Figure 11 –

(A) Minor and trace element contents of a parental magma calculated with the assumption that no inter-cumulus melt was retained in the pipes (F=0), and melt compositions in equilibrium with pipe amphiboles. The partition coefficients used in calculations are from Adam et al., (2007) with mineral compositions from Appendix 2 and bulk-rock data from Garuti et al., (2001). The compositions of selected lamproites (Turner et al., 1999; Peccerillo and Martinotti, 2006) and an average ocean-island basalt (GEOROC database) are shown for comparison.

(B) Minor and trace element contents of parental magmas calculated with the assumption that 10% (F=10) or 20% (F=20) inter-cumulus melt was retained in the pipes. The partition coefficients used in calculations are from Adam et al. (2007) [amphibole], Adam and Green (2006) [orthopyroxene and olivine], Kiseeva and Wood (2013) [sulfide melt], and Blundy and Wood (1991) [plagioclase], with bulk-rock data from Garuti et al. (2001). The compositions of arc-like basalts from Meshkan (Shabanian et al., 2012) and an average ocean-island basalt (GEOROC database) are shown for comparison.