SEDIS - Thesaurus
La  | |
|---|---|
| USE | lanthanum |
| La Brea tar pits | |
|---|---|
| USE | Rancho La Brea |
| La Caridad Spain | |
|---|---|
| BT | Europe |
| .Southern Europe | |
| ..Iberian Peninsula | |
| ...Spain | |
| ....Asturias Spain | |
| .....La Caridad Spain | |
| SN | Settlement in NW central Spain. |
| La Coruna City Spain | |
|---|---|
| BT | Europe |
| .Southern Europe | |
| ..Iberian Peninsula | |
| ...Spain | |
| ....Galicia Spain | |
| .....La Coruna Spain | |
| ......La Coruna City Spain | |
| SN | Refers to only the city in extreme NW Spain on the Atlantic Ocean. Before 1993, also search La Coruna Spain. |
| La Coruna Spain | |
|---|---|
| BT | Europe |
| .Southern Europe | |
| ..Iberian Peninsula | |
| ...Spain | |
| ....Galicia Spain | |
| .....La Coruna Spain | |
| NT | Cabo Ortegal |
| La Coruna City Spain | |
| Santiago de Compostela Spain | |
| RT | Arosa Bay |
| SN | Refers only to the province in extreme NW Spain. From 1981-1992, also search La Coruna Province and Spain. For the city, see La Coruna City Spain. |
| La Crosse County Wisconsin | |
|---|---|
| BT | United States |
| .Wisconsin | |
| ..La Crosse County Wisconsin | |
| La Grande Soufriere | |
|---|---|
| BT | Caribbean region |
| .West Indies | |
| ..Antilles | |
| ...Lesser Antilles | |
| ....Guadeloupe | |
| .....La Grande Soufriere | |
| RT | volcanoes |
| Leeward Islands | |
| Soufriere | |
| SN | Volcano. Before 1981, also search Soufriere AND Guadeloupe. Indexed with Leeward Islands. Added to Thesaurus in 1981. |
| La Habana Cuba | |
|---|---|
| BT | Caribbean region |
| .West Indies | |
| ..Antilles | |
| ...Greater Antilles | |
| ....Cuba | |
| .....La Habana Cuba | |
| SN | Province in W Cuba. Before 1981, also search Havana Cuba. |
| La Jolla California | |
|---|---|
| BT | United States |
| .California | |
| ..San Diego County California | |
| ...La Jolla California | |
| RT | San Diego California |
| SN | NW section of San Diego in San Diego County. |
| La Ligua | |
|---|---|
| SN | No longer a valid term for GeoRef. See La Ligua River or La Ligua Chile for the town. Also used for a former department of Aconcagua, now Valparaiso Chile. |
| La Ligua Chile | |
|---|---|
| BT | South America |
| .Chile | |
| ..Valparaiso Chile | |
| ...La Ligua Chile | |
| SN | Town in central Chile. In former Aconcagua Province. |
| La Ligua River | |
|---|---|
| BT | South America |
| .Chile | |
| ..Valparaiso Chile | |
| ...La Ligua River | |
| SN | River in central Chile. Added to Thesaurus in 1995. |
| La Luna Formation | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Mesozoic | |
| ...Cretaceous | |
| ....Upper Cretaceous | |
| .....La Luna Formation | |
| RT | Colombia |
| Venezuela | |
| SN | N Colombia, W Venezuela. Divided into Salada, Pujamana and Galembo members. Added to Thesaurus in 1989. |
| La Meseta Formation | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Cenozoic | |
| ...Paleogene | |
| ....Eocene | |
| .....upper Eocene | |
| ......La Meseta Formation | |
| RT | Antarctica |
| Seymour Island | |
| SN | Seymour Island, Antarctica. Added to Thesaurus in 1989. |
| La Palma | |
|---|---|
| RT | Canary Islands |
| SN | NW island, at N28#DG25'N28#DG50' W017#DG45'W018#DG, Canary Islands. May also occur in other locations. Search in combination with Canary Islands. Indexed with Canary Islands if applicable. Added to Thesaurus in 1998. |
| La Pampa Argentina | |
|---|---|
| BT | South America |
| .Argentina | |
| ..La Pampa Argentina | |
| RT | Salado Basin |
| SN | Province in central Argentina. |
| La Paz | |
|---|---|
| SN | No longer a valid term for GeoRef. Also occurs as towns in Argentina and Mexico and as department of El Salvador. |
| La Paz Bolivia | |
|---|---|
| BT | South America |
| .Bolivia | |
| ..La Paz Bolivia | |
| RT | Lake Titicaca |
| SN | Department and city in W Bolivia. |
| La Paz County Arizona | |
|---|---|
| BT | United States |
| .Arizona | |
| ..La Paz County Arizona | |
| RT | Buckskin Mountains |
| Yuma County Arizona | |
| Chocolate Mountains | |
| Date Creek basin | |
| SN | W central Arizona. Formed from N part of Yuma County in 1983. Before 1983, also search Yuma County Arizona. |
| La Plata County Colorado | |
|---|---|
| BT | United States |
| .Colorado | |
| ..La Plata County Colorado | |
| RT | Needle Mountains |
| SN | SW Colorado. |
| La Quinta Formation | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Mesozoic | |
| ...Jurassic | |
| ....La Quinta Formation | |
| RT | Mexico |
| Venezuela | |
| SN | Venezuela and S Mexico. Added to Thesaurus in 1989. |
| La Rioja | |
|---|---|
| SN | Not a valid term for GeoRef. See La Rioja Argentina; La Rioja Spain if applicable. |
| La Rioja Argentina | |
|---|---|
| BT | South America |
| .Argentina | |
| ..La Rioja Argentina | |
| NT | Paganzo Argentina |
| RT | Chanares Formation |
| Guandacol Formation | |
| Pampean Mountains | |
| Paganzo Basin | |
| Salado Basin | |
| SN | Province in NW Argentina. |
| La Rioja Spain | |
|---|---|
| BT | Europe |
| .Southern Europe | |
| ..Iberian Peninsula | |
| ...Spain | |
| ....La Rioja Spain | |
| NT | Logrono City Spain |
| RT | Castile Spain |
| Old Castile Spain | |
