Mo  search
NTHomo erectus
 Homo habilis
 Homo sapiens
USEmolybdenum
mo sapiens  search
NTHomo sapiens neanderthalensis
 Homo sapiens sapiens
Moab Utah  search
BTUnited States
 .Utah
 ..Grand County Utah
 ...Moab Utah
SNCity in E Utah.
Moapa Valley  search
BTUnited States
 .Nevada
 ..Clark County Nevada
 ...Moapa Valley
SNNE of Las Vegas in Clark County in S Nevada.
Mobile Alabama  search
BTUnited States
 .Alabama
 ..Mobile County Alabama
 ...Mobile Alabama
SNCity on Mobile Bay in S Alabama.
Mobile Bay  search
BTUnited States
 .Alabama
 ..Mobile Bay
RTGulf of Mexico
 Gulf Coastal Plain
 Mississippi Sound
 Tombigbee River
SNInlet of Gulf of Mexico. Added to Thesaurus in 1985.
mobile belts  search
UFbelts, mobile
RTtectonics
 geosynclines
 fold and thrust belts
 crust
 orogenic belts
 fold belts
Mobile County Alabama  search
BTUnited States
 .Alabama
 ..Mobile County Alabama
NTMobile Alabama
RTMississippi Sound
SNExtreme SW Alabama.
mobility  search
RTerosion
 tectonics
SNUsed as a general term.
mobilization  search
RTdeformation
 magma transport
 migration of elements
 geochemistry
SNRestricted to geochemical meaning.
Mocamedes  search
USEMossamedes
SNNot 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  search
BTMexico
 .Sonora Mexico
 ..Moctezuma Mexico
SNTown in E central Sonora, NW Mexico.
mod  search
modal analysis  search
RTanalysis
 mineral composition
 geochemistry
 petrographic norms
 petrology
model studies  search
USEmodels
modeling  search
USEmodels
modelling  search
USEmodels
Modelo Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Neogene
 ....Miocene
 .....upper Miocene
 ......Modelo Formation
RTCalifornia
SNS California. Added to Thesaurus in 1989.
models  search
UFmodel studies
 modeling
 modelling
RTCREAMS
 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
SNFrom 1978-1992, this term was autoposted to many narrower terms.
Modena Italy  search
BTEurope
 .Southern Europe
 ..Italy
 ...Emilia-Romagna Italy
 ....Modena Italy
SNCity and province in central Emilia-Romagna, N Italy.
modern  search
RTHolocene
SNUsed for present-day studies in conjunction with Holocene.
modern analogs  search
UFanalogs, modern
 analogues, modern
RTecology
 paleontology
 functional morphology
 morphology
 analog simulation
 models
 simulation
 paleobotany
 laboratory studies
 natural analogs
 systems analogs
SNAlso see comparison. Added to Thesaurus in 1995.
MODFLOW  search
RTdischarge
 finite difference analysis
 ground water
 hydrologic cycle
 models
 MODPATH
 recharge
 simulation
 three-dimensional models
SNAcronym. Modular 3-d finite difference ground water flow model. Added to Thesaurus in 1995.
modified Mercalli scale  search
UFMercalli scale, modified
 MM scale
RTseismology
 earthquakes
 seismic intensity
 magnitude
Modiomorphoida  search
USEActinodontida
Modoc County California  search
BTUnited States
 .California
 ..Modoc County California
RTClear Lake
SNNE California.
Modoc Plateau  search
BTUnited States
 .California
 ..Modoc Plateau
SNHigh, semiarid, and volcanic plateau in NE California. Also search Modoc.
MODPATH  search
RTcomputer programs
 data processing
 ground water
 models
 MODFLOW
 simulation
 three-dimensional models
SNParticle tracking post-processing package for the U. S. Geological Survey's MODFLOW, Modular 3-d finite difference ground water flow model.
modulus of compression  search
USEcompressibility
modulus of elasticity  search
USEelastic constants
modulus of incompressibility  search
USEbulk modulus
modulus of rigidity  search
USEshear modulus
modulus, bulk  search
USEbulk modulus
modulus, shear  search
USEshear modulus
Moenave Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Mesozoic
 ...Moenave Formation
RTUpper Triassic
 Lower Jurassic
 Utah
 Nevada
 Arizona
 Glen Canyon Group
SNLower 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  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Mesozoic
 ...Triassic
 ....Moenkopi Formation
RTUtah
 Colorado
 California
 Nevada
 Arizona
SNLower 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  search
BTChordata
 .Vertebrata
 ..Tetrapoda
 ...Mammalia
 ....Theria
 .....Eutheria
 ......Proboscidea
 .......Moeritherioidea
SNSuborder.
Moesia  search
BTEurope
 .Southern Europe
 ..Moesia
RTSerbia
 Romania
 Bulgaria
SNAncient region S of the lower Danube. Includes Bulgaria, SE Romania, and Serbia. Indexed with Serbia and countries as applicable.
Moesian Platform  search
BTEurope
 .Southern Europe
 ..Moesian Platform
RTRomania
 Bulgaria
SNIndexed with countries as applicable.
Moffat County Colorado  search
BTUnited States
 .Colorado
 ..Moffat County Colorado
RTDinosaur National Monument
 Yampa River
SNExtreme NW Colorado.
moganite  search
BTsilicates
 .framework silicates
 ..silica minerals
 ...moganite
RTquartz
SNSiOimpurities.
Mogilev Belarus  search
BTEurope
 .Belarus
 ..Mogilev Belarus
UFMogilev on the Dnieper
SNOblast and city on the Dnieper River. This term has multiple hierarchies.
Mogilev on the Dnieper  search
USEMogilev Belarus
Mogilno Poland  search
BTEurope
 .Central Europe
 ..Poland
 ...Bydgoszcz Poland
 ....Mogilno Poland
SNTown in Bydgoszcz, NW central Poland.
Mogollon Mountains  search
BTUnited States
 .New Mexico
 ..Catron County New Mexico
 ...Mogollon Mountains
RTDatil-Mogollon volcanic field
 Mogollon Plateau
 Mogollon Rim
SNSW New Mexico. Added to Thesaurus in 1981.
Mogollon Plateau  search
BTUnited States
 .Arizona
 ..Mogollon Plateau
RTMogollon Mountains
 Mogollon Rim
SNTableland S of Winslow in E central Arizona.
Mogollon Rim  search
BTUnited States
 .Arizona
 ..Mogollon Rim
RTMogollon Mountains
 Mogollon Plateau
SNS escarpment of Mogollon Plateau. Added to Thesaurus in 1981.
Mogollon-Datil volcanic field  search
USEDatil-Mogollon volcanic field
Mohave County Arizona  search
BTUnited States
 .Arizona
 ..Mohave County Arizona
RTBlack Mountains
 Lake Mead
 Grand Canyon
 Mohave Mountains
SNNW Arizona.
Mohave Desert  search
USEMojave Desert
Mohave Mountains  search
BTUnited States
 .Mohave Mountains
UFMojave Mountains
RTCalifornia
 Arizona
 San Bernardino County California
 Mohave County Arizona
SNW Arizona and SE California. Indexed with states and counties as applicable. Added to Thesaurus in 1985.
Mohawk River valley  search
USEMohawk Valley
Mohawk Valley  search
UFMohawk River valley
RTNew York
 California
 Appalachian Plateau
 Feather River
SNRiver 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  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Neogene
 ....Miocene
 .....Mohnian
RTmiddle Miocene
 upper Miocene
SNNorth America. Miocene, above Luisian and below Delmontian. Added to Thesaurus in 1985.
Mohns Ridge  search
BTArctic Ocean
 .Norwegian Sea
 ..Mohns Ridge
SNNE of Jan Mayen, Norwegian Sea. Added to Thesaurus in 1981.
Moho  search
USEMohorovicic discontinuity
Mohoro  search
Mohorovicic discontinuity  search
UFM-discontinuity
 Moho
RTdiscontinuities
 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  search
BTEurope
 .Western Europe
 ..United Kingdom
 ...Great Britain
 ....Scotland
 .....Moine thrust zone
SNAdded to Thesaurus in 1989.
Moinian  search
BTChronostratigraphic Units
 .Precambrian
 ..Proterozoic
 ...Neoproterozoic
 ....Moinian
SNEurope.
moissanite  search
BTalloys
 .carbides
 ..moissanite
RTcarborundum
 meteorites
 carbon
 silicides
 silicon
SNMeteorite mineral.
moisture  search
UFmoisture content
RTwettability
 soils
 water
 atmospheric precipitation
 water regimes
 desiccation
 water vapor
 humidity
 water content
moisture content  search
USEmoisture
Mojave Desert  search
BTUnited States
 .California
 ..Mojave Desert
UFMohave Desert
RTAntelope 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
SNArid basin in S California. Also search Mojave.
