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

F51. Anhydrite-quartz-(pyrite) veining between GSC altered volcanic fragments.

F52. Remnant weakly aligned microlitic plagioclase in the groundmass of a bleached, sparsely vesicular volcanic rock.

F53. Coarse-grained, bladed anhydrite filling the center of a quartz-pyrite vein in a bleached volcanic rock.

F54. A pervasively silicified volcanic rock with quartz amygdules and remnant plagioclase microlites.

F55. A massive volcanic rock with quartz-pyrite veining and associated jigsaw-fit breccia textures.

F56. Poikiloblastic silicification in Unit 15.

F57. Quartz amygdules in a spotted quartz-clay altered groundmass with disseminated pyrite.

F58. Green silicified, moderately amygdaloidal, aphyric volcanic rock with hairline quartz-anhydrite-pyrite veins.

F59. Relationship between volcanic fragments, anhydrite, and gypsum in Unit 3.

F60. Jasperoidal silica breccia cement from Unit 5.

F61. Hand specimen of matrix-supported breccia with green clay altered volcanic clasts in an anhydrite-pyrite-quartz cement.

F62. Moderately vesicular aphyric volcanic rock with a hieroglyphic texture.

F63. Intensely veined, weakly vesicular and sparsely plagioclase phyric volcanic rock.

F64. Breccia, comprising flow-banded, volcanic clasts hosted in a quartz-rich cement with coarse anhydrite vug fill.

F65. Partly coherent, flow-banded jigsaw-fit breccia, dissected by a network of quartz-sphalerite-pyrite veins.

F66. Rotated flow-banded fragments set in a dark gray, soft vuggy matrix, and with spherulitic domains.

F67. Flow-banded, highly altered volcanic rock.

F68. Polymict breccia showing evidence for clast abrasion and fine sulfide veins that predate deposition.

F69. Chalcopyrite-sphalerite bearing clast in volcaniclastic sandstone.

F70. Barite replacing and overgrowing anhydrite in a quartz-breccia matrix.

F71. Anhydrite-quartz-pyrite vein in altered breccia.

F72. Narrow anastomosing quartz-pyrite veins in altered rock.

F73. Anhydrite-quartz-pyrite vein with cockade structure.

F74. Semimassive sulfide consisting of pyrite and chalcopyrite grains in a quartz-rich matrix.

F75. Angular fragment of volcanic rock within a quartz-pyrite matrix.

F76. Disseminated pyrite in a microlite-rich groundmass of moderately altered rhyodacite.

F77. Disseminated euhedral pyrite containing inclusions of groundmass microlites.

F78. Pyrite and magnetite occupy the cores of former plagioclase crystals that have been replaced by quartz.

F79. Quartz and pyrite precipitated on the wall of a vesicle.

F80. Pyrite crystals nucleated around quartz and overgrown by marcasite crystals overgrown by more pyrite.

F81. Chalcopyrite in cavity within a quartz mass that fills an amygdule.

F82. Sphalerite and chalcopyrite replacing pyrite.

F83. Enlargement showing chalcopyrite inclusions in sphalerite.

F84. Red hematitic chert with disseminated pyrite and chalcopyrite and fragments of highly altered rock.

F85. Sphalerite or magnetite precipitated on early pyrite and overgrown by later pyrite.

F86. Pyrite containing inclusions of quartz and sphalerite with chalcopyrite disease.

F87. Quartz vein with chalcopyrite diseased sphalerite and chalcopyrite intergrown with pyrite.

F88. Apparent pseudomorphous replacement of magnetite by pyrite and hematite.

F89. Paragenetic sequence for Hole 1189A.

F90. Ovoid structure with a thin pyrite rim and chalcopyrite fill.

F91. Possibly dismembered ovoid structure filling the center of the field of view.

F92. Framboids of pyrite in quartz.

F93. Amygdule filled with quartz and sphalerite.

F94. Zoned sphalerite with chalcopyrite disease in its outer portion.

F95. Pyrite replacing magnetite.

F96. Bladed hematite embedded in quartz together with pyrite, chalcopyrite, and magnetite.

F97. Magnetite, hematite, and pyrite assemblage in groundmass.

F98. Paragenetic diagram for Site 1189.

F99. Dip of primary volcanic layering vs. depth, Hole 1189A.

F100. Anhydrite-cemented breccia with fragments of pervasively altered volcanic rock.

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