F. Bea, 1996. "Controls on the trace element composition of crustal melts", The Third Hutton Symposium on the Origin of Granites and Related Rocks, M. Brown, P.A. Candela, D.L. Peck, W.E. Stephens, R.J. Walker, E-an Zen
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The behaviour of trace elements during partial melting depends primarily on their mode of occurrence. For elements occurring as trace constituents of major phases (e.g. Li, Rb, Cs, Eu, Sr, Ba, Ga, etc.), slow intracrystalline diffusion (D ≈ 10−16 cm2 s−1) at the temperature range of crustal anatexis causes all effective crystal-melt partition coefficients to have a value close to unity and impedes further melt-restite re-equilibration. Usually, therefore, the trace element composition of crustal melts simply depends on the mass balance between the proportion and composition of phases that melt and the proportion and composition...