SUBJECT INDEX

A

Acinetobacter junii, microbial populations, B6:6, 10
actinolite, alteration, A13:10; B1:7–8
high-temperature alteration, B5:8
lithologic units, A13:3–4
petrography, A13:5
photomicrograph, A13:16, 20–21, 29, 31; B5:21
scanning electron backscattered electron images, B7:20
actinolite, fibrous
alteration, A1:11
photomicrograph, A13:30
age, vs. natural remanent magnetization, B7:14
aggregates, basalt, A1:9
albite, alteration, A13:8; B1:7–8
albite twinning, petrography, A12:4; A15:5
alteration
basalt, A1:9–11; A15:7–9; B1:6–9
correlation coefficients, B5:27–29
geochemistry, B5:8–11, 25
greenschist facies, A13:7–8
isocon plots, B1:28
mass change terms and alteration intensity, B5:26
photograph, A11:26; A13:33
photomicrograph, A4:9; A7:18, 25; A9:19; A12:23–24
pillow basalt, A4:3–4; A5:3–4
remanent magnetization, B7:8
Site 1152, A3:7–8
Site 1153, A4:3–4
Site 1154, A5:3–4
Site 1155, A6:5–7
Site 1156, A7:5–8
Site 1157, A8:7–8
Site 1158, A9:5–7
Site 1159, A10:3–4
Site 1160, A11:7–10
Site 1161, A12:8–9
Site 1162, A13:7–11
Site 1163, A14:4–5
Site 1164, A15:7–9
See also halos; hydrothermal alteration; maghemitization; oxidation; palagonitization; recrystallization
alteration, high-temperature, greenschist facies, B5:8
alteration, low-temperature
basalt, A1:9–10; A6:5–7; A13:9–10; A15:8–9; B5:1–29
lithologic units, A7:5–8
pillow basalt, A5:2–3
alteration facies, composition, A11:8–10
alteration Facies I, composition, A11:8–9
alteration Facies II
composition, A11:9–10
photograph, A11:16
alteration front
photograph, A1:36; A3:20
photomicrograph, A1:37, 39; A6:29
aluminum, alteration, B5:9
aluminum oxide
alteration, B1:7–8
basalt, A3:10; A6:10–11; A7:11; A8:11; A9:8–10; A10:5–6; A11:12–13; A13:14
melting regime, B1:14–15
vs. magnesium oxide, A3:24; A4:17; A5:17; A6:36; A7:33; A8:51; A9:21; A10:24; A11:35; A12:41; A13:41; A14:28; A15:42; B1:35
See also calcium oxide/aluminum oxide ratio
anorthite, composition, B2:4
aragonite, photomicrograph, A6:28; B5:19
Australian Antarctic Depth Anomaly
dynamics, B1:18–21
evolution, B1:1–40
origin, B1:2–3
Australian Antarctic Discordance
dynamics and origin, B1:16–19
evolution, B1:1–40
geology, A1:1–49
lead-206/lead-204 ratio vs. longitude, A1:41
mantle heterogeneity, B3:1–24
petrogenesis, B2:23
Australian Antarctic Discordance Segment 4, mantle domains, A14:8
Australian Antarctic Discordance Segment 5, mantle domains, A15:11–12
Australian Antarctic Discordance Segment B4, domain distribution, A1:14
Australian Antarctic Discordance Segment B5, domain distribution, A1:14
Australian Antarctic Mantle Anomaly, origin, B1:2–3

B

Bacillus/Clostridium group, microbial populations, B1:6; B6:7
bacteria, iron-oxidizing, microbial populations, B6:8
barium
basalt, A1:12; A6:10–12; A7:11; A8:11; A11:13; A12:11; A14:8
geochemical signals, B1:16–19
isotopic boundary, B1:4–5
mantle domains, A1:13; A13:14
pillow basalt, A4:6–7; A5:7
vs. lanthanum, B1:36
vs. magnesium oxide, A3:25; A4:18; A5:18; A6:37; A7:34; A8:52; A9:22; A10:25; A11:36; A12:42; A13:42; A14:29; A15:43
vs. zirconium, B1:36
vs. zirconium/barium ratio, A1:4–5, 43–44; A3:26; A4:19; A5:19; A6:38; A7:35; A8:53; A9:23; A10:26; A11:37; A12:43; A13:43; A14:30; A15:44; B1:32
Zone A, A8:12
See also zirconium/barium ratio
barium/zirconium ratio, mantle domains, A4:7; A5:7
basalt
abundance in breccia, A7:27
alteration, A3:7–8; A8:8; A14:4–5; A15:7–9; B1:6–9
geochemistry, A3:31; A4:22; A5:22; A6:41–42; A7:38–39; A8:56; A9:26; A10:29; A11:41–42; A12:47; A13:46; A14:33; A15:48
low-temperature alteration, A13:9–10; B3:1–29
magnetic properties, B1:9–10; B7:1–25
mantle heterogeneity, B3:2–4
microbial populations, B6:1–27
petrogenesis, B2:23
petrography, A1:8–9; A8:5–6; A12:6–7; B2:13–15
petrology and geochemistry, B1:10–19
photograph, A4:12; A7:28, 30; A8:33, 39; A10:13; A11:22–24; A14:19–21, 24
photomicrograph, A8:42; A9:18; A14:22
See also clay/basalt contact; pillow basalt
basalt, altered, abundance, A15:46
basalt, aphyric
lithologic units, A3:4–6; A6:4–5; A8:3–7; A9:3–5; A10:2–3; A11:3–4; A12:3–8; A14:3–4; A15:3–7
petrography, A13:4–6; A15:5–6
photograph, A4:11; A11:20; A12:15, 18, 25, 29; A14:10–11, 23; A15:13, 20–21, 28–30
photomicrograph, A8:16; A12:23, 27; A14:13–16; A15:31, 36
basalt, aphyric massive, lithologic units, A11:4–5
basalt, holocrystalline, photograph, A3:14
basalt, massive
petrology, A1:7
photograph, A1:23; A11:16, 29
photomicrograph, A11:31
basalt, microcrystalline aphyric
petrography, A12:7
photograph, A1:27
basalt, phyric
lithologic units, A12:7–8
petrography, A13:4–6
photograph, A1:36
basalt, plagioclase phyric, lithologic units, A13:4
basalt, plagioclase–olivine aphyric, photograph, A12:14
basalt, plagioclase–olivine phyric
lithologic units, A6:3–5; A7:4–5; A8:3–7; A9:3–5; A11:5–6; A12:3–8; A14:3; A15:4–7
petrography, A12:3–8; A13:4–6; A15:4–6
photograph, A1:31; A8:24, 27, 31; A12:13, 16–17, 20, 26; A13:24, 33; A15:18, 22
photomicrograph, A12:28; A15:35
basement, lithologic units, A15:3–7
bathymetry, residual depth anomaly, A1:46
bedding, dip, A8:10
biodegradation, volcanic glass, A6:30
biosphere, subsurface
exploration, A1:5
microbial populations, B1:5–6
box texture
lithologic units, A9:3–5
photomicrograph, A9:12–14
breccia
alteration, A1:10
calcite and basalt abundance, A7:27
high-temperature alteration, B5:8
lithologic units, A12:3–8; A14:4
petrography, A8:4–5; A12:5–8
petrology, A1:8
photograph, A15:20–21
breccia, basalt–carbonate, lithologic units, A8:3–7
breccia, basaltic
alteration, A12:8–9
lithologic units, A15:4–7
petrography, A15:6–7
photograph, A1:25; A7:30; A8:14; A12:21, 29, 32, 34; A15:28–30
photomicrograph, A12:22, 24, 27–28, 30, 33; A15:31–32, 39
breccia, calcareous, photomicrograph, A8:21–23
breccia, calcareous-clay cemented hyaloclastite, photograph, A14:10
breccia, calcite-cemented basaltic, photograph, A14:17–18
breccia, carbonate-cemented basalt, photograph, A7:17
breccia, dolomite-cemented basalt
lithologic units, A13:4–7
petrology, A1:8
photograph, A13:34, 36
photomicrograph, A13:22–23
breccia, glass-rich, photograph, A12:31
breccia, hyaloclastite, photograph, A10:7
breccia, posteruptive carbonate-cemented, petrology, A1:8
breccia, talus, lithologic units, A7:3–5
breccia, volcanic, petrology, A1:8
brecciation
lithologic units, A7:4–5
photograph, A7:28
brittle deformation, alteration, A13:9

