IODP SEDIS - Thesaurus -

Mo
NT	Homo erectus
	Homo habilis
	Homo sapiens
USE	molybdenum

mo sapiens
NT	Homo sapiens neanderthalensis
	Homo sapiens sapiens

Moab Utah
BT	United States
	.Utah
	..Grand County Utah
	...Moab Utah
SN	City in E Utah.

Moapa Valley
BT	United States
	.Nevada
	..Clark County Nevada
	...Moapa Valley
SN	NE of Las Vegas in Clark County in S Nevada.

Mobile Alabama
BT	United States
	.Alabama
	..Mobile County Alabama
	...Mobile Alabama
SN	City on Mobile Bay in S Alabama.

Mobile Bay
BT	United States
	.Alabama
	..Mobile Bay
RT	Gulf of Mexico
	Gulf Coastal Plain
	Mississippi Sound
	Tombigbee River
SN	Inlet of Gulf of Mexico. Added to Thesaurus in 1985.

mobile belts
UF	belts, mobile
RT	tectonics
	geosynclines
	fold and thrust belts
	crust
	orogenic belts
	fold belts

Mobile County Alabama
BT	United States
	.Alabama
	..Mobile County Alabama
NT	Mobile Alabama
RT	Mississippi Sound
SN	Extreme SW Alabama.

mobility
RT	erosion
	tectonics
SN	Used as a general term.

mobilization
RT	deformation
	magma transport
	migration of elements
	geochemistry
SN	Restricted to geochemical meaning.

Mocamedes
USE	Mossamedes
SN	Not a valid term for GeoRef. River. Before 1993, also used for the province and city which were renamed. See Namibe Angola for the province and city.

Moctezuma Mexico
BT	Mexico
	.Sonora Mexico
	..Moctezuma Mexico
SN	Town in E central Sonora, NW Mexico.

mod

modal analysis
RT	analysis
	mineral composition
	geochemistry
	petrographic norms
	petrology

model studies
USE	models

modeling
USE	models

modelling
USE	models

Modelo Formation
BT	Chronostratigraphic Units
	.Phanerozoic
	..Cenozoic
	...Neogene
	....Miocene
	.....upper Miocene
	......Modelo Formation
RT	California
SN	S California. Added to Thesaurus in 1989.

models
UF	model studies
	modeling
	modelling
RT	CREAMS
	GLEAMS
	data processing
	analog simulation
	ARC/INFO
	decompaction
	general circulation models
	computer animation
	Green-Ampt model
	digital terrain models
	digital simulation
	DRAINMOD
	four-dimensional models
	GENESIS model
	infinite models
	laboratory studie
SN	From 1978-1992, this term was autoposted to many narrower terms.

Modena Italy
BT	Europe
	.Southern Europe
	..Italy
	...Emilia-Romagna Italy
	....Modena Italy
SN	City and province in central Emilia-Romagna, N Italy.

modern
RT	Holocene
SN	Used for present-day studies in conjunction with Holocene.

modern analogs
UF	analogs, modern
	analogues, modern
RT	ecology
	paleontology
	functional morphology
	morphology
	analog simulation
	models
	simulation
	paleobotany
	laboratory studies
	natural analogs
	systems analogs
SN	Also see comparison. Added to Thesaurus in 1995.

MODFLOW
RT	discharge
	finite difference analysis
	ground water
	hydrologic cycle
	models
	MODPATH
	recharge
	simulation
	three-dimensional models
SN	Acronym. Modular 3-d finite difference ground water flow model. Added to Thesaurus in 1995.

modified Mercalli scale
UF	Mercalli scale, modified
	MM scale
RT	seismology
	earthquakes
	seismic intensity
	magnitude

Modiomorphoida
USE	Actinodontida

Modoc County California
BT	United States
	.California
	..Modoc County California
RT	Clear Lake
SN	NE California.

Modoc Plateau
BT	United States
	.California
	..Modoc Plateau
SN	High, semiarid, and volcanic plateau in NE California. Also search Modoc.

MODPATH
RT	computer programs
	data processing
	ground water
	models
	MODFLOW
	simulation
	three-dimensional models
SN	Particle tracking post-processing package for the U. S. Geological Survey's MODFLOW, Modular 3-d finite difference ground water flow model.

modulus of compression
USE	compressibility

modulus of elasticity
USE	elastic constants

modulus of incompressibility
USE	bulk modulus

modulus of rigidity
USE	shear modulus

modulus, bulk
USE	bulk modulus

modulus, shear
USE	shear modulus

Moenave Formation
BT	Chronostratigraphic Units
	.Phanerozoic
	..Mesozoic
	...Moenave Formation
RT	Upper Triassic
	Lower Jurassic
	Utah
	Nevada
	Arizona
	Glen Canyon Group
SN	Lower Jurassic and Upper Triassic. In NE Arizona, S Utah, and Nevada. Member of Glen Canyon Group. Indexed with ages as applicable. Added to Thesaurus in 1993.

Moenkopi Formation
BT	Chronostratigraphic Units
	.Phanerozoic
	..Mesozoic
	...Triassic
	....Moenkopi Formation
RT	Utah
	Colorado
	California
	Nevada
	Arizona
SN	Lower and middle (?) Triassic or Triassic (?). In SW Utah, subdivided into (ascending) Timpoweap, Lower Red, Virgin Limestone, Middle Red, Shnabkaib, and Upper Red members. Arizona, California, Colorado, Nevada, and S Utah.

Moeritherioidea
BT	Chordata
	.Vertebrata
	..Tetrapoda
	...Mammalia
	....Theria
	.....Eutheria
	......Proboscidea
	.......Moeritherioidea
SN	Suborder.

Moesia
BT	Europe
	.Southern Europe
	..Moesia
RT	Serbia
	Romania
	Bulgaria
SN	Ancient region S of the lower Danube. Includes Bulgaria, SE Romania, and Serbia. Indexed with Serbia and countries as applicable.

Moesian Platform
BT	Europe
	.Southern Europe
	..Moesian Platform
RT	Romania
	Bulgaria
SN	Indexed with countries as applicable.

Moffat County Colorado
BT	United States
	.Colorado
	..Moffat County Colorado
RT	Dinosaur National Monument
	Yampa River
SN	Extreme NW Colorado.

moganite
BT	silicates
	.framework silicates
	..silica minerals
	...moganite
RT	quartz
SN	SiOimpurities.

Mogilev Belarus
BT	Europe
	.Belarus
	..Mogilev Belarus
UF	Mogilev on the Dnieper
SN	Oblast and city on the Dnieper River. This term has multiple hierarchies.

Mogilev on the Dnieper
USE	Mogilev Belarus

Mogilno Poland
BT	Europe
	.Central Europe
	..Poland
	...Bydgoszcz Poland
	....Mogilno Poland
SN	Town in Bydgoszcz, NW central Poland.

Mogollon Mountains
BT	United States
	.New Mexico
	..Catron County New Mexico
	...Mogollon Mountains
RT	Datil-Mogollon volcanic field
	Mogollon Plateau
	Mogollon Rim
SN	SW New Mexico. Added to Thesaurus in 1981.

Mogollon Plateau
BT	United States
	.Arizona
	..Mogollon Plateau
RT	Mogollon Mountains
	Mogollon Rim
SN	Tableland S of Winslow in E central Arizona.

Mogollon Rim
BT	United States
	.Arizona
	..Mogollon Rim
RT	Mogollon Mountains
	Mogollon Plateau
SN	S escarpment of Mogollon Plateau. Added to Thesaurus in 1981.

Mogollon-Datil volcanic field
USE	Datil-Mogollon volcanic field

Mohave County Arizona
BT	United States
	.Arizona
	..Mohave County Arizona
RT	Black Mountains
	Lake Mead
	Grand Canyon
	Mohave Mountains
SN	NW Arizona.

Mohave Desert
USE	Mojave Desert

Mohave Mountains
BT	United States
	.Mohave Mountains
UF	Mojave Mountains
RT	California
	Arizona
	San Bernardino County California
	Mohave County Arizona
SN	W Arizona and SE California. Indexed with states and counties as applicable. Added to Thesaurus in 1985.

Mohawk River valley
USE	Mohawk Valley

Mohawk Valley
UF	Mohawk River valley
RT	New York
	California
	Appalachian Plateau
	Feather River
SN	River valley in E central New York. Also used for part of middle fork of the Feather River, NE California. May be used in other location. Indexed with states if applicable.

Mohnian
BT	Chronostratigraphic Units
	.Phanerozoic
	..Cenozoic
	...Neogene
	....Miocene
	.....Mohnian
RT	middle Miocene
	upper Miocene
SN	North America. Miocene, above Luisian and below Delmontian. Added to Thesaurus in 1985.

Mohns Ridge
BT	Arctic Ocean
	.Norwegian Sea
	..Mohns Ridge
SN	NE of Jan Mayen, Norwegian Sea. Added to Thesaurus in 1981.

Moho
USE	Mohorovicic discontinuity

Mohoro

Mohorovicic discontinuity
UF	M-discontinuity
	Moho
RT	discontinuities
	mantle
	seismology
	earthquakes
	plate tectonics
	sea-floor spreading
	elastic waves
	Earth
	continental drift
	asthenosphere
	crust
	isostasy
	lithosphere
	tectonophysics
	basement
	Sn-waves
	core
	depth

Moine thrust zone
BT	Europe
	.Western Europe
	..United Kingdom
	...Great Britain
	....Scotland
	.....Moine thrust zone
SN	Added to Thesaurus in 1989.

Moinian
BT	Chronostratigraphic Units
	.Precambrian
	..Proterozoic
	...Neoproterozoic
	....Moinian
SN	Europe.

moissanite
BT	alloys
	.carbides
	..moissanite
RT	carborundum
	meteorites
	carbon
	silicides
	silicon
SN	Meteorite mineral.

moisture
UF	moisture content
RT	wettability
	soils
	water
	atmospheric precipitation
	water regimes
	desiccation
	water vapor
	humidity
	water content

moisture content
USE	moisture

Mojave Desert
BT	United States
	.California
	..Mojave Desert
UF	Mohave Desert
RT	Antelope Valley
	Aztec Sandstone
	Kern County California
	Big Bear earthquake 1992
	Joshua Tree earthquake 1992
	Landers earthquake 1992
	Cady Mountains
	Cajon Pass
	Calico Mountains
	Los Angeles County California
	Coyote Lake
	Hector Formation
	Old Woman Mountains
	R
SN	Arid basin in S California. Also search Mojave.

