str  search
Strabo Trench  search
BTMediterranean Sea
 .East Mediterranean
 ..Strabo Trench
RTLeg 13
 DSDP Site 129
SNE Mediterranean Sea. Added to Thesaurus in 1989.
Strafford County New Hampshire  search
BTw Hampshire
 .Strafford County New Hampshire
Straight Cliffs Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Mesozoic
 ...Cretaceous
 ....Upper Cretaceous
 .....Straight Cliffs Formation
RTUtah
SNCentral S Utah. Added to Thesaurus in 1995.
Straight Creek Fault  search
BTNorth America
 .Straight Creek Fault
RTWashington
 British Columbia
 Cascade Range
 Coast Ranges
SNW Washington and SW British Columbia. Indexed with Washington and British Columbia as applicable. Added to Thesaurus in 1985.
strain  search
RTbrittleness
 deformation
 distortion
 elastic limit
 elastic strain
 elasticity
 finite strain analysis
 Hooke's law
 hysteresis
 mechanical properties
 Poisson's ratio
 rock mechanics
 shear
 shear strength
 shear zones
 engineering geology
 seismology
 strainmeters
 stre
strain relaxation  search
RTrelaxation
 seismology
SNAdded to Thesaurus in 1981.
strain seismographs  search
BTseismographs
 .strain seismographs
SNAdded to Thesaurus in 1981.
strain-slip cleavage  search
USEslip cleavage
strainmeters  search
RTdeformation
 extensometers
 geodesy
 strain
 stressmeters
Strait of Georgia  search
BTNorth America
 .Strait of Georgia
RTWashington
 British Columbia
 Northeast Pacific
 Saanich Inlet
SNChannel between Vancouver Island on the W and the mainland of British Columbia and Washington on the E. Indexed with British Columbia and/or Washington as applicable.
Strait of Gibraltar  search
RTAtlantic Ocean
 Ceuta
 Gibraltar
 Mediterranean Sea
 West Mediterranean
SNPassage connecting Mediterranean Sea and the Atlantic Ocean between Spain and Morocco. Indexed with West Mediterranean and/or North Atlantic as applicable.
Strait of Juan de Fuca  search
USEJuan de Fuca Strait
Strait of Malacca  search
BTAsia
 .Strait of Malacca
UFMalacca Strait
 Malacca Straits
 Straits of Malacca
RTIndian Ocean
 Bay of Bengal
 Sumatra
 Far East
 South China Sea
 Malay Peninsula
SNChannel between the S Malay Peninsula and the island of Sumatra connecting the Indian Ocean with the South China Sea.
Strait of Messina  search
BTEurope
 .Southern Europe
 ..Italy
 ...Strait of Messina
UFMessina Strait
SNBetween Italy and NE Sicily.
Strait of Sicily  search
BTMediterranean Sea
 .Strait of Sicily
RTEast Mediterranean
 West Mediterranean
 ODP Site 963
SNBetween Sicily and Tunisia.
Straits of Florida  search
BTAtlantic Ocean
 .North Atlantic
 ..Straits of Florida
UFFlorida Strait
 Florida Straits
RTGulf of Mexico
 Leg 101
 Northwest Providence Channel
 Leg 166
 ODP Site 626
SNWide channel between Florida Keys and Cuba connecting the Atlantic Ocean with the Gulf of Mexico.
Straits of Malacca  search
USEStrait of Malacca
Stramberk Czech Republic  search
BTEurope
 .Central Europe
 ..Czech Republic
 ...Moravia
 ....Stramberk Czech Republic
SNTown SSW of Ostrava in NE Moravia, E Czech Republic. Before 1995, Stramberk Czechoslovakia was also used.
Strandzha Mountains  search
USEIstranca Mountains
Strasbourg France  search
BTEurope
 .Western Europe
 ..France
 ...Bas-Rhin France
 ....Strasbourg France
UFStrassburg France
SNCity on the Rhine River in Alsace, E Bas-Rhin, NE France.