Mojave Mountains  search
USEMohave Mountains
Mokoia New Zealand  search
BTAustralasia
 .New Zealand
 ..Taranaki New Zealand
 ...Mokoia New Zealand
RTNorth Island
SNVillage in SW North Island. Also index North Island.
molasse  search
BTsedimentary rocks
 .clastic rocks
 ..molasse
RTterrigenous materials
Molasse Basin  search
BTEurope
 .Central Europe
 ..Molasse Basin
NTSwiss Molasse Basin
RTSwitzerland
 Austria
 Germany
SNA geologic-geographic term which refers to the feature in Europe. Also search molasse in combination with country name. Indexed with countries as applicable.
Moldanubian  search
UFMoldanubicum
 Moldanubicum Complex
 Moldanubikum
RTPrecambrian
 Archean
 Paleozoic
 Austria
 Germany
 Slovakia
 Czech Republic
SNIndexed with age as applicable.
Moldanubicum  search
USEMoldanubian
Moldanubicum Complex  search
USEMoldanubian
Moldanubikum  search
USEMoldanubian
Moldava Valley  search
BTEurope
 .Southern Europe
 ..Romania
 ...Moldava Valley
BTEurope
 .Moldavia
 ..Moldava Valley
UFMoldova Valley
SNRiver valley. Also search Moldava River. This term has multiple hierarchies.
Moldavia  search
BTEurope
 .Moldavia
NTBacau Romania
 Bicaz Valley
 Bistrita Valley
 Gutii Mountains
 Iacobeni Romania
 Moldava Valley
 Moldavian Platform
 Piatra-Neamt Romania
 Suceava Romania
 Teleajen Valley
 Trotus Valley
RTRomania
 Russian Platform
 Russian Plain
 Moldova
 Dniester River
 Dniester-Prut Interfluve
 Prut River
 Rarau Massif
 Romanian Plain
 Siret River
 Tiraspol Moldova
SNRegion 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  search
USEMoldavian Platform
Moldavian Platform  search
BTEurope
 .Southern Europe
 ..Romania
 ...Moldavian Platform
BTEurope
 .Moldavia
 ..Moldavian Platform
UFMoldavian Plateau
RTSiret River
SNThis term has multiple hierarchies.
moldavite  search
BTtektites
 .moldavite
Moldova  search
BTEurope
 .Moldova
BTCommonwealth of Independent States
 .Moldova
NTTiraspol Moldova
RTMoldavia
 Russian Plain
 Black Sea region
 Dniester River
 Dniester-Prut Interfluve
 Prut River
SNRepublic. 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  search
BTEurope
 .Southern Europe
 ..Romania
 ...Moldova Noua Romania
BTEurope
 .Southern Europe
 ..Banat
 ...Moldova Noua Romania
UFMoldova-Noua Romania
SNTown in SW near the Serbian border in Caras-Severin County. This term has multiple hierarchies.
Moldova Valley  search
USEMoldava Valley
Moldova-Noua Romania  search
USEMoldova Noua Romania
molecular biology  search
RTbiochemistry
 biologic evolution
 biology
 DNA
 life origin
 molecular structure
 paleontology
 phylogeny
 RNA
molecular fossils  search
USEbiomarkers
molecular structure  search
RTcrystal structure
 molecular biology
Molise Italy  search
BTEurope
 .Southern Europe
 ..Italy
 ...Molise Italy
NTCampobasso Italy
SNAutonomous region on the Adriatic Sea.
mollisol  search
USEactive layer
Mollisols  search
BTsoils
 .Mollisols
RTsoil group
Mollusca  search
BTInvertebrata
 .Mollusca
NTAplacophora
 Bivalvia
 Cephalopoda
 Gastropoda
 Hyolithes
 Monoplacophora
 Polyplacophora
 Rostroconchia
 Scaphopoda
 Tentaculitida
RTreef builders
 pearls
 Dacryoconarida
Molodezhnaya Station  search
BTAntarctica
 .Molodezhnaya Station
SNUSSR station on Alasheyev Bight in Enderby Land between Lutzow-Holm Bay and Cape Ann on the Indian Ocean side. Also search Molodezhnaya.
Molokai  search
BTUnited States
 .Hawaii
 ..Molokai
RTMaui County Hawaii
 Mauna Loa
SNIsland 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  search
BTCommonwealth of Independent States
 .Russian Federation
 ..Perm Russian Federation
 ...Molotov Russian Federation
SNCity W of the Urals in Perm Oblast. Before 1993, Molotov Russian Republic was also used. This term has multiple hierarchies.
Molteno South Africa  search
BTAfrica
 .Southern Africa
 ..South Africa
 ...Eastern Cape Province South Africa
 ....Molteno South Africa
RTCape Province region
SNTown in Eastern Cape Province, S South Africa.
Moluccas  search
BTAsia
 .Far East
 ..Indonesia
 ...Moluccas
UFSpice Islands
SNGroup of islands between Celebes and New Guinea.
Moluya River  search
USEMoulouya River
molybdates  search
NTferrimolybdite
 powellite
 umohoite
 wulfenite
RTminerals
 tungstates
molybdenite  search
BTsulfides
 .molybdenite
RTmolybdenum ores
 molybdenum
molybdenite porphyry  search
USEporphyry molybdenum
molybdenum  search
BTmetals
 .molybdenum
UFMo
RTmolybdenum ores
 molybdenite
 porphyry molybdenum
SNChemical element. Use molybdenum ores for molybdenum as a commodity.
molybdenum ores  search
BTmetal ores
 .molybdenum ores
RTHenderson Mine
 Climax Mine
 Colorado mineral belt
 molybdenite
 molybdenum
 porphyry molybdenum
 Questa Mine
SNCommodity. See List C.
moment tensors  search
UFseismic moment tensors
RTseismology
 seismic moment
SNAdded to Thesaurus in 1998.
Momipites  search
BTpalynomorphs
 .miospores
 ..Momipites
RTmicrofossils
SNIndexed with microfossils if applicable.
Monaco  search
BTEurope
 .Western Europe
 ..Monaco
SNOn the Mediterranean Sea near the French-Italian border.
Monagas Venezuela  search
BTSouth America
 .Venezuela
 ..Monagas Venezuela
RTOrinoco River
 San Juan River
SNState in NE Venezuela.
Monashee Complex  search
RTBritish Columbia
 lower Mesozoic
 Shuswap Complex
 upper Paleozoic
SNIn Shuswap Complex of SE British Columbia. Indexed with ages as applicable. Added to Thesaurus in 1989.
monazite  search
BTphosphates
 .monazite
RTheavy minerals
 monazite deposits
SNAs of 1981, use monazite deposits for monazite as a commodity.
monazite deposits  search
RTcerium ores
 heavy mineral deposits
 monazite
 placers
 rare earth deposits
 thorium ores
SNCommodity. See List C.
Monchegorsk Russian Federation  search
BTCommonwealth of Independent States
 .Russian Federation
 ..Murmansk Russian Federation
 ...Monchegorsk Russian Federation
SNCity 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  search
BTigneous rocks
 .plutonic rocks
 ..lamprophyres
 ...monchiquite
Moncton Basin  search
BTCanada
 .Eastern Canada
 ..Maritime Provinces
 ...New Brunswick
 ....Moncton Basin
UFMoncton Subbasin
SNCarboniferous structural basin in New Brunswick. Added to Thesaurus in 1989.
Moncton Subbasin  search
USEMoncton Basin
Monera  search
USEprokaryotes
Moneron Island  search
BTCommonwealth of Independent States
 .Russian Federation
 ..Moneron Island
BTAsia
 .Moneron Island
RTSakhalin
SNRussian island in Japan Sea 30 miles off SW Sakhalin. This term has multiple hierarchies.
monetite  search
BTphosphates
 .monetite
Monghyr India  search
BTAsia
 .Indian Peninsula
 ..India
 ...Bihar India
 ....Monghyr India
SNCity in NE central Bihar, E India.
Mongolia  search
BTAsia
 .Far East
 ..Mongolia
NTAltan 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
UFOuter Mongolia
RTAltai 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  search
BTAsia
 .Far East
 ..Mongolia
 ...Mongolian Altai
BTAsia
 .Altai Mountains
 ..Mongolian Altai
SNSoutheastern extension of the Altai Mountains. This term has multiple hierarchies.
Moniteau County Missouri  search
BTUnited States
 .Missouri
 ..Moniteau County Missouri
monitoring  search
RTbaseline studies
 environmental geology
 geophysical surveys
 hydrogeology
 networks
 observation wells
 pollution
 quality control
 water wells
monitoring wells  search
SNNot a valid term for GeoRef. See observation wells or monitoring.
Monmouth County New Jersey  search
BTUnited States
 .New Jersey
 ..Monmouth County New Jersey
RTRaritan Bay
 Sandy Hook
SNOn the Atlantic Ocean in E New Jersey.