C

calcarenite
lithologic units, A14:4
petrography, A8:4–5
photograph, A8:18
photomicrograph, A8:20
calcite
alteration, A4:3–4; A8:7–8; A11:8–10; A12:8–9; A14:4–5; A15:7; B5:7
alteration generations, A7:5–8
petrography, A8:4–6
photograph, A4:12; A7:22; A11:24, 29–30; A14:10
photomicrograph, A6:16, 23, 26; A8:15, 20, 46; A15:14, 17, 26, 33–34; B5:16, 18, 19
precipitation, A8:8
calcite, cryptocrystalline, alteration, A1:11
calcite, first–second generations, abundance, A7:27
calcite, high-magnesium, geochemistry, A13:14
calcite, micritic
abundance in breccia, A7:27
petrography, A8:7
photograph, A6:26–27; A7:17, 20–21, 28; A8:19, 33
photomicrograph, A6:27; A8:37; A14:22
calcite, recrystallized, photomicrograph, A8:36–37, 40
calcite, secondary, petrography, A8:4
calcite, sparry
alteration, A11:9–10
petrography, A8:7
photograph, A6:26; A7:20; A14:21
photomicrograph, A8:37–38, 40; A14:22
calcium oxide
alteration, B1:7–8
basalt, A3:10; A7:11; A10:5–6; A13:14
melting regime, B1:14–15
pillow basalt, A4:7
vs. magnesium oxide, A3:24; A4:17; A5:17; A6:36; A7:33; A8:51; A9:21; A10:24; A11:35; A12:41; A13:41; A14:28; A15:42; B1:35
calcium oxide/aluminum oxide ratio
basalt, A3:10; A6:11; A8:11; A9:8–10; A11:12–13; A12:11; A14:7–8
olivine, B2:5
pillow basalt, A5:7
vs. magnesium oxide, A3:24; A4:17; A5:17; A6:36; A7:33; A8:51; A9:21; A10:24; A11:35; A12:41; A13:41; A14:28; A15:42; B1:35; B2:20
Zone A, A8:12
carbon dioxide
enrichment cultures, B6:6
submarine basaltic volcanic glass, B4:3
vs. water content, B5:6
carbonate compensation depth, sediments, A4:6
carbonates, alteration, A4:3–4
carbonates, micritic, lithologic units, A7:3–5
cataclasite
alteration, A1:11; A13:8–9
lithologic units, A13:4
petrography, A13:5
cataclasite, basaltic, photograph, A13:32, 38
cavities, calcite-filled, photograph, A4:11
cavities, lithologic units, A13:6
cavities, miarolitic
lithologic units, A14:3
petrography, A8:4–6; A15:5–6
photomicrograph, A8:15, 28–29; A12:17; A14:15; A15:25–26
cesium, alteration, B1:8
chalcopyrite
alteration, A12:9
photomicrograph, A12:40
chilled margin
alteration, A9:6–7; A11:9–10; A12:8–9; A13:10–11; B5:7
lithologic units, A9:3–5; A10:2–3; A11:4–7; A13:3–7; A14:3; A15:4–7
petrography, A8:4–6; A12:5; A15:6
photograph, A1:22; A1:34; A3:14; A8:14, 31; A10:8, 17; A12:20, 22, 29, 37; A13:36; A14:9–10, 16; A15:18, 27, 30
photomicrograph, A12:27–28, 30; A13:16, 22
pillow basalt, A4:3; A5:3
chilled margin, glassy, photomicrograph, A8:30
chilled margin, spherulitic, photograph, A8:17, 19
chloride
submarine basaltic volcanic glass, B4:3–4
vs. potassium, B4:7
chloride/potassium ratio, submarine basaltic volcanic glass, B4:4
chlorite
alteration, A1:11; A11:9–10; A13:8–11; B1:7–8
high-temperature alteration, B5:8
lithologic units, A13:3–4
petrography, A13:5
photograph, A11:16, 29
photomicrograph, A8:36; A11:28; A13:16, 21, 25, 27, 29
chlorite layers, dolomite, A13:9
chrome spinel
basalt, A1:8–9
lithologic units, A6:4
petrography, A15:5
photomicrograph, A6:19–20
chromium
basalt, A3:9; A6:10–11; A7:11; A8:11; A9:8; A10:5; A11:12; A14:7; A15:11
vs. magnesium oxide, A3:25; A4:18; A5:18; A6:37; A7:34; A8:52; A9:22; A10:25; A11:36; A12:42; A13:42; A14:29; A15:43
chromium oxide, alteration, B5:10
clast/matrix ratio, breccia, A13:9–10
clast matrix, petrography, A13:6
clasts
alteration, A12:8–9
high-temperature alteration, B5:8
lithologic units, A13:4–7
petrography, A13:4–6
photograph, A10:7; A15:20
photomicrograph, A8:21
clasts, altered basaltic, photomicrograph, A13:22
clasts, aphyric pillow basalt, photograph, A15:27
clasts, basalt
lithologic units, A13:6–7
petrography, A12:5–7
photograph, A1:25–26; A7:13, 20–21; A8:14; A12:22, 32; A14:10, 17–18; A15:21
photomicrograph, A8:41; A12:27–28, 30, 33, 36; A13:37
summary, A12:45
clasts, basalt–micritic limestone, lithologic units, A7:4–5
clasts, basaltic glass, photograph, A12:32
clasts, basaltic rubble, petrography, A8:3–4; A12:3–4
clasts, breccia
alteration, A1:11; A13:7–8
lithologic units, A8:3–7; A12:7–8
clasts, calcite, photograph, A7:22
clasts, clay
photograph, A12:29
photomicrograph, A12:27
clasts, epidote, lithologic units, A13:4
clasts, feldspar, photograph, A12:22
clasts, glassy basalt, photograph, A12:34
clasts, lithic
alteration, A14:4–5
petrography, A15:6–7
photograph, A14:21
photomicrograph, A8:38
clasts, palagonite
lithologic units, A7:4
petrography, A12:5–6
photograph, A7:20; A12:29; A13:34
photomicrograph, A8:22–23; A12:36; A13:23
clasts, plagioclase–olivine phyric basalt, photograph, A8:18
clasts, polymict basalt, lithologic units, A7:3–5
clasts, volcanic glass, petrography, A12:5–6
clay
alteration, A5:4; A8:7–8; A10:3–4; A11:7–10; A12:8–9; A13:10–11; A14:4–5; A15:8–9; B1:7–8
composition, A7:9–10; A9:8; A14:6–7; A15:10
lithologic units, A11:4–7; A15:3–7
petrography, A8:3–4, 7; A13:5
photograph, A8:19, 32; A10:7, 13, 17–18; A12:34, 37, 39; A13:36; A14:10; A15:30, 35, 37
photomicrograph, A8:20, 29, 34–36; A10:10–11, 14–15; A11:28; A12:18, 22, 33, 35; A13:19; A14:13–15; A15:32, 36
pillow basalt, A5:3
Sedimentary Unit A, A4:5
sediments, A5:6
clay, calcareous, lithology, A6:9
clay, carbonate-rich, composition, A10:5; A11:11–12; A15:10
clay, micritic, photograph, A14:24
clay, siliceous
composition, A8:10–11; A12:10; A13:13
lithology, A6:8–9
clay, silty
composition, A11:11–12
sediments, A5:6
clay/basalt contact, photomicrograph, A8:35
clay minerals, alteration, A1:10
cleavage planes, photomicrograph, A9:19
clinopyroxene
alteration, A7:5–8; A13:8–11
basalt, A1:8–9
lithologic units, A3:5–6; A6:4–5; A9:4–5; A11:4–7; A14:3; A15:3–7
mid-ocean ridge basalt, B2:4
petrography, A12:4; A13:5
photomicrograph, A1:32; A3:15, 18; A7:25; A8:29; A9:16, 19; A11:14, 25; A12:17–18; A13:20–21, 27, 30, 35; A14:14; A15:14, 16, 25–26; B5:21
pillow basalt, A5:3
scanning electron backscattered electron images, B7:20
clinopyroxene, anhedral
petrography, A8:3–4
photomicrograph, A3:16; A5:13
clinopyroxene, elongate, photomicrograph, A8:28
clinopyroxene, euhedral, photomicrograph, A8:15; A14:15
clinopyroxene, granular, lithologic units, A11:4–5
clinopyroxene microphenocrysts, euhedral, photomicrograph, A15:15
clinopyroxene phenocrysts
alteration, B5:7
basalt, A1:8–9
petrography, A8:6
coercivity
basalt, B7:6
hysteresis ratios, B7:19
color, sediments, A6:35; A8:50
concretions
alteration, A8:7
photograph, A12:21
photomicrograph, A8:20
contamination tracers, microbial populations, B6:8, 27
cooling curves, mid-ocean ridge basalt, B7:4–9
cooling joints, lithologic units, A11:4
coring, summary, A1:47
correlation coefficients, alteration, B5:27–29
cracks
photograph, A12:39; A13:36
photomicrograph, A9:19; A12:19
See also microcracks; shrinkage cracks
crystal fractionation, olivine, B1:14
cummingtonite, photomicrograph, A13:20, 30
Curie temperature
mid-ocean ridge basalt, B7:4–9
vs. natural remanent magnetization, B7:15
Cytophaga/Flavobacterium/Bacteroides group, microbial populations, B1:6; B6:7, 14–15, 17

