se  search
USEselenium
Sea Beam  search
USESeabeam
sea fan  search
USEsubmarine fans
sea floor spreading  search
USEsea-floor spreading
sea floors  search
USEocean floors
sea ice  search
RTice
 ice fields
 icebergs
 oceanography
 sea water
sea level  search
SNNot a valid term for GeoRef. See sea-level changes.
Sea Mapping and Remote Characterization  search
USESeaMarc
sea mounts  search
USEseamounts
Sea of Azof  search
USEAzov Sea
Sea of Azov  search
USEAzov Sea
Sea of Crises  search
BTMoon
 .Sea of Crises
UFMare Crisium
SNAlso search Crisium.
Sea of Fertility  search
BTMoon
 .Sea of Fertility
UFMare Fecunditatis
Sea of Galilee  search
BTAsia
 .Middle East
 ..Israel
 ...Sea of Galilee
UFLake Kinneret
 Lake Tiberias
RTGreat Rift Valley
 Galilee Basin
SNFreshwater lake lying in N part of the Great Rift Valley, Northern Israel.
Sea of Japan  search
USEJapan Sea
Sea of Marmara region  search
BTAsia
 .Middle East
 ..Turkey
 ...Sea of Marmara region
RTBosporus
SNAlso index Europe if applicable. Added to Thesaurus in 1981.
Sea of Nectar  search
BTMoon
 .Sea of Nectar
UFMare Nectaris
Sea of Okhotsk  search
USEOkhotsk Sea
Sea of Rains  search
BTMoon
 .Sea of Rains
UFImbrium Basin
 Mare Imbrium
RTAristarchus
Sea of Serenity  search
BTMoon
 .Sea of Serenity
UFMare Serenitatis
Sea of Tranquillity  search
BTMoon
 .Sea of Tranquillity
UFMare Tranquillitatis
Sea of Waves  search
BTMoon
 .Sea of Waves
UFMare Undarum
sea surface temperature  search
USEsea-surface temperature
sea water  search
UFseawater
RTisotopes
 oceanography
 pH
 atmosphere
 marine geology
 ion exchange
 hydrochemistry
 brackish water
 paleosalinity
 salinity
 salt water
 brines
 desalinization
 salt
 density
 carbonate compensation depth
 chemical dispersion
 nepheloid layer
 halmyrolysis
 salt-water int
SNUsed for studies on the composition and properties of the water of the oceans. For ancient water, see sedimentation or geochemistry.
sea-floor spreading  search
UFocean-floor spreading
 sea floor spreading
 spreading concept
 spreading-floor hypothesis
RTmantle
 accreting plate boundary
 geosynclines
 marine geology
 magnetic anomalies
 continental drift
 mid-ocean ridges
 crust
 heat flow
 Benioff zone
 Iceland Research Drilling Project
 expanding Earth
 fracture zones
 geotectonic maps
 mid-ocean ridge basalts
 Mohoro
SNUsed for topics related to the hypothesis that the oceanic crust is increasing by convective upwelling of magma along the mid-ocean ridges or world rift system.
sea-floor trench  search
USEtrenches
sea-level chang  search
sea-level changes  search
NTregression
 transgression
RTbeach profiles
 continental shelf
 eustacy
 event stratigraphy
 Fischer plots
 geodesy
 glacial geology
 glaciation
 greenhouse effect
 highstands
 isostasy
 land bridges
 land loss
 levels
 lowstands
 neotectonics
 paleo-oceanography
 paleoecology
 paleogeography
 raised b
SNAlso search (transgression or regression) OR changes of level. Added to Thesaurus in 1995.
sea-surface temperature  search
UFsea surface temperature
RToceanography
 marine geology
 temperature
 sea water
 surface properties
 global change
SNAdded to Thesaurus in 1998.
sea-water encroachment  search
USEsalt-water intrusion
sea-water intrusion  search
USEsalt-water intrusion
Seabeam  search
UFSea Beam
RTinstruments
 acoustical methods
 geophysical methods
 geophysical surveys
 seismic methods
 data processing
 bathymetry
 sonar methods
 marine methods
SNAdded to Thesaurus in 1989.
sealing  search
RTcap rocks
 engineering geology
SNAdded to Thesaurus in 1981.
SeaMarc  search
UFSea Mapping and Remote Characterization
RTacoustical methods
 geophysical methods
 geophysical surveys
 remote sensing
 satellite methods
 imagery
 marine methods
 image enhancement
SNAcronym. Added to Thesaurus in 1989.
seamounts  search
UFguyots
 sea mounts
RTbottom features
 ocean floors
seams, coal  search
USEcoal seams
Searcy County Arkansas  search
BTUnited States
 .Arkansas
 ..Searcy County Arkansas
Searles Lake  search
RTInyo County California
 potash
 San Bernardino County California
 California
 trona
 Trona California
SNDry lake in NW San Bernardino and Inyo counties in S California. Source of potash and borates. Indexed with counties or regions as applicable.
seas, epeiric  search
USEepicontinental seas
seas, epicontinental  search
USEepicontinental seas
seas, marginal  search
USEmarginal seas
Seasat  search
RTgeophysical methods
 geophysical surveys
 marine geology
 oceanography
 remote sensing
 satellite methods
SNAdded to Thesaurus in 1985.
seasonal  search
SNA valid term through 1977. After 1977, use seasonal variations.
seasonal variations  search
RTannual variations
 magnetic field
 secular variations
 variations
SNBefore 1978, search seasonal AND variations.
seat clay  search
USEunderclay
seat earth  search
USEunderclay
Seattle Washington  search
BTUnited States
 .Washington
 ..King County Washington
 ...Seattle Washington
SNCity on Puget Sound in W central Washington.
seawalls  search
RTrevetments
 riprap
 shorelines
 spillways
seawater  search
USEsea water
seaweed  search
USEPhaeophyta
Sebastian County Arkansas  search
BTUnited States
 .Arkansas
 ..Sebastian County Arkansas
Sebes Mountains  search
BTEurope
 .Southern Europe
 ..Romania
 ...Transylvania
 ....Sebes Mountains
SNSW Transylvania.
Sebes Romania  search
BTEurope
 .Southern Europe
 ..Romania
 ...Transylvania
 ....Sebes Romania
SNTown in Alba County in SW Transylvania, central Romania.
Sebkha de Tindouf  search
USETindouf Basin
Sebkha el Melah  search
BTAfrica
 .North Africa
 ..Tunisia
 ...Sebkha el Melah
sebkha environment  search
BTterrestrial environment
 .sebkha environment
UFsabkha environment
RTsedimentation
 depositional environment
 paleogeography
 hypersaline environment
 arid environment
 semi-arid environment
 playas
 salt marshes
 supratidal environment
SNBefore 1978, search sebkha.
