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Data sets Publications Expeditions Thesaurus
Da  search
Da Hinggan Ling  search
BTAsia
 .Far East
 ..China
 ...Da Hinggan Ling
UFDaxinganling
 Great Khingan Range
 Greater Khingan Mountains
 Khingan Range
RTInner Mongolia China
 Heilongjiang China
SNMountainous system in N Inner Mongolia extending into NW Heilongjiang Province. Before 1993, also search Khingan; Da Hingan Ling. Indexed with provinces as applicable. Added to Thesaurus in 1993.
Da Lat  search
USEDalat Vietnam
Da-ching Field  search
USEDaqing Field
Dabie Mountains  search
BTAsia
 .Far East
 ..China
 ...Dabie Mountains
RTAnhui China
 Henan China
 Hubei China
SNSouth-central China, W Hubei, SE Anhui, SW Henan. Before 1993, also search Dabieshan and Dabie Shan. Added to Thesaurus in 1993.
dac  search
Dachang Deposit  search
BTAsia
 .Far East
 ..China
 ...Guangxi China
 ....Dachang Deposit
RTpolymetallic ores
 gold ores
 antimony ores
 tin ores
SNNandan County, NW Guangxi. Added to Thesaurus in 1993.
Dacht-e-Nawar  search
USEDasht-i-Nawar
Dacian  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Neogene
 ....Pliocene
 .....Dacian
SNEurope.
Dacian Basin  search
BTEurope
 .Southern Europe
 ..Romania
 ...Dacian Basin
SNRegion roughly covering modern Romania.
dacite porphyry  search
BTigneous rocks
 .volcanic rocks
 ..dacites
 ...dacite porphyry
RTporphyry
dacites  search
BTigneous rocks
 .volcanic rocks
 ..dacites
NTdacite porphyry
RTdacitic composition
 metadacite
dacitic composition  search
RTcomposition
 dacites
 igneous rocks
SNBefore 1982, also search dacitic. Added to Thesaurus in 1982.
Dacryoconarida  search
BTproblematic fossils
 .Dacryoconarida
RTMollusca
SNOrder.
Dactylioceratidae  search
BTInvertebrata
 .Mollusca
 ..Cephalopoda
 ...Tetrabranchiata
 ....Ammonoidea
 .....Dactylioceratidae
Dade County Florida  search
BTUnited States
 .Florida
 ..Dade County Florida
NTBiscayne Bay
 Miami Florida
RTFlorida Keys
 Biscayne Aquifer
SNS Florida.
Dade County Georgia  search
BTUnited States
 .Georgia
 ..Dade County Georgia
SNExtreme NW Georgia.
Dade County Missouri  search
BTUnited States
 .Missouri
 ..Dade County Missouri
SNSW Missouri.
Dadoxylon  search
BTPlantae
 .Spermatophyta
 ..Gymnospermae
 ...Dadoxylon
RTConiferales
 Cordaitales
 Ginkgoales
 Glossopteris
SNGenus.
Dagestan Russian Federation  search
BTCommonwealth of Independent States
 .Russian Federation
 ..Dagestan Russian Federation
BTEurope
 .Dagestan Russian Federation
NTMakhachkala Russian Federation
UFDaghestan Russian Federation
RTNorthern Caucasus
SNFormer Autonomous Soviet Socialist Republic on W shore of Caspian Sea. Before 1993, Dagestan Russian Republic was also used. This term has multiple hierarchies.
Daggett County Utah  search
BTUnited States
 .Utah
 ..Daggett County Utah
SNNE Utah.
Daghestan Russian Federation  search
USEDagestan Russian Federation
dahllite  search
BTcarbonates
 .dahllite
BTphosphates
 .dahllite
RTcarbonate apatite
SNThis term has multiple hierarchies.
