Scientific Earth Drilling Information Service - SEDIS

Search SEDIS

Data sets

Publications

Expeditions

Thesaurus

Search in thesaurus:

show categories

Re
USE	rhenium
RT	sedimentation

Re/Os
UF	Os/Re
RT	absolute age
	isotope ratios
	osmium
	rhenium
SN	Isotopic ratio used in age determination. Added to Thesaurus in 1989.

reabsorption
USE	resorption

reaction rims
UF	kelyphytic rims
RT	minerals
	magmas
	phase equilibria
	crystallography
	mineralogy
	crystal chemistry
	fractional crystallization
	chemical reactions
	crystal growth
	crystal zoning
	crystals
	crystallization
	magmatic differentiation
	petrography
SN	Before 1993, also search coronas and petrology. Added to Thesaurus in 1982.

reactions
SN	As of 1993, no longer a valid term for GeoRef. See chemical reactions.

reactivation
RT	displacements
	faults
	neotectonics

reactivity
RT	activity
	analysis
	behavior
	chemical reactions
	pH
	properties
	rates
	geochemistry
	sensitivity analysis
SN	Chemical property.

Read Bay Formation
BT	Chronostratigraphic Units
	.Phanerozoic
	..Paleozoic
	...Read Bay Formation
RT	Silurian
	Lower Devonian
	Canada
	Franklin District Northwest Territories
	Northwest Territories
	Cornwallis Island
SN	Middle Silurian to Lower Devonian. Cornwallis Island in Franklin District. Indexed with ages as applicable.

Reading Pennsylvania
BT	United States
	.Pennsylvania
	..Berks County Pennsylvania
	...Reading Pennsylvania
SN	City in SE central Pennsylvania.

Reading Prong
BT	United States
	.Reading Prong
RT	Appalachians
	Pennsylvania
	New York
	New Jersey
	Central Appalachians
SN	Precambrian metamorphic terrane, Central Appalachians. Indexed with states as applicable. Added to Thesaurus in 1985.

readsorption
USE	resorption

Reagan County Texas
BT	United States
	.Texas
	..Reagan County Texas

Reagan Sandstone
BT	Chronostratigraphic Units
	.Phanerozoic
	..Paleozoic
	...Cambrian
	....Upper Cambrian
	.....Reagan Sandstone
RT	Oklahoma
	Timbered Hills Group
SN	In Timbered Hills Group. Central S Oklahoma.

reagents
RT	buffers
	geochemistry
	solutions
	solvents
SN	In general, use this term, and not names of specific reagents, when chemical reagents are discussed.

Real County Texas
BT	United States
	.Texas
	..Real County Texas

realgar
BT	sulfides
	.realgar
UF	red arsenic
	red orpiment
	sandarac

Reasi
USE	Riasi

rebound
SN	As of 1993, see isostatic rebound, glacial rebound, uplifts or elastic properties if applicable.

Recent
USE	Holocene

recent deformation
SN	Used in subfiles G and N. See deformation; neotectonics.

Receptaculitaceae
BT	Plantae
	.algae
	..Chlorophyta
	...Chlorophyceae
	....Receptaculitaceae
RT	microfossils
	Coelenterata
	Foraminifera
	Echinodermata
	problematic fossils
	Porifera
SN	Indexed with microfossils if applicable.

recharge
UF	ground-water increment
	ground-water recharge
	ground-water replenishment
	increment
RT	ground water
	aquifers
	artificial recharge
	natural recharge
	hydrologic cycle
	deep aquifers
	discharge
	MODFLOW
	water balance
	infiltration

Rechitsa Belarus
BT	Europe
	.Belarus
	..Rechitsa Belarus
SN	City in Gomel Oblast in S Belarus. This term has multiple hierarchies.

Recife-Joao Pessoa
BT	South America
	.Brazil
	..Recife-Joao Pessoa
RT	Pernambuco Brazil
	Paraiba Brazil
SN	Two city region in neighboring states in NE Brazil. Recife is in Pernambuco and Joao Pessoa is in Paraiba.

Recita Romania
USE	Resita Romania

reclamation
NT	bioreclamation
UF	land reclamation
RT	abandoned mines
	abandoned oil wells
	environmental geology
	conservation
	environmental analysis
	artificial islands
	basin management
	biodegradation
	bioremediation
	decontamination
	disposal barriers
	deforestation
	depletion
	constructed wetlands
	impact statement
SN	Used for geological studies on the reclamation of the natural environment.

reclined
SN	A valid term through 1976. After 1976, use recumbent folds.

reclined folds
USE	recumbent folds

Reconcavo Basin
BT	South America
	.Brazil
	..Bahia Brazil
	...Reconcavo Basin
SN	Fertile coastal lowland surrounding Todos os Santos Bay W of Salvador. Also search Reconcavo.

reconstruction
RT	balanced cross sections
	continental drift
	decompaction
	paleogeography

recording
SN	A valid general term through 1976.

recovery
RT	enhanced recovery
	mining
	mining geology
	reclamation
	retorting
	secondary recovery
	tertiary recovery
	thermal recovery
	water recovery
	well stimulation
SN	General term. Use secondary or tertiary recovery for petroleum if applicable.

recreation
RT	land use
	soils

recrystallization
RT	authigenesis
	crystallization
	deformation
	grains
	lithification
	metamorphism
	phyllonitization

rectorite
BT	silicates
	.sheet silicates
	..clay minerals
	...rectorite
UF	allevardite

recumbent
SN	A valid term through 1977. After 1977, use recumbent folds.

recumbent folds
BT	folds
	.recumbent folds
UF	reclined folds
RT	nappes
	orientation
SN	Before 1978, search folds AND (recumbent OR reclined).

