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o  search
O'Brien County Iowa  search
BTUnited States
 .Iowa
 ..O'Brien County Iowa
O'Leary Peak  search
RTCoconino County Arizona
SNPeak in Coconino County, N central Arizona. Indexed with county or region as applicable.
O'Sullivan Lake  search
RTOntario
 Quebec
SNLake in N Ontario. Also a lake in E Quebec. Indexed with provinces or regions as applicable. Added to Thesaurus in 1985.
O-16  search
BTisotopes
 .stable isotopes
 ..O-16
BToxygen
 .O-16
RTO-18/O-16
 O-17/O-16
SNThis term has multiple hierarchies.
O-16/O-18  search
USEO-18/O-16
O-17  search
BTisotopes
 .stable isotopes
 ..O-17
BToxygen
 .O-17
RTO-17/O-16
SNThis term has multiple hierarchies.
O-17/O-16  search
BTisotopes
 .stable isotopes
 ..O-17/O-16
BToxygen
 .O-17/O-16
RTisotope ratios
 O-16
 O-17
SNThis term has multiple hierarchies.
O-18  search
BTisotopes
 .stable isotopes
 ..O-18
BToxygen
 .O-18
RTO-18/O-16
SNThis term has multiple hierarchies.
O-18/O-16  search
BTisotopes
 .stable isotopes
 ..O-18/O-16
BToxygen
 .O-18/O-16
UFO-16/O-18
RTisotope ratios
 paleoclimatology
 geologic thermometry
 O-16
 O-18
SNThis term has multiple hierarchies.
O-shima  search
BTAsia
 .Far East
 ..Japan
 ...O-shima
RTAmami-O-shima
 Oshima
 Oshima Peninsula
 Izu-shichito
 Izu-Oshima earthquake 1978
 Izu-Oshima
 Mount Mihara
SNRefers to various islands in Japan. After 1992, see Izu-Oshima for the largest island in the Izu-shichito group which is the location of Mount Mihara volcano, Oshima for the Ryukyu Islands group and Oshima Peninsula for the sub-prefecture on Hokkaido. Bef
Oahu  search
BTUnited States
 .Hawaii
 ..Honolulu County Hawaii
 ...Oahu
NTHonolulu Hawaii
 Kaneohe Bay
 Koolau Range
 Pearl Harbor
 Waianae
 Waimanalo Hawaii
SNThird largest of the Hawaiian islands. Island on which Honolulu is located. Principal part of Honolulu County. This term has multiple hierarchies.
Oak Hill Member  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Paleogene
 ....Paleocene
 .....Oak Hill Member
RTAlabama
 Naheola Formation
SNOf Naheola Formation. W Alabama. Added to Thesaurus in 1989.
Oak Ridge Nati  search
Oak Ridge National Laboratory  search
BTUnited States
 .Tennessee
 ..Oak Ridge National Laboratory
UFORNL
RTAnderson County Tennessee
 government agencies
 nuclear facilities
 Roane County Tennessee
SNNear Oak Ridge in Anderson County, Tennessee. Indexed with Roane County Tennessee and/or Anderson County Tennessee. Added to Thesaurus in 1985.
Oakland California  search
BTUnited States
 .California
 ..Alameda County California
 ...Oakland California
RTSan Francisco Bay
SNE shore, San Francisco Bay, Northern California.
Oakland County Michigan  search
BTUnited States
 .Michigan
 ..Michigan Lower Peninsula
 ...Oakland County Michigan
Oakville Sandstone  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Neogene
 ....Miocene
 .....Oakville Sandstone
RTTexas
SNSW Texas. Added to Thesaurus in 1985.
Oakwood Dome  search
BTUnited States
 .Texas
 ..Oakwood Dome
RTGulf Coastal Plain
 salt domes
 Freestone County Texas
 Leon County Texas
SNSalt dome, Leon and Freestone counties, E Texas. Indexed with counties as applicable. Added to Thesaurus in 1985.
Oamaru New Zealand  search
BTAustralasia
 .New Zealand
 ..Otago New Zealand
 ...Oamaru New Zealand
RTSouth Island
SNTown on Pacific Ocean in SE South Island. Also index South Island.
Oasis region  search
SNNo longer a valid term for GeoRef. Used as large department of French Algeria. As of 1993, see Algeria for departments.
Oaxaca Mexico  search
BTMexico
 .Oaxaca Mexico
RTSierra de Juarez
 Mexican volcanic belt
 Sierra Madre del Sur
SNState and city in S Mexico.
Ob River  search
BTCommonwealth of Independent States
 .Russian Federation
 ..Ob River
BTAsia
 .Ob River
RTSiberia
 Irtysh River
 Ob-Irtysh Interfluve
SNRises in Altai Mountains and flows NE and N through West Siberian Plain into Gulf of Ob on Kara Sea. Also search Ob. This term has multiple hierarchies.
Ob-Irtysh Interfluve  search
BTAsia
 .Ob-Irtysh Interfluve
BTCommonwealth of Independent States
 .Ob-Irtysh Interfluve
RTRussian Federation
 Kazakhstan
 Irtysh River
 Ob River
 Siberian Lowland
SNExtends from source of both rivers in Altai Mountains to their conjunction in the Siberian Lowland. This term has multiple hierarchies. Indexed with former Soviet republics as applicable.
obduction  search
RTplate tectonics
 subduction
Oberalp Pass  search
BTEurope
 .Central Europe
 ..Switzerland
 ...Oberalp Pass
RTSwiss Alps
 Graubunden Switzerland
 Uri Switzerland
SNIn the Alps, on border of Uri and Graubunden cantons, S central Switzerland. Added to Thesaurus in 1981.
Oberhalbstein  search
BTEurope
 .Central Europe
 ..Switzerland
 ...Graubunden Switzerland
 ....Oberhalbstein
SNValley NW of Saint Moritz in E Switzerland.
Oberon Satellite  search
RTicy satellites
 satellites
 Uranus
 Voyager Program
SNOne of the satellites of Uranus. Before 1989, also search Oberon AND Uranus. Added to Thesaurus in 1989.
Oberpfalz  search
USEUpper Palatinate
Obion County Tennessee  search
BTUnited States
 .Tennessee
 ..Obion County Tennessee
RTReelfoot Lake
SNExtreme NW Tennessee.
objectives  search
RTeducational resources
 mineral exploration
oblique or  search
oblique orientation  search
RTfaults
 folds
 fractures
 joints
 orientation
SNIncludes use as orientation of folds relative to spatially associated macroscopic structures such as large folds, fold systems and orogenic zones. Before 1978, also search folds or faults; AND oblique.
oblique-slip faults  search
BTfaults
 .oblique-slip faults
UFdiagonal-slip faults
RTtranstension
 strike-slip faults
SNBefore 1978, search faults AND diagonal-slip. Added to Thesaurus in 1989.
obliquity  search
SNAs of 1981, no longer a valid term for GeoRef. See oblique orientation; obliquity of the ecliptic. Included use as a general term and for planet obliquity.
obliquity of the ecliptic  search
RTclimate
 Earth
 Milankovitch theory
 Moon
 motions
 paleoclimatology
 precession
 tilt
 torque
SNBefore 1981, also search planet name AND tilt. Added to Thesaurus in 1981.
observation wells  search
RTabandoned water wells
 ground water
 monitoring
 oil wells
 petroleum engineering
 water wells
SNUsed especially in ground water and petroleum engineering studies. Before 1993, also search monitoring wells if applicable. Added to Thesaurus in 1993.
observations  search
RTGEOS
 lunar bases
 orbital observations
 quality control
observatories  search
RTgeophysics
 seismology
Observer Program, Mars  search
USEMars Observer Program
obsidian  search
BTigneous rocks
 .volcanic rocks
 ..glasses
 ...obsidian
RTvolcanic glass
Obsidian Dome  search
BTUnited States
 .California
 ..Mono County California
 ...Obsidian Dome
RTLong Valley Caldera
 Inyo Domes
SNOne of the Inyo Domes in Owens Valley, Long Valley, E California. Added to Thesaurus in 1989.
obsidian hydration  search
USEhydration of glass
Ocala Group  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Paleogene
 ....Eocene
 .....upper Eocene
 ......Ocala Group
RTAlabama
 Florida
 Georgia
 Crystal River Formation
 Floridan Aquifer
SNIncludes Tivola Tongue, Inglis Formation, Williston Formation, Crystal River Formation.
occurrence  search
RTmetamorphic rocks
ocean  search
ocean basins  search
RTabyssal plains
 age
 basins
 continental drift
 crust
 Deep Sea Drilling Project
 geosynclines
 marginal basins
 marine geology
 Ocean Drilling Program
 ocean floors
 oceanization
 oceanography
 paleo-oceanography
 paleogeography
 plate tectonics
 sea-floor spreading
 tec
SNUsed for studies on the major ocean basins, their origin, evolution and present configuration. For basins found within the oceans and for sedimentation studies, see ocean floors.
ocean bottom seismographs  search
BTseismographs
 .ocean bottom seismographs
UFocean-bottom seismometers
RThydrophones
 seismic methods
ocean circulation  search
RTAntarctic Bottom Water
 bottom currents
 boundary layer
 carbonate compensation depth
 circulation
 climate-induced circulation
 continental shelf
 continental slope
 current directions
 diffusion
 downwelling
 HEBBLE
 longshore currents
 marine geology
 North Atlantic
SNPrimarily used for special indexes.
Ocean County New Jersey  search
BTUnited States
 .New Jersey
 ..Ocean County New Jersey
RTGreat Bay
 Pine Barrens
SNOn the Atlantic Ocean in E New Jersey.
ocean crust  search
USEoceanic crust
ocean currents  search
BTcurrents
 .ocean currents
NTlongshore currents
RTcontinental shelf
 ocean circulation
 upwelling
 downwelling
 paleocurrents
 fluvial currents
 tidal currents
SNBefore 1985, also search currents AND ocean circulation. Added to Thesaurus in 1985.
Ocean Drilling Program  search
NTLeg 100
 Leg 101
 Leg 102
 Leg 103
 Leg 104
 Leg 105
 Leg 106
 Leg 107
 Leg 108
 Leg 109
 Leg 110
 Leg 111
 Leg 112
 Leg 113
 Leg 114
 Leg 115
 Leg 116
 Leg 117
 Leg 118
 Leg 119
 Leg 120
 Leg 121
 Leg 122
 Leg 123
 Leg 124
 Leg 124E
 Leg 125
 Leg 126
 Leg 127
 Leg 128
 Leg 129
 Leg 130
 Leg 131
 Leg 132
 Leg 133
 Leg 134
 Leg 135
 Leg 136
 Leg 137
 Leg 138
 Leg 139
 Leg 140
 Leg 141
 Leg 142
 Leg 143
 Leg 144
 Leg 145
 Leg 146
 Leg 147
 Leg 148
 Leg 149
 Leg 150
 Leg 151
 Leg 152
 Leg 153
 Leg 154
 Leg 155
 Leg 156
 Leg 157
 Leg 158
 Leg 159
 Leg 159T
 Leg 160
 Leg 161
 Leg 162
 Leg 163
 Leg 164
 Leg 165
 Leg 166
 Leg 167
 Leg 168
 Leg 169
 Leg 169S
 Leg 170
 Leg 171A
 Leg 171B
 Leg 172
 Leg 173
 Leg 174A
 Leg 174B
 Leg 175
 Leg 176
 Leg 177
UFODP
RTocean basins
 ocean floors
 oceanography
 marine geology
 research vessels
 Deep Sea Drilling Project
 JOIDES
 IPOD
SNA continuation of DSDP and IPOD, beginning with Leg 100. Added to Thesaurus in 1989.
ocean floors  search
UFsea floors
RTbottom features
 abyssal plains
 continental rise
 continental margin
 continental shelf
 continental slope
 bathymetric maps
 bathymetry
 hardground
 black smokers
 furrows
 dredging
 Deep Sea Drilling Project
 Exclusive Economic Zone
 fracture zones
 hydrothermal vent
SNUsed for discussions of features of ocean floors, as well as processes taking place there. For very large scale, perhaps hemispheric, oceanic features and activity, see ocean basins.
Ocean of Storms  search
BTMoon
 .Ocean of Storms
UFOceanus Procellarum
RTAristarchus
ocean ridges  search
USEmid-ocean ridges
ocean waves  search
NTbreaking waves
 catastrophic waves
 ideal waves
RTcirculation
 diffraction
 internal waves
 littoral erosion
 longshore currents
 marine geology
 ocean circulation
 oceanography
 propagation
 seiches
 shoaling
 shorelines
 surges
 transformations
 tsunamis
 waves
SNUsed for special indexes or for papers relating physical oceanography to marine geology.
ocean, world  search
USEworld ocean
ocean-bottom seismometers  search
USEocean bottom seismographs
ocean-floor spreading  search
USEsea-floor spreading
ocean-island basalts  search
BTigneous rocks
 .volcanic rocks
 ..basalts
 ...ocean-island basalts
UFOIB
RTalkali basalts
 nephelinite
 tholeiite
SNTholeiites, alkali basalts and nephelinites found on submarine volcanoes which form ocean islands away from ocean ridges. Chemically distinct from mid-ocean ridge basalts.
Oceana County Michigan  search
BTUnited States
 .Michigan
 ..Michigan Lower Peninsula
 ...Oceana County Michigan
Oceania  search
NTKiribati
 Melanesia
 Micronesia
 Polynesia
UFOceanica
RTAustralia
 New Zealand
 Pacific Ocean
 West Pacific Ocean Islands
 Australasia
 Malay Archipelago
SNCollective name for the islands and island groups of the central and south Pacific Ocean. Before 1981, Pacific Ocean was a broader term. See East Pacific Ocean Islands, West Pacific Ocean Islands, and Malay Archipelago for other Pacific islands which coul
oceanic  search
SNA valid term through 1977. See oceanic crust.
oceanic crust  search
BTcrust
 .oceanic crust
UFocean crust
 oceanic genesis
RTtransition zones
 plate tectonics
 underplating
 ophiolite complexes
 sheeted dikes
 oceanization
 Iceland Research Drilling Project
 Rivera Ocean Seismic Experiment
SNAlso search (oceanic type OR oceanic) AND crust; (oceanic AND genesis).
oceanic genesis  search
USEoceanic crust
oceanic ridges  search
SNA valid term through 1971. After 1971, use mid-ocean ridges.
oceanic trench  search
USEtrenches
oceanic type  search
SNAs of 1981, no longer a valid term for GeoRef. Use oceanic crust.
Oceanica  search
USEOceania
oceanite  search
BTigneous rocks
 .volcanic rocks
 ..basalts
 ...oceanite
oceanization  search
RTcontinental crust
 ocean basins
 oceanic crust
 rifting
 plate tectonics
SNProcess in which oceanic crust is formed from continental crust. Added to Thesaurus in 1995.
Oceanographer fracture zone  search
BTAtlantic Ocean
 .North Atlantic
 ..Oceanographer fracture zone
RTMid-Atlantic Ridge
 Leg 82
SNN Atlantic, across the Mid-Atlantic Ridge. Indexed with Mid-Atlantic Ridge as applicable. Added to Thesaurus in 1989.
oceanography  search
UFoceanology
RTbottom features
 abyssal plains
 convection
 air-sea interface
 Alvin
 AMCOR
 continental shelf
 continental slope
 bottom water
 catalogs
 bibliography
 Continental Offshore Stratigraphic Test
 bathymetry
 boundary layer
 carbonate compensation depth
 CYANA
 Deep Sea Dr
SNUsed for special indexes and the discipline as a whole.
Oceanography (category)  search
SNOceanography (including marine geology), GeoRef category code 07, is one of thirty categories used to classify documents in GeoRef. Each reference in GeoRef is assigned one or more categories. Categories can be used, in addition to Terms, to refine search
oceanology  search
USEoceanography
oceans  search
SNA valid index term through 1977 used in combination with circulation (i.e. oceans, circulation). After 1977 use ocean circulation.
Oceanus Procellarum  search
USEOcean of Storms
ocher  search
UFochre
RTarchaeology
 clay mineralogy
 iron ores
 oxides
 iron oxides
 laterites
 hematite
 limonite
SNAdded to Thesaurus in 1985.
Ochiltree County Texas  search
BTUnited States
 .Texas
 ..Ochiltree County Texas
ochre  search
USEocher
Ocoee Series  search
USEOcoee Supergroup
Ocoee Supergroup  search
UFOcoee Series
RTPrecambrian
 Neoproterozoic
 Cambrian
 Virginia
 North Carolina
 Georgia
 Tennessee
 lower Paleozoic
 Great Smoky Group
 Walden Creek Group
SNAlso used for the Ocoee Series which was a Precambrian provincial series. Virginia, Tennessee, North Carolina, and Georgia. Neoproterozic. May also include lower Paleozoic units. Indexed with ages as applicable. Added to Thesaurus in 1995.
Oconee County Georgia  search
BTUnited States
 .Georgia
 ..Oconee County Georgia
SNNE central Georgia.
Oconee County South Carolina  search
BTUnited States
 .South Carolina
 ..Oconee County South Carolina
RTLake Jocassee
SNExtreme NW South Carolina.
Oconto County Wisconsin  search
BTUnited States
 .Wisconsin
 ..Oconto County Wisconsin
octahedral iron ore  search
USEmagnetite
octahedrite  search
BTmeteorites
 .iron meteorites
 ..octahedrite
NTCanyon Diablo Meteorite
 Gibeon Meteorite
 Henbury Meteorite
 Toluca Meteorite
 Weekeroo Station Meteorite
 Wolf Creek Meteorite
UFoctahedrites
RTColdwater Meteorites
 Odessa Meteorite
SNAdded to Thesaurus in 1981.
octahedrite (mineral)  search
USEanatase
octahedrites  search
USEoctahedrite
Octocorallia  search
BTInvertebrata
 .Coelenterata
 ..Anthozoa
 ...Octocorallia
OD  search
Odate Japan  search
BTnshu
 .Akita Japan
 ..Odate Japan
SNCity in N Honshu.
Odenwald  search
BTEurope
 .Central Europe
 ..Germany
 ...Odenwald
RTBavaria Germany
 Baden-Wurttemberg Germany
 Bergstrasse
 Hesse Germany
 Katzenbuckel
SNMountainous region in SW Germany. Indexed with states as applicable.
Oder Valley  search
BTEurope
 .Oder Valley
UFOdra River valley
RTPoland
 Czech Republic
 Mecklenburg-Western Pomerania Germany
 Brandenburg Germany
 Moravia
 Warta River
SNRiver valley. Indexed with countries as applicable.
Odessa City Ukraine  search
BTEurope
 .Ukraine
 ..Odessa Ukraine
 ...Odessa City Ukraine
RTOdessa Meteorite
SNCity in S Ukraine. Before 1993, also search Odessa Ukraine. This term has multiple hierarchies.
Odessa Meteorite  search
BTmeteorites
 .Odessa Meteorite
RTTexas
 Ukraine
 octahedrite
 H chondrites
 Odessa City Ukraine
SNRefers to both the meteorite found in Texas (octahedrite) and to the meteorite found in the Ukraine (H chondrite). Before 1981, also search Odessa AND meteorites. Indexed with octahedrite or H chondrites as applicable. Added to Thesaurus in 1981.
Odessa Texas  search
BTUnited States
 .Texas
 ..Ector County Texas
 ...Odessa Texas
RTimpact features
SNCity in W Texas.
Odessa Ukraine  search
BTEurope
 .Ukraine
 ..Odessa Ukraine
NTOdessa City Ukraine
SNOblast on the Black Sea. This term has multiple hierarchies.
Odessa Washington  search
BTUnited States
 .Washington
 ..Lincoln County Washington
 ...Odessa Washington
SNTown in E Washington.
Odonata  search
BTInvertebrata
 .Arthropoda
 ..Mandibulata
 ...Insecta
 ....Pterygota
 .....Palaeoptera
 ......Odonata
SNOrder. Before 1995, also search Odonatopteroida.
Odonatopteroida  search
SNNo longer a valid term for GeoRef. See Odonata.
Odontoceti  search
BTChordata
 .Vertebrata
 ..Tetrapoda
 ...Mammalia
 ....Theria
 .....Eutheria
 ......Cetacea
 .......Odontoceti
SNSuborder.
Odontopleurida  search
BTInvertebrata
 .Arthropoda
 ..Trilobitomorpha
 ...Trilobita
 ....Odontopleurida
Odontornithes  search
BTChordata
 .Vertebrata
 ..Tetrapoda
 ...Aves
 ....Neornithes
 .....Odontornithes
SNSubclass.
ODP  search
USEOcean Drilling Program
ODP Site 1000  search
BTOcean Drilling Program
 .Leg 165
 ..ODP Site 1000
RTCaribbean Sea
 Nicaragua Rise
SNN Nicaragua Rise, SW of Jamaica, W central Caribbean Sea.
ODP Site 1001  search
BTOcean Drilling Program
 .Leg 165
 ..ODP Site 1001
RTCaribbean Sea
 Nicaragua Rise
SNLower Nicaragua Rise, Hess Escarpment, central Caribbean Sea.
ODP Site 1002  search
BTOcean Drilling Program
 .Leg 165
 ..ODP Site 1002
RTCaribbean Sea
 Cariaco Basin
 DSDP Site 147
SNCariaco Basin, SE Caribbean Sea.
ODP Site 1003  search
BTOcean Drilling Program
 .Leg 166
 ..ODP Site 1003
RTGreat Bahama Bank
SNW margin of Great Bahama Bank, Straits of Florida, NW Atlantic.
ODP Site 1004  search
BTOcean Drilling Program
 .Leg 166
 ..ODP Site 1004
RTGreat Bahama Bank
SNW edge of Great Bahama Bank, Straits of Florida, NW Atlantic.
ODP Site 1005  search
BTOcean Drilling Program
 .Leg 166
 ..ODP Site 1005
RTGreat Bahama Bank
SNW margin of Great Bahama Bank, Straits of Florida, NW Atlantic.
ODP Site 1006  search
BTOcean Drilling Program
 .Leg 166
 ..ODP Site 1006
RTNorth Atlantic
 Equatorial Atlantic
SNW of Great Bahama Bank, Straits of Florida, NW Atlantic.
ODP Site 1007  search
BTOcean Drilling Program
 .Leg 166
 ..ODP Site 1007
RTGreat Bahama Bank
SNToe of slope of W Great Bahama Bank, Straits of Florida, NW Atlantic.
ODP Site 1008  search
BTOcean Drilling Program
 .Leg 166
 ..ODP Site 1008
RTGreat Bahama Bank
SNWSW margin of Great Bahama Bank, Straits of Florida, NW Atlantic.
ODP Site 1009  search
BTOcean Drilling Program
 .Leg 166
 ..ODP Site 1009
RTGreat Bahama Bank
SNWSW margin of Great Bahama Bank, Straits of Florida, NW Atlantic.
ODP Site 1010  search
BTOcean Drilling Program
 .Leg 167
 ..ODP Site 1010
RTNortheast Pacific
SNCalifornia margin, off N Baja California, NE Pacific.
ODP Site 1011  search
BTOcean Drilling Program
 .Leg 167
 ..ODP Site 1011
RTNortheast Pacific
SNAnimal Basin, California margin, NE Pacific.
ODP Site 1012  search
BTOcean Drilling Program
 .Leg 167
 ..ODP Site 1012
RTNortheast Pacific
SNEast Cortez Basin, W of San Diego California, NE Pacific.
ODP Site 1013  search
BTOcean Drilling Program
 .Leg 167
 ..ODP Site 1013
RTSan Nicolas Basin
SNSan Nicolas Basin, W of San Diego California, NE Pacific.
ODP Site 1014  search
BTOcean Drilling Program
 .Leg 167
 ..ODP Site 1014
RTNortheast Pacific
SNTanner Basin, California margin, W of San Diego California, NE Pacific.
ODP Site 1015  search
BTOcean Drilling Program
 .Leg 167
 ..ODP Site 1015
RTSanta Monica Basin
SNSanta Monica Basin, California continental borderland, NE Pacific.
ODP Site 1016  search
BTOcean Drilling Program
 .Leg 167
 ..ODP Site 1016
RTNortheast Pacific
 Point Conception
SNCalifornia margin, off Point Conception, NE Pacific.
ODP Site 1017  search
BTOcean Drilling Program
 .Leg 167
 ..ODP Site 1017
RTNortheast Pacific
SNCalifornia margin, NE Pacific.
ODP Site 1018  search
BTOcean Drilling Program
 .Leg 167
 ..ODP Site 1018
RTNortheast Pacific
SNCalifornia margin, W of Santa Cruz California, NE Pacific.
ODP Site 1019  search
BTOcean Drilling Program
 .Leg 167
 ..ODP Site 1019
RTNortheast Pacific
 Eel River basin
SNEel River basin, California margin, NE Pacific.
ODP Site 1020  search
BTOcean Drilling Program
 .Leg 167
 ..ODP Site 1020
RTGorda Rise
SNE flank of Gorda Rise, NE Pacific.
ODP Site 1021  search
BTOcean Drilling Program
 .Leg 167
 ..ODP Site 1021
RTNortheast Pacific
SNOuter Delgada Fan, S of Mendocino fracture zone, NE Pacific.
ODP Site 1022  search
BTOcean Drilling Program
 .Leg 167
 ..ODP Site 1022
RTNortheast Pacific
SNCalifornia continental slope, off Cape Mendocino, NE Pacific.
ODP Site 1023  search
BTOcean Drilling Program
 .Leg 168
 ..ODP Site 1023
RTCascadia Basin
SNCascadia Basin, E flank Juan de Fuca Ridge, NW Pacific.
ODP Site 1024  search
BTOcean Drilling Program
 .Leg 168
 ..ODP Site 1024
RTCascadia Basin
SNCascadia Basin, E flank Juan de Fuca Ridge, NW Pacific.
ODP Site 1025  search
BTOcean Drilling Program
 .Leg 168
 ..ODP Site 1025
RTCascadia Basin
SNCascadia Basin, E flank Juan de Fuca Ridge, NW Pacific.
ODP Site 1026  search
BTOcean Drilling Program
 .Leg 168
 ..ODP Site 1026
RTCascadia Basin
SNCascadia Basin, E flank Juan de Fuca Ridge, NW Pacific.
ODP Site 1027  search
BTOcean Drilling Program
 .Leg 168
 ..ODP Site 1027
RTCascadia Basin
SNCascadia Basin, E flank Juan de Fuca Ridge, NW Pacific.
ODP Site 1028  search
BTOcean Drilling Program
 .Leg 168
 ..ODP Site 1028
RTCascadia Basin
SNCascadia Basin, E flank Juan de Fuca Ridge, NW Pacific.
ODP Site 1029  search
BTOcean Drilling Program
 .Leg 168
 ..ODP Site 1029
RTCascadia Basin
SNCascadia Basin, E flank Juan de Fuca Ridge, NW Pacific.
ODP Site 1030  search
BTOcean Drilling Program
 .Leg 168
 ..ODP Site 1030
RTCascadia Basin
SNCascadia Basin, E flank Juan de Fuca Ridge, NW Pacific.
ODP Site 1031  search
BTOcean Drilling Program
 .Leg 168
 ..ODP Site 1031
RTCascadia Basin
SNCascadia Basin, E flank Juan de Fuca Ridge, NW Pacific.
ODP Site 1032  search
BTOcean Drilling Program
 .Leg 168
 ..ODP Site 1032
RTCascadia Basin
SNCascadia Basin, E flank Juan de Fuca Ridge, NW Pacific.
ODP Site 1033  search
BTOcean Drilling Program
 .Leg 169S
 ..ODP Site 1033
RTBritish Columbia
 Vancouver Island
 Saanich Inlet
SNSaanich Inlet, SE Vancouver Island, SW British Columbia.
ODP Site 1034  search
BTOcean Drilling Program
 .Leg 169S
 ..ODP Site 1034
RTBritish Columbia
 Vancouver Island
 Saanich Inlet
SNSaanich Inlet, SE Vancouver Island, SW British Columbia.
ODP Site 1035  search
BTOcean Drilling Program
 .Leg 169
 ..ODP Site 1035
RTJuan de Fuca Ridge
 Leg 139
 ODP Site 856
SNMiddle Valley of the N Juan de Fuca Ridge area, NE Pacific.
ODP Site 1036  search
BTOcean Drilling Program
 .Leg 169
 ..ODP Site 1036
RTJuan de Fuca Ridge
 Leg 139
 ODP Site 858
SNMiddle Valley of the N Juan de Fuca Ridge area, NE Pacific.
ODP Site 1037  search
BTOcean Drilling Program
 .Leg 169
 ..ODP Site 1037
RTEscanaba Trough
SNEscanaba Trough, NE Pacific.
ODP Site 1038  search
BTOcean Drilling Program
 .Leg 169
 ..ODP Site 1038
RTGorda Rise
 Escanaba Trough
SNS Gorda Rise, Escanaba Trough, NE Pacific.
ODP Site 1039  search
BTOcean Drilling Program
 .Leg 170
 ..ODP Site 1039
RTCosta Rica
 Northeast Pacific
 Middle America Trench
SNCosta Rica margin, NE Pacific.
ODP Site 1040  search
BTOcean Drilling Program
 .Leg 170
 ..ODP Site 1040
RTCosta Rica
 Northeast Pacific
 DSDP Site 565
SNCosta Rica margin, NE Pacific.
ODP Site 1041  search
BTOcean Drilling Program
 .Leg 170
 ..ODP Site 1041
RTCosta Rica
 Northeast Pacific
SNCosta Rica margin, NE Pacific.
ODP Site 1042  search
BTOcean Drilling Program
 .Leg 170
 ..ODP Site 1042
RTCosta Rica
 Northeast Pacific
SNCosta Rica margin, NE Pacific.
ODP Site 1043  search
BTOcean Drilling Program
 .Leg 170
 ..ODP Site 1043
RTCosta Rica
 Northeast Pacific
SNCosta Rica margin, NE Pacific.
ODP Site 1044  search
BTOcean Drilling Program
 .Leg 171A
 ..ODP Site 1044
RTNorth Atlantic
 Barbados
 ODP Site 672
SNN flank Tiburon Rise, E of Northern Barbados accretionary prism, NW Atlantic.
ODP Site 1045  search
BTOcean Drilling Program
 .Leg 171A
 ..ODP Site 1045
RTNorth Atlantic
 ODP Site 949
SNW of Northern Barbados accretionary prism, NW Atlantic.
ODP Site 1046  search
BTOcean Drilling Program
 .Leg 171A
 ..ODP Site 1046
RTNorth Atlantic
 ODP Site 949
ODP Site 1047  search
BTOcean Drilling Program
 .Leg 171A
 ..ODP Site 1047
RTNorth Atlantic
 ODP Site 676
SNNorthern Barbados accretionary prism, NW Atlantic. Reoccupation of ODP Site 676.
