169 SUBJECT INDEX
N-Z

n-alkanes
bitumens, A:119-120
gas chromatographs, A:120, 179-182, 224, 286
sediments, A:178-181, 222-223, 225
n-alkanoic acids, bitumens, A:181
n-alkanols, bitumens, A:181
naphthalane, gas chromatographs, A:286
neodymium/yttrium ratio, clay minerals, B6:6, 24
nickel, mass balance, A:98
niobium
immobility, A:99
mass balance, A:98
niobium-zirconium-yttrium plots, basalts, A:216
nitrogen
sediments, A:117, 119
weight percentages, A:122-123
See also carbon/nitrogen ratio
nitrogen, total
sediments, A:120-121, 181-182, 223, 287-288
vs. depth, A:124, 185, 227, 289-290
weight percentages, A:184, 226, 288-289
nodules
alteration zones, A:82; B10:9
lithologic units, A:166-167
See also anhydrite nodules; carbonate nodules; concretions
nodules, anhydrite
lithologic units, A:164-165
photograph, A:57
nodules, carbonate
lithologic units, A:164
photograph, A:166
nutrient elements, pore water, A:115, 218, 278-279

 

ODP Mound
hydrothermal circulation, A:11
massive sulfides, A:61, 64; B10:12-14
sulfide mineral chemistry and petrography, B5:1-34
olivine
basalts, A:213-214, 271
photomicrograph, A:215, 271
Ore Drilling Program Mound. See ODP Mound
organic matter
lithologic units, A:208
sediments, A:121, 183, 225, 287; B10:19-20, 23
overgrowths, photomicrograph, A:79
oxygen, mass balance, A:98
oxygen isotopes, clay minerals, B6:6, 8-9

 

