Ru, Te, Tl) in geosciences have rapidly developed in the last two decades and are now an important part of the geochemical toolbox used to characterize mantle rocks and understand mantle processes and the origin of mantle reservoirs. These isotopes are particularly useful to examine the interaction of mantle peridotites with various melts and fluids, trace crustal components recycled to the mantle as well as examine inter-mineral mass transfer due to changes in temperature, pressure, fluid and redox regime.