Strassburg France  search
USEStrasbourg France
strata  search
USEstratigraphic units
strata-bound deposits  search
USEstratabound deposits
stratabound deposits  search
UFstrata-bound deposits
RTmineral deposits, genesis
 besshi-type deposits
 kuroko-type deposits
 mantos
 stratiform deposits
SNBefore 1978, search stratabound AND (ore deposits OR deposits); strata-bound.
strategic materials  search
USEstrategic minerals
strategic miner  search
strategic minerals  search
UFstrategic materials
RTmineral resources
 economics
 international cooperation
 economic geology
 legislation
 policy
 public policy
 Exclusive Economic Zone
 United States Exclusive Economic Zone
 wars
 reserves
 NURE
SNAdded to Thesaurus in 1985.
Strathclyde region Scotland  search
BTEurope
 .Western Europe
 ..United Kingdom
 ...Great Britain
 ....Scotland
 .....Strathclyde region Scotland
NTAyrshire Scotland
 Glasgow Scotland
 Islay
 Kintyre
 Mull Island
RTArgyllshire Scotland
 Firth of Clyde
 Arran
 Loch Lomond
 Inner Hebrides
SNAdministrative region in W Scotland created in 1975 from most of Argyllshire including Mull Island, Bute, Ayrshire, Lanarkshire, and Renfrewshire.
Strathcona Mine  search
BTCanada
 .Eastern Canada
 ..Ontario
 ...Strathcona Mine
RTmines
 copper ores
 nickel ores
SNCopper and nickel ores.
stratification  search
RTbedding
 cross-stratification
 deposition
 laminations
 layered materials
 planar bedding structures
 sedimentary structures
SNAs of 1994, it may be used as a general term. Indexed with planar bedding structures as applicable.
stratified volcanic cone  search
USEstratovolcanoes
stratified volcano  search
USEstratovolcanoes
stratiform deposits  search
UFstratiform ore deposits
RTmineral deposits, genesis
 stratabound deposits
SNBefore 1978, search stratiform AND (ore deposits OR deposits).
stratiform ore deposits  search
USEstratiform deposits
stratigrap  search
stratigraphic  search
SNA valid term through 1977. After 1977, use stratigraphic maps.
stratigraphic boundary  search
NTK-T boundary
 Permian-Triassic boundary
UFboundaries, stratigraphic
RTallostratigraphy
 stratigraphy
 stratigraphic columns
 stratotypes
SNBefore 1993, also search boundary which was used for this concept from 1978-1992. Use in combination with appropriate age terms (list E). Added to Thesaurus in 1993.
stratigraphic columns  search
RTcross sections
 stratigraphic boundary
 stratigraphic units
 stratigraphy
 stratotypes
 type sections
SNAdded to Thesaurus in 1982.
stratigraphic controls  search
RTcontrols
 lithologic controls
 mineral deposits, genesis
 structural controls
SNAs of 1993, restricted to economic studies.
stratigraphic correlation  search
USEcorrelation
stratigraphic gaps  search
UFgaps, stratigraphic
 hiatus, stratigraphic
RTstratigraphy
 unconformities
 hardground
 lithostratigraphy
SNBefore 1998, also search hiatus or hiatuses. Added to Thesaurus in 1981.
stratigraphic geology  search
USEstratigraphy
stratigraphic maps  search
BTmaps
 .stratigraphic maps
RTstructural maps
SNBefore 1978, search maps AND stratigraphic.
stratigraphic range  search
USErange
stratigraphic traps  search
BTtraps
 .stratigraphic traps
UFlithologic traps
 porosity traps
RToil and gas fields
 petroleum
 petroleum exploration
 natural gas
 stratigraphic wedges
 petroleum accumulation
 structural traps
stratigraphic units  search
UFstrata
 units, stratigraphic
RTallostratigraphy
 stratigraphy
 biozones
 stratigraphic columns
 tectonostratigraphic units
 lithostratigraphy
stratigraphic wedges  search
UFpinch-outs
 pinchouts
RToil and gas fields
 stratigraphy
 petroleum
 petroleum exploration
 reservoir rocks
 natural gas
 lithofacies
 lithostratigraphy
 petroleum accumulation
 stratigraphic traps
SNUsed for beds that pinch out. Added to Thesaurus in 1981.
stratigraphy  search
UFstratigraphic geology
RTbiogeography
 biomarkers
 allostratigraphy
 aminostratigraphy
 biostratigraphy
 continental drift
 catalogs
 bibliography
 Continental Offshore Stratigraphic Test
 cross sections
 correlation
 biozones
 chemostratigraphy
 chronostratigraphy
 cyclostratigraphy
 diachroni
SNUsed for the discipline as a whole.
