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Data sets Publications Expeditions Thesaurus
Cu  search
USEcopper
Cuanza Basin  search
BTAfrica
 .Central Africa
 ..Angola
 ...Cuanza Basin
UFKwanza Basin
SNRiver basin in W central Angola.
Cuanza-Sul Angola  search
BTAfrica
 .Central Africa
 ..Angola
 ...Cuanza-Sul Angola
SNDistrict on the South Atlantic in W Angola.
Cuba  search
BTCaribbean region
 .West Indies
 ..Antilles
 ...Greater Antilles
 ....Cuba
NTCamaguey Cuba
 La Habana Cuba
 Pinar del Rio Cuba
 Santiago de Cuba
 Villa Clara Cuba
RTLucas Formation
cubanite  search
BTsulfides
 .cubanite
UFchalmersite
cube spar  search
USEanhydrite
Cuddalore Series  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Neogene
 ....Cuddalore Series
RTPliocene
 India
 Tamil Nadu India
 upper Miocene
 Neyveli Lignite
SNUpper Miocene to Pliocene. Indexed with ages as applicable.
Cuddapah Basin  search
BTAsia
 .Indian Peninsula
 ..India
 ...Andhra Pradesh India
 ....Cuddapah Basin
SNS central Andhra Pradesh. Before 1978, also search Cuddapah.
Cuddapah India  search
BTAsia
 .Indian Peninsula
 ..India
 ...Andhra Pradesh India
 ....Cuddapah India
SNTown in SW Andhra Pradesh, S India.
Cuddapah System  search
BTChronostratigraphic Units
 .Precambrian
 ..Cuddapah System
RTIndia
 Andhra Pradesh India
SNNow included in Purana Group. Subdivided into Kistna Series, Nallamalai Series, Cheyair Series and Papaghni Series. Before 1978, also search Cuddapah.
Cue Australia  search
BTAustralasia
 .Australia
 ..Western Australia
 ...Cue Australia
SNTown in W central Western Australia.
Cuenca City Spain  search
BTEurope
 .Southern Europe
 ..Iberian Peninsula
 ...Spain
 ....Castilla-La Mancha Spain
 .....Cuenca Spain
 ......Cuenca City Spain
SNRefers to only the city in E central Spain. Before 1981, also search Cuenca Spain.
Cuenca Spain  search
BTEurope
 .Southern Europe
 ..Iberian Peninsula
 ...Spain
 ....Castilla-La Mancha Spain
 .....Cuenca Spain
NTCuenca City Spain
RTNew Castile Spain
 Serrania de Cuenca
SNRefers only to the province in east-central Spain. From 1981-1992, also search Cuenca Province and Spain. For the city, see Cuenca City Spain.
cuestas  search
BTerosion features
 .cuestas
RTgeomorphology
 cliffs
 slopes
 scarps
SNAdded to Thesaurus in 1982.
Cuisian  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Paleogene
 ....Eocene
 .....lower Eocene
 ......Cuisian
SNEurope. Above Ypresian, below Lutetian.
Culberson County Texas  search
BTUnited States
 .Texas
 ..Culberson County Texas
NTVan Horn Texas
RTGuadalupe Mountains
 Marble Canyon
SNExtreme W Texas.
Culebra Dolomite Member  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Permian
 ....Culebra Dolomite Member
RTNew Mexico
 Texas
 Rustler Formation
SNOf Rustler Formation. SE New Mexico and W Texas. Added to Thesaurus in 1989.
Cullman County Alabama  search
BTUnited States
 .Alabama
 ..Cullman County Alabama
Culm  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Carboniferous
 ....Culm
RTDinantian
 Avonian
SNProvincial series, Europe.
Culpeper Basin  search
BTUnited States
 .Culpeper Basin
RTVirginia
 Maryland
SNN Virginia. W Maryland. Indexed with counties and states as applicable. Added to Thesaurus in 1985.