D

Day plot, basalt, B7:6–7
deformation
basalt, A6:7–8
See also brittle deformation
demagnetization, alternating-field, basalt, B7:6, 17
demagnetization, thermal, mid-ocean ridge basalt, B7:4–9, 17
dendrites
alteration, A15:7–8
lithologic units, A13:6
photomicrograph, A6:29–30
dendritic texture, alteration, A7:5–8
depth anomalies, residual
bathymetry, A1:46; B3:15
isotopes, B3:5–6
diabase
alteration, A1:11; A9:6–7
lithologic units, A9:5
photomicrograph, A9:17, 19
dip, bedding, A8:10
dissolution, petrography, A8:7
DNA bands, microbial populations, B6:6–8, 13
dolomite
alteration, B5:7
geochemistry, A13:14
lithologic units, A13:6
matrix, A13:7
photograph, A13:34
photomicrograph, A13:22–23, 37
domain structure, basalt, B7:6
Dredge 10, mantle domains, B1:11–12

E

enrichment cultures, rocks, A3:30; A4:21; A5:21; A6:40; A7:37; A8:55; A9:25; A10:28; A11:40; A12:46; A13:45; A14:32; A15:47; B6:3–4
enstatite, composition, B2:4
entrainment model, mantle, B1:16–19
epidote, lithologic units, A13:4

F

fluid inclusions, lithologic units, A7:5
fracture + vein density
basalt, A6:7–8; A7:9; A8:9; A11:10; A13:12; A14:6; A15:7
hole core section, A7:29; A8:47; A14:25
fracture fillings
127E Fracture Zone, mantle domains, B1:12, 18, 20–21; B3:5–10
alteration, A4:3–4; A7:5–8; B1:7–8; B5:7, 11
lithologic units, A6:5
petrology, A1:7–8
photograph, A1:24, 34–35; A6:14–15; A10:17; A11:29
photomicrograph, A11:28
fracture zones, mantle, B1:26
fractures
alteration, A6:5–6; A8:8; A9:7; A10:3–4; A14:4–5
basalt, A6:7–8; A7:9; A11:10
microbial populations, B6:9–10
photograph, A5:14; A6:24; A7:23; A11:22; A12:37, 39; A14:19, 24; A15:27
photomicrograph, A7:24; B5:20
structure, A13:12; A14:5–6

G

gabbro, alteration, A1:11
gamma Proteobacteria, microbial populations, B1:7; B6:6–10, 14–19
geochemical signals, entrainment model, B1:16–19
geochemistry
basalt, B1:10–19
Site 1152, A3:9–11
Site 1153, A4:6–7
Site 1154, A5:6–7
Site 1155, A6:9–12
Site 1156, A7:10–12
Site 1157, A8:10–12
Site 1158, A9:8–10
Site 1159, A10:5–6
Site 1160, A11:12–13
Site 1161, A12:10–11
Site 1162, A13:14
Site 1163, A14:7–8
Site 1164, A15:11–12
glass rinds
alteration, A4:4; A7:5–8; A11:7–10
lithologic units, A3:5–8; A9:3–5; A14:3–4
photograph, A14:9; A15:27
pillow basalt, A4:3; A5:2–3
glass shards
alteration, A15:9
petrography, A8:5
photomicrograph, A8:21, 38; A15:38–39
glomerocrysts
basalt, A1:9
lithologic units, A3:5–6; A6:3–5; A7:5; A9:3–5; A11:3–7; A14:4
petrography, A8:5–6; A12:3–8; A15:4–6
photomicrograph, A1:29; A7:16; A11:19; A14:12, 16; A15:24
glomerocrysts, olivine, photomicrograph, A9:15
glomerocrysts, plagioclase + olivine, photomicrograph, A8:25
glomerocrysts, plagioclase, photomicrograph, A13:19
Gondwana, lava, B1:19–21
grain size, groundmass, A9:5
gravity maps, satellite, mantle, B1:26
greenschist facies
alteration, A1:11; A13:7–8
high-temperature alteration, B5:8
lithologic units, A13:3–4
groundmass
alteration, A1:9–10; B5:7
basalt, A1:9
grain size, A9:5
lithologic units, A3:5–7
pillow basalt, A4:3
groundmass, intersertal, photomicrograph, A5:13

H

hafnium
vs. distance, B3:17
vs. lead isotopes, B3:19
See also lutetium/hafnium ratio
hafnium isotopes
depth anomalies, B3:6–7
mantle domains, B1:13
values relative to Indian Ocean mid-ocean ridge basalt mantle/Pacific Ocean mid-ocean ridge basalt mantle boundary, B1:38
vs. lead isotopes, B1:33
vs. neodymium isotopes, B1:34
halos
alteration, A1:9–10; A6:5–6; A7:5–8; A8:8; A11:7–10; A12:8–9; A14:5; A15:8–9
basalt, A10:3–4
lithologic units, A7:4–5
petrography, A15:6–7
photograph, A1:40; A5:14; A7:17, 20, 23; A8:19, 39; A10:12; A11:20, 22, 26, 30; A12:29, 38; A14:18–21, 23–24
photomicrograph, A1:37; A7:26; A11:28; A12:27; B1:27; B5:19
pillow basalt, A5:3–4
halos, concentric, photograph, A1:36; A3:20
hematite
alteration, A12:9
photomicrograph, A12:40
honeycomb texture, sediments, A8:10
hyaloclastite
alteration, A7:5–8; A10:4
lithologic units, A14:4
photograph, A10:18
hydrogen sulfide, enrichment cultures, B6:25–26
hydrothermal alteration, mineral assemblages, A13:10
hysteresis loops, basalt, B7:6–7, 18
hysteresis ratios, mid-ocean ridge basalt, B7:19

I

iddingsite
alteration, A5:4
lithologic units, A6:4–5
igneous petrology
basalt, B1:10–19
mantle domains, A1:48–49
review, A1:6–9
Site 1152, A3:4–7
Site 1153, A4:3
Site 1154, A5:2–3
Site 1155, A6:3–5
Site 1156, A7:3–5
Site 1157, A8:2–7
Site 1158, A9:3–5
Site 1159, A10:2–3
Site 1160, A11:3–7
Site 1161, A12:3–8
Site 1162, A13:3–7
Site 1163, A14:2–4
Site 1164, A15:2–7
inclusions
lithologic units, A11:6–7; A13:3–4
photomicrograph, A11:18; A12:16; A13:17
See also melt inclusions
Indian Ocean mid-ocean ridge basalt mantle isotopic province
domain distribution, A1:14–16
magnesium oxide vs. sodium oxide/titanium oxide ratio, A1:43–44
mantle, B1:3–4
zirconium/barium ratio vs. barium, A1:43–44
Indian Ocean mid-ocean ridge basalt mantle isotopic province/Pacific Ocean mid-ocean ridge ocean mantle isotopic province boundary
evolution, B1:1–40
geology, A1:3–4
hafnium isotopes, B1:38
location, B1:13–14
mantle, B1:18–19
mantle flow, B1:3–4
Indian Ocean mid-ocean ridge basalt sources, depth anomalies, B3:5–10
intergranular texture
lithologic units, A11:5
photograph, A11:16
photomicrograph, A11:17; A12:18
intersertal texture
lithologic units, A3:5–6; A6:5; A14:4
petrography, A8:3–4
photomicrograph, A6:16–17, 20
pillow basalt, A4:3
iron, pillow basalt, A4:7
iron8, vs. Na8, B1:38
iron ions, enrichment cultures, B6:25–26
iron oxide
alteration, B1:7–8
basalt, A3:10; A6:10–11; A7:11; A9:8–10; A10:5–6; A15:11
melting regime, B1:14–15
olivine, B2:5
pillow basalt, A4:7; A5:7
vs. magnesium oxide, A3:24; A4:17; A5:17; A6:36; A7:33; A8:51; A9:21; A10:24; A11:35; A12:41; A13:41; A14:28; A15:42; B2:20
iron oxide, fractionation-corrected, vs. fractionation-corrected sodium oxide, B1:37
iron oxide/magnesium oxide ratio, olivine, B2:6
iron oxyhydroxide
alteration, A1:10; A3:7–8; A4:3–4; A5:4; A6:5–6; A7:5–8; A8:7–8; A10:4; A11:7–10; A12:8–9; A13:10–11; A15:8–9; B1:7–8
lithologic units, A3:5–6; A6:4–5; A9:4–5; A11:4–7; A15:3–7
petrography, A8:3–6
photograph, A1:35, 40; A4:13; A8:39; A10:13; A11:30; A15:37
photomicrograph, A1:37, 39; A4:9; A6:31; A7:18, 25–26; A8:29, 35–36; A10:10–11, 15; A11:15, 25; A12:18; A13:25, 35; A14:13; A15:35–36
pillow basalt, A4:3; A5:3
See also manganese–iron oxyhydroxide
iron staining
lithologic units, A13:6
photomicrograph, A7:24; A9:19; A11:25; A14:13; B5:20
iron sulfide, scanning electron backscattered electron images, B7:20
iron–titanium oxide
magnetic properties, B1:9–10
photomicrograph, A8:28; A12:17; A15:25
scanning electron backscattered electron images, B7:20–21
isochrons, mantle domains, A1:45
isocon plots, alteration, B1:28; B5:22
isotopic boundary
configuration, A1:21
geology, A1:3–4
location, B1:4–5
maps, A1:19
migration, B1:3–4
isotopic signatures
mantle domains, B1:10–14; B2:8–9
See also transitional mid-ocean ridge basalt mantle isotopic signatures