| Sierra de la Demanda | |
| SN | Autonomous community and province of N central Spain. Formerly Logrono province. From 1981-1992, also search Logrono Province and Spain. Before 1998, also search Logrono Spain. For the city, see Logrono City Spain. Added to Thesaurus in 1998. |
| La Ronge Belt | |
|---|---|
| USE | La Ronge Domain |
| La Ronge Doma |
|---|
| La Ronge Domain | |
|---|---|
| BT | Canada |
| .Western Canada | |
| ..Saskatchewan | |
| ...La Ronge Domain | |
| UF | La Ronge Belt |
| RT | gold ores |
| SN | N central Saskatchewan. Gold ores. Added to Thesaurus in 1989. |
| La Ronge Saskatchewan | |
|---|---|
| BT | Canada |
| .Western Canada | |
| ..Saskatchewan | |
| ...La Ronge Saskatchewan | |
| RT | Lac La Ronge |
| SN | Village and lake in N central Saskatchewan. |
| La Salle County Illinois | |
|---|---|
| BT | United States |
| .Illinois | |
| ..La Salle County Illinois | |
| SN | N Illinois. |
| La Salle County Texas | |
|---|---|
| BT | United States |
| .Texas | |
| ..La Salle County Texas | |
| SN | S Texas. |
| La Salle Limestone | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Paleozoic | |
| ...Carboniferous | |
| ....Pennsylvanian | |
| .....La Salle Limestone | |
| RT | Illinois |
| SN | Middle and Upper Pennsylvanian. In McLeansboro Group. NE Illinois. |
| La Salle Parish Louisiana | |
|---|---|
| BT | United States |
| .Louisiana | |
| ..La Salle Parish Louisiana | |
| La Ventana Sandstone | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Mesozoic | |
| ...Cretaceous | |
| ....Upper Cretaceous | |
| .....La Ventana Sandstone | |
| RT | New Mexico |
| Mesaverde Group | |
| SN | Of Mesaverde Group. NW New Mexico. |
| Laacher See | |
|---|---|
| BT | Europe |
| .Central Europe | |
| ..Germany | |
| ...Rhineland-Palatinate Germany | |
| ....Laacher See | |
| UF | Lake of Laach |
| SN | Rhineland-Palatinate, W Germany. Added to Thesaurus in 1989. |
| Laba Basin | |
|---|---|
| BT | Commonwealth of Independent States |
| .Russian Federation | |
| ..Krasnodar Russian Federation | |
| ...Laba Basin | |
| SN | River basin in Krasnodar Kray of the Northern Caucasus. Also search Laba. This term has multiple hierarchies. |
| Labelle County Quebec | |
|---|---|
| BT | Canada |
| .Eastern Canada | |
| ..Quebec | |
| ...Labelle County Quebec | |
| Labette County Kansas | |
|---|---|
| BT | United States |
| .Kansas | |
| ..Labette County Kansas | |
| SN | SE Kansas. |
| Labette Shale | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Paleozoic | |
| ...Carboniferous | |
| ....Pennsylvanian | |
| .....Middle Pennsylvanian | |
| ......Desmoinesian | |
| .......Labette Shale | |
| RT | Iowa |
| Missouri | |
| Oklahoma | |
| Kansas | |
| Marmaton Group | |
| SN | In Marmaton Group. |
| laboratory studie |
|---|
| laboratory studies | |
|---|---|
| UF | studies, laboratory |
| RT | engineering geology |
| quality control | |
| environmental geology | |
| experimental studies | |
| models | |
| modern analogs | |
| simulation | |
| Rayleigh number | |
| settling | |
| sandbox models | |
| theoretical studies | |
| physical models | |
| Long Duration Exposure Facility | |
| scale models | |
| SN | General term. From 1981-1997 restricted to engineering studies. Indexed with experimental studies if applicable. |
| Laborcita Formation | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Paleozoic | |
| ...Laborcita Formation | |
| RT | Lower Permian |
| New Mexico | |
| Upper Pennsylvanian | |
| Magdalena Group | |
| SN | In Magdalena Group. S New Mexico. Indexed with ages as applicable. Added to Thesaurus in 1989. |
| Labrador Basin | |
|---|---|
| BT | Atlantic Ocean |
| .North Atlantic | |
| ..Labrador Basin | |
| SN | E of Labrador and S of Greenland. |
| Labrador Current | |
|---|---|
| RT | Davis Strait |
| Labrador | |
| Labrador Sea | |
| Newfoundland Island | |
| North Atlantic | |
| SN | Formed by West Greenland Current and Baffin Island Current at Davis Strait, flows SE along coast of Labrador and Newfoundland, and meets North Atlantic Current at about N42#DG W50#DG. Indexed with oceans such as North Atlantic as applicable. Added to Thes |
| Labrador Sea | |
|---|---|
| BT | Atlantic Ocean |
| .North Atlantic | |
| ..Labrador Sea | |
| RT | Leg 105 |
| ODP Site 646 | |
| ODP Site 647 | |
| Hudson Strait | |
| Labrador Current | |
| Leg 12 | |
| DSDP Site 112 | |
| DSDP Site 113 | |
| SN | Between Labrador and SW Greenland. |
| Labrador Trough | |
|---|---|
| BT | Canada |
| .Labrador Trough | |
| RT | Quebec |
| Labrador | |
| SN | In Quebec and Labrador. Added to Thesaurus in 1981. |
| labradorite | |
|---|---|
| BT | silicates |
| .framework silicates | |
| ..feldspar group | |
| ...plagioclase | |
| ....labradorite | |
| RT | igneous rocks |
| labradoritite | |
|---|---|
| BT | igneous rocks |
| .plutonic rocks | |
| ..gabbros | |
| ...labradoritite | |
| labuntsovite | |
|---|---|
| BT | silicates |
| .orthosilicates | |
| ..sorosilicates | |
| ...labuntsovite | |
| Labyrinthodontia | |
|---|---|
| BT | Chordata |
| .Vertebrata | |
| ..Tetrapoda | |
| ...Amphibia | |
| ....Labyrinthodontia | |
| NT | Anthracosauria |
| Temnospondyli | |
| SN | Subclass. |
| Lac du Bonnet | |
|---|---|
| BT | Canada |