Mojave Mountains
USE	Mohave Mountains

Mokoia New Zealand
BT	Australasia
	.New Zealand
	..Taranaki New Zealand
	...Mokoia New Zealand
RT	North Island
SN	Village in SW North Island. Also index North Island.

molasse
BT	sedimentary rocks
	.clastic rocks
	..molasse
RT	terrigenous materials

Molasse Basin
BT	Europe
	.Central Europe
	..Molasse Basin
NT	Swiss Molasse Basin
RT	Switzerland
	Austria
	Germany
SN	A geologic-geographic term which refers to the feature in Europe. Also search molasse in combination with country name. Indexed with countries as applicable.

Moldanubian
UF	Moldanubicum
	Moldanubicum Complex
	Moldanubikum
RT	Precambrian
	Archean
	Paleozoic
	Austria
	Germany
	Slovakia
	Czech Republic
SN	Indexed with age as applicable.

Moldanubicum
USE	Moldanubian

Moldanubicum Complex
USE	Moldanubian

Moldanubikum
USE	Moldanubian

Moldava Valley
BT	Europe
	.Southern Europe
	..Romania
	...Moldava Valley
BT	Europe
	.Moldavia
	..Moldava Valley
UF	Moldova Valley
SN	River valley. Also search Moldava River. This term has multiple hierarchies.

Moldavia
BT	Europe
	.Moldavia
NT	Bacau Romania
	Bicaz Valley
	Bistrita Valley
	Gutii Mountains
	Iacobeni Romania
	Moldava Valley
	Moldavian Platform
	Piatra-Neamt Romania
	Suceava Romania
	Teleajen Valley
	Trotus Valley
RT	Romania
	Russian Platform
	Russian Plain
	Moldova
	Dniester River
	Dniester-Prut Interfluve
	Prut River
	Rarau Massif
	Romanian Plain
	Siret River
	Tiraspol Moldova
SN	Region E of Transylvania and N of E Walachia in Romania, and the republic of Moldova, the former Moldavian Soviet Socialist Republic. Indexed with countries as applicable.

Moldavian Plateau
USE	Moldavian Platform

Moldavian Platform
BT	Europe
	.Southern Europe
	..Romania
	...Moldavian Platform
BT	Europe
	.Moldavia
	..Moldavian Platform
UF	Moldavian Plateau
RT	Siret River
SN	This term has multiple hierarchies.

moldavite
BT	tektites
	.moldavite

Moldova
BT	Europe
	.Moldova
BT	Commonwealth of Independent States
	.Moldova
NT	Tiraspol Moldova
RT	Moldavia
	Russian Plain
	Black Sea region
	Dniester River
	Dniester-Prut Interfluve
	Prut River
SN	Republic. Former Moldavian Soviet Socialist Republic. Before 1993, also search Bessarabia if applicable; also search Moldavia AND USSR. This term has multiple hierarchies. Added to Thesaurus in 1993.

Moldova Noua Romania
BT	Europe
	.Southern Europe
	..Romania
	...Moldova Noua Romania
BT	Europe
	.Southern Europe
	..Banat
	...Moldova Noua Romania
UF	Moldova-Noua Romania
SN	Town in SW near the Serbian border in Caras-Severin County. This term has multiple hierarchies.

Moldova Valley
USE	Moldava Valley

Moldova-Noua Romania
USE	Moldova Noua Romania

molecular biology
RT	biochemistry
	biologic evolution
	biology
	DNA
	life origin
	molecular structure
	paleontology
	phylogeny
	RNA

molecular fossils
USE	biomarkers

molecular structure
RT	crystal structure
	molecular biology

Molise Italy
BT	Europe
	.Southern Europe
	..Italy
	...Molise Italy
NT	Campobasso Italy
SN	Autonomous region on the Adriatic Sea.

mollisol
USE	active layer

Mollisols
BT	soils
	.Mollisols
RT	soil group

Mollusca
BT	Invertebrata
	.Mollusca
NT	Aplacophora
	Bivalvia
	Cephalopoda
	Gastropoda
	Hyolithes
	Monoplacophora
	Polyplacophora
	Rostroconchia
	Scaphopoda
	Tentaculitida
RT	reef builders
	pearls
	Dacryoconarida

Molodezhnaya Station
BT	Antarctica
	.Molodezhnaya Station
SN	USSR station on Alasheyev Bight in Enderby Land between Lutzow-Holm Bay and Cape Ann on the Indian Ocean side. Also search Molodezhnaya.

Molokai
BT	United States
	.Hawaii
	..Molokai
RT	Maui County Hawaii
	Mauna Loa
SN	Island in Hawaii between Oahu and Maui. This term has multiple hierarchies. Indexed with Maui County Hawaii or Kalawao County Hawaii as applicable.

Molotov Russian Federation
BT	Commonwealth of Independent States
	.Russian Federation
	..Perm Russian Federation
	...Molotov Russian Federation
SN	City W of the Urals in Perm Oblast. Before 1993, Molotov Russian Republic was also used. This term has multiple hierarchies.

Molteno South Africa
BT	Africa
	.Southern Africa
	..South Africa
	...Eastern Cape Province South Africa
	....Molteno South Africa
RT	Cape Province region
SN	Town in Eastern Cape Province, S South Africa.

Moluccas
BT	Asia
	.Far East
	..Indonesia
	...Moluccas
UF	Spice Islands
SN	Group of islands between Celebes and New Guinea.

Moluya River
USE	Moulouya River

molybdates
NT	ferrimolybdite
	powellite
	umohoite
	wulfenite
RT	minerals
	tungstates

molybdenite
BT	sulfides
	.molybdenite
RT	molybdenum ores
	molybdenum

molybdenite porphyry
USE	porphyry molybdenum

molybdenum
BT	metals
	.molybdenum
UF	Mo
RT	molybdenum ores
	molybdenite
	porphyry molybdenum
SN	Chemical element. Use molybdenum ores for molybdenum as a commodity.

molybdenum ores
BT	metal ores
	.molybdenum ores
RT	Henderson Mine
	Climax Mine
	Colorado mineral belt
	molybdenite
	molybdenum
	porphyry molybdenum
	Questa Mine
SN	Commodity. See List C.

moment tensors
UF	seismic moment tensors
RT	seismology
	seismic moment
SN	Added to Thesaurus in 1998.

Momipites
BT	palynomorphs
	.miospores
	..Momipites
RT	microfossils
SN	Indexed with microfossils if applicable.

Monaco
BT	Europe
	.Western Europe
	..Monaco
SN	On the Mediterranean Sea near the French-Italian border.

Monagas Venezuela
BT	South America
	.Venezuela
	..Monagas Venezuela
RT	Orinoco River
	San Juan River
SN	State in NE Venezuela.

Monashee Complex
RT	British Columbia
	lower Mesozoic
	Shuswap Complex
	upper Paleozoic
SN	In Shuswap Complex of SE British Columbia. Indexed with ages as applicable. Added to Thesaurus in 1989.

monazite
BT	phosphates
	.monazite
RT	heavy minerals
	monazite deposits
SN	As of 1981, use monazite deposits for monazite as a commodity.

monazite deposits
RT	cerium ores
	heavy mineral deposits
	monazite
	placers
	rare earth deposits
	thorium ores
SN	Commodity. See List C.

Monchegorsk Russian Federation
BT	Commonwealth of Independent States
	.Russian Federation
	..Murmansk Russian Federation
	...Monchegorsk Russian Federation
SN	City in Murmansk Oblast about 70 miles S of Murmansk in extreme NW European Russian Federation. Before 1993, Monchegorsk Russian Republic was also used. This term has multiple hierarchies.

monchiquite
BT	igneous rocks
	.plutonic rocks
	..lamprophyres
	...monchiquite

Moncton Basin
BT	Canada
	.Eastern Canada
	..Maritime Provinces
	...New Brunswick
	....Moncton Basin
UF	Moncton Subbasin
SN	Carboniferous structural basin in New Brunswick. Added to Thesaurus in 1989.

Moncton Subbasin
USE	Moncton Basin

Monera
USE	prokaryotes

Moneron Island
BT	Commonwealth of Independent States
	.Russian Federation
	..Moneron Island
BT	Asia
	.Moneron Island
RT	Sakhalin
SN	Russian island in Japan Sea 30 miles off SW Sakhalin. This term has multiple hierarchies.

monetite
BT	phosphates
	.monetite

Monghyr India
BT	Asia
	.Indian Peninsula
	..India
	...Bihar India
	....Monghyr India
SN	City in NE central Bihar, E India.

Mongolia
BT	Asia
	.Far East
	..Mongolia
NT	Altan Teeli Mongolia
	Bayan-Nuurin-khotnor Basin
	Bayn Dzak
	Choybalsan Mongolia
	Hangay Mountains
	Ikh-Khayrkhan
	Khubsugul Mongolia
	Kobdo Mongolia
	Kobdo River
	Mongolian Altai
	Selenga Mongolia
	Ulan Bator Mongolia
UF	Outer Mongolia
RT	Altai Mountains
	Altai-Sayan region
	Amur Basin
	Gobi Desert
	Djadokhta Formation
	Kerulen River
	Yenisei-Khatanga basin
	Selenga River valley
	Tannu-Ola Range
	Yenisei Basin

Mongolian Altai
BT	Asia
	.Far East
	..Mongolia
	...Mongolian Altai
BT	Asia
	.Altai Mountains
	..Mongolian Altai
SN	Southeastern extension of the Altai Mountains. This term has multiple hierarchies.

Moniteau County Missouri
BT	United States
	.Missouri
	..Moniteau County Missouri

monitoring
RT	baseline studies
	environmental geology
	geophysical surveys
	hydrogeology
	networks
	observation wells
	pollution
	quality control
	water wells

monitoring wells
SN	Not a valid term for GeoRef. See observation wells or monitoring.

Monmouth County New Jersey
BT	United States
	.New Jersey
	..Monmouth County New Jersey
RT	Raritan Bay
	Sandy Hook
SN	On the Atlantic Ocean in E New Jersey.

Monmouth Group
BT	Chronostratigraphic Units
	.Phanerozoic
	..Mesozoic
	...Cretaceous
	....Upper Cretaceous
	.....Monmouth Group
RT	Maryland
	Delaware
	New Jersey
	Navesink Formation
SN	Includes (ascending) Mount Laurel, Navesink, Red Bank, and Tinton formations. Delaware, NE Maryland, and New Jersey.