ODP Site 1048  search
BTOcean Drilling Program
 .Leg 171A
 ..ODP Site 1048
RTNorth Atlantic
SNN flank of Tiburon Rise, E of Northern Barbados accretionary prism, NW Atlantic.
ODP Site 1049  search
BTOcean Drilling Program
 .Leg 171B
 ..ODP Site 1049
RTNorth Atlantic
 Blake Nose
 DSDP Site 390
SNE Blake Nose margin, NW Atlantic. Reoccupation of DSDP Site 390.
ODP Site 1050  search
BTOcean Drilling Program
 .Leg 171B
 ..ODP Site 1050
RTNorth Atlantic
 Blake Nose
SNBlake Nose, NW Atlantic.
ODP Site 1051  search
BTOcean Drilling Program
 .Leg 171B
 ..ODP Site 1051
RTNorth Atlantic
 Blake Nose
SNBlake Nose, NW Atlantic.
ODP Site 1052  search
BTOcean Drilling Program
 .Leg 171B
 ..ODP Site 1052
RTNorth Atlantic
 Blake Nose
SNBlake Nose, NW Atlantic.
ODP Site 1053  search
BTOcean Drilling Program
 .Leg 171B
 ..ODP Site 1053
RTNorth Atlantic
 Blake Nose
SNEscarpment, Blake Nose, NW Atlantic.
ODP Site 1054  search
BTOcean Drilling Program
 .Leg 172
 ..ODP Site 1054
RTNorth Atlantic
SNCarolina Slope, NW Atlantic.
ODP Site 1055  search
BTOcean Drilling Program
 .Leg 172
 ..ODP Site 1055
RTNorth Atlantic
SNCarolina Slope, NW Atlantic.
ODP Site 1056  search
BTOcean Drilling Program
 .Leg 172
 ..ODP Site 1056
RTBlake-Bahama Outer Ridge
SNBlake-Bahama Outer Ridge, NW Atlantic.
ODP Site 1057  search
BTOcean Drilling Program
 .Leg 172
 ..ODP Site 1057
RTBlake-Bahama Outer Ridge
SNBlake-Bahama Outer Ridge, NW Atlantic.
ODP Site 1058  search
BTOcean Drilling Program
 .Leg 172
 ..ODP Site 1058
RTBlake-Bahama Outer Ridge
SNBlake-Bahama Outer Ridge, NW Atlantic.
ODP Site 1059  search
BTOcean Drilling Program
 .Leg 172
 ..ODP Site 1059
RTBlake-Bahama Outer Ridge
SNBlake-Bahama Outer Ridge, NW Atlantic.
ODP Site 1060  search
BTOcean Drilling Program
 .Leg 172
 ..ODP Site 1060
RTBlake-Bahama Outer Ridge
SNBlake-Bahama Outer Ridge, NW Atlantic.
ODP Site 1061  search
BTOcean Drilling Program
 .Leg 172
 ..ODP Site 1061
RTBlake-Bahama Outer Ridge
SNBlake-Bahama Outer Ridge, NW Atlantic.
ODP Site 1062  search
BTOcean Drilling Program
 .Leg 172
 ..ODP Site 1062
RTBlake-Bahama Outer Ridge
SNBlake-Bahama Outer Ridge, NW Atlantic.
ODP Site 1063  search
BTOcean Drilling Program
 .Leg 172
 ..ODP Site 1063
RTBermuda Rise
 Sargasso Sea
SNNE Bermuda Rise, N Sargasso Sea, NW Atlantic.
ODP Site 1064  search
BTOcean Drilling Program
 .Leg 172
 ..ODP Site 1064
RTSohm abyssal plain
SNSohm abyssal plain, NW Atlantic.
ODP Site 1065  search
BTOcean Drilling Program
 .Leg 173
 ..ODP Site 1065
RTIberian abyssal plain
SNN edge of S Iberian abyssal plain, NE Atlantic.
ODP Site 1067  search
BTOcean Drilling Program
 .Leg 173
 ..ODP Site 1067
RTIberian abyssal plain
SNN edge of S Iberian abyssal plain, NE Atlantic.
ODP Site 1068  search
BTOcean Drilling Program
 .Leg 173
 ..ODP Site 1068
RTIberian abyssal plain
SNNear S edge of Iberian abyssal plain, NE Atlantic.
ODP Site 1069  search
BTOcean Drilling Program
 .Leg 173
 ..ODP Site 1069
RTIberian abyssal plain
SNS Iberian abyssal plain, NE Atlantic.
ODP Site 1070  search
BTOcean Drilling Program
 .Leg 173
 ..ODP Site 1070
RTNorth Atlantic
SNOff the Iberian continental margin, NE Atlantic.
ODP Site 1071  search
BTOcean Drilling Program
 .Leg 174A
 ..ODP Site 1071
RTNorth Atlantic
SNNew Jersey outer shelf, NW Atlantic.
ODP Site 1072  search
BTOcean Drilling Program
 .Leg 174A
 ..ODP Site 1072
RTNorth Atlantic
SNNew Jersey outer shelf, NW Atlantic.
ODP Site 1073  search
BTOcean Drilling Program
 .Leg 174A
 ..ODP Site 1073
RTNorth Atlantic
SNNew Jersey upper continental slope, NW Atlantic.
ODP Site 1074  search
BTOcean Drilling Program
 .Leg 174B
 ..ODP Site 1074
RTNorth Atlantic
 Mid-Atlantic Ridge
SNN central Atlantic Ocean near the Mid-Atlantic Ridge axis.
ODP Site 1075  search
BTOcean Drilling Program
 .Leg 175
 ..ODP Site 1075
RTAngola Basin
SNL Congo Basin, NE Angola Basin, SE Atlantic Ocean.
ODP Site 1076  search
BTOcean Drilling Program
 .Leg 175
 ..ODP Site 1076
RTAngola Basin
SNL Congo Basin, NE Angola Basin, SE Atlantic Ocean.
ODP Site 1077  search
BTOcean Drilling Program
 .Leg 175
 ..ODP Site 1077
RTAngola Basin
SNL Congo Basin, NE Angola Basin, SE Atlantic Ocean.
ODP Site 1078  search
BTOcean Drilling Program
 .Leg 175
 ..ODP Site 1078
RTAngola Basin
SNMiddle Angola Basin, SE Atlantic Ocean.
ODP Site 1079  search
BTOcean Drilling Program
 .Leg 175
 ..ODP Site 1079
RTAngola Basin
SNMiddle Angola Basin, SE Atlantic Ocean.
ODP Site 1080  search
BTOcean Drilling Program
 .Leg 175
 ..ODP Site 1080
RTAngola Basin
SNS Angola Basin, SE Atlantic Ocean.
ODP Site 1081  search
BTOcean Drilling Program
 .Leg 175
 ..ODP Site 1081
RTWalvis Ridge
SNWalvis Ridge, SE Atlantic Ocean.
ODP Site 1082  search
BTOcean Drilling Program
 .Leg 175
 ..ODP Site 1082
RTCape Basin
SNN Cape Basin, SE Atlantic Ocean.
ODP Site 1083  search
BTOcean Drilling Program
 .Leg 175
 ..ODP Site 1083
RTCape Basin
SNCape Basin, SE Atlantic Ocean.
ODP Site 1084  search
BTOcean Drilling Program
 .Leg 175
 ..ODP Site 1084
RTCape Basin
SNN Cape Basin, SE Atlantic Ocean.
ODP Site 1085  search
BTOcean Drilling Program
 .Leg 175
 ..ODP Site 1085
RTCape Basin
SNMiddle Cape Basin, SE Atlantic Ocean.
ODP Site 1086  search
BTOcean Drilling Program
 .Leg 175
 ..ODP Site 1086
RTCape Basin
SNS Cape Basin, SE Atlantic Ocean.
ODP Site 1087  search
BTOcean Drilling Program
 .Leg 175
 ..ODP Site 1087
RTCape Basin
SNS Cape Basin, SE Atlantic Ocean.
ODP Site 1088  search
BTOcean Drilling Program
 .Leg 177
 ..ODP Site 1088
RTSouth Atlantic
SNAgulhas Ridge, SE Atlantic.
ODP Site 1089  search
BTOcean Drilling Program
 .Leg 177
 ..ODP Site 1089
RTSouth Atlantic
SNS Cape Basin, SE Atlantic.
ODP Site 1090  search
BTOcean Drilling Program
 .Leg 177
 ..ODP Site 1090
RTSouth Atlantic
SNS flank, Agulhas Ridge, SE Atlantic.
ODP Site 1091  search
BTOcean Drilling Program
 .Leg 177
 ..ODP Site 1091
RTSouth Atlantic
 Leg 114
SNW flank of Meteor Rise, SE Atlantic.
ODP Site 1092  search
BTOcean Drilling Program
 .Leg 177
 ..ODP Site 1092
RTSouth Atlantic
 Leg 114
SNN Meteor Rise, SE Atlantic.
ODP Site 1093  search
BTOcean Drilling Program
 .Leg 177
 ..ODP Site 1093
RTSouth Atlantic
SNN of Shona Ridge, SE Atlantic.
ODP Site 1094  search
BTOcean Drilling Program
 .Leg 177
 ..ODP Site 1094
RTSouth Atlantic
SNN of Bouvet Island, SE Atlantic.
ODP Site 625  search
BTOcean Drilling Program
 .Leg 100
 ..ODP Site 625
RTGulf of Mexico
SNW Florida continental slope, NE Gulf of Mexico. Added to Thesaurus in 1995.
ODP Site 626  search
BTOcean Drilling Program
 .Leg 101
 ..ODP Site 626
RTGulf of Mexico
 North Atlantic
 Straits of Florida
SNStraits of Florida. Leg 101. Added to Thesaurus in 1989.
ODP Site 627  search
BTOcean Drilling Program
 .Leg 101
 ..ODP Site 627
RTBlake Plateau
SNS Blake Plateau. Leg 101. Added to Thesaurus in 1989.
ODP Site 628  search
BTOcean Drilling Program
 .Leg 101
 ..ODP Site 628
RTLittle Bahama Bank
SNLittle Bahama Bank, NW Atlantic. Added to Thesaurus in 1993.
ODP Site 629  search
BTOcean Drilling Program
 .Leg 101
 ..ODP Site 629
RTLittle Bahama Bank
SNLittle Bahama Bank, NW Atlantic. Added to Thesaurus in 1993.
ODP Site 630  search
BTOcean Drilling Program
 .Leg 101
 ..ODP Site 630
RTLittle Bahama Bank
SNLittle Bahama Bank, NW Atlantic. Added to Thesaurus in 1993.
ODP Site 631  search
BTOcean Drilling Program
 .Leg 101
 ..ODP Site 631
RTBahamas
 Exuma Sound
SNExuma Sound, Bahamas, NW Atlantic. Added to Thesaurus in 1993.
ODP Site 632  search
BTOcean Drilling Program
 .Leg 101
 ..ODP Site 632
RTBahamas
 Exuma Sound
SNExuma Sound, Bahamas, NW Atlantic. Added to Thesaurus in 1993.
ODP Site 633  search
BTOcean Drilling Program
 .Leg 101
 ..ODP Site 633
RTBahamas
 Exuma Sound
SNExuma Sound, Bahamas, NW Atlantic. Added to Thesaurus in 1993.
ODP Site 634  search
BTOcean Drilling Program
 .Leg 101
 ..ODP Site 634
RTBahamas
 Northwest Providence Channel
SNNorthwest Providence Channel, Bahamas, NW Atlantic. Added to Thesaurus in 1993.
ODP Site 635  search
BTOcean Drilling Program
 .Leg 101
 ..ODP Site 635
RTBahamas
 Northwest Providence Channel
SNNorthwest Providence Channel, Bahamas, NW Atlantic. Added to Thesaurus in 1993.
ODP Site 636  search
BTOcean Drilling Program
 .Leg 101
 ..ODP Site 636
RTBahamas
 Northeast Providence Channel
SNNortheast Providence Channel, Bahamas, NW Atlantic. Added to Thesaurus in 1995.
ODP Site 637  search
BTOcean Drilling Program
 .Leg 103
 ..ODP Site 637
RTNorth Atlantic
SNW Galicia Bank margin, NW of Iberian Peninsula, NE Atlantic. Added to Thesaurus in 1993.
ODP Site 638  search
BTOcean Drilling Program
 .Leg 103
 ..ODP Site 638
RTNorth Atlantic
SNW Galicia Bank margin, NW of Iberian Peninsula, NE Atlantic. Added to Thesaurus in 1993.
ODP Site 639  search
BTOcean Drilling Program
 .Leg 103
 ..ODP Site 639
RTNorth Atlantic
SNW Galicia Bank margin, NW of Iberian Peninsula, NE Atlantic. Added to Thesaurus in 1993.
ODP Site 640  search
BTOcean Drilling Program
 .Leg 103
 ..ODP Site 640
RTNorth Atlantic
SNGalicia Bank margin, NW of Iberian Peninsula, NE Atlantic. Added to Thesaurus in 1993.
ODP Site 641  search
BTOcean Drilling Program
 .Leg 103
 ..ODP Site 641
RTNorth Atlantic
SNGalicia Bank margin, NW of Iberian Peninsula, NE Atlantic. Added to Thesaurus in 1993.
ODP Site 642  search
BTOcean Drilling Program
 .Leg 104
 ..ODP Site 642
RTVoring Plateau
SNOuter Voring Plateau, Norwegian Sea. Added to Thesaurus in 1993.
ODP Site 643  search
BTOcean Drilling Program
 .Leg 104
 ..ODP Site 643
RTVoring Plateau
SNNW slope of Voring Plateau, Norwegian Sea. Added to Thesaurus in 1993.
ODP Site 644  search
BTOcean Drilling Program
 .Leg 104
 ..ODP Site 644
RTVoring Plateau
SNInner Voring Plateau, Norwegian Sea. Added to Thesaurus in 1993.
ODP Site 645  search
BTOcean Drilling Program
 .Leg 105
 ..ODP Site 645
RTArctic Ocean
 Baffin Bay
SNNW Baffin Bay, Arctic Ocean. Added to Thesaurus in 1993.
ODP Site 646  search
BTOcean Drilling Program
 .Leg 105
 ..ODP Site 646
RTArctic Ocean
 Labrador Sea
SNSE Labrador Sea, Arctic Ocean. Added to Thesaurus in 1993.
ODP Site 647  search
BTOcean Drilling Program
 .Leg 105
 ..ODP Site 647
RTArctic Ocean
 Labrador Sea
SNN Labrador Sea, Arctic Ocean. Added to Thesaurus in 1993.
ODP Site 648  search
BTOcean Drilling Program
 .Leg 109
 ..ODP Site 648
BTOcean Drilling Program
 .Leg 106
 ..ODP Site 648
RTNorth Atlantic
 Mid-Atlantic Ridge
 Leg 153
SNSerocki volcano, rift valley near Mid-Atlantic Ridge, North Atlantic. This term has multiple hierarchies. Added to Thesaurus in 1993.
ODP Site 649  search
BTOcean Drilling Program
 .Leg 106
 ..ODP Site 649
RTLeg 153
 Snakepit hydrothermal field
SNSnake Pit hydrothermal vent area, 25 km S of Kane fracture zone, N Mid-Atlantic Ridge. Added to Thesaurus in 1993.
ODP Site 650  search
BTOcean Drilling Program
 .Leg 107
 ..ODP Site 650
RTTyrrhenian Sea
SNW Marsili Basin, Tyrrhenian Sea, Mediterranean Sea. Added to Thesaurus in 1995.
ODP Site 651  search
BTOcean Drilling Program
 .Leg 107
 ..ODP Site 651
RTTyrrhenian Sea
SNVavilov Basin, Tyrrhenian Sea, Mediterranean Sea. Added to Thesaurus in 1995.
ODP Site 652  search
BTOcean Drilling Program
 .Leg 107
 ..ODP Site 652
RTTyrrhenian Sea
SNLower Sardinian margin, Tyrrhenian Sea, Mediterranean Sea. Added to Thesaurus in 1993.
ODP Site 653  search
BTOcean Drilling Program
 .Leg 107
 ..ODP Site 653
RTTyrrhenian Sea
 DSDP Site 132
SNE rim Cornaglia Basin, W Tyrrhenian Sea, Mediterranean Sea. Near DSDP Site 132. Added to Thesaurus in 1993.
ODP Site 654  search
BTOcean Drilling Program
 .Leg 107
 ..ODP Site 654
RTTyrrhenian Sea
SNUpper Sardinia margin, Tyrrhenian Sea, Mediterranean Sea. Added to Thesaurus in 1993.
ODP Site 655  search
BTOcean Drilling Program
 .Leg 107
 ..ODP Site 655
RTTyrrhenian Sea
SNRidge, W rim Vavilov Basin, central Tyrrhenian Sea, Mediterranean Sea. Added to Thesaurus in 1993.
ODP Site 656  search
BTOcean Drilling Program
 .Leg 107
 ..ODP Site 656
RTTyrrhenian Sea
SNDe Marchi Seamount, lower Sardinian margin, central Tyrrhenian Sea, Mediterranean Sea. Added to Thesaurus in 1993.
ODP Site 657  search
BTOcean Drilling Program
 .Leg 108
 ..ODP Site 657
RTCape Verde Basin
SNContinental rise, NW Africa, Cape Verde Basin, NE Atlantic. Added to Thesaurus in 1993.
ODP Site 658  search
BTOcean Drilling Program
 .Leg 108
 ..ODP Site 658
RTNorth Atlantic
SNContinental slope NW Africa, NE Atlantic. Added to Thesaurus in 1993.
ODP Site 659  search
BTOcean Drilling Program
 .Leg 108
 ..ODP Site 659
RTCape Verde Rise
SNCape Verde Rise, NE Atlantic. Added to Thesaurus in 1993.
ODP Site 660  search
BTOcean Drilling Program
 .Leg 108
 ..ODP Site 660
RTNorth Atlantic
SNNE of Kane Gap, NE Atlantic off W Africa. Added to Thesaurus in 1993.
ODP Site 661  search
BTOcean Drilling Program
 .Leg 108
 ..ODP Site 661
RTNorth Atlantic
SNEast of Kane Gap, NE Atlantic off W Africa. Added to Thesaurus in 1993.
ODP Site 662  search
BTOcean Drilling Program
 .Leg 108
 ..ODP Site 662
RTSouth Atlantic
 Mid-Atlantic Ridge
 Equatorial Atlantic
SNE Mid-Atlantic Ridge, S of Romanche fracture zone, SE Equatorial Atlantic region. Added to Thesaurus in 1993.
ODP Site 663  search
BTOcean Drilling Program
 .Leg 108
 ..ODP Site 663
RTSouth Atlantic
 Mid-Atlantic Ridge
 Equatorial Atlantic
SNE flank of Mid-Atlantic Ridge, S of Romanche fracture zone, SE Equatorial Atlantic area. Added to Thesaurus in 1993.
ODP Site 664  search
BTOcean Drilling Program
 .Leg 108
 ..ODP Site 664
RTNorth Atlantic
 Mid-Atlantic Ridge
 Equatorial Atlantic
SNE flank of the Mid-Atlantic Ridge, N of Romanche fracture zone, E Equatorial Atlantic. Added to Thesaurus in 1993.
ODP Site 665  search
BTOcean Drilling Program
 .Leg 108
 ..ODP Site 665
RTNortheast Pacific
 Sierra Leone Rise
 Equatorial Atlantic
SNNear SE margin Sierra Leone Rise, E Equatorial Atlantic. Added to Thesaurus in 1993.
ODP Site 666  search
BTOcean Drilling Program
 .Leg 108
 ..ODP Site 666
RTSierra Leone Rise
 Equatorial Atlantic
SNSE margin of Sierra Leone Rise, NE Equatorial Alantic. Added to Thesaurus in 1993.
ODP Site 667  search
BTOcean Drilling Program
 .Leg 108
 ..ODP Site 667
RTSierra Leone Rise
 Equatorial Atlantic
SNSierra Leone Rise, NE Equatorial Alantic. Added to Thesaurus in 1993.
ODP Site 668  search
BTOcean Drilling Program
 .Leg 108
 ..ODP Site 668
RTSierra Leone Rise
 Equatorial Atlantic
 DSDP Site 366
SNSierra Leone Rise, NE Equatorial Atlantic. Added to Thesaurus in 1993.
ODP Site 669  search
BTOcean Drilling Program
 .Leg 109
 ..ODP Site 669
RTNorth Atlantic
 Mid-Atlantic Ridge
 Kane fracture zone
 Leg 153
SNS Kane fracture zone, N Mid-Atlantic Ridge. Added to Thesaurus in 1993.
ODP Site 670  search
BTOcean Drilling Program
 .Leg 109
 ..ODP Site 670
RTNorth Atlantic
 Mid-Atlantic Ridge
 Snakepit hydrothermal field
SNMedian valley, W flank of rift valley, N Mid-Atlantic Ridge. Added to Thesaurus in 1993.
ODP Site 671  search
BTOcean Drilling Program
 .Leg 110
 ..ODP Site 671
RTNorth Atlantic
 Barbados Ridge
 Leg 156
SNNear Tiburon Rise, E of Barbados in Barbados accretionary ridge complex, NW Atlantic. Added to Thesaurus in 1993.
ODP Site 672  search
BTOcean Drilling Program
 .Leg 110
 ..ODP Site 672
RTNorth Atlantic
 ODP Site 1044
SNAtlantic abyssal plain at NW Tiburon Rise, E of Barbados, NW Atlantic. Added to Thesaurus in 1993.
ODP Site 673  search
BTOcean Drilling Program
 .Leg 110
 ..ODP Site 673
RTNorth Atlantic
SNNear Tiburon Rise, E of Barbados in Barbados Forearc, NW Atlantic. Added to Thesaurus in 1993.
ODP Site 674  search
BTOcean Drilling Program
 .Leg 110
 ..ODP Site 674
RTNorth Atlantic
SNNear Tiburon Rise, E of Barbados in Barbados Forearc, NW Atlantic. Added to Thesaurus in 1993.
ODP Site 675  search
BTOcean Drilling Program
 .Leg 110
 ..ODP Site 675
RTNorth Atlantic
 DSDP Site 542
SNNear Tiburon Rise, E of Barbados in Barbados Forearc. Near DSDP Site 542. Added to Thesaurus in 1993.
ODP Site 676  search
BTOcean Drilling Program
 .Leg 110
 ..ODP Site 676
RTNorth Atlantic
 ODP Site 1047
SNNear Tiburon Rise, E of Barbados in Barbados Forearc, NW Atlantic. Added to Thesaurus in 1993.
ODP Site 677  search
BTOcean Drilling Program
 .Leg 111
 ..ODP Site 677
RTNortheast Pacific
 Equatorial Pacific
 DSDP Site 504
SNE Equatorial Pacific, off Colombia. Near DSDP Site 504. Added to Thesaurus in 1993.
ODP Site 678  search
BTOcean Drilling Program
 .Leg 111
 ..ODP Site 678
RTNortheast Pacific
 Equatorial Pacific
 DSDP Site 504
SNE Equatorial Pacific, off Colombia. Near DSDP Site 504. Added to Thesaurus in 1993.
ODP Site 679  search
BTOcean Drilling Program
 .Leg 112
 ..ODP Site 679
RTSoutheast Pacific
 Equatorial Pacific
SNPeru outer shelf, Lima Basin, SE Equatorial Pacific. Added to Thesaurus in 1993.
ODP Site 680  search
BTOcean Drilling Program
 .Leg 112
 ..ODP Site 680
RTSoutheast Pacific
 Equatorial Pacific
SNPeru continental margin, Lima Basin, SE Equatorial Pacific. Added to Thesaurus in 1993.
ODP Site 681  search
BTOcean Drilling Program
 .Leg 112
 ..ODP Site 681
RTSoutheast Pacific
 Equatorial Pacific
SNPeru continental slope, SE Equatorial Pacific. Added to Thesaurus in 1993.
ODP Site 682  search
BTOcean Drilling Program
 .Leg 112
 ..ODP Site 682
RTSoutheast Pacific
 Equatorial Pacific
 Peru-Chile Trench
SNPeru-Chile Trench, SE Equatorial Pacific. Added to Thesaurus in 1993.
ODP Site 683  search
BTOcean Drilling Program
 .Leg 112
 ..ODP Site 683
RTSoutheast Pacific
 Equatorial Pacific
SNPeru continental margin, Yaquina Basin area, SE Equatorial Pacific. Added to Thesaurus in 1993.
ODP Site 684  search
BTOcean Drilling Program
 .Leg 112
 ..ODP Site 684
RTSoutheast Pacific
SNPeru continental slope, SE Pacific. Added to Thesaurus in 1993.
ODP Site 685  search
BTOcean Drilling Program
 .Leg 112
 ..ODP Site 685
RTSoutheast Pacific
 Equatorial Pacific
SNPeru continental margin, near Peru-Chile Trench, SE Equatorial Pacific. Added to Thesaurus in 1993.
ODP Site 686  search
BTOcean Drilling Program
 .Leg 112
 ..ODP Site 686
RTSoutheast Pacific
SNWest Pisco Basin, off Peru, SE Pacific. Added to Thesaurus in 1993.
ODP Site 687  search
BTOcean Drilling Program
 .Leg 112
 ..ODP Site 687
RTSoutheast Pacific
 Equatorial Pacific
SNLima Platform-Lima Basin, SE Equatorial Pacific. Added to Thesaurus in 1993.
ODP Site 688  search
BTOcean Drilling Program
 .Leg 112
 ..ODP Site 688
RTSoutheast Pacific
 Equatorial Pacific
SNPeru continental margin, SE Equatorial Pacific. Added to Thesaurus in 1993.
ODP Site 689  search
BTOcean Drilling Program
 .Leg 113
 ..ODP Site 689
RTAntarctic Ocean
 Maud Rise
SNMaud Rise, Antarctic Ocean. Added to Thesaurus in 1993.
ODP Site 690  search
BTOcean Drilling Program
 .Leg 113
 ..ODP Site 690
RTAntarctic Ocean
 Maud Rise
SNSW Maud Rise, Antarctic Ocean. Added to Thesaurus in 1993.
ODP Site 691  search
BTOcean Drilling Program
 .Leg 113
 ..ODP Site 691
RTAntarctic Ocean
 Weddell Sea
SNE Antarctica continental slope, Weddell Sea margin. Added to Thesaurus in 1993.
ODP Site 692  search
BTOcean Drilling Program
 .Leg 113
 ..ODP Site 692
RTAntarctic Ocean
 Weddell Sea
SNSW of Wegener Canyon, Weddell Sea margin. Added to Thesaurus in 1993.
ODP Site 693  search
BTOcean Drilling Program
 .Leg 113
 ..ODP Site 693
RTAntarctic Ocean
 Weddell Sea
SNSW of Wegener Canyon, SW Weddell Sea margin. Added to Thesaurus in 1993.
ODP Site 694  search
BTOcean Drilling Program
 .Leg 113
 ..ODP Site 694
RTAntarctic Ocean
 Weddell Sea
SNN abyssal plain, Weddell Basin, Antarctic Ocean. Added to Thesaurus in 1993.
ODP Site 695  search
BTOcean Drilling Program
 .Leg 113
 ..ODP Site 695
RTAntarctic Ocean
SNSE South Orkney microcontinent, Antarctic Ocean N of Weddell Sea. Added to Thesaurus in 1993.
ODP Site 696  search
BTOcean Drilling Program
 .Leg 113
 ..ODP Site 696
RTAntarctic Ocean
 Scotia Ridge
SNSE margin South Orkney microcontinent, South Scotia Ridge, Antarctic Ocean, N of Weddell Sea. Added to Thesaurus in 1993.
ODP Site 697  search
BTOcean Drilling Program
 .Leg 113
 ..ODP Site 697
RTAntarctic Ocean
SNJane Basin, Antarctic Ocean N of Weddell Sea. Added to Thesaurus in 1993.
ODP Site 698  search
BTOcean Drilling Program
 .Leg 114
 ..ODP Site 698
RTSouth Atlantic
SNE NE of South Georgia Rise, SW Atlantic. Added to Thesaurus in 1993.
ODP Site 699  search
BTOcean Drilling Program
 .Leg 114
 ..ODP Site 699
RTSouth Atlantic
SNNE of South Georgia Rise, SW Atlantic. Added to Thesaurus in 1993.
ODP Site 700  search
BTOcean Drilling Program
 .Leg 114
 ..ODP Site 700
RTSouth Atlantic
SNW East Georgia Basin, on NE slope of South Georgia Rise, SW Atlantic. Added to Thesaurus in 1993.
ODP Site 701  search
BTOcean Drilling Program
 .Leg 114
 ..ODP Site 701
RTSouth Atlantic
 Mid-Atlantic Ridge
SNW margin S Mid-Atlantic Ridge, E of Islas Orcadas Rise. Added to Thesaurus in 1993.
ODP Site 702  search
BTOcean Drilling Program
 .Leg 114
 ..ODP Site 702
RTSouth Atlantic
SNCentral Islas Orcadas Rise, SW Atlantic. Added to Thesaurus in 1993.
ODP Site 703  search
BTOcean Drilling Program
 .Leg 114
 ..ODP Site 703
RTSouth Atlantic
SNMeteor Rise, SE Atlantic Ocean. Added to Thesaurus in 1993.
ODP Site 704  search
BTOcean Drilling Program
 .Leg 114
 ..ODP Site 704
RTSouth Atlantic
SNS Meteor Rise, SE Atlantic Ocean. Added to Thesaurus in 1993.
ODP Site 705  search
BTOcean Drilling Program
 .Leg 115
 ..ODP Site 705
RTIndian Ocean
SNE Mascarene Plateau, NE margin Nazareth Bank, W Indian Ocean. Added to Thesaurus in 1993.
ODP Site 706  search
BTOcean Drilling Program
 .Leg 115
 ..ODP Site 706
RTIndian Ocean
SNE Mascarene Plateau, W Indian Ocean. Added to Thesaurus in 1993.
ODP Site 707  search
BTOcean Drilling Program
 .Leg 115
 ..ODP Site 707
RTIndian Ocean
 DSDP Site 237
SNNW Mascarene Plateau, W Indian Ocean. Near DSDP Site 237. Added to Thesaurus in 1993.
ODP Site 708  search
BTOcean Drilling Program
 .Leg 115
 ..ODP Site 708
RTIndian Ocean
SNAbyssal plain, W Equatorial Indian Ocean. Added to Thesaurus in 1993.
ODP Site 709  search
BTOcean Drilling Program
 .Leg 115
 ..ODP Site 709
RTIndian Ocean
SNN central Madingley Rise, W Indian Ocean. Added to Thesaurus in 1993.
ODP Site 710  search
BTOcean Drilling Program
 .Leg 115
 ..ODP Site 710
RTIndian Ocean
SNCentral Madingley Rise, W equatorial Indian Ocean. Added to Thesaurus in 1993.