| .Western Canada | |
| ..Manitoba | |
| ...Lac du Bonnet | |
| RT | Lac du Bonnet Batholith |
| Lac du Bonnet Manitoba | |
| SN | Lake in SE Manitoba. As of 1993, use Lac du Bonnet Manitoba for the town. Added to Thesaurus in 1989. |
| Lac du Bonnet Batholith | |
|---|---|
| BT | Canada |
| .Western Canada | |
| ..Manitoba | |
| ...Lac du Bonnet Batholith | |
| RT | Lac du Bonnet |
| Underground Research Laboratory | |
| SN | Intrusion; site for nuclear waste disposal management in SE Manitoba. Added to Thesaurus in 1989. |
| Lac du Bonnet Manitoba | |
|---|---|
| BT | Canada |
| .Western Canada | |
| ..Manitoba | |
| ...Lac du Bonnet Manitoba | |
| RT | Lac du Bonnet |
| SN | Town in SE Manitoba. |
| Lac du Bouchet | |
|---|---|
| BT | ute-Loire France |
| .Lac du Bouchet | |
| UF | Bouchet Lake |
| Lake Bouchet | |
| RT | Velay |
| SN | Maar lake in Velay region of Central Massif, Haute Loire, S central France. Added to Thesaurus in 1995. |
| Lac La Ronge | |
|---|---|
| BT | Canada |
| .Western Canada | |
| ..Saskatchewan | |
| ...Lac La Ronge | |
| UF | Lake La Ronge |
| RT | La Ronge Saskatchewan |
| SN | Lake in N central Saskatchewan. |
| Lac qui Parle County Minnesota | |
|---|---|
| BT | United States |
| .Minnesota | |
| ..Lac qui Parle County Minnesota | |
| Lac-Saint-Jean-Est County Quebec | |
|---|---|
| BT | Canada |
| .Eastern Canada | |
| ..Quebec | |
| ...Lac-Saint-Jean-Est County Quebec | |
| Lac-Saint-Jean-Ouest County Quebec | |
|---|---|
| BT | Canada |
| .Eastern Canada | |
| ..Quebec | |
| ...Lac-Saint-Jean-Ouest County Quebec | |
| Laccadive Islands | |
|---|---|
| BT | Asia |
| .Indian Peninsula | |
| ..India | |
| ...Laccadive Islands | |
| RT | Indian Ocean Islands |
| SN | Off SW coast of India in Lakshadweep Territory. Added to Thesaurus in 1981. |
| laccoliths | |
|---|---|
| BT | intrusions |
| .laccoliths | |
| UF | cistern rock |
| RT | domes |
| batholiths | |
| dikes | |
| lopoliths | |
| Lacertilia | |
|---|---|
| BT | Chordata |
| .Vertebrata | |
| ..Tetrapoda | |
| ...Reptilia | |
| ....Diapsida | |
| .....Lepidosauria | |
| ......Squamata | |
| .......Lacertilia | |
| NT | Mosasauridae |
| SN | Suborder. |
| Lachlan fold belt | |
|---|---|
| BT | Australasia |
| .Australia | |
| ..Lachlan fold belt | |
| RT | Queensland Australia |
| New South Wales Australia | |
| Tasmania Australia | |
| Victoria Australia | |
| SN | E Australia, from E central Queensland to NE Tasmania. Added to Thesaurus in 1981. |
| Lackawanna County Pennsylvania | |
|---|---|
| BT | United States |
| .Pennsylvania | |
| ..Lackawanna County Pennsylvania | |
| Laclede County Missouri | |
|---|---|
| BT | United States |
| .Missouri | |
| ..Laclede County Missouri | |
| LaCoste-Romberg gravimeters | |
|---|---|
| BT | gravimeters |
| .LaCoste-Romberg gravimeters | |
| SN | Added to Thesaurus in 1981. |
| lacustrine | |
|---|---|
| SN | A valid term through 1977. After 1977, use lacustrine features or (as of 1981) lacustrine environment. |
| lacustrine features | |
|---|---|
| UF | features, lacustrine |
| RT | geomorphology |
| fluviolacustrine environment | |
| lacustrine environment | |
| beaches | |
| inlets | |
| bedforms | |
| bogs | |
| fens | |
| marshes | |
| crater lakes | |
| glacial lakes | |
| kames | |
| lakes | |
| ephemeral lakes | |
| extinct lakes | |
| fan deltas | |
| ice dams | |
| glaciolacustrine environment | |
| limnology | |
| meromictic lakes | |
| mi | |
| SN | Also search lacustrine. |
| lacustrine sedimentation | |
|---|---|
| BT | sedimentation |
| .lacustrine sedimentation | |
| NT | fluviolacustrine sedimentation |
| glaciolacustrine sedimentation | |
| RT | fluviolacustrine environment |
| lacustrine environment | |
| SN | Added to Thesaurus in 1981. |
| lacustrine sediments | |
|---|---|
| USE | lake sediments |
| Ladak | |
|---|---|
| USE | Ladakh |
| Ladakh | |
|---|---|
| BT | Asia |
| .Indian Peninsula | |
| ..Jammu and Kashmir | |
| ...Ladakh | |
| UF | Ladak |
| RT | India |
| China | |
| Pakistan | |
| Indus-Yarlung Zangbo suture zone | |
| Karakoram | |
| SN | Region in Jammu and Kashmir. S Ladakh divided between India and Pakistan. Indexed with India and/or Pakistan as applicable. |
| Ladd Formation | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Mesozoic | |
| ...Cretaceous | |
| ....Upper Cretaceous | |
| .....Ladd Formation | |
| RT | California |
| Holz Shale | |
| SN | S California. Includes Holz Shale and Baker Conglomerate Member. Added to Thesaurus in 1989. |
| Ladinian | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Mesozoic | |
| ...Triassic | |
| ....Middle Triassic | |
| .....Ladinian | |
| RT | Hallstatt Limestone |
| SN | Europe: upper Middle Triassic. Above Anisian, below Carnian. |
| Ladner Group | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Mesozoic | |
| ...Jurassic | |
| ....Ladner Group | |
| RT | Washington |
| British Columbia | |
| SN | S British Columbia and N Washington. Added to Thesaurus in 1989. |
| Ladoga Series | |
|---|---|
| BT | Chronostratigraphic Units |
| .Precambrian | |
| ..Ladoga Series | |
| RT | Russian Federation |
| Finland | |
| Baltic Shield | |
| Karelia Russian Federation | |
