Figures F1-F50
Figures F51-F100
Figures F101-F154
Tables T1-T23

F1. Hole locations for Sites 1189 and 1190.

F2. Graphic summary log for Hole 1189A showing the lithologic characteristics of the various units including alteration.

F3. Hydrothermal breccia with completely altered volcanic fragments in an anhydrite-silica-pyrite stockwork matrix.

F4. Volcanic fragments with perlitic groundmass texture.

F5. Vesicle with secondary minerals and pilotaxitic groundmass texture from Unit 5.

F6. Flow banding preserved in fragments within hydrothermal breccia, Unit 9.

F7. A massive volcanic rock with quartz-pyrite veining and associated jigsaw-fit breccia textures.

F8. Rotated volcanic fragments in hydrothermal breccia.

F9. Rotated volcanic fragments in hydrothermal breccia.

F10. Jigsaw-fit texture in hydrothermal breccia with pervasively silica-clay alteration overprinted by silicification.

F11. Semimassive sulfide with abundant blocky to wispy volcanic clasts, Unit 21.

F12. Volcanic clasts with tube pumice texture within semimassive sulfide, Unit 21.

F13. Vesicular and nonvesicular volcanic clasts forming a clast-supported texture in sulfide-poor domains, Unit 21.

F14. Remnant flow banding in volcanic fragments of hydrothermal breccia.

F15. A black patch with former acicular crystals replaced by feldspar/quartz and fine opaque grains.

F16. Margin of a black patch showing a former plagioclase phenocryst.

F17. Rim at the edge of a black patch with relict bladed crystals showing oriented microlites in the host rock.

F18. Graphic summary log for Hole 1189B showing the lithologic characteristics of the various units including alteration.

F19. Hand specimen of matrix-supported breccia with green clay altered volcanic clasts in an anhydrite-pyrite-quartz cement.

F20. Green silicified, moderately amygdaloidal, aphyric volcanic rock with hairline quartz-anhydrite-pyrite veins.

F21. Flow banding defined by alternating white bands of coalesced microspherulites and dark bands with isolated microspherulites.

F22. Poorly sorted volcaniclastic breccia (Unit 23) with flow-banded clasts showing evidence for in situ fragmentation and rotation of clasts.

F23. Synvolcanic intrusion of molten lava into its own autoclastic breccia, Unit 23.

F24. Clast-supported volcaniclastic breccia with rotated fragments.

F25. Flow-banded, highly altered volcanic rock, crosscut by a feeble network of silica veins, surrounded by alteration halos of silica-clay minerals.

F26. Intensely veined, weakly vesicular and sparsely plagioclase phyric volcanic rock.

F27. Moderately vesicular aphyric volcanic rock with a hieroglyphic texture caused by incomplete hydrothermal alteration of groundmass.

F28. Polymict breccia showing evidence for clast abrasion and fine sulfide veins that predate deposition.

F29. Rounded, fresh plagioclase phenocrysts, typical of the lower sequence in Hole 1189B.

F30. Fresh plagioclase and altered clinopyroxene phenocrysts, Unit 25.

F31. Quartz ± pyrite amygdules within a completely altered volcanic rock, Unit 11.

F32. Quartz-sphalerite amygdule within highly altered volcanic rock, Unit 26,.

F33. Remnant perlite texture in the altered groundmass of a completely altered, aphyric massive rock.

F34. Perlitic cracking preserved in altered volcanic rock.

F35. Former tube pumice clast with perlitic structure and stretched chlorite-filled amygdules.

F36. Perlitic texture preserved in altered volcanic clast, within a jasperoidal stockwork matrix.

F37. Perlitic clasts hosted in an anhydrite and gypsum-rich stockwork matrix.

F38. Flow banding defined by aligned, coalesced spherulites forming "necklacelike" domains.

F39. Flow banding defined by alternating light gray bands of aligned and coalesced spherulites and brown to dark gray bands with only isolated spherulites.

F40. Flow-banded clasts in Unit 20 showing wispy domains of black, very fine grained material.

F41. Polymict volcaniclastic breccia with closely packed spherulites.

F42. Photomicrograph of a xenolith with intergranular texture and skeletal plagioclase.

F43. Variolitic plagioclase concentrated at the margin of a xenolith.

F44. The graded volcaniclastic sandstone contains a variety of submillimeter angular fragments including glassy, porphyritic, and perlitic clasts.

F45. Hydrothermal brecciation with a clastic zone within an exceptionally large vein in coherent volcanic rock.

F46. Summary of lithostratigraphic units, alteration type, and distribution of alteration phases as indicated by XRD, Hole 1189A.

F47. Summary of lithostratigraphic units, alteration type, and distribution of alteration phases as indicated by XRD, Hole 1189B.

F48. Variation in abundance of minerals with depth as estimated from thin sections, Holes 1189A and 1189B.

F49. Brecciated, GSC altered rock with flow-banded, rotated volcanic clasts hosted in a silica-pyrite vein network.

F50. A GSC altered volcanic rock with preserved flow-banded texture and late crosscutting silica veins.

Figures F1-F50
Figures F51-F100
Figures F101-F154
Tables T1-T23