Figure F57. TiO2 vs. Mg#, showing the similarity between the major element compositions of four of the Site 1184 samples, the basalt of Units C-G at Site 807 (Mahoney et al., 1993), and the basalt flows of the Kwaimbaita Formation on Malaita (Tejada et al., in press). Two samples are similar to the basalt from Site 803, Unit A at Site 807, and/or the Singgalo Formation on Malaita. Mg# is calculated assuming that 12% of the iron is Fe3+, which is equivalent to Fe2O3/(Fe2O3+FeO) = 0.13, or (Fe2O3/FeO = 0.15).

Figure F57. TiO₂ vs. Mg#, showing the similarity between the major element compositions of four of the Site 1184 samples, the basalt of Units C-G at Site 807 (Mahoney et al., 1993), and the basalt flows of the Kwaimbaita Formation on Malaita (Tejada et al., in press). Two samples are similar to the basalt from Site 803, Unit A at Site 807, and/or the Singgalo Formation on Malaita. Mg# is calculated assuming that 12% of the iron is Fe³⁺, which is equivalent to Fe₂O₃/(Fe₂O₃+FeO) = 0.13, or (Fe₂O₃/FeO = 0.15).