Monmouthshire Wales
BT	Europe
	.Western Europe
	..United Kingdom
	...Great Britain
	....Wales
	.....Monmouthshire Wales
SN	Former county in SE Wales. As of April 1974, part of Gwent. Before 1993, also search Monmouth and Great Britain.

Mono Basin
BT	United States
	.California
	..Mono County California
	...Mono Basin
SN	Mono County in E California.

Mono County California
BT	United States
	.California
	..Mono County California
NT	Inyo Domes
	Long Valley Caldera
	Mono Basin
	Mono Craters
	Mono Lake
	Obsidian Dome
RT	Casa Diablo
	White Mountains
	Long Valley
	Mammoth Lakes earthquakes
	Mammoth Mountain
SN	E California.

Mono Craters
BT	United States
	.California
	..Mono County California
	...Mono Craters
RT	volcanoes
SN	Range of about 20 geologically recent volcanic cones just S of Mono Lake, Mono County in E California.

Mono Lake
BT	United States
	.California
	..Mono County California
	...Mono Lake
SN	In central Mono County in E California.

monoclines
BT	folds
	.monoclines
RT	flexure folds
SN	Not valid term from 1975-1977. Before 1978, also search folds AND monoclinal.

monoclinic system
BT	crystal systems
	.monoclinic system
RT	crystallography
SN	Before 1978, search monoclinic.

Monocotyledoneae
BT	Plantae
	.Spermatophyta
	..Angiospermae
	...Monocotyledoneae
NT	Alismidae
	Arecidae
	Commelinidae
	Cyperaceae
	Gramineae
	Liliidae
	Palmae
RT	Dicotyledoneae

monographs
UF	books
RT	catalogs
	dictionaries
	glossaries
	lexicons
	bibliography
	guidebook
	publications
	book reviews
	textbooks
	directory
	manuals
	theses
SN	Added to Thesaurus in 1982.

Monograptina
BT	Graptolithina
	.Graptoloidea
	..Monograptina
NT	Monograptus
RT	Invertebrata
	Hemichordata
SN	Indexed with Hemichordata or Invertebrata as applicable.

Monograptus
BT	Graptolithina
	.Graptoloidea
	..Monograptina
	...Monograptus
NT	Monograptus uniformis
RT	Invertebrata
	Hemichordata
SN	Genus. Indexed with Hemichordata or Invertebrata as applicable.

Monograptus uniformi

Monograptus uniformis
BT	Graptolithina
	.Graptoloidea
	..Monograptina
	...Monograptus
	....Monograptus uniformis
RT	Invertebrata
	Hemichordata
SN	Indexed with Hemichordata or Invertebrata as applicable.

monohydrocalcite
BT	carbonates
	.monohydrocalcite

monolete taxa
UF	monoletes
RT	palynomorphs
	miospores

monoletes
USE	monolete taxa

Monomoy Island
BT	United States
	.Massachusetts
	..Barnstable County Massachusetts
	...Cape Cod
	....Monomoy Island
SN	A 10 mile sandspit S of Chantham on Cape Cod. Sometimes it is connected to land and is not an island.

Monona County Iowa
BT	United States
	.Iowa
	..Monona County Iowa

Monongahela Group
BT	Chronostratigraphic Units
	.Phanerozoic
	..Paleozoic
	...Carboniferous
	....Pennsylvanian
	.....Monongahela Group
RT	Virginia
	Ohio
	Pennsylvania
	Maryland
	West Virginia
	Pittsburgh Coal
SN	In Pennsylvania, contains Pittsburgh Coal Seam at base; top of Waynesburg Coal marks upper boundary. W Maryland, E Ohio, W Pennsylvania, W Virginia, and West Virginia.

Monongalia County West Virginia
BT	United States
	.West Virginia
	..Monongalia County West Virginia
SN	N West Virginia.

Monoplacophora
BT	Invertebrata
	.Mollusca
	..Monoplacophora

Monotis
BT	Invertebrata
	.Mollusca
	..Bivalvia
	...Pteriina
	....Pectinacea
	.....Monotis
SN	Genus.

Monotremata
BT	Chordata
	.Vertebrata
	..Tetrapoda
	...Mammalia
	....Monotremata
SN	Order.

Monroe County Alabama
BT	United States
	.Alabama
	..Monroe County Alabama
SN	SW Alabama.

Monroe County Arkansas
BT	United States
	.Arkansas
	..Monroe County Arkansas
SN	E central Arkansas.

Monroe County Florida
BT	United States
	.Florida
	..Monroe County Florida
NT	Big Pine Key
	Dry Tortugas
	Key Largo
RT	Florida Keys
	Cape Sable
SN	S Florida.

Monroe County Georgia
BT	United States
	.Georgia
	..Monroe County Georgia
SN	Central Georgia.

Monroe County Illinois
BT	United States
	.Illinois
	..Monroe County Illinois
NT	Columbia Illinois
SN	SW Illinois.

Monroe County Indiana
BT	Indiana
	.Monroe County Indiana
SN	S central Indiana.

Monroe County Iowa
BT	United States
	.Iowa
	..Monroe County Iowa
SN	S Iowa.

Monroe County Kentucky
BT	United States
	.Kentucky
	..Monroe County Kentucky
SN	S Kentucky.

Monroe County Michigan
BT	United States
	.Michigan
	..Michigan Lower Peninsula
	...Monroe County Michigan
SN	Extreme SE Michigan.

Monroe County Mississippi
BT	United States
	.Mississippi
	..Monroe County Mississippi
SN	E Mississippi.

Monroe County Missouri
BT	United States
	.Missouri
	..Monroe County Missouri
SN	NE central Missouri.

Monroe County New York
BT	United States
	.New York
	..Monroe County New York
NT	Rochester New York
RT	Genesee River
SN	W New York.

Monroe County Ohio
BT	United States
	.Ohio
	..Monroe County Ohio
SN	E Ohio.

Monroe County Pennsylvania
BT	United States
	.Pennsylvania
	..Monroe County Pennsylvania
SN	E Pennsylvania.

Monroe County Tennessee
BT	United States
	.Tennessee
	..Monroe County Tennessee
SN	SE Tennessee.

Monroe County West Virginia
BT	United States
	.West Virginia
	..Monroe County West Virginia
SN	SE West Virginia.

Monroe County Wisconsin
BT	United States
	.Wisconsin
	..Monroe County Wisconsin
SN	W central Wisconsin.

Mons Basin
BT	Europe
	.Western Europe
	..Belgium
	...Mons Basin
RT	Hainaut Belgium
SN	Coal mining area near the French border. Also search Mons. Indexed with province as applicable.

monsoons
RT	hurricanes
	storms

Mont Blanc
BT	Europe
	.Western Europe
	..France
	...Haute-Savoie France
	....Savoy Alps
	.....Mont Blanc
RT	Argentiere Glacier
	Valle d'Aosta Italy
SN	In Savoy Alps near Italian border. Highest mountain in Alps. This term has multiple hierarchies.

Mont Dore France
USE	Mont-Dore France

Mont Pelee
USE	Mount Pelee

Mont-Dore France
BT	Europe
	.Western Europe
	..France
	...Puy-de-Dome France
	....Mont-Dore France
UF	Le Mont-Dore France
	Mont Dore France
	Mont-Dore-les-Bains France
SN	Town and thermal station in SE Puy-de-Dome, S central France.

Mont-Dore-les-Bains France
USE	Mont-Dore France

Mont-Saint-Michel Bay
USE	Bay of Saint-Michel

Montagne Noire
BT	Europe
	.Western Europe
	..France
	...Central Massif
	....Montagne Noire
RT	Aude France
	Tarn France
SN	Southernmost range of Central Massif. Indexed with departments as applicable.

Montague County Texas
BT	United States
	.Texas
	..Montague County Texas

Montague Island
RT	Alaska
	Prince William Sound
	Southern Alaska
SN	At entrance of Prince William Sound, SE of Anchorage in S Alaska. Also occurs in Gulf of Mexico and off New South Wales, Australia. Indexed with Southern Alaska or other regions as applicable.

Montana
BT	United States
	.Montana
NT	Beaverhead County Montana
	Big Belt Mountains
	Big Horn County Montana
	Big Snowy Mountains
	Blaine County Montana
	Boulder Batholith
	Bridger Range
	Broadwater County Montana
	Butte mining district
	Carbon County Montana
	Carter County Montana
	Cascade County Montana
	Chouteau County Montana
	Crazy Mountains Basin
	Custer County Montana
	Daniels County Montana
	Dawson County Montana
	Deer Lodge County Montana
	Fallon County Montana
	Fergus County Montana
	Flathead County Montana
	Flathead Lake
	Flint Creek Range
	Gallatin County Montana
	Garfield County Montana
	Glacier County Montana
	Golden Valley County Montana
	Granite County Montana
	Gravelly Range
	Hill County Montana
	Jefferson County Montana
	Judith Basin County Montana
	Lake County Montana
	Lewis and Clark County Montana
	Liberty County Montana
	Lincoln County Montana
	Little Belt Mountains
	Madison County Montana
	McCone County Montana
	Meagher County Montana
	Mineral County Montana
	Missoula County Montana
	Musselshell County Montana
	Park County Montana
	Petroleum County Montana
	Phillips County Montana
	Pondera County Montana
	Powder River County Montana
	Powell County Montana
	Prairie County Montana
	Ravalli County Montana
	Richland County Montana
	Roosevelt County Montana
	Rosebud County Montana
	Sanders County Montana
	Sheridan County Montana
	Shonkin Sag Laccolith
	Silver Bow County Montana
	Stillwater County Montana
	Sweet Grass County Montana
	Teton County Montana
	Toole County Montana
	Treasure County Montana
	Valley County Montana
	Wheatland County Montana
	Wibaux County Montana
	Yellowstone County Montana
	Yellowstone National Park County Montana
RT	Absaroka Range
	Absaroka Supergroup
	Altyn Limestone
	Bearpaw Formation
	Aldridge Formation
	Amsden Formation
	Arikaree Group
	Bakken Formation
	Battle Mountain High
	Bear Gulch Limestone Member
	Beartooth Mountains
	Beaverhead Formation
	Beaverhead Mountains
	Bell Cr

Montana Group
BT	Chronostratigraphic Units
	.Phanerozoic
	..Mesozoic
	...Cretaceous
	....Upper Cretaceous
	.....Montana Group
RT	New Mexico
	Utah
	Wyoming
	Montana
	Colorado
	North Dakota
	Bearpaw Formation
	Kansas
	South Dakota
	Cody Shale
	Eagle Sandstone
	Fox Hills Formation
	Pierre Shale
	Judith River Formation
	Parkman Sandstone
	Two Medicine Formation
SN	Includes Bearpaw Shale, Claggett Shale, Cody Shale (upper part), Eagle Sandstone, Fox Hills Sandstone, Horsethief Sandstone, Judith River Formation, Lennep Sandstone, Parkman Sandstone, Pierre Shale, Trinidad Sandstone, Two Medicine Formation, and Virgell

Montana Lineament
USE	Lewis and Clark Lineament

montane environment
USE	subalpine environment

Montastrea
BT	Invertebrata
	.Coelenterata
	..Anthozoa
	...Zoantharia
	....Scleractinia
	.....Montastrea
NT	Montastrea annularis
SN	Genus.