Dahomey  search
USEBenin
Daiichi-Kashima Seamount  search
USEKashima Seamount
Daiiti-Kashima Seamount  search
USEKashima Seamount
daily variation  search
USEdiurnal variations
Daito Ridge  search
BTPacific Ocean
 .North Pacific
 ..Northwest Pacific
 ...Philippine Sea
 ....Daito Ridge
RTDSDP Site 445
SNNW Philippine Sea. This term has multiple hierarchies. Added to Thesaurus in 1981.
Dakar Senegal  search
BTAfrica
 .West Africa
 ..Senegal
 ...Dakar Senegal
SNCity on the Atlantic Ocean.
Dakhla Oasis  search
BTAfrica
 .North Africa
 ..Egypt
 ...Dakhla Oasis
RTWestern Desert
SNOasis in Western Desert of central Egypt. Added to Thesaurus in 1989.
Dakhla Shale  search
RTEgypt
 lower Tertiary
 Upper Cretaceous
SNUpper Cretaceous to lower Tertiary. Indexed with ages as applicable. Added to Thesaurus in 1989.
Dakota Aquifer  search
BTNorth America
 .Dakota Aquifer
RTUnited States
 Western Interior
SNCovers a large area in the Western Interior from Kansas to parts of Canada.
Dakota County Minnesota  search
BTUnited States
 .Minnesota
 ..Dakota County Minnesota
Dakota County Nebraska  search
BTUnited States
 .Nebraska
 ..Dakota County Nebraska
Dakota Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Mesozoic
 ...Cretaceous
 ....Dakota Formation
RTNew Mexico
 Wyoming
 Montana
 Oklahoma
 Colorado
 Nebraska
 North Dakota
 Minnesota
 Kansas
 South Dakota
 Moxa Arch
 Mesa Rica Sandstone
SNE Colorado, NE New Mexico, North Dakota, Kansas, Minnesota, SE Montana, Nebraska, South Dakota, W Oklahoma, E Wyoming.
Dalarna  search
BTEurope
 .Western Europe
 ..Scandinavia
 ...Sweden
 ....Dalarna
UFDalarne
 Dalecarlia
SNRegion in W central Sweden.
Dalarne  search
USEDalarna
Dalat Vietnam  search
BTAsia
 .Far East
 ..Vietnam
 ...Dalat Vietnam
UFDa Lat
SNTown NE of Saigon (Ho Chi Minh City), S Vietnam.
Dale County Alabama  search
BTUnited States
 .Alabama
 ..Dale County Alabama
Dalecarlia  search
USEDalarna
Dalgaranga  search
BTAustralasia
 .Australia
 ..Western Australia
 ...Dalgaranga
RTimpact features
 mesosiderite
SNRegion. West-central Western Australia. Also mesosiderite meteorite and meteor crater. As of 1993, use Dalgaranga Australia for the town. Use Dalgaranga Meteorite for the meteorite.
dalgo County Texas  search
NTMcAllen Ranch Field
dalgo Mexico  search
NTPachuca Mexico
Dalhart Basin  search
BTUnited States
 .Texas
 ..Dalhart Basin
SNTexas Panhandle. Added to Thesaurus in 1985.
Dallam County Texas  search
BTUnited States
 .Texas
 ..Dallam County Texas
Dallas County Alabama  search
BTUnited States
 .Alabama
 ..Dallas County Alabama
SNS central Alabama.
Dallas County Arkansas  search
BTUnited States
 .Arkansas
 ..Dallas County Arkansas
SNS central Arkansas.
Dallas County Iowa  search
BTUnited States
 .Iowa
 ..Dallas County Iowa
SNCentral Iowa.
Dallas County Missouri  search
BTUnited States
 .Missouri
 ..Dallas County Missouri
SNSW central Missouri.
Dallas County Texas  search
BTUnited States
 .Texas
 ..Dallas County Texas
NTDallas Texas
SNN Texas.
Dallas Texas  search
BTUnited States
 .Texas
 ..Dallas County Texas
 ...Dallas Texas
SNCity in NE central Texas.