ODP Site 711  search
BTOcean Drilling Program
 .Leg 115
 ..ODP Site 711
RTIndian Ocean
SNN Madingley Rise, W equatorial Indian Ocean. Added to Thesaurus in 1993.
ODP Site 712  search
BTOcean Drilling Program
 .Leg 115
 ..ODP Site 712
RTIndian Ocean
SNN margin Chagos Bank, central equatorial Indian Ocean. Added to Thesaurus in 1993.
ODP Site 713  search
BTOcean Drilling Program
 .Leg 115
 ..ODP Site 713
RTIndian Ocean
SNN margin Chagos Bank, central equatorial Indian Ocean. Added to Thesaurus in 1993.
ODP Site 714  search
BTOcean Drilling Program
 .Leg 115
 ..ODP Site 714
RTIndian Ocean
SNE Maldives Ridge, N equatorial Indian Ocean. Added to Thesaurus in 1993.
ODP Site 715  search
BTOcean Drilling Program
 .Leg 115
 ..ODP Site 715
RTIndian Ocean
SNE Maldives Ridge, N equatorial Indian Ocean. Added to Thesaurus in 1993.
ODP Site 716  search
BTOcean Drilling Program
 .Leg 115
 ..ODP Site 716
RTIndian Ocean
SNCentral Maldives Ridge, N equatorial Indian Ocean. Added to Thesaurus in 1993.
ODP Site 717  search
BTOcean Drilling Program
 .Leg 116
 ..ODP Site 717
RTBengal Fan
SNDistal end of Bengal Fan, central Indian Ocean. Added to Thesaurus in 1993.
ODP Site 718  search
BTOcean Drilling Program
 .Leg 116
 ..ODP Site 718
RTBengal Fan
SNDistal end of Bengal Fan, central Indian Ocean. Added to Thesaurus in 1993.
ODP Site 719  search
BTOcean Drilling Program
 .Leg 116
 ..ODP Site 719
RTBengal Fan
SNDistal end of Bengal Fan, central Indian Ocean. Added to Thesaurus in 1993.
ODP Site 720  search
BTOcean Drilling Program
 .Leg 117
 ..ODP Site 720
RTArabian Sea
 Indus Fan
SNMid Indus Fan, Arabian Sea. Added to Thesaurus in 1993.
ODP Site 721  search
BTOcean Drilling Program
 .Leg 117
 ..ODP Site 721
RTArabian Sea
SNOwen Ridge, W Arabian Sea. Added to Thesaurus in 1993.
ODP Site 722  search
BTOcean Drilling Program
 .Leg 117
 ..ODP Site 722
RTArabian Sea
SNOwen Ridge, W Arabian Sea. Added to Thesaurus in 1993.
ODP Site 723  search
BTOcean Drilling Program
 .Leg 117
 ..ODP Site 723
RTArabian Sea
SNContinental margin near Oman, Arabian Sea. Added to Thesaurus in 1993.
ODP Site 724  search
BTOcean Drilling Program
 .Leg 117
 ..ODP Site 724
RTArabian Sea
SNContinental margin near Oman, Arabian Sea. Added to Thesaurus in 1993.
ODP Site 725  search
BTOcean Drilling Program
 .Leg 117
 ..ODP Site 725
RTArabian Sea
SNContinental margin near Oman, Arabian Sea. Added to Thesaurus in 1993.
ODP Site 726  search
BTOcean Drilling Program
 .Leg 117
 ..ODP Site 726
RTArabian Sea
SNContinental margin near Oman, Arabian Sea. Added to Thesaurus in 1993.
ODP Site 727  search
BTOcean Drilling Program
 .Leg 117
 ..ODP Site 727
RTArabian Sea
SNContinental margin near Oman, Arabian Sea. Added to Thesaurus in 1993.
ODP Site 728  search
BTOcean Drilling Program
 .Leg 117
 ..ODP Site 728
RTArabian Sea
SNContinental margin near Oman, Arabian Sea. Added to Thesaurus in 1993.
ODP Site 729  search
BTOcean Drilling Program
 .Leg 117
 ..ODP Site 729
RTArabian Sea
SNContinental margin near Oman, Arabian Sea. Added to Thesaurus in 1993.
ODP Site 730  search
BTOcean Drilling Program
 .Leg 117
 ..ODP Site 730
RTArabian Sea
SNContinental margin near Oman, Arabian Sea. Added to Thesaurus in 1993.
ODP Site 731  search
BTOcean Drilling Program
 .Leg 117
 ..ODP Site 731
RTArabian Sea
SNOwen Ridge, W Arabian Sea. Added to Thesaurus in 1993.
ODP Site 732  search
BTOcean Drilling Program
 .Leg 118
 ..ODP Site 732
RTAtlantis II fracture zone
 Southwest Indian Ridge
SNRidge at Atlantis II fracture zone, Southwest Indian Ridge, Indian Ocean. Added to Thesaurus in 1993.
ODP Site 733  search
BTOcean Drilling Program
 .Leg 118
 ..ODP Site 733
RTAtlantis II fracture zone
 Southwest Indian Ridge
SNAtlantis II fracture zone, Southwest Indian Ridge, Indian Ocean. Added to Thesaurus in 1993.
ODP Site 734  search
BTOcean Drilling Program
 .Leg 118
 ..ODP Site 734
RTAtlantis II fracture zone
 Southwest Indian Ridge
SNAtlantis II fracture zone, Southwest Indian Ridge, Indian Ocean. Added to Thesaurus in 1993.
ODP Site 735  search
BTOcean Drilling Program
 .Leg 118
 ..ODP Site 735
BTOcean Drilling Program
 .Leg 176
 ..ODP Site 735
RTAtlantis II fracture zone
 Southwest Indian Ridge
SNAtlantis II fracture zone, Southwest Indian Ridge, Indian Ocean. Hole B was reentered on Leg 176. This term has multiple hierarchies. Added to Thesaurus in 1993.
ODP Site 736  search
BTOcean Drilling Program
 .Leg 119
 ..ODP Site 736
RTIndian Ocean
 Kerguelen Plateau
SNN Kerguelen Plateau, S Indian Ocean. Added to Thesaurus in 1993.
ODP Site 737  search
BTOcean Drilling Program
 .Leg 119
 ..ODP Site 737
RTIndian Ocean
 Kerguelen Plateau
SNN Kerguelen Plateau, S Indian Ocean. Added to Thesaurus in 1993.
ODP Site 738  search
BTOcean Drilling Program
 .Leg 119
 ..ODP Site 738
RTAntarctic Ocean
 Kerguelen Plateau
SNS Kerguelen Plateau, N Antarctic Ocean. Added to Thesaurus in 1993.
ODP Site 739  search
BTOcean Drilling Program
 .Leg 119
 ..ODP Site 739
RTPrydz Bay
SNAntarctic shelf, Prydz Bay, Antarctic Ocean. Added to Thesaurus in 1993.
ODP Site 740  search
BTOcean Drilling Program
 .Leg 119
 ..ODP Site 740
RTPrydz Bay
SNInner Prydz Bay, E Antarctica. Added to Thesaurus in 1995.
ODP Site 741  search
BTOcean Drilling Program
 .Leg 119
 ..ODP Site 741
RTPrydz Bay
SNAntarctic shelf, Prydz Bay, Antarctic Ocean. Added to Thesaurus in 1993.
ODP Site 742  search
BTOcean Drilling Program
 .Leg 119
 ..ODP Site 742
RTPrydz Bay
SNPrydz Bay, E Antarctic Ocean. Added to Thesaurus in 1995.
ODP Site 743  search
BTOcean Drilling Program
 .Leg 119
 ..ODP Site 743
RTPrydz Bay
SNAntarctic slope, Prydz Bay, Antarctic Ocean. Added to Thesaurus in 1993.
ODP Site 744  search
BTOcean Drilling Program
 .Leg 119
 ..ODP Site 744
RTAntarctic Ocean
 Kerguelen Plateau
SNS Kerguelen Plateau, Antarctic Ocean. Added to Thesaurus in 1993.
ODP Site 745  search
BTOcean Drilling Program
 .Leg 119
 ..ODP Site 745
RTAntarctic Ocean
 Kerguelen Plateau
SNSE slope, Kerguelen Plateau, Antarctic Ocean. Added to Thesaurus in 1993.
ODP Site 746  search
BTOcean Drilling Program
 .Leg 119
 ..ODP Site 746
RTAntarctic Ocean
 Kerguelen Plateau
SNSE slope Kerguelen Plateau, Antarctic Ocean. Added to Thesaurus in 1993.
ODP Site 747  search
BTOcean Drilling Program
 .Leg 120
 ..ODP Site 747
RTIndian Ocean
 Kerguelen Plateau
SNCentral Kerguelen Plateau, S Indian Ocean. Added to Thesaurus in 1993.
ODP Site 748  search
BTOcean Drilling Program
 .Leg 120
 ..ODP Site 748
RTAntarctic Ocean
 Kerguelen Plateau
SNW Raggatt Basin, S Kerguelen Plateau, Antarctic Ocean. Added to Thesaurus in 1993.
ODP Site 749  search
BTOcean Drilling Program
 .Leg 120
 ..ODP Site 749
RTAntarctic Ocean
 Kerguelen Plateau
SNW flank of Banzare Bank, S Kerguelen Plateau, Antarctic Ocean. Added to Thesaurus in 1993.
ODP Site 750  search
BTOcean Drilling Program
 .Leg 120
 ..ODP Site 750
RTAntarctic Ocean
 Kerguelen Plateau
SNE Raggatt Basin, S Kerguelen Plateau, Antarctic Ocean. Added to Thesaurus in 1993.
ODP Site 751  search
BTOcean Drilling Program
 .Leg 120
 ..ODP Site 751
RTAntarctic Ocean
 Kerguelen Plateau
SNCentral Raggatt Basin, S Kerguelen Plateau, Antarctic Ocean. Added to Thesaurus in 1993.
ODP Site 752  search
BTOcean Drilling Program
 .Leg 121
 ..ODP Site 752
RTIndian Ocean
 Broken Ridge
SNBroken Ridge, central Indian Ocean. Added to Thesaurus in 1993.
ODP Site 753  search
BTOcean Drilling Program
 .Leg 121
 ..ODP Site 753
RTIndian Ocean
 Broken Ridge
SNBroken Ridge, central Indian Ocean. Added to Thesaurus in 1993.
ODP Site 754  search
BTOcean Drilling Program
 .Leg 121
 ..ODP Site 754
RTIndian Ocean
 Broken Ridge
SNBroken Ridge, central Indian Ocean. Added to Thesaurus in 1993.
ODP Site 755  search
BTOcean Drilling Program
 .Leg 121
 ..ODP Site 755
RTIndian Ocean
 Broken Ridge
SNBroken Ridge, central Indian Ocean. Added to Thesaurus in 1993.
ODP Site 756  search
BTOcean Drilling Program
 .Leg 121
 ..ODP Site 756
RTNinetyeast Ridge
SNNinetyeast Ridge, E Indian Ocean. Added to Thesaurus in 1993.
ODP Site 757  search
BTOcean Drilling Program
 .Leg 121
 ..ODP Site 757
RTNinetyeast Ridge
SNNinetyeast Ridge, E Indian Ocean. Added to Thesaurus in 1993.
ODP Site 758  search
BTOcean Drilling Program
 .Leg 121
 ..ODP Site 758
RTNinetyeast Ridge
SNNinetyeast Ridge, E Indian Ocean. Added to Thesaurus in 1993.
ODP Site 759  search
BTOcean Drilling Program
 .Leg 122
 ..ODP Site 759
RTExmouth Plateau
SNNE Exmouth Plateau, E Indian Ocean. Added to Thesaurus in 1993.
ODP Site 760  search
BTOcean Drilling Program
 .Leg 122
 ..ODP Site 760
RTWombat Plateau
SNSE Wombat Plateau, E Indian Ocean. Added to Thesaurus in 1993.
ODP Site 761  search
BTOcean Drilling Program
 .Leg 122
 ..ODP Site 761
RTWombat Plateau
SNCentral Wombat Plateau, E Indian Ocean. Added to Thesaurus in 1993.
ODP Site 762  search
BTOcean Drilling Program
 .Leg 122
 ..ODP Site 762
RTExmouth Plateau
SNW central Exmouth Plateau, E Indian Ocean. Added to Thesaurus in 1993.
ODP Site 763  search
BTOcean Drilling Program
 .Leg 122
 ..ODP Site 763
RTExmouth Plateau
SNWest-central Exmouth Plateau, E Indian Ocean. Added to Thesaurus in 1995.
ODP Site 764  search
BTOcean Drilling Program
 .Leg 122
 ..ODP Site 764
RTIndian Ocean
 Wombat Plateau
SNNE Wombat Plateau, E Indian Ocean. Added to Thesaurus in 1993.
ODP Site 765  search
BTOcean Drilling Program
 .Leg 123
 ..ODP Site 765
RTArgo abyssal plain
SNArgo abyssal plain, E Indian Ocean. Added to Thesaurus in 1993.
ODP Site 766  search
BTOcean Drilling Program
 .Leg 123
 ..ODP Site 766
RTGascoyne abyssal plain
SNGascoyne abyssal plain, E Indian Ocean. Added to Thesaurus in 1993.
ODP Site 767  search
BTOcean Drilling Program
 .Leg 124
 ..ODP Site 767
RTEquatorial Pacific
 Celebes Sea
SNCelebes Sea, NW Equatorial Pacific. Added to Thesaurus in 1993.
ODP Site 768  search
BTOcean Drilling Program
 .Leg 124
 ..ODP Site 768
RTSulu Sea
SNCagayan Ridge, Sulu Sea, NW Pacific. Added to Thesaurus in 1993.
ODP Site 769  search
BTOcean Drilling Program
 .Leg 124
 ..ODP Site 769
RTSulu Sea
SNCagayan Ridge, Sulu Sea, NW Pacific. Added to Thesaurus in 1993.
ODP Site 770  search
BTOcean Drilling Program
 .Leg 124
 ..ODP Site 770
RTEquatorial Pacific
 Celebes Sea
SNCelebes Sea, NW Equatorial Pacific. Added to Thesaurus in 1993.
ODP Site 771  search
BTOcean Drilling Program
 .Leg 124
 ..ODP Site 771
RTSulu Sea
SNCagayan Ridge, Sulu Sea, NW Pacific. Added to Thesaurus in 1993.
ODP Site 772  search
BTOcean Drilling Program
 .Leg 124E
 ..ODP Site 772
RTSouth China Sea
SNSouth China Sea, mouth of Lingayen Gulf off W coast of Luzon, Philippine Islands.
ODP Site 773  search
BTOcean Drilling Program
 .Leg 124E
 ..ODP Site 773
RTNorthwest Pacific
SNIn Luzon Strait between Taiwan and Luzon, Philippines.
ODP Site 774  search
BTOcean Drilling Program
 .Leg 124E
 ..ODP Site 774
RTNorthwest Pacific
SNIn Luzon Strait between Taiwan and Luzon, Philippine Islands.
ODP Site 775  search
BTOcean Drilling Program
 .Leg 124E
 ..ODP Site 775
RTNorthwest Pacific
SNIn Luzon Strait between Taiwan and Luzon, Philippine Islands.
ODP Site 776  search
BTOcean Drilling Program
 .Leg 124E
 ..ODP Site 776
RTMariana Trough
SNW Mariana Trough, NW Pacific. Added to Thesaurus in 1993.
ODP Site 777  search
BTOcean Drilling Program
 .Leg 124E
 ..ODP Site 777
RTNorthwest Pacific
 Leg 60
SNNorthern Mariana Islands, East of Mariana Trench. Coincides with DSDP Site 452.
ODP Site 778  search
BTOcean Drilling Program
 .Leg 125
 ..ODP Site 778
RTNorthwest Pacific
SNMariana forearc, NW Pacific. Added to Thesaurus in 1993.
ODP Site 779  search
BTOcean Drilling Program
 .Leg 125
 ..ODP Site 779
RTNorthwest Pacific
SNMariana forearc, NW Pacific. Added to Thesaurus in 1993.
ODP Site 780  search
BTOcean Drilling Program
 .Leg 125
 ..ODP Site 780
RTNorthwest Pacific
SNMariana forearc, NW Pacific. Added to Thesaurus in 1993.
ODP Site 781  search
BTOcean Drilling Program
 .Leg 125
 ..ODP Site 781
RTNorthwest Pacific
SNMariana forearc, NW Pacific. Added to Thesaurus in 1993.
ODP Site 782  search
BTOcean Drilling Program
 .Leg 125
 ..ODP Site 782
RTNorthwest Pacific
SNIzu-Bonin forearc, NW Pacific. Added to Thesaurus in 1993.
ODP Site 783  search
BTOcean Drilling Program
 .Leg 125
 ..ODP Site 783
RTIzu-Bonin Arc
SNIzu-Bonin forearc, NW Pacific. Added to Thesaurus in 1993.
ODP Site 784  search
BTOcean Drilling Program
 .Leg 125
 ..ODP Site 784
RTNorthwest Pacific
 Izu-Bonin Arc
SNIzu-Bonin Trench, NW Pacific.
ODP Site 785  search
BTOcean Drilling Program
 .Leg 125
 ..ODP Site 785
RTNorthwest Pacific
SNIzu-Bonin forearc, NW Pacific. Added to Thesaurus in 1993.
ODP Site 786  search
BTOcean Drilling Program
 .Leg 125
 ..ODP Site 786
RTNorthwest Pacific
 Izu-Bonin Arc
SNIzu-Bonin forearc basin, central NW Pacific. Added to Thesaurus in 1995.
ODP Site 787  search
BTOcean Drilling Program
 .Leg 126
 ..ODP Site 787
RTPhilippine Sea
SNNW of Izu-Bonin Trench, N Philippine Sea. Added to Thesaurus in 1993.
ODP Site 788  search
BTOcean Drilling Program
 .Leg 126
 ..ODP Site 788
RTPhilippine Sea
 Sumisu Rift
SNE margin of Sumisu Rift, NW Philippine Sea. Added to Thesaurus in 1993.
ODP Site 789  search
BTOcean Drilling Program
 .Leg 126
 ..ODP Site 789
RTPhilippine Sea
 Sumisu Rift
SNE margin of Sumisu Rift, NW Philippine Sea. Added to Thesaurus in 1993.
ODP Site 790  search
BTOcean Drilling Program
 .Leg 126
 ..ODP Site 790
RTPhilippine Sea
 Sumisu Rift
SNSumisu Rift, NW Philippine Sea. Added to Thesaurus in 1993.
ODP Site 791  search
BTOcean Drilling Program
 .Leg 126
 ..ODP Site 791
RTPhilippine Sea
 Sumisu Rift
SNSumisu Rift, NW Philippine Sea. Added to Thesaurus in 1993.
ODP Site 792  search
BTOcean Drilling Program
 .Leg 126
 ..ODP Site 792
RTPhilippine Sea
SNW Izu-Bonin forearc basin, W of Izu-Bonin Trench, NW Philippine Sea. Added to Thesaurus in 1993.
ODP Site 793  search
BTOcean Drilling Program
 .Leg 126
 ..ODP Site 793
RTPhilippine Sea
SNW of Izu-Bonin Trench, NW Philippine Sea. Added to Thesaurus in 1993.
ODP Site 794  search
BTOcean Drilling Program
 .Leg 127
 ..ODP Site 794
BTOcean Drilling Program
 .Leg 128
 ..ODP Site 794
RTJapan Sea
 Yamato Basin
SNNE Yamato Basin, E Japan Sea. Drilled on Legs 127 and 128. Hole 794 C was reentered on Leg 128. This term has multiple hierarchies. Added to Thesaurus in 1993.
ODP Site 795  search
BTOcean Drilling Program
 .Leg 127
 ..ODP Site 795
RTJapan Sea
SNNE Japan Sea, NW Pacific. Added to Thesaurus in 1995.
ODP Site 796  search
BTOcean Drilling Program
 .Leg 127
 ..ODP Site 796
RTJapan Sea
SNOkushiri Ridge, E Japan Sea. Added to Thesaurus in 1993.
ODP Site 797  search
BTOcean Drilling Program
 .Leg 127
 ..ODP Site 797
RTJapan Sea
 Yamato Basin
SNSW Yamato Basin, S central Japan Sea. Added to Thesaurus in 1993.
ODP Site 798  search
BTOcean Drilling Program
 .Leg 128
 ..ODP Site 798
RTJapan Sea
 Oki Ridge
SNOki Ridge, SE Japan Sea. Added to Thesaurus in 1993.
ODP Site 799  search
BTOcean Drilling Program
 .Leg 128
 ..ODP Site 799
RTJapan Sea
 Yamato Rise
SNKita-Yamato Trough, Yamato Rise, S central Japan Sea. Added to Thesaurus in 1993.
ODP Site 800  search
BTOcean Drilling Program
 .Leg 129
 ..ODP Site 800
RTPigafetta Basin
SNN Pigafetta Basin, central NW Pacific. Added to Thesaurus in 1993.
ODP Site 801  search
BTOcean Drilling Program
 .Leg 129
 ..ODP Site 801
BTOcean Drilling Program
 .Leg 144
 ..ODP Site 801
RTPigafetta Basin
SNCentral Pigafetta Basin, central NW Pacific. This term has multiple hierarchies. Added to Thesaurus in 1993.
ODP Site 802  search
BTOcean Drilling Program
 .Leg 129
 ..ODP Site 802
RTMariana Trough
SNCentral East Mariana Trough, central W Pacific. Added to Thesaurus in 1993.
ODP Site 803  search
BTOcean Drilling Program
 .Leg 130
 ..ODP Site 803
RTNorthwest Pacific
 Equatorial Pacific
 Ontong Java Plateau
SNOntong Java Plateau, W Equatorial Pacific. Added to Thesaurus in 1993.
ODP Site 804  search
BTOcean Drilling Program
 .Leg 130
 ..ODP Site 804
RTNorthwest Pacific
 Equatorial Pacific
 Ontong Java Plateau
SNOntong Java Plateau, NW Equatorial Pacific. Added to Thesaurus in 1993.
ODP Site 805  search
BTOcean Drilling Program
 .Leg 130
 ..ODP Site 805
RTNorthwest Pacific
 Equatorial Pacific
 Ontong Java Plateau
SNOntong Java Plateau, NW Equatorial Pacific. Added to Thesaurus in 1993.
ODP Site 806  search
BTOcean Drilling Program
 .Leg 130
 ..ODP Site 806
RTNorthwest Pacific
 Equatorial Pacific
 Ontong Java Plateau
SNOntong Java Plateau, NW Equatorial Pacific. Added to Thesaurus in 1993.
ODP Site 807  search
BTOcean Drilling Program
 .Leg 130
 ..ODP Site 807
RTNorthwest Pacific
 Equatorial Pacific
 Ontong Java Plateau
SNOntong Java Plateau, NW Equatorial Pacific. Added to Thesaurus in 1993.
ODP Site 808  search
BTOcean Drilling Program
 .Leg 131
 ..ODP Site 808
BTOcean Drilling Program
 .Leg 132
 ..ODP Site 808
RTNorthwest Pacific
SNNankai accretionary prism, SE of Shikoku, Japan, NW Pacific. Revisited on Leg 132, Site 808E was redrilled. This term has multiple hierarchies. Added to Thesaurus in 1993.
ODP Site 809  search
BTOcean Drilling Program
 .Leg 132
 ..ODP Site 809
RTPhilippine Sea
 Sumisu Rift
SNSumisu Rift, NW Philippine Sea. Added to Thesaurus in 1993.
ODP Site 810  search
BTOcean Drilling Program
 .Leg 132
 ..ODP Site 810
RTShatsky Rise
SNShatsky Rise, NW Pacific. Added to Thesaurus in 1995.
ODP Site 811  search
BTOcean Drilling Program
 .Leg 133
 ..ODP Site 811
UFODP Site 825
RTCoral Sea
 Queensland Plateau
SNW margin, Queensland Plateau, Coral Sea. This site was repeated on this Leg as ODP Site 825. Also search ODP Site 811/825. Added to Thesaurus in 1995.
ODP Site 812  search
BTOcean Drilling Program
 .Leg 133
 ..ODP Site 812
RTCoral Sea
 Queensland Plateau
SNQueensland Plateau, W Coral Sea. Added to Thesaurus in 1995.
ODP Site 813  search
BTOcean Drilling Program
 .Leg 133
 ..ODP Site 813
RTCoral Sea
 Queensland Plateau
SNQueensland Plateau, Coral Sea. Added to Thesaurus in 1995.
ODP Site 814  search
BTOcean Drilling Program
 .Leg 133
 ..ODP Site 814
RTCoral Sea
 Queensland Plateau
SNQueensland Plateau, Coral Sea. Added to Thesaurus in 1995.
ODP Site 815  search
BTOcean Drilling Program
 .Leg 133
 ..ODP Site 815
RTCoral Sea
SNTownsville Trough, W Coral Sea. Added to Thesaurus in 1995.
ODP Site 816  search
BTOcean Drilling Program
 .Leg 133
 ..ODP Site 816
RTCoral Sea
SNNW Marion Plateau, W Coral Sea. Added to Thesaurus in 1995.
ODP Site 817  search
BTOcean Drilling Program
 .Leg 133
 ..ODP Site 817
RTCoral Sea
 Queensland Plateau
SNN Townsville Trough, Queensland Plateau slope, W Coral Sea. Added to Thesaurus in 1995.
ODP Site 818  search
BTOcean Drilling Program
 .Leg 133
 ..ODP Site 818
RTCoral Sea
 Queensland Plateau
SNQueensland Plateau slope, W Coral Sea. Added to Thesaurus in 1995.
ODP Site 819  search
BTOcean Drilling Program
 .Leg 133
 ..ODP Site 819
RTCoral Sea
SNGrafton Passage, NE Australian continental slope, W Coral Sea. Added to Thesaurus in 1995.
ODP Site 820  search
BTOcean Drilling Program
 .Leg 133
 ..ODP Site 820
RTCoral Sea
SNGrafton Passage, NE Australia continental slope, W Coral Sea. Added to Thesaurus in 1995.
ODP Site 821  search
BTOcean Drilling Program
 .Leg 133
 ..ODP Site 821
RTCoral Sea
SNGrafton Passage, NE Australia continental slope, W Coral Sea. Added to Thesaurus in 1995.
ODP Site 822  search
BTOcean Drilling Program
 .Leg 133
 ..ODP Site 822
RTCoral Sea
SNNE Australia continental slope, W Coral Sea. Added to Thesaurus in 1995.
ODP Site 823  search
BTOcean Drilling Program
 .Leg 133
 ..ODP Site 823
RTCoral Sea
SNCentral western Queensland Trough, W Coral Sea. Added to Thesaurus in 1995.
ODP Site 824  search
BTOcean Drilling Program
 .Leg 133
 ..ODP Site 824
RTCoral Sea
 Queensland Plateau
SNW slope Queensland Plateau, W Coral Sea. Added to Thesaurus in 1995.
ODP Site 825  search
USEODP Site 811
ODP Site 826  search
BTOcean Drilling Program
 .Leg 133
 ..ODP Site 826
RTCoral Sea
SNNW margin Marion Plateau, W Coral Sea. Added to Thesaurus in 1995.
ODP Site 827  search
BTOcean Drilling Program
 .Leg 134
 ..ODP Site 827
RTSouthwest Pacific
 Vanuatu
SNNorth d'Entrecasteaux Ridge, SW Pacific. Added to Thesaurus in 1995.
ODP Site 828  search
BTOcean Drilling Program
 .Leg 134
 ..ODP Site 828
RTSouthwest Pacific
 Vanuatu
SNNorth d'Entrecasteaux Ridge, SW Pacific. Added to Thesaurus in 1995.
ODP Site 829  search
BTOcean Drilling Program
 .Leg 134
 ..ODP Site 829
RTSouthwest Pacific
 Vanuatu
SNNorth d'Entrecasteaux Ridge, SW Pacific. Added to Thesaurus in 1995.
ODP Site 830  search
BTOcean Drilling Program
 .Leg 134
 ..ODP Site 830
RTSouthwest Pacific
 Vanuatu
SND'Entrecasteaux Zone, SW Pacific. Added to Thesaurus in 1995.
ODP Site 831  search
BTOcean Drilling Program
 .Leg 134
 ..ODP Site 831
RTSouthwest Pacific
 Vanuatu
SND'Entrecasteaux Zone, SW Pacific. Added to Thesaurus in 1995.
ODP Site 832  search
BTOcean Drilling Program
 .Leg 134
 ..ODP Site 832
RTSouthwest Pacific
 Vanuatu
SNNorth Aoba Basin, Vanuatu, SW Pacific. Added to Thesaurus in 1995.
ODP Site 833  search
BTOcean Drilling Program
 .Leg 134
 ..ODP Site 833
RTSouthwest Pacific
 Vanuatu
SNNorth Aoba Basin, Vanuatu, SW Pacific. Added to Thesaurus in 1995.
ODP Site 834  search
BTOcean Drilling Program
 .Leg 135
 ..ODP Site 834
RTLau Basin
SNW Lau Basin, SE Pacific. Added to Thesaurus in 1995.
ODP Site 835  search
BTOcean Drilling Program
 .Leg 135
 ..ODP Site 835
RTLau Basin
SNW central Lau Basin, SE Pacific. Added to Thesaurus in 1995.
ODP Site 836  search
BTOcean Drilling Program
 .Leg 135
 ..ODP Site 836
RTLau Basin
SNW Lau Basin, SE Pacific. Added to Thesaurus in 1995.
ODP Site 837  search
BTOcean Drilling Program
 .Leg 135
 ..ODP Site 837
RTLau Basin
SNCentral Lau Basin, SE Pacific. Added to Thesaurus in 1995.
ODP Site 838  search
BTOcean Drilling Program
 .Leg 135
 ..ODP Site 838
RTLau Basin
SNCentral Lau Basin, SE Pacific. Added to Thesaurus in 1995.
ODP Site 839  search
BTOcean Drilling Program
 .Leg 135
 ..ODP Site 839
RTLau Basin
SNCentral Lau Basin, SE Pacific. Added to Thesaurus in 1995.
ODP Site 840  search
BTOcean Drilling Program
 .Leg 135
 ..ODP Site 840
RTSouthwest Pacific
SNTonga Ridge, SW Pacific. Added to Thesaurus in 1995.
ODP Site 841  search
BTOcean Drilling Program
 .Leg 135
 ..ODP Site 841
RTSoutheast Pacific
SNSlope of Tonga Ridge, SE Pacific. Added to Thesaurus in 1995.
ODP Site 842  search
BTOcean Drilling Program
 .Leg 136
 ..ODP Site 842
RTNortheast Pacific
SN250 kilometers SW of Oahu, Hawaii, N central Pacific. Added to Thesaurus in 1995.