Montastrea annularis
BT	Invertebrata
	.Coelenterata
	..Anthozoa
	...Zoantharia
	....Scleractinia
	.....Montastrea
	......Montastrea annularis
SN	Species.

Montauban Meteorite
USE	Orgueil Meteorite

Montcalm County Michigan
BT	United States
	.Michigan
	..Michigan Lower Peninsula
	...Montcalm County Michigan

Montcalm County Quebec
BT	Canada
	.Eastern Canada
	..Quebec
	...Montcalm County Quebec

Monte Amiata
BT	Europe
	.Southern Europe
	..Italy
	...Apennines
	....Monte Amiata
BT	Europe
	.Southern Europe
	..Italy
	...Tuscany Italy
	....Monte Amiata
UF	Mount Amiata
	Mt. Amiata
RT	volcanoes
SN	Extinct volcano in the Apennines. This term has multiple hierarchies.

Monte Antola
BT	Europe
	.Southern Europe
	..Italy
	...Apennines
	....Ligurian Apennines
	.....Monte Antola
SN	Peak in Ligurian Apennines in NW Italy. This term has multiple hierarchies.

Monte Baldo
BT	Europe
	.Southern Europe
	..Italy
	...Veneto Italy
	....Monte Baldo
SN	Mountain range between Lake Garda and Adige River in NE Italy.

Monte Capanne
BT	Europe
	.Southern Europe
	..Italy
	...Tuscany Italy
	....Monte Capanne
RT	Elba
SN	W end of island of Elba in Mediterranean Sea off Tuscany. Indexed with Elba.

Monte Carlo analysis
BT	statistical analysis
	.Monte Carlo analysis
UF	Monte Carlo methods
RT	mathematical geology
	geostatistics
SN	Statistical method. Before 1985, also search Monte Carlo (truncated) AND statistical analysis. Added to Thesaurus in 1985.

Monte Carlo methods
USE	Monte Carlo analysis

Monte Cristo Limestone
BT	Chronostratigraphic Units
	.Phanerozoic
	..Paleozoic
	...Carboniferous
	....Mississippian
	.....Monte Cristo Limestone
RT	California
	Nevada
SN	Lower and Upper Mississippian. Consists of (ascending) Dawn Limestone, Anchor Limestone, Bullion Limestone, and Yellowpine Limestone members. SE California and SE Nevada. Indexed with states as applicable.

Monte Gargano
USE	Gargano

Monte Pisano
BT	Europe
	.Southern Europe
	..Italy
	...Tuscany Italy
	....Monte Pisano
SN	Mountain group near Pisa in NW Italy.

Monte Rosa
RT	Pennine Alps
	Piemonte Italy
	Valais Switzerland
SN	Highest mountain group in the Pennine Alps. Indexed with countries and Pennine Alps as applicable.

Monte Somma
BT	Europe
	.Southern Europe
	..Italy
	...Campania Italy
	....Monte Somma
RT	Vesuvius
SN	Semicircular ridge on N and E sides of Vesuvius in E Italy.

Monte Vulture
USE	Vulture Mountain

Monteagle Limestone
BT	Chronostratigraphic Units
	.Phanerozoic
	..Paleozoic
	...Carboniferous
	....Mississippian
	.....Upper Mississippian
	......Monteagle Limestone
RT	Alabama
	Tennessee

montebrasite
BT	phosphates
	.montebrasite
RT	amblygonite

Montenegro
BT	Europe
	.Southern Europe
	..Yugoslavia
	...Montenegro
NT	Niksic Yugoslavia
RT	Adriatic region
	Dalmatia
	Alps
	Balkan Peninsula
	Montenegro earthquake 1979
SN	Since 1991, associated with Serbia in modern Federal Republic of Yugoslavia. Before 1995, used as republic of E and NE former Yugoslavia. Also search Crna Gora.

Montenegro earthquake 1979
BT	earthquakes
	.Montenegro earthquake 1979
RT	Albania
	Montenegro
	Yugoslavia
SN	Montenegro-Albania region. Added to Thesaurus in 1993.

Monteregian Hills
BT	Canada
	.Eastern Canada
	..Quebec
	...Monteregian Hills
RT	Saint Lawrence Lowlands
SN	Located in the Saint Lawrence Lowlands of Quebec. Composed of alkalic igneous intrusive rocks of Upper Jurassic to Lower Cretaceous age. Added to Thesaurus in 1989.

Monterey Bay
BT	United States
	.California
	..Monterey Bay
RT	Monterey County California
	Santa Cruz California
	Santa Cruz County California
SN	Inlet of Pacific Ocean in Santa Cruz and Monterey counties.

Monterey California
BT	United States
	.California
	..Monterey County California
	...Monterey California
SN	City on the Pacific Ocean in W California.

Monterey Canyon
BT	Pacific Ocean
	.North Pacific
	..Northeast Pacific
	...Monterey Canyon
UF	Monterey Deep-Sea Channel
	Monterey Submarine Canyon
	Monterey Trough
RT	submarine canyons
SN	Submarine canyon just off coast of central California. This term has multiple hierarchies.

Monterey County California
BT	United States
	.California
	..Monterey County California
NT	Carmel Bay
	Carmel California
	Del Monte Beach
	Monterey California
	Parkfield California
	Salinas California
RT	Santa Lucia Range
	Monterey Bay
	Salinas Valley
SN	On the Pacific Ocean and Monterey Bay in W California.

Monterey Deep-Sea Channel
USE	Monterey Canyon

Monterey Deep-Sea Fan
USE	Monterey Fan

Monterey Fan
BT	Pacific Ocean
	.North Pacific
	..Monterey Fan
BT	Pacific Ocean
	.North Pacific
	..Northeast Pacific
	...Monterey Fan
UF	Monterey Deep-Sea Fan
SN	Off coast of central California just to the W of the Monterey Canyon. This term has multiple hierarchies.

Monterey Formation
BT	Chronostratigraphic Units
	.Phanerozoic
	..Cenozoic
	...Neogene
	....Miocene
	.....Monterey Formation
RT	California
SN	Middle and upper Miocene. Comprises (ascending) Gould Shale, Devilwater Silt, McDonald Shale, Antelope Shale, and Chico-Martinez Chert members. W California.

Monterey Submarine Canyon
USE	Monterey Canyon

Monterey Trough
USE	Monterey Canyon

Montes de Toledo
BT	Europe
	.Southern Europe
	..Iberian Peninsula
	...Spain
	....Montes de Toledo
RT	Ciudad Real Spain
	Toledo Spain
SN	Mountain range in S central Spain. Indexed with provinces as applicable.

Montesano Formation
BT	Chronostratigraphic Units
	.Phanerozoic
	..Cenozoic
	...Neogene
	....Miocene
	.....upper Miocene
	......Montesano Formation
RT	Washington
SN	Largely massive coarse-grained light-brown sandstones, with many intercalated lenses of conglomerate and grit; shales subordinate in lower part but common in upper part. SW and NW Washington.

Montevideo Uruguay
BT	South America
	.Uruguay
	..Montevideo Uruguay
SN	Department in S Uruguay. Also a city on the Rio de la Plata.

Montezuma County Colorado
BT	United States
	.Colorado
	..Montezuma County Colorado
NT	Cortez Colorado
SN	SW Colorado.

Montgomery County Alabama
BT	United States
	.Alabama
	..Montgomery County Alabama
SN	SE central Alabama.

Montgomery County Arkansas
BT	United States
	.Arkansas
	..Montgomery County Arkansas
SN	W Arkansas.

Montgomery County Georgia
BT	United States
	.Georgia
	..Montgomery County Georgia
SN	E central Georgia.

Montgomery County Illinois
BT	United States
	.Illinois
	..Montgomery County Illinois
SN	S central Illinois.

Montgomery County Indiana
BT	Indiana
	.Montgomery County Indiana
SN	W central Indiana.

Montgomery County Iowa
BT	United States
	.Iowa
	..Montgomery County Iowa
SN	SW Iowa.

Montgomery County Kansas
BT	United States
	.Kansas
	..Montgomery County Kansas
SN	SE Kansas.

Montgomery County Kentucky
BT	United States
	.Kentucky
	..Montgomery County Kentucky
SN	NE central Kentucky.

Montgomery County Maryland
BT	United States
	.Maryland
	..Montgomery County Maryland
RT	Rock Creek Park
SN	Central Maryland.

Montgomery County Mississippi
BT	United States
	.Mississippi
	..Montgomery County Mississippi
SN	Central Mississippi.

Montgomery County Missouri
BT	United States
	.Missouri
	..Montgomery County Missouri
SN	E central Missouri.

Montgomery County New York
BT	United States
	.New York
	..Montgomery County New York
SN	E central New York.

Montgomery County North Carolina
BT	United States
	.North Carolina
	..Montgomery County North Carolina
SN	Central North Carolina.

Montgomery County Ohio
BT	United States
	.Ohio
	..Montgomery County Ohio
SN	W Ohio.

Montgomery County Pennsylvania
BT	United States
	.Pennsylvania
	..Montgomery County Pennsylvania
SN	SE Pennsylvania.

Montgomery County Tennessee
BT	United States
	.Tennessee
	..Montgomery County Tennessee
SN	N Tennessee.

Montgomery County Texas
BT	United States
	.Texas
	..Montgomery County Texas
SN	E Texas.