Pacific Ocean NE, spreading centers, A:7-16
paleomagnetism
Site 1035, A:134-139
Site 1036, A:200-201
Site 1037, A:231-233
Site 1038, A:293-295
paleoveins, photograph, A:72
Paquate Sandstone, fatty acids, B3:17
paragenesis, photomicrograph, B5:18
permeability
anisotropy, B8:4, 24
fluid flow, B8:10-12
lithologic units, B8:3-5
vs. depth, B8:33
vs. formation factor, B8:26
vs. grain density, B8:3-4, 23
vs. porosity, B8:3-4, 22
vs. pressure, B8:3-4, 21, 25, 36-39
petrography
composition, A:94-95
igneous rocks, A:90-94
massive sulfides, B5:1-34
petroleum, hydrothermal, sediments, A:179-181, 284-287
pH
bacterial cells, B2:8
vs. depth, A:176; B2:8, 18
vs. magnesium, A:172
phenanthrene, gas chromatographs, A:286
phenocrysts
photograph, A:92, 107
photomicrograph, A:271
pillow lava, A:94
sills, A:92
See also microphenocrysts
phosphate
pore water, B1:2, 4
vs. depth, B1:11
phospholipids, microbial biomass, B3:1-19
phosphorus
immobility, A:99
mass balance, A:98
phosphorus oxide
basalts, A:95
clay minerals, B6:6, 23
vs. depth, A:97
phyllosilicates, hydrothermal circulation, A:7-8
physical properties
sediments, B7:1-19
shore-based experiments, B7:14
Site 1035, A:125-130
Site 1036, A:186-188
Site 1037, A:225-227
Site 1038, A:289-292
phytane
gas chromatographs, A:120, 179-182, 224, 286
See also pristane/phytane ratio
Piceance Basin, fatty acids, B3:16
pillow basalts
formation microscanner imagery, A:136
isocons, A:99
petrology, A:93-94
structure, A:272
plagioclase
basalts, A:271
geochemistry, A:100-101
mass balance, A:96, 98-99
phenocrysts, A:212-214
photograph, A:92, 100
photomicrograph, A:94
pillow lava, A:93-94
sills, A:92
plagioclase, acicular, photomicrograph, A:271
plagioclase, glomerocrystic, photomicrograph, A:215
plagioclase, zoned, photomicrograph, A:271
Pleistocene
geology, A:12
lithologic units, A:208-210, 265-267
See also Holocene/Pleistocene boundary
Pleistocene, upper, lithologic units, A:163-167
pore pressure
Site 1036, A:196-200; B10:16-17
venting, A:198-199
pore water
basalts, A:279, 281
geochemistry, A:113, 173-174, 219, 274-275; B1:1-16; 10:22-23
hydrothermal alteration, A:279
sand, A:279
porosity
sediments, A:126; B7:4-6
vs. depth, A:128, 187, 228, 291, 293-294; B7:10-13
vs. permeability, B8:3-4, 22
vs. thermal conductivity, B8:31
porosity logs
vs. depth, A:132-133, 231
See also gamma ray-density-porosity logs
potassium
basalts, A:215-216
clay mineralogy, B6:7, 9
hydrothermal component, A:281
mass balance, A:98
pore water, A:116, 171-175, 218, 274-281
sediments, B10:19
vs. chloride, A:279
vs. depth, A:116, 177, 220, 276-278, 280
vs. magnesium, A:118, 172-173, 178
potassium logs, vs. depth, A:132, 231
potassium oxide
basalts, A:95
vs. depth, A:97
preservation, foraminifers, A:268
pressure
fluid flow, B8:10-12
vs. formation factor, B8:5, 25, 36-39
vs. permeability, B8:3-4, 21, 25, 36-39
vs. resistivity, B8:36-39
pristane, gas chromatographs, A:120, 180, 224, 286
pristane/phytane ratio
sediments, A:179-181, 222-223, 225, 284-287
vs. depth, A:183, 225
propane, sediments, A:117, 119
protactinium-231/uranium-235 ratio
geochronology, B4:1-15
massive sulfides, B4:14-15
vs. thorium-230/uranium-234 ratio, B4:10, 12
protoliths, photomicrograph, A:100
pseudomorphs
geochemistry, A:100-101
photograph, A:92, 100
photomicrograph, A:79
sills, A:92
pyrene, gas chromatographs, A:286
pyrite
alteration zones, A:85-86; B10:13-14
basalts, A:272
clastic sulfides, A:59-61
Deep Copper Zone, A:77
disseminated sulfides, A:270
hydrothermal circulation, A:11
lithologic units, A:165-168
massive sulfides, A:64-67, 269-270; B5:5-6
photograph, A:69, 73, 80-81, 166, 272
photomicrograph, A:71-72; B5:18
sulfide banded/impregnated sandstone, A:76
sulfide banding, B9:6
veins, A:75-76
vs. depth, B5:15
See also pyrrhotite-pyrite; sphalerite-pyrrhotite-pyrite-magnetite
pyrite, framboidal, lithologic units, A:166-167
pyrite, heterogenous, sulfides, A:68-69
pyrite, neoblastic
photograph, A:70
sulfide mineralization, A:70
pyrite, poikiloblastic, sulfide mineralization, A:70
pyrite, vuggy, photograph, A:71, 270
pyrite-marcasite, sulfide mineralization, A:71
pyrite veins, photograph, A:68, 105
pyroxene
geochemistry, B6:5-6, 14, 17
photograph, A:92, 107
vs. depth, B6:14-17
See also clinopyroxene
pyrrhotite
backscattered electron image, B9:5, 17
basalts, A:272
clastic sulfides, A:59-61
Deep Copper Zone, A:77
hydrothermal alteration, A:267-268
hydrothermal circulation, A:11
lithologic units, A:165, 168
massive sulfides, A:64-67, 269-270; B5:5-6; B10:13-14
photograph, A:69, 73-76, 80-81, 100, 110
photomicrograph, A:71, 79; B5:18-19
replacement along pyrite grain boundaries, B9:6, 23
sulfide banded/impregnated sandstone, A:76
veins, A:75-76; B9:4-9, 16
vs. depth, B5:15
See also sphalerite-pyrrhotite-pyrite-magnetite
pyrrhotite, banded, photograph, A:68
pyrrhotite, fibrous, photograph, A:270
pyrrhotite, fine-grained homogeneous massive, sulfides, A:67-68
pyrrhotite, heterogenous, sulfides, A:68-69
pyrrhotite, hexagonal, photomicrograph, A:66
pyrrhotite, massive fine-grained, photograph, A:68, 105
pyrrhotite-pyrite, mineralization, A:68-69
pyrrhotite veins, photograph, A:109

