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Swiss Journal of Geosciences
Fig. 8 | Swiss Journal of Geosciences

Fig. 8

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

Fig. 8

A Nb/Y vs. Ti/Y diagram of Pearce, (1982), Nb/Y ratios (grey area) taken from Winchester and Floyd, (1977). B La/Yb vs. Nb/La plot, indicating a lithospheric mantle source contribution to the magma of the Gasht-Masuleh gabbros (Smith et al., 1999). E-/N-MORB, enriched and normal mid ocean ridge basalts, LC: lower crust, OIB: oceanic island basalts, PM: primitive mantle, UC: upper crust. (E-N MORB, OIB, PM values are from Sun & McDonough, 1989; LC, UC values are from Rudnick & Gao, 2003)

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