Figure F7. Zr/Ti vs. Nb/Y plot using XRF data, showing that Site 1277 basalts (solid circles) have affinities with andesite/basalt. Ti ppm is recalculated from TiO2. Plot after Floyd and Winchester (1975). Alk-Bas = alkali basalt, Bsn/Nph = basanite/nephelenite, Com/Pant = comendite/pantellite.

Figure F7. Zr/Ti vs. Nb/Y plot using XRF data, showing that Site 1277 basalts (solid circles) have affinities with andesite/basalt. Ti ppm is recalculated from TiO₂. Plot after Floyd and Winchester (1975). Alk-Bas = alkali basalt, Bsn/Nph = basanite/nephelenite, Com/Pant = comendite/pantellite.