recurrence interval
RT	floods
	frequency
	geologic hazards
	periodicity
	risk assessment
SN	Also search frequency and floods. Added to Thesaurus in 1998.

recursive filte

recursive filters
RT	filters
	Kalman filters
SN	Added to Thesaurus in 1981.

recycling
RT	economic geology
	economics
	environmental geology
	reclamation
SN	Added to Thesaurus in 1981.

red algae
USE	Rhodophyta

red arsenic
USE	realgar

red beds
BT	sedimentary rocks
	.clastic rocks
	..red beds
UF	red rock
	redbeds
RT	sandstone
	terrigenous materials
	ferruginous composition

Red Deer River
BT	Canada
	.Western Canada
	..Alberta
	...Red Deer River
RT	Red Deer River valley
SN	Rises in Banff National Park and flows into South Saskatchewan River near the Saskatchewan border.

Red Deer River valley
BT	Canada
	.Western Canada
	..Alberta
	...Red Deer River valley
UF	Red Deer Valley
RT	Red Deer River
SN	S Alberta. Added to Thesaurus in 1989.

Red Deer Valley
USE	Red Deer River valley

Red Des

Red Desert
RT	Great Divide Basin
	Sweetwater County Wyoming
	U. S. Rocky Mountains
SN	SW Wyoming. Indexed with counties or regions as applicable. Added to Thesaurus in 1985.

Red Eagle Limestone
BT	Chronostratigraphic Units
	.Phanerozoic
	..Paleozoic
	...Permian
	....Red Eagle Limestone
RT	Missouri
	Oklahoma
	Nebraska
	Kansas
	Council Grove Group
SN	In Council Grove Group. Includes Glenrock Limestone Member, Bennett Shale Member, Howe Limestone Member.

Red Fork Sandstone
BT	Chronostratigraphic Units
	.Phanerozoic
	..Paleozoic
	...Carboniferous
	....Pennsylvanian
	.....Red Fork Sandstone
RT	Oklahoma
SN	Said to lie higher than Glenn Sand, lower than Skinner Sand. NE Oklahoma.

Red Hill
RT	Haleakala
	Hawaii
	Maui
	California
	New Mexico
	Scotland
	Utah
	Western Australia
	Wyoming
SN	Mountain in Haleakala National Park on Maui Island. Also hills or mountains in SW Utah, Scotland, and other locations. As of 1993, use Red Hill Mine for the turquoise mine in the White Signal District of New Mexico and also for the mines in California and

Red Lake
RT	Beltrami County Minnesota
	Ontario
SN	In Beltrami County, N Minnesota. Includes both Upper Red Lake and Lower Red Lake. Also in Ontario and other locations. Indexed with county or region as applicable.

Red Lake County Minnesota
BT	United States
	.Minnesota
	..Red Lake County Minnesota

Red Mountain
RT	Alabama
	alunite
	Jefferson County Alabama
	Colorado
	sulfur deposits
SN	Ridge primarily in Jefferson County, N central Alabama. Also large alunite deposit near Lake City, Colorado. Also in other locations. Indexed with county or region and mountains as applicable.

Red Mountain Formation
RT	Alabama
	Georgia
	Queensland Australia
	Silurian
	Tertiary
SN	Overlies Chickamauga Group; underlies Frog Mountain Sandstone. N Alabama, and NW Georgia. Also occurs as a Tertiary formation in Queensland Australia. May also occur in other locations. Indexed with age or ages as applicable.

red orpiment
USE	realgar

Red Peak Formation
BT	Chronostratigraphic Units
	.Phanerozoic
	..Mesozoic
	...Triassic
	....Red Peak Formation
RT	Wyoming
	Chugwater Formation
SN	In Chugwater Formation. NW Wyoming.

Red River
RT	Arkansas
	Louisiana
	Manitoba
	Minnesota
	North America
	North Dakota
	Oklahoma
	New Mexico
	Red River valley
	South Dakota
	Texas
SN	A southern tributary of the Mississippi River, rising in E New Mexico. Also a river rising in Manitoba and flowing into the Minnesota River. Also several other North American rivers. Search in combination with appropriate area term. Indexed with North Ame

Red River County Texas
BT	United States
	.Texas
	..Red River County Texas

Red River Fault
UF	Honghe Fault
RT	Vietnam
	South China Sea
	Yunnan China
SN	Zone extends from Yunnan in SW China across Vietnam to the South China Sea. Indexed with Yunnan China and/or Vietnam and/or South China Sea as applicable. Added to Thesaurus in 1989.

Red River Formation
BT	Chronostratigraphic Units
	.Phanerozoic
	..Paleozoic
	...Ordovician
	....Upper Ordovician
	.....Red River Formation
RT	Wyoming
	Montana
	North Dakota
	Manitoba
	South Dakota
	Bighorn Dolomite
SN	In Bighorn Group.

Red River Parish Louisiana
BT	United States
	.Louisiana
	..Red River Parish Louisiana

Red River valley
RT	Arkansas
	Louisiana
	Manitoba
	Minnesota
	North Dakota
	Oklahoma
	Red River
	New Mexico
	South Dakota
	Texas
SN	As of 1985, can be used for valley of any of several Red rivers in the United States and Canada. Indexed with states or provinces as applicable.

red rock
USE	red beds

Red Sea
BT	Indian Ocean
	.Red Sea
NT	Atlantis II Deep
	Chain Deep
	Discovery Deep
	Gulf of Aqaba
	Gulf of Suez
	Red Sea Rift
RT	Leg 23
	Great Rift Valley
	Red Sea Basin
	DSDP Site 225
	DSDP Site 228
	DSDP Site 229
	DSDP Site 230
	Jeddah Saudi Arabia
	Red Sea region
	Zabargad Island
SN	Between NE Africa and the Arabian Peninsula connecting the Mediterranean Sea with the Indian Ocean.

