Figure F43. Total alkalies vs. silica diagram showing data for Leg 192 basalt and volcaniclastic rocks. Data for the basalts plot in the tholeiitic basalt field, below the dashed line that separates Hawaiian tholeiitic basalts from Hawaiian alkalic basalts (Macdonald and Katsura, 1964). Fields of different rock types are from Le Bas et al. (1986).

Figure F43. Total alkalies vs. silica diagram showing data for Leg 192 basalt and volcaniclastic rocks. Data for the basalts plot in the tholeiitic basalt field, below the dashed line that separates Hawaiian tholeiitic basalts from Hawaiian alkalic basalts (Macdonald and Katsura, 1964). Fields of different rock types are from Le Bas et al. (1986).