| SN | Used for the Precambrian metamorphic unit in the Lake Ladoga region of the Russian Federation and Finland. Not to be confused with Quaternary deposits or Cambrian-Silurian sedimentary rocks of the same name in the same region. (These units will be assigne |
| Laetoli | |
|---|---|
| BT | Africa |
| .East Africa | |
| ..Tanzania | |
| ...Laetoli | |
| SN | Pliocene site of Tanzania. Added to Thesaurus in 1989. |
| Laetoli Beds | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Cenozoic | |
| ...Quarternary | |
| ....Pleistocene | |
| .....Laetoli Beds | |
| UF | Laetolil Beds |
| RT | Tanzania |
| SN | Pleistocene. Tanzania. Added to Thesaurus in 1993. |
| Laetolil Beds | |
|---|---|
| USE | Laetoli Beds |
| Lafayette County Arkansas | |
|---|---|
| BT | United States |
| .Arkansas | |
| ..Lafayette County Arkansas | |
| RT | Walker Creek Field |
| SN | SW Arkansas. |
| Lafayette County Florida | |
|---|---|
| BT | United States |
| .Florida | |
| ..Lafayette County Florida | |
| SN | Bounded by Suwannee River in N Florida. |
| Lafayette County Mississippi | |
|---|---|
| BT | United States |
| .Mississippi | |
| ..Lafayette County Mississippi | |
| NT | Oxford Mississippi |
| SN | N Mississippi. |
| Lafayette County Missouri | |
|---|---|
| BT | United States |
| .Missouri | |
| ..Lafayette County Missouri | |
| SN | W central Missouri. |
| Lafayette County Wisconsin | |
|---|---|
| BT | United States |
| .Wisconsin | |
| ..Lafayette County Wisconsin | |
| SN | S Wisconsin. |
| Lafayette Parish Louisiana | |
|---|---|
| BT | United States |
| .Louisiana | |
| ..Lafayette Parish Louisiana | |
| SN | S central Louisiana. |
| Lafourche Parish Louisiana | |
|---|---|
| BT | United States |
| .Louisiana | |
| ..Lafourche Parish Louisiana | |
| RT | Barataria Bay |
| SN | Extreme SE Louisiana, bordering on the Gulf of Mexico. |
| Lagenidae | |
|---|---|
| BT | Invertebrata |
| .Protista | |
| ..Foraminifera | |
| ...Rotaliina | |
| ....Lagenidae | |
| RT | microfossils |
| SN | Indexed with microfossils if applicable. |
| Lageos | |
|---|---|
| UF | Laser Geodynamics Satellite |
| RT | geophysical methods |
| geophysical surveys | |
| remote sensing | |
| satellite methods | |
| laser ranging | |
| SN | Added to Thesaurus in 1985. |
| Lagerstaetten | |
|---|---|
| USE | Lagerstatten |
| Lagerstatten | |
|---|---|
| UF | fossil Lagerstatten |
| Lagerstaetten | |
| RT | paleontology |
| morphology | |
| fossils | |
| anatomy | |
| fossilization | |
| taphonomy | |
| faunal studies | |
| floral studies | |
| preservation | |
| soft parts | |
| SN | Derived from the German for any type of deposit. As of 1998 restricted to deposits of exceptionally preserved biotas. Before 1998, also search soft parts and fossilization. Added to Thesaurus in 1998. |
| Laghouat | |
|---|---|
| BT | Africa |
| .North Africa | |
| ..Algeria | |
| ...Laghouat | |
| SN | Oasis in N central Algeria. After 1993, use Laghouat Algeria for the town. |
| Lago Maggiore | |
|---|---|
| BT | Europe |
| .Lago Maggiore | |
| RT | Piemonte Italy |
| Lombardy Italy | |
| Ticino River | |
| Ticino Switzerland | |
| SN | Lake in N Italy and S Switzerland. Indexed with countries and canton or provinces as applicable. |
| Lagomorpha | |
|---|---|
| BT | Chordata |
| .Vertebrata | |
| ..Tetrapoda | |
| ...Mammalia | |
| ....Theria | |
| .....Eutheria | |
| ......Lagomorpha | |
| NT | Leporidae |
| lagoonal | |
|---|---|
| SN | A valid term through 1977. After 1977, use lagoons or (as of 1981) lagoonal environment or lagoonal sedimentation. |
| lagoonal environment | |
|---|---|
| RT | aquatic environment |
| deep-water environment | |
| depositional environment | |
| ecology | |
| hypersaline environment | |
| lagoonal sedimentation | |
| lagoons | |
| paleoecology | |
| sedimentation | |
| SN | Added to Thesaurus in 1981. |
| lagoonal sedimentation | |
|---|---|
| BT | sedimentation |
| .lagoonal sedimentation | |
| RT | lagoonal environment |
| SN | Added to Thesaurus in 1981. |
| lagoons | |
|---|---|
| BT | shore features |
| .lagoons | |
| RT | sedimentation |
| ecology | |
| paleoecology | |
| geomorphology | |
| lagoonal environment | |
| segmentation | |
| atolls | |
| reefs | |
| beaches | |
| barrier reefs | |
| coastal environment | |
| lakes | |
| SN | As of 1981, use lagoonal environment for type of environment. Restricted to the natural feature. |
| Lagos Lagoon | |
|---|---|
| BT | Africa |
| .West Africa | |
| ..Nigeria | |
| ...Lagos Lagoon | |
| SN | Between Lagos Island just off the Gulf of Guinea and the mainland. City of Lagos at W end of lagoon. Also search Lagos. |
| Lagrange County Indiana | |
|---|---|
| BT | Indiana |
| .Lagrange County Indiana | |
| Laguna Madre | |
|---|---|
| RT | Baffin Bay |
| Gulf of Mexico | |
| Kenedy County Texas | |
| Mexico | |
| Padre Island | |
| Tamaulipas Mexico | |
| Texas | |
| SN | Inlet of the Gulf of Mexico located between Padre Island and mainland S Texas, S of Corpus Christi. Also an inlet of the Gulf of Mexico off the coast of Tamaulipas, E Mexico. Indexed with regions as applicable. Added to Thesaurus in 1989. |
| lahars | |
|---|---|
| BT | mass movements |
| .lahars | |
| RT | volcanism |
| geomorphology | |