Red Sea Basin
RT	Djibouti
	Egypt
	Eritrea
	Ethiopia
	Israel
	Jordan
	Middle East
	Red Sea
	Red Sea region
	Saudi Arabia
	Sudan
	Yemen
SN	Indexed with Red Sea, Djibouti and countries as applicable.

Red Sea Hills
BT	Africa
	.Red Sea Hills
UF	Atbay
	Etbai
RT	Egypt
	Sudan
	East Africa
SN	Range of hills along Red Sea in E Egypt and NE Sudan. Indexed with countries as applicable. Added to Thesaurus in 1985.

Red Sea region
RT	Red Sea
	Red Sea Basin
	Red Sea Rift
SN	This is an artificial term used to indicate the coastal region immediately adjacent to the Red Sea and the immediate littoral zone.

Red Sea Rift
BT	Indian Ocean
	.Red Sea
	..Red Sea Rift
RT	Ethiopia
	Yemen
	Egypt
	Saudi Arabia
	Arabian Peninsula
	Arava Valley
	Sudan
	East African Rift
	Dead Sea Rift
	Great Rift Valley
	Gulf of Aden
	Ethiopian Rift
	Gulf of Suez
	Red Sea region
	Zabargad Island
SN	Part of the Great Rift Valley system which connects the Dead Sea Rift to the East African Rift. Indexed with countries as applicable. Added to Thesaurus in 1993.

Red soils
BT	soils
	.Red soils
RT	soil group
	Zonal soils

Red Willow County Nebraska
BT	United States
	.Nebraska
	..Red Willow County Nebraska

red zinc ore
USE	zincite

redbeds
USE	red beds

Redlichiida
BT	Invertebrata
	.Arthropoda
	..Trilobitomorpha
	...Trilobita
	....Redlichiida

Redon France
BT	Europe
	.Western Europe
	..France
	...Ille-et-Vilaine France
	....Redon France
SN	Town in E Brittany, NW France.

Redonda Formation
BT	Chronostratigraphic Units
	.Phanerozoic
	..Mesozoic
	...Triassic
	....Upper Triassic
	.....Redonda Formation
RT	New Mexico
SN	Unconformably overlies Chinle Formation; unconformably underlies Entrada Sandstone. NE New Mexico.

Redondo Canyon
BT	Pacific Ocean
	.North Pacific
	..Northeast Pacific
	...Redondo Canyon
UF	Redondo submerged valley
RT	submarine canyons
SN	Off S California at approximately 34#DGN and 118#DGW. This term has multiple hierarchies.

Redondo submerged valley
USE	Redondo Canyon

Redonian
BT	Chronostratigraphic Units
	.Phanerozoic
	..Cenozoic
	...Neogene
	....Pliocene
	.....upper Pliocene
	......Redonian
SN	North America.

Redoubt
BT	United States
	.Alaska
	..Southern Alaska
	...Redoubt
UF	Mount Redoubt
	Mt. Redoubt
RT	volcanoes
SN	Volcano W of Cook Inlet in Lake Clark National Park, S Alaska. Added to Thesaurus in 1995.

redox
USE	Eh

redox potential
USE	Eh

reduction
RT	Eh
	oxidation
	processes
	geochemistry

Redwall Limestone
BT	Chronostratigraphic Units
	.Phanerozoic
	..Paleozoic
	...Carboniferous
	....Mississippian
	.....Redwall Limestone
RT	Arizona
SN	Comprises four unnamed members. N Arizona.

Redwood County Minnesota
BT	United States
	.Minnesota
	..Redwood County Minnesota

Redwood Creek
RT	Humboldt County California
	Mill Creek
	Redwood National Park
SN	NW California. May also occur in other locations. Indexed with county or regions as applicable. Added to Thesaurus in 1989.

Redwood National Park
BT	United States
	.California
	..Redwood National Park
RT	national parks
	Klamath Mountains
	Del Norte County California
	Humboldt County California
	Redwood Creek
SN	Coastal N California. Indexed with counties as applicable.

reedmergnerite
BT	silicates
	.framework silicates
	..reedmergnerite

Reedsville Formation
BT	Chronostratigraphic Units
	.Phanerozoic
	..Paleozoic
	...Ordovician
	....Upper Ordovician
	.....Reedsville Formation
RT	Virginia
	Pennsylvania
	West Virginia
	Tennessee
SN	Central Pennsylvania, E Tennessee, SW Virginia and E West Virginia. Added to Thesaurus in 1989.

reef builders
RT	algae
	Brachiopoda
	Bryozoa
	Coelenterata
	Echinodermata
	hermatypic taxa
	Mollusca
	Porifera
	reefs
	stromatolites
SN	Added to Thesaurus in 1981.

reef environment
RT	aquatic environment
	deep-water environment
	depositional environment
	marine environment
	paleoecology
	reefs
	sedimentation
	shallow-water environment
	submarine environment
SN	For paleoecology. Before 1993, also search reefs and environment. Added to Thesaurus in 1993.

reef formations
USE	reefs

reef pinnacle
USE	pinnacle reefs

reefs
NT	atolls
	barrier reefs
	fringing reefs
	patch reefs
	pinnacle reefs
	platform reefs
UF	coral reefs
	reef formations
RT	bioerosion
	oceanography
	ecology
	paleoecology
	geomorphology
	Coelenterata
	hermatypic taxa
	bioherms
	reef builders
	carbonate banks
	biogenic structures
	marine geology
	continental shelf
	lagoons
	bafflestone
	biostromes
	lithofacies
	reef environment
	sea-level chang
SN	As of 1984, not to be for sedimentary structures; use bioherms there. As of 1993, use reef environment for paleoecology.

