acceleration, vs. time, A4:118
active heave compensator, instruments, A5:17–19
age vs. depth, A1:44–45; A4:89
basement, A4:33–35
temperature, A4:35
aluminum oxide/(aluminum oxide + iron oxide) ratio, vs. lanthanum/cerium ratio, B1:4; B4:5–7, 19
pore water, A4:21
vs. depth, A4:76
anhysteretic remanent magnetization, B9:3–4, 7, 15
magnetic susceptibility, B9:4, 16–19
vs. depth, B9:8, 12
anisotropy, magnetic susceptibility
confidence angle, B9:10
ellipsoids, B9:9, 11
Anomaly M8
paleolatitude, B7:1–20
summary, A1:1–49
Anomaly M21, magnetic inclination, Site 169, B8:6
anoxic environment, lithologic units, A4:15–16
basalt, A4:29
photomicrograph, A4:102
argon isotopes
radiometric dating, B1:6
volcanic ash, B1:5


backarc basins, tectonics, A1:5
bacteria, microbiology, A4:20
barium, vs. depth, B3:7
Barremian, biostratigraphy, A4:20
chemical composition, A4:145
geochemistry, A4:32–33
isotopes, B3:1–11
lithologic units, A4:27–29
normative composition, A4:146
paleomagnetism, A4:25; B7:1–20; B8:1–27
petrology, A1:14–15
photograph, A1:42
photomicrograph, A4:93, 101–105, 107–108
subdivision, A4:142
Zijderveld plots, A4:88
basalt, aphyric, petrology, A4:26–35
basalt flows
petrology, A4:26–35
photograph, A4:94, 99
basalt flows, altered aphyric, photograph, A4:92
alteration, A4:33–35
igneous rocks, B1:3
lithostratigraphy, A4:91
petrology, A1:14–15
photograph, A4:92
bathymetry, maps, A5:22, 25
bedding, photograph, A4:64
Neogene, B1:3–4; B2:1–34
Site 1179, A1:15–16; A4:16–20
vs. depth, A4:74
lithologic units, A4:11–15
photograph, A4:66–67, 71–72
borehole instruments, A4:43–46, 120–132
borehole seismic observatories, A1:3–5; A3:1–58
boreholes, instruments, A4:43–46
petrology, A1:15; A4:26–35
photograph, A4:96, 98
brecciation, lithologic units, A4:14
Brunhes Chron, magnetostratigraphy, A1:16–17; A4:25
burrows, photograph, A4:67


basalt, A4:33–35
photograph, A4:99–100
photomicrograph, A4:107
calcium. See potassium/calcium ratio
caliper logs
lithologic units, A1:17
vs. depth, A4:115, 117
carbon, organic, pore water, A4:22
carbon, sediments, A4:136–137
carbon dioxide, sediments, A4:22–23
carbonate compensation depth
foraminifers, B1:3
sedimentation, A1:5–6; A4:3
carbonate content, pore water, A4:22
basalt, A4:33–35
photomicrograph, A4:107–108
oxidation, B4:5–7
sediments, B1:4; B4:1–24
spectra, B4:20
See also lanthanum/cerium ratio
chemical composition, basalt, A4:145
lithologic units, A4:14
petrology, A1:14–15
photograph, A1:41; A4:73, 92
Chondrites, lithologic units, A4:11–13
chrome spinel
basalt, A4:28–29
photomicrograph, A4:101
chromium, basalt, A4:32
Chron C1n, magnetostratigraphy, A1:16; A4:25
Chron C1r, magnetostratigraphy, A1:16
Chron C1r.1n, magnetostratigraphy, A1:16
Chron C1r.2r, magnetostratigraphy, A4:25
Chron C1r.2r1n, magnetostratigraphy, A1:16; A4:25
Chron C2Ar, magnetostratigraphy, A1:16
Chron C2n, magnetostratigraphy, A1:16
Chron C2r.1n, magnetostratigraphy, A1:16
Chron C3An, magnetostratigraphy, A1:16
Chron C3n, magnetostratigraphy, A1:16
Chron C3r, magnetostratigraphy, A1:16
Chron C4n.1n, lithologic units, A1:14; A4:12–13
Chron C5Dr, lithologic units, A4:13, 25
Chron C5n.2n, lithologic units, A4:12
lithologic units, A1:14; A4:11–13
Miocene–Pleistocene interval, A1:5–6
sources, A4:16
clay, brown pelagic, photograph, A1:40
clay, diatom-rich, photomicrograph, A4:62
clay, ferruginous zeolitic, photomicrograph, A4:62, 68
clay, pelagic
lithologic units, A4:13
permeability, B5:1–16
photograph, A4:72
clay, zeolitic, lithologic units, A4:12–13
basalt, A4:27
photomicrograph, A4:102–104
closing force test program, instruments, A5:7
Cobb Mountain Subchron, magnetostratigraphy, A1:16–17; A4:25
basalt, B8:8, 20
vs. depth B7:15; B8:14, 16, 18
compressional wave velocity
basalt, A4:153
lithologic units, A1:17
sediments, A4:36–37
split cores, A4:147–148
vs. depth, A4:109
concretions, lithologic units, A4:11
contamination, crust, B3:3
lithology vs. seismic reflection, A4:39–40
magnetic susceptibility, A4:84
Cretaceous Long Normal Superchron, colatitude, B8:9
Cretaceous, Lower
isotopes, B3:4
lithologic units, A4:15
Cretaceous, middle
magnetic inclination, B8:5–9
paleolatitude, B7:1–20
cristobalite, lithologic units, A4:14
cross laminations, lithologic units, A4:11
crust, basaltic, lithologic units, A4:15
crust, oceanic
basalt, B3:3–4
igneous rocks, B1:5–7
crystallites, plumose, photomicrograph, A4:103