Dalmatia  search
BTEurope
 .Southern Europe
 ..Dalmatia
RTCroatia
 Montenegro
 Yugoslavia
 Adriatic Sea
 Mediterranean region
 Bosnia-Herzegovina
 Karst region
 Split Croatia
SNRegion, including many islands, which extends along the Adriatic Sea from Zadar on the N to near the Albanian border on the S. Sometimes the name is applied to most of the Croatian coast. Also index republics or regions as applicable.
Dalradian  search
UFDalradian Supergroup
RTPrecambrian
 Cambrian
 Silurian
 Devonian
 Scotland
 Ballachulish Complex
 Ireland
SNIreland and Scotland. Indexed with ages as applicable.
Dalradian Supergroup  search
USEDalradian
Dalslandian Orogeny  search
USESveconorwegian Orogeny
dam sites  search
USEdams
damage  search
RTcatastrophes
 corrosion
 destruction
 earthquakes
 effects
 engineering geology
 fires
 formation damage
 geochemistry
 geologic hazards
 landslides
SNUsed for damage resulting from natural phenomena. Also see degradation. Added to Thesaurus in 1981.
damage, radiation  search
USEradiation damage
Damara Orogeny  search
RTlower Paleozoic
 Namibia
 Neoproterozoic
 orogeny
 South Africa
 Southern Africa
 tectonics
SNNeoproterozoic to lower Paleozoic. Southern Africa. Indexed with age or ages as applicable. Added to Thesaurus in 1993.
Damara System  search
BTChronostratigraphic Units
 .Precambrian
 ..Proterozoic
 ...Damara System
RTNamibia
SNIncludes Khomas Series, Marble Series, and Quartzite Series, Chuos Tillite, and Otavi Series. In W Damaraland region. NW of Walvis Bay.
Damascus Syria  search
BTAsia
 .Middle East
 ..Syria
 ...Damascus Syria
SNCity in SW Syria.
Damkohler number  search
USEReynolds number
Damodar Valley  search
BTAsia
 .Indian Peninsula
 ..India
 ...Damodar Valley
RTBihar India
 West Bengal India
SNRiver valley. Indexed with states as applicable.
Dampier Ridge  search
BTPacific Ocean
 .South Pacific
 ..Southwest Pacific
 ...Tasman Sea
 ....Dampier Ridge
SNNE of Sidney in N Tasman Sea. This term has multiple hierarchies.
damping  search
USEattenuation
dams  search
NTarch dams
 concrete dams
 gravity dams
 natural dams
 rockfill dams
 tailings dams
UFdam sites
 damsites
RTland subsidence
 abutments
 embankments
 slope stability
 seismic response
 engineering geology
 rock mechanics
 reservoirs
 design
 construction
 foundations
 riprap
 geomembranes
 geotextiles
 ground-water dams
 grouting
 reinforced materials
 site exploration
 soil mech
damsites  search
USEdams
Damuda Series  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Permian
 ....Damuda Series
RTIndia
 Bihar India
 Madhya Pradesh India
 Barakar Stage
 Karharbari Stage
 Raniganj Formation
SNForms middle part of lower Gondwanas. Subdivided into three stages: Raniganj (series), Ironstone shales, and lower Damudas, afterwards called Barakars.
Dan River basin  search
BTUnited States
 .Dan River basin
RTVirginia
 North Carolina
SNIndexed with states as applicable.
Danakil  search
USEAfar
Danakil Depression  search
danburite  search
BTsilicates
 .framework silicates
 ..danburite
Dane County Wisconsin  search
BTUnited States
 .Wisconsin
 ..Dane County Wisconsin
NTLake Mendota
 Madison Wisconsin
SNS Wisconsin.
Dangerous Islands  search
USETuamotu Islands
Danian  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Paleogene
 ....Paleocene
 .....Danian
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Paleogene
 ....Paleocene
 .....lower Paleocene
 ......Danian
NTNiniyur Group
RTRoca Formation
 Ekofisk Formation
SNEurope. Above Maestrichtian (Cretaceous), below Montian.