 

quartz
Deep Copper Zone, A:77-78
geochemistry, B6:5-6, 14, 17
lithologic units, A:267
massive sulfides, A:270
photograph, A:82
photomicrograph, A:79, 95
sulfide mineralization, A:70
veins, A:75; B10:9
vs. depth, B6:14-17
quartz, euhedral, alteration zones, B9:5
Quaternary, lithologic units, A:51-53
Quaternary, upper, biostratigraphy, A:38-39
quench textures, photomicrograph, A:94

 

radiolarians, lithologic units, A:208
rare earths
chlorite, B6:20
clay minerals, B6:6, 8-9, 24
recrystallization
photograph, A:100
photomicrograph, A:100
sediment transition to basalt, A:210-211
sulfide mineralization, A:71; B10:8
remanent magnetization, isothermal
acquisition curves, A:139
sediments, A:136-137
vs. depth, A:138
remanent magnetization, natural, sediments, A:136, 201, 232
remanent magnetization, natural/isothermal remanent magnetization ratio, vs. depth, A:138
resistivity
measurement, B8:7-8, 30
pressure, B8:36-39
vs. sample and fluid conductivity, B8:42
See also conductivity; electrical impedance
resistivity logs
vs. depth, A:132, 230-231
See also gamma ray-resistivity-sonic logs
Rhizocorallium?
Lithofacies B, A:56
photograph, A:62
rifts, geology, A:12
ripple marks. See climbing ripples
rock magnetism
records, A:138
sediments, A:134-139
rubble
basalts, A:272
lithologic units, A:164, 168
photograph, A:168
sediments transition to basalt, A:210-211
rubidium
basalts, A:95, 215-216
clay mineralogy, B6:8
rutile
Deep Copper Zone, A:77
veins, A:75

 