Reefton New Zealand
BT	Australasia
	.New Zealand
	..Reefton New Zealand
RT	South Island
SN	Village in NW South Island. Also index South Island.

Reelfoot Lake
BT	United States
	.Tennessee
	..Reelfoot Lake
RT	Lake County Tennessee
	Obion County Tennessee
SN	Lake and Obion counties, NW Tennessee. Indexed with counties as applicable. Added to Thesaurus in 1989.

Reelfoot Rift
BT	United States
	.Reelfoot Rift
RT	Missouri
	Mississippi
	Tennessee
	Arkansas
	Mississippi Valley
	Midcontinent
SN	NW Tennessee, SE Missouri, NE Arkansas and NW Mississippi. Indexed with states as applicable. Added to Thesaurus in 1989.

Reeves County Texas
BT	United States
	.Texas
	..Reeves County Texas
RT	Davis Mountains
SN	Extreme W Texas.

refinement
RT	crystal structure
	Rietveld refinement

reflectance
UF	reflectance spectra
	reflectivity
RT	organic compounds
	albedo
	brightness
	coal
	microscope methods
	crystallography
	mineralogy
	ore reflectivity
SN	Applies to specific samples of coal, organic compounds, and sometimes minerals. As of 1982, use ore reflectivity for ore deposits. When discussing methods, also use microscope methods. Does not include reflectivity of a rock bed to seismic waves.

reflectance spectra
USE	reflectance

reflection
RT	backscattering
	diffraction
	elastic waves
	geophysical surveys
	reflectograms
SN	After 1998, for seismic studies, use reflection methods. For minerals, see optical properties.

reflection methods
BT	geophysical methods
	.reflection methods
NT	common-depth-point method
RT	acoustical methods
	geophysical surveys
	elastic waves
	AVO methods
	dip moveout
	moveout
	normal moveout
	multiple reflections
	radar methods
	BIRPS
	bottom-simulating reflectors
	CALCRUST
	COCORP
	ECORS
	DEKORP
	Lithoprobe
	ground-penetrating radar
	reflectograms
	seismo
SN	Restricted to geophysical methods; most commonly used for seismic methods. Indexed with seismic methods or other types of methods as applicable.

reflection waves
SN	As of 1981, no longer a valid index term for GeoRef. Before 1978, also search ocean waves AND reflection.

reflectivity
USE	reflectance

reflectograms
RT	reflection
	reflection methods

reforestation
USE	revegetation

refraction
RT	diffraction
	elastic waves
	electrical methods
	geophysical surveys
SN	For seismic studies, use refraction methods. For minerals, use refractive index.

refraction method

refraction methods
BT	geophysical methods
	.refraction methods
RT	seismology
	acoustical methods
	geophysical surveys
	seismic methods
	electrical methods
	ECORS
	diffraction
	sonobuoys
SN	Restricted to geophysical methods; most commonly used for seismic methods. Indexed with seismic methods or other types of methods as applicable.

refraction waves
SN	As of 1981, no longer a valid index term for GeoRef. Before 1978, also search ocean waves AND refraction.

refractive index
UF	index of refraction
	refractivity
	refractometry
RT	optical dispersion
	birefringence
	optical properties

refractivity
USE	refractive index

refractometry
USE	refractive index

refractories
USE	refractory materials

refractory clay
USE	fireclay

refractory materials
UF	refractories
RT	carborundum
	industrial minerals
	materials
	construction materials
	ceramic materials
	clays
	fireclay
	flint clay
	kaolin deposits
	sintering
	graphite deposits
	magnesite deposits
SN	As a commodity index with ceramic materials.

Refugian
BT	Chronostratigraphic Units
	.Phanerozoic
	..Cenozoic
	...Paleogene
	....Eocene
	.....Refugian
RT	Oligocene
SN	North America. Above Fresnian, below Zemorrian.

Refugio County Texas
BT	United States
	.Texas
	..Refugio County Texas

Regensburg Germany
BT	Europe
	.Central Europe
	..Germany
	...Bavaria Germany
	....Regensburg Germany
SN	City on Danube River in E central Bavaria, SE Germany.

Reggio Calabria
USE	Reggio di Calabria Italy

Reggio di Calabria Italy
BT	Europe
	.Southern Europe
	..Italy
	...Calabria Italy
	....Reggio di Calabria Italy
UF	Reggio Calabria
SN	City and province on Strait of Messina in S Italy.

regi

regimes, water
USE	water regimes

Regina Saskatchewan
BT	Canada
	.Western Canada
	..Saskatchewan
	...Regina Saskatchewan
SN	City in S Saskatchewan.

regional
RT	areal geology
	geography
SN	After 1977, used only as a general term for geography. Used through 1977 in combination with metamorphism; after 1977, regional metamorphism is used.

regional anomalies
RT	anomalies
	residual anomalies
SN	Added to Thesaurus in 1981.

Regional Aquifer-System Analysis Program
USE	RASA

regional metamorphism
BT	metamorphism
	.regional metamorphism
RT	Barrovian-type deposits
	burial metamorphism
	dynamic metamorphism
SN	Before 1978, also search metamorphism AND regional.

regional patterns
RT	geothermal gradient
	heat flow
	heat sources
	patterns

regional planning
RT	environmental geology
	land use
	planning
	urban planning

registration
UF	professional registration
RT	pollution
	education
	accuracy
	quality control
	cartography
	data processing
	geology
	imagery
	data bases
	practice
	licensing
	geologists
SN	As of 1998, restricted from use with geophysical methods. Use accuracy or see data processing. Not restricted to registration of professionals. Also search certification if applicable. Indexed with practice and geologists as applicable.

regolith
RT	debris
	overburden
	resurfacing
	sedimentary cover
	soils
SN	May also be used used for the Moon and planets.