Daniel's Harbour Newfoundland  search
BTCanada
 .Eastern Canada
 ..Newfoundland
 ...Newfoundland Island
 ....Daniel's Harbour Newfoundland
SNVillage on upper Gulf of Saint Lawrence in NW Newfoundland.
Daniels County Montana  search
BTUnited States
 .Montana
 ..Daniels County Montana
Dankalia  search
USEAfar
Danube Delta  search
BTEurope
 .Danube Delta
UFDanube River delta
RTRomania
 Ukraine
SNOn the Black Sea primarily in Romania. Indexed with Romania and/or Ukraine as applicable.
Danube Plain  search
BTEurope
 .Southern Europe
 ..Danube Plain
RTRomania
 Bulgaria
 Walachia
SNCovers the Walachian Plain and the N Bulgaria lowlands. Also search Danube. Indexed with countries as applicable.
Danube River  search
BTEurope
 .Danube River
UFDonau River
 Duna River
 Dunai River
 Dunarea River
 Dunau River
RTYugoslavia
 Serbia
 Austria
 Germany
 Romania
 Ukraine
 Bulgaria
 Hungary
 Slovakia
 Kostolac
SNFlows E from the Black Forest and turns S just N of Budapest. It then flows S, SE, N, and finally E into the Black Sea. Also search Danube. Indexed with countries as applicable.
Danube River delta  search
USEDanube Delta
Danube Stade  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Quarternary
 ....Pleistocene
 .....Lower Pleistocene
 ......Danube Stade
UFDanube Stage
SNAdded to Thesaurus in 1982.
Danube Stage  search
USEDanube Stade
Danube Valley  search
BTEurope
 .Danube Valley
RTYugoslavia
 Serbia
 Austria
 Germany
 Romania
 Ukraine
 Bulgaria
 Hungary
 Slovakia
 Kostolac
SNRiver valley. Also search Danube. Indexed with countries as applicable.
Danville Virginia  search
BTUnited States
 .Virginia
 ..Danville Virginia
RTPittsylvania County Virginia
SNCity on the North Carolina border in S Virginia. Indexed with Pittsylvania County Virginia for adjacent areas if applicable.
Danzig Poland  search
USEGdansk Poland
Daonella  search
BTInvertebrata
 .Mollusca
 ..Bivalvia
 ...Pteriina
 ....Pectinacea
 .....Daonella
Daqing Field  search
BTilongjiang China
 .Daqing Field
UFDa-ching Field
RToil and gas fields
SNOil field, Heilongjiang, NE China. Added to Thesaurus in 1985.
Darasun Russian Federation  search
BTCommonwealth of Independent States
 .Russian Federation
 ..Chita Russian Federation
 ...Darasun Russian Federation
SNTown in S central Chita Oblast, N of Mongolia. Before 1993, Darasun Russian Republic was also used. This term has multiple hierarchies.
Darcy's law  search
RTaquifers
 fluid phase
 gases
 Green-Ampt model
 ground water
 hydraulic head
 hydrodynamics
 permeability
 petroleum
 porosity
 reservoir properties
Dare County North Carolina  search
BTUnited States
 .North Carolina
 ..Dare County North Carolina
NTCape Hatteras
 Duck North Carolina
SNNE North Carolina.
Darfur  search
BTAfrica
 .East Africa
 ..Sudan
 ...Darfur
UFDarfur Sudan
SNRegion in W Sudan. A large former province.
Darfur Sudan  search
USEDarfur
Darien  search
BTCentral America
 .Panama
 ..Darien
SNE part of isthmus between Gulf of Darien on E and Gulf of San Miguel on W.
Darjeeling India  search
BTAsia
 .Indian Peninsula
 ..India
 ...West Bengal India
 ....Darjeeling India
UFDarjiling India
SNTown, hill station, and district near Sikkim border in extreme N West Bengal, E India.