sand
lithologic units, A:166-167, 208-210
photograph, A:60, 62, 65
sand, turbiditic, lithologic units, A:52
sandstone
Lithofacies B, A:56
lithologic units, A:210
photograph, A:58, 61, 73-74, 77, 80, 82, 111; B9:5-6, 20-21; B10:11, 38
sandstone, silicified, disseminated sulfides, A:270
sandstone, sulfide banded/impregnated, sulfides, A:76
sea-level changes, geology, A:12
sedimentary rocks
geochemistry, A:101
vs. depth, A:91
sedimentary sources, pore water, A:219
sedimentary structures
sediment transition to basalt, A:210-211
sills, A:90-93
sedimentation rates
Holocene, A:268
lithologic units, A:164, 209, 212
sedimentology
lithologic units, A:51-53
Site 1035, A:51-57
Site 1037, A:207-211; B10:18-22
Site 1038, A:263-268; B10:21-22
sediments
bacterial profiles, B2:1-18
clay mineralogy, B6:22
electrical impedance, B8:5-8
geochemistry, B10:19-20
hydrothermal alteration, A:78-87
interaction with basement, A:221
laccoliths, A:256
microbial biomass, B3:1-19
permeability, B8:3-5
physical properties, B7:1-19
thermal conductivity, B8:8-10
transition to basalt, A:210-211
velocity, B7:6-7
sediments, collapsed chimney-derived, photograph, A:168
sediments, feeder zone, density and porosity, B7:5
sediments, hemipelagic
density and porosity, B7:5
hydrothermal alteration, A:259
Lithofacies A, A:54-56
lithologic units, A:44-53, 163-167
sediments, hydrothermally recrystallized, mass balance, A:99-101
sediments, sulfide-veined, facies, A:74-75
sediments, turbiditic, density and porosity, B7:5
seismic profiles
hydrothermal circulation, A:10
location, A:160
Site 858, A:159
Site 1035, A:40
seismic surveys, geology, A:12
selvages
alteration zones, A:82-84; B9:5
photograph, A:92, 107
silica
basalts, A:95
clay minerals, B6:6, 23
hydrothermal circulation, A:11
pore water, A:171-175, 218-219, 279
vs. depth, A:97, 116, 177, 220, 280
vs. loss on ignition, A:98
vs. magnesium, A:172
silicification
alteration zones, A:84, 87; B10:12
Deep Copper Zone, A:77
lithologic units, A:52
photograph, A:88
veins, A:76
silicon
immobility, A:99
mass balance, A:98
sills, basaltic
composition, A:212-214; B10:8
density and porosity, B7:5-6
hydrothermal circulation, A:10
intrusion, A:101
laccoliths, A:256
mass balance, A:96, 98-99
petrography, A:90-93
photograph, A:106
velocity, B7:7
silt
clastic sulfides, A:59
lithologic units, A:164-167
photograph, A:211
silt, clayey, Lithofacies A, A:54-56
silt, turbiditic, lithologic units, A:52
siltstone
Lithofacies A, A:54-56
Lithofacies B, A:56
lithologic units, A:210, 265; B9:5, 20
photograph, A:58, 61, 73-74, 76, 80-81, 88, 109
photomicrograph, A:79
Site 856
depth of Stage 5e interglacial zone, A:170
geochronology, B4:1-15
lithologic units, A:46
physical properties, B7:1-19
pore water, A:112
structural data, A:102-103, 106
sulfide mineral chemistry and petrography, B5:1-34
vein networks, B9:1-25
Site 857
depth of Stage 5e interglacial zone, A:170
temperature, A:195-196
volatile gases, A:175, 178
well-logging, A:193-195
Site 858
bacterial profiles, B2:1-18
bitumens, A:178
inorganic geochemistry, A:169, 171
temperature, A:195
volatile gases, A:178
well-logging, A:192
Site 1035, A:35-152
bacterial profiles, B2:4-6
biostratigraphy, A:38-39, 57-58
coring, A:43
downhole measurements, A:130-134
geochronology, B4:1-15
geological setting, A:37-38
igneous petrology and geochemistry, A:89-102
inorganic geochemistry, A:112-117
lithostratigraphy and sedimentology, A:45-57
microbiology, A:123-125
objectives, A:40-41
operations, A:41-44
organic geochemistry, A:117-123
paleomagnetism, A:134-139
physical properties, A:125-130; B7:1-19
principal results, A:39-40
site description, A:35-152
structural geology, A:102-103, 106-112
sulfide mineral chemistry and petrography, B5:1-34
sulfide mineralization, A:58-89
vein networks, B9:1-25
Site 1036, A:153-203
bacterial profiles, B2:6-8
biostratigraphy, A:169
comparison with Bent Hill, A:160-162
coring, A:163
depth of Stage 5e interglacial zone, A:170
downhole measurements, A:188-196
geological setting, A:155-157
inorganic geochemistry, A:169-175
lithostratigraphy, A:163-169
microbial biomass, B3:1-19
microbiology, A:183-184, 186
operations, A:162-163
organic geochemistry, A:175, 178-183
paleomagnetism, A:200-201
physical properties, A:186-188
pore pressure, A:196-200
principal results, A:157-160
site description, A:153-203
structural geology, A:169
Site 1037, A:205-251
biostratigraphy, A:211-212
clay minerals, B6:1-24
coring, A:207
downhole measurements, A:227-231
geochemistry, B1:1-16
geological setting, A:206
igneous petrology and geochemistry, A:212-216
inorganic geochemistry, A:217-221
lithostratigraphy and sedimentology, A:207-211
microbiology, A:225
operations, A:206-207
organic geochemistry, A:221-225
paleomagnetism, A:231-233
physical properties, A:225-227; B7:1-19
pore water, A:281
scientific objectives, A:206
site description, A:205-251
structural geology, A:216-217
Site 1038, A:253-298
biostratigraphy, A:268
clay minerals, B6:1-24