demagnetization, alternating-field
overprinting, B7:5
sediments, A4:24
vector plots, B7:13
demagnetization, thermal
basalt, A4:25
vector plots, B7:14
basalt, A4:153
lithologic units, A1:17
vs. depth, A1:46–47; A4:109
density, bulk
sediments, A4:37–38
vs. depth, A4:111
biostratigraphy, B1:3, 16; B2:1–34
datum ages, B2:20
lithologic units, A4:10–13
photomicrograph, A4:62
stratigraphic occurrence, B2:14–18
biostratigraphy, B1:8
sedimentation rates, A4:26
vs. depth, A4:75
discontinuities, lithologic units, A4:15–16
DM24, instruments, A3:8
downhole measurements, A1:17–18; A4:40–43


electrical logs, measurement, A4:42–43


feldspar, lithologic units, A4:13
fish teeth, biostratigraphy, A4:18
basalt, A4:33
photomicrograph, A4:108
foraminifers, benthic, sedimentation rates, A4:26
foraminifers, biostratigraphy, A1:16; A4:17–18


gamma rays, multi-sensor spectral
calibration, B6:3
comparison with conventional logs, B6:1–21
tool specifications, B6:2–3
gamma rays, natural
measurement, A4:42
sediments, A4:39
gamma-ray logs
lithologic units, A1:17–18; B6:1–21
vs. depth, A4:110, 115–116; B6:13–14
Gauss Chron, magnetostratigraphy, A1:16–17
basalt, A4:32–33
pore water, A4:20–22
sediments, B1:4
Site 1179, A4:20–23
geochronology, volcanic ash, B1:5, 17
geology, tectonics, A4:2–3
Gilbert Chron, magnetostratigraphy, A1:16–17
glass shards, photograph, A4:100
goethite, basalt, A4:34
grain size, permeability, B5:5–6, 12
Granularia, lithologic units, A4:11–14
groundmass, basalt, A4:27
groundmass texture, photomicrograph, A4:103, 105
Guralp compressed format, instruments, A3:9–11, 51


haloes, basalt, A4:29
hammer/bit testing, instruments, A5:6–7
hard-rock reentry system, instruments, A1:7–8; A5:5–47
heat flow, sediments, A4:38
heave, acceleration, A4:119
Helminthopsis, lithologic units, A4:11
hematite, basalt, A4:34
hematite, collomorphic, photomicrograph, A4:108
Holocene. See Miocene–Holocene interval
lithologic units, A4:27–29
photograph, A4:96, 98
photomicrograph, A4:107
hyalopilitic texture
basalt, A4:30–32
photomicrograph, A4:103
hydration, volcanic glass, A4:33
hydril pulsation dampner, instruments, A5:17
pore water, A4:22
sediments, A4:136–137