Seboomook Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Devonian
 ....Lower Devonian
 .....Seboomook Formation
RTQuebec
 Maine
SNAdded to Thesaurus in 1989.
secondary dispersion  search
RTdispersion patterns
 mineral exploration
 primary dispersion
secondary ion mass spectroscopy  search
UFSIMS
RTspectroscopy
 mass spectroscopy
 chemical analysis
 ions
SNBefore 1993, also search secondary ion methods. Added to Thesaurus in 1993.
secondary magnetization  search
BTmagnetization
 .secondary magnetization
RTremagnetization
SNAdded to Thesaurus in 1981.
secondary migration  search
RTmigration
 natural gas
 petroleum
SNFor migration of elastic waves use seismic migration. Added to Thesaurus in 1985.
secondary minerals  search
RTamygdules
 minerals
secondary porosity  search
BTporosity
 .secondary porosity
RTphysical properties
 sedimentary rocks
 sediments
 permeability
 porous materials
SNAdded to Thesaurus in 1989.
secondary recovery  search
BTenhanced recovery
 .secondary recovery
RTpetroleum engineering
 fluid injection
 tertiary recovery
 petroleum
 recovery
 steam injection
 waterflooding
secondary structures  search
BTsedimentary structures
 .secondary structures
NTarmored mud balls
 concretions
 cone-in-cone
 geodes
 microstylolites
 septaria
 stylolites
RTprimary structures
 nodules
secondary wave  search
USES-waves
sections  search
SNNo longer a valid term for GeoRef. As of 1993, see borehole sections, cross sections, pit sections, polished sections, stratotypes, thin sections, or type sections.
secular variations  search
UFgeomagnetic secular variation
RTpaleomagnetism
 magnetic field
 annual variations
 seasonal variations
 variations
Sedan France  search
BTEurope
 .Western Europe
 ..France
 ...Ardennes France
 ....Sedan France
RTArdennes
SNCity near Belgian border in NE Ardennes, NE France.
Sedgwick Basin  search
BTUnited States
 .Kansas
 ..Sedgwick Basin
SNS central Kansas.
Sedgwick County Colorado  search
BTUnited States
 .Colorado
 ..Sedgwick County Colorado
SNExtreme NE Colorado.
Sedgwick County Kansas  search
BTUnited States
 .Kansas
 ..Sedgwick County Kansas
NTWichita Kansas
SNS Kansas.
sediment budget  search
USEbedload
sediment load  search
USEbedload
sediment supply  search
RTcontrols
 hydrology
 sedimentation
 supply
SNAdded to Thesaurus in 1993.
sediment transport  search
RTbeach profiles
 erosion rates
 flume studies
 glacial transport
 gravel-bed streams
 ice rafting
 laminar flow
 littoral cells
 marine transport
 saltation
 sedimentation
 settling
 stream transport
 suspension
 transport
 turbidity currents
 wind transport
SNReintroduced. Before 1993, also search transport AND sedimentation. A valid term before 1976. Added to Thesaurus in 1993.
sediment traps  search
RThydrology
 instruments
 oceanography
 samplers
 sampling
 sedimentation
 sediments
 suspended materials
SNAdded to Thesaurus in 1985.
sediment yield  search
RTerosion
 GLEAMS
 runoff
 sediments
 streams
 yields
sediment-water interface  search
UFinterface, sediment-water
RTsedimentation
 interfaces
 water
 sediments
 mineral-water interface
 water-rock interaction
SNBefore 1978, search interface AND sediment-water.
sedimenta  search
sedimentary basins  search
BTbasins
 .sedimentary basins
RTpaleogeography
 basin analysis
 foreland basins
 piggyback basins
SNTerm should be used in paleogeographic papers, not for recent basins.
sedimentary bodies  search
RTsedimentary rocks
 sedimentation
 sediments
SNAdded to Thesaurus in 1981.
sedimentary cover  search
UFcover, sedimentary
RTtectonics
 basement
 cover tectonics
 overburden
 regolith
sedimentary environment  search
USEdepositional environment
sedimentary fault  search
USEgrowth faults
sedimentary petrology  search
RTbibliography
 catalogs
 clay mineralogy
 diagenesis
 domains
 flume studies
 glossaries
 lexicons
 marine geology
 microscope methods
 oceanography
 petrology
 sedimentary rocks
 sedimentary structures
 sedimentation
 sedimentology
 sediments
 shape analysis
SNUsed for the discipline as a whole.
Sedimentary Petrology (category)  search
SNSedimentary petrology, GeoRef category code 06, 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 searches (See List A.).
sedimentary processes  search
SNNo longer a valid term for GeoRef. After 1997, use specific process. Used for economic papers only.
sedimentary quartzite  search
USEorthoquartzite
sedimentary rocks  search
NTbone beds
 carbonate rocks
 caustobiolith
 chemically precipitated rocks
 clastic rocks
 coal
 gas sands
 grapestone
 oil sands
 oil shale
 torbanite
 tripoli
RTagglomerate
 anhydrite
 arenaceous texture
 argillaceous texture
 arkosic composition
 authigenesis
 bauxite
 boulders
 calcareous composition
 catagenesis
 cement
 chemical properties
 clasts
 clay mineralogy
 coarse-grained materials
 concretions
 contourite
 diagenesis
SNFor description of hierarchy see List I.
sedimentary structures  search
NTbedding plane irregularities
 biogenic structures
 cylindrical structures
 planar bedding structures
 primary structures
 rhizoliths
 secondary structures
 seismites
 soft sediment deformation
 sole marks
 turbidity current structures
RTbioerosion
 borings
 boudinage
 burrows
 casts
 channels
 coprolites
 deposition
 diagenesis
 ergs
 fluvial features
 furrows
 glacial geology
 hardground
 intraformational structures
 mounds
 nodules
 paleogeography
 reefs
 sedimentary petrology
 sedimentary rocks
 sedimenta
SNUsed for a structure in a sedimentary rock or sediment, formed either contemporaneously with deposition (primary) or subsequently to deposition (secondary). See list K for types and names of structures.
sedimentati  search
sedimentation  search
NTbiochemical sedimentation
 bioclastic sedimentation
 chemical sedimentation
 coastal sedimentation
 continental margin sedimentation
 deep-sea sedimentation
 deltaic sedimentation
 detrital sedimentation
 estuarine sedimentation
 fluvial sedimentation
 fresh-water sedimentation
 glacial sedimentation
 intertidal sedimentation
 lacustrine sedimentation
 lagoonal sedimentation
 marine sedimentation
 nearshore sedimentation
 paludal sedimentation
 pelagic sedimentation
 terrestrial sedimentation
RTablation
 accretion
 aquatic environment
 artificial islands
 At
SNUsed for the act or process of forming or accumulating sediment in layers, including all processes from transport through diagenesis. Before 1998, if applicable, also search sedimentary processes which was chiefly used for economic studies. Before 1976, a
sedimentation rates  search
UFrate of sedimentation
RTsedimentation
 settling
 rates
SNBefore 1982, search sedimentation AND rates. Added to Thesaurus in 1982.