coring, A:260-261
downhole measurements, A:292-293
geochemistry, B1:1-16
geological setting, A:255-259
igneous petrology, A:271-272
inorganic geochemistry, A:273-281
lithostratigraphy and sedimentology, A:263-268
microbiology, A:288-289
operations, A:259-263
organic geochemistry, A:281-288
paleomagnetism, A:293-295
physical properties, A:289-292; B7:1-19
site description, A:253-298
structural geology, A:272-273
sulfide petrology, A:268-271
slumps
fault scarps, B10:21-22
photograph, A:60
smectite
alteration zones, A:81-82
basalts, A:213, 271
geochemistry, B6:5-6, 14, 17
lithologic units, A:167-168
photomicrograph, A:271
sulfide banded/impregnated sandstone, A:76
sulfide mineralization, A:71
veins, A:216-217
vs. depth, B6:14-17
See also chlorite/smectite mixed layer
smectite, magnesium-rich
hydrothermal alteration, A:259
massive sulfides, A:270
sodium
clay mineralogy, B6:7, 9
hydrothermal component, A:281
mass balance, A:98
pore water, A:113-117, 218, 274-281
sediments, B10:19
vs. chloride, A:279
vs. depth, A:116-117, 177, 220, 276-278, 280, 282
sodium/chloride ratio
pore water, A:218, 278
vs. depth, A:115, 117, 177, 220, 280, 282
sodium oxide
basalts, A:95
clay minerals, B6:6, 23
vs. depth, A:97
vs. loss on ignition, A:98
soft sediment deformation
massive sulfides, A:64
photograph, A:58, 62
sonar images, side-scan, Central Hill, A:257
sonic logs. See gamma ray-resistivity-sonic logs
Sovanco Fracture Zone, spreading centers, A:7
sphalerite
clastic sulfides, A:59-61
geochemistry, A:100-101
hydrothermal circulation, A:11
lithologic units, A:167-168
massive sulfides, A:64-67; B5:5-6
photograph, A:69-70, 72, 76, 81, 100
photomicrograph, B5:17-19
sulfide banded/impregnated sandstone, A:76
sulfide mineralization, A:71; B9:4-9, 16; B10:13-14
veins, A:76
vs. depth, B5:15
sphalerite, heterogenous, sulfides, A:68-69
sphalerite-pyrrhotite-pyrite-magnetite, mineralization, A:69-71
spreading centers, massive sulfides, A:7-16; B10:3-29
Stage 5e interglacial assemblage zone, depth, A:170
stilpnomelane, basalts, A:213
strontium
basalts, A:95
chemical alteration, A:221
clay mineralogy, B6:7, 9
mass balance, A:98
pore water, A:113-117, 171-175, 218, 274-281
sediments, B10:19
vs. calcium, A:114
vs. depth, A:115-117, 176, 220, 276-278, 280
vs. magnesium, A:172
strontium isotopes, hydrothermal alteration, A:39
structural data
Site 1035, A:103
Site 1036, A:171
Site 1037, A:217
Site 1038, A:273
structural geology
Site 1035, A:102-103, 106-112
Site 1036, A:169
Site 1037, A:216-217
Site 1038, A:272-273
structures
fluid flow, B9:6-9
vein networks, B9:1-25
See also lobate structure
sulfate
bacterial cells, B2:5-6, 8
hydrothermal circulation, A:9
hydrothermal component, A:281
pore water, A:113-117, 171-175, 218, 274-281
sediments, A:123-125
vs. depth, A:112, 114-115, 117, 176, 220, 276-278, 280; B1:12; B2:8, 18
vs. magnesium, A:172-173
sulfate reduction, sediments, A:219, 221
sulfide bands
cubic pyrite crystals, B9:6; B10:11
photograph, A:80-82; B10:11, 38
photomicrograph, A:86
sulfide breccia, photograph, A:67
sulfide clasts, photograph, A:67
sulfide impregnations, photograph, A:111
sulfide mounds
geometry, B10:8
models, A:258
sulfide veins
formation microscanner imagery, A:133-136
photograph, B10:36-37
sulfides
backscattered electron image, B9:5, 18
Central Hill, A:269
deposition, B9:6-9
electrical impedance, B8:5-8
feeder zones, A:76
fractures, A:39
geochemistry, A:87-89
hydrothermal alteration, A:78-87
hydrothermal systems, A:41-42, 52-53
mineral composition, B5:20-21, 22-34
mineralization, A:58-89, 259
permeability, B8:3-5
petrology, A:268-271
photograph, A:66-82, 85, 88
pillow lava, A:94
stratigraphy, A:46-51
thermal conductivity, B8:8-10
velocity, B7:8
sulfides, chimney residue, lithologic units, A:44-53
sulfides, clastic
lithologic units, A:44-53
Site 1035, A:58-61
stratigraphy, A:64
sulfides, colloform, sulfide mineralization, A:71
sulfides, copper-iron
clastic sulfides, A:59-61
Deep Copper Zone, A:76-78
mineralization, A:68-69
sulfides, copper-rich, photograph, A:80; B9:6, 21
sulfides, disseminated, sediments, A:270
sulfides, feeder zone
lithologic units, A:44-53
Site 1035, A:73-78
sulfides, massive
geochronology, B4:1-15
hydrothermal circulation, A:7-16
lithofacies, A:38, 67; B10:9
lithologic units, A:44-53
mineralogy and textures, A:269-270
petrology, A:269-270
Site 1035, A:61-73
sulfide mineral chemistry and petrography, B5:1-34
vein networks, B9:1-25
sulfides, massive clastic, photomicrograph, A:66
sulfides, massive pyrite-pyrrhotite, photograph, A:69
sulfides, massive vuggy, sulfide mineralization, A:71
sulfides, massive-semimassive, porosity and density, B7:6
sulfur
mineralization, A:88
vs. depth, A:89
weight percentages, A:122-123
See also carbon/sulfur ratio
sulfur, total
sediments, A:120-121, 181-182, 223, 287-288
vs. depth, A:124, 185, 227, 289
weight percentages, A:184, 226, 288-289
sulfur isotopes
histogram, A:259
hydrothermal alteration, A:40