Darjiling India  search
USEDarjeeling India
Darke County Ohio  search
BTUnited States
 .Ohio
 ..Darke County Ohio
Darling Downs  search
BTAustralasia
 .Australia
 ..Queensland Australia
 ...Darling Downs
SNTableland in SE Queensland.
Darling Range  search
BTAustralasia
 .Australia
 ..Western Australia
 ...Darling Range
SNIn SW Western Australia.
Darlington County South Carolina  search
BTUnited States
 .South Carolina
 ..Darlington County South Carolina
Darmstadt Germany  search
BTsse Germany
 .Darmstadt Germany
SNCity in S Hesse.
Darriwilian  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Ordovician
 ....Middle Ordovician
 .....Darriwilian
Dartmoor  search
BTEurope
 .Western Europe
 ..United Kingdom
 ...Great Britain
 ....England
 .....Devonshire England
 ......Dartmoor
SNTableland in Devonshire, SW England.
Darvaz  search
BTAsia
 .Tajikistan
 ..Darvaz
BTAsia
 .Central Asia
 ..Pamirs
 ...Darvaz
UFKaganovich Peak
SNPeak in the W Pamirs in central Tajikistan. This term has multiple hierarchies.
Darvaza Range  search
BTAsia
 .Tajikistan
 ..Darvaza Range
RTPamirs
 Alai Range
SNBranch of Alai Range N of Afghanistan in S central Tajikistan. This term has multiple hierarchies. Indexed with mountains as applicable.
Darvaza Turkmenia  search
BTAsia
 .Turkmenia
 ..Ashkhabad Turkmenia
 ...Darvaza Turkmenia
SNTown in Ashkhabad Oblast in S Turkmenia. This term has multiple hierarchies.
Darvel Bay  search
BTAsia
 .Far East
 ..Malaysia
 ...East Malaysia
 ....Sabah Malaysia
 .....Darvel Bay
RTCelebes Sea
SNInlet of Celebes Sea in Sabah in East Malaysia. This term has multiple hierarchies.
Darwin glass  search
BTtektites
 .Darwin glass
UFqueenstownite
RTglasses
 impactite
Darwin, Charles  search
UFCharles Darwin
RTbiography
 Darwinism
SNAdded to Thesaurus in 1985.
Darwinism  search
RTbiologic evolution
 Darwin, Charles
 life origin
 natural selection
 paleoecology
 paleontology
SNTheory on origin of species; evolution is the result of variation and survival of the fittest by natural selection. Added to Thesaurus in 1989.
Darwinula  search
BTInvertebrata
 .Arthropoda
 ..Mandibulata
 ...Crustacea
 ....Ostracoda
 .....Podocopida
 ......Darwinula
RTmicrofossils
SNIndexed with microfossils if applicable.
Dashkesan Azerbaijan  search
BTEurope
 .Azerbaijan
 ..Dashkesan Azerbaijan
SNCity in W Azerbaijan. This term has multiple hierarchies.
Dasht-e Bayaz  search
USEDasht-e-Bayaz
Dasht-e-Bayaz  search
BTAsia
 .Middle East
 ..Iran
 ...Dasht-e-Bayaz
UFDasht-e Bayaz
RTearthquakes
SNRegion in NE part of country. Locale of earthquake in 1968.
Dasht-e-Lut Basin  search
USELut Desert
Dasht-e-Nawar  search
USEDasht-i-Nawar
Dasht-i-Lut  search
USELut Desert
Dasht-i-Nawar  search
BTAsia
 .Indian Peninsula
 ..Afghanistan
 ...Dasht-i-Nawar
UFDacht-e-Nawar
 Dasht-e-Nawar
SNVolcanic region in central Afghanistan.
Dastakert Armenia  search
BTEurope
 .Armenia
 ..Dastakert Armenia
SNVillage in S Armenia. This term has multiple hierarchies.