petrology, A1:15
photomicrograph, A4:101
igneous petrology, A1:14–15; A4:26–35
igneous rocks
isotope geochemistry, B1:5–7
lithologic units, A1:43
illite, lithologic units, A4:11–12
index properties, discrete samples, A4:149–151
boreholes, A4:43–46
deployment, A1:10; A4:158
hard-rock reentry system, A1:7–8
ocean borehole seismometers, A3:6–8
power supply, A3:15–19
seismic observatories, A1:3–5, 7–8; A3:1–58
interpillow material, photograph, A4:95–96, 100
Inutile Seamount, bathymetry maps, A5:22
iron, pore water, A4:21–22
iron oxide
lithologic units, A4:13
See also aluminum oxide/(aluminum oxide + iron oxide) ratio
iron oxide/magnesium oxide ratio, vs. titanium oxide, A4:32, 106
isotopes, basalt, B3:1–11


Japan, tectonics, A1:5
Jaramillo Subchron, magnetostratigraphy, A1:16–17


Kuroshio Current, circulation, B1:2


laminations, lithologic units, A4:11, 15
laminations, planar, photograph, A4:65
lanthanum/cerium ratio
sediments, B4:5
vs. aluminum oxide/(aluminum oxide + iron oxide) ratio, B1:4; B4:5–7, 19
vs. depth, B4:21
lava flows, petrology, A4:31–33
liesegang structures, photograph, A4:94
limestone, photograph, A4:95
lithologic units
basalt, A4:27–29
igneous rocks, A1:43
Site 1179, A1:14; A4:10–16
Unit I, A4:10–12
Unit II, A4:12–13
Unit III, A4:13–14
Unit IV, A4:14
Unit V, A4:15
lithology, vs. seismic reflection, A4:39–40
basement, A4:91
correlation, A1:26; A1:34–36; A4:54, 61
summary, B5:11


magnetic inclination
basalt, B7:6–8; B8:5–9
vs. depth, A4:81, 85–87
magnetic intensity
basalt, A4:25
sediments, A4:24–25
vs. depth, A4:80
magnetic lineaments, tectonics, A1:25, 32; A4:53
magnetic polarity
basalt, Site 800, B8:8
reversal boundary depths, A4:141
reversals, A4:85–87
magnetic susceptibility
anisotropy, B9:4
correlation, A4:84
sediments, A4:24–25, 39
tie point depths, A4:140
vs. depth, A4:83–84, 110
basalt, A4:30–32
photomicrograph, A4:102–103
magnetostratigraphy, chrons, A1:16–17; A4:25
major elements, sediments, B4:23
oxidation, B4:3–5
pore water, A4:21–22
sediments, B1:4; B4:1–24
spectra, B4:13
vs. depth, A4:77; B4:12, 14
manganese oxide/titanium oxide ratio
oxidation, B4:4–5
vs. depth, B4:16
vs. distance from land, B4:15
mantle plumes, petrology, A4:31
Mariana Arc, tectonics, A1:5
Mariana backarc, operations, A5:15–16
Mariana Trough, tectonics, A1:5
Martillo Seamount, bathymetry maps, A5:25
Matuyama Chron, magnetostratigraphy, A1:16–17; A4:25
medium induction spherically focused resistivity logs, vs. depth, A4:117
MEG-191, instruments, A3:9–13, 53
mesostasis, basalt, A4:27
Messinian, chronology, B1:8
core samples, A4:139
incubation, A4:22–23
perfluorocarbon tracers, A4:23
Site 1179, A1:18; A4:22–23
microcrystalline texture
basalt, A4:30–32
photomicrograph, A4:102, 104
biostratigraphy, A1:16
volcanism, B1:8
Miocene, middle/upper boundary, magnetostratigraphy, A1:16
Miocene, upper
biostratigraphy, A4:16–20; B2:1–34
lithologic units, A4:10–13
Miocene–Holocene interval, lithologic units, A4:10–12
Miocene–Pleistocene interval, sedimentation, A1:5–6
Miocene/Pliocene boundary
diatoms, B2:6
magnetostratigraphy, A1:16