 

talc
hydrothermal alteration, A:259
lithologic units, A:167-168
massive sulfides, A:270
rubble, A:168
talc, fibrous, sulfide mineralization, A:70
tantalum, clay mineralogy, B6:7, 9
tectonics, faults, A:256-257
temperature
Bent Hill comparison with Dead Dog Mound, A:160
geology, A:12-13
records, A:137, 194-195, 232, 295; B10:16
sediments, A:133-134, 186-188, 196, 231
sill intrusion, A:101-102
vs. depth, A:195-196, 232-233, 295
vs. time after penetration, A:232
vs. time since penetration, A:195, 295
textures
massive sulfides, A:269-270
vein networks, B9:1-25
textures, crack-seal, veins, A:75
textures, subophitic, photomicrograph, A:215
thermal conductivity
divided-bar vs. half-space needle-probe method, B8:9, 32
lithologic units, B8:8-10
sediments, A:127-128, 186-188, 225-227, 289-292
sediments and sulfides, B8:34-35, 40-41
Site 1035, A:127
Site 1036, A:188
Site 1037, A:227
Site 1038, A:290
vs. depth, A:128, 188, 228, 291, 294
vs. grain density, B8:8-9, 31
vs. porosity, B8:31
thermal data, sill intrusion, A:101
thermal flow, structural data, A:111
thermal models, sulfides, B9:6-9
thermophiles
bacterial cells, B2:5-6
vs. depth, B2:14
thin sections, composition, A:94-95
thorium logs, vs. depth, A:132, 231
thorium-230/uranium-234 ratio
geochronology, B4:1-15
massive sulfides, B4:14-15
vs. protactinium-231/uranium-235 ratio, B4:10, 12
tin, hydrothermal alteration, A:39
titanite
Deep Copper Zone, A:77
photomicrograph, A:95
veins, A:75
titanium
clay mineralogy, B6:7, 9
immobility, A:99, 101
mass balance, A:98
pillow lava, A:94
titanium oxide
basalts, A:95, 215-216
clay minerals, B6:6, 23
vs. depth, A:97
vs. loss on ignition, A:98
vs. magnesium number, A:217
See also aluminum oxide/titanium oxide ratio; zirconium/titanium oxide ratio
toluene, sediments, A:282
tourmaline, lithologic units, A:267
trace elements
chlorite, B6:19
clay minerals, B6:6, 24
pore water, B1:1-16
Trans-Atlantic Geotraverse
permeability and electrical and thermal properties, B8:1-42
sulfide mineral chemistry and petrography, B5:1-34
tremolite
photograph, A:100
photomicrograph, A:100
triple junctions, spreading centers, A:7
turbidites
formation microscanner imagery, A:135
geology, A:11-13
Lithofacies A, A:54-56
lithologic units, A:44-53, 163-168; B10:10
photograph, A:55, 73, 77, 85, 211
turbidites, calcareous fine-grained sand to silt, lithologic units, A:210, 266-267
turbidites, carbonate altered silt to clay, lithologic units, A:265-266
turbidites, fine-grained sand, lithologic units, A:265
turbidites, interbedded fine-grained, lithologic units, A:208, 263, 265
turbidites, mud, lithologic units, A:208
turbidites, sand-rich, lithologic units, A:208-209, 265
turbidites, silt to clay, lithologic units, A:209
turbidites, silty, lithologic units, A:209, 266
Two Wells Sandstone, fatty acids, B3:17

