fig10.htm

Figure 10. Chondrite-normalized trace element distribution in the products of the partial (a, c) and fractional (b, d) melting of enriched metasomatized mantle having a composition of amphibole-bearing spinel peridotite Ol0.59 + Opx0.21 + Cpx0.10 + Spl0.05 + Amph0.05. The thick line is The average composition of primary magmas in the Kola alkaline province. The shaded line denotes the compositions of the alkaline-ultramafic and phonolite series. The thin lines are the model compositions of the melts and complementary restites (broken lines) for the 0.1-5% degrees of melting. The normalizing factors used were after Evensen et al. [1978] for these and after Hofmann [1988] for the other elements.


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