nannofossils, biostratigraphy, A1:16
nannofossils, calcareous
biostratigraphy, A4:17
sedimentation rates, A4:26
neodymium, vs. titanium oxide, B4:18
neodymium isotopes
basalt, B3:1–11
vs. depth, B3:7
vs. strontium isotopes, B1:5–6, 17; B3:9
biostratigraphy, A4:16–20
sediments, B1:2–19
NEREID-191 system, deployment, A3:2–3, 23, 50–51; A4:159
nickel, basalt, A4:32
niobium. See zirconium/niobium ratio
pore water, A4:22
sediments, A4:136–137
nodules, lithologic units, A4:11
normative composition, basalt, A4:146


ocean borehole seismometers, instruments, A3:6–8, 31–48
Olduvai Subchron, magnetostratigraphy, A1:16–17
basalt, A4:27–35
petrology, A1:15
photomicrograph, A4:101, 108
onshore quarry testing program, instruments, A5:9–10
Ontong Java, magma sources, B3:4
lithologic units, A1:14
Miocene–Pleistocene interval, A1:5–6
ooze, diatom
photograph, A4:63–67, 69
photomicrograph, A4:62
ooze, diatom-bearing radiolarian
lithologic units, A4:10–13
photograph, A1:39
ooze, diatomaceous
permeability, B5:1–16
photograph, A1:38
ooze, radiolarian
photograph, A4:70
photomicrograph, A4:62
ooze, siliceous, lithologic units, A4:15
lithologic units, A4:11–12
photograph, A4:67
cerium, B4:5–7
sediments, B1:4; B4:1–24
Oyashio Current, circulation, B1:2


Pacific Ocean NW
stratigraphy, A4:3
summary, A1:1–49
Pacific Ocean W, paleomagnetism, B8:1–27
Pacific Plate
paleolatitude, B7:1–20
tectonics, A1:5
Pacific–Izanagi Ridge, basalt, B3:4
basalt, A4:27
basalt distribution, A4:144
petrology, A1:15
photomicrograph, A4:102
paleoceanography, Neogene, B1:3–4
paleoclimatology, sedimentation rates, B1:5
comparison with other Pacific basalt data, B7:16
Pacific Plate, B7:1–20
See also colatitude
paleomagnetic pole, paleolatitude, B7:1–20
basalt, A4:25; B7:1–20; B8:1–27
data, B1:6–7
Pacific Ocean W, B8:1–27
sediments, A4:24–25; B9:1–19
Site 1179, A1:16–17; A4:23–25
palynomorphs, biostratigraphy, A1:15; A4:18–19
perfluorocarbon tracer, log–log curve, A4:79
diatomaceous sediments and pelagic clay, B5:1–16
vs. porosity, B5:15
vs. pressure, B5:14
basalt, A4:27–35
basalt distribution, A4:143
photomicrograph, A4:101
Philippine Sea plate, tectonics, A1:5
phillipsite, lithologic units, A4:13
Phycosiphon, lithologic units, A4:11, 13–14
physical properties
average by lithologic unit, A4:154
sediments, B1:2
Site 1179, A1:17; A4:35–40
pillow rims, chilled, basalt, A4:29
pillow structure, photograph, A4:95
petrology, A4:26–35
photograph, A4:100
basalt, A4:27–35
photomicrograph, A4:101, 103–105, 108
Planolites, lithologic units, A4:11–14
biostratigraphy, B1:8; B2:1–34
See also Miocene–Holocene interval; Miocene–Pleistocene interval
biostratigraphy, A4:19–20; B2:1–34
See also Miocene–Holocene interval; Miocene–Pleistocene interval; Miocene/Pliocene boundary
porcellanite, lithologic units, A4:14
pore water, geochemistry, A4:20–22
lithologic units, A1:17
sediments, A4:37–38
vs. depth, A1:46–47; A4:109
vs. permeability, B5:15
potassium, radioactivity, A4:42
potassium/calcium ratio, alteration, B1:6
potassium logs
comparison of multisensor tool with conventional, B6:5–6
vs. depth, A4:115; B6:15
potassium oxide, vs. depth, B3:7
power supply, instruments, A3:15–19
permeability, B5:13
vs. permeability in Navajo Sandstone, B5:14
pyrite, basalt, A4:34


quartz, lithologic units, A4:11–12
Quaternary, biostratigraphy, A4:16–20
quenched margins, basalt, A4:30–32