Monmouth Group  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Mesozoic
 ...Cretaceous
 ....Upper Cretaceous
 .....Monmouth Group
RTMaryland
 Delaware
 New Jersey
 Navesink Formation
SNIncludes (ascending) Mount Laurel, Navesink, Red Bank, and Tinton formations. Delaware, NE Maryland, and New Jersey.
Monmouthshire Wales  search
BTEurope
 .Western Europe
 ..United Kingdom
 ...Great Britain
 ....Wales
 .....Monmouthshire Wales
SNFormer county in SE Wales. As of April 1974, part of Gwent. Before 1993, also search Monmouth and Great Britain.
Mono Basin  search
BTUnited States
 .California
 ..Mono County California
 ...Mono Basin
SNMono County in E California.
Mono County California  search
BTUnited States
 .California
 ..Mono County California
NTInyo Domes
 Long Valley Caldera
 Mono Basin
 Mono Craters
 Mono Lake
 Obsidian Dome
RTCasa Diablo
 White Mountains
 Long Valley
 Mammoth Lakes earthquakes
 Mammoth Mountain
SNE California.
Mono Craters  search
BTUnited States
 .California
 ..Mono County California
 ...Mono Craters
RTvolcanoes
SNRange of about 20 geologically recent volcanic cones just S of Mono Lake, Mono County in E California.
Mono Lake  search
BTUnited States
 .California
 ..Mono County California
 ...Mono Lake
SNIn central Mono County in E California.
monoclines  search
BTfolds
 .monoclines
RTflexure folds
SNNot valid term from 1975-1977. Before 1978, also search folds AND monoclinal.
monoclinic system  search
BTcrystal systems
 .monoclinic system
RTcrystallography
SNBefore 1978, search monoclinic.
Monocotyledoneae  search
BTPlantae
 .Spermatophyta
 ..Angiospermae
 ...Monocotyledoneae
NTAlismidae
 Arecidae
 Commelinidae
 Cyperaceae
 Gramineae
 Liliidae
 Palmae
RTDicotyledoneae
monographs  search
UFbooks
RTcatalogs
 dictionaries
 glossaries
 lexicons
 bibliography
 guidebook
 publications
 book reviews
 textbooks
 directory
 manuals
 theses
SNAdded to Thesaurus in 1982.
Monograptina  search
BTGraptolithina
 .Graptoloidea
 ..Monograptina
NTMonograptus
RTInvertebrata
 Hemichordata
SNIndexed with Hemichordata or Invertebrata as applicable.
Monograptus  search
BTGraptolithina
 .Graptoloidea
 ..Monograptina
 ...Monograptus
NTMonograptus uniformis
RTInvertebrata
 Hemichordata
SNGenus. Indexed with Hemichordata or Invertebrata as applicable.
Monograptus uniformi  search
Monograptus uniformis  search
BTGraptolithina
 .Graptoloidea
 ..Monograptina
 ...Monograptus
 ....Monograptus uniformis
RTInvertebrata
 Hemichordata
SNIndexed with Hemichordata or Invertebrata as applicable.
monohydrocalcite  search
BTcarbonates
 .monohydrocalcite
monolete taxa  search
UFmonoletes
RTpalynomorphs
 miospores
monoletes  search
USEmonolete taxa
Monomoy Island  search
BTUnited States
 .Massachusetts
 ..Barnstable County Massachusetts
 ...Cape Cod
 ....Monomoy Island
SNA 10 mile sandspit S of Chantham on Cape Cod. Sometimes it is connected to land and is not an island.
Monona County Iowa  search
BTUnited States
 .Iowa
 ..Monona County Iowa
Monongahela Group  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Carboniferous
 ....Pennsylvanian
 .....Monongahela Group
RTVirginia
 Ohio
 Pennsylvania
 Maryland
 West Virginia
 Pittsburgh Coal
SNIn 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  search
BTUnited States
 .West Virginia
 ..Monongalia County West Virginia
SNN West Virginia.
Monoplacophora  search
BTInvertebrata
 .Mollusca
 ..Monoplacophora
Monotis  search
BTInvertebrata
 .Mollusca
 ..Bivalvia
 ...Pteriina
 ....Pectinacea
 .....Monotis
SNGenus.
Monotremata  search
BTChordata
 .Vertebrata
 ..Tetrapoda
 ...Mammalia
 ....Monotremata
SNOrder.
Monroe County Alabama  search
BTUnited States
 .Alabama
 ..Monroe County Alabama
SNSW Alabama.
Monroe County Arkansas  search
BTUnited States
 .Arkansas
 ..Monroe County Arkansas
SNE central Arkansas.
Monroe County Florida  search
BTUnited States
 .Florida
 ..Monroe County Florida
NTBig Pine Key
 Dry Tortugas
 Key Largo
RTFlorida Keys
 Cape Sable
SNS Florida.
Monroe County Georgia  search
BTUnited States
 .Georgia
 ..Monroe County Georgia
SNCentral Georgia.
Monroe County Illinois  search
BTUnited States
 .Illinois
 ..Monroe County Illinois
NTColumbia Illinois
SNSW Illinois.
Monroe County Indiana  search
BTIndiana
 .Monroe County Indiana
SNS central Indiana.
Monroe County Iowa  search
BTUnited States
 .Iowa
 ..Monroe County Iowa
SNS Iowa.
Monroe County Kentucky  search
BTUnited States
 .Kentucky
 ..Monroe County Kentucky
SNS Kentucky.
Monroe County Michigan  search
BTUnited States
 .Michigan
 ..Michigan Lower Peninsula
 ...Monroe County Michigan
SNExtreme SE Michigan.
Monroe County Mississippi  search
BTUnited States
 .Mississippi
 ..Monroe County Mississippi
SNE Mississippi.
Monroe County Missouri  search
BTUnited States
 .Missouri
 ..Monroe County Missouri
SNNE central Missouri.
Monroe County New York  search
BTUnited States
 .New York
 ..Monroe County New York
NTRochester New York
RTGenesee River
SNW New York.
Monroe County Ohio  search
BTUnited States
 .Ohio
 ..Monroe County Ohio
SNE Ohio.
Monroe County Pennsylvania  search
BTUnited States
 .Pennsylvania
 ..Monroe County Pennsylvania
SNE Pennsylvania.
Monroe County Tennessee  search
BTUnited States
 .Tennessee
 ..Monroe County Tennessee
SNSE Tennessee.
Monroe County West Virginia  search
BTUnited States
 .West Virginia
 ..Monroe County West Virginia
SNSE West Virginia.
Monroe County Wisconsin  search
BTUnited States
 .Wisconsin
 ..Monroe County Wisconsin
SNW central Wisconsin.
Mons Basin  search
BTEurope
 .Western Europe
 ..Belgium
 ...Mons Basin
RTHainaut Belgium
SNCoal mining area near the French border. Also search Mons. Indexed with province as applicable.
monsoons  search
RThurricanes
 storms
Mont Blanc  search
BTEurope
 .Western Europe
 ..France
 ...Haute-Savoie France
 ....Savoy Alps
 .....Mont Blanc
RTArgentiere Glacier
 Valle d'Aosta Italy
SNIn Savoy Alps near Italian border. Highest mountain in Alps. This term has multiple hierarchies.
Mont Dore France  search
USEMont-Dore France
Mont Pelee  search
USEMount Pelee
Mont-Dore France  search
BTEurope
 .Western Europe
 ..France
 ...Puy-de-Dome France
 ....Mont-Dore France
UFLe Mont-Dore France
 Mont Dore France
 Mont-Dore-les-Bains France
SNTown and thermal station in SE Puy-de-Dome, S central France.
Mont-Dore-les-Bains France  search
USEMont-Dore France
Mont-Saint-Michel Bay  search
USEBay of Saint-Michel
Montagne Noire  search
BTEurope
 .Western Europe
 ..France
 ...Central Massif
 ....Montagne Noire
RTAude France
 Tarn France
SNSouthernmost range of Central Massif. Indexed with departments as applicable.
Montague County Texas  search
BTUnited States
 .Texas
 ..Montague County Texas
Montague Island  search
RTAlaska
 Prince William Sound
 Southern Alaska
SNAt 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  search
BTUnited States
 .Montana
NTBeaverhead 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
RTAbsaroka 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  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Mesozoic
 ...Cretaceous
 ....Upper Cretaceous
 .....Montana Group
RTNew 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
SNIncludes 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  search
USELewis and Clark Lineament
montane environment  search
USEsubalpine environment
Montastrea  search
BTInvertebrata
 .Coelenterata
 ..Anthozoa
 ...Zoantharia
 ....Scleractinia
 .....Montastrea
NTMontastrea annularis
SNGenus.
Montastrea annularis  search
BTInvertebrata
 .Coelenterata
 ..Anthozoa
 ...Zoantharia
 ....Scleractinia
 .....Montastrea
 ......Montastrea annularis
SNSpecies.
