Foden, J.; Sossi, Paolo; Wawryk, Christine
We present new Fe isotope data of 42 S-, I- and A-type (ferroan) granites from the Cambrian Delamerian orogen in South Australia, the Palaeozoic Lachlan Fold Belt and Western USA. Interpretation of these data, together with modelling suggests that magmatic processes do result in quite complex Fe-isotopic differentiation trends and can lead to granites with isotopically heavy iron with δ57Fe>0.35‰. By comparison Mid-Ocean Ridge Basalts (MORBs) have δ57Fe=0.15‰ (Teng et al., 2013). These...[Show more]
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