| lava flows | |
| mudflows | |
| Lahn River | |
|---|---|
| BT | Europe |
| .Central Europe | |
| ..Germany | |
| ...Lahn River | |
| RT | Rhineland-Palatinate Germany |
| Hesse Germany | |
| SN | Flows S and SW into the Rhine River SE of Koblenz. Also search Lahn. Indexed with states as applicable. |
| Lahn River valley | |
|---|---|
| BT | Europe |
| .Central Europe | |
| ..Germany | |
| ...Lahn River valley | |
| RT | Rhineland-Palatinate Germany |
| Hesse Germany | |
| SN | Also search Lahn. Indexed with states as applicable. |
| laihunite | |
|---|---|
| BT | silicates |
| .orthosilicates | |
| ..nesosilicates | |
| ...laihunite | |
| UF | ferrifayalite |
| Laisvall Sweden | |
|---|---|
| BT | Europe |
| .Western Europe | |
| ..Scandinavia | |
| ...Sweden | |
| ....Norrbotten Sweden | |
| .....Laisvall Sweden | |
| SN | Village in N Sweden. |
| Lak |
|---|
| Lake Agassiz | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Cenozoic | |
| ...Quarternary | |
| ....Pleistocene | |
| .....Lake Agassiz | |
| RT | North Dakota |
| North America | |
| Minnesota | |
| Manitoba | |
| SN | Glacial lake which existed in Pleistocene Epoch. Covered parts of N central U.S. and S central Canada. Indexed with Manitoba and U.S. states as applicable. |
| Lake Albert | |
|---|---|
| BT | Africa |
| .East African Lakes | |
| ..Lake Albert | |
| UF | Lake Mobutu |
| RT | Congo Democratic Republic |
| Uganda | |
| East African Rift | |
| Upper Zaire Congo Democratic Republic | |
| SN | Indexed with Uganda and/or Congo Democratic Republic as applicable. |
| Lake Algonquin | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Cenozoic | |
| ...Quarternary | |
| ....Pleistocene | |
| .....Lake Algonquin | |
| RT | Ontario |
| Wisconsin | |
| North America | |
| Minnesota | |
| Michigan | |
| Lake Superior region | |
| SN | Pleistocene glacial lake. Occupied sites of modern lakes Superior, Michigan and Huron, and adjacent land areas. Indexed with Ontario and U.S. states as applicable. Added to Thesaurus in 1985. |
| Lake Athabasca | |
|---|---|
| BT | Canada |
| .Western Canada | |
| ..Lake Athabasca | |
| RT | Alberta |
| Saskatchewan | |
| Athabasca District | |
| SN | NW Saskatchewan and NE Alberta. Indexed with provinces as applicable. Added to Thesaurus in 1985. |
| Lake Baikal | |
|---|---|
| BT | Commonwealth of Independent States |
| .Russian Federation | |
| ..Lake Baikal | |
| BT | Asia |
| .Lake Baikal | |
| UF | Baikal (Lake) |
| RT | Irkutsk Russian Federation |
| Buryat Russian Federation | |
| Baikal region | |
| Baikal rift zone | |
| SN | Largest freshwater lake in Eurasia. Bounded on N, E, and S by the Buryatia, and on the W by Irkutsk Oblast. Also search Baikal AND lake or lakes. This term has multiple hierarchies. |
| Lake Balaton | |
|---|---|
| BT | szprem Hungary |
| .Lake Balaton | |
| UF | Balaton (Lake) |
| RT | Balaton region |
| SN | W Hungary. |
| Lake Balkhash | |
|---|---|
| BT | Commonwealth of Independent States |
| .Kazakhstan | |
| ..Lake Balkhash | |
| UF | Balkhash (Lake) |
| RT | Balkhash region |
| SN | E Kazakhstan. This term has multiple hierarchies. |
| Lake Baringo | |
|---|---|
| BT | Africa |
| .East African Lakes | |
| ..Lake Baringo | |
| UF | Baringo Lake |
| RT | Great Rift Valley |
| Kenya | |
| Kenya Rift valley | |
| SN | W central Kenya, in Great Rift Valley. Added to Thesaurus in 1981. |
| lake biscuits | |
|---|---|
| USE | algal biscuits |
| Lake Biwa | |
|---|---|
| BT | nshu |
| .Shiga Japan | |
| ..Lake Biwa | |
| UF | Biwa Lake |
| Omi (Lake) | |
| SN | W central Honshu. Also search Biwa. |
| Lake Bonneville | |
|---|---|
| RT | Great Salt Lake |
| Holocene | |
| Idaho | |
| Nevada | |
| United States | |
| Upper Pleistocene | |
| Utah | |
| SN | Large prehistoric body of water in present Great Salt Lake area. Indexed with states and age or ages as applicable. |
| Lake Bonney | |
|---|---|
| RT | South Australia |
| Taylor Valley | |
| Victoria Land | |
| SN | Lake in SE South Australia. Also in Taylor Valley of Victoria Land, Antarctica. Indexed with location as applicable. |
| Lake Bouchet | |
|---|---|
| USE | Lac du Bouchet |
| Lake Chad | |
|---|---|
| BT | Africa |
| .West Africa | |
| ..Lake Chad | |
| RT | Cameroon |
| Nigeria | |
| Niger | |
| Chad Basin | |
| Chad | |
| SN | Indexed with countries as applicable. |
| Lake Champlain | |
|---|---|
| BT | North America |
| .Lake Champlain | |
| RT | Quebec |
| Vermont | |
| New York | |
| Champlain Sea | |
| Champlain Valley | |
| SN | Between New York and Vermont extending into Quebec. Indexed with Quebec and states as applicable. |
| Lake Char Fault | |
|---|---|
| BT | United States |
| .Lake Char Fault | |
| RT | Massachusetts |
| Connecticut | |
| Rhode Island | |
| SN | SE New England. Indexed with states as applicable. Added to Thesaurus in 1985. |
| Lake Chatuge | |
|---|---|
| BT | United States |
| .Lake Chatuge | |
| RT | North Carolina |
| Georgia | |
| Clay County North Carolina | |
| Towns County Georgia | |
| SN | Indexed with counties as applicable. |
| Lake Chicago | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Cenozoic | |
| ...Quarternary | |
| ....Pleistocene | |
| .....Lake Chicago | |