ODP Site 843  search
BTOcean Drilling Program
 .Leg 136
 ..ODP Site 843
RTNortheast Pacific
SN250 kilometers SW of Oahu, Hawaii, N central Pacific. Added to Thesaurus in 1995.
ODP Site 844  search
BTOcean Drilling Program
 .Leg 138
 ..ODP Site 844
RTEquatorial Pacific
 Guatemala Basin
SNGuatemala Basin, E Equatorial Pacific. Added to Thesaurus in 1995.
ODP Site 845  search
BTOcean Drilling Program
 .Leg 138
 ..ODP Site 845
RTEquatorial Pacific
 Guatemala Basin
SNGuatemala Basin, E Equatorial Pacific. Added to Thesaurus in 1995.
ODP Site 846  search
BTOcean Drilling Program
 .Leg 138
 ..ODP Site 846
RTSoutheast Pacific
 Equatorial Pacific
SNSouth of Galapagos Islands, E Equatorial Pacific. Added to Thesaurus in 1995.
ODP Site 847  search
BTOcean Drilling Program
 .Leg 138
 ..ODP Site 847
RTNortheast Pacific
 Equatorial Pacific
SNWest of Galapagos Islands, E Equatorial Pacific. Added to Thesaurus in 1995.
ODP Site 848  search
BTOcean Drilling Program
 .Leg 138
 ..ODP Site 848
RTSoutheast Pacific
 Equatorial Pacific
SNNortheast Pacific Basin near East Pacific Rise, E Equatorial Pacific. Added to Thesaurus in 1995.
ODP Site 849  search
BTOcean Drilling Program
 .Leg 138
 ..ODP Site 849
RTNortheast Pacific
 Equatorial Pacific
SNNortheast Pacific Basin near East Pacific Rise, E Equatorial Pacific. Added to Thesaurus in 1995.
ODP Site 850  search
BTOcean Drilling Program
 .Leg 138
 ..ODP Site 850
RTNortheast Pacific
 Equatorial Pacific
SNNortheast Pacific Basin near East Pacific Rise, E Equatorial Pacific. Added to Thesaurus in 1995.
ODP Site 851  search
BTOcean Drilling Program
 .Leg 138
 ..ODP Site 851
RTNortheast Pacific
 Equatorial Pacific
SNNortheast Pacific Basin near East Pacific Rise, E Equatorial Pacific. Added to Thesaurus in 1995.
ODP Site 852  search
BTOcean Drilling Program
 .Leg 138
 ..ODP Site 852
RTNortheast Pacific
 Equatorial Pacific
SNNortheast Pacific Basin near East Pacific Rise, NE Equatorial Pacific. Added to Thesaurus in 1995.
ODP Site 853  search
BTOcean Drilling Program
 .Leg 138
 ..ODP Site 853
RTNortheast Pacific
 Equatorial Pacific
SNNortheast Pacific Basin near East Pacific Rise, E Equatorial Pacific. Added to Thesaurus in 1995.
ODP Site 854  search
BTOcean Drilling Program
 .Leg 138
 ..ODP Site 854
RTNortheast Pacific
 Equatorial Pacific
SNNortheast Pacific Basin near East Pacific Rise, E Equatorial Pacific. Added to Thesaurus in 1995.
ODP Site 855  search
BTOcean Drilling Program
 .Leg 139
 ..ODP Site 855
RTJuan de Fuca Ridge
SNE Middle Valley Rift, Juan de Fuca Ridge, NE Pacific. Added to Thesaurus in 1995.
ODP Site 856  search
BTOcean Drilling Program
 .Leg 169
 ..ODP Site 856
BTOcean Drilling Program
 .Leg 139
 ..ODP Site 856
RTJuan de Fuca Ridge
 ODP Site 1035
SNE Middle Valley Rift, Juan de Fuca Ridge, NE Pacific. This term has multiple hierarchies. Added to Thesaurus in 1995.
ODP Site 857  search
BTOcean Drilling Program
 .Leg 146
 ..ODP Site 857
BTOcean Drilling Program
 .Leg 139
 ..ODP Site 857
RTJuan de Fuca Ridge
SNE Middle Valley Rift, Juan de Fuca Ridge, NE Pacific. This term has multiple hierarchies. Added to Thesaurus in 1995.
ODP Site 858  search
BTOcean Drilling Program
 .Leg 169
 ..ODP Site 858
BTOcean Drilling Program
 .Leg 139
 ..ODP Site 858
RTJuan de Fuca Ridge
 ODP Site 1036
SNHydrothermal vent field, Middle Valley Rift, Juan de Fuca Ridge, NE Pacific. This term has multiple hierarchies. Added to Thesaurus in 1995.
ODP Site 859  search
BTOcean Drilling Program
 .Leg 141
 ..ODP Site 859
RTChile Margin Triple Junction
 Southeast Pacific
 Peru-Chile Trench
SNChile Margin Triple Junction, SE Pacific. Added to Thesaurus in 1995.
ODP Site 860  search
BTOcean Drilling Program
 .Leg 141
 ..ODP Site 860
RTChile Margin Triple Junction
 Southeast Pacific
 Peru-Chile Trench
SNChile Margin Triple Junction, SE Pacific. Added to Thesaurus in 1995.
ODP Site 861  search
BTOcean Drilling Program
 .Leg 141
 ..ODP Site 861
RTChile Margin Triple Junction
 Southeast Pacific
 Peru-Chile Trench
SNChile Margin Triple Junction, SE Pacific. Added to Thesaurus in 1995.
ODP Site 862  search
BTOcean Drilling Program
 .Leg 141
 ..ODP Site 862
RTChile Margin Triple Junction
 Southeast Pacific
SNTaito Ridge, Chile Margin Triple Junction area, SE Pacific. Added to Thesaurus in 1995.
ODP Site 863  search
BTOcean Drilling Program
 .Leg 141
 ..ODP Site 863
RTChile Margin Triple Junction
 Southeast Pacific
 Peru-Chile Trench
SNChile Margin Triple Junction area, SE Pacific. Added to Thesaurus in 1995.
ODP Site 864  search
BTOcean Drilling Program
 .Leg 142
 ..ODP Site 864
RTNortheast Pacific
 Equatorial Pacific
 East Pacific Rise
SNEast Pacific Rise, E Equatorial Pacific.
ODP Site 865  search
BTOcean Drilling Program
 .Leg 143
 ..ODP Site 865
RTNortheast Pacific
 Mid-Pacific Mountains
SNAllison Guyot, W Mid-Pacific Mountains, N central Pacific. Added to Thesaurus in 1995.
ODP Site 866  search
BTOcean Drilling Program
 .Leg 143
 ..ODP Site 866
RTNorthwest Pacific
 Resolution Seamount
 Mid-Pacific Mountains
SNResolution Seamount, W Mid-Pacific Mountains, N central Pacific. Added to Thesaurus in 1995.
ODP Site 867  search
BTOcean Drilling Program
 .Leg 143
 ..ODP Site 867
RTNorthwest Pacific
 Resolution Seamount
 Mid-Pacific Mountains
SNResolution Seamount, W Mid-Pacific Mountains, N central Pacific. Added to Thesaurus in 1995.
ODP Site 868  search
BTOcean Drilling Program
 .Leg 143
 ..ODP Site 868
RTNorthwest Pacific
 Resolution Seamount
 Mid-Pacific Mountains
SNResolution Seamount, W Mid-Pacific Mountains, N central Pacific. Added to Thesaurus in 1995.
ODP Site 869  search
BTOcean Drilling Program
 .Leg 143
 ..ODP Site 869
RTNorthwest Pacific
SNSW of Bikini Atoll, Marshall Islands region, W central Pacific. Added to Thesaurus in 1995.
ODP Site 870  search
BTOcean Drilling Program
 .Leg 143
 ..ODP Site 870
RTNorthwest Pacific
 Enewetak Atoll
SNEnewetak Atoll, Marshall Islands region, W central Pacific.
ODP Site 871  search
BTOcean Drilling Program
 .Leg 144
 ..ODP Site 871
RTPacific Ocean
 Marshall Islands
SNLimalok (Harrie) Seamount, southern Marshall Islands, west-central Pacific.
ODP Site 872  search
BTOcean Drilling Program
 .Leg 144
 ..ODP Site 872
RTPacific Ocean
 Marshall Islands
SNLo-En Seamount, Marshall Islands, west-central Pacific.
ODP Site 873  search
BTOcean Drilling Program
 .Leg 144
 ..ODP Site 873
RTPacific Ocean
 Marshall Islands
 Wodejebato Seamount
SNWodejebato Seamount, Marshall Islands, west-central Pacific.
ODP Site 874  search
BTOcean Drilling Program
 .Leg 144
 ..ODP Site 874
RTPacific Ocean
 Marshall Islands
 Wodejebato Seamount
SNWodejebato Seamount, Marshalls Islands, west-central Pacific.
ODP Site 875  search
BTOcean Drilling Program
 .Leg 144
 ..ODP Site 875
RTWodejebato Seamount
SNNE rim of Wodejebato Seamount, Marshall Islands region, west-central Pacific.
ODP Site 876  search
BTOcean Drilling Program
 .Leg 144
 ..ODP Site 876
RTWodejebato Seamount
SNNE rim of Wodejebato Seamount, Marshall Islands region, west-central Pacific.
ODP Site 877  search
BTOcean Drilling Program
 .Leg 144
 ..ODP Site 877
RTPacific Ocean
 Marshall Islands
 Wodejebato Seamount
SNWodejebato Seamount, Marshall Islands, west-central Pacific.
ODP Site 878  search
BTOcean Drilling Program
 .Leg 144
 ..ODP Site 878
RTNorthwest Pacific
SNMIT Seamount, SW of Shatsky Rise, NW Pacific.
ODP Site 879  search
BTOcean Drilling Program
 .Leg 144
 ..ODP Site 879
RTNorthwest Pacific
SNTakuyo-Daisan Seamount, E of Izu-Ogasawara Trench, NW Pacific.
ODP Site 880  search
BTOcean Drilling Program
 .Leg 144
 ..ODP Site 880
RTNorthwest Pacific
SNTakuyo-Daisan Seamount, Seiko cluster of Japanese Seamounts, NW Pacific.
ODP Site 881  search
BTOcean Drilling Program
 .Leg 145
 ..ODP Site 881
RTNorthwest Pacific
SNSW of Kamchatka, W of Emperor Seamounts, NW Pacific.
ODP Site 882  search
BTOcean Drilling Program
 .Leg 145
 ..ODP Site 882
RTNorthwest Pacific
 Emperor Seamounts
SNDetroit Seamount of N Emperor Seamounts, NW Pacific.
ODP Site 883  search
BTOcean Drilling Program
 .Leg 145
 ..ODP Site 883
RTNorthwest Pacific
 Emperor Seamounts
SNDetroit Seamount of N Emperor Seamounts, NW Pacific.
ODP Site 884  search
BTOcean Drilling Program
 .Leg 145
 ..ODP Site 884
RTNorthwest Pacific
 Emperor Seamounts
SNDetroit Seamount of N Emperor Seamounts, NW Pacific.
ODP Site 885  search
BTOcean Drilling Program
 .Leg 145
 ..ODP Site 885
RTNorth Pacific
SNE Chinook Trough, north-central Pacific.
ODP Site 886  search
BTOcean Drilling Program
 .Leg 145
 ..ODP Site 886
RTNorth Pacific
SNE Chinook Trough, north-central Pacific.
ODP Site 887  search
BTOcean Drilling Program
 .Leg 145
 ..ODP Site 887
RTNortheast Pacific
SNPatton-Murray Seamounts, NE Pacific.
ODP Site 888  search
BTOcean Drilling Program
 .Leg 146
 ..ODP Site 888
RTNortheast Pacific
 Cascadia Basin
SNCascadia margin, NE Pacific. Added to Thesaurus in 1995.
ODP Site 889  search
BTOcean Drilling Program
 .Leg 146
 ..ODP Site 889
RTNortheast Pacific
 Vancouver Island
SNMid-slope Cascadia margin, NE Pacific.
ODP Site 890  search
BTOcean Drilling Program
 .Leg 146
 ..ODP Site 890
RTNortheast Pacific
 Vancouver Island
SNMid-slope Cascadia margin, NE Pacific.
ODP Site 891  search
BTOcean Drilling Program
 .Leg 146
 ..ODP Site 891
RTNortheast Pacific
 Cascadia subduction zone
SNW ridge of Cascadia accretionary wedge, off the Oregon continental margin.
ODP Site 892  search
BTOcean Drilling Program
 .Leg 146
 ..ODP Site 892
RTNortheast Pacific
SNNear ridge crest E of the base of the Oregon continental slope.
ODP Site 893  search
BTOcean Drilling Program
 .Leg 146
 ..ODP Site 893
RTNortheast Pacific
 Santa Barbara Basin
 Leg 167
SNSanta Barbara Basin, S California continental borderland.
ODP Site 894  search
BTOcean Drilling Program
 .Leg 147
 ..ODP Site 894
RTNortheast Pacific
 Equatorial Pacific
 Hess Deep
SNRidge summit, Hess Deep, E Equatorial Pacific. Added to Thesaurus in 1995.
ODP Site 895  search
BTOcean Drilling Program
 .Leg 147
 ..ODP Site 895
RTNortheast Pacific
 Equatorial Pacific
 Hess Deep
SNRidge, Hess Deep, E Equatorial Pacific. Added to Thesaurus in 1995.
ODP Site 896  search
BTOcean Drilling Program
 .Leg 148
 ..ODP Site 896
RTEast Pacific
 Equatorial Pacific
 Panama Basin
SNS Panama Basin, E Equatorial Pacific.
ODP Site 897  search
BTOcean Drilling Program
 .Leg 149
 ..ODP Site 897
RTNortheast Atlantic
 Iberian abyssal plain
SNIberian abyssal plain-West Iberia Margin transition zone, NE Atlantic.
ODP Site 898  search
BTOcean Drilling Program
 .Leg 149
 ..ODP Site 898
RTNortheast Atlantic
 Iberian abyssal plain
SNIberian abyssal plain-West Iberia Margin transition zone, NE Atlantic.
ODP Site 899  search
BTOcean Drilling Program
 .Leg 149
 ..ODP Site 899
RTNortheast Atlantic
 Iberian abyssal plain
SNIberian abyssal plain-West Iberia Margin transition zone, NE Atlantic.
ODP Site 900  search
BTOcean Drilling Program
 .Leg 149
 ..ODP Site 900
RTNortheast Atlantic
 Iberian abyssal plain
SNIberian abyssal plain-West Iberia Margin transition zone, NE Atlantic.
ODP Site 901  search
BTOcean Drilling Program
 .Leg 149
 ..ODP Site 901
RTNortheast Atlantic
 Iberian abyssal plain
SNIberian abyssal plain-West Iberia Margin transition zone, NE Atlantic.
ODP Site 902  search
BTOcean Drilling Program
 .Leg 150
 ..ODP Site 902
RTNorthwest Atlantic
SNUpper continental slope SE of New Jersey, NW Atlantic.
ODP Site 903  search
BTOcean Drilling Program
 .Leg 150
 ..ODP Site 903
RTNorthwest Atlantic
SNUpper continental slope SE of New Jersey, NW Atlantic.
ODP Site 904  search
BTOcean Drilling Program
 .Leg 150
 ..ODP Site 904
RTNorthwest Atlantic
SNUpper continental slope SE of New Jersey, NW Atlantic.
ODP Site 905  search
BTOcean Drilling Program
 .Leg 150
 ..ODP Site 905
RTNorthwest Atlantic
SNUpper continental rise SE of New Jersey, NW Atlantic.
ODP Site 906  search
BTOcean Drilling Program
 .Leg 150
 ..ODP Site 906
RTNorthwest Atlantic
SNBerkeley Canyon, upper continental slope SE of New Jersey, NW Atlantic.
ODP Site 907  search
BTOcean Drilling Program
 .Leg 151
 ..ODP Site 907
BTOcean Drilling Program
 .Leg 162
 ..ODP Site 907
RTNorth Atlantic
 Norwegian Sea
SNIceland Plateau, N end of Denmark Strait, Norwegian Sea, N Atlantic. This term has multiple hierarchies.
ODP Site 908  search
BTOcean Drilling Program
 .Leg 151
 ..ODP Site 908
RTNorth Atlantic
 Norwegian Sea
 Fram Strait
SNHovgard Ridge, N Boreas Basin, S Fram Strait, Norwegian Sea, N Atlantic.
ODP Site 909  search
BTOcean Drilling Program
 .Leg 151
 ..ODP Site 909
RTArctic Ocean
 North Atlantic
 Norwegian Sea
 Fram Strait
SNFram Strait, Norwegian Sea-Arctic Ocean transition.
ODP Site 91  search
ODP Site 910  search
BTOcean Drilling Program
 .Leg 151
 ..ODP Site 910
RTArctic Ocean
 Yermak Plateau
SNYermak Plateau, N of Svalbard, Arctic Ocean.
ODP Site 911  search
BTOcean Drilling Program
 .Leg 151
 ..ODP Site 911
RTArctic Ocean
 Yermak Plateau
SNS Yermak Plateau, N of Svalbard, Arctic Ocean.
ODP Site 912  search
BTOcean Drilling Program
 .Leg 151
 ..ODP Site 912
RTArctic Ocean
 Yermak Plateau
SNSW Yermak Plateau, NW of Svalbard, Arctic Ocean.
ODP Site 913  search
BTOcean Drilling Program
 .Leg 151
 ..ODP Site 913
RTNorth Atlantic
 Norwegian Sea
SNGreenland Basin, N Atlantic.
ODP Site 914  search
BTOcean Drilling Program
 .Leg 152
 ..ODP Site 914
RTGreenland
 North Atlantic
SNSE Greenland outer shelf.
ODP Site 915  search
BTOcean Drilling Program
 .Leg 152
 ..ODP Site 915
RTGreenland
 North Atlantic
SNSE Greenland outer shelf.
ODP Site 916  search
BTOcean Drilling Program
 .Leg 152
 ..ODP Site 916
RTGreenland
 North Atlantic
SNSE Greenland outer shelf.
ODP Site 917  search
BTOcean Drilling Program
 .Leg 152
 ..ODP Site 917
RTGreenland
 North Atlantic
SNSE Greenland outer shelf.
ODP Site 918  search
BTOcean Drilling Program
 .Leg 152
 ..ODP Site 918
RTGreenland
 North Atlantic
SNW Irminger Basin. SE Greenland upper continental rise.
ODP Site 919  search
BTOcean Drilling Program
 .Leg 152
 ..ODP Site 919
RTGreenland
 North Atlantic
SNW Irminger Basin. SE Greenland continental rise.
ODP Site 920  search
BTOcean Drilling Program
 .Leg 153
 ..ODP Site 920
RTNorth Atlantic
 Mid-Atlantic Ridge
 Kane fracture zone
 Snakepit hydrothermal field
SNWestern median valley wall, Mid-Atlantic Ridge S of Kane Transform (MARK).
ODP Site 921  search
BTOcean Drilling Program
 .Leg 153
 ..ODP Site 921
RTNorth Atlantic
 Mid-Atlantic Ridge
 Kane fracture zone
SNWestern median valley wall, Mid-Atlantic Ridge S of Kane Transform (MARK).
ODP Site 922  search
BTOcean Drilling Program
 .Leg 153
 ..ODP Site 922
RTNorth Atlantic
 Mid-Atlantic Ridge
 Kane fracture zone
 Snakepit hydrothermal field
SNWestern median valley wall, Mid-Atlantic Ridge S of Kane Transform (MARK).
ODP Site 923  search
BTOcean Drilling Program
 .Leg 153
 ..ODP Site 923
RTNorth Atlantic
 Mid-Atlantic Ridge
 Kane fracture zone
SNWestern median valley wall, Mid-Atlantic Ridge S of Kane Transform (MARK).
ODP Site 924  search
BTOcean Drilling Program
 .Leg 153
 ..ODP Site 924
RTNorth Atlantic
 Mid-Atlantic Ridge
 Kane fracture zone
SNWestern median valley wall, Mid-Atlantic Ridge S of Kane Transform (MARK).
ODP Site 925  search
BTOcean Drilling Program
 .Leg 154
 ..ODP Site 925
RTMid-Atlantic Ridge
 Equatorial Atlantic
SNCeara Rise, off the Amazon Fan, Equatorial Atlantic.
ODP Site 926  search
BTOcean Drilling Program
 .Leg 154
 ..ODP Site 926
RTEquatorial Atlantic
SNCeara Rise, off the Amazon Fan, Equatorial Atlantic.
ODP Site 927  search
BTOcean Drilling Program
 .Leg 154
 ..ODP Site 927
RTEquatorial Atlantic
SNCeara Rise, off the Amazon Fan, Equatorial Atlantic.
ODP Site 928  search
BTOcean Drilling Program
 .Leg 154
 ..ODP Site 928
RTNorth Atlantic
 Equatorial Atlantic
SNCeara Rise, off the Amazon Fan, N Equatorial Atlantic.
ODP Site 929  search
BTOcean Drilling Program
 .Leg 154
 ..ODP Site 929
RTNorth Atlantic
 Equatorial Atlantic
SNCeara Rise, off the Amazon Fan, Equatorial Atlantic.
ODP Site 930  search
BTOcean Drilling Program
 .Leg 155
 ..ODP Site 930
RTNorth Atlantic
 Equatorial Atlantic
SNNear Amazon Channel, Amazon Fan, NW Equatorial Atlantic.
ODP Site 931  search
BTOcean Drilling Program
 .Leg 155
 ..ODP Site 931
RTEquatorial Atlantic
 Northwest Atlantic
SNE Amazon Fan, NW Equatorial Atlantic.
ODP Site 932  search
BTOcean Drilling Program
 .Leg 155
 ..ODP Site 932
RTEquatorial Atlantic
 Northwest Atlantic
SNE Amazon Fan, NW Equatorial Atlantic.
ODP Site 933  search
BTOcean Drilling Program
 .Leg 155
 ..ODP Site 933
RTEquatorial Atlantic
 Northwest Atlantic
SNE Amazon Fan, NW Equatorial Atlantic.
ODP Site 934  search
BTOcean Drilling Program
 .Leg 155
 ..ODP Site 934
RTEquatorial Atlantic
 Northwest Atlantic
SNE Amazon Fan, NW Equatorial Atlantic.
ODP Site 935  search
BTOcean Drilling Program
 .Leg 155
 ..ODP Site 935
RTNorth Atlantic
 Equatorial Atlantic
SNAmazon Fan, NW Equatorial Atlantic.
ODP Site 936  search
BTOcean Drilling Program
 .Leg 155
 ..ODP Site 936
RTNorth Atlantic
 Equatorial Atlantic
SNAmazon Channel, Amazon Fan, NW Equatorial Atlantic.
ODP Site 937  search
BTOcean Drilling Program
 .Leg 155
 ..ODP Site 937
RTNorth Atlantic
 Equatorial Atlantic
SNE Amazon Fan, NW Equatorial Atlantic.
ODP Site 938  search
BTOcean Drilling Program
 .Leg 155
 ..ODP Site 938
RTEquatorial Atlantic
 Northwest Atlantic
SNE Amazon Fan, NW Equatorial Atlantic.
ODP Site 939  search
BTOcean Drilling Program
 .Leg 155
 ..ODP Site 939
RTEquatorial Atlantic
 Northwest Atlantic
SNFlank of Amazon Channel, upper Amazon Fan, NW Equatorial Atlantic.
ODP Site 940  search
BTOcean Drilling Program
 .Leg 155
 ..ODP Site 940
RTEquatorial Atlantic
 Northwest Atlantic
SNAmazon Channel levee, Amazon Fan, NW Equatorial Atlantic.
ODP Site 941  search
BTOcean Drilling Program
 .Leg 155
 ..ODP Site 941
RTNorth Atlantic
 Equatorial Atlantic
SNW Amazon Fan, NW Equatorial Atlantic.
ODP Site 942  search
BTOcean Drilling Program
 .Leg 155
 ..ODP Site 942
RTNorth Atlantic
 Equatorial Atlantic
SNW edge of Amazon Canyons, W Equatorial Atlantic.
ODP Site 943  search
BTOcean Drilling Program
 .Leg 155
 ..ODP Site 943
RTNorth Atlantic
 Equatorial Atlantic
SNAmazon Channel, Amazon Fan, NW Equatorial Atlantic.
ODP Site 944  search
BTOcean Drilling Program
 .Leg 155
 ..ODP Site 944
RTEquatorial Atlantic
 Northwest Atlantic
SNE levee of Amazon Channel, middle Amazon Fan, NW Equatorial Atlantic.
ODP Site 945  search
BTOcean Drilling Program
 .Leg 155
 ..ODP Site 945
RTNorth Atlantic
 Equatorial Atlantic
SNAmazon Channel, middle to lower Amazon Fan, NW Equatorial Atlantic.
ODP Site 946  search
BTOcean Drilling Program
 .Leg 155
 ..ODP Site 946
RTNorth Atlantic
 Equatorial Atlantic
SNMiddle to lower Amazon Fan, NW Equatorial Atlantic.
ODP Site 947  search
BTOcean Drilling Program
 .Leg 156
 ..ODP Site 947
RTBarbados Ridge
SNNorthern Barbados accretionary prism convergent margin, NW Atlantic.
ODP Site 948  search
BTOcean Drilling Program
 .Leg 156
 ..ODP Site 948
RTBarbados Ridge
SNNorthern Barbados accretionary prism convergent margin, NW Atlantic.
ODP Site 949  search
BTOcean Drilling Program
 .Leg 156
 ..ODP Site 949
RTBarbados Ridge
 ODP Site 1045
 ODP Site 1046
SNNorthern Barbados accretionary prism convergent margin, NW Atlantic.
ODP Site 950  search
BTOcean Drilling Program
 .Leg 157
 ..ODP Site 950
RTNorth Atlantic
 Madeira abyssal plain
SNCruiser fracture zone valley, Madeira abyssal plain, NE Atlantic.
ODP Site 951  search
BTOcean Drilling Program
 .Leg 157
 ..ODP Site 951
RTNorth Atlantic
 Madeira abyssal plain
SNCharis fracture zone valley, NW Madeira abyssal plain, NE Atlantic.
ODP Site 952  search
BTOcean Drilling Program
 .Leg 157
 ..ODP Site 952
RTNorth Atlantic
 Madeira abyssal plain
SNCruiser fracture zone valley, SE Madeira abyssal plain, NE Atlantic.
ODP Site 953  search
BTOcean Drilling Program
 .Leg 157
 ..ODP Site 953
RTNorth Atlantic
 Canary Islands
SNCanary Islands, NE Atlantic.
ODP Site 954  search
BTOcean Drilling Program
 .Leg 157
 ..ODP Site 954
RTNorth Atlantic
 Canary Islands
SNNear submarine flank of Grand Canary, NE Atlantic.
ODP Site 955  search
BTOcean Drilling Program
 .Leg 157
 ..ODP Site 955
RTNorth Atlantic
 Canary Islands
 DSDP Site 397
SNS Canary Channel, Canary Islands, NE Atlantic.
ODP Site 956  search
BTOcean Drilling Program
 .Leg 157
 ..ODP Site 956
RTNorth Atlantic
 Canary Islands
SNNear Grand Canary, NE Atlantic.
ODP Site 957  search
BTOcean Drilling Program
 .Leg 158
 ..ODP Site 957
RTNorth Atlantic
 Mid-Atlantic Ridge
 TAG hydrothermal field
SNTAG hydrothermal field, N Mid-Atlantic Ridge. Site 957.
ODP Site 958  search
BTOcean Drilling Program
 .Leg 159T
 ..ODP Site 958
RTNorth Atlantic
 Northeast Atlantic
 Leg 108
SNE Canary Basin, NE Atlantic.
ODP Site 959  search
BTOcean Drilling Program
 .Leg 159
 ..ODP Site 959
RTNorth Atlantic
 Equatorial Atlantic
SNPlateau N of Cote-d'Ivoire-Ghana Marginal Ridge, E Equatorial Atlantic.
ODP Site 960  search
BTOcean Drilling Program
 .Leg 159
 ..ODP Site 960
RTNorth Atlantic
 Equatorial Atlantic
SNPlateau on summit of Cote-d'Ivoire-Ghana Marginal Ridge, E Equatorial Atlantic.
ODP Site 961  search
BTOcean Drilling Program
 .Leg 159
 ..ODP Site 961
RTNorth Atlantic
 Equatorial Atlantic
SNEdge of Cote-d'Ivoire-Ghana Marginal Ridge and Deep Ivorian Basin, E Equatorial Atlantic.
ODP Site 962  search
BTOcean Drilling Program
 .Leg 159
 ..ODP Site 962
RTNorth Atlantic
 Equatorial Atlantic
SNSW of Cote-d'Ivoire-Ghana Marginal Ridge, E Equatorial Atlantic.
ODP Site 963  search
BTOcean Drilling Program
 .Leg 160
 ..ODP Site 963
RTEast Mediterranean
 Strait of Sicily
SNStrait of Sicily, East Mediterranean.
ODP Site 964  search
BTOcean Drilling Program
 .Leg 160
 ..ODP Site 964
RTEast Mediterranean
SNAt the foot of the Calabrian Ridge, E Mediterranean.
ODP Site 965  search
BTOcean Drilling Program
 .Leg 160
 ..ODP Site 965
RTEast Mediterranean
SNUpper N slope of Eratosthenes Seamount, East Mediterranean.
ODP Site 966  search
BTOcean Drilling Program
 .Leg 160
 ..ODP Site 966
RTEast Mediterranean
SNE Levantine Basin, margin of Eratosthenes Seamount, E Mediterranean.
ODP Site 967  search
BTOcean Drilling Program
 .Leg 160
 ..ODP Site 967
RTEast Mediterranean
SNNear foot of N slope of Eratosthenes Seamount, E Mediterranean.
ODP Site 968  search
BTOcean Drilling Program
 .Leg 160
 ..ODP Site 968
RTEast Mediterranean
SNCyprus margin, N of Eratosthenes Seamount East Mediterranean.
ODP Site 969  search
BTOcean Drilling Program
 .Leg 160
 ..ODP Site 969
RTEast Mediterranean
 Mediterranean Ridge
SNMediterranean Ridge, E Mediterranean.
ODP Site 970  search
BTOcean Drilling Program
 .Leg 160
 ..ODP Site 970
RTEast Mediterranean
 Mediterranean Ridge
SNMilano mud volcano, Olimpi mud diapir field, Mediterranean Ridge between Crete and Libya, E Mediterranean.
ODP Site 971  search
BTOcean Drilling Program
 .Leg 160
 ..ODP Site 971
RTEast Mediterranean
 Mediterranean Ridge
SNNapoli Dome, Mediterranean Ridge between Crete and Libya, E Mediterranean.