radioactivity, natural, operations, A4:42
radioactivity logs, vs. depth, A4:117
abundance, A4:138
biostratigraphy, A4:19–20; B1:8
lithologic units, A4:10–12, 15–16
photomicrograph, A4:97
sedimentation rates, A4:26, 90
radiometric dating, argon isotopes, B1:6
rare earths
basalt, A4:32
post-Archean shales from Australia comparison, B4:17
sediments, B4:5–7, 24
reflection, traveltime vs. lithology, A4:156–157
remanent magnetization, anhysteretic
overprinting, B7:5
sediments, B9:3–4, 7
remanent magnetization, characteristic
colatitude, Site 803, B8:9
sediments, A4:24
remanent magnetization, isothermal
basalt, A4:25
overprinting, B7:5
sediments, B9:2–3, 13–14
remanent magnetization, natural, basalt, B8:5–9
resilification, lithologic units, A4:14
resistivity logs
lithologic units, A1:17
measurement, A4:42–43
vs. depth, A4:117
See also medium induction spherically focused resistivity logs; shallow induction spherically focused resistivity logs
rosettelike bundles, photomicrograph, A4:104
Rota, tectonics, A1:5
Rota-1, operations, A5:13–15
rubidium, vs. depth, B3:7
rubidium/strontium ratio
vs. depth, B3:7
vs. strontium isotopes, B3:8


SAM-191, instruments, A3:13–15, 49
photograph, A4:99
See also smectite/saponite mixture
sea-floor instruments, A4:45–46
secondary minerals
petrology, A1:15
photograph, A4:69
photomicrograph, A4:68, 102, 107–108
sedimentary lithology, A1:14
carbonate compensation depth, A1:5–6
Miocene–Pleistocene interval, A1:5–6
provenance, B4:7, 22
sedimentation rates
age vs. depth, A1:44–45; A4:89
biostratigraphy, A4:26
magnetostratigraphy, A1:16–17
paleoclimatology, B1:5
paleomagnetism, A4:26
radiolarians, A4:90
Site 1179, A4:25–26
sedimentology, A4:9–16
composition, B1:3–5
geochemistry, B1:4; B4:1–24
Neogene, B1:2–19
paleomagnetism, A4:24–25; B9:1–19
seismic observatories
installation, A1:11–12, 27–31; A3:4–6, 23–58
Pacific Ocean NW, A1:3–5, 7–8, 27–31; A3:1–58
See also borehole seismic observatories
seismic profiles
Site 1179, A1:37; A4:56–60, 113–114
Site 1180, A5:23
Site 1181, A5:24
Site 1182, A5:26
vs. lithology, A4:39–40
seismic stratigraphy, A4:8–9
data, B1:7–8
emplacement, A4:44–45
See also borehole seismic observatories; ocean borehole seismometers
shallow induction spherically focused resistivity logs, vs. depth, A4:117
Shatsky Rise
crust, B3:3
diatoms, B2:7
tectonics, A1:5
shear strength, peak, vs. depth, A4:112
shear strength, vane, sediments, A4:39, 155
silica, skeletons, lithologic units, A4:15
siliceous microfossils, biostratigraphy, A1:15
silicoflagellates, lithologic units, A4:11–12
Site 169, paleomagnetism, B8:2, 5–6
Site 170, paleomagnetism, B8:2, 6
Site 171, paleomagnetism, B8:2, 6–7
Site 581, paleomagnetism, B8:2–3, 7, 21–22
Site 597, paleomagnetism, B8:3, 7–8, 23–25
Site 800, paleomagnetism, B8:3, 8, 26–27
Site 803, paleomagnetism, B8:4, 9, 26–27
Site 865, paleomagnetism, B8:4, 9, 26–27
Site 1179, A4:1–159
background and objectives, A4:1–2
biostratigraphy, A1:15–16; A4:16–20; B2:1–34
borehole instruments, A4:43–46
coring summary, A4:133–135
downhole measurements, A1:17–18; A4:40–43; B6:1–21
geochemistry, A4:20–23; B4:1–24
geology and tectonics, A4:2–3
igneous petrology, A1:14–15; A4:26–35
isotope geochemistry, B3:1–11
lithostratigraphy, A1:26, 34–36; B1:12–13
microbiology, A1:18; A4:22–23
operations, A1:7–12, 48–49; A4:3–7
paleomagnetism, A1:16–17; A4:23–25; B7:1–20
permeability, B5:1–16
physical properties, A1:17; A4:35–40
sedimentary lithology, A1:14
sedimentation rates, A4:25–26
sedimentology, A4:9–16
seismic stratigraphy, A4:8–9
site description, A4:1–159
site geophysics, A4:7–9
synthesis, B1:1–19
Site 1180, A5:1–47
background and objectives, A5:1–2
operations, A1:12–13; A5:2–3
site description, A5:1–47
site geophysics, A5:3
Site 1181, A5:1–47
background and objectives, A5:1–2
operations, A1:12–13; A5:2–3
site description, A5:1–47
site geophysics, A5:3
Site 1182, A5:1–47
background and objectives, A5:3–4
Mariana backarc operations, A5:15–16
operations, A5:4
site description, A5:1–47
site geophysics, A5:4–5
site geophysics
Site 1179, A4:7–9
Site 1180, A5:3
Site 1181, A5:3
Site 1182, A5:4–5
smectite, photomicrograph, A4:107–108
smectite/saponite mixture, basalt, A4:33–35
sponges, lithologic units, A4:11–12
spreading centers, tectonics, A1:5
standpipe vibration, instruments, A5:16
stratigraphy, tectonics, A4:3
basalt, A4:32
vs. depth, B3:7
See also rubidium/strontium ratio
strontium isotopes
basalt, B3:1–11
vs. depth, B3:7
vs. neodymium isotopes, B1:5–6, 17; B3:9
vs. rubidium/strontium ratio, B3:8
subduction factory, volcanic ash, B1:5
subophitic texture
petrology, A1:15
photomicrograph, A4:104–105
pore water, A4:22
vs. depth, A4:78; B4:12
pore water, A4:22
sediments, A4:136–137


