11-20

F11. Site 1137 age-depth plot.

F12. Close-up photograph of interval 183-1137A-25R-3, 112-144 cm.

F13. Close-up photograph of interval 183-1137A-25R-4, 44-91 cm.

F14. Close-up photograph of interval 183-1137A- 25R-6, 70-83 cm.

F15. Vesicularity and vesicle number density as a function of depth in basement Unit 3.

F16. Close-up photograph of interval 183-1137A-27R-1, 114-125 cm.

F17. Close-up photograph of Sample 183-1137A-29R-2 (Piece 4, 54-62 cm).

F18. Vesicularity and vesicle-number density as a function of depth in basement Unit 4.

F19. Close-up photograph of interval 183-1137A-29R-2, 65-81 cm.

F20. Close-up photograph of interval 183-1137A-33R-1, 110-140 cm.