Figures F1-F24
Tables T1-T4

F1. Subophitic texture with clinopyroxene partially enclosing plagioclase laths.

F2. Replacement of groundmass and olivine by Fe oxyhydroxide.

F3. A long piece of a massive flow with homogeneous intergranular texture, Unit 2.

F4. Intergranular groundmass texture with prismatic plagioclase, granular to elongate pyroxene, and anhedral interstitial opaque minerals.

F5. Spherical melt inclusions in plagioclase phenocrysts.

F6. Glomerocrysts of plagioclase and olivine.

F7. Alteration halo in aphyric basalt.

F8. Boundary between unaltered and altered groundmass.

F9. Alteration halo in the basalt of Unit 3.

F10. Small, Fe-stained silica vein in basalt from Unit 3.

F11. Patches of calcite mineralization.

F12. Smectite and Fe oxyhydroxide replacing groundmass clinopyroxene.

F13. Highly altered basalt fragment from Unit 5.

F14. Quenched margin of a pillow lava.

F15. Chlorite-filled fracture.

F16. Fresh massive basalt crosscut by chlorite-lined fractures and thin calcite veins.

F17. Calcite vein surrounded by an alteration halo.

F18. Unaltered groundmass of massive basalt in Unit 2.

F19. Smectite replacing groundmass and filling vesicles.

F20. Track chart of the JR SCS survey line S8.

F21. SCS profile line S8.

F22. Major element variations vs. MgO for basalts from Holes 1160A and 1160B.

F23. Trace element variations vs. MgO for basalts from Holes 1160A and 1160B.

F24. Variations of Zr/Ba vs. Ba and Na2O/TiO2 vs. MgO for Holes 1160A and 1160B basaltic glass and whole-rock samples.

Tables T1-T4

T1. Coring summary, Site 1160.

T2. Site 1160 lithologic units

T3. Rock samples for cultures, DNA analysis, SEM/TEM, and contamination studies.

T4. Compositions of basalts from Site 1160.

Figures F1-F24
Tables T1-T4