Regosols
BT	soils
	.Regosols

regression
BT	sea-level changes
	.regression
RT	stratigraphy
	levels
	raised beaches
	Fischer plots
	lowstands
	transgression
	lake-level changes
	retrogradation
SN	As of 1998, restricted to use for seas.

regression analysis
BT	statistical analysis
	.regression analysis
NT	autoregression
RT	analysis
	least-squares analysis

Reguibat Ridge
BT	Africa
	.Reguibat Ridge
RT	Mauritania
	Western Sahara
SN	In NW Mauritania and Western Sahara.

regulations
RT	Clean Air Act
	Clean Water Act
	decision-making
	economic geology
	engineering geology
	environmental geology
	government agencies
	hydrogeology
	land management
	land use
	legislation
	policy
	pollution
	preservation
	protection
	public policy
	reclamation
	resources
	Saf
SN	Added to Thesaurus in 1993.

Rehamma
USE	Rehamna

Rehamna
BT	Africa
	.North Africa
	..Morocco
	...Rehamna
UF	Rehamma
SN	Tribal area N of Marrakech in W central Morocco.

Reichenstein Poland
USE	Zloty Stok Poland

Reindeer Lake
BT	Canada
	.Reindeer Lake
RT	Saskatchewan
	Manitoba
SN	NE Saskatchewan and NW Manitoba. Added to Thesaurus in 1981.

Reindeer Zone
BT	Canada
	.Western Canada
	..Reindeer Zone
RT	Saskatchewan
	Manitoba
	Churchill Province
	Hudsonian Orogeny
SN	Archean-Proterozoic, in the Trans-Hudson Orogen between the Superior and the Churchill provinces. Indexed with Manitoba and/or Saskatchewan as applicable.

reinforced materials
RT	dams
	embankments
	engineering geology
	foundations
	geogrids
	highways
	materials
	reservoirs
	rock mechanics
	slope stability
	soil mechanics
SN	Before 1993, also search reinforced soil and reinforced earth as applicable. Added to Thesaurus in 1993.

reinjection wells
RT	abandoned water wells
	artificial recharge
	fluid injection
	gas injection
	injection
	irrigation
	oil wells
	waste disposal
	waste management
SN	Added to Thesaurus in 1985.

rejuvenation head
USE	knickpoints

relation
SN	A valid general term through 1977.

relative age
RT	absolute age
	age
	biochronology
	cation-ratio dating
	cosmochronology
	electron paramagnetic resonance
	epimerization
	exposure age
	fission-track dating
	geochronology
	hydration of glass
	isochrons
	lichenometry
	meteor craters
	optical mineralogy
	overprinting
	paleo
SN	Also search specific methods if applicable. Indexed with specific method or methods.

relaxation
RT	creep
	deformation
	equilibrium
	geophysical methods
	geophysics
	kinetics
	mathematical methods
	relaxation energy
	rheology
	strain relaxation
	stress
	structural analysis
	structural geology
SN	See relaxation energy or strain relaxation if applicable. Use a more specific term if applicable. Added to Thesaurus in 1995.

relaxation energy
RT	elastic waves
	energy
	relaxation
	seismology

release fractures
BT	fractures
	.release fractures
RT	stress
	joints
SN	Before 1978, also search fractures AND release.

reliability
RT	accuracy
	errors
	maximum likelihood
	precision
	probability
	sampling
	statistical analysis
	uncertainty
SN	Used as a general term.

relict materials
RT	materials
	metamorphic rocks
	meteorites
	parent bodies
	permafrost
	provenance
	reworking
	sediments
SN	Added to Thesaurus in 1985.

relief
RT	digital terrain models
	elevation
	landform description
	landform evolution
	ocean floors
	paleorelief
	geomorphology
	relief exposure
	relief inversion
	shaded relief maps
	terrains
	topography

relief effects
RT	climate
	climate effects
	effects
	magnetic field
SN	For use in relation to the Earth's magnetic field. Added to Thesaurus in 1981.

relief exposure
RT	landforms
	relief
	geomorphology
SN	Added to Thesaurus in 1981.

relief features
USE	landforms

relief inversion
RT	basin inversion
	inversion tectonics
	landform evolution
	relief
	geomorphology
SN	Added to Thesaurus in 1981.

Relizian
BT	Chronostratigraphic Units
	.Phanerozoic
	..Cenozoic
	...Neogene
	....Miocene
	.....Relizian
RT	lower Miocene
	middle Miocene
SN	North America. Miocene, above Saucesian and below Luisian. Added to Thesaurus in 1985.

remagnetization
RT	demagnetization
	magnetization
	natural remanent magnetization
	paleomagnetism
	secondary magnetization

remanent magnetism
USE	remanent magnetization

remanent magnetization
BT	magnetization
	.remanent magnetization
NT	anhysteretic remanent magnetization
	characteristic remanent magnetization
	chemical remanent magnetization
	depositional remanent magnetization
	isothermal remanent magnetization
	natural remanent magnetization
	partial thermoremanent magnetization
	piezoremanent magnetization
	thermochemical remanent magnetization
	thermoremanent magnetization
	viscous remanent magnetization
UF	remanent magnetism
RT	adiabatic demagnetization
	demagnetization
	paleomagnetism
	magnetic field
	chemical demagnetization
	coercivity
	magnetic properties
	Koenigsberger ratio
	thermal demagnetization
	Thellier Method

remediation
NT	bioremediation
RT	biodegradation
	bioreclamation
	constructed wetlands
	incineration
	leaking underground storage tanks
	mitigation
	pollution
	pump-and-treat
	reclamation
	soil treatment
	soil vapor extraction
	soil venting
	strip mining
	waste disposal
	waste management
	water treatmen
SN	Before 1993, also search reclamation, water treatment or soil treatment if applicable. Added to Thesaurus in 1993.