Stratigraphy (category)  search
SNStratigraphy, GeoRef category code 12, 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.).
stratosphere  search
RTash clouds
 atmosphere
 troposphere
SNUsually out-of-scope. Used with atmosphere.
stratotypes  search
RTstratigraphic boundary
 stratigraphic columns
 stratigraphy
 type sections
stratovolcanoes  search
BTvolcanoes
 .stratovolcanoes
UFbedded volcano
 composite cone
 composite volcano
 stratified volcanic cone
 stratified volcano
RTcones
 shield volcanoes
Strawn Series  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Carboniferous
 ....Pennsylvanian
 .....Strawn Series
RTNew Mexico
 Texas
SNComprises Millsap Lake and Lone Camp groups.
stre  search
stream action  search
SNNot a valid index term for GeoRef. See streams and sedimentation.
stream capture  search
UFcapture
 piracy
 river capture
 river piracy
 robbery
 stream piracy
 stream robbery
RTgeomorphology
 avulsion
 rivers
 rivers and streams
 streams
 tributaries
stream flow  search
USEstreamflow
stream gradient  search
RTknickpoints
 rivers and streams
 streams
SNBefore 1978, search streams AND gradient.
stream order  search
BTfluvial features
 .stream order
UFchannel order
RTgeomorphology
 streams
 drainage patterns
 tributaries
stream piracy  search
USEstream capture
stream placers  search
BTplacers
 .stream placers
RTmineral resources
 rivers
 rivers and streams
 streams
 beach placers
 heavy mineral deposits
 stream sediments
SNAdded to Thesaurus in 1982.
stream robbery  search
USEstream capture
stream s  search
stream sediments  search
UFfluvial sediments
RTglacial geology
 fluvial features
 placers
 sediments
 fluvial environment
 streams
 geochemical surveys
 stream placers
 mineral exploration
 glaciofluvial environment
SNBefore 1998, used chiefly for economic studies. Also search fluvial environment and sediments. Also search stream sampling.
stream transport  search
UFfluvial transport
RTsedimentation
 solute transport
 transport
 rivers
 rivers and streams
 streams
 sediment transport
 bedload
 gravel-bed streams
 fluvial currents
 thalwegs
 fluvial sedimentation
streamers  search
RTacoustical methods
 deep-tow methods
 hydrophones
 marine methods
 methods
 seismic methods
SNIndexed with methods as applicable. Added to Thesaurus in 1995.
streamflow  search
UFstream flow
RTflows
 streams
 surface water
 channels
 runoff
 discharge
SNAdded to Thesaurus in 1989.
streams  search
NTbraided streams
 ephemeral streams
 gravel-bed streams
RTavulsion
 bedload
 canals
 cascades
 channel geometry
 channelization
 channels
 drainage patterns
 efficiency
 exsurgence
 fluvial currents
 fluvial environment
 fluvial features
 hydrogeology
 hydrosphere
 ice streams
 knickpoints
 levees
 meanders
 oxbow lakes
 rapids
 ril
SNAs of 1981, use fluvial environment for type of environment. Also search alluvial. Indexed with fluvial features as applicable.
strengite  search
BTphosphates
 .strengite
strength  search
RTcompressive strength
 deformation
 fatigue
 fracture strength
 mechanical properties
 rock mechanics
 shear strength
 stress
 stressmeters
 tensile strength
 thixotropy
 weak rocks
 yield strength
Streptognathodus  search
BTmicrofossils
 .Conodonta
 ..Streptognathodus
SNGenus.
stress  search
RTbearing capacity
 Boussinesq equation
 brittleness
 creep
 deformation
 elasticity
 extensometers
 failures
 fatigue
 finite strain analysis
 Hooke's law
 hysteresis
 Poisson's ratio
 pore pressure
 pressure
 relaxation
 release fractures
 rigidity
 rock mechanics
 rupture
stress drops  search
RTcoseismic processes
 earthquake prediction
 earthquakes
 precursors
 stress
 seismology
SNAdded to Thesaurus in 1985.
stress fields  search
RTdeformation
 stress
SNAdded to Thesaurus in 1985.
