Figure F38. Zr vs. K2O for Site 1204 (Holes 1204A and 1204B) samples, Site 1203, Hawaiian lavas (Mauna Kea Volcano and Loihi Seamount), and ODP Sites 883 and 884. Sources of data: Mauna Kea and Loihi: Frey et al. (1990, 1991), Macdonald and Katsura (1964), and Rhodes (1996). ODP Sites 883 and 884: Rea, Basov, Janecek, Palmer-Julson, et al. (1993) and Keller et al. (1995). For Site 1203 samples, circles = tholeiitic basalt, squares = alkali basalt (see also "Alteration and Weathering" in the "Site 1203" chapter).