Montgomery County Virginia
BT	United States
	.Virginia
	..Montgomery County Virginia
NT	Blacksburg Virginia
SN	SW Virginia. Also search Radford Virginia if applicable.

Monti Berici
BT	Europe
	.Southern Europe
	..Italy
	...Veneto Italy
	....Monti Berici
SN	Range of volcanic hills SW of Vicenza in NE Italy.

Monti Caronie
USE	Nebrodi Mountains

Monti Lessini
USE	Lessini Mountains

Montian
BT	Chronostratigraphic Units
	.Phanerozoic
	..Cenozoic
	...Paleogene
	....Paleocene
	.....Montian
SN	Europe. Above Danian, below Thanetian.

monticellite
BT	silicates
	.orthosilicates
	..nesosilicates
	...olivine group
	....monticellite

Monticello Iowa
BT	United States
	.Iowa
	..Jones County Iowa
	...Monticello Iowa
SN	City on Maquoketa River in E Iowa.

Monticello Kentucky
BT	United States
	.Kentucky
	..Wayne County Kentucky
	...Monticello Kentucky
SN	Town in S Kentucky.

Monticello Minnesota
BT	United States
	.Minnesota
	..Wright County Minnesota
	...Monticello Minnesota
SN	Village on Mississippi River in S central Minnesota.

Monticello New York
BT	United States
	.New York
	..Sullivan County New York
	...Monticello New York
SN	Resort village in SE New York.

Monticello Reservoir
BT	United States
	.Monticello Reservoir
RT	South Carolina
	Utah
	San Juan County Utah
	Fairfield County South Carolina
SN	Located in Fairfield County, N central South Carolina. Also in San Juan County, SE Utah. Search in conjunction with respective state. Indexed with states and counties as applicable. Added to Thesaurus in 1989.

Monticello Utah
BT	United States
	.Utah
	..San Juan County Utah
	...Monticello Utah
SN	Town in SE Utah.

Monticello Wisconsin
BT	United States
	.Wisconsin
	..Green County Wisconsin
	...Monticello Wisconsin
SN	Village in S Wisconsin.

Montmagny County Quebec
BT	Canada
	.Eastern Canada
	..Quebec
	...Montmagny County Quebec

Montmorency County Michigan
BT	United States
	.Michigan
	..Michigan Lower Peninsula
	...Montmorency County Michigan

Montmorency No. 1 County Quebec
BT	Canada
	.Eastern Canada
	..Quebec
	...Montmorency No. 1 County Quebec

Montmorency No. 2 County Quebec
BT	Canada
	.Eastern Canada
	..Quebec
	...Montmorency No. 2 County Quebec

montmorillonite
BT	silicates
	.sheet silicates
	..clay minerals
	...montmorillonite
UF	Na-montmorillonite
RT	beidellite
	K-bentonite
	smectite
	nontronite

Montour County Pennsylvania
BT	United States
	.Pennsylvania
	..Montour County Pennsylvania

Montoya Group
BT	Chronostratigraphic Units
	.Phanerozoic
	..Paleozoic
	...Ordovician
	....Montoya Group
RT	New Mexico
	Texas
	Arizona
SN	Middle and Upper Ordovician. Arizona, S New Mexico and W Texas. Includes Cable Canyon Sandstone, Upham Dolomite, Aleman Formation and Cutter Formation. Added to Thesaurus in 1989.

Montpellier France
BT	rault France
	.Montpellier France
SN	City in E Herault, S France.

Montreal and Jesus Islands County Quebec
BT	Canada
	.Eastern Canada
	..Quebec
	...Montreal and Jesus Islands County Quebec
NT	Montreal Quebec

Montreal Quebec
BT	Canada
	.Eastern Canada
	..Quebec
	...Montreal and Jesus Islands County Quebec
	....Montreal Quebec
SN	City on Montreal Island in the Saint Lawrence River in S Quebec.

Montrose County Colorado
BT	United States
	.Colorado
	..Montrose County Colorado
SN	W Colorado.

Monts des Maures
USE	Maures Massif

Monts Dome
SN	As of 1981, use Chaine des Puys.

Monts du Lyonnais
BT	Europe
	.Western Europe
	..France
	...Monts du Lyonnais
RT	Loire France
	Rhone France
SN	Indexed with departments as applicable.

Montsech
BT	Europe
	.Southern Europe
	..Iberian Peninsula
	...Spain
	....Catalonia Spain
	.....Lerida Spain
	......Montsech
SN	Foothills of the Pyrenees.

Montserrat
RT	Barcelona Spain
	Leeward Islands
	Lesser Antilles
	Soufriere
SN	Volcanic island in Leeward Islands, West Indies (N16#DG45' W062#DG14). Also a mountain in the Llobregat Valley of Barcelona Province, Spain (N41#DG36' E001#DG48'). Search in combination with country or region. Indexed with both (Leeward Islands and Lesser

monzodiorite
BT	igneous rocks
	.plutonic rocks
	..diorites
	...monzodiorite
RT	jotunite

monzogranite
BT	igneous rocks
	.plutonic rocks
	..granites
	...monzogranite
RT	monzonites

monzonites
BT	igneous rocks
	.plutonic rocks
	..syenites
	...monzonites
RT	monzogranite

Moody County South Dakota
BT	United States
	.South Dakota
	..Moody County South Dakota

Moodys Branch Formation
BT	Chronostratigraphic Units
	.Phanerozoic
	..Cenozoic
	...Paleogene
	....Eocene
	.....upper Eocene
	......Moodys Branch Formation
UF	Moodys Marl
RT	Louisiana
	Mississippi
	Alabama
	Georgia
	Jackson Group
SN	In Jackson Group. Added to Thesaurus in 1985.

Moodys Marl
USE	Moodys Branch Formation

Moon
NT	Aristarchus
	Eastern Sea
	Foaming Sea
	Fra Mauro
	Hadley Rille
	North Ray Crater
	Ocean of Storms
	Sculptured Hills
	Sea of Crises
	Sea of Fertility
	Sea of Nectar
	Sea of Rains
	Sea of Serenity
	Sea of Tranquillity
	Sea of Waves
	Shorty Crater
	South Ray Crater
	Taurus-Littrow
RT	accretion
	agglutinates
	albedo
	Apennine Front
	Apollo 8
	Apollo 9
	Apollo 11
	Apollo 12
	Apollo 14
	Apollo 15
	Apollo 16
	Apollo 17
	Apollo Program
	asteroids
	atmosphere
	Clementine Program
	condensation
	coordinates
	Copernicus Crater
	cosmic rays
	craters
	Earth
	Earth-Mo

moon rocks
SN	A valid term through mid-1978. Use lunar samples.

moonquakes
RT	earthquakes
	Moon

moonstone
BT	silicates
	.framework silicates
	..feldspar group
	...alkali feldspar
	....moonstone
RT	gems
	peristerite

Moore County Meteorite
BT	meteorites
	.stony meteorites
	..achondrites
	...eucrite
	....Moore County Meteorite
RT	North Carolina
	Moore County North Carolina
SN	Before 1981, also search Moore County AND meteorites. Added to Thesaurus in 1981.

Moore County North Carolina
BT	United States
	.North Carolina
	..Moore County North Carolina
RT	Moore County Meteorite
SN	Central North Carolina.

Moore County Tennessee
BT	United States
	.Tennessee
	..Moore County Tennessee
SN	S Tennessee.

Moore County Texas
BT	United States
	.Texas
	..Moore County Texas
SN	Extreme N Texas.

Mooreville Chalk
BT	Chronostratigraphic Units
	.Phanerozoic
	..Mesozoic
	...Cretaceous
	....Upper Cretaceous
	.....Mooreville Chalk
RT	Mississippi
	Alabama
	Selma Group
SN	In Selma Group. W Alabama and NE Mississippi. Added to Thesaurus in 1989.

Moorman Syncline
BT	United States
	.Kentucky
	..Moorman Syncline
SN	Central and W Kentucky. Added to Thesaurus in 1985.

Moose River basin
BT	Canada
	.Eastern Canada
	..Ontario
	...Moose River basin
SN	SW of lower James Bay.

Moosebar Formation
BT	Chronostratigraphic Units
	.Phanerozoic
	..Mesozoic
	...Cretaceous
	....Lower Cretaceous
	.....Moosebar Formation
RT	Alberta
	British Columbia
SN	Alberta and NE British Columbia. Added to Thesaurus in 1989.

Mor
BT	soils
	.Mor
UF	raw humus
RT	humus
	Mull

Mora County New Mexico
BT	United States
	.New Mexico
	..Mora County New Mexico
SN	NE New Mexico.

morainal plains
USE	outwash plains

moraines
RT	drift
	drumlins
	glacial features
	glacial geology
	glaciers
	outwash plains
	periglacial features
	till

Morava
USE	Moravia

Morava River valley
BT	Europe
	.Morava River valley
RT	Serbia
	Austria
	Slovakia
	Czech Republic
	Moravia
	Western Morava River
SN	River valley in NE Austria and W Slovakia and E Moravia. Also a river valley in NE central Serbia. Also search Morava; Morava River. Indexed with Austria and/or Czech Republic and/or Slovakia and/or Serbia as applicable.

Moravia
BT	Europe
	.Central Europe
	..Czech Republic
	...Moravia
NT	Brno Czech Republic
	Karvina Czech Republic
	Moravian Karst
	Nizky Jezenik Mountains
	Ostrava Czech Republic
	Ostrava-Karvina
	Stramberk Czech Republic
	Svratka Dome
UF	Morava
RT	Morava River valley
	Pannonian Basin
	Vienna Basin
	Sudeten
	Sudeten Mountains
	Sudetic Basin
	Oder Valley
	Silesia
	Tieschitz Meteorite
	Slovakian Pannonian Basin
SN	Region between Bohemia and Slovakia.

Moravian Karst
BT	Europe
	.Central Europe
	..Czech Republic
	...Moravia
	....Moravian Karst

Moravska Ostrava
USE	Ostrava Czech Republic

Moray Firth
BT	Europe
	.Western Europe
	..United Kingdom
	...Great Britain
	....Scotland
	.....Moray Firth
RT	Grampian region Scotland
	North Sea
	Grampian Highlands
	Great Glen Fault
SN	Inlet of the North Sea bordered by Grampian and Highland regions in NE Scotland. Added to Thesaurus in 1989.