L

lamellar texture, basalt, B7:7
lanthanum
vs. barium, B1:36
vs. lanthanum/samarium ratio, B1:36
vs. samarium, B1:36
lanthanum/samarium ratio, vs. lanthanum, B1:36
lava
lead isotopes, B3:8
mid-ocean ridge basalt, A1:3–49
See also pillow basalt; pillow lava
lead isotopes
along-axis profiles, A1:20
alteration, B1:8
basalt, B1:30
depth anomalies, B3:6–7
lava, B3:8
mantle domains, B1:10–12
mid-ocean ridge basalt, A1:3–5, 12
vs. distance, B3:17, 21
vs. hafnium, B3:19
vs. hafnium isotopes, B1:33
vs. neodymium isotopes, B1:33
lead-204. See lead-206/lead-204 ratio; lead-207/lead-204 ratio; lead-208/lead-204 ratio
lead-206/lead-204 ratio
along-axis profiles, A1:20
vs. lead-208/lead-204 ratio, B1:30–31
vs. longitude, A1:41
vs. zirconium/barium ratio, A1:41
lead-207/lead-204 ratio, along-axis profiles, A1:20
lead-208/lead-204 ratio
along-axis profiles, A1:20
vs. lead-206/lead-204 ratio, B1:30–31
limestone, micritic
lithologic units, A7:3–5
photograph, A1:24; A6:14
lithologic units
Site 1152, A3:4–7, 28
Site 1155, A6:3–5
Site 1156, A7:3–5
Site 1157, A8:3–7
Site 1158, A9:5
Site 1160, A11:3–7
Site 1161, A12:3–9
Site 1162, A13:3–7
Site 1163, A14:2–4
Site 1164, A15:2–7
Unit 1, A3:4–6; A6:3–5; A7:3–5; A11:3–4; A12:3–8; A13:3–4, 6; A14:3; A15:3–7
Unit 2, A3:6–7; A6:4; A7:4–5; A11:4–5; A13:4–7; A14:3–4
Unit 3, A11:5
Unit 4, A11:5–6
Unit 5, A11:6
Unit 6, A11:6–7
Unit 7, A11:7
lithology, summary, B5:24
loss on ignition
alteration, B5:10
vs. distance, B5:23
lutetium/hafnium ratio, geochemical signals, B1:18–19

M

maghemitization, basalt, B7:7–9
magmas
magnesium number, B2:7
nickel oxide, B2:7
olivine, B2:5–7
magnesium, alteration, B5:9
magnesium number
clinopyroxene, B2:4
magmas, B2:7–9
olivine, B2:3, 6–7
vs. nickel oxide, B2:17–18, 21
magnesium oxide
alteration, B1:7–8; B5:10–11
basalt, A1:8–9, 13; A3:9–11; A6:10–11; A7:10–12; A8:11–12; A9:8–10; A10:5–6; A11:12–13; A12:11; A13:14; A14:7–8; A15:11–12
mantle domains, A3:11; A7:12; A12:11; A13:14
melting regime, B1:15
olivine, B2:5
pillow basalt, A1:42; A4:6–7; A5:7
vs. distance, B5:23
vs. major elements, A3:24; A4:17; A5:17; A6:36; A7:33; A8:51; A9:21; A10:24; A11:35; A12:41; A13:41; A14:28; A15:42; B1:35; B2:20
vs. sodium oxide/titanium oxide ratio, A1:4–5, 13, 43–44; A3:26; A4:19; A5:19; A6:38; A7:35; A8:53; A9:23; A10:26; A11:37; A12:43; A13:43; A14:30; A15:44
vs. trace elements, A3:25; A4:18; A5:18; A6:37; A7:34; A8:52; A9:22; A10:25; A11:36; A12:42; A13:42; A14:29; A15:43
See also iron oxide/magnesium oxide ratio
magnetic anomalies, basalt, B7:6
magnetic lineations, maps, A1:19
magnetic properties, basalt, B1:9–10; B7:1–25
magnetic susceptibility, low-field, vs. natural remanent magnetization, B7:16
magnetic susceptibility, mid-ocean ridge basalt, B7:5–9
magnetite
alteration, A1:11; A12:9
photomicrograph, A12:40
magnetite, stoichiometric, mid-ocean ridge basalt, B7:4–9
major elements
alteration, B1:7–8; B5:8–11
alteration isocon plots, B1:28
basalt, A3:9–11, 31; A4:6–7, 22; A5:6–7, 22; A6:9–12, 41–42; A7:10–12, 38–39; A8:11–12, 56; A9:8–10, 26; A10:5–6, 29; A11:12–13, 41–42; A12:10–11, 47; A13:14, 46; A14:7–8, 33; A15:11–12, 48
correlation coefficients of alteration, B5:27–29
melting regime, B1:14–15
vs. magnesium oxide, A3:24; A4:17; A5:17; A6:36; A7:33; A8:51; A9:21; A10:24; A11:35; A12:41; A13:41; A14:28; A15:42; B1:35
manganese–iron oxyhydroxide, photomicrograph, A8:36
manganese oxide
alteration, A1:11; A3:7–8; A4:3–4; A6:5–6; A7:5–8; A9:5–7; A11:7–10; A12:8–9; A13:10; A14:4–5; A15:7–9; B1:7–8; B5:10
lithologic units, A6:4–5; A13:6
photograph, A1:40; A6:25; A8:39; A10:12–13; A11:22; A12:22; A13:34
photomicrograph, A1:39; A6:27–28; A8:20, 36, 40; A10:14; A12:24, 33; A15:26, 37; B1:27
manganese oxide, dendritic, photograph, A3:19
mantle
Australian Antarctic Mantle Anomaly, B1:2–3
flow, A1:3–4
heterogeneity, B3:1–24
plate tectonics, B1:19–21
subduction, B3:10
mantle domains
barium/zirconium ratio, A4:7; A5:7
composition, A1:13–15; A3:10–11
distribution, A1:14–15
isotopic signatures, B1:10–14
magnesium oxide, A12:11; A13:14
sodium oxide/titanium oxide ratio, A7:12; A8:12; A10:6; A11:13
zirconium/barium ratio, A6:11; A9:9–10; A14:8; A15:12
Zone A, A9:10
mantle flow, Indian/Pacific mantle isotopic boundary, B1:3–4
mantle sources, mid-ocean ridge basalt, B2:1–26
Marinobacter cluster, microbial populations, B6:9
massive basalt. See basalt, massive
matrix. See clast/matrix ratio
megacrysts, photograph, A13:24
melt inclusions
lithologic units, A7:5; A11:6–7; A13:3–4
photomicrograph, A11:18; A12:16; A13:17
melting regime
residual arc, B1:20–21
variations, B1:14–15
melts, olivine, B2:5–7, 23
mesostasis
alteration, A1:10; A13:10–11
lithologic units, A11:4; A13:4; A14:3
petrography, A8:4
photomicrograph, A1:32; A3:15–16, 18; A10:14; A13:31; A14:13–14; A15:36
metabasalt
lithologic units, A13:3–4
photomicrograph, A13:16, 19, 31
metabolic products, enrichment cultures, B6:6, 25–26
metadiabase
alteration, A13:8
lithologic units, A13:4
petrography, A13:5
photograph, A13:28
photomicrograph, A13:20, 29
metagabbro
alteration, A13:8
lithologic units, A13:4
petrography, A13:5
photomicrograph, A13:21
metamorphic facies, alteration, A13:9–10
metamorphism, alteration, A1:11
methane, enrichment cultures, B6:6, 25–26
micrite
lithologic units, A7:4–5
photograph, A1:26
microbial degradation, photomicrograph, A1:39
microbial populations
alteration, B1:7
basalt, B6:1–27
detection, B1:5–6; B1:27
growth, B6:23–24
phylogeny, B6:6–8, 14–19
microbiology
rocks, A3:30
Site 1152, A3:8
Site 1153, A4:4–5
Site 1154, A5:4–5
Site 1155, A6:7
Site 1156, A7:8
Site 1157, A8:8–9
Site 1158, A9:7
Site 1159, A10:4
Site 1160, A11:10
Site 1161, A12:9–10
Site 1162, A13:11
Site 1163, A14:5–6
Site 1164, A15:9–10
microcracks, photomicrograph, A11:25; A12:23
microcrystalline texture, petrography, A15:5
microfossils
composition, A13:13
sediments, A10:5
microlites
lithologic units, A13:3–4; A14:4; A15:3
petrography, A15:5–6
photomicrograph, A6:20
pillow basalt, A4:3
microphenocrysts
basalt, A1:8–9
photomicrograph, A6:21
microspheres
basalt, B1:6
detection, A3:30; A13:11; A14:5–6; A15:9
mid-ocean ridge basalt
isotopic boundary, A1:1–49
magnetic properties, B7:1–25
mineral composition, B2:1–26
mineral composition, mid-ocean ridge basalt, B2:1–26
minor elements, basaltic glass, B5:8
mixing, Indian and Pacific Ocean sources, B3:7–8