Montauban Meteorite  search
USEOrgueil Meteorite
Montcalm County Michigan  search
BTUnited States
 .Michigan
 ..Michigan Lower Peninsula
 ...Montcalm County Michigan
Montcalm County Quebec  search
BTCanada
 .Eastern Canada
 ..Quebec
 ...Montcalm County Quebec
Monte Amiata  search
BTEurope
 .Southern Europe
 ..Italy
 ...Apennines
 ....Monte Amiata
BTEurope
 .Southern Europe
 ..Italy
 ...Tuscany Italy
 ....Monte Amiata
UFMount Amiata
 Mt. Amiata
RTvolcanoes
SNExtinct volcano in the Apennines. This term has multiple hierarchies.
Monte Antola  search
BTEurope
 .Southern Europe
 ..Italy
 ...Apennines
 ....Ligurian Apennines
 .....Monte Antola
SNPeak in Ligurian Apennines in NW Italy. This term has multiple hierarchies.
Monte Baldo  search
BTEurope
 .Southern Europe
 ..Italy
 ...Veneto Italy
 ....Monte Baldo
SNMountain range between Lake Garda and Adige River in NE Italy.
Monte Capanne  search
BTEurope
 .Southern Europe
 ..Italy
 ...Tuscany Italy
 ....Monte Capanne
RTElba
SNW end of island of Elba in Mediterranean Sea off Tuscany. Indexed with Elba.
Monte Carlo analysis  search
BTstatistical analysis
 .Monte Carlo analysis
UFMonte Carlo methods
RTmathematical geology
 geostatistics
SNStatistical method. Before 1985, also search Monte Carlo (truncated) AND statistical analysis. Added to Thesaurus in 1985.
Monte Carlo methods  search
USEMonte Carlo analysis
Monte Cristo Limestone  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Carboniferous
 ....Mississippian
 .....Monte Cristo Limestone
RTCalifornia
 Nevada
SNLower 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  search
USEGargano
Monte Pisano  search
BTEurope
 .Southern Europe
 ..Italy
 ...Tuscany Italy
 ....Monte Pisano
SNMountain group near Pisa in NW Italy.
Monte Rosa  search
RTPennine Alps
 Piemonte Italy
 Valais Switzerland
SNHighest mountain group in the Pennine Alps. Indexed with countries and Pennine Alps as applicable.
Monte Somma  search
BTEurope
 .Southern Europe
 ..Italy
 ...Campania Italy
 ....Monte Somma
RTVesuvius
SNSemicircular ridge on N and E sides of Vesuvius in E Italy.
Monte Vulture  search
USEVulture Mountain
Monteagle Limestone  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Carboniferous
 ....Mississippian
 .....Upper Mississippian
 ......Monteagle Limestone
RTAlabama
 Tennessee
montebrasite  search
BTphosphates
 .montebrasite
RTamblygonite
Montenegro  search
BTEurope
 .Southern Europe
 ..Yugoslavia
 ...Montenegro
NTNiksic Yugoslavia
RTAdriatic region
 Dalmatia
 Alps
 Balkan Peninsula
 Montenegro earthquake 1979
SNSince 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  search
BTearthquakes
 .Montenegro earthquake 1979
RTAlbania
 Montenegro
 Yugoslavia
SNMontenegro-Albania region. Added to Thesaurus in 1993.
Monteregian Hills  search
BTCanada
 .Eastern Canada
 ..Quebec
 ...Monteregian Hills
RTSaint Lawrence Lowlands
SNLocated 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  search
BTUnited States
 .California
 ..Monterey Bay
RTMonterey County California
 Santa Cruz California
 Santa Cruz County California
SNInlet of Pacific Ocean in Santa Cruz and Monterey counties.
Monterey California  search
BTUnited States
 .California
 ..Monterey County California
 ...Monterey California
SNCity on the Pacific Ocean in W California.
Monterey Canyon  search
BTPacific Ocean
 .North Pacific
 ..Northeast Pacific
 ...Monterey Canyon
UFMonterey Deep-Sea Channel
 Monterey Submarine Canyon
 Monterey Trough
RTsubmarine canyons
SNSubmarine canyon just off coast of central California. This term has multiple hierarchies.
Monterey County California  search
BTUnited States
 .California
 ..Monterey County California
NTCarmel Bay
 Carmel California
 Del Monte Beach
 Monterey California
 Parkfield California
 Salinas California
RTSanta Lucia Range
 Monterey Bay
 Salinas Valley
SNOn the Pacific Ocean and Monterey Bay in W California.
Monterey Deep-Sea Channel  search
USEMonterey Canyon
Monterey Deep-Sea Fan  search
USEMonterey Fan
Monterey Fan  search
BTPacific Ocean
 .North Pacific
 ..Monterey Fan
BTPacific Ocean
 .North Pacific
 ..Northeast Pacific
 ...Monterey Fan
UFMonterey Deep-Sea Fan
SNOff coast of central California just to the W of the Monterey Canyon. This term has multiple hierarchies.
Monterey Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Neogene
 ....Miocene
 .....Monterey Formation
RTCalifornia
SNMiddle and upper Miocene. Comprises (ascending) Gould Shale, Devilwater Silt, McDonald Shale, Antelope Shale, and Chico-Martinez Chert members. W California.
Monterey Submarine Canyon  search
USEMonterey Canyon
Monterey Trough  search
USEMonterey Canyon
Montes de Toledo  search
BTEurope
 .Southern Europe
 ..Iberian Peninsula
 ...Spain
 ....Montes de Toledo
RTCiudad Real Spain
 Toledo Spain
SNMountain range in S central Spain. Indexed with provinces as applicable.
Montesano Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Neogene
 ....Miocene
 .....upper Miocene
 ......Montesano Formation
RTWashington
SNLargely 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  search
BTSouth America
 .Uruguay
 ..Montevideo Uruguay
SNDepartment in S Uruguay. Also a city on the Rio de la Plata.
Montezuma County Colorado  search
BTUnited States
 .Colorado
 ..Montezuma County Colorado
NTCortez Colorado
SNSW Colorado.
Montgomery County Alabama  search
BTUnited States
 .Alabama
 ..Montgomery County Alabama
SNSE central Alabama.
Montgomery County Arkansas  search
BTUnited States
 .Arkansas
 ..Montgomery County Arkansas
SNW Arkansas.
Montgomery County Georgia  search
BTUnited States
 .Georgia
 ..Montgomery County Georgia
SNE central Georgia.
Montgomery County Illinois  search
BTUnited States
 .Illinois
 ..Montgomery County Illinois
SNS central Illinois.
Montgomery County Indiana  search
BTIndiana
 .Montgomery County Indiana
SNW central Indiana.
Montgomery County Iowa  search
BTUnited States
 .Iowa
 ..Montgomery County Iowa
SNSW Iowa.
Montgomery County Kansas  search
BTUnited States
 .Kansas
 ..Montgomery County Kansas
SNSE Kansas.
Montgomery County Kentucky  search
BTUnited States
 .Kentucky
 ..Montgomery County Kentucky
SNNE central Kentucky.
Montgomery County Maryland  search
BTUnited States
 .Maryland
 ..Montgomery County Maryland
RTRock Creek Park
SNCentral Maryland.
Montgomery County Mississippi  search
BTUnited States
 .Mississippi
 ..Montgomery County Mississippi
SNCentral Mississippi.
Montgomery County Missouri  search
BTUnited States
 .Missouri
 ..Montgomery County Missouri
SNE central Missouri.
Montgomery County New York  search
BTUnited States
 .New York
 ..Montgomery County New York
SNE central New York.
Montgomery County North Carolina  search
BTUnited States
 .North Carolina
 ..Montgomery County North Carolina
SNCentral North Carolina.
Montgomery County Ohio  search
BTUnited States
 .Ohio
 ..Montgomery County Ohio
SNW Ohio.
Montgomery County Pennsylvania  search
BTUnited States
 .Pennsylvania
 ..Montgomery County Pennsylvania
SNSE Pennsylvania.
Montgomery County Tennessee  search
BTUnited States
 .Tennessee
 ..Montgomery County Tennessee
SNN Tennessee.
Montgomery County Texas  search
BTUnited States
 .Texas
 ..Montgomery County Texas
SNE Texas.
Montgomery County Virginia  search
BTUnited States
 .Virginia
 ..Montgomery County Virginia
NTBlacksburg Virginia
SNSW Virginia. Also search Radford Virginia if applicable.
Monti Berici  search
BTEurope
 .Southern Europe
 ..Italy
 ...Veneto Italy
 ....Monti Berici
SNRange of volcanic hills SW of Vicenza in NE Italy.
Monti Caronie  search
USENebrodi Mountains
Monti Lessini  search
USELessini Mountains
Montian  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Paleogene
 ....Paleocene
 .....Montian
SNEurope. Above Danian, below Thanetian.
monticellite  search
BTsilicates
 .orthosilicates
 ..nesosilicates
 ...olivine group
 ....monticellite
Monticello Iowa  search
BTUnited States
 .Iowa
 ..Jones County Iowa
 ...Monticello Iowa
SNCity on Maquoketa River in E Iowa.
