Figure F8. Plots of TiO2, V, Cr, Ni, Sr, Y, Zr, and Nb in whole-rock samples against cpx# and Mg# to illustrate relative controls (modal vs. mineral compositional) on the abundances and distribution of these elements in gabbroic rocks. East Pacific Rise and Atlantis II Fracture Zone mid-ocean-ridge basalt data (references given in Fig. F2, p. 19) are shown in Mg# plots for comparison. Symbols are as in Figures F3, p. 20, and F7, p. 24. cpx = clinopyroxene, plag = plagioclase.

Figure F8. Plots of TiO₂, V, Cr, Ni, Sr, Y, Zr, and Nb in whole-rock samples against cpx# and Mg# to illustrate relative controls (modal vs. mineral compositional) on the abundances and distribution of these elements in gabbroic rocks. East Pacific Rise and Atlantis II Fracture Zone mid-ocean-ridge basalt data (references given in Fig. F2) are shown in Mg# plots for comparison. Symbols are as in Figures F3 and F7. cpx = clinopyroxene, plag = plagioclase.