N

neodymium
alteration, B1:8
vs. distance, B3:17–18, 21
vs. strontium isotopes, B3:19, 22
neodymium isotopes
along-axis profiles, A1:20
alteration, B1:8
mantle domains, B1:12
mantle heterogeneity, B3:1–24
mid-ocean ridge basalt, A1:3–5
vs. hafnium isotopes, B1:34
vs. lead isotopes, B1:33
vs. strontium isotopes, B1:29
neodymium-143/neodymium-144 ratio
along-axis profiles, A1:20
vs. samarium-147/samarium-144 ratio, B3:20
nickel
alteration, B5:9
basalt, A3:10; A6:10–11; A7:11; A8:11; A9:8; A10:5; A15:11
vs. magnesium oxide, A3:25; A4:18; A5:18; A6:37; A7:34; A8:52; A9:22; A10:25; A11:36; A12:42; A13:42; A14:29; A15:43
nickel oxide
magmas, B2:7–9
olivine, B2:3, 6–7
vs. magnesium number, B2:17–18, 21
niobium, geochemical signals, B1:18

O

olivine
actual composition vs. calculated composition, B2:6–7, 22, 26
alteration, A1:10; A8:7–8; A9:6–7; A13:8–11; A14:5
composition, B1:14
equilibrated composition with melt and primary magma composition, B2:5–7, 24–25
lithologic units, A6:3–5; A7:4
mid-ocean ridge basalt, B2:3
photograph, A15:21
photomicrograph, A5:13; A7:16; A8:26; A10:9; A11:15, 19; A13:19; A14:16; A15:32; B5:18
olivine, "Chinese lantern," pillow basalt, A4:3
olivine, skeletal
petrography, A8:5–6
photomicrograph, A8:34; A15:23
olivine microlites, lithologic units, A13:3–4
olivine microphenocrysts
lithologic units, A3:5–6; A9:3–5; A15:3–7
petrography, A8:4
photograph, A12:15; A15:35
photomicrograph, A12:18; A13:26; A14:12
pillow basalt, A4:3
olivine microphenocrysts, skeletal, photomicrograph, A5:11; A8:16
olivine phenocrysts
alteration, A7:5–8; A11:8–10; A15:8–9; B1:7–8; B5:7
basalt, A1:8–9
lithologic units, A3:6–7; A6:4–5; A9:3–5; A10:2–3; A11:4–7; A14:3; A15:3–7
petrography, A8:3–7; A12:3–8; A13:5–7
photomicrograph, A8:46; A13:20, 25, 30; A15:14, 34
pillow basalt, A5:2–3
olivine phenocrysts, iddingsitized
photograph, A8:39
photomicrograph, A3:21; A7:19
olivine phenocrysts, skeletal, photomicrograph, A1:29; A8:25
on-axis samples, isotopes, B3:8–9
ooze, calcareous
Sedimentary Unit B, A4:5
sediments, A5:6
oscillatory zoning
petrography, A13:5
photomicrograph, A9:16; A13:19
overgrowths
photomicrograph, A13:18
pillow basalt, A5:3
oxidation
alteration, A8:8; A11:7–10; A14:5
basalt, A10:3–4; B7:7
petrography, A12:6–7
remanent magnetization, B7:8
oxidation rims, alteration, A10:3–4

P

Pacific Ocean mid-ocean ridge basalt mantle isotopic province domain distribution, A1:14–16
magnesium oxide vs. sodium oxide/titanium oxide ratio, A1:43–44
mantle, B1:3–4
zirconium/barium ratio vs. barium, A1:43–44
See also Indian Ocean mid-ocean ridge basalt mantle isotopic province/Pacific Ocean mid-ocean ridge basalt mantle isotopic province boundary
Pacific Ocean sources, depth anomalies, B3:5–10
palagonite
alteration, A1:10–11; A4:4; A6:5–7; A7:5–8; A9:5–7; A13:11; B1:7–8
lithologic units, A6:4–5; A11:4; A13:6; A14:3–4
petrography, A8:5; A15:6–7
photograph, A1:38; A4:14; A7:21–22, 28; A8:32; A10:7, 16, 18; A11:27; A12:21, 31; A14:9–10, 17, 24; A15:18, 21, 28, 37
photomicrograph, A1:39; A6:29, 31; A8:44; A12:28; A13:22; A15:31, 39; B5:19
See also clasts
palagonitization
alteration, A4:4; A15:9
composition, A11:12
photograph, A7:22
photomicrograph, A6:29; B5:16
partial melting, basalt, B2:23
petrography, basalt, A1:8–9; B2:13–15
phenocrysts
alteration, A1:9–10; B5:7
lithologic units, A7:5
phosphorus oxide, alteration, B5:10
phylogeny, microbial populations, B6:6–8, 14–19
pillow basalt
alteration, A4:3–4; A5:3–4; A14:5
lithologic units, A9:3–5
magnetic properties, B1:9–10; B7:4–9
petrology, A1:7
photograph, A1:22
photomicrograph, A5:12
scanning electron backscattered electron images, B7:20
pillow basalt, aphyric
lithologic units, A11:3–4
lithology, A4:3
pillow basalt, plagioclase–olivine phyric
lithology, A5:2–3
photograph, A1:28; A5:8
pillow lava
microbiology, A3:8
photograph, A14:9
pillow margin
alteration, A15:7–8
photograph, A4:15; A6:15, 24–25; A10:16; A15:37
pillow margin, spherulitic, photograph, A1:35; A4:13
pillow rinds, palagonitized, alteration, A1:10–11
pillow rinds, photograph, A1:38; A3:19; A4:14–15
plagioclase
alteration, A13:10–11
lithologic units, A6:3–5; A7:4
mid-ocean ridge basalt, B2:4
photograph, A10:8; A13:28
photomicrograph, A3:13, 21; A4:9–10; A6:32; A7:16, 25; A8:16, 25, 30, 45; A9:12–14, 19; A11:14, 19; A12:19, 23–24; A13:17–18, 29, 35; A14:13, 16; A15:16, 19, 23, 25; B5:20
scanning electron backscattered electron images, B7:20
sediments, A4:5; A5:6
See also albite; albite twinning; anorthite; oscillatory zoning
plagioclase, acicular
petrography, A8:3–4
photomicrograph, A6:22; A8:27
plagioclase, euhedral, photograph, A1:31
plagioclase, partially resorbed, photomicrograph, A5:10
plagioclase, prismatic, photomicrograph, A1:29; A3:16; A5:13; A8:25; A11:17
plagioclase, sieve-textured, photomicrograph, A1:30; A7:15
plagioclase, skeletal
basalt, A1:9
photomicrograph, A14:13
plagioclase, tabular, photomicrograph, A15:15, 24
plagioclase laths, photomicrograph, A14:14
plagioclase megacrysts, photograph, A13:24
plagioclase microlites, lithologic units, A14:4
plagioclase microphenocrysts, photomicrograph, A9:16; A14:12
plagioclase microphenocrysts, partially resorbed, photomicrograph, A3:17
plagioclase phenocrysts
alteration, A7:5–8; A8:8; A11:8–10; A15:8–9; B1:7–8; B5:7
basalt, A1:8–9
composition, B2:19
lithologic units, A3:5–6; A6:4–5; A9:3–5; A11:3–7; A14:3; A15:3–7
petrography, A8:3–7; A12:3–8; A13:5–7
photomicrograph, A5:9–10; A6:17–21; A7:14, 18, 24; A8:35; A9:14; A11:18, 25; A15:35
pillow basalt, A5:2–3
plagioclase phenocrysts, prismatic
lithologic units, A10:2–3; A11:3–4
petrography, A8:5–6
plagioclase phenocrysts, tabular, photograph, A15:13
plagioclase xenocrysts, lithologic units, A13:3–4
plate tectonics
mantle, B1:19–21
Southeast Indian Ridge, B1:1–40
plumose quench texture
lithologic units, A3:5–6; A14:4; A15:3
petrography, A8:4; A12:4
photograph, A12:20
photomicrograph, A1:32; A3:15, 18; A14:14; A15:14–15
potassium
alteration, B1:8; B5:9
vs. chloride, B4:7
See also chloride/potassium ratio
potassium oxide
alteration, B1:7–8
basalt, A10:5; A15:11
melting regime, B1:14–15
pillow basalt, A4:6; A5:7
precipitation, calcite, A8:8
Pseudoalteromonas flavipulchra, microbial populations, B6:7, 9
Pseudomonas stutzeri, microbial populations, B6:9–10
pseudomorphs
basalt, B7:7
lithologic units, A12:7–8; A13:4
photomicrograph, A8:34; A12:27; A13:16
scanning electron backscattered electron images, B7:20
pseudosingle domain, basalt, B7:7
pyrite
alteration, A12:9
photomicrograph, A12:40

