Figure F10. Total alkalies vs. silica diagram (after Le Bas, 1986) for basement rocks recovered at all Leg 192 sites. The broken line separates Hawaiian alkalic and tholeiitic basalts (Macdonald and Katsura, 1964).

Figure F10. Total alkalies vs. silica diagram (after Le Bas, 1986) for basement rocks recovered at all Leg 192 sites. The broken line separates Hawaiian alkalic and tholeiitic basalts (Macdonald and Katsura, 1964).