| RT | United States |
| Illinois | |
| Indiana | |
| Wisconsin | |
| Michigan | |
| Great Lakes region | |
| SN | Pleistocene glacial lake in the Great Lakes region. Indexed with states as applicable. Added to Thesaurus in 1989. |
| Lake Como (Italy) | |
|---|---|
| USE | Como |
| Lake Constance | |
|---|---|
| BT | Europe |
| .Central Europe | |
| ..Lake Constance | |
| UF | Bodensee |
| Constance Lake | |
| RT | Switzerland |
| Bavaria Germany | |
| Baden-Wurttemberg Germany | |
| Rhine River | |
| Rhine Basin | |
| Vorarlberg Austria | |
| SN | Indexed with countries as applicable. |
| Lake County California | |
|---|---|
| BT | United States |
| .California | |
| ..Lake County California | |
| RT | Clear Lake |
| SN | NW California. |
| Lake County Colorado | |
|---|---|
| BT | United States |
| .Colorado | |
| ..Lake County Colorado | |
| NT | Climax Colorado |
| Leadville Colorado | |
| Leadville mining district | |
| Saint Kevin Gulch | |
| RT | Climax Mine |
| SN | Central Colorado. |
| Lake County Florida | |
|---|---|
| BT | United States |
| .Florida | |
| ..Lake County Florida | |
| SN | Bounded by Saint Johns River in central Florida. |
| Lake County Illinois | |
|---|---|
| BT | United States |
| .Illinois | |
| ..Lake County Illinois | |
| SN | Bounded by Lake Michigan in extreme NE Illinois. |
| Lake County Indiana | |
|---|---|
| BT | Indiana |
| .Lake County Indiana | |
| SN | Extreme NW Indiana. |
| Lake County Michigan | |
|---|---|
| BT | United States |
| .Michigan | |
| ..Michigan Lower Peninsula | |
| ...Lake County Michigan | |
| SN | W Michigan. |
| Lake County Minnesota | |
|---|---|
| BT | United States |
| .Minnesota | |
| ..Lake County Minnesota | |
| NT | Two Harbors Minnesota |
| RT | Vermilion Range |
| SN | NE Minnesota. |
| Lake County Montana | |
|---|---|
| BT | United States |
| .Montana | |
| ..Lake County Montana | |
| RT | Flathead Lake |
| SN | NW Montana. |
| Lake County Ohio | |
|---|---|
| BT | United States |
| .Ohio | |
| ..Lake County Ohio | |
| SN | NE Ohio. |
| Lake County Oregon | |
|---|---|
| BT | United States |
| .Oregon | |
| ..Lake County Oregon | |
| SN | S Oregon. |
| Lake County South Dakota | |
|---|---|
| BT | United States |
| .South Dakota | |
| ..Lake County South Dakota | |
| SN | E South Dakota. |
| Lake County Tennessee | |
|---|---|
| BT | United States |
| .Tennessee | |
| ..Lake County Tennessee | |
| RT | Reelfoot Lake |
| SN | Extreme NW Tennessee. |
| Lake District | |
|---|---|
| UF | English Lake District |
| RT | Cumbria England |
| Cumberland England | |
| Worcestershire England | |
| Westmorland England | |
| SN | Mountain and lake region in Cumbria, NW England. Until 1975, parts were included in Lancashire, Cumberland, and Westmorland counties. Indexed with England and counties as applicable. |
| Lake Edward | |
|---|---|
| BT | Africa |
| .East African Lakes | |
| ..Lake Edward | |
| RT | Congo Democratic Republic |
| Uganda | |
| East African Rift | |
| SN | S of Lake Albert. Indexed with countries as applicable. |
| Lake Erie | |
|---|---|
| BT | North America |
| .Great Lakes | |
| ..Lake Erie | |
| RT | Ontario |
| Ohio | |
| Pennsylvania | |
| New York | |
| Michigan | |
| Detroit River | |
| SN | Indexed with Ontario and states as applicable. |
| Lake Eyre | |
|---|---|
| BT | Australasia |
| .Australia | |
| ..South Australia | |
| ...Lake Eyre | |
| SN | NE South Australia. |
| Lake Frome | |
|---|---|
| BT | Australasia |
| .Australia | |
| ..South Australia | |
| ...Lake Frome | |
| SN | E South Australia. Added to Thesaurus in 1989. |
| Lake Geneva | |
|---|---|
| BT | Europe |
| .Lake Geneva | |
| UF | Lake Leman |
| Leman Lake | |
| RT | Haute-Savoie France |
| Valais Switzerland | |
| Geneva Switzerland | |
| Vaud Switzerland | |
| Rhone River | |
| Rhone Valley | |
| SN | Indexed with countries as applicable. |
| Lake George | |
|---|---|
| RT | Essex County New York |
| New York | |
| Washington County New York | |
| Warren County New York | |
| SN | NE New York. Indexed with counties or regions as applicable. |
| Lake Gosiute | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Cenozoic | |
| ...Paleogene | |
| ....Eocene | |
| .....Lake Gosiute | |
| RT | Green River Formation |
| Sweetwater County Wyoming | |
| SN | Eocene lake in SW Wyoming. Added to Thesaurus in 1981. |
| Lake Huron | |
|---|---|
| BT | North America |
| .Great Lakes | |
| ..Lake Huron | |
| RT | Ontario |
| Michigan | |
| Georgian Bay | |
| Manitoulin Island | |
| SN | Indexed with Michigan and/or Ontario. |
| Lake Iroquois | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Cenozoic | |
| ...Quarternary | |
| ....Pleistocene | |
| .....Upper Pleistocene | |
| ......Lake Iroquois | |
| RT | Canada |
| Ontario | |
| United States | |
| New York | |
| Great Lakes region | |
| Lake Ontario | |
| SN | Glacial lake which existed in the Lake Ontario basin and adjacent area. Indexed with Lake Ontario and/or Ontario and U.S. states as applicable. |
| Lake Jocassee | |
|---|---|
| BT | United States |
| .South Carolina | |
| ..Lake Jocassee | |
| RT | Oconee County South Carolina |
| Pickens County South Carolina | |
