Figure F20. Lithologic units of Hole 1223A (Garcia et al., 2006). M = Eocene and younger, EE = early Eocene.

Figure F23. MgO versus SiO₂ and CaO for glass sands from Layers 1–8 of Hole 1223A. The range of values for sands from the Koolau and East Molokai group are also shown. (Reprinted from Garcia et al., 2006, with permission from Elsevier.)