Dasycladaceae  search
BTPlantae
 .algae
 ..Chlorophyta
 ...Chlorophyceae
 ....Dasycladaceae
RTmicrofossils
SNIndexed with microfossils if applicable.
data  search
RTdata acquisition
 data bases
 data processing
 data retrieval
 DTA data
 electron microscopy data
 electron probe data
 ion probe data
 mineral data
 neutron activation analysis data
 neutron diffraction data
 neutron probe data
 new data
 SEM data
 SHRIMP data
 spatial
SNUsed as a general term. Before 1975 also search analytical data.
data acquisition  search
UFacquisition, data
RTdata processing
 data storage
 data
data bases  search
UFdata systems
 databases
RTdata processing
 geographic information systems
 information systems
 GeoRef
 Geoscan
 CD-ROM
 data retrieval
 data storage
 Pascal
 information management
 CRIB
 data
 data handling
 data management
 digital data
 National Coal Resources Data System
 NAWDEX
 NWIS-II
 regi
SNAlso index spatial data and/or digital data if applicable.
data ha  search
data handling  search
UFhandling, data
RTdata processing
 information systems
 data bases
 data retrieval
 spreadsheets
 parallel processing
 data management
 digital data
 digitization
 Internet
 World Wide Web
data management  search
BTinformation management
 .data management
RTdata processing
 data bases
 data handling
 digital data
 spatial data
SNAlso search data processing AND management if applicable. Added to Thesaurus in 1998.
data processing  search
NTparallel processing
UFautomatic data processing
 computer methods
 computer processing
 electronic data processing
RTalgorithms
 computer programs
 analog simulation
 automated analysis
 Bayesian analysis
 ARC/INFO
 computer networks
 artificial intelligence
 BASIC
 computer languages
 CAD
 CD-ROM
 data bases
 cokriging
 computer animation
 computers
 CRIB
 data
 data acquisition
 data ha
SNReplaces automatic data processing. Used for computer applications and machine modelling of geological data.
data retrieval  search
UFretrieval, data
RTdata processing
 information systems
 computer networks
 CD-ROM
 data bases
 data storage
 parallel processing
 data
 data handling
 digital data
 Internet
 World Wide Web
data storage  search
RTCD-ROM
 data acquisition
 data bases
 data processing
 data retrieval
 information systems
 parallel processing
 spreadsheets
 storage
data systems  search
USEdata bases
databases  search
USEdata bases
Date Creek basin  search
BTUnited States
 .Arizona
 ..Date Creek basin
RTLa Paz County Arizona
 Yuma County Arizona
 Yavapai County Arizona
SNW central Arizona. Indexed with counties as applicable. Added to Thesaurus in 1985.
dates  search
RTabsolute age
 geochronology
SNUsed only to indicate specific absolute age dates.
Datil-Mogollon volcanic field  search
BTUnited States
 .New Mexico
 ..Datil-Mogollon volcanic field
UFMogollon-Datil volcanic field
RTMogollon Mountains
SNSW New Mexico. Added to Thesaurus in 1981.
dating, fission-track  search
USEfission-track dating
dating, particle-track  search
USEparticle-track dating
datolite  search
BTsilicates
 .orthosilicates
 ..nesosilicates
 ...datolite
Dauphin County Pennsylvania  search
BTUnited States
 .Pennsylvania
 ..Dauphin County Pennsylvania
NTHarrisburg Pennsylvania
SNS central Pennsylvania.
Dauphine  search
BTEurope
 .Western Europe
 ..France
 ...Dauphine
RTBas-Dauphine
 Devoluy
SNHistorical region and former province in SE France.
Dauphine Alps  search
BTEurope
 .Western Europe
 ..France
 ...Dauphine Alps
BTEurope
 .Alps
 ..Western Alps
 ...Dauphine Alps
NTBelledonne Massif
 Pelvoux Massif
 Vercors
RTBas-Dauphine
 Cottian Alps
 Devoluy
SNW offshoot of Cottian Alps in SE France. This term has multiple hierarchies.
