Figure F34. Comparison of incompatible element ratio (Zr/TiO2, Zr/Y) versus MgO and basalt from Hole 504B. Hole 504B basalts from Autio and Rhodes (1983), Kempton et al. (1985), Natland et al. (1983), Expedition 304 Scientists (2005), and Expedition 305 Scientists (2005).