Q

quartz
alteration, A11:7–10; A12:8–9; A14:4–5
lithologic units, A13:4
petrography, A15:7
photograph, A10:17
photomicrograph, A13:31
sediments, A4:5; A5:6
quench crystals
lithologic units, A10:3
petrography, A8:3–4
photograph, A10:8; A15:30
photomicrograph, A8:21; A10:9, 14; A13:18; A15:17
quench crystals, spherulitic, lithologic units, A15:4–7
quench texture
alteration, A7:5–8; A10:4; A11:8–10
petrography, A12:4–5
photograph, A11:27; A13:33
photomicrograph, A8:27, 30; A15:23
pillow basalt, A5:3
quench zone
alteration, A13:8
photomicrograph, A5:12; A6:22

R

recrystallization
petrography, A8:7
photograph, A6:27
remanent magnetization, characteristic, mid-ocean ridge basalt, B7:9
remanent magnetization, natural
mid-ocean ridge basalt, B7:4–9
vs. age, B7:14
vs. Curie temperature, B7:15
vs. low-field magnetic susceptibility, B7:16
remanent magnetization, saturation, hysteresis ratios, B7:19
residual arc, mantle, B1:16–17
resorption, photomicrograph, A6:17; A15:19
rift tip tectonic environment, basalt, A12:11
rocks, enrichment cultures, A3:30; A4:21; A5:21; A6:40; A7:37; A8:55; A9:25; A10:28; A11:40; A12:46; A13:45; A14:32; A15:47
rubble, alteration, A9:5–7
rubble, basaltic
alteration, A12:9
lithologic units, A8:3–7; A12:3–8; A15:4–7
petrography, A15:4–6
petrology, A1:7
photograph, A12:38; A15:20
rubidium, alteration, B1:8; B5:9