MORB
USE	mid-ocean ridge basalts

Morbihan France
BT	Europe
	.Western Europe
	..France
	...Morbihan France
NT	Groix Island
RT	Brittany
	Vilaine Bay
SN	Department in NW France.

mordenite
BT	silicates
	.framework silicates
	..zeolite group
	...mordenite
UF	arduinite
	ashtonite
	flokite
	ptilolite
RT	aluminosilicates

Morecambe Bay
BT	Europe
	.Western Europe
	..United Kingdom
	...Great Britain
	....England
	.....Morecambe Bay
RT	Cumbria England
	Irish Sea
	Lancashire England
	Westmorland England
SN	Inlet of the Irish Sea in NW England.

Morehouse Parish Louisiana
BT	United States
	.Louisiana
	..Morehouse Parish Louisiana

morencite
USE	nontronite

Moreno Forma

Moreno Formation
BT	Chronostratigraphic Units
	.Phanerozoic
	..Mesozoic
	...Cretaceous
	....Upper Cretaceous
	.....Moreno Formation
RT	Paleocene
	California
	Marca Shale Member
SN	In Chico Group. Upper Cretaceous and Paleocene (?). Includes four members (ascending): Dosados Sand and Shale, Tierra Loma Shale (including Mercy Sandstone lens), Marca Shale Member, and Dos Palos Shale (includes Cima Sandstone lens). S California.

moretanes
BT	organic compounds
	.hydrocarbons
	..aromatic hydrocarbons
	...hopanoids
	....hopanes
	.....moretanes
RT	biomarkers
SN	17#2B, 21#2A(H) hopanes. This term has multiple hierarchies.

Moreton Australia
BT	Australasia
	.Australia
	..Queensland Australia
	...Moreton Australia
RT	Cape York Peninsula
SN	Village on Cape York Peninsula in N Queensland.

Moreton Bay
BT	Australasia
	.Australia
	..Queensland Australia
	...Moreton Bay
SN	In SE Queensland just N of Brisbane.

Moreton-Clarence Basin
USE	Clarence-Moreton Basin

Morez France
BT	Europe
	.Western Europe
	..France
	...Jura France
	....Morez France
SN	Town in in SE Jura, E France.

Morgan County Alabama
BT	United States
	.Alabama
	..Morgan County Alabama
SN	N Alabama.

Morgan County Colorado
BT	United States
	.Colorado
	..Morgan County Colorado
SN	NE Colorado.

Morgan County Georgia
BT	United States
	.Georgia
	..Morgan County Georgia
SN	N central Georgia.

Morgan County Illinois
BT	United States
	.Illinois
	..Morgan County Illinois
SN	W central Illinois.

Morgan County Indiana
BT	Indiana
	.Morgan County Indiana
SN	Central Indiana.

Morgan County Kentucky
BT	United States
	.Kentucky
	..Morgan County Kentucky
SN	E Kentucky.

Morgan County Missouri
BT	United States
	.Missouri
	..Morgan County Missouri
NT	Versailles Missouri
SN	Central Missouri.

Morgan County Ohio
BT	United States
	.Ohio
	..Morgan County Ohio
SN	E central Ohio.

Morgan County Tennessee
BT	United States
	.Tennessee
	..Morgan County Tennessee
SN	NE central Tennessee.

Morgan County Utah
BT	United States
	.Utah
	..Morgan County Utah
SN	N Utah.

Morgan County West Virginia
BT	United States
	.West Virginia
	..Morgan County West Virginia
SN	E West Virginia.

Morgan Hill earthquake 1984
BT	earthquakes
	.Morgan Hill earthquake 1984
RT	California
	Santa Clara County California
SN	Epicenter at Morgan Hill, Santa Clara County, Central California. Added to Thesaurus in 1989.

Morien Group
BT	Chronostratigraphic Units
	.Phanerozoic
	..Paleozoic
	...Carboniferous
	....Pennsylvanian
	.....Morien Group
RT	Nova Scotia
	Cape Breton Island
SN	Cape Breton Island. Added to Thesaurus in 1989.

Morin Complex
BT	Canada
	.Eastern Canada
	..Quebec
	...Morin Complex

Morlaix France
BT	Europe
	.Western Europe
	..France
	...Finistere France
	....Morlaix France
SN	Town on inlet of English Channel.

Mormoiron France
BT	Europe
	.Western Europe
	..France
	...Vaucluse France
	....Mormoiron France
SN	Village in SE France.

Mormon Mountains
BT	United States
	.Nevada
	..Mormon Mountains
SN	SE Nevada.

Moroccan Atlas Mountains
BT	Africa
	.North Africa
	..Morocco
	...Moroccan Atlas Mountains
BT	Africa
	.North Africa
	..Atlas Mountains
	...Moroccan Atlas Mountains
NT	Anti-Atlas
	High Atlas
	Middle Atlas
SN	Atlas Mountains in Morocco. This term has multiple hierarchies. Added to Thesaurus in 1981.

Morocco
BT	Africa
	.North Africa
	..Morocco
NT	Bou Azzer
	Cape Bojador
	Casablanca Morocco
	Moroccan Atlas Mountains
	Moulouya River
	Rabat Morocco
	Rehamna
	Rif
	Tafilalt
	Tangier Morocco
	Taourirt Morocco
	Tarfaya Morocco
	Taza Morocco
UF	Spanish Morocco
RT	Sahara
	Mediterranean region
	Atlas Mountains
	Maghreb
	Ceuta
	Western Sahara
	Melilla
	Meseta
SN	Before 1960, Spanish Morocco was also used.

Moroe County West Virginia
BT	United States
	.West Virginia
	..Moroe County West Virginia

Moroto Mountain
BT	Africa
	.East Africa
	..Uganda
	...Moroto Mountain
SN	Just E of town of Moroto near Kenya border.

morphodynamics
SN	As of 1998, not a valid term for GeoRef. Use landform evolution.

morphology
NT	functional morphology
RT	aggregate
	anatomy
	biomechanics
	coiling
	craniums
	cuticles
	description
	enamel
	extremities
	feet
	fish scales
	homology
	horizon differentiation
	horizons
	horns
	ichnofossils
	Lagerstatten
	micromorphology
	modern analogs
	muscles
	nervous system
	nests
	paleopathology
	P

morphometry
RT	landform description
	geomorphology
	quantitative geomorphology
SN	Used as a general term.

morphostructures
RT	basins
	domes
	geomorphology
	trenches

Morrill County Nebraska
BT	United States
	.Nebraska
	..Morrill County Nebraska

Morris County Kansas
BT	United States
	.Kansas
	..Morris County Kansas
SN	E central Kansas.

Morris County New Jersey
BT	United States
	.New Jersey
	..Morris County New Jersey
NT	Picatinny Arsenal
RT	New Jersey Highlands
	Long Valley
SN	N New Jersey.

Morris County Texas
BT	United States
	.Texas
	..Morris County Texas
SN	NE Texas.

Morrison County Minnesota
BT	United States
	.Minnesota
	..Morrison County Minnesota

Morrison Formation
BT	Chronostratigraphic Units
	.Phanerozoic
	..Mesozoic
	...Jurassic
	....Upper Jurassic
	.....Morrison Formation
RT	New Mexico
	Utah
	Wyoming
	Montana
	Oklahoma
	Colorado
	Kansas
	Arizona
	South Dakota
	Brushy Basin Shale Member
	Salt Wash Sandstone Member
	Westwater Canyon Sandstone Member
SN	In Plata Mountains of Colorado, comprises (ascending) Pony Express Limestone, Bilk Creek Sandstone, Wanakah Marl (restricted), and Junction Creek Sandstone.

Morrow County Ohio
BT	United States
	.Ohio
	..Morrow County Ohio
SN	Central Ohio.

Morrow County Oregon
BT	United States
	.Oregon
	..Morrow County Oregon
SN	N Oregon.

Morrow Formation
BT	Chronostratigraphic Units
	.Phanerozoic
	..Paleozoic
	...Carboniferous
	....Pennsylvanian
	.....Morrow Formation
RT	Oklahoma
	Arkansas
	Morrowan
SN	Composed of shales with some thin limestones and occasional sandstones. SE Arkansas, and central E and NE Oklahoma.

Morrow Series
USE	Morrowan

Morrowan
BT	Chronostratigraphic Units
	.Phanerozoic
	..Paleozoic
	...Carboniferous
	....Pennsylvanian
	.....Lower Pennsylvanian
	......Morrowan
NT	Bloyd Formation
UF	Morrow Series
	Morrowan Series
RT	Chesterian
	Watahomigi Formation
	Springer Formation
	Morrow Formation
SN	Provincial series, North America. Above Chesterian (Mississippian), below Atokan.

Morrowan Series
USE	Morrowan

Mortagne France
BT	Europe
	.Western Europe
	..France
	...Orne France
	....Mortagne France
UF	Mortagne-au-Perchey France
SN	Town in SE Orne, NW France.

Mortagne-au-Perchey France
USE	Mortagne France

Morton County Kansas
BT	United States
	.Kansas
	..Morton County Kansas
SN	Extreme SW Kansas.

Morton County North Dakota
BT	United States
	.North Dakota
	..Morton County North Dakota
SN	Central North Dakota.

Morvan
BT	Europe
	.Western Europe
	..France
	...Central Massif
	....Morvan
UF	Morvan Massif
	Morvan Mountains
RT	Saone-et-Loire France
	Yonne France
	Cote-d'Or France
	Nievre France
SN	Northernmost spur of the Central Massif. Indexed with departments as applicable.

Morvan Massif
USE	Morvan

Morvan Mountains
USE	Morvan

Mosabani Mine
USE	Mosaboni Mines

Mosaboni Mines
BT	Asia
	.Indian Peninsula
	..India
	...Bihar India
	....Mosaboni Mines
UF	Mosabani Mine
	Musabani copper mines
	Mushabani copper mines
RT	mines
	copper ores
SN	SE Bihar, India. Also search Mosaboni.

mosaics
UF	photomosaics
RT	aerial photography
	photogeology
	photogrammetry
	photography
	remote sensing
	space photography
	multispectral scanner
	SAR
	thematic mapper
	imagery
	multispectral analysis
	photogeologic maps
SN	Added to Thesaurus in 1982.

