The temperature-sensitive exchange of Mg between plagioclase and clinopyroxene was studied experimentally. The partitioning of Mg between plagioclase and clinopyroxene was determined The diffusion of Mg in plagioclase was described by:

D(m2/s) = 1.25 x 10-4exp[-320.9(kJ/mol)/RT]

K.Faak, S.Chakraborty, L.A.Coogan: Geochimica et Cosmochimica Acta, 2013, 123, 195-217