S

samarium
vs. lanthanum, B1:36
See also lanthanum/samarium ratio
samarium/neodymium ratio
depth anomalies, B3:7
volcanic glass, B3:5
samarium-147/neodymium-144 ratio, vs. distance, B3:18
samarium-147/samarium-144 ratio, vs. neodymium-143/neodymium-144 ratio, B3:20
sand
photograph, A15:30
sediments, A4:5
secondary minerals, photomicrograph, A12:40; A13:20
Sedimentary Unit A, clay, A4:5
Sedimentary Unit B, calcareous ooze, A4:5
sediments
lithologic units, A14:4
lithology, A5:6
petrography, A8:6–7
photograph, A14:11
Site 1153, A4:5–6
Site 1154, A5:6
Site 1155, A6:8–9
Site 1156, A7:9–10
Site 1157, A8:9–10
Site 1158, A9:8
Site 1159, A10:5
Site 1160, A11:11–12
Site 1161, A12:10
Site 1162, A13:13
Site 1163, A14:6–7
Site 1164, A15:10
zoning, A6:35
sediments, calcareous
alteration, A14:4–5
color, A8:50
lithologic units, A7:3–5
photograph, A7:13
sediments, interpillow, petrology, A1:7–8
sediments, lithic-rich calcareous, photograph, A8:19
sediments, pelagic, photograph, A3:19
sediments, siliceous, color, A8:50
seismic profiles
Site 1152, A3:23
Site 1153, A4:16
Site 1154, A5:16
Site 1155, A6:34
Site 1156, A7:31
Site 1157, A8:49
Site 1158, A9:20
Site 1159, A10:20–23
Site 1160, A11:34
Site 1162, A13:40
Site 1163, A14:27
Site 1164, A15:41
seismic reflection, profiles, A3:9; A5:5; A6:8; A8:9–10; A10:4–5; A11:11
seismic surveys, track chart, A3:22; A5:15; A6:33; A7:32; A8:48; A10:19; A11:33; A13:39; A14:26; A15:40
selvage, alteration, A12:8–9
selvage, silica, photograph, A1:40; A8:39
sericite, photomicrograph, A12:19
sheaf quench texture
lithologic units, A3:5–6; A7:5; A10:3
petrography, A8:3–7
photograph, A12:20
photomicrograph, A3:13; A4:10; A8:16; A14:13
pillow basalt, A4:3
shear relay zones, alteration, A13:9
shear zones
alteration, A13:8–9
photograph, A13:32, 38
ultracataclasite, A13:12
Shewanella, microbial populations, B6:8
shrinkage cracks, scanning electron backscattered electron images, B7:21
sieve texture
lithologic units, A7:5; A14:3
petrography, A8:3–4; A12:3–4; A15:5
photomicrograph, A6:17–18; A7:15; A15:19
silica
alteration, A5:4; A10:3–4; B1:7–8; B5:10–11
melting regime, B1:14–15
photograph, A5:14; A10:12–13; A12:39
photomicrograph, A1:39; A6:31; A12:33
vs. distance, B5:23
vs. magnesium oxide, B1:35; B2:20
silica, cryptocrystalline
alteration, A4:4; A8:7–8; A9:5–7; A11:7–10; A12:8–9; A14:4–5; A15:8–9
lithologic units, A13:7
photograph, A1:34, 37
photomicrograph, A12:23–24
siliceous microfossils, clay, A7:10
silt
photograph, A15:30
photomicrograph, A15:32
silt, clayey, petrography, A12:6
Site 1152, A3:1–31
alteration, A3:7–8; B5:5
coring summary, A3:27
geochemistry, A3:9–11
igneous petrology, A3:4–7
lithologic units, A3:4–7, 28
microbiology, A3:8
operations, A3:2–4
principal results, A3:1–2
site description, A3:1–31
site geophysics, A3:8–9
Site 1153, A4:1–22
alteration, A4:3–4; B5:5
alteration isocon plots, B1:27
coring summary, A4:20
geochemistry, A4:6–7
hafnium isotopes, B1:13
igneous petrology, A4:3
isocon plots, B5:22
mantle domains, B1:11
microbiology, A4:4–5
operations, A4:2
principal results, A4:1–2
sediments, A4:5–6
site description, A4:1–22
site geophysics, A4:5
Site 1154, A5:1–22
alteration, A5:3–4; B5:5
coring summary, A5:20
geochemistry, A5:6–7
igneous petrology, A5:2–3
microbiology, A5:4–5
operations, A5:2
principal results, A5:1–2
sediments, A5:6
site description, A5:1–22
site geophysics, A5:5
Site 1155, A6:1–42
alteration, A6:5–7; B5:5
coring summary, A6:39
geochemistry, A6:9–12
igneous petrology, A6:3–5
lithologic units, A6:3–5
microbiology, A6:7
operations, A6:2–3
principal results, A6:1–2
sediments, A6:8–9
site description, A6:1–42
site geophysics, A6:8
strontium isotopes vs. neodymium isotopes, B1:29
structural geology, A6:7–8
Site 1156, A7:1–39
alteration, A7:5–8; B5:6
coring summary, A7:36
geochemistry, A7:10–12
igneous petrology, A7:3–5
lithologic units, A7:3–5
microbiology, A7:8
operations, A7:2–3
principal results, A7:1–2
sediments, A7:9–10
site description, A7:1–39
site geophysics, A7:9
structural geology, A7:8–9
Site 1157, A8:1–56
alteration, A8:7–8; B5:6
coring summary, A8:54
geochemistry, A8:10–12
igneous petrology, A8:2–7
lithologic units, A8:3–7
mantle domains, B1:11
microbiology, A8:8–9
operations, A8:2
principal results, A8:1–2
sediments, A8:9–10
site description, A8:1–56
structural geology, A8:9
Site 1158, A9:1–26
alteration, A9:5–7; B5:6
coring summary, A9:24
geochemistry, A9:8–10
hafnium isotopes, B1:13
igneous petrology, A9:3–5
lithologic units, A9:5
mantle domains, B1:11
microbiology, A9:7
operations, A9:2–3
principal results, A9:1–2
sediments, A9:8
site description, A9:1–26
site geophysics, A9:7
Site 1159, A10:1–29
alteration, A10:3–4; B5:6
coring summary, A10:27
geochemistry, A10:5–6
igneous petrology, A10:2–3
microbiology, A10:4
operations, A10:2
principal results, A10:1
sediments, A10:5
site description, A10:1–29
site geophysics, A10:4–5
Site 1160, A11:1–42
alteration, A11:7–10; B5:6
coring summary, A11:38
geochemistry, A11:12–13
igneous petrology, A11:3–7
lithologic units, A11:3–7
lithologic units summary, A11:39
microbiology, A11:10
operations, A11:2–3
principal results, A11:1–2
sediments, A11:11–12
site description, A11:1–42
site geophysics, A11:11
strontium isotopes vs. neodymium isotopes, B1:29
structural geology, A11:10–11
Site 1161, A12:1–47
alteration, A12:8–9; B5:6–7
coring summary, A12:44
geochemistry, A12:10–11
igneous petrology, A12:3–8
lithologic units, A12:3–9
microbiology, A12:9–10
operations, A12:2
principal results, A12:1–2
sediments, A12:10
site description, A12:1–47
site geophysics, A12:10
Site 1162, A13:1–46
alteration, A13:7–11; B5:7
coring summary, A13:44
geochemistry, A13:14
igneous petrology, A13:3–7
lithologic units, A13:3–7
microbiology, A13:11
operations, A13:2–3
sediments, A13:13
site description, A13:1–46
site geophysics, A13:12
structural geology, A13:12
Site 1163, A14:1–33
alteration, A14:4–5; B5:7
alteration isocon plots, B1:27
coring summary, A14:31
geochemistry, A14:7–8
igneous petrology, A14:2–4
isocon plots, B5:22
lithologic units, A14:2–4
microbiology, A14:5–6
operations, A14:2
principal results, A14:1–2
sediments, A14:6–7
site description, A14:1–33
site geophysics, A14:6
structural geology, A14:6
Site 1164, A15:1–48
alteration, A15:7–9; B5:7
coring summary, A15:45
geochemistry, A15:11–12
igneous petrology, A15:2–7
lithologic units, A15:2–7
microbiology, A15:9–10
operations, A15:2
principal results, A15:1–2
sediments, A15:10
site description, A15:1–48
site geophysics, A15:10
site geophysics
Site 1152, A3:8–9
Site 1153, A4:5
Site 1154, A5:5
Site 1155, A6:8
Site 1156, A7:9
Site 1158, A9:7
Site 1159, A10:4–5
Site 1160, A11:11
Site 1161, A12:10
Site 1162, A13:12
Site 1163, A14:6
Site 1164, A15:10
slickensides, lithologic units, A13:7
smectite
alteration, A3:7–8; A5:4; A6:5–6; A7:5–8; A9:5–7; A11:10; B1:7–8
lithologic units, A3:5–6
photograph, A1:40; A8:39
photomicrograph, A1:32, 37, 39; A3:15; A5:12; A6:16, 23; A7:18, 25–26; A8:35; A9:18; A11:21, 25, 32; A13:35; B5:16, 17
pillow basalt, A4:3
snowball texture, photomicrograph, A9:15
sodium
alteration, B5:9
mantle domains, A1:13–14
pillow basalt, A4:7
sodium8, vs. Fe8, B1:38
sodium oxide
basalt, A6:10–11; A10:5–6; A11:12–13; A13:14; A15:11
melting regime, B1:14–15
olivine, B2:5
pillow basalt, A5:7
vs. magnesium oxide, A3:24; A4:17; A5:17; A6:36; A7:33; A8:51; A9:21; A10:24; A11:35; A12:41; A13:41; A14:28; A15:42; B2:20
sodium oxide, fractionation-corrected, vs. fractionation-corrected iron oxide, B1:37
sodium oxide/titanium oxide ratio
basalt, A3:11; A12:11; A13:14
isotopic boundary, B1:5
mantle domains, A3:11; A4:7; A5:7; A6:11; A7:12; A8:12; A10:6; A11:13; A15:12
mid-ocean ridge basalt, A1:4–5, 12–13
vs. magnesium oxide, A1:4–5, 43–44; A3:26; A4:19; A5:19; A6:38; A7:35; A8:53; A9:23; A10:26; A11:37; A12:43; A13:43; A14:30; A15:44
Southeast Indian Ridge
Australian Antarctic Discordance, B1:1–40
maps, A1:19; B1:25; B2:16
spherulites
alteration, A1:9–10; A7:7–8; A13:8
lithologic units, A3:5–6; A10:3; A13:3–7; A14:3–4
petrology, A1:7
photograph, A1:34; A8:17; A10:8, 17; A12:20, 29; A14:9; A15:18
photomicrograph, A4:9; A5:12; A6:22; A12:35; A13:16, 31
pillow basalt, A4:3
spherulitic texture
alteration, A9:5–7
lithologic units, A9:3–5; A12:7–8
photograph, A12:34, 37
photomicrograph, A12:30; A13:31
spherulitic zone, alteration, A10:3
spinel
mid-ocean ridge basalt, B2:4
See also chrome spinel
spinel microphenocrysts
petrography, A12:4
photomicrograph, A12:16
strontium
alteration, B1:8
basalt, A3:10; A6:10–11; A7:11; A8:11; A11:13; A12:11
pillow basalt, A5:7
vs. magnesium oxide, A3:25; A4:18; A5:18; A6:37; A7:34; A8:52; A9:22; A10:25; A11:36; A12:42; A13:42; A14:29; A15:43
Zone A, A8:12
strontium isotopes
along-axis profiles, A1:20
alteration, B1:8
mantle domains, B1:12
mantle heterogeneity, B3:1–24
mid-ocean ridge basalt, A1:3–5
vs. distance, B3:17, 21
vs. neodymium, B3:19, 22
vs. neodymium isotopes, B1:29
strontium-87/strontium-86 ratio, along-axis profiles, A1:20
structural geology
Site 1155, A6:7–8
Site 1156, A7:8–9
Site 1157, A8:9
Site 1160, A11:10–11
Site 1162, A13:12
Site 1163, A14:6
subduction, mantle, B3:10
subophitic texture
lithologic units, A3:5–6; A9:5; A11:4–7; A15:3–7
photomicrograph, A1:33; A9:17; A11:14; A12:18; A15:16
sulfur, submarine basaltic volcanic glass, B4:3