sedimentology  search
RTdecompaction
 marine geology
 sedimentary petrology
 sedimentary rocks
 geomorphology
 sedimentation
 sediments
SNFor the discipline.
sediments  search
NTcarbonate sediments
 clastic sediments
 guano
 gyttja
 marine sediments
 peat
RTamygdules
 anhydrite
 arenaceous texture
 argillaceous texture
 arkosic composition
 ash flows
 bedload
 biofacies
 breccia
 calcareous composition
 cement
 chemical properties
 clasts
 clay mineralogy
 coarse-grained materials
 compactness
 concretions
 contourite
 dehydr
SNUsed for unconsolidated solid fragmental material, or a mass of such material, that originates from weathering of rocks. See List N.
seeds  search
RTAngiospermae
 cones
 flight
 Gymnospermae
 lignin
 paleobotany
 Plantae
 wings
Seeland  search
USEZealand
seepage  search
UFleakage
RTdrainage
 ground water
 aquitards
 leaky aquifers
 reservoirs
 petroleum
 foundations
 oil seeps
 nuclear facilities
 cold seeps
 gas seeps
 geomembranes
 geotextiles
 leaking underground storage tanks
 far-field
 near-field
 infiltrometers
 percolation
 leachate
 engineeri
SNUse cold seeps, gas seeps, or oil seeps if applicable.
seeps, cold  search
USEcold seeps
seeps, gas  search
USEgas seeps
seeps, oil  search
USEoil seeps
SEG  search
SNNot a valid term for GeoRef. See Society of Exploration Geophysicists or Society of Economic Geologists if applicable.
segmentation  search
RTArthropoda
 drainage patterns
 faults
 fracture zones
 lagoons
SNUsed as a general term applicable to a variety of subjects including faults, fracture zones, lagoon subdivision, drainage patterns, and arthropod bodies. Added to Thesaurus in 1989.
Segovia Spain  search
BTEurope
 .Southern Europe
 ..Iberian Peninsula
 ...Spain
 ....Castilla y Leon Spain
 .....Segovia Spain
RTCastile Spain
 Old Castile Spain
 Sierra de Guadarrama
SNProvince in central Spain.
Segozero  search
BTCommonwealth of Independent States
 .Russian Federation
 ..Karelia Russian Federation
 ...Segozero
RTKarelia
SNLake in S central Karelian Automomous Republic in NW European Russian Federation. This term has multiple hierarchies.
Segre Valley  search
RTLerida Spain
SNRiver valley in Catalonia, Spain. Also search Segre; Segre River. Indexed with Spain if applicable.
segregation  search
RTcrystal fractionation
 fractional crystallization
 magmas
 phase equilibria
 geochemistry
SNAdded to Thesaurus in 1981.
seiches  search
RTlakes
 limnology
 ocean waves
 waves
Seiland  search
BTEurope
 .Western Europe
 ..Scandinavia
 ...Norway
 ....Finnmark Norway
 .....Seiland
SNIsland in Arctic Ocean off NW Finnmark.
Seine  search
BTEurope
 .Western Europe
 ..France
 ...Seine
RTParis France
SNFormer department which constituted Paris proper and a ring of industrial and residential suburbs. Department officially abolished January 1, 1960.
Seine Estuary  search
BTEurope
 .Western Europe
 ..France
 ...Seine Estuary
RTCalvados France
 Seine-Maritime France
 Eure France
SNThe tidal mouth of the Seine River emptying into the Bay of the Seine at Le Havre. Indexed with departments as applicable.
Seine River  search
BTEurope
 .Western Europe
 ..France
 ...Seine River
RTSeine Valley
SNRises in Cote-d'Or Department in E and flows NW through Paris and into the English Channel near Le Havre.
Seine Valley  search
BTEurope
 .Western Europe
 ..France
 ...Seine Valley
RTSeine River
SNRiver valley in N central and N France.
Seine-et-Marne France  search
BTEurope
 .Western Europe
 ..France
 ...Seine-et-Marne France
NTFontainebleau France
RTYonne Valley
SNDepartment in N central France.
Seine-et-Oise  search
BTEurope
 .Western Europe
 ..France
 ...Seine-et-Oise
RTParis France
SNFormer department outside Paris suburbs which completely surrounded former Seine Department. Officially abolished January 1, 1968.
Seine-Maritime France  search
BTEurope
 .Western Europe
 ..France
 ...Seine-Maritime France
NTCaux
 Dieppe France
 Le Havre France
 Rouen France
RTNormandy
 Seine Estuary
SNDepartment in NW France.
Seine-Saint-Denis France  search
BTEurope
 .Western Europe
 ..France
 ...Seine-Saint-Denis France
SNDepartment in N France.
Seislog  search
RTinstruments
 inverse problem
 seismic logging
 seismic methods
 well-logging
seismic  search
seismic attributes  search
SNNot a valid term for GeoRef. If applicable, index specific attributes and hydrocarbon indicators. See seismology or seismic methods.
seismic coherency  search
UFcoherency, seismic
RTseismology
 geophysical methods
 properties
 seismic methods
 wave dispersion
 frequency
 propagation
 frequency domain analysis
 wave fields
SNAlso index seismology and/or seismic methods.
seismic data  search
SNA valid term through 1977. Use data and earthquakes.
seismic discontinuities  search
USEdiscontinuities
seismic effects  search
SNA valid term through 1977. Use effects and earthquakes.
seismic energy  search
RTearthquakes
 energy
 seismology
SNEnergy produced by earthquakes. Added to Thesaurus in 1981.
seismic exploration  search
SNNot a valid GeoRef index term after 1971. Used in subfiles G and N. Now use seismic methods, or seismic logging.
seismic focus  search
USEfocus
seismic gaps  search
RTactive faults
 earthquake prediction
 earthquakes
 faults
 seismic quiescence
 seismicity
 seismology
 seismotectonics
SNAdded to Thesaurus in 1985.
seismic intensity  search
RTamplitude
 earthquakes
 intensity
 magnitude
 modified Mercalli scale
 Richter Scale
 seismology
SNAdded to Thesaurus in 1981.
seismic logging  search
BTwell-logging
 .seismic logging
RTacoustical logging
 impedance
 tube waves
 seismic methods
 Seislog
 vertical seismic profiles
SNAdded to Thesaurus in 1984.
seismic methods  search
BTgeophysical methods
 .seismic methods
NTbottom-simulating reflectors
 hydrocarbon indicators
RTair guns
 backscattering
 Doppler effect
 geophones
 geophysical surveys
 elastic waves
 filters
 AVO methods
 dip moveout
 crust
 BIRPS
 deep seismic sounding
 explosions
 crosshole methods
 CALCRUST
 COCORP
 COCRUST
 ECORS
 DEKORP
 frequency domain analysis
 far-field
 GEOS
SNFor surveys, search with geophysical surveys and an area. For surveys, also index geophysical surveys and the area.