Monticello Kentucky  search
BTUnited States
 .Kentucky
 ..Wayne County Kentucky
 ...Monticello Kentucky
SNTown in S Kentucky.
Monticello Minnesota  search
BTUnited States
 .Minnesota
 ..Wright County Minnesota
 ...Monticello Minnesota
SNVillage on Mississippi River in S central Minnesota.
Monticello New York  search
BTUnited States
 .New York
 ..Sullivan County New York
 ...Monticello New York
SNResort village in SE New York.
Monticello Reservoir  search
BTUnited States
 .Monticello Reservoir
RTSouth Carolina
 Utah
 San Juan County Utah
 Fairfield County South Carolina
SNLocated 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  search
BTUnited States
 .Utah
 ..San Juan County Utah
 ...Monticello Utah
SNTown in SE Utah.
Monticello Wisconsin  search
BTUnited States
 .Wisconsin
 ..Green County Wisconsin
 ...Monticello Wisconsin
SNVillage in S Wisconsin.
Montmagny County Quebec  search
BTCanada
 .Eastern Canada
 ..Quebec
 ...Montmagny County Quebec
Montmorency County Michigan  search
BTUnited States
 .Michigan
 ..Michigan Lower Peninsula
 ...Montmorency County Michigan
Montmorency No. 1 County Quebec  search
BTCanada
 .Eastern Canada
 ..Quebec
 ...Montmorency No. 1 County Quebec
Montmorency No. 2 County Quebec  search
BTCanada
 .Eastern Canada
 ..Quebec
 ...Montmorency No. 2 County Quebec
montmorillonite  search
BTsilicates
 .sheet silicates
 ..clay minerals
 ...montmorillonite
UFNa-montmorillonite
RTbeidellite
 K-bentonite
 smectite
 nontronite
Montour County Pennsylvania  search
BTUnited States
 .Pennsylvania
 ..Montour County Pennsylvania
Montoya Group  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Ordovician
 ....Montoya Group
RTNew Mexico
 Texas
 Arizona
SNMiddle 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  search
BTrault France
 .Montpellier France
SNCity in E Herault, S France.
Montreal and Jesus Islands County Quebec  search
BTCanada
 .Eastern Canada
 ..Quebec
 ...Montreal and Jesus Islands County Quebec
NTMontreal Quebec
Montreal Quebec  search
BTCanada
 .Eastern Canada
 ..Quebec
 ...Montreal and Jesus Islands County Quebec
 ....Montreal Quebec
SNCity on Montreal Island in the Saint Lawrence River in S Quebec.
Montrose County Colorado  search
BTUnited States
 .Colorado
 ..Montrose County Colorado
SNW Colorado.
Monts des Maures  search
USEMaures Massif
Monts Dome  search
SNAs of 1981, use Chaine des Puys.
Monts du Lyonnais  search
BTEurope
 .Western Europe
 ..France
 ...Monts du Lyonnais
RTLoire France
 Rhone France
SNIndexed with departments as applicable.
Montsech  search
BTEurope
 .Southern Europe
 ..Iberian Peninsula
 ...Spain
 ....Catalonia Spain
 .....Lerida Spain
 ......Montsech
SNFoothills of the Pyrenees.
Montserrat  search
RTBarcelona Spain
 Leeward Islands
 Lesser Antilles
 Soufriere
SNVolcanic 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  search
BTigneous rocks
 .plutonic rocks
 ..diorites
 ...monzodiorite
RTjotunite
monzogranite  search
BTigneous rocks
 .plutonic rocks
 ..granites
 ...monzogranite
RTmonzonites
monzonites  search
BTigneous rocks
 .plutonic rocks
 ..syenites
 ...monzonites
RTmonzogranite
Moody County South Dakota  search
BTUnited States
 .South Dakota
 ..Moody County South Dakota
Moodys Branch Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Paleogene
 ....Eocene
 .....upper Eocene
 ......Moodys Branch Formation
UFMoodys Marl
RTLouisiana
 Mississippi
 Alabama
 Georgia
 Jackson Group
SNIn Jackson Group. Added to Thesaurus in 1985.
Moodys Marl  search
USEMoodys Branch Formation
Moon  search
NTAristarchus
 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
RTaccretion
 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  search
SNA valid term through mid-1978. Use lunar samples.
moonquakes  search
RTearthquakes
 Moon
moonstone  search
BTsilicates
 .framework silicates
 ..feldspar group
 ...alkali feldspar
 ....moonstone
RTgems
 peristerite
Moore County Meteorite  search
BTmeteorites
 .stony meteorites
 ..achondrites
 ...eucrite
 ....Moore County Meteorite
RTNorth Carolina
 Moore County North Carolina
SNBefore 1981, also search Moore County AND meteorites. Added to Thesaurus in 1981.
Moore County North Carolina  search
BTUnited States
 .North Carolina
 ..Moore County North Carolina
RTMoore County Meteorite
SNCentral North Carolina.
Moore County Tennessee  search
BTUnited States
 .Tennessee
 ..Moore County Tennessee
SNS Tennessee.
Moore County Texas  search
BTUnited States
 .Texas
 ..Moore County Texas
SNExtreme N Texas.
Mooreville Chalk  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Mesozoic
 ...Cretaceous
 ....Upper Cretaceous
 .....Mooreville Chalk
RTMississippi
 Alabama
 Selma Group
SNIn Selma Group. W Alabama and NE Mississippi. Added to Thesaurus in 1989.
Moorman Syncline  search
BTUnited States
 .Kentucky
 ..Moorman Syncline
SNCentral and W Kentucky. Added to Thesaurus in 1985.
Moose River basin  search
BTCanada
 .Eastern Canada
 ..Ontario
 ...Moose River basin
SNSW of lower James Bay.
Moosebar Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Mesozoic
 ...Cretaceous
 ....Lower Cretaceous
 .....Moosebar Formation
RTAlberta
 British Columbia
SNAlberta and NE British Columbia. Added to Thesaurus in 1989.
Mor  search
BTsoils
 .Mor
UFraw humus
RThumus
 Mull
Mora County New Mexico  search
BTUnited States
 .New Mexico
 ..Mora County New Mexico
SNNE New Mexico.
morainal plains  search
USEoutwash plains
moraines  search
RTdrift
 drumlins
 glacial features
 glacial geology
 glaciers
 outwash plains
 periglacial features
 till
Morava  search
USEMoravia
Morava River valley  search
BTEurope
 .Morava River valley
RTSerbia
 Austria
 Slovakia
 Czech Republic
 Moravia
 Western Morava River
SNRiver 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  search
BTEurope
 .Central Europe
 ..Czech Republic
 ...Moravia
NTBrno Czech Republic
 Karvina Czech Republic
 Moravian Karst
 Nizky Jezenik Mountains
 Ostrava Czech Republic
 Ostrava-Karvina
 Stramberk Czech Republic
 Svratka Dome
UFMorava
RTMorava River valley
 Pannonian Basin
 Vienna Basin
 Sudeten
 Sudeten Mountains
 Sudetic Basin
 Oder Valley
 Silesia
 Tieschitz Meteorite
 Slovakian Pannonian Basin
SNRegion between Bohemia and Slovakia.
Moravian Karst  search
BTEurope
 .Central Europe
 ..Czech Republic
 ...Moravia
 ....Moravian Karst
Moravska Ostrava  search
USEOstrava Czech Republic
Moray Firth  search
BTEurope
 .Western Europe
 ..United Kingdom
 ...Great Britain
 ....Scotland
 .....Moray Firth
RTGrampian region Scotland
 North Sea
 Grampian Highlands
 Great Glen Fault
SNInlet of the North Sea bordered by Grampian and Highland regions in NE Scotland. Added to Thesaurus in 1989.
MORB  search
USEmid-ocean ridge basalts
Morbihan France  search
BTEurope
 .Western Europe
 ..France
 ...Morbihan France
NTGroix Island
RTBrittany
 Vilaine Bay
SNDepartment in NW France.
mordenite  search
BTsilicates
 .framework silicates
 ..zeolite group
 ...mordenite
UFarduinite
 ashtonite
 flokite
 ptilolite
RTaluminosilicates
Morecambe Bay  search
BTEurope
 .Western Europe
 ..United Kingdom
 ...Great Britain
 ....England
 .....Morecambe Bay
RTCumbria England
 Irish Sea
 Lancashire England
 Westmorland England
SNInlet of the Irish Sea in NW England.
Morehouse Parish Louisiana  search
BTUnited States
 .Louisiana
 ..Morehouse Parish Louisiana
morencite  search
USEnontronite
Moreno Forma  search
Moreno Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Mesozoic
 ...Cretaceous
 ....Upper Cretaceous
 .....Moreno Formation
RTPaleocene
 California
 Marca Shale Member
SNIn 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  search
BTorganic compounds
 .hydrocarbons
 ..aromatic hydrocarbons
 ...hopanoids
 ....hopanes
 .....moretanes
RTbiomarkers
SN17#2B, 21#2A(H) hopanes. This term has multiple hierarchies.