T

talc
alteration, A1:11; A13:8
high-temperature alteration, B5:8
photomicrograph, A13:20, 25, 30
texture. See box texture; dendritic texture; honeycomb texture; intergranular texture; intersertal texture; lamellar texture; microcrystalline texture; plumose quench texture; quench texture; sheaf quench texture; sieve texture; snowball texture; spherulitic texture; subophitic texture; vermiform texture; vesicular texture
Thalassolituus oleivorans, microbial populations, B6:9
thermomagnetic curves, basalt, B7:7–8, 13
thermoremanent magnetization, mid-ocean ridge basalt, B7:9
titanium
mantle domains, A1:13–14
pillow basalt, A4:7
titanium oxide
alteration, B5:10
basalt, A3:10; A8:11–12; A9:8–9; A10:6; A11:12–13; A14:8; A15:11
melting regime, B1:14–15
vs. magnesium oxide, A3:24; A4:17; A5:17; A6:36; A7:33; A8:51; A9:21; A10:24; A11:35; A12:41; A13:41; A14:28; A15:42
See also iron–titanium oxide; sodium oxide/titanium oxide ratio
titanomaghemite, basalt, B7:7–9
titanomagnetite
basalt, B7:6–7
magnetic properties, B1:9–10
scanning electron backscattered electron images, B7:20
See also iron–titanium oxide
titanomagnetite pseudomorphs, scanning electron backscattered electron images, B7:20–21
trace elements
alteration, B1:7–8; B5:8–11
alteration isocon plots, B1:28
basalt, A3:9–11, 31; A4:6–7, 22; A5:6–7, 22; A6:9–12, 41–42; A7:10–12, 38–39; A8:11–12, 56; A9:8–10, 26; A10:5–6, 29; A11:12–13, 41–42; A12:10–11, 47; A13:7–8, 14, 46; A14:7–8, 33; A15:11–12, 48; B1:36
correlation coefficients of alteration, B5:27–29
melting regime, B1:14–15
vs. magnesium oxide, A3:25; A4:18; A5:18; A6:37; A7:34; A8:52; A9:22; A10:25; A11:36; A12:42; A13:42; A14:29; A15:43
transitional mid-ocean ridge basalt mantle isotopic signatures, Australian Antarctic Discordance, B1:3–4
Transitional Pacific-type glass, domain distribution, A1:14
Transitional Pacific-type mantle, domain distribution, A1:14–16
Type 1 basalt, petrography, A12:7
Type 2 basalt, petrography, A12:7
Type 3 basalt, petrography, A12:7
Type 4 basalt, petrography, A12:7

U

ultracataclasite, shear zones, A13:12
ultracataclasite, basaltic, photograph, A13:38

V

veins
alteration, A1:11; A7:5–8; A10:3–4; A13:9–11; A14:4–5; A15:9; B1:7–8; B5:7, 11
basalt, A6:7–8; A7:9; A11:10
density, A12:9
petrography, A8:6–7
photograph, A14:24
photomicrograph, A10:10–11
structure, A13:12; A14:5–6
See also fracture + vein density
veins, calcite
alteration, A1:11; A6:6–7; A8:8
photograph, A1:40; A4:14–15; A6:24–26; A7:23; A8:39; A11:22, 24, 29–30; A14:20–21
photomicrograph, A1:39; A6:21, 28, 31–32; A11:29; A14:22; B5:19
veins, chlorite, alteration, A11:9–10
veins, dolomite
alteration, A1:11
photograph, A13:34
photomicrograph, A13:37
veins, lithic, alteration, A8:8
veins, micritic calcite, photomicrograph, A8:34–36, 40–42, 44–45
veins, palagonite
alteration, A11:9–10
photograph, A11:27
veins, quartz, photomicrograph, A13:17, 31
veins, silica
photograph, A1:38; A11:23
photomicrograph, A10:10, 16; B5:19
veins, sparry calcite
alteration, A11:8–10
photograph, A6:15
photomicrograph, A8:35–36, 40, 43
veins, zeolite, photomicrograph, B1:27
vermiform texture, photomicrograph, A8:23
vesicles
alteration, A6:5–6; A9:6–7; A15:8–9; B1:7–8; B5:7
lithologic units, A3:4–6; A6:3–5; A7:5; A9:5; A11:4; A14:4; A15:4–7
petrography, A8:4; A15:5–6
photomicrograph, A6:16, 23; A10:14–15; A11:21, 32; A15:17; B5:17
pillow basalt, A4:3
vesicular texture, photomicrograph, A9:12
volatiles, submarine basaltic volcanic glass, B4:1–8
volcanic glass
alteration, A1:10–11; A6:25; A7:5–8; B1:8–9
biodegradation, A6:30
geochemistry, A4:22; A5:22; A6:41–42; A7:38–39; A8:56; A9:26; A10:29; A11:41–42; A12:47; A13:46; A14:33; A15:48
lead-206/lead-204 ratio vs. lead-208/lead-204 ratio, B1:31
lithologic units, A11:4
occurrence, A3:29
petrography, A8:5–6; A15:6–7
photograph, A1:38; A8:32; A10:7, 16, 18; A11:27; A12:20; A14:9; A15:28
photomicrograph, A5:12; A12:28; A15:31, 38–39; B5:16, 19
samarium/neodymium ratio, B3:5
See also glass rinds; glass shards
volcanic glass, basaltic
photograph, A12:39
photomicrograph, A6:30
volcanic glass, devitrified
lithologic units, A3:5–6
photomicrograph, A7:25
volcanic glass, palagonitized
lithologic units, A7:3–5
photograph, A1:26; A6:29; A7:13
volcanic glass, quenched, photomicrograph, A15:17
volcanic glass, spherulitic, photomicrograph, A6:22
volcanic glass, submarine basaltic, volatiles, B4:1–8
vugs
petrography, A8:7
photograph, A7:20; A10:12–13

W

wall-rock reactions, petrography, A8:7
water content
enrichment cultures, B6:6
submarine basaltic volcanic glass, B4:3
vs. carbon dioxide, B4:6

X

xenocrysts
basalt, A1:9
lithologic units, A13:3–4
xenocrysts, plagioclase, photomicrograph, A13:17–18

Y

yttrium
basalt, A3:9–10; A6:10–11; A8:11; A9:8–9; A11:12; A12:11; A14:8
pillow basalt, A4:7; A5:7
vs. magnesium oxide, A3:25; A4:18; A5:18; A6:37; A7:34; A8:52; A9:22; A10:25; A11:36; A12:42; A13:42; A14:29; A15:43

Z

zirconium
basalt, A3:9–10; A6:10; A8:11; A9:8–9; A11:12; A14:8; A15:11
isotopic boundary, B1:4–5
mantle domains, A1:13
pillow basalt, A4:7
vs. barium, B1:36
vs. magnesium oxide, A3:25; A4:18; A5:18; A6:37; A7:34; A8:52; A9:22; A10:25; A11:36; A12:42; A13:42; A14:29; A15:43
zirconium/barium ratio
basalt, A14:8
isotopic boundary, B1:5
mantle domains, A3:10–11; A6:11; A7:12; A9:9–10; A13:14; A14:8; A15:12
mid-ocean ridge basalt, A1:4–5, 12
vs. barium, A1:4–5, 43–44; A3:26; A4:19; A5:19; A6:38; A7:35; A8:53; A9:23; A10:26; A11:37; A12:43; A13:43; A14:30; A15:44; B1:32
vs. lead-206/lead-204 ratio, A1:41
Zone A
alteration, B1:8–9
basalt, A10:6; A11:13; A12:10–11; A13:14
depth anomalies, B3:7
geochemical signals, B1:18
geology, A1:1–3, 12
isotopes along-axis profiles, A1:20
lead-206/lead-204 ratio vs. longitude, A1:41
magnetic susceptibility, B7:5–6
mantle, B1:16–19
mantle domains, A9:10; A11:13
mantle heterogeneity, B3:2–3
mid-ocean ridge basalt, B2:2–3
olivine, B2:23
pillow basalt, A4:7; A5:7
sediments, A6:8–9
Southeast Indian Ridge, B1:1–3
trace elements, A8:12
Zone A-East, domain distribution, A1:14
Zone A-West
domain distribution, A1:14
isotopic variability, B3:10
Zone B
alteration, B1:8–9
depth anomalies, B3:7
geochemical signals, B1:18
isotopes along-axis profiles, A1:20
magnetic susceptibility, B7:5–6
mantle, B1:16–19
mantle heterogeneity, B3:2–3
mid-ocean ridge basalt, B2:2–3
sediments, A6:8–9
Southeast Indian Ridge, B1:1–3
Zone B4, depth anomalies, B3:7
Zone B5, depth anomalies, B3:7
Zone C
isotopes along-axis profiles, A1:20
sediments, A6:8–9
Zone D, sediments, A6:9
zoning, sediments, A6:35