seismic migration  search
NTpoststack migration
 prestack migration
UFmigration (seismic)
RTseismology
 seismic methods
 arrival time
 dip moveout
 raypaths
 imagery
 migration
 diffraction
 inverse problem
 Kirchhoff integral
 finite difference analysis
 wave fields
SNInversion operation for rearranging seismic information to plot reflections and diffractions at their true locations. Before 1993, also search migration AND seismic methods. Added to Thesaurus in 1993.
seismic moment  search
RTdisplacements
 earthquakes
 faults
 moment tensors
 seismology
 shear modulus
SNAdded to Thesaurus in 1981.
seismic moment tensors  search
USEmoment tensors
seismic networks  search
NTTERRAscope
RTarrays
 geophysical methods
 geophysical surveys
 GEOS
 IRIS network
 LASA
 networks
 NORESS
 NORSAR
 PANDA
 PASSCAL
 portable arrays
 seismic methods
 seismology
 SMART2
SNBefore 1993, also search arrays OR networks with seismic methods OR seismology. Added to Thesaurus in 1993.
seismic noise  search
SNA valid term through 1978. After 1978, use noise.
seismic profiles  search
BTgeophysical profiles
 .seismic profiles
NTvertical seismic profiles
RTseismic methods
 ECORS
 Lithoprobe
SNAdded to Thesaurus in 1985.
seismic quiescence  search
UFquiescence, seismic
RTearthquakes
 seismic gaps
 seismicity
 volcanic earthquakes
SNAlso search quiescence with seismicity or earthquakes. See seismic gaps if applicable. Also index seismic gaps if applicable. Added to Thesaurus in 1995.
seismic reflection profiles  search
SNNot a valid term for GeoRef. As of 1989, use seismic profiles in combination with reflection.
seismic response  search
RTacceleration
 aseismic design
 coseismic processes
 dams
 earthquakes
 foundations
 highways
 marine installations
 microzonation
 nuclear facilities
 railroads
 reservoirs
 engineering geology
 seismic risk
 seismology
 soil mechanics
 soil-structure interface
 tunnels
 u
SNResponse of a man-made structure to an earthquake. Added to Thesaurus in 1981.
seismic risk  search
UFrisk, seismic
RTseismic response
 engineering geology
 geologic hazards
 safety
 nuclear facilities
 microzonation
 seismic zoning
 public awareness
seismic sea waves  search
USEtsunamis
seismic sounding  search
USEdeep seismic sounding
seismic sources  search
UFsources, seismic
RTseismology
 earthquakes
 elastic waves
 explosions
 spalling
 wavelets
 vibrators
 waveforms
seismic stratigraphy  search
UFseismostratigraphy
RTseismic methods
 stratigraphy
 hydrocarbon indicators
 sequence stratigraphy
 lithofacies
 lithostratigraphy
SNAdded to Thesaurus in 1985.
seismic studies  search
SNA valid term through 1976. Use seismic methods and theoretical studies or experimental studies.
seismic surge  search
USEtsunamis
seismic survey maps  search
BTmaps
 .seismic survey maps
RTgeophysical survey maps
 seismic methods
SNAlso search maps AND geophysical surveys AND seismic methods with area. Added to Thesaurus in 1985.
seismic wavelets  search
USEwavelets
seismic waves  search
BTelastic waves
 .seismic waves
NTbody waves
 surface waves
UFEarth waves
RTAiry waves
 short-period waves
 long-period waves
SNRestricted to solid-earth waves; for the seismic sea wave, use tsunamis. From 1976-1997, elastic waves was used.
seismic zones  search
USEseismic zoning
seismic zoning  search
UFseismic zones
RTseismology
 earthquakes
 engineering geology
 environmental geology
 zoning
 microzonation
 seismic risk
 seismicity maps
 seismotectonic maps
SNAdded to Thesaurus in 1981.
seismicity  search
UFmicroseismicity
RTseismology
 seismic gaps
 paleoseismicity
 coupling
 intraplate processes
 seismotectonics
 seismic quiescence
 seismicity maps
seismicity maps  search
BTmaps
 .seismicity maps
RTseismology
 seismicity
 seismic zoning
 seismotectonic maps
SNAdded to Thesaurus in 1982.
seismite  search
USEseismites
seismites  search
BTsedimentary structures
 .seismites
UFseismite
RTearthquakes
 paleoseismicity
 soft sediment deformation
 synsedimentary processes
SNStructures thought to be produced by earthquakes. Also index soft sediment deformation if applicable (See list K).
seismo  search
seismograms  search
NTnumerical seismograms
 synthetic seismograms
 theoretical seismograms
UFearthquake record
RTseismology
 earthquakes
 TERRAscope
 coda waves
 seismographs
 spectral analysis
 signal-to-noise ratio
 vertical seismic profiles
seismographs  search
NTelectromagnetic seismographs
 horizontal-component seismographs
 inertial seismographs
 long-period seismographs
 ocean bottom seismographs
 short-period seismographs
 strain seismographs
 three-component seismographs
 vertical-component seismographs
UFseismometers
RTseismology
 instruments
 earthquakes
 geophones
 LASA
 seismograms
 high-level mode
 spheroidal mode
 toroidal mode
seismology  search
RT410-km discontinuity
 670-km discontinuity
 accelerograms
 accelerometers
 acoustical emissions
 acoustical properties
 acoustical waves
 aftershocks
 Airy waves
 amplitude
 amplitude distortion
 anelastic materials
 anelasticity
 anisotropy
 arrival time
 attenuation
 b
SNUsed for the discipline as a whole as well as topics pertaining to seismology.
Seismology (category)  search
SNSeismology, GeoRef category code 19, 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 searches (See List A.).
seismometers  search
USEseismographs
seismostratigraphy  search
USEseismic stratigraphy
seismotectonic maps  search
BTmaps
 .seismotectonic maps
RTseismology
 tectonics
 tectonic maps
 seismic zoning
 seismotectonics
 seismicity maps
SNBefore 1981, search seismotectonics AND maps. Added to Thesaurus in 1981.
seismotectonics  search
BTtectonics
 .seismotectonics
RTseismology
 plate tectonics
 seismic gaps
 paleoseismicity
 seismicity
 seismotectonic maps
SNThe earthquake-related aspects of tectonics.
Selachii  search
BTChordata
 .Vertebrata
 ..Pisces
 ...Chondrichthyes
 ....Elasmobranchii
 .....Selachii
NTGaleoidea
SNOrder.
Selandian  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Paleogene
 ....Paleocene
 .....Selandian
Selangor Malaysia  search
BTAsia
 .Far East
 ..Malaysia
 ...West Malaysia
 ....Selangor Malaysia
NTKuala Lumpur Malaysia
SNState on W coast of Malay Peninsula in West Malaysia. This term has multiple hierarchies.
selection, natural  search
selenates  search
RTminerals
SNBefore 1981, search selenates and selenites.
selenates and selenites  search
SNAs of 1981, no longer a valid term for GeoRef. Use selenates or selenites as applicable.
