F1. Bathymetry and survey tracks.
F2. Track of Shinkai Dive 423, hole location, and bathymetric section of Site 1269.
F3. Typical vesicular basalt.
F4. Plagioclase, glass, and quench clinopyroxene crystals.
F5. Photographs and binary images of bubble size distribution.
F6. Population density vs. vesicle diameter.
T1. Coring summary.
T2. Microbiology data for mud samples.
Figures F1-F6
Tables T1-T2