stressmeters  search
RTdeformation
 instruments
 rock mechanics
 strainmeters
 strength
 stress
 engineering geology
SNAdded to Thesaurus in 1989.
stretch modulus  search
USEYoung's modulus
striations  search
BTsedimentary structures
 .bedding plane irregularities
 ..striations
RTglacial geology
 furrows
 glacial features
 grooves
 slickenlines
Strigiformes  search
BTChordata
 .Vertebrata
 ..Tetrapoda
 ...Aves
 ....Neornithes
 .....Strigiformes
SNOrder.
strike  search
UFline of strike
RTfaults
 folds
 fractures
 bedding
 joints
 cleats
 dip
 orientation
 strike-slip faults
 strike faults
SNTerm used to indicate strike faults through 1977. After 1977, use strike faults when discussing type of faults.
strike faults  search
BTfaults
 .strike faults
UFlongitudinal faults
RTstrike
SNBefore 1978, also search faults AND longitudinal; faults AND strike.
strike-shift faults  search
USEstrike-slip faults
strike-slip faults  search
BTfaults
 .strike-slip faults
NTtransfer faults
 transform faults
UFstrike-shift faults
RTstrike
 transcurrent faults
 pull-apart basins
 transtension
 left-lateral faults
 oblique-slip faults
SNBefore 1978, also search strike-slip.
strip mines  search
USEstrip mining
strip mining  search
BTmining
 .surface mining
 ..strip mining
UFstrip mines
RTmines
 bioreclamation
 mining geology
 reclamation
 environmental geology
 land use
 coal
 bioremediation
 remediation
 coal mines
 quarries
 open-pit mining
Stripa Mine  search
USEStripa region
Stripa region  search
BTEurope
 .Western Europe
 ..Scandinavia
 ...Sweden
 ....Orebro Sweden
 .....Stripa region
UFGuldsmedshyttan
 Stripa Mine
RTmines
 waste disposal
 radioactive waste
 waste disposal sites
 underground storage
SNRadioactive waste disposal site, N Orebro, Sweden. Former metals mining site. Before 1985, also search Stripa. Added to Thesaurus in 1985.
stromatactis  search
BTsedimentary structures
 .biogenic structures
 ..stromatactis
SNAdded to Thesaurus in 1989.
stromatolites  search
BTsedimentary structures
 .biogenic structures
 ..stromatolites
NTCollenia
RTalgae
 algal mats
 cyanobacteria
 reef builders
 thrombolites
 biostratigraphy
 calcareous algae
SNIndexed with algae if applicable. See list F (fossils).
Stromatoporoidea  search
BTInvertebrata
 .Coelenterata
 ..Stromatoporoidea
NTAmphipora
RTproblematic fossils
 Porifera
SNThis term has also been used with Porifera.
Stromboli  search
BTEurope
 .Southern Europe
 ..Italy
 ...Sicily Italy
 ....Lipari Islands
 .....Stromboli
RTvolcanoes
SNActive volcano on Stromboli Island of Lipari Group in Tyrrhenian Sea.
strombolian-type eruptions  search
RTeruptions
 volcanism
 volcanology
SNAdded to Thesaurus in 1982.
stromeyerite  search
BTsulfides
 .stromeyerite
Strona Valley  search
BTEurope
 .Southern Europe
 ..Italy
 ...Strona Valley
RTPiemonte Italy
SNRiver valley W of Lago Maggiore in N Italy.
strong motion  search
UFmotion, strong
RTseismology
 SMART2
 ground motion
Strong Motion Array Taiwan 2  search
USESMART2
strontianite  search
BTcarbonates
 .strontianite
strontium  search
BTmetals
 .alkaline earth metals
 ..strontium
NTRb-87/Sr-86
 Sr-85
 Sr-86
 Sr-87
 Sr-87/Sr-86
 Sr-89
 Sr-90
 Sr/Ca
UFSr
RTisotopes
 strontium ores
 Rb/Sr
 Sr/Sr
SNChemical element. As of 1982, use strontium ores for strontium as a commodity.
strontium ores  search
BTmetal ores
 .strontium ores
RTcelestine
 strontium
SNBefore 1982, also search (strontium OR Sr) AND (deposit OR deposits OR ore OR ores OR economic) in the basic index. Commodity. See List C.