Moreton Australia  search
BTAustralasia
 .Australia
 ..Queensland Australia
 ...Moreton Australia
RTCape York Peninsula
SNVillage on Cape York Peninsula in N Queensland.
Moreton Bay  search
BTAustralasia
 .Australia
 ..Queensland Australia
 ...Moreton Bay
SNIn SE Queensland just N of Brisbane.
Moreton-Clarence Basin  search
USEClarence-Moreton Basin
Morez France  search
BTEurope
 .Western Europe
 ..France
 ...Jura France
 ....Morez France
SNTown in in SE Jura, E France.
Morgan County Alabama  search
BTUnited States
 .Alabama
 ..Morgan County Alabama
SNN Alabama.
Morgan County Colorado  search
BTUnited States
 .Colorado
 ..Morgan County Colorado
SNNE Colorado.
Morgan County Georgia  search
BTUnited States
 .Georgia
 ..Morgan County Georgia
SNN central Georgia.
Morgan County Illinois  search
BTUnited States
 .Illinois
 ..Morgan County Illinois
SNW central Illinois.
Morgan County Indiana  search
BTIndiana
 .Morgan County Indiana
SNCentral Indiana.
Morgan County Kentucky  search
BTUnited States
 .Kentucky
 ..Morgan County Kentucky
SNE Kentucky.
Morgan County Missouri  search
BTUnited States
 .Missouri
 ..Morgan County Missouri
NTVersailles Missouri
SNCentral Missouri.
Morgan County Ohio  search
BTUnited States
 .Ohio
 ..Morgan County Ohio
SNE central Ohio.
Morgan County Tennessee  search
BTUnited States
 .Tennessee
 ..Morgan County Tennessee
SNNE central Tennessee.
Morgan County Utah  search
BTUnited States
 .Utah
 ..Morgan County Utah
SNN Utah.
Morgan County West Virginia  search
BTUnited States
 .West Virginia
 ..Morgan County West Virginia
SNE West Virginia.
Morgan Hill earthquake 1984  search
BTearthquakes
 .Morgan Hill earthquake 1984
RTCalifornia
 Santa Clara County California
SNEpicenter at Morgan Hill, Santa Clara County, Central California. Added to Thesaurus in 1989.
Morien Group  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Carboniferous
 ....Pennsylvanian
 .....Morien Group
RTNova Scotia
 Cape Breton Island
SNCape Breton Island. Added to Thesaurus in 1989.
Morin Complex  search
BTCanada
 .Eastern Canada
 ..Quebec
 ...Morin Complex
Morlaix France  search
BTEurope
 .Western Europe
 ..France
 ...Finistere France
 ....Morlaix France
SNTown on inlet of English Channel.
Mormoiron France  search
BTEurope
 .Western Europe
 ..France
 ...Vaucluse France
 ....Mormoiron France
SNVillage in SE France.
Mormon Mountains  search
BTUnited States
 .Nevada
 ..Mormon Mountains
SNSE Nevada.
Moroccan Atlas Mountains  search
BTAfrica
 .North Africa
 ..Morocco
 ...Moroccan Atlas Mountains
BTAfrica
 .North Africa
 ..Atlas Mountains
 ...Moroccan Atlas Mountains
NTAnti-Atlas
 High Atlas
 Middle Atlas
SNAtlas Mountains in Morocco. This term has multiple hierarchies. Added to Thesaurus in 1981.
Morocco  search
BTAfrica
 .North Africa
 ..Morocco
NTBou Azzer
 Cape Bojador
 Casablanca Morocco
 Moroccan Atlas Mountains
 Moulouya River
 Rabat Morocco
 Rehamna
 Rif
 Tafilalt
 Tangier Morocco
 Taourirt Morocco
 Tarfaya Morocco
 Taza Morocco
UFSpanish Morocco
RTSahara
 Mediterranean region
 Atlas Mountains
 Maghreb
 Ceuta
 Western Sahara
 Melilla
 Meseta
SNBefore 1960, Spanish Morocco was also used.
Moroe County West Virginia  search
BTUnited States
 .West Virginia
 ..Moroe County West Virginia
Moroto Mountain  search
BTAfrica
 .East Africa
 ..Uganda
 ...Moroto Mountain
SNJust E of town of Moroto near Kenya border.
morphodynamics  search
SNAs of 1998, not a valid term for GeoRef. Use landform evolution.
morphology  search
NTfunctional morphology
RTaggregate
 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  search
RTlandform description
 geomorphology
 quantitative geomorphology
SNUsed as a general term.
morphostructures  search
RTbasins
 domes
 geomorphology
 trenches
Morrill County Nebraska  search
BTUnited States
 .Nebraska
 ..Morrill County Nebraska
Morris County Kansas  search
BTUnited States
 .Kansas
 ..Morris County Kansas
SNE central Kansas.
Morris County New Jersey  search
BTUnited States
 .New Jersey
 ..Morris County New Jersey
NTPicatinny Arsenal
RTNew Jersey Highlands
 Long Valley
SNN New Jersey.
Morris County Texas  search
BTUnited States
 .Texas
 ..Morris County Texas
SNNE Texas.
Morrison County Minnesota  search
BTUnited States
 .Minnesota
 ..Morrison County Minnesota
Morrison Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Mesozoic
 ...Jurassic
 ....Upper Jurassic
 .....Morrison Formation
RTNew Mexico
 Utah
 Wyoming
 Montana
 Oklahoma
 Colorado
 Kansas
 Arizona
 South Dakota
 Brushy Basin Shale Member
 Salt Wash Sandstone Member
 Westwater Canyon Sandstone Member
SNIn Plata Mountains of Colorado, comprises (ascending) Pony Express Limestone, Bilk Creek Sandstone, Wanakah Marl (restricted), and Junction Creek Sandstone.
Morrow County Ohio  search
BTUnited States
 .Ohio
 ..Morrow County Ohio
SNCentral Ohio.
Morrow County Oregon  search
BTUnited States
 .Oregon
 ..Morrow County Oregon
SNN Oregon.
Morrow Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Carboniferous
 ....Pennsylvanian
 .....Morrow Formation
RTOklahoma
 Arkansas
 Morrowan
SNComposed of shales with some thin limestones and occasional sandstones. SE Arkansas, and central E and NE Oklahoma.
Morrow Series  search
USEMorrowan
Morrowan  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Carboniferous
 ....Pennsylvanian
 .....Lower Pennsylvanian
 ......Morrowan
NTBloyd Formation
UFMorrow Series
 Morrowan Series
RTChesterian
 Watahomigi Formation
 Springer Formation
 Morrow Formation
SNProvincial series, North America. Above Chesterian (Mississippian), below Atokan.
Morrowan Series  search
USEMorrowan
Mortagne France  search
BTEurope
 .Western Europe
 ..France
 ...Orne France
 ....Mortagne France
UFMortagne-au-Perchey France
SNTown in SE Orne, NW France.
Mortagne-au-Perchey France  search
USEMortagne France
Morton County Kansas  search
BTUnited States
 .Kansas
 ..Morton County Kansas
SNExtreme SW Kansas.
Morton County North Dakota  search
BTUnited States
 .North Dakota
 ..Morton County North Dakota
SNCentral North Dakota.
Morvan  search
BTEurope
 .Western Europe
 ..France
 ...Central Massif
 ....Morvan
UFMorvan Massif
 Morvan Mountains
RTSaone-et-Loire France
 Yonne France
 Cote-d'Or France
 Nievre France
SNNorthernmost spur of the Central Massif. Indexed with departments as applicable.
Morvan Massif  search
USEMorvan
Morvan Mountains  search
USEMorvan
Mosabani Mine  search
USEMosaboni Mines
Mosaboni Mines  search
BTAsia
 .Indian Peninsula
 ..India
 ...Bihar India
 ....Mosaboni Mines
UFMosabani Mine
 Musabani copper mines
 Mushabani copper mines
RTmines
 copper ores
SNSE Bihar, India. Also search Mosaboni.
mosaics  search
UFphotomosaics
RTaerial photography
 photogeology
 photogrammetry
 photography
 remote sensing
 space photography
 multispectral scanner
 SAR
 thematic mapper
 imagery
 multispectral analysis
 photogeologic maps
SNAdded to Thesaurus in 1982.
Mosasauridae  search
BTChordata
 .Vertebrata
 ..Tetrapoda
 ...Reptilia
 ....Diapsida
 .....Lepidosauria
 ......Squamata
 .......Lacertilia
 ........Mosasauridae
SNFamily. Also search Mosasaurus.