Selenga Mongolia  search
BTAsia
 .Far East
 ..Mongolia
 ...Selenga Mongolia
UFSelenge
SNProvince on the Buryat border in N Mongolia.
Selenga River valley  search
BTAsia
 .Selenga River valley
UFSelenge River valley
RTRussian Federation
 Mongolia
SNExtends to SE Lake Baikal in Russian Federation. Indexed with countries as applicable.
Selenge  search
USESelenga Mongolia
Selenge River valley  search
USESelenga River valley
selenides  search
NTeskebornite
 umangite
RTminerals
selenite  search
BTsulfates
 .selenite
RTgypsum
SNUsed for the variety of gypsum. Not related to the group name, selenites.
selenites  search
NTonofrite
RTminerals
SNBefore 1981, search selenates and selenites.
selenium  search
UFse
RTlithophile elements
 chalcophile elements
 chemical elements
 onofrite
Selennyakh River  search
BTCommonwealth of Independent States
 .Russian Federation
 ..Yakutia Russian Federation
 ...Selennyakh River
UFSelenyak River
SNRiver which rises in the N Cherskiy Range and flows into the Indigirka River in NE Yakutia. This term has multiple hierarchies.
selenodesy  search
RTgeodesy
 geoid
 Moon
Selenyak River  search
USESelennyakh River
self reversal  search
USEreversals
self-organization  search
RTartificial intelligence
 data processing
 fractals
 patterns
 properties
 scale factor
 systems
 systems analysis
SNAdded to Thesaurus in 1995.
self-potential methods  search
BTgeophysical methods
 .electrical methods
 ..self-potential methods
UFspontaneous polarization
 spontaneous potential
RTwell-logging
 geophysical surveys
SNBefore 1978, also search self-potential.
self-reversals  search
USEreversals
self-similarity  search
RTfractals
 heterogeneity
 models
 patterns
 properties
 scale factor
 scale models
 systems
SNAdded to Thesaurus in 1995.
Seligdar Russian Federation  search
BTCommonwealth of Independent States
 .Russian Federation
 ..Yakutia Russian Federation
 ...Seligdar Russian Federation
SNTown in SE Yakutia. Before 1993, Seligdar Russian Republic was also used. This term has multiple hierarchies.
seligmannite  search
BTsulfosalts
 .sulfarsenites
 ..seligmannite
Selkirk Mountains  search
BTNorth America
 .Rocky Mountains
 ..Selkirk Mountains
NTEsplanade Range
UFSelkirks Mountains
RTU. S. Rocky Mountains
 Washington
 British Columbia
 Canadian Rocky Mountains
 Bonner County Idaho
 Boundary County Idaho
 Glacier National Park
SNRange in the Rocky Mountains in SE British Columbia extending into N Idaho and Washington. Indexed with province or state and county AND U. S. Rocky Mountains or Canadian Rocky Mountains as applicable.
Selkirks Mountains  search
USESelkirk Mountains
Sellafield England  search
BTEurope
 .Western Europe
 ..United Kingdom
 ...Great Britain
 ....England
 .....Cumbria England
 ......Sellafield England
UFWindscale Plant
RTnuclear facilities
SNSite of nuclear power plant and waste disposal site near village of Seascale, Cumbria, NW England. Also search Windscale.
Selma Group  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Mesozoic
 ...Cretaceous
 ....Upper Cretaceous
 .....Selma Group
RTMississippi
 Alabama
 Blufftown Formation
 Tennessee
 Eutaw Formation
 Mooreville Chalk
 Prairie Bluff Chalk
 Ripley Formation
SNAlabama, Mississippi and Tennessee. Added to Thesaurus in 1985.
Selukwe Zimbabwe  search
BTAfrica
 .Southern Africa
 ..Zimbabwe
 ...Selukwe Zimbabwe
SNTown in central Zimbabwe.
Selva  search
SNNot a valid term for GeoRef. See Copiapo Chile. Also may be used in other locations.
Selway-Bitterroot Wilderness  search
BTUnited States
 .Selway-Bitterroot Wilderness
RTIdaho
 Montana
 Bitterroot Range
 wilderness areas
 Idaho County Idaho
 Missoula County Montana
 Ravalli County Montana
SNE Idaho and W Montana. Indexed with states and counties as applicable. Added to Thesaurus in 1985.
Selwyn Basin  search
BTCanada
 .Western Canada
 ..Yukon Territory
 ...Selwyn Basin
RTCanadian Rocky Mountains
 Selwyn Mountains
SNE central Yukon Territory, Canada. Added to Thesaurus in 1985.
Selwyn Mountains  search
BTCanada
 .Selwyn Mountains
RTYukon Territory
 Northwest Territories
 Selwyn Basin
 Selwyn Range
SNOn border of Yukon Territory and Northwest Territories, W of the Mackenzie Mountains. Indexed with provinces as applicable. Added to Thesaurus in 1981.
Selwyn Range  search
BTAustralasia
 .Australia
 ..Queensland Australia
 ...Selwyn Range
RTSelwyn Mountains
SNW central Queensland.
SEM data  search
UFscanning electron microscopy data
RTelectron microscopy
 data
 electron microscopy data
 scanning electron microscopy
 TEM data
 transmission electron microscopy
SNFor the method, see scanning electron microscopy.
Semail Ophiolite  search
UFOman Ophiolite
 Samail Ophiolite
 Sumail Ophiolite
RTCretaceous
 United Arab Emirates
 Oman
 Oman Mountains
SNOman Mountains, N and E Oman. Added to Thesaurus in 1989.
Semarkona Meteorite  search
BTmeteorites
 .stony meteorites
 ..chondrites
 ...LL chondrites
 ....Semarkona Meteorite
RTIndia
 Madhya Pradesh India
SNImpact in Chhindwara District, Madhya Pradesh, India. Added to Thesaurus in 1989.
Semata Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Quarternary
 ....Pleistocene
 .....Semata Formation
RTJapan
Semenic Mountains  search
BTEurope
 .Southern Europe
 ..Romania
 ...Semenic Mountains
RTBanat
SNCentral Banat. Also search Semenic.
semi-arid environment  search
BTterrestrial environment
 .semi-arid environment
UFsemiarid regions
RTecology
 geomorphology
 depositional environment
 climate
 arid environment
 sebkha environment
SNBefore 1978, also search semi-arid; semiarid.
semi-infinite models  search
RTinfinite models
 mathematical models
 models
SNAdded to Thesaurus in 1981.
semi-variograms  search
USEsemivariograms
semiarid regions  search
USEsemi-arid environment
semifusinite  search
BTmacerals
 .inertinite
 ..semifusinite
RTvitrinite
 fusinite
SNAdded to Thesaurus in 1995.