Culpeper County Virginia  search
BTUnited States
 .Virginia
 ..Culpeper County Virginia
culture, living  search
USEliving taxa
culverts  search
RTchannels
 drainage
 pipelines
 rivers and streams
 waterways
SNIndexed with pipelines OR channels and waterways if applicable.
Cumana Venezuela  search
BTSouth America
 .Venezuela
 ..Sucre Venezuela
 ...Cumana Venezuela
SNCity on the Caribbean Sea in Sucre, N Venezuela.
Cumberland Basin  search
RTBay of Fundy
 Canada
 New Brunswick
 North Atlantic
 Nova Scotia
 Prince Edward Island
SNMaritime Provinces of Canada and adjacent NW Atlantic. Indexed with Canadian provinces and/or North Atlantic as applicable. Added to Thesaurus in 1985.
Cumberland County Illinois  search
BTUnited States
 .Illinois
 ..Cumberland County Illinois
SNSE central Illinois.
Cumberland County Kentucky  search
BTUnited States
 .Kentucky
 ..Cumberland County Kentucky
SNS Kentucky.
Cumberland County Maine  search
BTUnited States
 .Maine
 ..Cumberland County Maine
NTPortland Maine
RTSaco River
SNSW Maine.
Cumberland County New Jersey  search
BTUnited States
 .New Jersey
 ..Cumberland County New Jersey
RTPine Barrens
SNBounded by Delaware Bay in S New Jersey.
Cumberland County North Carolina  search
BTUnited States
 .North Carolina
 ..Cumberland County North Carolina
SNS central North Carolina.
Cumberland County Nova Scotia  search
BTCanada
 .Eastern Canada
 ..Maritime Provinces
 ...Nova Scotia
 ....Cumberland County Nova Scotia
Cumberland County Pennsylvania  search
BTUnited States
 .Pennsylvania
 ..Cumberland County Pennsylvania
SNS Pennsylvania.
Cumberland County Tennessee  search
BTUnited States
 .Tennessee
 ..Cumberland County Tennessee
SNE central Tennessee.
Cumberland County Virginia  search
BTUnited States
 .Virginia
 ..Cumberland County Virginia
NTCumberland Virginia
SNCentral Virginia.
Cumberland England  search
BTEurope
 .Western Europe
 ..United Kingdom
 ...Great Britain
 ....England
 .....Cumbria England
 ......Cumberland England
NTBewcastle England
RTLake District
SNFormer county in NW England. In 1974, became part of Cumbria.
Cumberland Group  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Carboniferous
 ....Pennsylvanian
 .....Cumberland Group
RTNew Brunswick
 Nova Scotia
SNE New Brunswick and N Nova Scotia. Indexed with provinces as applicable. Added to Thesaurus in 1989.
Cumberland Kentucky  search
BTrlan County Kentucky
 .Cumberland Kentucky
SNCity in SE Kentucky.
Cumberland Maryland  search
BTUnited States
 .Maryland
 ..Allegany County Maryland
 ...Cumberland Maryland
SNCity in W Maryland.
Cumberland Mountains  search
USECumberland Plateau
Cumberland Peninsula  search
RTBaffin Island
 Franklin District Northwest Territories
SNOn easternmost Baffin Island on Davis Strait. May also occur in other locations. Also search Cumberland AND peninsula. Indexed with Baffin Island or region as applicable.
Cumberland Plateau  search
BTNorth America
 .Appalachians
 ..Cumberland Plateau
UFCumberland Mountains
RTUnited States
 Virginia
 Kentucky
 Alabama
 Appalachian Plateau
 West Virginia
 Tennessee
 Pine Mountain Window
 Eastern Kentucky coal field
SNSouthwesternmost division of the Appalachians. Also search Cumberland AND plateau. Indexed with counties or states as applicable.