ODP Site 972  search
BTOcean Drilling Program
 .Leg 160
 ..ODP Site 972
RTEast Mediterranean
 Mediterranean Ridge
SNDeformation front of W Mediterranean Ridge, E Mediterranean.
ODP Site 973  search
BTOcean Drilling Program
 .Leg 160
 ..ODP Site 973
RTEast Mediterranean
 Mediterranean Ridge
SNToe of W Mediterranean Ridge accretionary wedge, E Mediterranean.
ODP Site 974  search
BTOcean Drilling Program
 .Leg 161
 ..ODP Site 974
RTWest Mediterranean
 Tyrrhenian Sea
SNTyrrhenian Sea, West Mediterranean.
ODP Site 975  search
BTOcean Drilling Program
 .Leg 161
 ..ODP Site 975
RTWest Mediterranean
 Minorca Rise
SNMinorca Rise, West Mediterranean.
ODP Site 976  search
BTOcean Drilling Program
 .Leg 161
 ..ODP Site 976
RTAlboran Sea
 West Mediterranean
SNW Alboran Basin, W Mediterranean.
ODP Site 977  search
BTOcean Drilling Program
 .Leg 161
 ..ODP Site 977
RTAlboran Sea
 West Mediterranean
SNE Alboran Sea, West Mediterranean.
ODP Site 978  search
BTOcean Drilling Program
 .Leg 161
 ..ODP Site 978
RTAlboran Sea
 West Mediterranean
SNE Alboran Sea, West Mediterranean.
ODP Site 979  search
BTOcean Drilling Program
 .Leg 161
 ..ODP Site 979
RTAlboran Sea
 West Mediterranean
SNAlboran Sea, West Mediterranean.
ODP Site 980  search
BTOcean Drilling Program
 .Leg 162
 ..ODP Site 980
RTRockall Bank
 Northeast Atlantic
SNS edge of Rockall Bank, NE Atlantic.
ODP Site 981  search
BTOcean Drilling Program
 .Leg 162
 ..ODP Site 981
RTRockall Bank
 Northeast Atlantic
SNS edge of Rockall Bank, NE Atlantic.
ODP Site 982  search
BTOcean Drilling Program
 .Leg 162
 ..ODP Site 982
RTRockall Bank
 Northeast Atlantic
SNRockall Bank, NE Atlantic.
ODP Site 983  search
BTOcean Drilling Program
 .Leg 162
 ..ODP Site 983
RTNorth Atlantic
 Reykjanes Ridge
SNE flank of Reykjanes Ridge, NE Atlantic.
ODP Site 984  search
BTOcean Drilling Program
 .Leg 162
 ..ODP Site 984
RTNorth Atlantic
 Reykjanes Ridge
SNE flank of Reykjanes Ridge, NE Atlantic.
ODP Site 985  search
BTOcean Drilling Program
 .Leg 162
 ..ODP Site 985
RTNorwegian Sea
 Icelandic Plateau
SNSlope of Icelandic Plateau, central Norwegian Sea.
ODP Site 986  search
BTOcean Drilling Program
 .Leg 162
 ..ODP Site 986
RTNorwegian Sea
SNW Svalbard margin, N Norwegian Sea.
ODP Site 987  search
BTOcean Drilling Program
 .Leg 162
 ..ODP Site 987
RTNorwegian Sea
SNW Greenland margin, Norwegian Sea.
ODP Site 988  search
BTOcean Drilling Program
 .Leg 163
 ..ODP Site 988
SNSE Greenland margin, N Atlantic.
ODP Site 989  search
BTOcean Drilling Program
 .Leg 163
 ..ODP Site 989
RTNorth Atlantic
 Leg 152
SNSE Greenland continental shelf, S Denmark Strait, N Atlantic.
ODP Site 990  search
BTOcean Drilling Program
 .Leg 163
 ..ODP Site 990
RTGreenland
 Norwegian Sea
SNSE Greenland continental shelf, S Denmark Strait, N Atlantic.
ODP Site 991  search
BTOcean Drilling Program
 .Leg 164
 ..ODP Site 991
RTNorth Atlantic
SNCape Fear Slide, Carolina Rise, NW Atlantic.
ODP Site 992  search
BTOcean Drilling Program
 .Leg 164
 ..ODP Site 992
RTNorth Atlantic
SNCape Fear Slide, Carolina Rise, NW Atlantic.
ODP Site 993  search
BTOcean Drilling Program
 .Leg 164
 ..ODP Site 993
RTNorth Atlantic
SNCape Fear Slide, Carolina Rise, NW Atlantic.
ODP Site 994  search
BTOcean Drilling Program
 .Leg 164
 ..ODP Site 994
RTBlake-Bahama Outer Ridge
 Northwest Atlantic
SNS Blake-Bahama Outer Ridge, NW Atlantic.
ODP Site 995  search
BTOcean Drilling Program
 .Leg 164
 ..ODP Site 995
RTBlake-Bahama Outer Ridge
 Northwest Atlantic
SNS Blake-Bahama Outer Ridge, NW Atlantic.
ODP Site 996  search
BTOcean Drilling Program
 .Leg 164
 ..ODP Site 996
RTBlake-Bahama Outer Ridge
SNBlake-Bahama Outer Ridge, NW Atlantic.
ODP Site 997  search
BTOcean Drilling Program
 .Leg 164
 ..ODP Site 997
RTNorth Atlantic
 Blake-Bahama Outer Ridge
SNCrest of Blake-Bahama Outer Ridge, NW Atlantic.
ODP Site 998  search
BTOcean Drilling Program
 .Leg 165
 ..ODP Site 998
RTCaribbean Sea
SNCayman Rise between Yucatan Basin and Cayman Ridge, NW Caribbean Sea.
ODP Site 999  search
BTOcean Drilling Program
 .Leg 165
 ..ODP Site 999
RTCaribbean Sea
 Colombian Basin
SNKogi Rise, Colombian Basin, SW Caribbean Sea.
Odra River valley  search
USEOder Valley
Oerebro Sweden  search
USEOrebro Sweden
Oesel  search
USESaaremaa
Oetztal Alps  search
USEOtztal Alps
Oetztal Massif  search
USEOtztal Alps
Oetztaler  search
USEOtztal Alps
off-lying  search
USEoffshore
Officer Basin  search
BTAustralasia
 .Australia
 ..Officer Basin
RTSouth Australia
 Western Australia
SNSedimentary basin in SW central Australia. Indexed with states as applicable.
offre  search
offretite  search
BTsilicates
 .framework silicates
 ..zeolite group
 ...offretite
RTaluminosilicates
offsets  search
SNUse AVO methods if applicable.
offshore  search
UFoff-lying
RTAMCOR
 continental shelf
 continental slope
 marine drilling
 petroleum
 production
 shorelines
 Continental Offshore Stratigraphic Test
 natural gas
 exploration
 Exclusive Economic Zone
 onshore
 Hibernia Field
 marine geology maps
 United States Exclusive Economic Z
SNAs of 1985, term is to be used for petroleum and natural gas exploration and production. Before 1989, search offshore Alaska if applicable.
offshore Alaska  search
SNNot a valid term for GeoRef. As of 1989, search Alaska AND offshore. For indexing purposes, use Alaska and offshore as two separate terms.
Oficina  search
BTSouth America
 .Venezuela
 ..Anzoategui Venezuela
 ...Oficina
RToil and gas fields
 Carapita Formation
SNOil field near town of El Tigre in NE central Venezuela.
Oficina Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Neogene
 ....Miocene
 .....Oficina Formation
RTVenezuela
 Carapita Formation
SNE Venezuela. Added to Thesaurus in 1989.
Ofot Fjord  search
USEOfoten
Ofoten  search
BTEurope
 .Western Europe
 ..Scandinavia
 ...Norway
 ....Nordland Norway
 .....Ofoten
UFOfot Fjord
SNFjord on west coast of Norway. NE extension of Vest Fjord on which Narvik is located.
Oga Peninsula  search
BTnshu
 .Akita Japan
 ..Oga Peninsula
SNExtends into Japan Sea in N Honshu.
Ogallala Aquifer  search
BTUnited States
 .Ogallala Aquifer
RTNew Mexico
 Wyoming
 Oklahoma
 Colorado
 Nebraska
 Texas
 Kansas
 Ogallala Formation
SNUsed for hydrogeology. For actual formation, use Ogallala Formation. Indexed with states as applicable. Added to Thesaurus in 1989.
Ogallala Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Neogene
 ....Ogallala Formation
RTPliocene
 Miocene
 New Mexico
 Wyoming
 Oklahoma
 Colorado
 Nebraska
 Texas
 Kansas
 Ash Hollow Formation
 Ogallala Aquifer
 Valentine Formation
SNIncludes Burge Sands, Valentine Beds, Ash Hollow Member, Kimball Member. NE Colorado, W and central Kansas, W Nebraska, E New Mexico, W Oklahoma, NW Texas and SE Wyoming. As of 1989, use Ogallala Aquifer for hydrogeological discussions.
Ogasawara Islands  search
USEBonin Islands
Ogcheon Belt  search
BTAsia
 .Far East
 ..Korea
 ...South Korea
 ....Ogcheon Belt
UFOgcheon Zone
SNMiddle belt of Korean Peninsula, composed of partly metamorphosed Cambro-Ordovician or younger rocks, which have undergone repeated thrusting.
Ogcheon Zone  search
USEOgcheon Belt
Ogden Utah  search
BTUnited States
 .Utah
 ..Weber County Utah
 ...Ogden Utah
SNCity in N Utah.
Ogdensburg New York  search
BTUnited States
 .New York
 ..Saint Lawrence County New York
 ...Ogdensburg New York
SNCity on the Saint Lawrence River in N New York.
Ogemaw County Michigan  search
BTUnited States
 .Michigan
 ..Michigan Lower Peninsula
 ...Ogemaw County Michigan
Ogilvie Mountains  search
BTCanada
 .Western Canada
 ..Yukon Territory
 ...Ogilvie Mountains
SNRange in central Yukon Territory.
Ogle County Illinois  search
BTUnited States
 .Illinois
 ..Ogle County Illinois
Oglethorpe County Georgia  search
BTUnited States
 .Georgia
 ..Oglethorpe County Georgia
ogo Japan  search
NTAkenobe Mine
 Ikuno Mine
 Kobe Japan
 Rokko Mountains
OGS  search
USEOntario Geological Survey
Oguni Japan  search
BTAsia
 .Far East
 ..Japan
 ...Oguni Japan
RTKumamoto Japan
 geothermal fields
 Yamagata Japan
SNTown on Honshu in Yamagata Prefecture. Also a geothermal area in Kumamoto Prefecture. Indexed with prefecture as applicable.
Ohio  search
BTUnited States
 .Ohio
NTAdams County Ohio
 Allen County Ohio
 Ashland County Ohio
 Ashtabula County Ohio
 Athens County Ohio
 Auglaize County Ohio
 Belmont County Ohio
 Brown County Ohio
 Butler County Ohio
 Carroll County Ohio
 Champaign County Ohio
 Clark County Ohio
 Clermont County Ohio
 Clinton County Ohio
 Columbiana County Ohio
 Coshocton County Ohio
 Crawford County Ohio
 Cuyahoga County Ohio
 Darke County Ohio
 Defiance County Ohio
 Delaware County Ohio
 Erie County Ohio
 Fairfield County Ohio
 Fayette County Ohio
 Franklin County Ohio
 Fulton County Ohio
 Gallia County Ohio
 Geauga County Ohio
 Greene County Ohio
 Guernsey County Ohio
 Hamilton County Ohio
 Hancock County Ohio
 Hardin County Ohio
 Harrison County Ohio
 Henry County Ohio
 Highland County Ohio
 Hocking County Ohio
 Holmes County Ohio
 Huron County Ohio
 Jackson County Ohio
 Jefferson County Ohio
 Knox County Ohio
 Lake County Ohio
 Lawrence County Ohio
 Licking County Ohio
 Logan County Ohio
 Lorain County Ohio
 Lucas County Ohio
 Madison County Ohio
 Mahoning County Ohio
 Marion County Ohio
 Medina County Ohio
 Meigs County Ohio
 Mercer County Ohio
 Miami County Ohio
 Monroe County Ohio
 Montgomery County Ohio
 Morgan County Ohio
 Morrow County Ohio
 Muskingum County Ohio
 Noble County Ohio
 Ottawa County Ohio
 Paulding County Ohio
 Perry County Ohio
 Pickaway County Ohio
 Pike County Ohio
 Portage County Ohio
 Preble County Ohio
 Putnam County Ohio
 Richland County Ohio
 Ross County Ohio
 Sandusky County Ohio
 Sandusky River basin
 Scioto County Ohio
 Scioto River basin
 Seneca County Ohio
 Shelby County Ohio
 Stark County Ohio
 Summit County Ohio
 Trumbull County Ohio
 Tuscarawas County Ohio
 Union County Ohio
 Van Wert County Ohio
 Vinton County Ohio
 Warren County Ohio
 Washington County Ohio
 Wayne County Ohio
 Williams County Ohio
 Wood County Ohio
 Wyandot County Ohio
RTAppalachian Basin
 Appalachian Plateau
 Allegheny Group
 Allegheny Plateau
 Bass Islands Dolomite
 Bedford Shale
 Berea S
Ohio County Indiana  search
BTIndiana
 .Ohio County Indiana
Ohio County Kentucky  search
BTUnited States
 .Kentucky
 ..Ohio County Kentucky
Ohio County West Virginia  search
BTUnited States
 .West Virginia
 ..Ohio County West Virginia
NTWheeling West Virginia
SNN West Virginia.
Ohio Range  search
BTAntarctica
 .Ohio Range
SNN of the Horlick Mountains and S of Marie Byrd Land.
Ohio River  search
BTUnited States
 .Ohio River
RTKentucky
 Illinois
 Indiana
 Ohio
 Pennsylvania
 West Virginia
 Cincinnati Ohio
SNFormed by confluence of the Allegheny and Monongahela rivers at Pittsburgh. It flows W and SW into the Mississippi River at Cairo, Illinois. Indexed with states as applicable.
Ohio River basin  search
BTUnited States
 .Ohio River basin
RTKentucky
 Illinois
 Indiana
 Ohio
 Pennsylvania
 West Virginia
 Mississippi River basin
SNE United States. Formed by confluence of Allegheny and Monongahela rivers. Chief tributaries are Beaver River, Muskingum River, Hocking River, Scioto River, Miami River, Wabash River, Kanawha River, Guyandot River, Big Sandy River, Licking River, Kentucky
Ohio River valley  search
BTUnited States
 .Ohio River valley
UFOhio Valley
RTKentucky
 Illinois
 Indiana
 Ohio
 Pennsylvania
 West Virginia
SNIndexed with states as applicable.
Ohio Shale  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Devonian
 ....Upper Devonian
 .....Ohio Shale
RTKentucky
 Ohio
 West Virginia
 Cleveland Member
 Huron Member
SNIncludes Cleveland Member, Huron Member, Chagrin Member. Ohio, N central Kentucky, and West Virginia.
Ohio State University  search
RTacademic institutions
 Ohio
SNIn Columbus, Franklin County.
Ohio Valley  search
USEOhio River valley
OIB  search
USEocean-island basalts
oil (petroleum)  search
USEpetroleum
oil and gas  search
USEpetroleum
oil and gas fields  search
NTgiant fields
UFfields, oil and gas
 gas fields
 oil fields
RTAberfeldy Field
 economic geology
 Azalea Field
 Barrow Field
 Bell Creek Field
 blowouts
 Buccaneer Field
 Cedar Hill Field
 degasification
 Cottageville Field
 Cusiana Field
 Daqing Field
 East Texas Field
 Ekofisk Field
 Elk Hills Field
 Elmworth Field
 Emba Field
 Eug
SNFor detailed descriptions of individual fields or for discussions of the origin of several fields. Commodity. See List C.
oil fields  search
USEoil and gas fields
oil reserves  search
SNNot a valid term for GeoRef. See petroleum; reserves.
oil resources  search
SNNot a valid term for GeoRef. See petroleum; resources.
oil sands  search
BTsedimentary rocks
 .oil sands
UFbituminous sands
 tar sands
RTorganic compounds
 oil shale
 petroleum
 energy sources
 Sunnyside Mine
 gas sands
 tight sands
SNBefore 1968, also search bituminous rocks and sands. Commodity. See List C.
oil seeps  search
UFpetroleum seepage
 seeps, oil
RTbitumens
 seepage
 petroleum
 cold seeps
 gas seeps
oil shale  search
BTsedimentary rocks
 .oil shale
NTkukersite
UFshale oil
RTorganic compounds
 anthraxolite
 Anvil Points Mine
 shale
 petroleum
 energy sources
 kerogen
 retorting
 oil sands
 torbanite
SNBefore 1968, also search bituminous rocks and sands. See List C for use as a commodity term.
oil spills  search
NTExxon Valdez oil spill
UFspills, oil
RTpollution
 petroleum
 dense nonaqueous phase liquids
 crude oil
 nonaqueous phase liquids
 light nonaqueous phase liquids
oil storage  search
RTengineering geology
 gas storage
 leaking underground storage tanks
 petroleum
 petroleum engineering
 storage
 underground installations
 underground storage
 underground storage tanks
SNAdded to Thesaurus in 1983.
oil wells  search
NTabandoned oil wells
RTfluid injection
 gas injection
 observation wells
 oil and gas fields
 petroleum
 petroleum engineering
 reinjection wells
SNUsed for both oil and gas wells. For large-scale geologic and economic studies of well fields, oil and gas fields is used. Indexed with petroleum engineering OR pollution if applicable. Added to Thesaurus in 1998.
oil-gas inte  search
oil-gas interface  search
UFinterface, oil-gas
RTinterfaces
 petroleum
 gases
 natural gas
 oil-water interface
SNBefore 1978, search interface AND oil-gas.
oil-water contact  search
USEoil-water interface
oil-water interface  search
UFinterface, oil-water
 oil-water contact
 water-oil interface
RTinterfaces
 water
 petroleum
 meteoric water
 gas-water interface
 oil-gas interface
SNBefore 1978, search oil-water AND interface. Also search gas-water interface if applicable.
Oise France  search
BTEurope
 .Western Europe
 ..France
 ...Oise France
NTBaron France
 Clermont France
 Creil France
RTOise River valley
SNDepartment in N France.
Oise River valley  search
BTEurope
 .Western Europe
 ..France
 ...Oise River valley
UFOise Valley
RTAisne France
 Oise France
 Val-d'Oise France
SNIndexed with departments as applicable.
Oise Valley  search
USEOise River valley
Oita Japan  search
BTAsia
 .Far East
 ..Japan
 ...Kyushu
 ....Oita Japan
NTBeppu Japan
 Kuju
 Otake Field
RTMie Japan
SNCity and prefecture in NE Kyushu, S Japan.
Ojika Peninsula  search
USEOshika Peninsula
Ojo Alamo Sandstone  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Mesozoic
 ...Cretaceous
 ....Upper Cretaceous
 .....Ojo Alamo Sandstone
RTNew Mexico
SNNW New Mexico.
Ojo de Liebre Lagoon  search
BTMexico
 .Baja California Norte Mexico
 ..Ojo de Liebre Lagoon
RTBaja California
SNInlet of Sebastian Vizcaino Bay on NW coast.
Oka Complex  search
BTCanada
 .Eastern Canada
 ..Quebec
 ...Oka Complex
SNCarbonatite complex mined for pyrochlore (niobium ores). In S Quebec. Added to Thesaurus in 1981.
Oka River  search
BTCommonwealth of Independent States
 .Russian Federation
 ..Oka River
RTAsia
 Europe
 Irkutsk Russian Federation
SNRiver W of Lake Baikal in central Irkutsk Oblast which flows into the Angara River. Also a river in central European Russian Federation which flows into the Volga at Nizhniy Novgorod (formerly Gorki). Before 1978, also search Oka AND USSR. Indexed with Eu
Okaloosa County Florida  search
BTUnited States
 .Florida
 ..Okaloosa County Florida
Okanagan Valley  search
BTNorth America
 .Okanagan Valley
UFOkanagen Valley
 Okanogan Valley
RTWashington
 British Columbia
SNRiver valley. Called Okanogan Valley in the U.S. Indexed with British Columbia and/or Washington as applicable.
Okanagen Valley  search
USEOkanagan Valley
Okanogan County Washington  search
BTUnited States
 .Washington
 ..Okanogan County Washington
NTMethow River valley
SNN Washington.
Okanogan Range  search
BTNorth America
 .Okanogan Range
RTWashington
 British Columbia
SNS British Columbia and N Washington. Added to Thesaurus in 1985.
Okanogan Valley  search
USEOkanagan Valley
Okayama Japan  search
BTnshu
 .Okayama Japan
RTChugoku
 Mitsuishi Japan
SNCity and prefecture on N side of Inland Sea W of Kobe in W Honshu.
Okeechobee County Florida  search
BTUnited States
 .Florida
 ..Okeechobee County Florida
Okefenokee Swamp  search
BTUnited States
 .Okefenokee Swamp
RTFlorida
 Georgia
 Baker County Florida
 Columbia County Florida
 Suwannee River
SNMostly in SE Georgia (Charlton, Ware, Clinch, Brantley counties). Partly in NE Florida (Baker and Columbia counties). Indexed with states and counties as applicable.
Okehampton England  search
BTEurope
 .Western Europe
 ..United Kingdom
 ...Great Britain
 ....England
 .....Devonshire England
 ......Okehampton England
SNTown in Devonshire in SW England.
Okfuskee County Oklahoma  search
BTUnited States
 .Oklahoma
 ..Okfuskee County Oklahoma
Okhotsk Massif  search
BTCommonwealth of Independent States
 .Russian Federation
 ..Magadan Russian Federation
 ...Okhotsk Massif
UFOkhotskoye Ploskogor'ye
SNJust N of Magadan in S Magadan Oblast in E Siberia. This term has multiple hierarchies.
Okhotsk Plate  search
RTJapan
 Okhotsk Sea
 plate tectonics
 plates
SNOkhotsk Sea-N Japan. Also search Okhotsk Block if applicable. Indexed with geographic area and/or age as applicable.
Okhotsk region  search
BTCommonwealth of Independent States
 .Russian Federation
 ..Okhotsk region
BTAsia
 .Okhotsk region
RTMagadan Russian Federation
 Kamchatka Russian Federation
 Dzhugdzhur region
 Kuril Islands
 Sakhalin
SNThe Okhotsk Sea and the land areas surrounding it. This term has multiple hierarchies. Added to Thesaurus in 1981.
Okhotsk Russian Federation  search
BTCommonwealth of Independent States
 .Russian Federation
 ..Khabarovsk Russian Federation
 ...Okhotsk Russian Federation
SNTown on NW coast of Okhotsk Sea in Khabarovsk Kray in E Siberia. Before 1993, Okhotsk Russian Republic was also used. This term has multiple hierarchies.
Okhotsk Sea  search
BTPacific Ocean
 .North Pacific
 ..Northwest Pacific
 ...Okhotsk Sea
UFSea of Okhotsk
RTTancheng-Lujiang fault zone
 Tatar Strait
 Okhotsk Plate
SNWest of Kamchatka Peninsula and the Kuril Islands. This term has multiple hierarchies.
Okhotsk-Chukchi  search
BTCommonwealth of Independent States
 .Russian Federation
 ..Okhotsk-Chukchi
BTAsia
 .Okhotsk-Chukchi
RTRussian Far East
 Chukchi Peninsula
SNLarge region extending NE of Okhotsk Sea, including area of Chukchi Peninsula. This term has multiple hierarchies.
Okhotsk-Chukchi volcanic belt  search
BTCommonwealth of Independent States
 .Russian Federation
 ..Okhotsk-Chukchi volcanic belt
BTAsia
 .Okhotsk-Chukchi volcanic belt
UFOkhotsk-Chukot volcanic belt
RTMagadan Russian Federation
 Kamchatka Russian Federation
 Kamchatka Peninsula
SNIncludes numerous ranges extending S from the Chukchi Peninsula around both sides of Okhotsk Sea. Many volcanoes are still active in Kamchatka Peninsula. Also search Okhotsk-Chukchi. This term has multiple hierarchies.
Okhotsk-Chukot volcanic belt  search
USEOkhotsk-Chukchi volcanic belt
Okhotskoye Ploskogor'ye  search
USEOkhotsk Massif
Oki Archipelago  search
USEOki Islands
Oki Islands  search
BTnshu
 .Shimane Japan
 ..Oki Islands
NTDogo Island
UFOki Archipelago
 Oki Retto
RTChibaken-Toho-Oki earthquake 1987
 Tokachi-Oki earthquake 1968
SNIn SE Japan Sea 44 miles off W coast of Honshu.
Oki Retto  search
USEOki Islands
Oki Ridge  search
BTPacific Ocean
 .North Pacific
 ..Northwest Pacific
 ...Japan Sea
 ....Oki Ridge
RTLeg 128
 ODP Site 798
SNSE Japan Sea, S of Yamato Basin. This term has multiple hierarchies.
Okinawa  search
BTAsia
 .Far East
 ..Japan
 ...Ryukyu Islands
 ....Okinawa
RTIshikawa Japan
SNMajor island in Okinawa Island group midway between the main islands of Japan and Taiwan.
Okinawa Trench  search
USEOkinawa Trough
Okinawa Trough  search
BTPacific Ocean
 .North Pacific
 ..Northwest Pacific
 ...Okinawa Trough
UFOkinawa Trench
RTJapan
 East China Sea
SNThis term has multiple hierarchies. Added to Thesaurus in 1989.
Oklahoma  search
BTUnited States
 .Oklahoma
NTAdair County Oklahoma
 Alfalfa County Oklahoma
 Arbuckle Anticline
 Arbuckle Mountains
 Atoka County Oklahoma
 Beaver County Oklahoma
 Beckham County Oklahoma
 Blaine County Oklahoma
 Bryan County Oklahoma
 Caddo County Oklahoma
 Canadian County Oklahoma
 Carter County Oklahoma
 Cherokee County Oklahoma
 Choctaw County Oklahoma
 Cimarron County Oklahoma
 Cleveland County Oklahoma
 Coal County Oklahoma
 Comanche County Oklahoma
 Cotton County Oklahoma
 Craig County Oklahoma
 Creek County Oklahoma
 Criner Hills
 Custer County Oklahoma
 Delaware County Oklahoma
 Dewey County Oklahoma
 Ellis County Oklahoma
 Garfield County Oklahoma
 Garvin County Oklahoma
 Grady County Oklahoma
 Grant County Oklahoma
 Greer County Oklahoma
 Harmon County Oklahoma
 Harper County Oklahoma
 Haskell County Oklahoma
 Hughes County Oklahoma
 Jackson County Oklahoma
 Jefferson County Oklahoma
 Johnston County Oklahoma
 Kay County Oklahoma
 Kingfisher County Oklahoma
 Kiowa County Oklahoma
 Latimer County Oklahoma
 Le Flore County Oklahoma
 Lincoln County Oklahoma
 Logan County Oklahoma
 Love County Oklahoma
 Major County Oklahoma
 Marshall County Oklahoma
 Mayes County Oklahoma
 McClain County Oklahoma
 McCurtain County Oklahoma
 McIntosh County Oklahoma
 Meers Fault
 Murray County Oklahoma
 Muskogee County Oklahoma
 Noble County Oklahoma
 Nowata County Oklahoma
 Okfuskee County Oklahoma
 Oklahoma County Oklahoma
 Oklahoma Panhandle
 Okmulgee County Oklahoma
 Osage County Oklahoma
 Ottawa County Oklahoma
 Pawnee County Oklahoma
 Payne County Oklahoma
 Pittsburg County Oklahoma
 Pontotoc County Oklahoma
 Pottawatomie County Oklahoma
 Pushmataha County Oklahoma
 Roger Mills County Oklahoma
 Rogers County Oklahoma
 Seminole County Oklahoma
 Sequoyah County Oklahoma
 Stephens County Oklahoma
 Texas County Oklahoma
 Tillman County Oklahoma
 Tulsa County Oklahoma
 Wagoner County Oklahoma
 Washington County Oklahoma
 Washita County Oklahoma
 Wichita Mountains
 Wichita Uplift
 Woods County Oklahoma
 Woodward County Oklahoma
RTAmericus Limestone Member
 Anadarko Basin
 Antlers Sands
 Arbuckle Group
 Ardmore Basin
 Arkansas Novaculite
 Arkansas River
 Arkansas River valley
 Arkoma Basin
 Atoka Formation
 Bartlesville Sand
 Benton Uplift
 Bigfork Chert
 Blaine Formation
 Bloyd Formation
 Boggy
Oklahoma County Oklahoma  search
BTUnited States
 .Oklahoma
 ..Oklahoma County Oklahoma
SNCentral Oklahoma.
Oklahoma Panhandle  search
BTUnited States
 .Oklahoma
 ..Oklahoma Panhandle
RTBeaver County Oklahoma
 Cimarron County Oklahoma
 Texas County Oklahoma
SNNW Oklahoma. Before 1993, also search Panhandle AND Oklahoma. Indexed with counties as applicable. Added to Thesaurus in 1993.
Oklo  search
BTAfrica
 .Central Africa
 ..Gabon
 ...Oklo
RTuranium ores
SNGabon. Site of natural reactor in uranium deposit.
Okmulgee County Oklahoma  search
BTUnited States
 .Oklahoma
 ..Okmulgee County Oklahoma
Oktemberyan Series  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Neogene
 ....Miocene
 .....Oktemberyan Series
RTArmenia
Oktibbeha County Mississippi  search
BTUnited States
 .Mississippi
 ..Oktibbeha County Mississippi
Oktyabr Uzbekistan  search
BTAsia
 .Uzbekistan
 ..Oktyabr Uzbekistan
SNTown in SE Uzbekistan. This term has multiple hierarchies.
Okujiri  search
USEOkushiri Island
Okushiri Island  search
BTkkaido
 .Okushiri Island
UFOkujiri
 Okushiri-shima
SNIn Japan Sea off SW coast of Hokkaido.
Okushiri-shima  search
USEOkushiri Island
Ol Doinyo Lengai  search
USEOldoinyo Lengai
Oland  search
BTEurope
 .Western Europe
 ..Scandinavia
 ...Sweden
 ....Kalmar Sweden
 .....Oland
UFOland Island
RTBaltic Sea
SNIsland in Baltic Sea off SE coast of Sweden.
Oland Island  search
USEOland
Old Castile Spain  search
BTEurope
 .Southern Europe
 ..Iberian Peninsula
 ...Spain
 ....Castile Spain
 .....Old Castile Spain
UFCastilla la Vieja
RTAvila Spain
 Castilla y Leon Spain
 Sierra de Guadarrama
 Burgos Spain
 Sierra de la Demanda
 Cantabria Spain
 La Rioja Spain
 Palencia Spain
 Segovia Spain
 Soria Spain
 Valladolid Spain
SNRegion in N central Spain. Before 1998, included provinces as narrower terms.