Semino  search
Seminoe Mountains  search
BTUnited States
 .Wyoming
 ..Carbon County Wyoming
 ...Seminoe Mountains
RTRocky Mountains
SNCentral Wyoming. Added to Thesaurus in 1985.
Seminole County Florida  search
BTUnited States
 .Florida
 ..Seminole County Florida
SNE central Florida.
Seminole County Georgia  search
BTUnited States
 .Georgia
 ..Seminole County Georgia
SNExtreme SW Georgia.
Seminole County Oklahoma  search
BTUnited States
 .Oklahoma
 ..Seminole County Oklahoma
SNCentral Oklahoma.
Seminole Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Carboniferous
 ....Pennsylvanian
 .....Upper Pennsylvanian
 ......Missourian
 .......Seminole Formation
RTOklahoma
SNIn Skiatook Group. Includes Lenapah Limestone, Nowata Shale, Memorial Shale. NE, central, and central S Oklahoma.
Semipalatinsk Kazakhstan  search
BTCommonwealth of Independent States
 .Kazakhstan
 ..Semipalatinsk Kazakhstan
NTAkzhal Kazakhstan
 Chingis-Tau
SNOblast and city in NE Kazakhstan. This term has multiple hierarchies.
semitropical environment  search
USEsubtropical environment
semivariograms  search
BTstatistical analysis
 .variance analysis
 ..semivariograms
UFsemi-variograms
RTmathematical geology
 mathematical methods
 geostatistics
 covariance analysis
 variograms
SNAdded to Thesaurus in 1985.
Semmering  search
BTEurope
 .Central Europe
 ..Austria
 ...Semmering
RTLower Austria
 Styria Austria
SNResort area in Eastern Alps.
Semri Series  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Cambrian
 ....Semri Series
RTIndia
 Bihar India
 Uttar Pradesh India
 Madhya Pradesh India
 Vindhyan
 Kaimur Sandstone
semseyite  search
BTsulfosalts
 .sulfantimonites
 ..semseyite
senarmontite  search
BToxides
 .senarmontite
Sendai Japan  search
BTnshu
 .Miyagi Japan
 ..Sendai Japan
SNCity near E coast in Miyagi Prefecture, N Honshu.
Seneca County New York  search
BTUnited States
 .New York
 ..Seneca County New York
RTCayuga Lake
 Seneca Lake
SNW central New York.
Seneca County Ohio  search
BTUnited States
 .Ohio
 ..Seneca County Ohio
RTSandusky River basin
SNN Ohio.
Seneca Lake  search
BTUnited States
 .New York
 ..Finger Lakes
 ...Seneca Lake
RTSeneca County New York
 Yates County New York
SNOne of the Finger Lakes in Seneca and Yates counties. Also search Seneca. Indexed with counties as applicable.
Senegal  search
BTAfrica
 .West Africa
 ..Senegal
NTDakar Senegal
RTSahel
 Senegal Basin
 Senegal River
 Mauritanides
SNFormerly a republic in French Community. Achieved independence in 1960.
Senegal Basin  search
BTAfrica
 .West Africa
 ..Senegal Basin
UFSenegal River basin
RTMauritania
 Mali
 Senegal
 Guinea
SNRiver basin. Indexed with countries as applicable.
Senegal River  search
BTAfrica
 .Senegal River
RTMauritania
 Mali
 Senegal
 Guinea
SNRises in the highlands of Guinea and flows N and then NW into the Atlantic Ocean at Saint-Louis in Senegal. Indexed with countries as applicable.
Senegal River basin  search
USESenegal Basin
Senonian  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Mesozoic
 ...Cretaceous
 ....Upper Cretaceous
 .....Senonian
NTCampanian
 Coniacian
 Futaba Group
 Izumi Group
 Maestrichtian
 Santonian
SNEurope. Above Turonian, below Danian.
sensing, remote  search
USEremote sensing
sensitive clays  search
RTclay
 clays
SNAdded to Thesaurus in 1981.
sensitive high mass-resolution ion microprobe data  search
USESHRIMP data
sensitivity analysis  search
RTbaseline studies
 mathematical methods
 mathematical models
 numerical analysis
 quality control
 reactivity
SNAdded to Thesaurus in 1989.
sensors  search
SNNot a valid term for GeoRef. See geophysical methods, chemical analysis, transducers or instruments for specific description of methods.
Sentinel Butte Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Paleogene
 ....Paleocene
 .....Sentinel Butte Formation
RTMontana
 North Dakota
 Fort Union Formation
SNIn Fort Union Formation. Overlies Tongue River Member. NE Montana, and SW North Dakota.
separation  search
RTmixing
 processes
sepiolite  search
BTsilicates
 .sheet silicates
 ..clay minerals
 ...sepiolite
UFmeerschaum
Sept-Iles Quebec  search
BTCanada
 .Eastern Canada
 ..Quebec
 ...Saguenay County Quebec
 ....Sept-Iles Quebec
UFSeven Isles Quebec
SNCity on the Saint Lawrence River in SE Quebec.
septa  search
UFseptae
RTmorphology
 fossils
septae  search
USEsepta
septaria  search
BTsedimentary structures
 .secondary structures
 ..septaria
RTconcretions
 cone-in-cone
Septibranchia  search
BTInvertebrata
 .Mollusca
 ..Bivalvia
 ...Septibranchia
Sequanian  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Mesozoic
 ...Jurassic
 ....Upper Jurassic
 .....Sequanian
SNEurope.
Sequatchie County Tennessee  search
BTUnited States
 .Tennessee
 ..Sequatchie County Tennessee
Sequatchie River valley  search
USESequatchie Valley
Sequatchie Valley  search
BTUnited States
 .Tennessee
 ..Sequatchie Valley
UFSequatchie River valley
SNRiver valley in SE central Tennessee. Indexed with counties as applicable.
sequence stratigraphy  search
UFsequences, stratigraphic
RTstratigraphy
 paleogeography
 unconformities
 Fischer plots
 cyclostratigraphy
 lowstands
 lithostratigraphy
 highstands
 seismic stratigraphy
 parasequences
 retrogradation
SNAdded to Thesaurus in 1993.
sequences, stratigraphic  search
USEsequence stratigraphy
Sequoia  search
BTPlantae
 .Spermatophyta
 ..Gymnospermae
 ...Coniferales
 ....Taxodiaceae
 .....Sequoia
SNGenus.
Sequoyah County Oklahoma  search
BTUnited States
 .Oklahoma
 ..Sequoyah County Oklahoma
Serajevo Bosnia-Herzegovina  search
USESarajevo Bosnia-Herzegovina
Serbia  search
BTEurope
 .Southern Europe
 ..Yugoslavia
 ...Serbia
NTAleksinac Yugoslavia
 Belgrade Yugoslavia
 Bor Yugoslavia
 Kopaonik
 Kosovo-Metohija Yugoslavia
 Kostolac
 Majdanpek Yugoslavia
 Soko Banja Yugoslavia
 Timok Basin
 Vojvodina Yugoslavia
 Western Morava River
 Zlatibor Mountains
UFServia
RTMediterranean region
 Balkan Peninsula
 Banat
 Danube River
 Danube Valley
 Morava River valley
 Pannonia
 Pannonian Basin
 Balkan Mountains
 Krajiste
 Macedonia
 Moesia
 Osogovo Mountains
 Serbo-Macedonian Massif
 Tisza River
SNSince 1991, associated with Montenegro in modern Federal Republic of Yugoslavia. Before 1995, used as republic of E and NE former Yugoslavia. Formerly Servia.