remobilization
SN	As of 1981, no longer a valid term for GeoRef. Included use in petrology. See mobilization, migration of elements, geochemistry.

remote sensing
UF	remote sensing data
	remote-sensing methods
	sensing, remote
RT	aerial photography
	airborne methods
	albedo
	brightness
	automated analysis
	Apollo 11
	Apollo Program
	Apollo 12
	Apollo 13
	Apollo 14
	Apollo 15
	Apollo 16
	Apollo 17
	Apollo 8
	Apollo 9
	Apollo-Soyuz Program
	coronae
	AVHRR
	AVIRIS
	Clementine Program
	color imagery
	Dopp
SN	Used for both methods and applications. For surveys, also index geophysical surveys.

remote sensing data
USE	remote sensing

remote-sensing methods
USE	remote sensing

Renalcis
BT	cyanobacteria
	.Renalcis
RT	microfossils
	algae
SN	Genus. For paleontologic studies, index microfossils. Index algae if applicable.

Renault Formation
BT	Chronostratigraphic Units
	.Phanerozoic
	..Paleozoic
	...Carboniferous
	....Mississippian
	.....Upper Mississippian
	......Chesterian
	.......Renault Formation
RT	Kentucky
	Missouri
	Illinois
	Indiana
SN	S Illinois, S Indiana, W and central Kentucky, and SE Missouri. Added to Thesaurus in 1989.

Renazzo Meteorite
BT	meteorites
	.stony meteorites
	..chondrites
	...carbonaceous chondrites
	....CR chondrites
	.....Renazzo Meteorite
RT	CM chondrites
SN	Before 1981, also search Renazzo AND meteorites. Reclassified from the CM2 chondrite group to the type for the CR chondrite group. Added to Thesaurus in 1995.

Rendzinas
BT	soils
	.Rendzinas
RT	soil group

Renfrew County Ontario
BT	Canada
	.Eastern Canada
	..Ontario
	...Renfrew County Ontario
NT	Chalk River Ontario
RT	Perch Lake
SN	SE Ontario.

renierite
BT	sulfosalts
	.sulfogermanates
	..renierite

Renmark Australia
BT	Australasia
	.Australia
	..South Australia
	...Renmark Australia
SN	Town on Murray River in SE South Australia.

Rennes France
BT	Europe
	.Western Europe
	..France
	...Ille-et-Vilaine France
	....Rennes France
SN	City in E Brittany, NW France.

Reno County Kansas
BT	United States
	.Kansas
	..Reno County Kansas
NT	Hutchinson Kansas
SN	S central Kansas.

Reno Nevada
BT	United States
	.Nevada
	..Washoe County Nevada
	...Reno Nevada
SN	City on Truckee River in W Nevada.

Renova Formation
BT	Chronostratigraphic Units
	.Phanerozoic
	..Cenozoic
	...Paleogene
	....Renova Formation
RT	Eocene
	Oligocene
	Montana
SN	In Bozeman Group. Eocene and Oligocene. SW Montana. Indexed with age as applicable. Added to Thesaurus in 1995.

Rensselaer County New York
BT	United States
	.New York
	..Rensselaer County New York
SN	E New York.

Renville County Minnesota
BT	United States
	.Minnesota
	..Renville County Minnesota
SN	S Minnesota.

Renville County North Dakota
BT	United States
	.North Dakota
	..Renville County North Dakota
SN	N North Dakota.

replacement
SN	A valid term through 1975. After 1975, use metasomatism or pseudomorphism.

report
NT	annual report
	progress report
UF	brief report
RT	associations
	current research
	symposia
	atlas

repositories
SN	Not a valid term for GeoRef. See waste disposal sites or storage or waste disposal.

representative basins
RT	drainage basins
	ground water
	hydrogeology
	hydrology
	models
	water resources
SN	Added to Thesaurus in 1981.

reproduction
RT	eggs
	larvae
	paleontology
	sexual dimorphism

Reptilia
BT	Chordata
	.Vertebrata
	..Tetrapoda
	...Reptilia
NT	Anapsida
	Diapsida
	dinosaurs
	Testudinata
RT	eggs
	gastroliths

Republic County Kansas
BT	United States
	.Kansas
	..Republic County Kansas
SN	N Kansas.

research
RT	associations
	bibliography
	current research
	geology
	International Lithosphere Program
	programs
	progress report
	survey organizations
	technical writing

research vessels
RT	Alvin
	CYANA
	Deep Sea Drilling Project
	expeditions
	FAMOUS
	geophysical methods
	geophysical surveys
	GEOSECS
	Glomar Challenger
	International Decade of Ocean Exploration
	IPOD
	marine geology
	marine methods
	Ocean Drilling Program
	oceanography
	submersibles
SN	Added to Thesaurus in 1983.

reserves
RT	inventory
	ore grade
	prediction maps
	resources
	size
	strategic minerals
SN	Indexed with specific commodity as applicable.

reservoir properties
RT	confining pressure
	connectivity
	Darcy's law
	decompaction
	formation damage
	formation evaluation
	geothermal reservoirs
	minipermeameters
	natural gas
	naturally fractured reservoirs
	oil and gas fields
	overpressure
	petroleum
	properties
	slug tests
	tight sands
	un
SN	Not to be used in relation to surface reservoirs. Use for petroleum or geothermal reservoirs.

