Partitioning of transition elements between clinopyroxene and garnet

Abundances of transition elements (Ti, V, Cr, Mn, Fe²⁺, Co, Ni, Cu and Zn) in coexisting clinopyroxene and garnet are used to estimate clinopyroxene/garnet partition coefficients for these elements. The analyzed samples include eclogites, granulites and peridotites. The partition coefficients are sensitive to the major element composition of the mineral phases, although for individual transition elements they correlate with different chemical parameters. The partition coefficients of Ti correlate with the (FeO/MgO)_garnet/(FeO/MgO)_{clinopyroxene} ratio thus suggesting that the partitioning of Ti is a sensitive indicator of the physical (temperature-pressure) conditions of equilibration.