Davenport Iowa  search
BTUnited States
 .Iowa
 ..Scott County Iowa
 ...Davenport Iowa
SNCity on the Mississippi River in E Iowa.
Davidson County North Carolina  search
BTUnited States
 .North Carolina
 ..Davidson County North Carolina
SNCentral North Carolina.
Davidson County Tennessee  search
BTUnited States
 .Tennessee
 ..Davidson County Tennessee
NTNashville Tennessee
SNN central Tennessee.
Davidson North Carolina  search
BTUnited States
 .North Carolina
 ..Mecklenburg County North Carolina
 ...Davidson North Carolina
SNTown on the South Carolina border in S North Carolina.
Davidsville Gr  search
Davidsville Group  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Ordovician
 ....Davidsville Group
RTCanada
 Newfoundland Island
SNIn NE Newfoundland.
Davie County North Carolina  search
BTUnited States
 .North Carolina
 ..Davie County North Carolina
Daviess County Indiana  search
BTIndiana
 .Daviess County Indiana
Daviess County Kentucky  search
BTUnited States
 .Kentucky
 ..Daviess County Kentucky
Daviess County Missouri  search
BTUnited States
 .Missouri
 ..Daviess County Missouri
Davis County Iowa  search
BTUnited States
 .Iowa
 ..Davis County Iowa
SNSE Iowa.
Davis County Utah  search
BTUnited States
 .Utah
 ..Davis County Utah
RTGreat Salt Lake
 Jordan River
 Jordan Valley
SNN Utah.
Davis Formation  search
RTArkansas
 Indiana
 Iowa
 Kansas
 Louisiana
 Missouri
 Oklahoma
 Upper Cambrian
 Upper Jurassic
SNUpper Cambrian of Arkansas, Indiana, Iowa, Kansas, Missouri, Oklahoma. May also occur as Upper Jurassic in Louisiana or Oklahoma. Search in combination with age or area. Indexed with age as applicable. Added to Thesaurus in 1995.
Davis Mountains  search
BTUnited States
 .Texas
 ..Davis Mountains
RTBrewster County Texas
 Jeff Davis County Texas
 Reeves County Texas
 West Texas
SNCentered in Jeff Davis County in W Texas. Indexed with counties as applicable.
Davis Strait  search
RTArctic Ocean
 Atlantic Ocean
 Baffin Bay
 Disko Island
 Godthaabsfjord
 Kangerdlugssuaq
 Labrador Current
 Narpaing Fjord
 North Atlantic
 Sondre Strom Fjord
SNBetween SW Greenland and Baffin Island. Indexed with Arctic Ocean and/or North Atlantic as applicable.
Davison County South Dakota  search
BTUnited States
 .South Dakota
 ..Davison County South Dakota
Davos Switzerland  search
BTEurope
 .Central Europe
 ..Switzerland
 ...Graubunden Switzerland
 ....Davos Switzerland
SNTown consisting of Davos Platz and Davos Dorf in N central Graubunden.
Dawes County Nebraska  search
BTUnited States
 .Nebraska
 ..Dawes County Nebraska
Dawson County Georgia  search
BTUnited States
 .Georgia
 ..Dawson County Georgia
SNN Georgia.
Dawson County Montana  search
BTUnited States
 .Montana
 ..Dawson County Montana
Dawson County Nebraska  search
BTUnited States
 .Nebraska
 ..Dawson County Nebraska
SNS central Nebraska.
Dawson County Texas  search
BTUnited States
 .Texas
 ..Dawson County Texas
SNNW Texas.
Dawson Yukon Territory  search
BTCanada
 .Western Canada
 ..Yukon Territory
 ...Dawson Yukon Territory
SNCity in W central Yukon Territory.
dawsonite  search
BTcarbonates
 .dawsonite
Daxinganling  search
USEDa Hinggan Ling
Day County South Dakota  search
BTUnited States
 .South Dakota
 ..Day County South Dakota