Figure F69. H2O, Al2O3 and Mg# vs. SiO2 for rocks from Site 1275. Shown for comparison are peridotites and gabbros from Sites 1270, 1271, 1272, and 1274. Published data for Leg 153 gabbros (Agar et al., 1997) and Hole 735B (Dick, Natland, and Miller, et al., 1999) are shown for comparison.