 

Unit III, clastic sulfides, A:58-61
Unit V, massive sulfides, A:61-73
Unit VI, sulfide feeder zone, A:73-78
uranium, massive sulfides, B4:3-5
uranium logs, vs. depth, A:132, 231
uranium-234. See thorium-230/uranium-234 ratio
uranium-235. See protactinium-231/uranium-235 ratio
uranium-238, vs. depth, B4:13

 

vanadium, mass balance, A:98
variolites
mass balance, A:96, 98-99
pillow lava, A:94
vein density
correlation, A:111
vs. depth, A:104; B9:8, 24; B10:10
vein dip
distribution, A:104
vs. depth, A:105
vein networks, massive sulfides, B9:1-25
vein width, distribution, A:104
veinlets, anhydrite
photograph, A:108
structures, A:169
veinlets, chlorite, photograph, A:106
veinlets, sulfide, photograph, A:105-106
veinlets, sulfide mineralization, A:71
veins
basalts, A:213, 271
Deep Copper Zone, A:76-78
geometry, A:74-76
hydrothermal circulation, A:11, 73-87; B10:9-10, 37
photograph, A:73-75, 77-79, 100, 218; B10:36-37
pillow lava, A:94
sills, A:93
structural data, A:107-112, 216-217, 272-273
See also actinolite; albite; paleoveins; pyrite veins; sulfide veins
veins, anhydrite, photograph, A:85
veins, chlorite, photograph, A:92
veins, crack-seal, structural data, A:111; B10:10, 37
veins, en echelon, photograph, A:80
veins, extension, structural data, A:107-112; B9:4-9
veins, pyrite, photograph, A:68, 105
veins, pyrrhotite, photograph, A:109
veins, quartz + chalcopyrite, photograph, A:92-93, 107
veins, quartz + sulfide, photograph, A:93
veins, quartz, photomicrograph, A:95
veins, stockwork, photograph, A:77
veins, sulfide
formation microscanner imagery, A:133-136
photograph, A:106
with sediments, A:75-76
velocity
sediments, B7:6-8, 17-19
See also compressional wave velocity
velocity logs, vs. depth, A:132, 231
vents
bacterial profiles, B2:1-18
flow, B10:13-14
hydrothermal circulation, A:7-9
vents, active, location, A:197
vesicles
basalts, A:271-272
sills, A:92
volcanic glass
basalts, A:272
enrichment/depletion diagram, A:99
isocons, A:99
photograph, A:93
photomicrograph, A:94-95
pillow lava, A:93-94
volcanic rocks, geology, A:12
volcanism, basalt pillows, A:257
vuggy textures, massive sulfides, A:270
vugs, sulfide mineralization, A:71

 

weathering, hydrothermal circulation, A:10
well-logging
shore-based log processing, A:236
shore-based processing, A:143
Site 1035, A:130-134
Site 1036, A:188-196
Site 1037, A:227-231
Site 1038, A:292-293
Whitewater Shale, fatty acids, B3:17
wood, lithologic units, A:208
wurtzite, hydrothermal circulation, A:11

 

X-ray diffraction data, minerals, A:168-169, 213, 270

 

yttrium
mass balance, A:99
See also neodymium/yttrium ratio; niobium-
zirconium-yttrium plots

 

zeolites, basalts, A:212-214, 271
zinc
clay minerals, B6:6, 24
depletion, A:99
enrichment, A:99
leaching, A:102
mass balance, A:98
massive sulfides, B5:5-6
sulfides, A:88-89
vs. depth, A:89, 97
See also copper-iron-zinc plots; copper-lead-zinc plots
zirconium
immobility, A:101
mass balance, A:98
See also niobium-zirconium-yttrium plots
zirconium/titanium oxide ratio, vs. aluminum oxide/
titanium oxide ratio, A:102
zoisite, photomicrograph, A:100
zonation, alteration zones, A:81-87
zoning
foraminifers, A:212
metals, A:89
Zoophycus
Lithofacies B, A:56
lithologic units, A:163-165
photograph, A:165
Zoophycus marker horizon, lithologic units, A:163-165