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Swiss Journal of Geosciences
Fig. 10 | Swiss Journal of Geosciences

Fig. 10

From: Mid-Cretaceous extensional magmatism in the Alborz Mountains, north Iran; geochemistry and geochronology of Gasht-Masuleh gabbros

Fig. 10

(La/Yb)N vs. (Dy/Yb)N diagram for the Gasht-Masuleh gabbros and mid-Cretaceous basalts (Abrud and Talesh-Lahijan areas). The partial melting curves were calculated using the non-modal aggregated fractional melting model CL = (C0/F) (1-(1-PF/D0)1/P) of Shaw, (1970). The numbers in italics on the model melting curves indicate degree of melting in percent. The modal mineralogies and mineral/melt partition coefficients are from McKenzie and O'Nions (1991a, 1991b) and the melt proportions are from Thirlwall et al., (1994). The primitive and depleted mantle source compositions are from Hofmann (1988). Primitive Mantle normalisation values for La, Dy and Yb are from Sun and McDonough, (1989)

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