geology, A4:2–3
volcanism, A1:5
Teichichnus, lithologic units, A4:11–12
temperature, alteration, A4:35
thermal conductivity
sediments, A4:152
vs. depth, A4:110
thermal conductivity, sediments, A4:38
thorium, radioactivity, A4:42
thorium logs
comparison of multisensor tool with conventional, B6:5–6
vs. depth, A4:115; B6:17
tie point depths, magnetic susceptibility, A4:140
titanium oxide
vs. iron oxide/magnesium oxide ratio, A4:32, 106
vs. neodymium, B4:18
See also manganese oxide/titanium oxide ratio
trace elements
basalt, B3:11
vs. depth, B3:7
triple junctions, tectonics, A1:5


uranium, radioactivity, A4:42
uranium logs
comparison of multisensor tool with conventional, B6:5–6
vs. depth, A4:115; B6:16


Valanginian, biostratigraphy, A4:20
veins, photomicrograph, A4:107
vs. depth, A1:46–47
See also compressional wave velocity
velocity, sonic, sediments, A4:36–37
basalt, A4:30–32
photograph, A4:99
photomicrograph, A4:107–108
volcanic ash
chronology, B1:5, 17
lithologic units, A4:11–12, 16
Miocene–Pleistocene interval, A1:5–6
photograph, A4:69
volcanic glass
basalt distribution, A4:144
hydration, A4:33
lithologic units, A4:13, 16
petrology, A1:15
photomicrograph, A4:68
volcanic glass, devitrified, basalt, A4:27
basalt, A4:28–35
photograph, A4:96
Miocene, B1:8
tectonics, A1:5
vugs, lithologic units, A4:14


data, B1:7
drill-string acceleration measurement tool, A4:43
operations, A4:40–46
WP-2 observatory, operation, A3:19–20


yttrium. See zirconium/yttrium ratio


lithologic units, A4:11–12
photomicrograph, A4:107
Zijderveld plots
basalt, A4:25, 88; B8:12–13, 15, 17
magnetic properties, A4:82, 88
basalt, A4:29–30
photomicrograph, A4:102
zirconium/niobium ratio, vs. zirconium/yttrium ratio, B3:10
zirconium/yttrium ratio
basalt, B3:4
vs. zirconium/niobium ratio, B3:10
zonation, diatoms, B2:3–34
Zoophycos, lithologic units, A4:11