reservoir rocks
RT	cap rocks
	enhanced recovery
	geopressure
	geothermal energy
	geothermal reservoirs
	meteoric water
	natural gas
	naturally fractured reservoirs
	oil and gas fields
	overpressure
	petroleum
	petroleum engineering
	rocks
	roughness
	sedimentation
	source rocks
	stratigrap
SN	Use for petroleum or geothermal reservoirs.

reservoirs
UF	surface reservoirs
RT	dams
	embankments
	earthquakes
	engineering geology
	deposition
	geologic hazards
	hydrogeology
	Archie's law
	design
	hydrology
	construction
	levels
	feasibility studies
	lakes
	geomembranes
	geotextiles
	drawdown
	floods
	naturally fractured reservoirs
	ponds
	maintenance
SN	Since 1978, used only for surface reservoirs (e.g. water reservoirs behind dams). For subsurface reservoirs such as petroleum reservoirs, see reservoir rocks, reservoir properties. See geothermal reservoirs, if applicable. Used only for geological studies

reservoirs, geothermal
USE	geothermal reservoirs

residence time
RT	age
	bioaccumulation
	exposure age
	ground water
	rates
	retention
	time factor
	water regimes
SN	General concept for systems. Added to Thesaurus in 1995.

residual anomalies
RT	anomalies
	gravity anomalies
	regional anomalies
SN	Added to Thesaurus in 1981.

residual clays
BT	sediments
	.clastic sediments
	..residual clays
RT	clay
	clays
SN	Added to Thesaurus in 1981.

residual soils
RT	residuum
	soil mechanics
	soils
SN	In GeoRef, used mainly for engineering studies. Do not use for residuum. Indexed with soils if applicable.

residues, insoluble
USE	insoluble residues

residues, organic
SN	Not a valid term for GeoRef. See sedimentary rocks or sediments.

residuum
BT	sediments
	.clastic sediments
	..residuum
RT	weathering
	terrigenous materials
	residual soils

resinite
BT	macerals
	.exinite
	..resinite

resins
UF	fossil resins
	mineral resins
RT	organic compounds
	amber

resistivity
UF	electrical resistivity
RT	well-logging
	geophysical methods
	geophysical surveys
	apparent resistivity
	conductivity
	electrical logging
	electrical methods
	Archie's law
	Schlumberger methods
	crosshole methods
	electrical conductivity
	electrical sounding
	dipole-dipole methods
	Laterolog

Resita Romania
BT	Europe
	.Southern Europe
	..Romania
	...Resita Romania
BT	Europe
	.Southern Europe
	..Banat
	...Resita Romania
UF	Recita Romania
SN	City in Caras-Severin County in W Romania. This term has multiple hierarchies.

Resolution Guyot
USE	Resolution Seamount

Resolution Seamount
BT	Pacific Ocean
	.West Pacific
	..Resolution Seamount
BT	Pacific Ocean
	.North Pacific
	..Mid-Pacific Mountains
	...Resolution Seamount
UF	Resolution Guyot
RT	Central Pacific
	Leg 143
	ODP Site 866
	ODP Site 867
	ODP Site 868
SN	W Mid-Pacific Mountains. This term has multiple hierarchies.

resonance
RT	electron paramagnetic resonance
	nuclear magnetic resonance
	oscillations
	vibration

resorption
UF	reabsorption
	readsorption
RT	absorption
	adsorption
	petrology
	soils
	processes
	textures
	crystals
SN	Also index absorption or adsorption if applicable.

Resource Conservation and

Resource Conservation and Recovery Act
UF	RCRA
RT	pollution
	environmental geology
	ground water
	waste disposal
	conservation
	protection
	water resources
	radioactive waste
	water management
	water quality
	liquid waste
	solid waste
	natural resources
	resources
SN	United States legislative act enacted in the fall of 1976. Concerns waste disposal management, especially regulation of hazardous waste. Added to Thesaurus in 1989.

resources
RT	conservation
	energy sources
	inventory
	licensing
	mineral resources
	natural resources
	productive capacity
	regulations
	reserves
	Resource Conservation and Recovery Act
	size
	water resources

respiration
RT	chemosynthesis
	photosynthesis
	processes
	geochemistry
SN	Added to Thesaurus in 1981.

response
SN	As of 1981, no longer a valid term for GeoRef. Used as a general term.

Restigou

Restigouche County New Brunswick
BT	Canada
	.Eastern Canada
	..Maritime Provinces
	...New Brunswick
	....Restigouche County New Brunswick

Restigouche Estuary
BT	Canada
	.Restigouche Estuary
RT	Quebec
	New Brunswick
	Chaleur Bay
SN	W extremity of Chaleur Bay. Indexed with provinces as applicable.

restites
RT	anatexis
	igneous rocks
	magmas
	metamorphic rocks
	metasomatic rocks
	migmatites
	mixing
SN	Parts of composite rocks which were geochemically immobile. Added to Thesaurus in 1995.

restorations
SN	Not a valid GeoRef index term after 1970. See physical models; reclamation; reconstruction; sample preparation.

resurfacing
RT	cosmochronology
	cratering
	denudation
	erosion rates
	erosion surfaces
	exposure age
	extraterrestrial geology
	geochronology
	impact craters
	impact features
	landform evolution
	meteor craters
	planetology
	regolith
	relative age
	surface features
SN	Generally used for impact erosion and/or depositional processes on extraterrestrial planetary bodies on a global scale. Also index cratering if applicable. Added to Thesaurus in 1995.

resurgence
UF	rising springs
	springs, rising
RT	geomorphology
	volcanoes
	domes
	hydrology
	calderas
	cauldrons
	caves
	underground streams
	springs
	karst hydrology

retaining walls
UF	walls, retaining
RT	embankments
	slope stability
	rock mechanics
	soil mechanics
	reservoirs
	stabilization
	pressure
	landslides
	berms
	foundations
	levees
	geogrids
	tailings ponds
SN	Wall designed to resist lateral pressure of material behind it and maintain differences in elevation. Added to Thesaurus in 1993.

retention
RT	atmospheric precipitation
	hydrology
	residence time
	runoff
	water
SN	The amount of water from precipitation that has not escaped as runoff or through evapotranspiration.

