Initial Reports Volume 191 Chapter 4, Table 8. Phenocryst distribution in basalts, Hole 1179D. Basalt group Plagioclase phenocrysts all (%) Plagioclase phenocrysts massive (mean) (%) Plagioclase phenocrysts pillow (mean) (%) Olivine phenocrysts range (%) Olivine phenocrysts mean (%) I 0.1-1.8 0.9 0.5 0.1-0.35 0.2 II 0.1-1.0 0.5 0.4 III 0.2-3.0 1.1 0.5 0.2-1.8 0.5