Figure F11. A. Average and single-spot analyses of plagioclase anorthite and clinopyroxene and olivine Mg# plotted vs. expanded depth. B. Average and single-spot analyses of orthopyroxene and brown hornblende plotted against expanded depth. C. Plot of whole-rock Mg# plotted against depth for Leg 118 and Leg 176 shipboard whole-rock analyses of gabbros, microgabbros, and felsic veins taken from the Leg 176 Initial Results volume (Dick, Natland, Miller, et al., 1999). Samples are subdivided mainly on the basis of TiO2 content. Solid diamonds = troctolite, troctolitic gabbro, and olivine gabbro having <0.4 wt% TiO2, solid blue diamonds = gabbro, gabbronorite, and disseminated oxide gabbro with between 0.4 and 1.0 wt% TiO2, solid yellow diamonds = oxide gabbro with >1.0 wt% TiO2, half-solid squares = felsic samples or hybrid samples with a significant felsic component. Solid gray triangle = a basaltic dike.

Figure F11. A. Average and single-spot analyses of plagioclase anorthite and clinopyroxene and olivine Mg# plotted vs. expanded depth. B. Average and single-spot analyses of orthopyroxene and brown hornblende plotted against expanded depth. C. Plot of whole-rock Mg# plotted against depth for Leg 118 and Leg 176 shipboard whole-rock analyses of gabbros, microgabbros, and felsic veins taken from the Leg 176 Initial Reports volume (Dick, Natland, Miller, et al., 1999). Samples are subdivided mainly on the basis of TiO₂ content. Solid diamonds = troctolite, troctolitic gabbro, and olivine gabbro having <0.4 wt% TiO₂, solid blue diamonds = gabbro, gabbronorite, and disseminated oxide gabbro with between 0.4 and 1.0 wt% TiO₂, solid yellow diamonds = oxide gabbro with >1.0 wt% TiO₂, half-solid squares = felsic samples or hybrid samples with a significant felsic component. Solid gray triangle = a basaltic dike.