Figure F8. Geochemical discrimination diagrams for Site 1277 basalts using XRF data. TiO2 is recalculated as Ti ppm. A. Zr/Y vs. Zr plot from Pearce and Norry (1979). B. V vs. Ti plot from Shervais (1982). ARC = volcanic arcs, OFB = ocean floor basalt. C. Ti/100 vs. Zr vs. 3Y. Plot from Pearce and Cann (1973). IAT = island arc tholeiite, MORB = mid-ocean-ridge basalt, CAB = calc-alkali basalt, WPB = within-plate basalt. D. 2Nb vs. Zr/4 vs. Y (Wood, 1980). Al and All = within-plate basalt, B = enriched mid-ocean-ridge basalt, C = within-plate basalt/calc-alkali basalt, D = normal mid-ocean-ridge basalt/calc-alkali basalt.

Figure F8. Geochemical discrimination diagrams for Site 1277 basalts using XRF data. TiO₂ is recalculated as Ti ppm. A. Zr/Y vs. Zr plot from Pearce and Norry (1979). B. V vs. Ti plot from Shervais (1982). ARC = volcanic arcs, OFB = ocean floor basalt. C. Ti/100 vs. Zr vs. 3Y. Plot from Pearce and Cann (1973). IAT = island arc tholeiite, MORB = mid-ocean-ridge basalt, CAB = calc-alkali basalt, WPB = within-plate basalt. D. 2Nb vs. Zr/4 vs. Y (Wood, 1980). Al and All = within-plate basalt, B = enriched mid-ocean-ridge basalt, C = within-plate basalt/calc-alkali basalt, D = normal mid-ocean-ridge basalt/calc-alkali basalt.