Mosasauridae
BT	Chordata
	.Vertebrata
	..Tetrapoda
	...Reptilia
	....Diapsida
	.....Lepidosauria
	......Squamata
	.......Lacertilia
	........Mosasauridae
SN	Family. Also search Mosasaurus.

Mosbas
USE	Moscow Basin

Moscovian
BT	Chronostratigraphic Units
	.Phanerozoic
	..Paleozoic
	...Carboniferous
	....Pennsylvanian
	.....Moscovian
BT	Chronostratigraphic Units
	.Phanerozoic
	..Paleozoic
	...Carboniferous
	....Upper Carboniferous
	.....Moscovian
SN	Russia.

moscovite
USE	muscovite

Moscow Basin
BT	Commonwealth of Independent States
	.Russian Federation
	..Moscow Basin
BT	Europe
	.Moscow Basin
UF	Mosbas
	Moscow coal basin
RT	coal fields
SN	Lignite basin extending over 600 miles in an arc from Borovichi in Leningrad Oblast to Skopin, SE of Moscow, in Ryazan Oblast. This term has multiple hierarchies.

Moscow coal basin
USE	Moscow Basin

Moscow Formation
BT	Chronostratigraphic Units
	.Phanerozoic
	..Paleozoic
	...Devonian
	....Middle Devonian
	.....Moscow Formation
RT	Pennsylvania
	New York
	Hamilton Group
SN	In Hamilton Group. W and central New York and Pennsylvania. Added to Thesaurus in 1989.

Moscow River
USE	Moskva River

Moscow Russian Federation
BT	Commonwealth of Independent States
	.Russian Federation
	..Moscow Russian Federation
BT	Europe
	.Moscow Russian Federation
UF	Moskva Russian Federation
SN	Oblast and city in W central Russian Federation. Before 1993, Moscow Russian Republic was also used. This term has multiple hierarchies.

Moscow State University
USE	Moscow University

Moscow Syneclise
BT	Commonwealth of Independent States
	.Russian Federation
	..Moscow Syneclise
BT	Europe
	.Moscow Syneclise
RT	Moscow-Pechora Syneclise
SN	SE European Russian Federation. This term has multiple hierarchies.

Moscow University
UF	Moscow State University
RT	Russian Federation
	academic institutions
SN	In Moscow.

Moscow-Pechora Syneclise
BT	Commonwealth of Independent States
	.Moscow-Pechora Syneclise
BT	Russian Platform
	.Moscow-Pechora Syneclise
RT	Russian Federation
	Europe
	Pechora Basin
	Pechora River
	Moscow Syneclise
SN	This term has multiple hierarchies. Indexed with countries and Europe if applicable. Added to Thesaurus in 1981.

Mosel Valley
USE	Moselle Valley

Moselle France
BT	Europe
	.Western Europe
	..France
	...Moselle France
RT	Lorraine
	Saar Basin
SN	Department in NE France.

Moselle River
BT	Europe
	.Moselle River
RT	France
	Germany
	Luxembourg
SN	Rises in NE France and flows N and NE entering the Rhine River at Koblenz. Indexed with countries as applicable.

Moselle Valley
BT	Europe
	.Moselle Valley
UF	Mosel Valley
RT	France
	Germany
	Luxembourg
SN	River valley. Indexed with countries as applicable.

Moskva River
BT	Commonwealth of Independent States
	.Russian Federation
	..Moskva River
BT	Asia
	.Moskva River
UF	Moscow River
SN	Flows through Moscow and then SE into the Oka River. This term has multiple hierarchies.

Moskva Russian Federation
USE	Moscow Russian Federation

Mosquito Range
RT	Colorado
	U. S. Rocky Mountains
SN	S part of Park Range near Leadville. Indexed with U. S. Rocky Mountains and Colorado counties or regions as applicable.

Mossamedes
BT	Africa
	.Central Africa
	..Angola
	...Mossamedes
UF	Mocamedes
RT	Namibe Angola
SN	Desert and basin in extreme SW part of Angola. Before 1993, also used for the province and city. As of 1993, see Namibe Angola for the province and city.

Mossbauer
SN	A valid index term through 1977. After 1977, use Mossbauer spectroscopy or Mossbauer spectra.

Mossbauer analysis
USE	Mossbauer spectroscopy

Mossbauer effect
SN	Not a valid GeoRef index term after 1971. Used in subfile G. Now use Mossbauer spectra or Mossbauer spectroscopy.

Mossbauer spectra
BT	spectra
	.Mossbauer spectra
RT	spectroscopy
	Mossbauer spectroscopy
SN	Before 1978, also search Mossbauer.

Mossbauer spectroscopy
BT	spectroscopy
	.Mossbauer spectroscopy
UF	Mossbauer analysis
RT	chemical analysis
	analysis
	Mossbauer spectra
SN	Before 1978, also search Mossbauer AND spectroscopy.

Motagua Fault
BT	Central America
	.Guatemala
	..Motagua Fault
SN	SE Guatemala. Added to Thesaurus in 1981.

motion, ground
USE	ground motion

motion, plasma
SN	Not a valid term for GeoRef. Usually out-of-scope. Used as plasma motion with magnetosphere.

motion, strong
USE	strong motion

motions
RT	acceleration
	angular momentum
	Chandler wobble
	Earth
	eccentricity
	Milankovitch theory
	Moon
	nutation
	obliquity of the ecliptic
	orbits
	oscillations
	precession
	rotation

Motley County Texas
BT	United States
	.Texas
	..Motley County Texas

Motojuku Formation
BT	Chronostratigraphic Units
	.Phanerozoic
	..Cenozoic
	...Neogene
	....Miocene
	.....Motojuku Formation
RT	Honshu
	Japan

Moty Formation
RT	Lower Cambrian
	Russian Federation
	Siberia
SN	Siberia. ?Lower Cambrian. Indexed with age or ages as applicable. Added to Thesaurus in 1989.

Moulouya River
BT	Africa
	.North Africa
	..Morocco
	...Moulouya River
UF	Moluya River
	Mulwiya River
SN	Rises in central part of country and flows NE into Mediterranean Sea. Before 1978, also search Moluya, Mulwiya, or Moulouya.

Moultrie County Illinois
BT	United States
	.Illinois
	..Moultrie County Illinois

mounds
RT	bedding plane irregularities
	Isoptera
	mud mounds
	nests
	sedimentary structures
	termite mounds
SN	Also index bedding plane irregularities as applicable.

mounds, algal
USE	algal mounds

Mount Adams
BT	United States
	.Mount Adams
RT	Washington
	New Hampshire
	Cascade Range
	Coos County New Hampshire
	White Mountains
	Yakima County Washington
SN	Mountain in Presidential Range of White Mountains, Coos County, N New Hampshire. Also a mountain in Cascade Range, Yakima County, S Washington. Indexed with states and counties and mountain ranges as applicable. Added to Thesaurus in 1985.

Mount Agoeng
USE	Mount Agung

Mount Agung
BT	Asia
	.Far East
	..Indonesia
	...Bali
	....Mount Agung
UF	Agung, Mount
	Mount Agoeng
RT	volcanoes
SN	Highest volcanic peak on Bali. This term has multiple hierarchies.

Mount Amiata
USE	Monte Amiata

Mount Antero
BT	United States
	.Colorado
	..Chaffee County Colorado
	...Mount Antero
BT	United States
	.U. S. Rocky Mountains
	..Sawatch Range
	...Mount Antero
SN	Peak in Sawatch Range, central Colorado. This term has multiple hierarchies. Added to Thesaurus in 1985.

Mount Asama
USE	Asama

Mount Baker
RT	Cascade Range
	Uganda
	Washington
	Whatcom County Washington
SN	Peak in Cascade Range, NW Washington. Also a peak in the Ruwenzori mountain group in W Uganda. Indexed with Washington, Whatcom County Washington, and Cascade Range; or Uganda and Ruwenzori as applicable. Added to Thesaurus in 1985.

Mount Borah
USE	Borah Peak

Mount Borah earthquake, 1983
USE	Borah Peak earthquake 1983

Mount Cameroon
BT	Africa
	.West Africa
	..Cameroon
	...Mount Cameroon
UF	Cameroon Mountain
RT	volcanoes
SN	Mountain. SW Cameroon. Added to Thesaurus in 1989.

Mount Carmel
BT	Asia
	.Middle East
	..Israel
	...Mount Carmel
RT	Geula Caves
SN	Mountain in N near Mediterranean coast.

Mount Egmont
BT	Australasia
	.New Zealand
	..Taranaki New Zealand
	...Mount Egmont
UF	Egmont, Mount
	Mount Taranaki
	Taranaki, Mount
RT	volcanoes
SN	Large stratovolcano, W North Island, New Zealand. Indexed with North Island.

Mount Elbrus
USE	Elbrus

Mount Erebus
RT	Alberta
	Antarctica
	Canadian Rocky Mountains
	Jasper National Park
	Ross Island
	volcanoes
SN	Mountain in SW Alberta. Also a volcano on Ross Island, Antarctica. Indexed with Alberta and Canadian Rocky Mountains; or Antarctica and Ross Island as applicable. Added to Thesaurus in 1985.

Mount Etna
BT	Europe
	.Southern Europe
	..Italy
	...Sicily Italy
	....Mount Etna
UF	Etna
RT	volcanoes
SN	Active volcano in NE Sicily.

Mount Everest
BT	malayas
	.Mount Everest
UF	Chomolungma
	Qomolangma Feng
RT	China
	Xizang China
	Nepal
SN	On China-Nepal border. Indexed with Nepal and/or Xizang China as applicable. Added to Thesaurus in 1985.

Mount Fuji
USE	Fujiyama

Mount Girnar
BT	Asia
	.Indian Peninsula
	..India
	...Gujarat India
	....Mount Girnar
RT	Kathiawar
SN	S central Kathiawar Peninsula.

Mount Hakone
BT	nshu
	.Mount Hakone
UF	Hakone Volcano
RT	volcanoes
	Hakone
SN	Extinct volcano in central Honshu. Before 1993, also search Hakone.

Mount Hood
BT	United States
	.Oregon
	..Mount Hood
BT	United States
	.Cascade Range
	..Mount Hood
RT	Clackamas County Oregon
	Hood River County Oregon
SN	Peak in Cascade Range in Clackamas and Hood River counties. This term has multiple hierarchies.

Mount Isa Australia
BT	Australasia
	.Australia
	..Queensland Australia
	...Mount Isa Australia
SN	Town and mining center in W Queensland, Australia.