| SN | Reservoir on Keowee River, NW South Carolina, near Seneca. Indexed with counties as applicable. Added to Thesaurus in 1981. |
| Lake Kariba | |
|---|---|
| BT | Africa |
| .East African Lakes | |
| ..Lake Kariba | |
| UF | Kariba Lake |
| RT | Zambezi Valley |
| Zimbabwe | |
| Zambia | |
| SN | Formed by dam in Kariba Gorge of Zambezi River. Indexed with countries as applicable. |
| Lake Kinneret | |
|---|---|
| USE | Sea of Galilee |
| Lake Kivu | |
|---|---|
| BT | Africa |
| .Central Africa | |
| ..Lake Kivu | |
| BT | Africa |
| .East African Lakes | |
| ..Lake Kivu | |
| RT | Congo Democratic Republic |
| East African Rift | |
| Rwanda | |
| Kivu Congo Democratic Republic | |
| SN | This term has multiple hierarchies. Indexed with countries as applicable. |
| Lake La Ronge | |
|---|---|
| USE | Lac La Ronge |
| Lake Ladoga | |
|---|---|
| BT | Commonwealth of Independent States |
| .Russian Federation | |
| ..Lake Ladoga | |
| BT | Europe |
| .Lake Ladoga | |
| SN | E and NE of Saint Petersburg. This term has multiple hierarchies. |
| Lake Ladoga region | |
|---|---|
| BT | Europe |
| .Lake Ladoga region | |
| RT | Russian Federation |
| Finland | |
| Baltic Shield | |
| Karelia Russian Federation | |
| Eastern Finland Province | |
| Karelia | |
| SN | Region surrounding Lake Ladoga, extending into Finland. Indexed with countries as applicable. Added to Thesaurus in 1981. |
| Lake Lahontan | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Cenozoic | |
| ...Quarternary | |
| ....Pleistocene | |
| .....Lake Lahontan | |
| RT | United States |
| California | |
| Nevada | |
| Oregon | |
| SN | Extinct lake. Occupied parts of NW Nevada, NE California and SE Oregon during Pleistocene time. Indexed with states as applicable. Added to Thesaurus in 1985. |
| Lake Lappajarvi | |
|---|---|
| BT | Europe |
| .Western Europe | |
| ..Scandinavia | |
| ...Finland | |
| ....Western Finland Province | |
| .....Lake Lappajarvi | |
| RT | impact features |
| SN | SW central Finland. |
| Lake Leman | |
|---|---|
| USE | Lake Geneva |
| Lake Louise | |
|---|---|
| RT | Alberta |
| Banff National Park | |
| SN | Village and small lake in Banff National Park in SW Alberta. As of 1993, use Lake Louise Alberta for the village. Also in other locations. Indexed with province or regions as applicable. |
| Lake Magadi | |
|---|---|
| BT | Africa |
| .East African Lakes | |
| ..Lake Magadi | |
| BT | Africa |
| .East Africa | |
| ..Kenya | |
| ...Lake Magadi | |
| RT | East African Rift |
| SN | Soda lake in S central Kenya. This term has multiple hierarchies. |
| Lake Malawi | |
|---|---|
| BT | Africa |
| .East Africa | |
| ..Lake Malawi | |
| BT | Africa |
| .East African Lakes | |
| ..Lake Malawi | |
| UF | Lake Nyasa |
| RT | East African Rift |
| Malawi | |
| Mozambique | |
| Tanzania | |
| SN | This term has multiple hierarchies. Indexed with countries as applicable. |
| Lake Maracaibo | |
|---|---|
| BT | South America |
| .Venezuela | |
| ..Lake Maracaibo | |
| RT | Zulia Venezuela |
| Maracaibo Basin | |
| Trujillo Venezuela | |
| SN | Lake in NW Venezuela. |
| Lake Matagami | |
|---|---|
| USE | Matagami |
| Lake Maumee | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Cenozoic | |
| ...Quarternary | |
| ....Pleistocene | |
| .....Lake Maumee | |
| RT | Ontario |
| Indiana | |
| Ohio | |
| North America | |
| Michigan | |
| Great Lakes region | |
| SN | Pleistocene glacial lake in Ontario, Ohio, Michigan and Indiana. Indexed with states or provinces as applicable. Added to Thesaurus in 1989. |
| Lake Mead | |
|---|---|
| RT | Arizona |
| Clark County Nevada | |
| Lake Mead Fault | |
| Lost City | |
| Mohave County Arizona | |
| Nevada | |
| United States | |
| SN | Within Lake Mead National Recreation Area. Indexed with states and counties as applicable. |
| Lake Mead Fault | |
|---|---|
| BT | United States |
| .Nevada | |
| ..Lake Mead Fault | |
| RT | Lake Mead |
| SN | S Nevada. Added to Thesaurus in 1989. |
| Lake Mendota | |
|---|---|
| BT | United States |
| .Wisconsin | |
| ..Dane County Wisconsin | |
| ...Lake Mendota | |
| RT | Madison Wisconsin |
| SN | In Dane County, S central Wisconsin. |
| Lake Michigan | |
|---|---|
| BT | North America |
| .Great Lakes | |
| ..Lake Michigan | |
| RT | United States |
| Illinois | |
| Indiana | |
| Wisconsin | |
| Michigan | |
| Green Bay | |
| Wedron Formation | |
| SN | Indexed with states as applicable. |
| Lake Michigan Basin | |
|---|---|
| USE | Michigan Basin |
| Lake Michigan Lobe | |
|---|---|
| RT | Canada |
| Great Lakes region | |
| Illinois | |
| Indiana | |
| Laurentide ice sheet | |
| Michigan | |
| United States | |
| Wisconsin | |
| SN | Part of Laurentide ice sheet, Wisconsinan glaciation. |
| Lake Missoula | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Cenozoic | |
| ...Quarternary | |
| ....Pleistocene | |
| .....Lake Missoula | |
| RT | United States |
| Idaho | |
| Montana | |
| Washington | |
| Oregon | |
| Channeled Scabland | |
| SN | Pleistocene glacial lake in NW United States. Indexed with states as applicable. Added to Thesaurus in 1985. |
| Lake Mobutu | |
|---|---|
| USE | Lake Albert |
| Lake Natron | |
|---|---|
| BT | Africa |
| .East Africa | |
| ..Lake Natron | |