Old Crow  search
SNNo longer a valid term for GeoRef. Use Old Crow Basin or Old Crow Yukon Territory for the village in N Yukon Territory.
Old Crow Basin  search
RTYukon Territory
SNRiver basin. Indexed with Yukon Territory if applicable. Added to Thesaurus in 1995.
Old Crow Tephra  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Quarternary
 ....Pleistocene
 .....Upper Pleistocene
 ......Old Crow Tephra
RTAlaska
 Yukon Territory
SNUpper Pleistocene. Alaska and Yukon Territory. Added to Thesaurus in 1993.
Old Faithful Geyser  search
RTCalistoga California
 Napa County California
 Teton County Wyoming
 Yellowstone National Park
SNIn Yellowstone National Park, NW Wyoming. Also in other locations. Indexed with county or location as applicable.
Old Red Sandstone  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Devonian
 ....Old Red Sandstone
RTDowntonian
 Dittonian
SNGreat Britain.
Old Stone Age  search
USEPaleolithic
Old Woman Mountains  search
BTUnited States
 .California
 ..San Bernardino County California
 ...Old Woman Mountains
RTMojave Desert
SNAdded to Thesaurus in 1993.
Older Dryas  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Quarternary
 ....Pleistocene
 .....Upper Pleistocene
 ......Weichselian
 .......upper Weichselian
 ........Older Dryas
RTDryas
SNTerm used primarily in Europe for an interval of late glacial time following the Bolling and preceding the Allerod. Before 1978, search Dryas.
Oldest Dryas  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Quarternary
 ....Pleistocene
 .....Upper Pleistocene
 ......Weichselian
 .......Oldest Dryas
RTDryas
SNUsed primarily in Europe for an interval of late-glacial time preceding the Bolling. Before 1978, search Dryas.
Oldham County Kentucky  search
BTUnited States
 .Kentucky
 ..Oldham County Kentucky
Oldham County Texas  search
BTUnited States
 .Texas
 ..Oldham County Texas
oldhamite  search
BTsulfides
 .oldhamite
RTmeteorites
SNMeteorite mineral.
Oldman Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Mesozoic
 ...Cretaceous
 ....Upper Cretaceous
 .....Oldman Formation
RTAlberta
 Belly River Formation
SNOf the Belly River Group.
Oldoinyo Lengai  search
BTAfrica
 .East Africa
 ..Tanzania
 ...Oldoinyo Lengai
UFOl Doinyo Lengai
RTvolcanoes
SNVolcano in N Tanzania.
Olduvai Event  search
USEOlduvai Subchron
Olduvai Gorge  search
BTAfrica
 .East Africa
 ..Tanzania
 ...Olduvai Gorge
SNSite of rich fossil beds in N Tanzania. Also search Olduvai.
Olduvai Subchron  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Quarternary
 ....Pleistocene
 .....Lower Pleistocene
 ......Olduvai Subchron
UFOlduvai Event
RTpaleomagnetism
 reversals
 Matuyama Chron
SNNormal part of Matuyama Chron.
oleananes  search
BTorganic compounds
 .hydrocarbons
 ..aromatic hydrocarbons
 ...oleananes
BTorganic compounds
 .hydrocarbons
 ..triterpanes
 ...oleananes
RTbiomarkers
SNPentacyclic triterpanes. This term has multiple hierarchies.
Olekma River  search
BTCommonwealth of Independent States
 .Russian Federation
 ..Olekma River
BTAsia
 .Olekma River
RTYakutia Russian Federation
 Chita Russian Federation
SNRiver in N Chita Oblast and S Yakutia in SE central Siberia. Also search Olekma. This term has multiple hierarchies.
Olekma-Vitim Highlands  search
BTCommonwealth of Independent States
 .Russian Federation
 ..Olekma-Vitim Highlands
BTAsia
 .Olekma-Vitim Highlands
UFOlekma-Vitim mountain country
 Olekma-Vitim Mountains
RTBuryat Russian Federation
 Chita Russian Federation
SNIn NE Buryatia and NW Chita Oblast in N Transbaikalia. This term has multiple hierarchies.
Olekma-Vitim mountain country  search
USEOlekma-Vitim Highlands
Olekma-Vitim Mountains  search
USEOlekma-Vitim Highlands
Olenek River  search
BTCommonwealth of Independent States
 .Russian Federation
 ..Yakutia Russian Federation
 ...Olenek River
SNRises in Central Siberian Plateau and flows NE through Yakutia into Laptev Sea. Also search Olenek. This term has multiple hierarchies.
Olenekian  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Mesozoic
 ...Triassic
 ....Lower Triassic
 .....Olenekian
RTScythian
 Werfenian
SNSiberia.
Olenidae  search
BTInvertebrata
 .Arthropoda
 ..Trilobitomorpha
 ...Trilobita
 ....Ptychopariida
 .....Olenidae
SNFamily.
Olentangy Shale  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Devonian
 ....Upper Devonian
 .....Olentangy Shale
RTOhio
SNPlum Brook Shale has been correlated with Olentangy, and so-called Prout Limestone has been regarded as member of Olentangy Shale. Central Ohio.
Oligocene  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Paleogene
 ....Oligocene
NTRupelian
 Chattian
 Bembridge Marls
 Boom Clay
 Brule Formation
 Buda Marl
 Creede Formation
 Cypress Hills Formation
 Fish Canyon Tuff
 Florissant Lake Beds
 Frio Formation
 Glendon Limestone
 Grimmertingen
 Hackberry Formation
 Hemlock Conglomerate
 Krosno Beds
 lower Oligocene
 middle Oligocene
 Nari Series
 upper Oligocene
 Wiggins Formation
RTCatahoula Formation
 Apache Leap Tuff
 Barail Group
 Bluff Formation
 Chesapeake Group
 Carapita Formation
 Challis Volcanics
 Claron Formation
 Duchesne River Formation
 Hector Formation
 Lincoln Creek Formation
 Poltava Series
 Refugian
 Renova Formation
 Rincon Form
SNWorldwide. Above Eocene, below Miocene.
Oligochaetia  search
BTInvertebrata
 .Vermes
 ..Oligochaetia
oligoclase  search
BTsilicates
 .framework silicates
 ..feldspar group
 ...plagioclase
 ....oligoclase
olistoliths  search
BTsedimentary structures
 .soft sediment deformation
 ..olistoliths
RTturbidity current structures
 olistostromes
SNAlso index turbidity current structures if applicable (See list K.)
olistostromes  search
BTsedimentary structures
 .soft sediment deformation
 ..olistostromes
RTturbidity current structures
 olistoliths
SNAlso index turbidity current structures if applicable (See list K.)
Oliver County North Dakota  search
BTUnited States
 .North Dakota
 ..Oliver County North Dakota
SNW central North Dakota.
olivine  search
BTsilicates
 .orthosilicates
 ..nesosilicates
 ...olivine group
 ....olivine
SNA mineral in the olivine group. See also olivine group.
olivine basalt  search
BTigneous rocks
 .volcanic rocks
 ..basalts
 ...olivine basalt
RTalkali olivine basalt
olivine diabase  search
BTigneous rocks
 .plutonic rocks
 ..diabase
 ...olivine diabase
UFolivine dolerite
olivine dolerite  search
USEolivine diabase
olivine gabbro  search
BTigneous rocks
 .plutonic rocks
 ..gabbros
 ...olivine gabbro
olivine group  search
BTsilicates
 .orthosilicates
 ..nesosilicates
 ...olivine group
NTfayalite
 forsterite
 monticellite
 olivine
 peridot
 tephroite
 wadsleyite
olivine nephelinite  search
BTigneous rocks
 .plutonic rocks
 ..gabbros
 ...alkali gabbros
 ....olivine nephelinite
RTnephelinite
 ankaratrite
 nepheline basalt
olivine tholeiite  search
BTigneous rocks
 .volcanic rocks
 ..basalts
 ...olivine tholeiite
RTtholeiite
olivinite  search
BTigneous rocks
 .plutonic rocks
 ..ultramafics
 ...olivinite
Olkiluoto  search
BTEurope
 .Western Europe
 ..Scandinavia
 ...Finland
 ....Western Finland Province
 .....Eurajoki Finland
 ......Olkiluoto
RTnuclear facilities
SNIsland off SW Finnish coast. Site of nuclear power plant.
Olkusz Poland  search
BTEurope
 .Central Europe
 ..Poland
 ...Katowice Poland
 ....Olkusz Poland
SNTown in E Katowice, S Poland.
ollow Formation#Bald Mountain#Bear Mountain#Benton Formation#Bighorn Dolomite#Bl  search
Olmos Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Mesozoic
 ...Cretaceous
 ....Upper Cretaceous
 .....Gulfian
 ......Olmos Formation
RTTexas
 Navarro Group
SNIn Navarro Group. SW Texas. Added to Thesaurus in 1985.
Olmsted County Minnesota  search
BTUnited States
 .Minnesota
 ..Olmsted County Minnesota
Olsztyn Poland  search
BTEurope
 .Central Europe
 ..Poland
 ...Olsztyn Poland
SNProvince in N Poland. Also its capital city SE of Gdansk.
Olt River  search
BTEurope
 .Southern Europe
 ..Romania
 ...Olt River
UFOltul
RTTransylvania
 Walachia
 Olt River valley
SNCentral and S Romania, in Transylvania and Walachia. Also search Olt and Olt River valley.
Olt River valley  search
BTEurope
 .Southern Europe
 ..Romania
 ...Olt River valley
UFOlt Valley
 Oltul Valley
RTTransylvania
 Walachia
 Olt River
SNAlso search Olt. Indexed with regions as applicable.
Olt Valley  search
USEOlt River valley
Oltenia  search
BTEurope
 .Southern Europe
 ..Romania
 ...Walachia
 ....Oltenia
UFLesser Walachia
 Little Walachia
SNA sub-region. W part of Walachia.
Oltrepo Pavese Italy  search
USEPavia Italy
Oltul  search
USEOlt River
Oltul Valley  search
USEOlt River valley
Olympic Dam Deposi  search
Olympic Dam Deposit  search
BTAustralasia
 .Australia
 ..South Australia
 ...Olympic Dam Deposit
RTcopper ores
 gold ores
 uranium ores
SNCopper, uranium and gold ores in Roxby Downs, S Australia. Also search Olympic Dam.
Olympic Mountains  search
BTUnited States
 .Washington
 ..Olympic Mountains
RTnational parks
 Blue Glacier
 Coast Ranges
 Clallam County Washington
 Jefferson County Washington
 Mason County Washington
SNPart of the Coast Ranges in Olympic National Park on the Olympic Peninsula in NW Washington. Indexed with Coast Ranges AND counties as applicable.
Olympic Peninsula  search
BTUnited States
 .Washington
 ..Olympic Peninsula
SNBetween the Pacific Ocean and Puget Sound in NW Washington.
Olympus  search
UFMount Olympus
 Mt. Olympus
RTJefferson County Washington
 Thessaly Greece
SNHighest mountain in Greece, NE Greece. Also used for peak in Jefferson County, Washington and in other locations. Search in combination with Greece if applicable. Indexed with Thessaly Greece if applicable.
Olympus Mons  search
BTMars
 .Olympus Mons
UFNix Olympia
RTvolcanoes
SNVolcano on Mars. Added to Thesaurus in 1985.
Oman  search
BTAsia
 .Arabian Peninsula
 ..Oman
NTOman Mountains
RTKhuff Formation
 Shuaiba Formation
 impact features
 Middle East
 Near East
 Semail Ophiolite
 Thamama Group
SNFormerly Muscat and Oman.
Oman Mountains  search
BTAsia
 .Arabian Peninsula
 ..Oman
 ...Oman Mountains
RTSemail Ophiolite
Oman Ophiolite  search
USESemail Ophiolite
Omi (Lake)  search
USELake Biwa
Omine Mine  search
BTnshu
 .Iwate Japan
 ..Omine Mine
RTmines
 metal ores
SNMetal ores. Near town of Omine in SW Honshu.
Omineca Belt  search
BTNorth America
 .Omineca Belt
RTAlberta
 Washington
 British Columbia
 Yukon Territory
 Valhalla Complex
SNOne of several tectonic belts between the Coast Ranges and the Rocky Mountains extending from Washington state through British Columbia to Yukon Territory. Also index Canadian provinces and/or Washington with counties as applicable. Added to Thesaurus in
Omineca Mountains  search
BTCanada
 .Western Canada
 ..British Columbia
 ...Omineca Mountains
SNNW British Columbia.
Omo Ethiopia  search
BTAfrica
 .East Africa
 ..Ethiopia
 ...Omo Ethiopia
SNVillage in SW Ethiopia.
Omo Group  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Omo Group
RTPliocene
 Pleistocene
 Ethiopia
 Kenya
 Shungura Formation
SNIndexed with ages as applicable. Added to Thesaurus in 1989.
Omo River  search
BTAfrica
 .East Africa
 ..Ethiopia
 ...Omo River
SNFlows through SW Ethiopia into Lake Turkana (Lake Rudolph).
Omo Valley  search
BTAfrica
 .East Africa
 ..Ethiopia
 ...Omo Valley
SNRiver valley in SW Ethiopia.
Omolon Block  search
BTCommonwealth of Independent States
 .Russian Federation
 ..Omolon Block
BTAsia
 .Omolon Block
RTSiberia
SNNE Siberia in the Omolon River basin. Before 1978, also search Omolon. Also search Omolon Massif if applicable. This term has multiple hierarchies.
Omolon River  search
BTCommonwealth of Independent States
 .Russian Federation
 ..Omolon River
BTAsia
 .Omolon River
RTYakutia Russian Federation
 Khabarovsk Russian Federation
 Magadan Russian Federation
SNRiver in N Khabarovsk Kray, W Chukchi National Okrug, and NE Yakutia which flows into the Kolyma River in NE Siberia. Also search Omolon. This term has multiple hierarchies.
Omomyidae  search
BTChordata
 .Vertebrata
 ..Tetrapoda
 ...Mammalia
 ....Theria
 .....Eutheria
 ......Primates
 .......Prosimii
 ........Omomyidae
SNFamily.
omphacite  search
BTsilicates
 .chain silicates
 ..pyroxene group
 ...clinopyroxene
 ....omphacite
RTaugite
Omsk Russian Federation  search
BTCommonwealth of Independent States
 .Russian Federation
 ..Omsk Russian Federation
BTAsia
 .Omsk Russian Federation
SNOblast and city in SW Siberia. Before 1993, Omsk Russian Republic was also used. This term has multiple hierarchies.
Omulevka River  search
BTCommonwealth of Independent States
 .Russian Federation
 ..Magadan Russian Federation
 ...Omulevka River
SNRiver in N Magadan Oblast in NE Siberia. Also search Omulevka. This term has multiple hierarchies.
on Uplift#Bigfork Chert#Bloyd Formation#Boggy Shale#Boone Formation#Bossier Form  search
On-take  search
USEOntake
Onaping Formation  search
BTronian
 .Onaping Formation
RTCanada
 Ontario
SNOf the Whitewater Group.
oncolites  search
BTsedimentary structures
 .biogenic structures
 ..oncolites
one-dimensional models  search
RTfour-dimensional models
 mathematical models
 models
 three-dimensional models
 two-dimensional models
SNBefore 1978, search one dimensional; one-dimensional AND models.
Onega Russian Federation  search
BTCommonwealth of Independent States
 .Russian Federation
 ..Arkhangelsk Russian Federation
 ...Onega Russian Federation
RTLake Onega
SNCity on Onega Bay at mouth of Onega River in NW Arkhangelsk Oblast in NW European Russian Federation. Before 1993, Onega Russian Republic was also used. This term has multiple hierarchies.
Oneida County Idaho  search
BTUnited States
 .Idaho
 ..Oneida County Idaho
RTBannock Range
SNSE Idaho.
Oneida County New York  search
BTUnited States
 .New York
 ..Oneida County New York
RTOneida Lake
SNCentral New York.
Oneida County Wisconsin  search
BTUnited States
 .Wisconsin
 ..Oneida County Wisconsin
SNN Wisconsin.
Oneida Lake  search
BTUnited States
 .New York
 ..Oneida Lake
RTMadison County New York
 Oneida County New York
 Onondaga County New York
 Oswego County New York
SNSE of Lake Ontario in central New York, bounded by Oswego, Oneida, Madison and Onondaga counties. Indexed with counties as applicable.
Oneota Dolomite  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Ordovician
 ....Lower Ordovician
 .....Oneota Dolomite
RTIowa
 Illinois
 Indiana
 Wisconsin
 Minnesota
 Michigan
 Prairie du Chien Group
SNIn Prairie du Chien Group. NW Illinois, Indiana, NW Iowa, Michigan, S Minnesota, and SW Wisconsin. Added to Thesaurus in 1995.
Onikobe Field  search
BTnshu
 .Iwate Japan
 ..Onikobe Field
RTgeothermal fields
SNGeothermal field. N Honshu.
onofrite  search
BTsulfides
 .onofrite
BTselenites
 .onofrite
RTselenium
 metacinnabar
SNThis term has multiple hierarchies.
Onondaga County New York  search
BTUnited States
 .New York
 ..Onondaga County New York
NTOnondaga Lake
 Syracuse New York
RTOneida Lake
SNCentral New York.
Onondaga Lake  search
BTUnited States
 .New York
 ..Onondaga County New York
 ...Onondaga Lake
BTUnited States
 .New York
 ..Finger Lakes
 ...Onondaga Lake
SNOne of the Finger Lakes in W central New York. This term has multiple hierarchies. Added to Thesaurus in 1989.
Onondaga Limestone  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Devonian
 ....Middle Devonian
 .....Onondaga Limestone
RTVirginia
 Pennsylvania
 New York
 Maryland
 West Virginia
 Hamilton Group
 Tioga Bentonite
SNIncludes Springfield Center Member, Babcock Hill Member, Edgecliff Member, Nedrow Member, Moorehouse Member, Seneca Member, Needmore Shale, Selinsgrove Limestone. W Maryland, New York, Pennsylvania, Western Virginia, and N West Virginia.
onshore  search
RTexploration
 natural gas
 offshore
 petroleum
 production
SNTerm reintroduced in 1985. Not a valid GeoRef term from 1981-1984. To be used for petroleum and natural gas. Added to Thesaurus in 1985.
Onslow Bay  search
BTUnited States
 .North Carolina
 ..Onslow Bay
SNBetween Cape Lookout and Cape Fear off SE coast of North Carolina.
Onslow County North Carolina  search
BTUnited States
 .North Carolina
 ..Onslow County North Carolina
SNE North Carolina.
Ontake  search
BTnshu
 .Ontake
UFMount Ontake
 Mt. Ontake
 On-take
 Ontake Volcano
RTAira Caldera
 Kagoshima Japan
 Sakura-jima
 Nagano Japan
 volcanoes
 Kyushu
 Gifu Japan
 Nagano earthquake 1984
SNA volcano on the border between Gifu and Nagano prefectures in central Honshu. Before 1993 was also used for a volcano (also called Sakura-jima) on the peninsula of Sakura-jima in Kagoshima Bay, S Kyushu. See Sakura-jima for the volcano on Kyushu. Indexed
Ontake Volcano  search
USEOntake
Ontario  search
BTCanada
 .Eastern Canada
 ..Ontario
NTAlgoma District Ontario
 Batchawana Bay
 Brant County Ontario
 Bruce County Ontario
 Bruce Peninsula
 Callander Bay
 Chalk River
 Cochrane District Ontario
 Coldwell Complex
 Dufferin County Ontario
 Dundas County Ontario
 Elgin County Ontario
 Essex County Ontario
 Eye-Dashwa Lakes Pluton
 Flack Lake
 Frontenac County Ontario
 Glengarry County Ontario
 Gowganda Ontario
 Grenville County Ontario
 Grey County Ontario
 Haliburton County Ontario
 Hamilton Ontario
 Hastings County Ontario
 Hemlo Deposit
 Huron County Ontario
 Kakagi Lake
 Kenora District Ontario
 Kent County Ontario
 Lambton County Ontario
 Lanark County Ontario
 Larder Lake District Ontario
 Leeds County Ontario
 Lennox and Addington County Ontario
 Manitoulin District Ontario
 Michipicoten Island
 Middlesex County Ontario
 Moose River basin
 Muskoka District Ontario
 Nipissing District Ontario
 Northumberland County Ontario
 Ottawa Ontario
 Oxford County Ontario
 Parry Sound District Ontario
 Perth County Ontario
 Peterborough County Ontario
 Prescott County Ontario
 Prince Edward County Ontario
 Rainy River District Ontario
 Renfrew County Ontario
 Russell County Ontario
 Saint Catharines Ontario
 Simcoe County Ontario
 Stormont County Ontario
 Strathcona Mine
 Sudbury Basin
 Sudbury District Ontario
 Sudbury Irruptive
 Sudbury Structure
 Temagami Mine
 Thunder Bay
 Thunder Bay District Ontario
 Timiskaming District Ontario
 Toronto Ontario
 Victoria County Ontario
 Welland Canal
 Wellington County Ontario
 Whetstone Lake
RTAbitibi Belt
 Blake River Group
 Canadian Shield
 Appalachian Basin
 Animikie Group
 Bass Islands Dolomite
 Beaver River
 Beekmantown Group
 Blue Mountain
 BRIM
 Central Gneiss Belt
 Central Metasedimentary Belt
 Champlain Sea
 Chelmsford Formation
 Cherry Canyon Forma
Ontario County New York  search
BTUnited States
 .New York
 ..Ontario County New York
Ontario Geological Survey  search
BTgovernment agencies
 .survey organizations
 ..Ontario Geological Survey
UFOGS
RTOntario
SNFormerly Ontario Department of Mines. Added to Thesaurus in 1985.
ontogeny  search
RTbiologic evolution
 diachronism
 fossils
 growth rates
 juvenile taxa
 larvae
 maturity
 paleoindian
 paleontology
 phenotypes
 phylogeny
Ontonagon County Michigan  search
BTUnited States
 .Michigan
 ..Michigan Upper Peninsula
 ...Ontonagon County Michigan
NTWhite Pine Michigan
RTPorcupine Mountains
 White Pine Mine
SNNW Michigan Upper Peninsula, NW Michigan.
Ontong Java Plateau  search
BTPacific Ocean
 .West Pacific
 ..Ontong Java Plateau
UFAntong Java Rise
 Ontong Java Rise
RTLeg 30
 DSDP Site 288
 DSDP Site 289
 Leg 89
 DSDP Site 586
 Leg 130
 ODP Site 803
 ODP Site 804
 ODP Site 805
 ODP Site 806
 ODP Site 807
SNBetween Solomon Islands on the W and Lord Howe Islands (Ontong Java Islands) on the E.
Ontong Java Rise  search
USEOntong Java Plateau
onvarovite  search
USEuvarovite
Onverwacht Group  search
BTChronostratigraphic Units
 .Precambrian
 ..Onverwacht Group
RTBarberton greenstone belt
 South Africa
onyx  search
BTsilicates
 .framework silicates
 ..silica minerals
 ...onyx
RTchalcedony
 gems
onyx marble  search
USEalabaster
ooids  search
USEoolite
oolite  search
UFeggstone
 ooids
 ooliths
 roestone
RTsedimentary rocks
 limestone
 allochems
 carbonate rocks
 carbonate sediments
 oolitic texture
 oolitic limestone
 pellets
ooliths  search
USEoolite
oolitic limestone  search
BTsedimentary rocks
 .carbonate rocks
 ..limestone
 ...oolitic limestone
RToolite
oolitic texture  search
BTtextures
 .oolitic texture
RTsedimentary rocks
 limestone
 oolite
 sediments
SNBefore 1978, also search oolitic.
ooze  search
BTsediments
 .clastic sediments
 ..ooze
RTsapropel
 calcareous composition
 mud
opal  search
BTsilicates
 .framework silicates
 ..silica minerals
 ...opal
NTopal-A
 opal-CT
UFopaline
RTfloatstone
 hyalite
opal A  search
USEopal-A
opal-A  search
BTsilicates
 .framework silicates
 ..silica minerals
 ...opal
 ....opal-A
UFopal A
RTamorphous materials
 opal-CT
SNAmorphous, biogenic opal.
opal-CT  search
BTsilicates
 .framework silicates
 ..silica minerals
 ...opal
 ....opal-CT
RTopal-A
 cristobalite
 tridymite
opaline  search
USEopal
opaque minerals  search
RTlight minerals
 minerals
Opeche Shale  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Permian
 ....Lower Permian
 .....Opeche Shale
RTWyoming
 Montana
 Nevada
 South Dakota
SNSE Montana, NW Nevada, W South Dakota and Wyoming. Added to Thesaurus in 1989.
Opemisca Group  search
BTChronostratigraphic Units
 .Precambrian
 ..Archean
 ...Opemisca Group
RTQuebec
SNAdded to Thesaurus in 1989.
open cast mining  search
USEopen-pit mining
open cut mining  search
USEopen-pit mining
open fractures  search
BTfractures
 .open fractures
RTcracks
SNBefore 1978, also search fractures AND open.
open pit mines  search
USEopen-pit mining
open pit mining  search
USEopen-pit mining
open systems  search
RTclosed systems
 systems
SNUsed as a general term.
open-file reports  search
SNNot a valid GeoRef index term after 1970. See report; annual report; USGS.
open-pit mining  search
BTmining
 .surface mining
 ..open-pit mining
UFmining, open-pit
 open cast mining
 open cut mining
 open pit mines
 open pit mining
 opencast mining
 opencut mining
RTmines
 mining geology
 strip mining
 pits
 quarries
opencast mining  search
USEopen-pit mining
opencut mining  search
USEopen-pit mining
Operculina  search
BTInvertebrata
 .Protista
 ..Foraminifera
 ...Rotaliina
 ....Rotaliacea
 .....Nummulitidae
 ......Nummulites
 .......Operculina
RTmicrofossils
SNIndexed with microfossils if applicable.
ophicalcite  search
BTmetamorphic rocks
 .marbles
 ..ophicalcite
RTlimestone
Ophidia  search
USESerpentes
Ophiocistioidea  search
BTInvertebrata
 .Echinodermata
 ..Echinozoa
 ...Ophiocistioidea
ophiolite  search
UFmeta-ophiolite
RTigneous rocks
 metamorphic rocks
 ultramafics
 mafic composition
SNGroup of mafic and ultramafic igneous rocks with a broad compositional range, including rocks rich in serpentinite, chlorite, epidote and albite derived from them later by metamorphism. Before 1993, ultramafics was a broader term. As of 1993, this term is
ophiolite complexes  search
RTcomplexes
 lithosphere
 oceanic crust
 plate tectonics
 sheeted dikes
 tectonics
SNSequence of rock types consisting of deep-sea sediments lying above basaltic pillow lavas, dikes, gabbro, and ultramafic peridotite. They are considered to be fragments of oceanic lithosphere that were tectonically transported to continental margins and i
Ophiomorpha  search
BTInvertebrata
 .Arthropoda
 ..Mandibulata
 ...Crustacea
 ....Malacostraca
 .....Ophiomorpha
NTOphiomorpha nodosa
RTichnofossils
Ophiomorpha nodosa  search
BTInvertebrata
 .Arthropoda
 ..Mandibulata
 ...Crustacea
 ....Malacostraca
 .....Ophiomorpha
 ......Ophiomorpha nodosa
RTichnofossils
ophite  search
RTdiabase
 igneous rocks
 marbles
 metamorphic rocks
SNTerm may be used with marbles and also with diabase. Indexed with marbles or diabase as applicable.
Ophiuroidea  search
BTInvertebrata
 .Echinodermata
 ..Asterozoa
 ...Stelleroidea
 ....Ophiuroidea
Ophthalmidium  search
BTInvertebrata
 .Protista
 ..Foraminifera
 ...Miliolina
 ....Miliolacea
 .....Ophthalmidium
RTmicrofossils
SNGenus. Indexed with microfossils if applicable.
Opole Poland  search
BTEurope
 .Central Europe
 ..Poland
 ...Opole Poland
RTPolish Sudeten Mountains
SNProvince and city in S Poland.
opti  search
optical  search
SNA valid term through 1977. After 1977, use optical spectroscopy, optical spectra, optical properties, optical mineralogy or (as of 1981) optical dispersion or optical extinction as applicable.
optical dispersion  search
RTbackscattering
 optical properties
 refractive index
SNAdded to Thesaurus in 1981.
optical extinction  search
RTextinction
 optical properties
 undulatory extinction
SNBefore 1981, also search extinction AND minerals. Added to Thesaurus in 1981.
optical methods  search
SNAs of 1981, no longer a valid term for GeoRef. See microscope methods.
optical mineralogy  search
RTgeochronology
 goniometry
 microscope methods
 mineralogy
 ore microscopy
 relative age
optical properties  search
RTbirefringence
 brightness
 color centers
 crystal field
 fluorescence
 isotropy
 mineralogy
 minerals
 optical dispersion
 optical extinction
 pleochroism
 polarization
 properties
 refractive index
 wave dispersion
optical radar methods  search
USElidar methods
optical spectra  search
BTspectra
 .optical spectra
RTspectroscopy
 optical spectroscopy
SNUsed for data. For methodology, use optical spectroscopy. Before 1978, search optical AND spectroscopy.
optical spectroscopy  search
BTspectroscopy
 .optical spectroscopy
RTchemical analysis
 analysis
 optical spectra
SNBefore 1978, also search optical AND spectroscopy.
optimal filters  search
RTfilters
SNAdded to Thesaurus in 1981.
optimization  search
RTbeneficiation
 methods
 production
 quality control
SNUsed as a general term.
Oquirrh Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Oquirrh Formation
RTPennsylvanian
 Lower Permian
 Idaho
 Utah
SNSE Idaho and N central Utah. Indexed with ages as applicable. Added to Thesaurus in 1985.
Oquirrh Mountains  search
BTUnited States
 .Utah
 ..Oquirrh Mountains
SNS of Great Salt Lake.
Or  search
Oran  search
SNNo longer a valid term for GeoRef. Valid 1978-1981. As of 1982, see Oran region for the department of French Algeria. As of 1993, see Oran Algeria for the department.
Oran Algeria  search
BTAfrica
 .North Africa
 ..Algeria
 ...Oran Algeria
NTDescartes Algeria
SNDepartment. NW coast. Before 1993, also search Oran region.
Oran region  search
SNNo longer a valid term for GeoRef. Used as large department of French Algeria. As of 1993, see Algeria for departments.
Orange County California  search
BTUnited States
 .California
 ..Orange County California
NTSanta Ana California
RTSan Jacinto Fault
 San Pedro Bay
 Newport Bay
 Santa Ana Mountains
 Santa Ana River
SNS California.