Mount Isa Inlier
BT	Australasia
	.Australia
	..Queensland Australia
	...Mount Isa Inlier
SN	Proterozoic, NW Queensland.

Mount Jefferson
RT	Cascade Range
	Coos County New Hampshire
	Jefferson County Oregon
	Linn County Oregon
	Marion County Oregon
	Nevada
	New Hampshire
	Nye County Nevada
	Oregon
	Toquima Range
	United States
	White Mountains
SN	On the border of Jefferson, Linn and Marion counties, Cascade Range, N central Oregon; also in Toquima Range, Nye County, central Nevada; and in Presidential Range of White Mountains, Coos County, New Hampshire. Indexed with states, counties, and mountain

Mount Katahdin
BT	United States
	.Maine
	..Piscataquis County Maine
	...Mount Katahdin
SN	N terminus of the Appalachian Trail in N central Maine. Indexed with mountain range as applicable. Added to Thesaurus in 1989.

Mount Kenya
BT	Africa
	.East Africa
	..Kenya
	...Mount Kenya
RT	volcanoes
SN	Extinct volcano in central Kenya.

Mount Lassen
USE	Lassen Peak

Mount Lofty Ranges
BT	Australasia
	.Australia
	..South Australia
	...Mount Lofty Ranges
SN	SE South Australia.

Mount Lyell
RT	California
	Sierra Nevada
	Tasmania Australia
SN	Site of metals mining activity in W Tasmania. Also a peak in Sierra Nevada near junction of Madera, Mariposa, and Tuolumne counties in E central California. Indexed with location and mountain ranges as applicable.

Mount Mazama
BT	United States
	.Oregon
	..Klamath County Oregon
	...Mount Mazama
RT	volcanoes
	Crater Lake
	Mazama Ash
SN	Prehistoric volcano in S Oregon. Caldera now occupied by Crater Lake. Added to Thesaurus in 1985.

Mount McKinley National Park
USE	Denali National Park

Mount Meager
BT	Canada
	.Western Canada
	..British Columbia
	...Mount Meager
UF	Meager, Mount
RT	volcanoes
SN	SW British Columbia near the Garibaldi volcanic belt.

Mount Melbourne
BT	Antarctica
	.Victoria Land
	..Mount Melbourne
UF	Melbourne, Mount
RT	volcanoes
SN	Coast of Victoria Land near Terra Nova Bay.

Mount Mihara
BT	nshu
	.Izu-shichito
	..Izu-Oshima
	...Mount Mihara
UF	Mihara (Mount)
	Mihara Volcano
	Mihara-Yama
RT	volcanoes
	O-shima
SN	Use for the volcano on Izu-Oshima of Izu-shichito island group S of Sagami Bay. Also search Mihara. Before 1993, O-shima was a broader term. Izu-Oshima was also used to refer to the volcano before 1993.

Mount Morgan
RT	Glacier National Park
	Montana
	Queensland Australia
SN	Mining center in E Queensland. Also a peak in Glacier National Park in NW Montana. After 1992, use Mount Morgan Australia for the town. Indexed with county or region and mountain range as applicable.

Mount Namjagbarwa
BT	Asia
	.Himalayas
	..Mount Namjagbarwa
BT	Asia
	.Far East
	..China
	...Xizang China
	....Mount Namjagbarwa
UF	Namjagbarwa, Mount
SN	Himalayas of Xizang, SW China. This term has multiple hierarchies. Added to Thesaurus in 1989.

Mount Olympus
USE	Olympus

Mount Ontake
USE	Ontake

Mount Pelee
BT	Caribbean region
	.West Indies
	..Antilles
	...Lesser Antilles
	....Martinique
	.....Mount Pelee
UF	Mont Pelee
RT	volcanoes
SN	Volcano. N Martinique. Added to Thesaurus in 1989.

Mount Pinatubo
BT	Asia
	.Far East
	..Philippine Islands
	...Luzon
	....Mount Pinatubo
UF	Pinatubo
RT	volcanoes
SN	Volcano on SE Luzon, NE Philippine Islands. Recent plinian-type eruption. Added to Thesaurus in 1995.

Mount Rainier
BT	United States
	.Cascade Range
	..Mount Rainier
BT	United States
	.Washington
	..Pierce County Washington
	...Mount Rainier
RT	volcanoes
	Nisqually Glacier
SN	Volcanic peak of Cascade Range in Mount Rainier National Park in W central Washington. This term has multiple hierarchies.

Mount Rainier National Park
BT	United States
	.Washington
	..Mount Rainier National Park
RT	national parks
	Lewis County Washington
	Pierce County Washington
SN	W central part of state. Mt. Rainier occupies one fourth of park area in W central Washington.

Mount Read Volcanics
BT	Chronostratigraphic Units
	.Phanerozoic
	..Paleozoic
	...Cambrian
	....Mount Read Volcanics
RT	Tasmania Australia
SN	Cambrian. W Tasmania. Added to Thesaurus in 1993.

Mount Redoubt
USE	Redoubt

Mount Saint Helens
BT	United States
	.Cascade Range
	..Mount Saint Helens
BT	United States
	.Washington
	..Skamania County Washington
	...Mount Saint Helens
RT	volcanoes
SN	Peak in NW Skamania County in S Washington. This term has multiple hierarchies.

Mount Scopus Gr

Mount Scopus Group
RT	Eocene
	Ghareb Formation
	Israel
	Jordan
	K-T boundary
	Paleocene
	Syria
	Upper Cretaceous
SN	Senonian to Eocene. Indexed with ages as applicable. Added to Thesaurus in 1989.

Mount Shasta
BT	United States
	.California
	..Siskiyou County California
	...Mount Shasta
BT	United States
	.Cascade Range
	..Mount Shasta
SN	Cascade Range, N California. This term has multiple hierarchies. Added to Thesaurus in 1985.

Mount Shields Formation
BT	Chronostratigraphic Units
	.Precambrian
	..Proterozoic
	...Mesoproterozoic
	....Mount Shields Formation
RT	Idaho
	Montana
	Belt Supergroup
	Missoula Group
SN	In Missoula Group of Belt Supergroup. Added to Thesaurus in 1989.

Mount Simon Sandstone
BT	Chronostratigraphic Units
	.Phanerozoic
	..Paleozoic
	...Cambrian
	....Upper Cambrian
	.....Mount Simon Sandstone
RT	Iowa
	Illinois
	Indiana
	Ohio
	Wisconsin
	Minnesota
	Michigan
SN	Unconformably overlies Precambrian basement; underlies Eau Claire Formation. Added to Thesaurus in 1989.

Mount Spurr
BT	United States
	.Alaska
	..Southern Alaska
	...Mount Spurr
UF	Spurr, Mount
RT	volcanoes
SN	N Aleutian Range.

Mount Taranaki
USE	Mount Egmont

Mount Wood
BT	Canada
	.Western Canada
	..Yukon Territory
	...Mount Wood
RT	Saint Elias Mountains
SN	Peak of Saint Elias Mountains in SW Yukon Territory.

mountain building
SN	A valid term through 1973. After 1973, use orogeny.

mountain crystal
USE	quartz crystal

mountains
RT	alpine environment
	highlands
	hills
	landform description
	landforms
	mesas
	geomorphology

Mountrail County North Dakota
BT	United States
	.North Dakota
	..Mountrail County North Dakota

Mousterian
BT	Chronostratigraphic Units
	.Phanerozoic
	..Cenozoic
	...Stone Age
	....Paleolithic
	.....Mousterian
RT	Pleistocene
	archaeology
	Quaternary
SN	Archaeological classification.

Mouthoumet Massif
BT	Europe
	.Western Europe
	..France
	...Aude France
	....Mouthoumet Massif
SN	S France. Also search Mouthoumet.

Mouydir
BT	Africa
	.North Africa
	..Algeria
	...Mouydir
SN	Mountains in S central Algeria.

movement
UF	movements
RT	plate tectonics
	soils
	ground water
	circulation
	magma transport
	transport
	preferential flow
	water regimes
	ice movement
SN	As of 1995, not to be used for pollution. Use pollutants AND transport.

movements
USE	movement

movements, mass
USE	mass movements

movements, vertical
USE	vertical movements

moveout
UF	moveouts
RT	reflection methods
	elastic waves
	seismic methods
	arrival time
	dip moveout
	normal moveout
	common-depth-point method
	traveltime
SN	Added to Thesaurus in 1989.

moveouts
USE	moveout

Mower County Minnesota
BT	United States
	.Minnesota
	..Mower County Minnesota

Mowry Shale
BT	Chronostratigraphic Units
	.Phanerozoic
	..Mesozoic
	...Cretaceous
	....Lower Cretaceous
	.....Mowry Shale
RT	Upper Cretaceous
	Wyoming
	Montana
	South Dakota
	Colorado Group
SN	In Colorado Group. Consists of hard lighter-gray shales and thin bedded sandstones that weather light gray and form ridges. Montana, W South Dakota, and Wyoming. Indexed with states as applicable.

Moxa Arch
BT	United States
	.Moxa Arch
RT	Utah
	Wyoming
	Box Elder County Utah
	Dakota Formation
	Sweetwater County Wyoming
	Green River basin
	Lincoln County Wyoming
	Sublette County Wyoming
	Uinta County Wyoming
SN	NS trending anticlinorium in Green River basin of SW Wyoming and NE Utah. Known for petroleum production. Indexed with counties as applicable. Added to Thesaurus in 1993.

Mozambique
BT	Africa
	.East Africa
	..Mozambique
NT	Maputo Mozambique
	Tete Mozambique
	Zambezia Mozambique
UF	Portuguese East Africa
RT	Zambezi Valley
	Limpopo Orogeny
	Ecca Group
	Limpopo Basin
	Limpopo Belt
	East African Rift
	Lake Malawi
	Mozambique Belt
	Lebombo Mountains
SN	Before 1969, Portuguese East Africa was used.

Mozambique Belt
BT	Africa
	.Mozambique Belt
RT	Ethiopia
	Kenya
	Malawi
	Mozambique
	Tanzania
SN	Orogenic belt. Mountains in N extend to the rim of the Great Rift Valley in E Africa. Indexed with countries as applicable.

Mozambique Channel
BT	Indian Ocean
	.Mozambique Channel
RT	DSDP Site 242
	DSDP Site 243
	DSDP Site 244
SN	Strait between Madagascar and Mozambique.