Mosbas  search
USEMoscow Basin
Moscovian  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Carboniferous
 ....Pennsylvanian
 .....Moscovian
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Carboniferous
 ....Upper Carboniferous
 .....Moscovian
SNRussia.
moscovite  search
USEmuscovite
Moscow Basin  search
BTCommonwealth of Independent States
 .Russian Federation
 ..Moscow Basin
BTEurope
 .Moscow Basin
UFMosbas
 Moscow coal basin
RTcoal fields
SNLignite 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  search
USEMoscow Basin
Moscow Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Devonian
 ....Middle Devonian
 .....Moscow Formation
RTPennsylvania
 New York
 Hamilton Group
SNIn Hamilton Group. W and central New York and Pennsylvania. Added to Thesaurus in 1989.
Moscow River  search
USEMoskva River
Moscow Russian Federation  search
BTCommonwealth of Independent States
 .Russian Federation
 ..Moscow Russian Federation
BTEurope
 .Moscow Russian Federation
UFMoskva Russian Federation
SNOblast and city in W central Russian Federation. Before 1993, Moscow Russian Republic was also used. This term has multiple hierarchies.
Moscow State University  search
USEMoscow University
Moscow Syneclise  search
BTCommonwealth of Independent States
 .Russian Federation
 ..Moscow Syneclise
BTEurope
 .Moscow Syneclise
RTMoscow-Pechora Syneclise
SNSE European Russian Federation. This term has multiple hierarchies.
Moscow University  search
UFMoscow State University
RTRussian Federation
 academic institutions
SNIn Moscow.
Moscow-Pechora Syneclise  search
BTCommonwealth of Independent States
 .Moscow-Pechora Syneclise
BTRussian Platform
 .Moscow-Pechora Syneclise
RTRussian Federation
 Europe
 Pechora Basin
 Pechora River
 Moscow Syneclise
SNThis term has multiple hierarchies. Indexed with countries and Europe if applicable. Added to Thesaurus in 1981.
Mosel Valley  search
USEMoselle Valley
Moselle France  search
BTEurope
 .Western Europe
 ..France
 ...Moselle France
RTLorraine
 Saar Basin
SNDepartment in NE France.
Moselle River  search
BTEurope
 .Moselle River
RTFrance
 Germany
 Luxembourg
SNRises in NE France and flows N and NE entering the Rhine River at Koblenz. Indexed with countries as applicable.
Moselle Valley  search
BTEurope
 .Moselle Valley
UFMosel Valley
RTFrance
 Germany
 Luxembourg
SNRiver valley. Indexed with countries as applicable.
Moskva River  search
BTCommonwealth of Independent States
 .Russian Federation
 ..Moskva River
BTAsia
 .Moskva River
UFMoscow River
SNFlows through Moscow and then SE into the Oka River. This term has multiple hierarchies.
Moskva Russian Federation  search
USEMoscow Russian Federation
Mosquito Range  search
RTColorado
 U. S. Rocky Mountains
SNS part of Park Range near Leadville. Indexed with U. S. Rocky Mountains and Colorado counties or regions as applicable.
Mossamedes  search
BTAfrica
 .Central Africa
 ..Angola
 ...Mossamedes
UFMocamedes
RTNamibe Angola
SNDesert 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  search
SNA valid index term through 1977. After 1977, use Mossbauer spectroscopy or Mossbauer spectra.
Mossbauer analysis  search
USEMossbauer spectroscopy
Mossbauer effect  search
SNNot a valid GeoRef index term after 1971. Used in subfile G. Now use Mossbauer spectra or Mossbauer spectroscopy.
Mossbauer spectra  search
BTspectra
 .Mossbauer spectra
RTspectroscopy
 Mossbauer spectroscopy
SNBefore 1978, also search Mossbauer.
Mossbauer spectroscopy  search
BTspectroscopy
 .Mossbauer spectroscopy
UFMossbauer analysis
RTchemical analysis
 analysis
 Mossbauer spectra
SNBefore 1978, also search Mossbauer AND spectroscopy.
Motagua Fault  search
BTCentral America
 .Guatemala
 ..Motagua Fault
SNSE Guatemala. Added to Thesaurus in 1981.
motion, ground  search
USEground motion
motion, plasma  search
SNNot a valid term for GeoRef. Usually out-of-scope. Used as plasma motion with magnetosphere.
motion, strong  search
USEstrong motion
motions  search
RTacceleration
 angular momentum
 Chandler wobble
 Earth
 eccentricity
 Milankovitch theory
 Moon
 nutation
 obliquity of the ecliptic
 orbits
 oscillations
 precession
 rotation
Motley County Texas  search
BTUnited States
 .Texas
 ..Motley County Texas
Motojuku Formation  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Neogene
 ....Miocene
 .....Motojuku Formation
RTHonshu
 Japan
Moty Formation  search
RTLower Cambrian
 Russian Federation
 Siberia
SNSiberia. ?Lower Cambrian. Indexed with age or ages as applicable. Added to Thesaurus in 1989.
Moulouya River  search
BTAfrica
 .North Africa
 ..Morocco
 ...Moulouya River
UFMoluya River
 Mulwiya River
SNRises in central part of country and flows NE into Mediterranean Sea. Before 1978, also search Moluya, Mulwiya, or Moulouya.
Moultrie County Illinois  search
BTUnited States
 .Illinois
 ..Moultrie County Illinois
mounds  search
RTbedding plane irregularities
 Isoptera
 mud mounds
 nests
 sedimentary structures
 termite mounds
SNAlso index bedding plane irregularities as applicable.
mounds, algal  search
USEalgal mounds
Mount Adams  search
BTUnited States
 .Mount Adams
RTWashington
 New Hampshire
 Cascade Range
 Coos County New Hampshire
 White Mountains
 Yakima County Washington
SNMountain 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  search
USEMount Agung
Mount Agung  search
BTAsia
 .Far East
 ..Indonesia
 ...Bali
 ....Mount Agung
UFAgung, Mount
 Mount Agoeng
RTvolcanoes
SNHighest volcanic peak on Bali. This term has multiple hierarchies.
Mount Amiata  search
USEMonte Amiata
Mount Antero  search
BTUnited States
 .Colorado
 ..Chaffee County Colorado
 ...Mount Antero
BTUnited States
 .U. S. Rocky Mountains
 ..Sawatch Range
 ...Mount Antero
SNPeak in Sawatch Range, central Colorado. This term has multiple hierarchies. Added to Thesaurus in 1985.
Mount Asama  search
USEAsama
Mount Baker  search
RTCascade Range
 Uganda
 Washington
 Whatcom County Washington
SNPeak 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  search
USEBorah Peak
Mount Borah earthquake, 1983  search
USEBorah Peak earthquake 1983
Mount Cameroon  search
BTAfrica
 .West Africa
 ..Cameroon
 ...Mount Cameroon
UFCameroon Mountain
RTvolcanoes
SNMountain. SW Cameroon. Added to Thesaurus in 1989.
Mount Carmel  search
BTAsia
 .Middle East
 ..Israel
 ...Mount Carmel
RTGeula Caves
SNMountain in N near Mediterranean coast.
Mount Egmont  search
BTAustralasia
 .New Zealand
 ..Taranaki New Zealand
 ...Mount Egmont
UFEgmont, Mount
 Mount Taranaki
 Taranaki, Mount
RTvolcanoes
SNLarge stratovolcano, W North Island, New Zealand. Indexed with North Island.
Mount Elbrus  search
USEElbrus
Mount Erebus  search
RTAlberta
 Antarctica
 Canadian Rocky Mountains
 Jasper National Park
 Ross Island
 volcanoes
SNMountain 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  search
BTEurope
 .Southern Europe
 ..Italy
 ...Sicily Italy
 ....Mount Etna
UFEtna
RTvolcanoes
SNActive volcano in NE Sicily.
Mount Everest  search
BTmalayas
 .Mount Everest
UFChomolungma
 Qomolangma Feng
RTChina
 Xizang China
 Nepal
SNOn China-Nepal border. Indexed with Nepal and/or Xizang China as applicable. Added to Thesaurus in 1985.
Mount Fuji  search
USEFujiyama
Mount Girnar  search
BTAsia
 .Indian Peninsula
 ..India
 ...Gujarat India
 ....Mount Girnar
RTKathiawar
SNS central Kathiawar Peninsula.
Mount Hakone  search
BTnshu
 .Mount Hakone
UFHakone Volcano
RTvolcanoes
 Hakone
SNExtinct volcano in central Honshu. Before 1993, also search Hakone.
Mount Hood  search
BTUnited States
 .Oregon
 ..Mount Hood
BTUnited States
 .Cascade Range
 ..Mount Hood
RTClackamas County Oregon
 Hood River County Oregon
SNPeak in Cascade Range in Clackamas and Hood River counties. This term has multiple hierarchies.
Mount Isa Australia  search
BTAustralasia
 .Australia
 ..Queensland Australia
 ...Mount Isa Australia
SNTown and mining center in W Queensland, Australia.