Serbo-Macedonian Massif  search
BTEurope
 .Southern Europe
 ..Serbo-Macedonian Massif
RTYugoslavia
 Serbia
 Greece
 Yugoslav Macedonia
 Macedonia
 Greek Macedonia
SNMacedonia and S Serbia. Indexed with republics or regions as applicable.
Serebryanka Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Mesozoic
 ...Triassic
 ....Lower Triassic
 .....Serebryanka Formation
RTMiddle Triassic
 Russian Federation
 Ukraine
SNLower and Middle Triassic (?). SE and E Ukraine and adjoining area in Russian Federation.
Sereth River  search
USESiret River
Sergipe Basin  search
USESergipe-Alagoas Basin
Sergipe Brazil  search
BTSouth America
 .Brazil
 ..Sergipe Brazil
NTAracaju Brazil
 Propria Geosyncline
RTSao Francisco Basin
 Sergipe-Alagoas Basin
SNState in NE Brazil.
Sergipe-Alagoas Basin  search
BTSouth America
 .Brazil
 ..Sergipe-Alagoas Basin
UFSergipe Basin
RTAlagoas Brazil
 Sergipe Brazil
SNIn NE Brazil. Indexed with states as applicable.
sericit  search
sericite  search
BTsilicates
 .sheet silicates
 ..mica group
 ...sericite
RTmuscovite
sericitization  search
BTmetasomatism
 .sericitization
RThydrothermal alteration
Series 1  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Cambrian
 ....Series 1
NTStage 1
 Stage 2
Series 2  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Cambrian
 ....Series 2
NTStage 3
 Stage 4
Series 3  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Cambrian
 ....Series 3
NTStage 5
 Stage 7
 Drumian
Serov Russian Federation  search
BTCommonwealth of Independent States
 .Russian Federation
 ..Sverdlovsk Russian Federation
 ...Serov Russian Federation
BTAsia
 .Serov Russian Federation
SNCity in Sverdlovsk Oblast E of Urals. Before 1993, Serov Russian Republic was also used. This term has multiple hierarchies.
Serozem  search
USESierozems
Serpentes  search
BTChordata
 .Vertebrata
 ..Tetrapoda
 ...Reptilia
 ....Diapsida
 .....Lepidosauria
 ......Squamata
 .......Serpentes
NTColubridae
UFOphidia
SNSuborder. Snakes.
serpentine  search
BTsilicates
 .sheet silicates
 ..serpentine group
 ...serpentine
RTcerolite
serpentine group  search
BTsilicates
 .sheet silicates
 ..serpentine group
NTantigorite
 chrysotile
 garnierite
 lizardite
 serpentine
SNBefore 1993, cerolite was considered a narrower term.
serpentine rock  search
USEserpentinite
serpentinite  search
BTmetamorphic rocks
 .metasomatic rocks
 ..serpentinite
BTmetamorphic rocks
 .metaigneous rocks
 ..serpentinite
UFserpentine rock
RTserpentinization
SNCompositional term. This term has multiple hierarchies.
serpentinization  search
BTmetasomatism
 .serpentinization
RTprocesses
 alteration
 hydrothermal alteration
 serpentinite
Serpukhovian  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Carboniferous
 ....Mississippian
 .....Serpukhovian
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Carboniferous
 ....Mississippian
 .....Upper Mississippian
 ......Serpukhovian
SNAdded to Thesaurus in 1989.
Serpulidae  search
BTInvertebrata
 .Vermes
 ..Polychaetia
 ...Serpulidae
SNFamily.
Serra do Espinhaco  search
BTSouth America
 .Brazil
 ..Serra do Espinhaco
RTMinas Gerais Brazil
 Bahia Brazil
SNMountain range, E central Brazil. Added to Thesaurus in 1985.
Serra do Mar  search
BTSouth America
 .Brazil
 ..Serra do Mar
RTParana Brazil
 Sao Paulo Brazil
 Santa Catarina Brazil
SNCoastal mountain range in S and SE Brazil. Indexed with states as applicable.
Serra do Navio Brazil  search
BTSouth America
 .Brazil
 ..Amapa Brazil
 ...Serra do Navio Brazil
SNTown in central Amapa, N Brazil.
Serra Geral Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Mesozoic
 ...Serra Geral Formation
RTJurassic
 Cretaceous
 Brazil
 Sao Paulo Brazil
 Paraguay
Serrania de Cuenca  search
BTEurope
 .Southern Europe
 ..Iberian Peninsula
 ...Spain
 ....Serrania de Cuenca
RTGuadalajara Spain
 Cuenca Spain
 Iberian Mountains
SNMountain range in E central Spain. Indexed with provinces as applicable.
Serrania de Ronda  search
BTEurope
 .Southern Europe
 ..Iberian Peninsula
 ...Spain
 ....Andalusia Spain
 .....Serrania de Ronda
BTEurope
 .Southern Europe
 ..Iberian Peninsula
 ...Spain
 ....Betic Cordillera
 .....Serrania de Ronda
UFRonda Massif
 Ronda Sierra
 Ronda, Serrania de
 Sierra de Ronda
RTCadiz Spain
 Malaga Spain
SNSpur of the Cordillera Penibetica in Andalusia. This term has multiple hierarchies. Indexed with provinces as applicable.
Serravallian  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Neogene
 ....Miocene
 .....Serravallian
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Neogene
 ....Miocene
 .....middle Miocene
 ......Serravallian
SNEurope.
Servia  search
USESerbia
Sesia Valley  search
BTEurope
 .Southern Europe
 ..Italy
 ...Sesia Valley
RTPiemonte Italy
SNRiver valley E of Lago Maggiore in N Italy.
Sesia Zone  search
BTEurope
 .Southern Europe
 ..Italy
 ...Piemonte Italy
 ....Sesia Zone
RTSesia-Lanzo Zone
SNN Piemonte.
Sesia-Lanzo Zone  search
BTEurope
 .Southern Europe
 ..Italy
 ...Sesia-Lanzo Zone
RTPiemonte Italy
 Lombardy Italy
 Alps
 Sesia Zone
SNN Piemonte and N Lombardy. Indexed with autonomous regions as applicable.
Sespe Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Paleogene
 ....Sespe Formation
RTOligocene
 California
 upper Eocene
SNUpper Eocene and Oligocene. Overlying Coldwater Sandstone Member of Tejon Formation and underlying Vaqueros Formation. In S California. Indexed with ages as applicable.