Retezat Mountains
BT	Europe
	.Southern Europe
	..Romania
	...Transylvania
	....Retezat Mountains
RT	Transylvanian Alps
SN	Group in W Transylvanian Alps in SW Transylvania, W central Romania.

Retort Phosphatic Shale Member
BT	Chronostratigraphic Units
	.Phanerozoic
	..Paleozoic
	...Permian
	....Retort Phosphatic Shale Member
RT	Idaho
	Utah
	Wyoming
	Montana
	Nevada
	Phosphoria Formation
SN	Of Phosphoria Formation. E Idaho, SW Montana, Nevada, NE Utah and W Wyoming. Added to Thesaurus in 1989.

retorting
RT	combustion
	in situ
	oil shale
	petroleum engineering
	recovery
SN	Added to Thesaurus in 1985.

retrieval, data
USE	data retrieval

retrogradation
RT	parasequences
	regression
	retrograde metamorphism
	sequence stratigraphy
	shorelines
	stratigraphy
SN	For stratigraphic studies, also index regression if applicable.

retrograde
SN	A valid term through 1977.

retrograde metamorphism
BT	metamorphism
	.retrograde metamorphism
UF	diaphthoresis
	retrogressive metamorphism
RT	prograde metamorphism
	decompression
	dynamic metamorphism
	retrogradation
	polymetamorphism
SN	Before 1978, also search metamorphism AND retrograde.

retrogressive metamorphism
USE	retrograde metamorphism

Reunion
BT	Indian Ocean Islands
	.Mascarene Islands
	..Reunion
NT	Piton de la Fournaise
	Piton des Neiges
	Saint-Louis Reunion
UF	Reunion Island
SN	One of the Mascarene Islands and a French overseas territory 425 miles E of Madagascar.

Reunion Island
USE	Reunion

revegetation
UF	reforestation
RT	ecology
	fires
	forests
	riparian environment
	grasslands
	prairies
	savannas
	steppes
	tundra
SN	Added to Thesaurus in 1993.

Revelstoke British Columbia
BT	Canada
	.Western Canada
	..British Columbia
	...Revelstoke British Columbia
SN	City in SE British Columbia.

reversals
UF	self reversal
	self-reversals
RT	paleomagnetism
	magnetic field
	Earth
	pole positions
	Brunhes Chron
	Gauss Chron
	Gilbert Chron
	Jaramillo Subchron
	Matuyama Chron
	Olduvai Subchron

reverse
SN	A valid term through 1977. After 1977, use reverse faults.

reverse faults
BT	faults
	.reverse faults
RT	inversion tectonics
	thrust faults
	displacements
	imbricate tectonics
SN	Before 1978, also search faults AND reverse.

reverse slip faults
USE	thrust faults

revetments
RT	embankments
	engineering geology
	riprap
	seawalls
	shorelines
	slope stability
	waterways
SN	Facing of stone, concrete or other material on embankment to prevent scour by weathering or water action. Added to Thesaurus in 1993.

Revett Quartzite
BT	Chronostratigraphic Units
	.Precambrian
	..Proterozoic
	...Mesoproterozoic
	....Revett Quartzite
RT	Idaho
	Montana
	Washington
	Belt Supergroup
	Ravalli Group
SN	In Ravalli Group of Belt Supergroup. NE Idaho and NW Montana. Added to Thesaurus in 1985.

review
RT	bibliography
	book reviews
	critical review
SN	Used as a general term for bibliographic reviews, annual reviews and syntheses.

revision
RT	fossils
	new taxa
	taxonomy
SN	Used for revision of classification and taxonomy, especially in fossils.

Rewa India
BT	Asia
	.Indian Peninsula
	..India
	...Madhya Pradesh India
	....Rewa India
SN	City in N Madhya Pradesh, central India.

reworking
RT	deposition
	fossils
	relict materials
	sedimentation
	sediments

Rexroad Formation
BT	Chronostratigraphic Units
	.Phanerozoic
	..Cenozoic
	...Neogene
	....Pliocene
	.....upper Pliocene
	......Rexroad Formation
RT	Oklahoma
	Kansas
SN	Underlies Angell Member of Ballard Formation.

Reykjanes Peninsula
BT	Europe
	.Western Europe
	..Iceland
	...Reykjanes Peninsula
SN	WSW of Reykjavik. Also search Reykjanes.

Reykjanes Ridge
BT	Atlantic Ocean
	.North Atlantic
	..Reykjanes Ridge
RT	DSDP Site 114
	DSDP Site 407
	Leg 49
	DSDP Site 408
	DSDP Site 409
	ODP Site 983
	ODP Site 984
SN	SW of Iceland.

Reynolds County Missouri
BT	United States
	.Missouri
	..Reynolds County Missouri
SN	SE Missouri.

Reynolds Creek
RT	Idaho
	Owyhee County Idaho
SN	Flows into Snake River in extreme SW Idaho. May also occur in other locations. Indexed with counties or region as applicable.

Reynolds numb

Reynolds number
UF	Damkohler number
RT	convection
	mathematical methods
	hydrodynamics
SN	Added to Thesaurus in 1995.

Copyright © 2006-2024 IODP-MI. Search engine powered by panFMP.