Strophomena  search
BTInvertebrata
 .Brachiopoda
 ..Articulata
 ...Strophomenida
 ....Strophomena
SNGenus.
Strophomenida  search
BTInvertebrata
 .Brachiopoda
 ..Articulata
 ...Strophomenida
NTSowerbyella
 Strophomena
structural  search
SNA valid term through 1977. After 1977, use structural maps if applicable.
structural analysis  search
UFpetrogeometry
 petromorphology
RTfaults
 analysis
 geophysics
 breccia
 alpine-type features
 brittle deformation
 deformation
 folds
 fractures
 axial-plane structures
 cleavage
 flow cleavage
 foliation
 boudinage
 geometry
 electron microscopy
 conjugate faults
 dip
 elongate minerals
 fabric
 fold axes
SNUsed for the analysis of structural features on a relatively small scale (from thin section to outcrop). The analysis may lead to interpretation of larger-scale features such as folds, fractures, and faults, or tectonics. Before 1976, also search fabric a
structural basins  search
USEbasins
structural complexes  search
SNNo longer a valid term for GeoRef as of 1981. Use complexes.
structural controls  search
UFtectonic controls
RTsedimentation
 geomorphology
 mineral deposits, genesis
 controls
 geomorphologic controls
 diwa structure
 stratigraphic controls
structural features  search
SNNo longer a valid term for GeoRef as of mid-1978. Included use in geomorphology, structural geology and petrology (igneous rocks).
structural geology  search
RTallochthons
 alpine-type features
 bibliography
 catalogs
 faults
 folds
 foliation
 fractures
 geology
 glossaries
 inliers
 lexicons
 lineation
 maps
 orogeny
 relaxation
 stereographic projection
 structural analysis
 swells
 tectonics
SNUsed for the discipline as a whole.
Structural Geology (category)  search
SNStructural geology, GeoRef category code 16, 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.).
structural inversion  search
SNNot a valid term for GeoRef. As of 1998, use inversion tectonics OR basin inversion if applicable. For geomorphological studies, use relief inversion.
structural maps  search
BTmaps
 .structural maps
UFstructure maps
RTstructure contour maps
 stratigraphic maps
SNBefore 1978, search maps AND structural.
structural materials  search
SNNot a valid GeoRef index term after 1959. See building stone; clays; construction materials.
structural petrology  search
SNA valid term through 1974. After 1974, use structural analysis.
structural traps  search
BTtraps
 .structural traps
RTpetroleum
 petroleum exploration
 natural gas
 petroleum accumulation
 stratigraphic traps
structure  search
SNAs of 1981, no longer a valid index term.
structure contour maps  search
BTmaps
 .structure contour maps
RTcontour maps
 tectonic maps
 structural maps
structure maps  search
USEstructural maps
structure-soil interface  search
USEsoil-structure interface
structures  search
RTbuildings
 foundations
 engineering geology
SNTerm is restricted to engineering geology.
Struma River valley  search
BTEurope
 .Southern Europe
 ..Struma River valley
UFStruma Valley
RTBulgaria
 Greece
SNAlso search Struma; Struma River. Indexed with countries as applicable.
Struma Valley  search
USEStruma River valley
Strunian  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Devonian
 ....Upper Devonian
 .....Strunian
SNAdded to Thesaurus in 1981.
struvite  search
BTphosphates
 .struvite
Strzegom Poland  search
BTEurope
 .Central Europe
 ..Poland
 ...Walbrzych Poland
 ....Strzegom Poland
SNCity in Lower Silesia in N Walbrzych, SW Poland.
Strzegom-Sobotka Granitoid Massif  search
USEStrzegom-Sobotka Massif
Strzegom-Sobotka Massif  search
BTEurope
 .Central Europe
 ..Poland
 ...Walbrzych Poland
 ....Strzegom-Sobotka Massif
UFStrzegom-Sobotka Granitoid Massif
RTLower Silesia
SNGranitoid massif in Lower Silesia.
Strzelin Poland  search
BTEurope
 .Central Europe
 ..Poland
 ...Wroclaw Poland
 ....Strzelin Poland
SNCity of Lower Silesia in S Wroclaw, SW Poland.