Orange County Florida  search
BTUnited States
 .Florida
 ..Orange County Florida
SNCentral Florida.
Orange County Indiana  search
BTIndiana
 .Orange County Indiana
SNS Indiana.
Orange County New York  search
BTUnited States
 .New York
 ..Orange County New York
NTPort Jervis New York
SNSE New York.
Orange County North Carolina  search
BTUnited States
 .North Carolina
 ..Orange County North Carolina
SNN central North Carolina.
Orange County Texas  search
BTUnited States
 .Texas
 ..Orange County Texas
RTSabine Lake
SNSE Texas.
Orange County Vermont  search
BTUnited States
 .Vermont
 ..Orange County Vermont
SNCentral and E Vermont.
Orange County Virginia  search
BTUnited States
 .Virginia
 ..Orange County Virginia
SNN central Virginia.
Orange Free State South Africa  search
USEFree State South Africa
orange material  search
RTMoon
Orange River  search
BTAfrica
 .Southern Africa
 ..Orange River
RTNamibia
 Cape Province region
 Northern Cape Province South Africa
 Eastern Cape Province South Africa
 Free State South Africa
 Lesotho
SNRises in the Drakensberg Range in Lesotho and flows W into the Pacific Ocean. Indexed with Namibia, Lesotho and provinces of South Africa.
Orangeburg County South Carolina  search
BTUnited States
 .South Carolina
 ..Orangeburg County South Carolina
Orava Valley  search
BTEurope
 .Central Europe
 ..Slovakia
 ...Orava Valley
SNRiver valley in N Slovakia. Also search Orava.
orbicular texture  search
BTtextures
 .orbicular texture
RTspherulites
SNBefore 1978, search orbicular AND texture.
orbit  search
USEorbits
orbital forcing  search
UFclimatic orbital forcing
 Milankovitch forcing
RTsedimentation
 climate
 paleoclimatology
 paleo-oceanography
 climate effects
 climatic controls
 cyclic processes
 periodicity
 Milankovitch theory
SNAlso search Milankovitch theory if applicable. Added to Thesaurus in 1998.
orbital motion  search
USEorbits
orbital observations  search
RTobservations
 orbits
 remote sensing
 satellite methods
SNBefore 1978, search observations AND orbital.
Orbitoidacea  search
BTInvertebrata
 .Protista
 ..Foraminifera
 ...Rotaliina
 ....Orbitoidacea
NTAmphistegina
 Asterocyclina
 Cibicides
 Discocyclina
 Lepidocyclina
 Nephrolepidina
 Orbitoididae
RTmicrofossils
SNIndexed with microfossils if applicable.
Orbitoidae  search
USEOrbitoididae
Orbitoididae  search
BTInvertebrata
 .Protista
 ..Foraminifera
 ...Rotaliina
 ....Orbitoidacea
 .....Orbitoididae
UFOrbitoidae
RTmicrofossils
SNIndexed with microfossils if applicable.
Orbitolina  search
BTInvertebrata
 .Protista
 ..Foraminifera
 ...Textulariina
 ....Lituolacea
 .....Orbitolinidae
 ......Orbitolina
RTmicrofossils
SNGenus. Indexed with microfossils if applicable.
Orbitolinidae  search
BTInvertebrata
 .Protista
 ..Foraminifera
 ...Textulariina
 ....Lituolacea
 .....Orbitolinidae
NTOrbitolina
RTmicrofossils
SNFamily. Indexed with microfossils if applicable.
orbits  search
UForbit
 orbital motion
 planetary orbits
RTmotions
 planetology
 extraterrestrial geology
 satellite methods
 orbital observations
Orbulina  search
BTInvertebrata
 .Protista
 ..Foraminifera
 ...Rotaliina
 ....Globigerinacea
 .....Globigerinidae
 ......Orbulina
NTOrbulina universa
RTmicrofossils
SNGenus. Indexed with microfossils if applicable.
Orbulina universa  search
BTInvertebrata
 .Protista
 ..Foraminifera
 ...Rotaliina
 ....Globigerinacea
 .....Globigerinidae
 ......Orbulina
 .......Orbulina universa
RTmicrofossils
SNSpecies. Indexed with microfossils if applicable.
Orca Basin  search
BTAtlantic Ocean
 .North Atlantic
 ..Gulf of Mexico
 ...Orca Basin
RTDSDP Site 618
SNDepression on the continental slope of the N central Gulf of Mexico, containing brines. Added to Thesaurus in 1981.
Orca Group  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Paleogene
 ....Orca Group
RTPaleocene
 Eocene
 Alaska
SNS central Alaska. Indexed with ages as applicable. Added to Thesaurus in 1989.
Orcadian Basin  search
BTAtlantic Ocean
 .North Atlantic
 ..North Sea
 ...Orcadian Basin
RTScotland
 Orkney Islands
SNOffshore NE Scotland, in the North Sea. Added to Thesaurus in 1989.
order-disorder  search
RTamorphous materials
 bonding
 crystal chemistry
 substitution
ordinary chondrites  search
BTmeteorites
 .stony meteorites
 ..chondrites
 ...ordinary chondrites
RTenstatite chondrites
 carbonaceous chondrites
SNAdded to Thesaurus in 1985.
Ordos Basin  search
BTAsia
 .Far East
 ..China
 ...Ordos Basin
UFEerduosi Basin
 Erduos Basin
RTInner Mongolia China
 Shanxi China
 Gansu China
 Ningxia China
 Shaanxi China
SNNE central China. Before 1995, also search Eerduos Basin. Added to Thesaurus in 1989.
Ordovician  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Ordovician
NTLower Ordovician
 Middle Ordovician
 Upper Ordovician
 Antelope Valley Limestone
 Bala
 Betts Cove Ophiolite
 Borrowdale Volcanic Series
 Buchans Group
 Catoche Formation
 Chickamauga Group
 Clays Ferry Formation
 Davidsville Group
 Ely Springs Dolomite
 Eureka Quartzite
 Gander Lake Group
 Gull River Formation
 Ledbetter Slate
 Lushs Bight Group
 Martinsburg Formation
 Meguma Group
 Montoya Group
 Pogonip Group
 Shap Granite
 Skiddaw Slates
 Tetagouche Group
 Valmy Formation
 Vinini Formation
 Viola Limestone
 Viruan
 Womble Shale
RTBowers Supergroup
 Ellis Bay Formation
 Berwick Formation
 Merrimack Group
 Collier Shale
 Cow Head Group
 Delamerian Orogeny
 Elberton Granite
 Henderson Gneiss
 New York City Group
 Hanson Creek Formation
 Lincolnshire Limestone
 Kittery Formation
 Penobscot Formati
SNAfter the Cambrian, before the Silurian.
Ordubad Azerbaijan  search
BTEurope
 .Azerbaijan
 ..Nakhichevan Azerbaijan
 ...Ordubad Azerbaijan
SNCity in Nakhichevan Autonomous Soviet Socialist Republic (W enclave of Azerbaijan). This term has multiple hierarchies.
ore bodies  search
UFbodies, ore
RTmineral deposits, genesis
 metal ores
 blind deposits
 chimneys
 size
ore deposits  search
SNAs of 1981, no longer a valid term for GeoRef. Before 1981, included use for all papers on metal commodities. Was sometimes used in combination with origin (i.e. ore deposits, origin). Now use metal ores; mineral deposits, genesis; mineral resources or sp
ore exploration  search
USEmineral exploration
ore finding  search
SNNot a valid index term for GeoRef. See mineral exploration.
ore grade  search
RTcutoff grade
 economic geology
 evaluation
 grade
 metal ores
 mineral economics
 mineral exploration
 production
 productive capacity
 reserves
 tonnage
SNAdded to Thesaurus in 1985.
ore guides  search
UFguides, ore
RTmetal ores
 mineral exploration
 gossan
ore microscopy  search
UFmicroscopy, ore
 mineragraphy
RTmetal ores
 microscope methods
 mineralogy
 optical mineralogy
 universal stage
ore minerals  search
RTeconomic geology
 metal ores
 metals
 minerals
 ore-forming fluids
 platinum minerals
 uranium minerals
ore of sedimentation  search
USEplacers
ore reflectivity  search
RTmetal ores
 mineral deposits, genesis
 reflectance
SNBefore 1982, reflectivity was used for this term. Added to Thesaurus in 1982.
ore rolls  search
USEroll-type deposits
ore sources  search
SNAs of 1981, no longer a valid term for GeoRef. See mineral deposits, genesis.
ore transport  search
SNNo longer a valid term for GeoRef. As of 1995, see mineral deposits, genesis for specific natural processes and controls involved, e.g. epigene processes, ore-forming fluids. Before 1978, ore deposits AND transport was used.
ore-forming fluids  search
UFfluids, ore-forming
RTmineral deposits, genesis
 hydrothermal alteration
 mineralization
 ore minerals
SNBefore 1981, also search mineralizers; hydrothermal solutions; hydrothermal fluids.
Oread Limestone  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Carboniferous
 ....Pennsylvanian
 .....Upper Pennsylvanian
 ......Virgilian
 .......Oread Limestone
RTIowa
 Missouri
 Oklahoma
 Nebraska
 Kansas
 Shawnee Group
 Plattsmouth Limestone Member
SNIn Shawnee Group. Includes Toronto Limestone, Snyderville Shale, Leavenworth Limestone, Heebner Shale, Plattsmouth Limestone, Heumader Shale, Kereford Limestone members. SW Iowa, E Kansas, NW Missouri, SE Nebraska, and N Oklahoma.
orebodies, hidden  search
USEblind deposits
Orebro Sweden  search
BTEurope
 .Western Europe
 ..Scandinavia
 ...Sweden
 ....Orebro Sweden
NTStripa region
UFOerebro Sweden
RTBergslagen
SNCounty and city in S central Sweden.
Oregon  search
BTUnited States
 .Oregon
NTBaker County Oregon
 Benton County Oregon
 Brothers fault zone
 Clackamas County Oregon
 Clatsop County Oregon
 Columbia County Oregon
 Coos County Oregon
 Crook County Oregon
 Curry County Oregon
 Deschutes County Oregon
 Douglas County Oregon
 Gilliam County Oregon
 Grant County Oregon
 Harney County Oregon
 Hood River County Oregon
 Jackson County Oregon
 Jefferson County Oregon
 Josephine County Oregon
 Klamath County Oregon
 Lake County Oregon
 Lane County Oregon
 Lincoln County Oregon
 Linn County Oregon
 Malheur County Oregon
 Marion County Oregon
 Morrow County Oregon
 Mount Hood
 Multnomah County Oregon
 Polk County Oregon
 Rogue River
 Sherman County Oregon
 Tillamook County Oregon
 Umatilla County Oregon
 Union County Oregon
 Wallowa County Oregon
 Wallowa Mountains
 Wasco County Oregon
 Washington County Oregon
 Wheeler County Oregon
 Willamette River
 Willamette Valley
 Yamhill County Oregon
RTAstoria
Oregon County Missouri  search
BTUnited States
 .Missouri
 ..Oregon County Missouri
Orenburg Russian Federation  search
BTCommonwealth of Independent States
 .Russian Federation
 ..Orenburg Russian Federation
BTEurope
 .Orenburg Russian Federation
NTBlyava
 Orsk Russian Federation
 Romashkino Field
 Sakmara Russian Federation
UFChkalov Russian Federation
RTUral region
 Sakmara Zone
SNOblast and city in the Southern Urals in European Russian Federation. Before 1993, also search Chkalov Russian Republic. This term has multiple hierarchies. Indexed with Europe if applicable.
Orense City Spain  search
BTEurope
 .Southern Europe
 ..Iberian Peninsula
 ...Spain
 ....Galicia Spain
 .....Orense Spain
 ......Orense City Spain
SNRefers to only the city in NW Spain. Before 1993, also search Orense Spain.
Orense Spain  search
BTEurope
 .Southern Europe
 ..Iberian Peninsula
 ...Spain
 ....Galicia Spain
 .....Orense Spain
NTOrense City Spain
SNRefers only to the province in NW Spain. From 1981-1992, also search Orense Province and Spain. For the city, see Orense City Spain.
ores  search
SNNot a valid term for GeoRef. Use specific commodity terms (see list C) or mineral resources or mineral deposits, genesis.
ores in sedimentary rocks  search
SNA valid term through 1973. Use sedimentary rocks or sedimentation in conjunction with the individual ore (list C).
ores, polymetallic  search
USEpolymetallic ores
Oresund  search
BTAtlantic Ocean
 .North Atlantic
 ..Oresund
RTBaltic Sea
 Sweden
 Denmark
 Kattegat
SNStrait connecting the Kattegat with the Baltic Sea. Indexed with Kattegat and/or Baltic Sea as applicable.
organic  search
SNA valid term through 1977. As of 1998, use organic compounds if applicable.
organic acids  search
BTorganic compounds
 .organic acids
NTamino acids
 carboxylic acids
 fatty acids
 fulvic acids
 humic acids
RTacids
 DNA
 inorganic acids
 RNA
 ketones
SNMay be used for groups of several organic acids or when more specific term is not known. Added to Thesaurus in 1981.
organic carbon  search
BTcarbon
 .organic carbon
RTorganic compounds
 total organic carbon
 carbon cycle
SNAlso search organic compounds AND carbon.
organic compounds  search
NTacetate
 alcohols
 carbohydrates
 chlorophenols
 dioxins
 esters
 fullerenes
 halogenated hydrocarbons
 humates
 hydrocarbons
 isoprenoids
 ketones
 lignin
 organic acids
 peptides
 phenols
 pigments
 proteins
 sapropel
 sporopollenin
 steroids
 total organic carbon
 volatile organic compounds
RTanthraxolite
 asphalt
 biochemistry
 biomarkers
 bitumens
 carbon
 carbonaceous composition
 caustobiolith
 chelation
 chitin
 clathrates
 coal
 color alteration index
 complexing
 compounds
 creosote
 crude oil
 epimerization
 gas sands
 gasoline
 gilsonite
 grahamite
 humic
SNCompounds may be naturally occurring or manufactured. For economic deposits, use petroleum, coal or other appropriate commodity terms in list C. For minerals, use organic minerals. See sedimentary rocks or sediments for discussions of their organic compos
organic materials  search
SNNo longer a valid term for GeoRef. Was used for discussions of naturally occurring organic materials before 1998. Now use organic compounds. For economic deposits, use petroleum, coal or other appropriate commodity terms in list C. For minerals, search or
organic minerals  search
NTamber
 ozocerite
RTgilsonite
 grahamite
 organic compounds
 porphyrins
organic mound  search
USEbioherms
organic nitrogen  search
BTnitrogen
 .organic nitrogen
RTorganic compounds
SNAlso search organic compounds AND nitrogen.
organic residues  search
SNNo longer a valid term for GeoRef. As of 1998, see sediments or sedimentary rocks. From 1978-1997, this term was used in hierarchies with both sediments and sedimentary rocks. From 1981-1992, macerals was used as a narrower term. Before 1981, organic sedi
organic sediments  search
SNAs of 1981, no longer a valid term for GeoRef. Use sediments. Term was introduced in 1976.
organic sulfur  search
BTsulfur
 .organic sulfur
RTorganic compounds
SNBefore 1998, also search organic compounds AND sulfur. Added to Thesaurus in 1993.
organisms  search
USEbiota
organization  search
RTacademic institutions
 associations
 government agencies
 museums
 survey organizations
 symposia
organo-metallic complexes  search
USEorgano-metallics
organo-metallic compounds  search
USEorgano-metallics
organo-metallics  search
UForgano-metallic complexes
 organo-metallic compounds
RTgeochemistry
 organic compounds
 porphyrins
 ligands
 methylmercury
SNAdded to Thesaurus in 1981.
Orgon III  search
RTAtlantic Ocean
 expeditions
 marine geology
 marine sediments
 oceanography
SNOceanographic expedition. Added to Thesaurus in 1985.
Orgueil Meteorite  search
BTmeteorites
 .stony meteorites
 ..chondrites
 ...carbonaceous chondrites
 ....Orgueil Meteorite
UFMontauban Meteorite
RTFrance
 Tarn-et-Garonne France
SNBefore 1981, also search Montauban AND meteorites; Orgueil AND meteorites. Added to Thesaurus in 1981.
orientation  search
RTdip
 discordant folds
 drag folds
 fabric
 faults
 folds
 horizontal orientation
 inclined folds
 linear orientation
 lineation
 nappes
 navigation
 oblique orientation
 overturned folds
 petrofabrics
 plunging folds
 preferred orientation
 recumbent folds
 schistosity
 str
SNIncludes use as attitude of fold elements with respect to external coordinates.
Oriente  search
SNNo longer a valid term for GeoRef. See Santiago de Cuba.
Oriente Cuba  search
USESantiago de Cuba
origin  search
SNA valid index term through 1977 used in combination with life. Before 1971, was used sometimes used alone or in combination with ore deposits or mineral deposits (i.e. ore deposits, origin; mineral deposits, origin). Also see provenance or genesis or pedo
Orin  search
Orinoco Basin  search
USEOrinoco River basin
Orinoco Belt  search
BTSouth America
 .Venezuela
 ..Orinoco Belt
RTCerro Negro
SNPetroliferous region in Venezuela. Added to Thesaurus in 1989.
Orinoco Delta  search
BTSouth America
 .Venezuela
 ..Orinoco Delta
UFOrinoco River delta
RTOrinoco River
SNOn Atlantic Ocean in Delta Amacuro Territory, NE Venezuela. Added to Thesaurus in 1989.
Orinoco River  search
BTSouth America
 .Orinoco River
RTColombia
 Venezuela
 Amazonas Brazil
 Amazonas Colombia
 Amazonas Venezuela
 Anzoategui Venezuela
 Bolivar Venezuela
 Orinoco River basin
 Guarico Venezuela
 Monagas Venezuela
 Orinoco Delta
SNRises in the Serra Parima of S Venezuela, flows W across Amazonas, then flows N along the Colombia-Venezuela border, turns E in central Venezuela and empties through a wide delta into the Atlantic Ocean. Also search Orinoco. Indexed with countries as appl
Orinoco River basin  search
BTSouth America
 .Orinoco River basin
UFOrinoco Basin
RTColombia
 Venezuela
 Orinoco River
 Llanos
SNDrainage basin of the Orinoco River. Indexed with countries as applicable. Added to Thesaurus in 1989.
Orinoco River delta  search
USEOrinoco Delta
Oriskany Sandstone  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Devonian
 ....Lower Devonian
 .....Oriskany Sandstone
RTVirginia
 Pennsylvania
 New York
 Maryland
 West Virginia
SNComprises Shriver Chert, and Ridgeley Sandstone Member. W Maryland, New York, Pennsylvania, Western Virginia and E West Virginia.
Orissa India  search
BTAsia
 .Indian Peninsula
 ..India
 ...Orissa India
NTBalasore India
 Bolangir India
 Cuttack India
 Dhenkanal India
 Keonjhar India
 Koraput India
 Mayurbhanj India
 Sambalpur India
 Talchir
 Talchir coal field
RTDeccan Plateau
 Singhbhum Granite
 Singhbhum shear zone
 Gangpur Series
 Kamthi Formation
 Mahanadi Valley
 Rampur coal field
 Talchir Series
SNState on the Bay of Bengal in E India.
Orivesi Finland  search
BTEurope
 .Western Europe
 ..Scandinavia
 ...Finland
 ....Western Finland Province
 .....Orivesi Finland
SNTown, SW central Finland. Before 1998, may also have been used for an administrative region.
Orizaba, Pico de  search
USEPico de Orizaba
Orkney Islands  search
BTEurope
 .Western Europe
 ..United Kingdom
 ...Great Britain
 ....Scotland
 .....Orkney Islands
UFOrkney region Scotland
RTAtlantic Ocean Islands
 South Orkney Islands
 Orcadian Basin
SNArchipelago off NE coast of Scotland.
Orkney region Scotland  search
USEOrkney Islands
Orleans County New York  search
BTUnited States
 .New York
 ..Orleans County New York
Orleans County Vermont  search
BTUnited States
 .Vermont
 ..Orleans County Vermont
Orleans France  search
BTEurope
 .Western Europe
 ..France
 ...Loiret France
 ....Orleans France
SNCity in N central France.
Orleans Parish Louisiana  search
BTUnited States
 .Louisiana
 ..Orleans Parish Louisiana
NTNew Orleans Louisiana
SNSE Louisiana, coextensive with New Orleans.
Orlov Russian Federation  search
BTCommonwealth of Independent States
 .Russian Federation
 ..Orlov Russian Federation
RTVyatka Russian Federation
SNOld name for city of Khalturin just W of Vyatka in Vyatka Oblast of European Russian Federation. May occur in other locations. Before 1993, Orlov Russian Republic was also used. Indexed with oblast as applicable.
ornamental materials  search
RTCarrara Marble
 ceramic materials
 clays
 construction materials
 granite deposits
 jadeite
 limestone deposits
 marble deposits
 materials
 rhodonite
SNMay be used as a commodity term with terms such as granite deposits, limestone deposits, marble deposits and construction materials. Added to Thesaurus in 1982.
ornamentation  search
RTpaleontology
 shells
Orne France  search
BTEurope
 .Western Europe
 ..France
 ...Orne France
NTMortagne France
RTNormandy
 Eure Valley
SNDepartment in NW France.
Ornithischia  search
BTChordata
 .Vertebrata
 ..Tetrapoda
 ...Reptilia
 ....Diapsida
 .....Archosauria
 ......Ornithischia
BTChordata
 .Vertebrata
 ..Tetrapoda
 ...Reptilia
 ....dinosaurs
 .....Ornithischia
NTAnkylosauria
 Ceratopsia
 Ornithopoda
 Stegosaurus
SNOrder. This term has multiple hierarchies.
Ornithopoda  search
BTChordata
 .Vertebrata
 ..Tetrapoda
 ...Reptilia
 ....Diapsida
 .....Archosauria
 ......Ornithischia
 .......Ornithopoda
NTHadrosauridae
SNThis term has multiple hierarchies.
ORNL  search
USEOak Ridge National Laboratory
oroclines  search
BTorogenic belts
 .oroclines
RTtectonics
 plate tectonics
SNOrogenic belts that curve sharply, possibly due to horizontal bending of the crust. Added to Thesaurus in 1989.
Orocopia Schist  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Mesozoic
 ...Orocopia Schist
RTCalifornia
 Arizona
SNS California and SW Arizona. Added to Thesaurus in 1989.
orogenesis  search
USEorogeny
orogenic belts  search
NToroclines
RTclastic wedges
 fold and thrust belts
 fold belts
 foreland basins
 forelands
 geosynclines
 intracontinental belts
 mobile belts
 orogeny
 tectonics
SNAdded to Thesaurus in 1981.
orogeny  search
UForogenesis
 tectogenesis
RTabsolute age
 Acadian Phase
 Antler Orogeny
 Alice Springs Orogeny
 Alleghany Orogeny
 Alpine Orogeny
 Andean Orogeny
 Appalachian Phase
 Cadomian Orogeny
 Assyntic Orogeny
 Asturian Orogeny
 Avalonian Orogeny
 back-arc basins
 Baikalian Phase
 Caledonian Orogeny
 Cimme
SNUsed for discussions of either individual orogenies or detailed general treatments on several orogenies. Before 1974, also search mountain building. Before 1981, also search diastrophism if applicable.
Orogrande Basin  search
BTUnited States
 .Orogrande Basin
RTNew Mexico
 Texas
 Sierra County New Mexico
 Dona Ana County New Mexico
 El Paso County Texas
 Hudspeth County Texas
 Otero County New Mexico
 Socorro County New Mexico
 Lincoln County New Mexico
SNPetroleum-producing region in S New Mexico and W Texas. Indexed with states and counties as applicable. Added to Thesaurus in 1989.
Oronto Group  search
BTChronostratigraphic Units
 .Precambrian
 ..Proterozoic
 ...Oronto Group
RTWisconsin
 Minnesota
 Michigan
 Freda Sandstone
 Nonesuch Shale
SNKeweenawan. Includes Freda Sandstone. Added to Thesaurus in 1989.
Orosei  search
BTMediterranean Sea
 .West Mediterranean
 ..Tyrrhenian Sea
 ...Orosei
RTSardinia Italy
SNGulf of Tyrrhenian Sea. As of 1993, see Orosei Italy for the village.
Orosei Italy  search
BTEurope
 .Southern Europe
 ..Italy
 ...Sardinia Italy
 ....Orosei Italy
SNVillage in Sardinia.
Orosian  search
BTChronostratigraphic Units
 .Precambrian
 ..Proterozoic
 ...Paleoproterozoic
 ....Orosian
Oroville California  search
BTUnited States
 .California
 ..Butte County California
 ...Oroville California
SNCity in N California. Site of August, 1975 earthquake.
Oroville Dam  search
BTUnited States
 .California
 ..Butte County California
 ...Oroville Dam
RTFeather River
SNEarth fill dam on Feather River which forms Oroville Reservoir in Butte County of N central California. Also search (Oroville Reservoir OR reservoirs OR dams) AND Oroville California.
Oroville earthquake 1975  search
BTearthquakes
 .Oroville earthquake 1975
RTCalifornia
 Butte County California
SNButte County, N California. Added to Thesaurus in 1989.
Orozco fracture zone  search
BTPacific Ocean
 .North Pacific
 ..Northeast Pacific
 ...Orozco fracture zone
RTEast Pacific Rise
SNEast Pacific Rise, E Pacific. This term has multiple hierarchies. Added to Thesaurus in 1989.
orpiment  search
BTsulfides
 .orpiment
UFyellow arsenic
Orr Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Cambrian
 ....Upper Cambrian
 .....Orr Formation
RTUtah
SNW Utah. Added to Thesaurus in 1985.
Orsha Belarus  search
BTEurope
 .Belarus
 ..Orsha Belarus
SNCity in Vitebsk Oblast in N Belarus. This term has multiple hierarchies.
Orsk Russian Federation  search
BTCommonwealth of Independent States
 .Russian Federation
 ..Orenburg Russian Federation
 ...Orsk Russian Federation
SNCity in Orenburg Oblast in Southern Urals near the Kazakh border. Before 1993, Orsk Russian Republic was also used. This term has multiple hierarchies.
Ortega Group  search
BTChronostratigraphic Units
 .Precambrian
 ..Proterozoic
 ...Ortega Group
RTNew Mexico
SNN New Mexico. Added to Thesaurus in 1989.
Orthida  search
BTInvertebrata
 .Brachiopoda
 ..Articulata
 ...Orthida
NTEnteletacea
orthite  search
USEallanite
ortho-amphibolite  search
USEorthoamphibolite
orthoamphibole  search
BTsilicates
 .chain silicates
 ..amphibole group
 ...orthoamphibole
NTanthophyllite
 gedrite
 holmquistite
orthoamphibolite  search
BTmetamorphic rocks
 .amphibolites
 ..orthoamphibolite
UFortho-amphibolite
orthoclase  search
BTsilicates
 .framework silicates
 ..feldspar group
 ...alkali feldspar
 ....orthoclase
RTadularia
 K-feldspar
 anorthoclase
 sanidine
orthoenstatite  search
USEenstatite
orthogneiss  search
BTmetamorphic rocks
 .gneisses
 ..orthogneiss
SNAdded to Thesaurus in 1981.
Orthoptera  search
BTInvertebrata
 .Arthropoda
 ..Mandibulata
 ...Insecta
 ....Pterygota
 .....Neoptera
 ......Exopterygota
 .......Orthoptera
RTOrthopteroida
SNOrder. Also search Orthopteroida if applicable.
Orthopteroida  search
BTInvertebrata
 .Arthropoda
 ..Mandibulata
 ...Insecta
 ....Pterygota
 .....Neoptera
 ......Orthopteroida
RTOrthoptera
SNAlso search Orthoptera if applicable.
orthopyroxene  search
BTsilicates
 .chain silicates
 ..pyroxene group
 ...orthopyroxene
NTenstatite
 hypersthene
 protoenstatite
RTorthopyroxenite
orthopyroxenite  search
BTigneous rocks
 .plutonic rocks
 ..ultramafics
 ...orthopyroxenite
RTwebsterite
 pyroxenite
 orthopyroxene
orthoquartzite  search
BTsedimentary rocks
 .clastic rocks
 ..orthoquartzite
UForthoquartzitic sandstone
 sedimentary quartzite
RTsandstone
 terrigenous materials
 ferruginous quartzite
 quartzites
 quartz arenite
orthoquartzitic sandstone  search
USEorthoquartzite
orthorhombic  search
USEorthorhombic system
orthorhombic system  search
BTcrystal systems
 .orthorhombic system
UForthorhombic
RTcrystallography
SNAdded to Thesaurus in 1985.
orthosilicates  search
BTsilicates
 .orthosilicates
NTbritholite
 ellenbergerite
 nesosilicates
 sorosilicates
SNSorosilicates and nesosilicates.
Orulgan Mountains  search
BTCommonwealth of Independent States
 .Russian Federation
 ..Yakutia Russian Federation
 ...Orulgan Mountains
SNExtend N and S, E of Lena River in N central Russian Federation. Before 1978, also search Orulgan. This term has multiple hierarchies.
Oruro Bolivia  search
BTSouth America
 .Bolivia
 ..Oruro Bolivia
SNDepartment and city in W Bolivia on the Chilean border.
os (eskers)  search
USEeskers
Os (osmium)  search
USEosmium
Os-187/Os-186  search
BTisotopes
 .radioactive isotopes
 ..Os-187/Os-186
BTisotopes
 .stable isotopes
 ..Os-187/Os-186
BTmetals
 .platinum group
 ..osmium
 ...Os-187/Os-186
RTisotope ratios
SNThis term has multiple hierarchies.
Os-187/Os-188  search
USEOs-188/Os-187
Os-188/Os-187  search
BTisotopes
 .stable isotopes
 ..Os-188/Os-187
BTmetals
 .platinum group
 ..osmium
 ...Os-188/Os-187
UFOs-187/Os-188
SNThis term has multiple hierarchies.
Os/Re  search
USERe/Os
Osage County Kansas  search
BTUnited States
 .Kansas
 ..Osage County Kansas
SNE Kansas.
Osage County Missouri  search
BTUnited States
 .Missouri
 ..Osage County Missouri
SNCentral Missouri.
Osage County Oklahoma  search
BTUnited States
 .Oklahoma
 ..Osage County Oklahoma
NTPawhuska Rock Plain
SNCoextensive with Osage Indian Reservation in N Oklahoma.
Osagean  search
USEOsagian
Osagian  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Carboniferous
 ....Mississippian
 .....Lower Mississippian
 ......Osagian
NTBurlington Limestone
 Keokuk Limestone
UFOsagean
RTBoone Formation
 Waulsortian facies
 Valmeyeran
SNProvincial series, North America. Above Kinderhookian, below Meramecian.