Sete France  search
BTrault France
 .Sete France
UFCete France
SNCity on Gulf of Lion in S Herault, S France. Before 1978, also search Cette.
Seto Inland Sea  search
USEInland Sea
Seto Sea  search
USEInland Sea
Seto-chi-umi  search
USEInland Sea
Seto-Naikai  search
USEInland Sea
Setouchi  search
USEInland Sea
Sette Daban (Range)  search
USESette-Daban Range
Sette-Daban Range  search
BTCommonwealth of Independent States
 .Russian Federation
 ..Sette-Daban Range
BTAsia
 .Sette-Daban Range
UFSette Daban (Range)
RTYakutia Russian Federation
 Khabarovsk Russian Federation
SNNW Khabarovsk Kray and SE Yakutia. Also search Sette-Daban. This term has multiple hierarchies.
Setting Lake  search
BTCanada
 .Western Canada
 ..Manitoba
 ...Setting Lake
SNCentral Manitoba.
settlement  search
RTcompactness
 foundations
 land subsidence
 raft foundations
 engineering geology
 settling
 soil mechanics
settling  search
RTdeposition
 hydrology
 laboratory studies
 rates
 sediment transport
 sedimentation rates
 settlement
 sedimentation
 siltation
 suspended materials
 suspension
 transport
 velocity
SNFor engineering studies, use settlement.
Setubal Portugal  search
BTEurope
 .Southern Europe
 ..Iberian Peninsula
 ...Portugal
 ....Setubal Portugal
RTIberian pyrite belt
 Estremadura Portugal
SNDistrict in SW Portugal.
Sevan Armenia  search
BTEurope
 .Armenia
 ..Sevan Armenia
RTLake Sevan
SNTown on shore of Lake Sevan in N Armenia. This term has multiple hierarchies.
Seven Devils Mountains  search
BTUnited States
 .Idaho
 ..Seven Devils Mountains
RTAdams County Idaho
 Idaho County Idaho
SNRange in Adams and Idaho counties in W Idaho. Indexed with counties as applicable.
Seven Isles Quebec  search
USESept-Iles Quebec
Seven Rivers Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Permian
 ....Guadalupian
 .....Seven Rivers Formation
RTNew Mexico
 Texas
SNSE New Mexico and W Texas. Added to Thesaurus in 1985.
Severin  search
BTEurope
 .Southern Europe
 ..Banat
 ...Severin
BTEurope
 .Southern Europe
 ..Romania
 ...Severin
SNFormer province whose capital was Caransebes. Much of the province is now Caras-Severin County. This term has multiple hierarchies.
Severn Estuary  search
RTEngland
 Maryland
 Virginia
 Wales
SNEngland or Wales. Also near Chesapeake Bay of Maryland and Virginia. Indexed with counties or regions as applicable. Added to Thesaurus in 1989.
Severn Formation  search
RTDelaware
 Eocene
 K-T boundary
 Maryland
 United States
 Upper Cretaceous
SNNamed for exposures in cliffs at Round Bay on the Severn River. E Maryland and Delaware. Indexed with ages as applicable. Added to Thesaurus in 1989.
Severn Valley  search
RTEngland
 Great Britain
 Wales
SNRiver valley. Occurs in several locations. Also search Severn River. Search in combination with state or region. Indexed with regions as applicable.
Severnaya Zemlya  search
BTAsia
 .West Siberia
 ..Severnaya Zemlya
BTCommonwealth of Independent States
 .Russian Federation
 ..Severnaya Zemlya
SNThis term has multiple hierarchies. Added to Thesaurus in 1981.
Sevier County Arkansas  search
BTUnited States
 .Arkansas
 ..Sevier County Arkansas
SNSW Arkansas.
Sevier County Tennessee  search
BTUnited States
 .Tennessee
 ..Sevier County Tennessee
SNE Tennessee.
Sevier County Utah  search
BTUnited States
 .Utah
 ..Sevier County Utah
SNCentral Utah.
Sevier Desert  search
BTUnited States
 .Utah
 ..Sevier Desert
RTBasin and Range Province
 Millard County Utah
 Juab County Utah
SNW central Utah. Indexed with counties as applicable. Added to Thesaurus in 1985.
Sevier orogenic belt  search
BTUnited States
 .Sevier orogenic belt
UFSevier Orogeny
 Sevier Plateau
RTIdaho
 Utah
 Wyoming
SNCentral and W Utah, S Idaho and SW Wyoming. Also search Sevier AND belt; Sevier AND orogeny.
Sevier Orogeny  search
USESevier orogenic belt
Sevier Plateau  search
USESevier orogenic belt
Sevilla  search
USESeville City Spain
Seville City Spain  search
BTEurope
 .Southern Europe
 ..Iberian Peninsula
 ...Spain
 ....Andalusia Spain
 .....Seville Spain
 ......Seville City Spain
UFSevilla
SNRefers to only the city in SW Spain. Before 1993, also search Seville Spain.
Seville Spain  search
BTEurope
 .Southern Europe
 ..Iberian Peninsula
 ...Spain
 ....Andalusia Spain
 .....Seville Spain
NTCarmona Spain
 Seville City Spain
SNRefers only to the province in SW Spain. From 1981-1992, also search Seville Province and Spain. For the city, see Seville City Spain.
sewage  search
RTpollutants
 pollution
 sewage sludge
 waste disposal
sewage sludge  search
RTpollutants
 pollution
 sewage
 sludge
 soil treatment
 solid waste
 water quality
 waste disposal
SNBefore 1993, also search sewage and sludge. Added to Thesaurus in 1993.
Seward County Kansas  search
BTUnited States
 .Kansas
 ..Seward County Kansas
SNSW Kansas.
Seward County Nebraska  search
BTUnited States
 .Nebraska
 ..Seward County Nebraska
RTBig Blue River
SNSE Nebraska.
Seward Peninsula  search
BTUnited States
 .Alaska
 ..West-Central Alaska
 ...Seward Peninsula
RTNome Alaska
SNOn Bering Strait between Kotzebue and Norton sounds in W Alaska. Also search Seward AND Alaska.
sexual dimorphism  search
RTreproduction
Seychelles  search
BTIndian Ocean Islands
 .Seychelles
NTAldabra Island
 Mahe Island
RTIndian Ocean
SNOfficially designated as the Republic of Seychelles. Island group about 700 miles NE of Madagascar.
Seymour Island  search
UFMarambio Island
 Vicecomodoro Marambio Island
RTAntarctica
 East Pacific Ocean Islands
 Weddell Sea
 Galapagos Islands
 Lopez de Bertodano Formation
 Sobral Formation
 La Meseta Formation
SNIsland in the Weddell Sea, off the Antarctic Peninsula. Also one of the Galapagos Islands. Search in combination with Antarctica or Galapagos Islands. Indexed with Antarctica or Galapagos Islands as applicable. Added to Thesaurus in 1985.