Cumberland Rhode Island  search
BTUnited States
 .Rhode Island
 ..Providence County Rhode Island
 ...Cumberland Rhode Island
SNTown in NE Rhode Island.
Cumberland Virginia  search
BTUnited States
 .Virginia
 ..Cumberland County Virginia
 ...Cumberland Virginia
SNVillage in central Virginia.
Cumbria England  search
BTEurope
 .Western Europe
 ..United Kingdom
 ...Great Britain
 ....England
 .....Cumbria England
NTAlston Block
 Cumberland England
 Sellafield England
 Westmorland England
RTLake District
 Howgill Fells
 Morecambe Bay
 Skiddaw Slates
SNCounty in NW England. Formed in 1974 from Cumberland and Westmorland counties.
Cuming County Nebraska  search
BTUnited States
 .Nebraska
 ..Cuming County Nebraska
cummingtonite  search
BTsilicates
 .chain silicates
 ..amphibole group
 ...clinoamphibole
 ....cummingtonite
RTanthophyllite
cumulates  search
RTigneous rocks
 magmas
Cupido Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Mesozoic
 ...Cretaceous
 ....Upper Cretaceous
 .....Cupido Formation
RTMexico
 Texas
SNN Mexico and S Texas. Added to Thesaurus in 1989.
Cupressaceae  search
BTPlantae
 .Spermatophyta
 ..Gymnospermae
 ...Coniferales
 ....Cupressaceae
SNFamily.
cuprite  search
BToxides
 .cuprite
RTcopper ores
 copper minerals
Curaca River basin  search
BTSouth America
 .Brazil
 ..Bahia Brazil
 ...Curaca River basin
SNJust S of the Sao Francisco River in NE Bahia, E Brazil.
Curacao  search
BTCaribbean region
 .West Indies
 ..Antilles
 ...Lesser Antilles
 ....Netherlands Antilles
 .....Curacao
SNIsland in the Netherlands Antilles just N of W Venezuela.
curation  search
RTcollecting
 collections
 conservation
 museums
 practice
 preservation
 sample preparation
 sampling
 storage
SNAlso search curating. Added to Thesaurus in 1995.
Curie point  search
UFCurie temperature
RTpaleomagnetism
 magnetic susceptibility
 heat flow
 magnetic properties
 thermoremanent magnetization
Curie temperature  search
USECurie point
curium  search
BTmetals
 .actinides
 ..curium
UFCm
current directions  search
UFdirections, current
RTsedimentation
 ocean circulation
 currents
current lineations  search
USEparting lineation
current markings  search
BTsedimentary structures
 .bedding plane irregularities
 ..current markings
UFmarkings, current
RTflute casts
 scour marks
 tool marks
current partings  search
USEparting lineation
current research  search
RTannual report
 associations
 geology
 news
 progress report
 report
 research
 survey organizations
current transport  search
SNUsed in subfile T. See marine transport; stream transport; currents; paleocurrents.
currents  search
NTbottom currents
 convection currents
 density currents
 fluvial currents
 ocean currents
 turbidity currents
RTcontinental shelf
 current directions
 eddy flow
 flowmeters
 magnetic field
 paleocurrents
 upwelling
SNNow use ocean currents if applicable.
curricula  search
RTeducation
 educational resources
Currituck County North Carolina  search
BTUnited States
 .North Carolina
 ..Currituck County North Carolina
Curry County New Mexico  search
BTUnited States
 .New Mexico
 ..Curry County New Mexico
SNE New Mexico.
Curry County Oregon  search
BTUnited States
 .Oregon
 ..Curry County Oregon
NTSixes River
SNSW Oregon.
curved seismic interface  search
RTdiscontinuities
 inclined seismic interface
 seismology
SNAdded to Thesaurus in 1981.
curves, traveltime  search
USEtraveltime curves
Cusiana Field  search
BTSouth America
 .Colombia
 ..Cusiana Field
RToil and gas fields
SNLlanos foothills, Casanare state, E Colombia.