Mount Isa Inlier  search
BTAustralasia
 .Australia
 ..Queensland Australia
 ...Mount Isa Inlier
SNProterozoic, NW Queensland.
Mount Jefferson  search
RTCascade 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
SNOn 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  search
BTUnited States
 .Maine
 ..Piscataquis County Maine
 ...Mount Katahdin
SNN terminus of the Appalachian Trail in N central Maine. Indexed with mountain range as applicable. Added to Thesaurus in 1989.
Mount Kenya  search
BTAfrica
 .East Africa
 ..Kenya
 ...Mount Kenya
RTvolcanoes
SNExtinct volcano in central Kenya.
Mount Lassen  search
USELassen Peak
Mount Lofty Ranges  search
BTAustralasia
 .Australia
 ..South Australia
 ...Mount Lofty Ranges
SNSE South Australia.
Mount Lyell  search
RTCalifornia
 Sierra Nevada
 Tasmania Australia
SNSite 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  search
BTUnited States
 .Oregon
 ..Klamath County Oregon
 ...Mount Mazama
RTvolcanoes
 Crater Lake
 Mazama Ash
SNPrehistoric volcano in S Oregon. Caldera now occupied by Crater Lake. Added to Thesaurus in 1985.
Mount McKinley National Park  search
USEDenali National Park
Mount Meager  search
BTCanada
 .Western Canada
 ..British Columbia
 ...Mount Meager
UFMeager, Mount
RTvolcanoes
SNSW British Columbia near the Garibaldi volcanic belt.
Mount Melbourne  search
BTAntarctica
 .Victoria Land
 ..Mount Melbourne
UFMelbourne, Mount
RTvolcanoes
SNCoast of Victoria Land near Terra Nova Bay.
Mount Mihara  search
BTnshu
 .Izu-shichito
 ..Izu-Oshima
 ...Mount Mihara
UFMihara (Mount)
 Mihara Volcano
 Mihara-Yama
RTvolcanoes
 O-shima
SNUse 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  search
RTGlacier National Park
 Montana
 Queensland Australia
SNMining 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  search
BTAsia
 .Himalayas
 ..Mount Namjagbarwa
BTAsia
 .Far East
 ..China
 ...Xizang China
 ....Mount Namjagbarwa
UFNamjagbarwa, Mount
SNHimalayas of Xizang, SW China. This term has multiple hierarchies. Added to Thesaurus in 1989.
Mount Olympus  search
USEOlympus
Mount Ontake  search
USEOntake
Mount Pelee  search
BTCaribbean region
 .West Indies
 ..Antilles
 ...Lesser Antilles
 ....Martinique
 .....Mount Pelee
UFMont Pelee
RTvolcanoes
SNVolcano. N Martinique. Added to Thesaurus in 1989.
Mount Pinatubo  search
BTAsia
 .Far East
 ..Philippine Islands
 ...Luzon
 ....Mount Pinatubo
UFPinatubo
RTvolcanoes
SNVolcano on SE Luzon, NE Philippine Islands. Recent plinian-type eruption. Added to Thesaurus in 1995.
Mount Rainier  search
BTUnited States
 .Cascade Range
 ..Mount Rainier
BTUnited States
 .Washington
 ..Pierce County Washington
 ...Mount Rainier
RTvolcanoes
 Nisqually Glacier
SNVolcanic peak of Cascade Range in Mount Rainier National Park in W central Washington. This term has multiple hierarchies.
Mount Rainier National Park  search
BTUnited States
 .Washington
 ..Mount Rainier National Park
RTnational parks
 Lewis County Washington
 Pierce County Washington
SNW central part of state. Mt. Rainier occupies one fourth of park area in W central Washington.
Mount Read Volcanics  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Cambrian
 ....Mount Read Volcanics
RTTasmania Australia
SNCambrian. W Tasmania. Added to Thesaurus in 1993.
Mount Redoubt  search
USERedoubt
Mount Saint Helens  search
BTUnited States
 .Cascade Range
 ..Mount Saint Helens
BTUnited States
 .Washington
 ..Skamania County Washington
 ...Mount Saint Helens
RTvolcanoes
SNPeak in NW Skamania County in S Washington. This term has multiple hierarchies.
Mount Scopus Gr  search
Mount Scopus Group  search
RTEocene
 Ghareb Formation
 Israel
 Jordan
 K-T boundary
 Paleocene
 Syria
 Upper Cretaceous
SNSenonian to Eocene. Indexed with ages as applicable. Added to Thesaurus in 1989.
Mount Shasta  search
BTUnited States
 .California
 ..Siskiyou County California
 ...Mount Shasta
BTUnited States
 .Cascade Range
 ..Mount Shasta
SNCascade Range, N California. This term has multiple hierarchies. Added to Thesaurus in 1985.
Mount Shields Formation  search
BTChronostratigraphic Units
 .Precambrian
 ..Proterozoic
 ...Mesoproterozoic
 ....Mount Shields Formation
RTIdaho
 Montana
 Belt Supergroup
 Missoula Group
SNIn Missoula Group of Belt Supergroup. Added to Thesaurus in 1989.
Mount Simon Sandstone  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Paleozoic
 ...Cambrian
 ....Upper Cambrian
 .....Mount Simon Sandstone
RTIowa
 Illinois
 Indiana
 Ohio
 Wisconsin
 Minnesota
 Michigan
SNUnconformably overlies Precambrian basement; underlies Eau Claire Formation. Added to Thesaurus in 1989.
Mount Spurr  search
BTUnited States
 .Alaska
 ..Southern Alaska
 ...Mount Spurr
UFSpurr, Mount
RTvolcanoes
SNN Aleutian Range.
Mount Taranaki  search
USEMount Egmont
Mount Wood  search
BTCanada
 .Western Canada
 ..Yukon Territory
 ...Mount Wood
RTSaint Elias Mountains
SNPeak of Saint Elias Mountains in SW Yukon Territory.
mountain building  search
SNA valid term through 1973. After 1973, use orogeny.
mountain crystal  search
USEquartz crystal
mountains  search
RTalpine environment
 highlands
 hills
 landform description
 landforms
 mesas
 geomorphology
Mountrail County North Dakota  search
BTUnited States
 .North Dakota
 ..Mountrail County North Dakota
Mousterian  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Cenozoic
 ...Stone Age
 ....Paleolithic
 .....Mousterian
RTPleistocene
 archaeology
 Quaternary
SNArchaeological classification.
Mouthoumet Massif  search
BTEurope
 .Western Europe
 ..France
 ...Aude France
 ....Mouthoumet Massif
SNS France. Also search Mouthoumet.
Mouydir  search
BTAfrica
 .North Africa
 ..Algeria
 ...Mouydir
SNMountains in S central Algeria.
movement  search
UFmovements
RTplate tectonics
 soils
 ground water
 circulation
 magma transport
 transport
 preferential flow
 water regimes
 ice movement
SNAs of 1995, not to be used for pollution. Use pollutants AND transport.
movements  search
USEmovement
movements, mass  search
USEmass movements
movements, vertical  search
USEvertical movements
moveout  search
UFmoveouts
RTreflection methods
 elastic waves
 seismic methods
 arrival time
 dip moveout
 normal moveout
 common-depth-point method
 traveltime
SNAdded to Thesaurus in 1989.
moveouts  search
USEmoveout
Mower County Minnesota  search
BTUnited States
 .Minnesota
 ..Mower County Minnesota
Mowry Shale  search
BTChronostratigraphic Units
 .Phanerozoic
 ..Mesozoic
 ...Cretaceous
 ....Lower Cretaceous
 .....Mowry Shale
RTUpper Cretaceous
 Wyoming
 Montana
 South Dakota
 Colorado Group
SNIn 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  search
BTUnited States
 .Moxa Arch
RTUtah
 Wyoming
 Box Elder County Utah
 Dakota Formation
 Sweetwater County Wyoming
 Green River basin
 Lincoln County Wyoming
 Sublette County Wyoming
 Uinta County Wyoming
SNNS 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  search
BTAfrica
 .East Africa
 ..Mozambique
NTMaputo Mozambique
 Tete Mozambique
 Zambezia Mozambique
UFPortuguese East Africa
RTZambezi Valley
 Limpopo Orogeny
 Ecca Group
 Limpopo Basin
 Limpopo Belt
 East African Rift
 Lake Malawi
 Mozambique Belt
 Lebombo Mountains
SNBefore 1969, Portuguese East Africa was used.
Mozambique Belt  search
BTAfrica
 .Mozambique Belt
RTEthiopia
 Kenya
 Malawi
 Mozambique
 Tanzania
SNOrogenic belt. Mountains in N extend to the rim of the Great Rift Valley in E Africa. Indexed with countries as applicable.
Mozambique Channel  search
BTIndian Ocean
 .Mozambique Channel
RTDSDP Site 242
 DSDP Site 243
 DSDP Site 244
SNStrait between Madagascar and Mozambique.