Figure F39. Comparison of incompatible element ratio (Zr/TiO2 and Zr/Y) versus MgO and basalt from Hole 504B. EPR = East Pacific Rise. LP = lava pond, SF = sheet flow, MB = massive basalt, BD = basalt dike, GC = ghost core. 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).
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