CUSMAP  search
UFConterminous United States Mineral Assessment Program
RTUnited States
 U. S. Geological Survey
 mineral exploration
 programs
SNAcronym. U. S. Geological Survey mineral resource exploration and mapping project. Part of a data base. Indexed with states as applicable. Added to Thesaurus in 1985.
Custer County Colorado  search
BTUnited States
 .Colorado
 ..Custer County Colorado
RTWet Mountains
SNS central Colorado.
Custer County Idaho  search
BTUnited States
 .Idaho
 ..Custer County Idaho
NTBorah Peak
 Challis Idaho
 Chilly Buttes
 Mackay Idaho
RTPioneer Mountains
 Sawtooth Range
 Lost River Range
 Borah Peak earthquake 1983
 Lost River Fault
SNCentral Idaho.
Custer County Montana  search
BTUnited States
 .Montana
 ..Custer County Montana
SNSE Montana.
Custer County Nebraska  search
BTUnited States
 .Nebraska
 ..Custer County Nebraska
SNCentral Nebraska.
Custer County Oklahoma  search
BTUnited States
 .Oklahoma
 ..Custer County Oklahoma
SNW Oklahoma.
Custer County South Dakota  search
BTUnited States
 .South Dakota
 ..Custer County South Dakota
RTBlack Hills
SNSW South Dakota.
customs duty  search
RTeconomics
SNUsually out-of-scope for GeoRef. Added to Thesaurus in 1981.
cut and fill  search
BTsedimentary structures
 .planar bedding structures
 ..cut and fill
cut and fill mining  search
USEcut-and-fill mining
cut-and-fill mining  search
BTmining
 .cut-and-fill mining
UFcut and fill mining
 mining, cut-and-fill
RTmines
 mining geology
 backfill
 surface mining
 underground mining
SNAdded to Thesaurus in 1985.
Cutch India  search
USEKutch India
cuticles  search
RTArthropoda
 chitin
 morphology
 Plantae
SNAdded to Thesaurus in 1993.
cutinite  search
BTmacerals
 .exinite
 ..cutinite
SNAdded to Thesaurus in 1981.
Cutler Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Permian
 ....Cutler Formation
RTNew Mexico
 Utah
 Colorado
 Arizona
SNIncludes Halgaito Tongue, Cedar Mesa Sandstone Tongue, Organ Rock Tongue, White Rim Sandstone Member, DeChelly Sandstone Member, Hoskinnini Tongue, White River Sandstone, Rico transition facies. NE Arizona, SW Colorado, NW New Mexico, and SE Utah.
cutoff grade  search
RTeconomic geology
 economics
 feasibility studies
 grade
 ore grade
 profitability
SNAdded to Thesaurus in 1982.
cutoff rigidities  search
SNAs of 1993, no longer a valid term for GeoRef. Usually out-of-scope. Used with interplanetary space and magnetosphere.
Cuttack India  search
BTAsia
 .Indian Peninsula
 ..India
 ...Orissa India
 ....Cuttack India
SNCity in E Orissa, E India.
cuttings  search
UFdrill cuttings
RTwell-logging
 cores
 boreholes
Cuvier abyssal plain  search
BTIndian Ocean
 .Cuvier abyssal plain
RTDSDP Site 263
SNOff Western Australia. Also search Cuvier.
Cuyahoga County Ohio  search
BTUnited States
 .Ohio
 ..Cuyahoga County Ohio
NTCleveland Ohio
SNN Ohio.
Cuyahoga Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Carboniferous
 ....Mississippian
 .....Lower Mississippian
 ......Cuyahoga Formation
RTOhio
 Pennsylvania
 New York
SNLower Mississippian. Ohio and W Pennsylvania, New York. Added to Thesaurus in 1993.
Cuyama Basin  search
BTUnited States
 .California
 ..Cuyama Basin
SNS California. Added to Thesaurus in 1989.