Osaka Bay  search
BTPacific Ocean
 .North Pacific
 ..Northwest Pacific
 ...Osaka Bay
RTHonshu
 Hyogo Japan
 Inland Sea
 Kobe Japan
 Osaka Japan
SNInlet of Pacific Ocean on S coast of Honshu and E of Awaji Island. Kobe and Osaka are major ports. This term has multiple hierarchies. Added to Thesaurus in 1993.
Osaka Group  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Osaka Group
RTPliocene
 Pleistocene
 Honshu
 Japan
Osaka Japan  search
BTnshu
 .Osaka Japan
NTIbaragi Complex
 Izumi Japan
RTIbaraki Japan
 Nagano City Japan
 Hyogo-ken Nanbu earthquake 1995
 Kinki Japan
 Osaka Bay
SNCity and prefecture in S Honshu.
Osborne County Kansas  search
BTUnited States
 .Kansas
 ..Osborne County Kansas
SNN central Kansas.
Osceola County Florida  search
BTUnited States
 .Florida
 ..Osceola County Florida
Osceola County Iowa  search
BTUnited States
 .Iowa
 ..Osceola County Iowa
Osceola County Michigan  search
BTUnited States
 .Michigan
 ..Michigan Lower Peninsula
 ...Osceola County Michigan
oscillations  search
RTEarth
 free oscillations
 high-level mode
 motions
 resonance
 spheroidal mode
 toroidal mode
 vibration
 vibrators
Oscoda County Michigan  search
BTUnited States
 .Michigan
 ..Michigan Lower Peninsula
 ...Oscoda County Michigan
Osculosida  search
BTInvertebrata
 .Protista
 ..Radiolaria
 ...Osculosida
NTNassellina
 Phaeodarina
RTmicrofossils
SNOrder. Indexed with microfossils if applicable.
Oseberg Field  search
BTAtlantic Ocean
 .North Atlantic
 ..North Sea
 ...Oseberg Field
RToil and gas fields
SNOffshore Norway, NE North Sea.
Osetia  search
USEOssetia
Osgood Mountains  search
BTmboldt County Nevada
 .Osgood Mountains
SNN Nevada. Added to Thesaurus in 1989.
Oshika Peninsula  search
BTnshu
 .Miyagi Japan
 ..Oshika Peninsula
UFOjika Peninsula
SNBetween Ishinomaki Bay and the Pacific Ocean in NE Honshu. Added to Thesaurus in 1993.
Oshima  search
BTAsia
 .Far East
 ..Japan
 ...Kyushu
 ....Kagoshima Japan
 .....Oshima
BTAsia
 .Far East
 ..Japan
 ...Ryukyu Islands
 ....Oshima
NTAmami-O-shima
UFAmami
 Amami Gunto
RTO-shima
 Oshima Peninsula
 Izu-Oshima
SNIsland group, N Ryukyu Islands, Japan. See O-shima and Izu-Oshima for other islands and for the volcano respectively. After 1992, use Oshima Peninsula if applicable to refer to Hokkaido. Use Oshima Japan to refer to the sub-prefecture of Hokkaido. This te
Oshima Peninsula  search
BTkkaido
 .Oshima Peninsula
RTKoma-ga-take
 Amami-O-shima
 Oshima
 O-shima
 Esan Cape
 Hakodate Japan
 Tsugaru Strait
SNN of Hakodate in Oshima and Hiyama sub-prefectures in SW Hokkaido, N Japan.
Osler Series  search
BTChronostratigraphic Units
 .Precambrian
 ..Osler Series
RTCanada
 Ontario
SNSW Ontario.
Oslo Graben  search
BTEurope
 .Western Europe
 ..Scandinavia
 ...Norway
 ....Oslo Graben
SNSE Norway. Added to Thesaurus in 1993.
Oslo Norway  search
BTEurope
 .Western Europe
 ..Scandinavia
 ...Norway
 ....Oslo Norway
SNCounty in SE Norway. Also a city on Oslo Fjord, an inlet of the Skagerrak.
osmium  search
BTmetals
 .platinum group
 ..osmium
NTOs-187/Os-186
 Os-188/Os-187
UFOs (osmium)
RTosmium ores
 Re/Os
SNChemical element. As of 1985, use osmium ores for osmium as a commodity.
osmium ores  search
BTmetal ores
 .osmium ores
RTplatinum ores
 osmium
SNBefore 1985, also search osmium AND (deposit OR deposits OR ore OR ores OR economic) in the basic index. Commodity. See List C.
osmosis  search
RTdiffusion
 electro-osmosis
 hydrochemistry
 geochemistry
 processes
SNAdded to Thesaurus in 1982.
Osnabruck Germany  search
BTEurope
 .Central Europe
 ..Germany
 ...Lower Saxony Germany
 ....Osnabruck Germany
UFOsnabrueck Germany
SNCity in SE Lower Saxony, central Germany.
Osnabrueck Germany  search
USEOsnabruck Germany
Osogovo Mountains  search
BTEurope
 .Southern Europe
 ..Osogovo Mountains
RTCroatia
 Serbia
 Bulgaria
SNAlso search Osogov; Osogovo. Indexed with countries as applicable.
Osor Spain  search
BTEurope
 .Southern Europe
 ..Iberian Peninsula
 ...Spain
 ....Catalonia Spain
 .....Gerona Spain
 ......Osor Spain
SNVillage in NE Spain.
Ossa-Morena Zone  search
BTEurope
 .Southern Europe
 ..Iberian Peninsula
 ...Ossa-Morena Zone
RTSpain
 Portugal
SNTectonostratigraphic unit affected by Cadomian and Hercynian orogenies, SW Iberian Peninsula. Indexed with mountain ranges and/or Portugese districts and/or Spanish regions or provinces as applicable. Added to Thesaurus in 1995.
Ossetia  search
BTEurope
 .Ossetia
NTNorth Ossetia Russian Federation
UFOsetia
RTRussian Federation
 Georgian Republic
 Caucasus
SNRegion of the central Caucasus. Divided into the former North Ossetian ASSR in the Russian Federation and the South Ossetian Autonomous Oblast of the Georgian Republic. Indexed with former Soviet republics as applicable.
Ossipee Mountains  search
BTrroll County New Hampshire
 .Ossipee Mountains
SNIn Carroll County, E New Hampshire.
Ostashkovichi Belarus  search
BTEurope
 .Belarus
 ..Ostashkovichi Belarus
SNVillage in S Belarus. This term has multiple hierarchies.
Osteichthyes  search
BTChordata
 .Vertebrata
 ..Pisces
 ...Osteichthyes
NTActinopterygii
 Brachiopterygii
 Sarcopterygii
RTAcanthodii
SNClass. Acanthodii was a narrower term from 1981-1992.
osteology  search
RTbones
 paleontology
Osteostraci  search
BTChordata
 .Vertebrata
 ..Agnatha
 ...Osteostraci
Ostracoda  search
BTInvertebrata
 .Arthropoda
 ..Mandibulata
 ...Crustacea
 ....Ostracoda
NTArcheocopida
 Beyrichicopina
 Eridostraca
 Kirkbyocopina
 Leperditicopida
 Myodocopida
 Paleocopida
 Podocopida
RTmicrofossils
 plankton
 color alteration index
SNBefore 1998, microfossils was a broader term. Indexed with microfossils if applicable.
Ostracodermi  search
BTChordata
 .Vertebrata
 ..Agnatha
 ...Ostracodermi
Ostrava Czech Republic  search
BTEurope
 .Central Europe
 ..Czech Republic
 ...Moravia
 ....Ostrava Czech Republic
UFMoravska Ostrava
SNCity in N Moravia. Before 1995, Ostrava Czechoslovakia was also used.
Ostrava-Karvina  search
BTEurope
 .Central Europe
 ..Czech Republic
 ...Moravia
 ....Ostrava-Karvina
RTKarvina Czech Republic
SNCoal mining and steel producing region near the Polish border in N Moravia.
Ostrea  search
BTInvertebrata
 .Mollusca
 ..Bivalvia
 ...Ostreacea
 ....Ostreidae
 .....Ostrea
SNGenus.
Ostreacea  search
BTInvertebrata
 .Mollusca
 ..Bivalvia
 ...Ostreacea
NTOstreidae
SNSuperfamily.
Ostreidae  search
BTInvertebrata
 .Mollusca
 ..Bivalvia
 ...Ostreacea
 ....Ostreidae
NTCrassostrea virginica
 Ostrea
SNFamily.
Ostrowiec Poland  search
USEOstrowiec Swietokrzyski Poland
Ostrowiec Swietokrzyski Poland  search
BTEurope
 .Central Europe
 ..Poland
 ...Kielce Poland
 ....Ostrowiec Swietokrzyski Poland
UFOstrowiec Poland
SNCity in NW Kielce, SE central Poland.
Osumi Peninsula  search
BTAsia
 .Far East
 ..Japan
 ...Kyushu
 ....Kagoshima Japan
 .....Osumi Peninsula
RTSakura-jima
SNBetween Kagoshima Bay and Osumi Strait in S Kyushu, S Japan.
osumilite  search
BTsilicates
 .ring silicates
 ..osumilite
RTaluminosilicates
Oswego County New York  search
BTUnited States
 .New York
 ..Oswego County New York
RTOneida Lake
SNN central New York.
Otago  search
Otago New Zealand  search
BTAustralasia
 .New Zealand
 ..Otago New Zealand
NTDunedin New Zealand
 Kakanui
 Oamaru New Zealand
 Otago Peninsula
RTSouth Island
SNProvincial district in S South Island. Also index South Island.
Otago Peninsula  search
BTAustralasia
 .New Zealand
 ..Otago New Zealand
 ...Otago Peninsula
RTSouth Island
SNOn E side of Otago Harbor in Dunedin area on SE South Island. Also index South Island.
Otago Schist  search
BTAustralasia
 .New Zealand
 ..Otago Schist
RTTriassic
 Carboniferous
 Permian
 Torlesse Supergroup
SN?Carboniferous-Triassic. Belt extends from near E Otago coast on South Island to the Southern Alps near Mount Aspiring. Metamorphism is most likely Permian-Triassic. Indexed with South Island.
Otake Field  search
BTAsia
 .Far East
 ..Japan
 ...Kyushu
 ....Oita Japan
 .....Otake Field
RTgeothermal fields
 Hatchobaru Field
SNGeothermal area in Oita Prefecture, Kyushu. Before 1993, also search Otake Japan AND Kyushu. Added to Thesaurus in 1993.
Otake Japan  search
BTAsia
 .Far East
 ..Japan
 ...Otake Japan
RTKyushu
 Hiroshima Japan
SNTown on Hiroshima Bay in Hiroshima Prefecture, SW Honshu. May also occur in other locations. Indexed with province as applicable.
Otavi Namibia  search
BTAfrica
 .Southern Africa
 ..Namibia
 ...Otavi Namibia
SNTown in N Namibia.
Otero County Colorado  search
BTUnited States
 .Colorado
 ..Otero County Colorado
SNSE Colorado.
Otero County New Mexico  search
BTUnited States
 .New Mexico
 ..Otero County New Mexico
RTGuadalupe Mountains
 Hueco Bolson
 Orogrande Basin
 White Sands
 Sacramento Mountains
 Hueco Mountains
 Sierra Blanca
SNS New Mexico.
Othris  search
USEOthrys
Othrys  search
BTEurope
 .Southern Europe
 ..Greece
 ...Othrys
UFOthris
 Othrys Massif
RTSterea Ellas
 Thessaly Greece
SNMountain range in central Greece. Indexed with administrative regions as applicable.
Othrys Massif  search
USEOthrys
Otoe County Nebraska  search
BTUnited States
 .Nebraska
 ..Otoe County Nebraska
otoliths  search
RTfossils
 microfossils
 Pisces
Otranto Italy  search
BTEurope
 .Southern Europe
 ..Italy
 ...Apulia Italy
 ....Otranto Italy
SNTown on Strait of Otranto in heel of Italian boot.
Otsego County Michigan  search
BTUnited States
 .Michigan
 ..Michigan Lower Peninsula
 ...Otsego County Michigan
SNN Michigan.
Otsego County New York  search
BTUnited States
 .New York
 ..Otsego County New York
SNCentral New York.
Ottawa County Kansas  search
BTUnited States
 .Kansas
 ..Ottawa County Kansas
SNN central Kansas.
Ottawa County Michigan  search
BTUnited States
 .Michigan
 ..Michigan Lower Peninsula
 ...Ottawa County Michigan
SNSW Michigan.
Ottawa County Ohio  search
BTUnited States
 .Ohio
 ..Ottawa County Ohio
SNN Ohio.
Ottawa County Oklahoma  search
BTUnited States
 .Oklahoma
 ..Ottawa County Oklahoma
NTPicher Oklahoma
SNExtreme NE Oklahoma.
Ottawa Ontario  search
BTCanada
 .Eastern Canada
 ..Ontario
 ...Ottawa Ontario
UFOttawa-Carleton Ontario
RTLeda Clay
SNAs of 1993, use for the Ottawa-Carleton regional municipality which includes the city, SE Ontario.
Ottawa River  search
RTLucas County Ohio
 Ohio
 Ontario
 Quebec
 Saint Lawrence River basin
 Wood County Ohio
SNRiver. Forms the border between Ontario and Quebec. Also in Lucas and Wood counties, N Ohio. Indexed with provinces OR Ohio and counties as applicable. Added to Thesaurus in 1989.
Ottawa Sand  search
RTNew York
 Ontario
 sand
 silica
SNSilica sand material used for engineering studies. From New York and Ontario. Indexed with age if applicable. Added to Thesaurus in 1993.
Ottawa Valley  search
BTCanada
 .Eastern Canada
 ..Ottawa Valley
RTOntario
 Quebec
SNRiver valley. Indexed with provinces as applicable.
Ottawa-Carleton Ontario  search
USEOttawa Ontario
Otter Tail County Minnesota  search
BTUnited States
 .Minnesota
 ..Otter Tail County Minnesota
ottish Highlands  search
NTGrampian Highlands
 Scottish Northern Highlands
Ottnangian  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Neogene
 ....Miocene
 .....lower Miocene
 ......Ottnangian
SNEurope.
Otto Fiord  search
USEOtto Fjord
Otto Fjord  search
UFOtto Fiord
RTFranklin District Northwest Territories
 Ellesmere Island
SNNW Ellesmere Island, Franklin District. Also search Otto. Indexed with Ellesmere Island as applicable.
Otway Basin  search
BTAustralasia
 .Australia
 ..Otway Basin
RTSouth Australia
 Victoria Australia
SNPrimarily in W and SW Victoria. Indexed with states as applicable.
Otztal Alps  search
BTEurope
 .Alps
 ..Eastern Alps
 ...Otztal Alps
NTStubai Alps
UFOetztal Alps
 Oetztal Massif
 Oetztaler
 Otztaler Alps
RTTyrol Austria
 Trentino-Alto Adige Italy
 Vernagt Glacier
SNMountain range of the Eastern Alps. Indexed with countries as applicable.
Otztaler Alps  search
USEOtztal Alps
Ouachita Belt  search
BTUnited States
 .Ouachita Belt
RTOklahoma
 Texas
 Arkansas
 Bigfork Chert
SNTectonic zone in S United States. Indexed with states as applicable. Added to Thesaurus in 1989.
Ouachita County Arkansas  search
BTUnited States
 .Arkansas
 ..Ouachita County Arkansas
Ouachita Mountains  search
BTUnited States
 .Ouachita Mountains
RTOklahoma
 Arkansas
 Benton Uplift
 Latimer County Oklahoma
SNIndexed with states as applicable.
Ouachita Orogeny  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Ouachita Orogeny
RTCarboniferous
 Permian
 Pennsylvanian
 United States
 orogeny
 Oklahoma
 Texas
 Wichita Uplift
 Benton Uplift
SNCarboniferous to Permian. Before 1985, also search orogeny AND Ouachita. Added to Thesaurus in 1985.
Ouachita Parish Louisiana  search
BTUnited States
 .Louisiana
 ..Ouachita Parish Louisiana
SNN Louisiana.
Ouachita-Balcones Trend  search
USEBalcones fault zone
Oubangui-Chari  search
USECentral African Republic
oueds  search
USEwadis
Ouegoa New Caledonia  search
BTOceania
 .Melanesia
 ..New Caledonia
 ...Ouegoa New Caledonia
SNVillage in NE New Caledonia.
Ougarta Algeria  search
BTAfrica
 .North Africa
 ..Algeria
 ...Ougarta Algeria
SNVillage W of the Great Western Erg in W central.
Oulu Finland  search
BTEurope
 .Western Europe
 ..Scandinavia
 ...Finland
 ....Oulu Finland
NTKuhmo Finland
SNProvince, central Finland. Also a city. Oulujarvi and Oulujoki are a lake and a river, respectively.
Ouray County Colorado  search
BTUnited States
 .Colorado
 ..Ouray County Colorado
SNSW central Colorado.
Ouro Preto Brazil  search
BTSouth America
 .Brazil
 ..Minas Gerais Brazil
 ...Ouro Preto Brazil
SNCity in S Minas Gerais, E Brazil.
Outagamie County Wisconsin  search
BTUnited States
 .Wisconsin
 ..Outagamie County Wisconsin
outbursts  search
SNNot a valid term for GeoRef. As of 1993, see blowouts, borehole breakouts, jokulhlaups, or rock bursts.
outcropping  search
USEoutcrops
outcrops  search
UFoutcropping
RTbedrock
SNUsed as a general term.
Outer Ban  search
Outer Banks  search
UFThe Banks
RTVirginia
 North Carolina
 Atlantic Coastal Plain
 Atlantic Ocean Islands
 Duck North Carolina
SNChain of sandy barrier islands stretching length of the North Carolina coast. May occur in other locations. Indexed with counties or regions as applicable.
outer continental shelf  search
USEouter shelf
outer core  search
BTcore
 .outer core
RTcore-mantle boundary
 inner core
Outer Hebrides  search
BTbrides
 .Outer Hebrides
RTLong Island
 Harris
 Inner Hebrides
 Saint Kilda
SNOuter group of the Hebrides, W of Little Minch. Sometimes called Long Island.
outer mantle  search
USEupper mantle
Outer Mongolia  search
USEMongolia
outer planets  search
RTJupiter
 Neptune
 planetology
 planets
 Pluto
 Saturn
 solar system
 terrestrial planets
 Uranus
 Voyager Program
SNThe outer five planets in the solar system: Jupiter, Saturn, Uranus, Neptune and Pluto.
outer shelf  search
BTcontinental shelf
 .outer shelf
UFouter continental shelf
RTinner shelf
 shelf-slope break
outer slope  search
BTcontinental slope
 .outer slope
UFslope, outer
RTinner slope
outer space  search
USEinterplanetary space
outgassing  search
USEdegassing
outliers  search
RTerosion features
 geostatistics
 inliers
 lithostratigraphy
 shore features
 statistical analysis
 stratigraphy
SNUse more specific term if applicable. Added to Thesaurus in 1993.
Outokumpu Finland  search
BTEurope
 .Western Europe
 ..Scandinavia
 ...Finland
 ....Eastern Finland Province
 .....Outokumpu Finland
SNAdministrative region including the village, SE Finland.
outwas  search
outwash  search
BTsediments
 .clastic sediments
 ..outwash
UFglacial outwash
 outwash drift
RTglacial geology
 fluvial features
 terrigenous materials
 glacial features
 periglacial features
 glaciofluvial sedimentation
outwash aprons  search
USEoutwash plains
outwash drift  search
USEoutwash
outwash plains  search
BTfluvial features
 .outwash plains
BTglacial features
 .outwash plains
UFmorainal plains
 outwash aprons
 overwash plain
 sandurs
RTglacial geology
 plains
 moraines
SNThis term has multiple hierarchies.
Ovda Regio  search
BTVenus
 .Aphrodite Terra
 ..Ovda Regio
SNHighland massif, W Aphrodite Terra.
over printing  search
USEoverprinting
overbank sediments  search
BTsediments
 .clastic sediments
 ..overbank sediments
RTsedimentation
 deposition
 fines
 alluvium
 clay
 floodplains
 silt
 levees
 suspended materials
 floods
SNFine-grained floodplain deposits. See List N. Added to Thesaurus in 1998.
overburden  search
RTcover tectonics
 mining geology
 regolith
 sedimentary cover
overburden pressure  search
USElithostatic pressure
overconsolidated materials  search
RTcompactness
 consolidation
 engineering geology
 foundations
 materials
 soil mechanics
SNBefore 1978, search overconsolidated AND materials.
overgrowths  search
RTcrystal growth
 minerals
Overijssel Netherlands  search
BTEurope
 .Western Europe
 ..Netherlands
 ...Overijssel Netherlands
NTTwente
SNProvince in E Netherlands.
overland flow  search
SNAs of 1993, use runoff if appropriate.
overpressure  search
RTearth pressure
 geopressure
 hydrostatic pressure
 lithostatic pressure
 pore pressure
 reservoir properties
 reservoir rocks
SNAbnormally high pore pressure or hydrostatic pressure. It exceeds lithostatic pressure. Added to Thesaurus in 1993.
overprinting  search
UFover printing
RTabsolute age
 geochronology
 isotopes
 orogeny
 relative age
 metamorphism
SNAdded to Thesaurus in 1985.
overthrust  search
SNA valid term through 1977. After 1977, use overthrust faults.
Overthrust Belt  search
SNAs of 1981, no longer a valid term for GeoRef. See Western Overthrust Belt; Eastern Overthrust Belt.
overthrust faults  search
BTfaults
 .overthrust faults
RTallochthons
 autochthons
 klippen
 nappes
 windows
 thrust faults
 displacements
SNBefore 1978, also search faults AND overthrust.
Overton County Tennessee  search
BTUnited States
 .Tennessee
 ..Overton County Tennessee
SNN Tennessee.
overturned folds  search
BTfolds
 .overturned folds
RTorientation
SNIncludes use as folds defined on the basis of orientation in relation to the geographic horizontal plane. Before 1978, also search folds AND overturned.
overwash  search
SNA valid index term from 1977-1980.
overwash plain  search
USEoutwash plains
Oviedo Spain  search
USEAsturias Spain
Ovruch Series  search
BTChronostratigraphic Units
 .Precambrian
 ..Proterozoic
 ...Ovruch Series
RTUkraine
SNDivided into two subseries.
Owen County Indiana  search
BTIndiana
 .Owen County Indiana
Owen County Kentucky  search
BTUnited States
 .Kentucky
 ..Owen County Kentucky
Owen fracture zone  search
BTIndian Ocean
 .Owen fracture zone
SNNW Indian Ocean. Added to Thesaurus in 1989.
Owens Lake  search
BTUnited States
 .California
 ..Inyo County California
 ...Owens Lake
RTOwens Valley
SNDry lake at the S end of Owens Valley, Central California.
Owens Valley  search
RTInyo County California
 Inyo Domes
 Owens Lake
 California
SNRiver valley between Sierra Nevada on the W, and White and Inyo Mountains on E. Indexed with counties or regions as applicable.
Owl Creek Mountains  search
BTUnited States
 .Wyoming
 ..Owl Creek Mountains
BTUnited States
 .U. S. Rocky Mountains
 ..Owl Creek Mountains
RTFremont County Wyoming
 Hot Springs County Wyoming
SNNW Wyoming. This term has multiple hierarchies. Indexed with counties as applicable. Added to Thesaurus in 1985.
Owsley County Kentucky  search
BTUnited States
 .Kentucky
 ..Owsley County Kentucky
SNE central Kentucky.
Owyhee County Idaho  search
BTUnited States
 .Idaho
 ..Owyhee County Idaho
RTOwyhee Mountains
 Reynolds Creek
SNSW Idaho.
Owyhee Mountains  search
BTUnited States
 .Owyhee Mountains
UFOwyhee Upland
RTIdaho
 Oregon
 Malheur County Oregon
 Owyhee County Idaho
SNOwyhee County, SW Idaho; Malheur County, SE Oregon. Indexed with states and counties as applicable. Added to Thesaurus in 1989.
Owyhee Upland  search
USEOwyhee Mountains
oxalates  search
NTweddellite
 whewellite
RTminerals
oxalic acid  search
BTorganic compounds
 .organic acids
 ..carboxylic acids
 ...oxalic acid
SNAdded to Thesaurus in 1995.
oxbow lakes  search
BTfluvial features
 .oxbow lakes
RTgeomorphology
 avulsion
 meanders
 rivers
 rivers and streams
 streams
SNAlso search oxbows. Added to Thesaurus in 1989.
Oxford Clay  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Mesozoic
 ...Jurassic
 ....Upper Jurassic
 .....Oxfordian
 ......Oxford Clay
RTEngland
 United Kingdom
Oxford County Maine  search
BTUnited States
 .Maine
 ..Oxford County Maine
RTSaco River
 Rangeley Lakes
SNW Maine.
Oxford County Ohio  search
BTUnited States
 .Ohio
 ..Butler County Ohio
 ...Oxford County Ohio
SNSW Ohio.
Oxford County Ontario  search
BTCanada
 .Eastern Canada
 ..Ontario
 ...Oxford County Ontario
SNS Ontario. For county in Maine, see Oxford County Maine.
Oxford England  search
BTEurope
 .Western Europe
 ..United Kingdom
 ...Great Britain
 ....England
 .....Oxfordshire England
 ......Oxford England
SNCity 52 miles WNW of London in central England.
Oxford Idaho  search
BTUnited States
 .Idaho
 ..Franklin County Idaho
 ...Oxford Idaho
SNSE Idaho.
Oxford Mississippi  search
BTUnited States
 .Mississippi
 ..Lafayette County Mississippi
 ...Oxford Mississippi
SNN Mississippi.
Oxford New Zealand  search
BTAustralasia
 .New Zealand
 ..Oxford New Zealand
RTSouth Island
SNTownship on E South Island. Indexed with South Island.
Oxford North Carolina  search
BTUnited States
 .North Carolina
 ..Granville County North Carolina
 ...Oxford North Carolina
SNN North Carolina.
Oxford Ohio  search
BTUnited States
 .Ohio
 ..Butler County Ohio
 ...Oxford Ohio
SNSW Ohio.
Oxfordian  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Mesozoic
 ...Jurassic
 ....Upper Jurassic
 .....Oxfordian
NTOxford Clay
RTHanifa Formation
 Malm
SNEurope. Above Callovian, below Kimmeridgian.
Oxfordshire England  search
BTEurope
 .Western Europe
 ..United Kingdom
 ...Great Britain
 ....England
 .....Oxfordshire England
NTOxford England
RTBerkshire England
SNCounty in central England. As of 1975, includes land which was part of Berkshire.
oxidation  search
RTEh
 hydrolysis
 nitrification
 geochemistry
 oxidation zone
 oxygen
 photochemistry
 processes
 reduction
 Thiobacillus ferrooxidans
oxidation zone  search
UFzone, oxidation
RTmineral deposits, genesis
 Eh
 oxidation
oxidation-reduction potential  search
USEEh
oxides  search
NTakaganeite
 alexandrite
 aluminum oxides
 anatase
 armalcolite
 asbolite
 baddeleyite
 bayerite
 birnessite
 bixbyite
 boehmite
 brannerite
 bromellite
 brookite
 brucite
 buserite
 cassiterite
 chrome spinel
 chromite
 chrysoberyl
 coronadite
 corundum
 cryptomelane
 cuprite
 delafossite
 diaspore
 ferrihydrite
 ferropseudobrookite
 franklinite
 gahnite
 geikielite
 germanates
 gibbsite
 goethite
 groutite
 hausmannite
 hematite
 hercynite
 heterogenite
 hibonite
 hoegbomite
 hollandite
 hydrogoethite
 hydroxides
 ilmenite
 iron oxides
 jacobsite
 lepidocrocite
 leucoxene
 limonite
 lithiophorite
 maghemite
 magnesioferrite
 magnesiowustite
 magnetite
 manganese oxides
 manganite
 manganosite
 martite
 nigerite
 niobates
 nordstrandite
 nsutite
 periclase
 perovskite
 pitchblende
 portlandite
 priderite
 pseudobrookite
 psilomelane
 pyrolusite
 pyrophanite
 ramsdellite
 rancieite
 rutile
 sapphire
 senarmontite
 specularite
 spinel
 spinel group
 taaffeite
 tantalates
 thorianite
 titanium oxides
 titanomaghemite
 titanomagnetite
 todorokite
 trevorite
 ulvospinel
 uraninite
 valentinite
 vernadite
 wuestite
 zincite
RTalumina
 glacial features
 ice
 minerals
 nitrogen dioxide
 nitrous oxide
 ocher
SNBefore 1981, zirkelite was included as a narrower term.
Oxisols  search
BTsoils
 .Oxisols
RTsoil group
Oxnard California  search
BTUnited States
 .California
 ..Ventura County California
 ...Oxnard California
SNCity in S California.
Oxus  search
USEAmu Darya
oxygen  search
NTO-16
 O-17
 O-17/O-16
 O-18
 O-18/O-16
RTchemical elements
 geochemical cycle
 isotopes
 oxidation
 ozone
 stable isotopes
oxyhydroxides  search
BToxides
 .hydroxides
 ..oxyhydroxides
RTclay mineralogy
 iron oxides
 titanium oxides
 manganese oxides
SNNot a formal systematic term in mineralogy. See oxides for specific minerals. Indexed with specific minerals as applicable.
oxymagnite  search
USEmaghemite
oxyphile elements  search
USElithophile elements
oxysulfides  search
BTsulfides
 .oxysulfides
Ozark County Missouri  search
BTUnited States
 .Missouri
 ..Ozark County Missouri
Ozark Highlands  search
USEOzark Mountains
Ozark Mountains  search
BTUnited States
 .Ozark Mountains
UFOzark Highlands
 Ozark Uplift
 Ozarks
RTMissouri
 Oklahoma
 Arkansas
 Saint Francois Mountains
SNEroded tableland. Indexed with states as applicable.
Ozark Uplift  search
USEOzark Mountains
Ozarkodina  search
BTmicrofossils
 .Conodonta
 ..Ozarkodina
SNGenus.
Ozarks  search
USEOzark Mountains
Ozaukee County Wisconsin  search
BTUnited States
 .Wisconsin
 ..Ozaukee County Wisconsin
SNE Wisconsin.
Ozernoye Russian Federation  search
BTCommonwealth of Independent States
 .Russian Federation
 ..Ozernoye Russian Federation
BTAsia
 .Ozernoye Russian Federation
RTKamchatka Russian Federation
SNVillage in SE Kamchatka on Okhotsk Sea just N of Ozernovskiy. Also occurs in other locations. Before 1993, Ozernoye Russian Republic was also used. This term has multiple hierarchies. Indexed with oblast or region as applicable.
ozocerite  search
BTorganic minerals
 .ozocerite
ozone  search
RTatmosphere
 chlorofluorocarbons
 oxygen
Ozun  search
USEUzon