| BT | Africa |
| .East African Lakes | |
| ..Lake Natron | |
| RT | East African Rift |
| Kenya | |
| Tanzania | |
| SN | This term has multiple hierarchies. Indexed with countries as applicable. |
| Lake Neusiedler | |
|---|---|
| BT | Europe |
| .Central Europe | |
| ..Lake Neusiedler | |
| UF | Ferto to |
| Neusiedler Lake | |
| Neusiedlersee | |
| RT | Austria |
| Hungary | |
| Burgenland Austria | |
| SN | E Austria and NW Hungary. Indexed with countries as applicable. Added to Thesaurus in 1985. |
| Lake Nipissing | |
|---|---|
| BT | Canada |
| .Eastern Canada | |
| ..Ontario | |
| ...Nipissing District Ontario | |
| ....Lake Nipissing | |
| RT | Callander Bay |
| SN | Nipissing District, SE Ontario. Added to Thesaurus in 1989. |
| Lake Nyasa | |
|---|---|
| USE | Lake Malawi |
| Lake Nyos | |
|---|---|
| BT | Africa |
| .West Africa | |
| ..Cameroon | |
| ...Lake Nyos | |
| UF | Nyos |
| SN | Volcanic crater lake in NW Cameroon. Site of carbon dioxide outgassing natural disasters. Added to Thesaurus in 1993. |
| Lake of Bienne | |
|---|---|
| USE | Biel Lake |
| Lake of Laach | |
|---|---|
| USE | Laacher See |
| Lake of the Woods | |
|---|---|
| BT | North America |
| .Lake of the Woods | |
| RT | Ontario |
| Minnesota | |
| Manitoba | |
| Lake of the Woods region | |
| SN | NW Ontario, SE Manitoba and N Minnesota. Indexed with provinces and/or Minnesota and counties as applicable. Added to Thesaurus in 1989. |
| Lake of the Woods County Minnesota | |
|---|---|
| BT | United States |
| .Minnesota | |
| ..Lake of the Woods County Minnesota | |
| Lake of the Woods region | |
|---|---|
| BT | North America |
| .Lake of the Woods region | |
| RT | Ontario |
| Minnesota | |
| Manitoba | |
| Lake of the Woods | |
| SN | N Minnesota, SW Ontario and SE Manitoba. Indexed with Minnesota and counties and/or Canadian provinces as applicable. Added to Thesaurus in 1985. |
| Lake of Zurich | |
|---|---|
| BT | Europe |
| .Central Europe | |
| ..Switzerland | |
| ...Lake of Zurich | |
| RT | Zurich Switzerland |
| SN | N Switzerland. |
| Lake Okeechobee | |
|---|---|
| BT | United States |
| .Florida | |
| ..Lake Okeechobee | |
| SN | S central Florida. |
| Lake Onega | |
|---|---|
| BT | Commonwealth of Independent States |
| .Russian Federation | |
| ..Lake Onega | |
| BT | Europe |
| .Lake Onega | |
| RT | Karelia Russian Federation |
| Karelia | |
| Onega Russian Federation | |
| SN | In Karelia Autonomous Republic. This term has multiple hierarchies. |
| Lake Ontario | |
|---|---|
| BT | North America |
| .Great Lakes | |
| ..Lake Ontario | |
| RT | Ontario |
| New York | |
| Lake Iroquois | |
| SN | Indexed with New York and/or Ontario as applicable. |
| Lake Pontchartrain | |
|---|---|
| BT | United States |
| .Louisiana | |
| ..Lake Pontchartrain | |
| SN | S Louisiana. Indexed with parishes as applicable. |
| Lake Powell | |
|---|---|
| BT | United States |
| .Lake Powell | |
| RT | Utah |
| Arizona | |
| Coconino County Arizona | |
| Garfield County Utah | |
| San Juan County Utah | |
| Glen Canyon Dam | |
| Kane County Utah | |
| SN | Artificial lake in S Utah and N Arizona, in Glen Canyon National Recreation Area. Indexed with states and counties as applicable. |
| Lake Rudolf | |
|---|---|
| USE | Lake Turkana |
| Lake Rudolph | |
|---|---|
| USE | Lake Turkana |
| Lake Saint Clair | |
|---|---|
| RT | Detroit River |
| Great Lakes region | |
| Macomb County Michigan | |
| Michigan | |
| Michigan Lower Peninsula | |
| North America | |
| Ontario | |
| Saint Clair County Michigan | |
| Thames River | |
| Wayne County Michigan | |
| SN | SE Michigan and SW Ontario. Indexed with North America or Michigan and U.S. counties or and/or Ontario as applicable. Added to Thesaurus in 1989. |
| lake sediments | |
|---|---|
| UF | lacustrine sediments |
| RT | glacial geology |
| sediments | |
| fluviolacustrine environment | |
| lacustrine environment | |
| geochemical surveys | |
| mineral exploration | |
| lakes | |
| glaciolacustrine environment | |
| glaciolacustrine sedimentation | |
| SN | Before 1998, used chiefly for economic studies. Also search (lacustrine environment OR fluviolacustrine environment OR glaciolacustrine environment) AND sediments. Before 1981, also search sediments AND lakes. Added to Thesaurus in 1981. |
| Lake Sevan | |
|---|---|
| BT | Europe |
| .Armenia | |
| ..Lake Sevan | |
| RT | Razdan River |
| Sevan Armenia | |
| SN | N Armenia. This term has multiple hierarchies. |
| Lake Superior | |
|---|---|
| BT | North America |
| .Great Lakes | |
| ..Lake Superior | |
| RT | Ontario |
| Wisconsin | |
| Minnesota | |
| Michigan | |
| Batchawana Bay | |
| Lake Superior region | |
| Keweenaw Peninsula | |
| Thunder Bay | |
| SN | Indexed with Ontario and states as applicable. |
| Lake Superior Basin | |
|---|---|
| USE | Lake Superior region |
| Lake Superior region | |
|---|---|
| BT | North America |
| .Lake Superior region | |
| UF | Lake Superior Basin |
| RT | Ontario |
| Wisconsin | |
| Minnesota | |
| Michigan | |
| Lake Superior | |
| Great Lakes region | |
| Lake Algonquin | |
| Southern Province | |
| SN | Term reintroduced in 1985. Also search Lake Superior. Not a valid term from 1972-1984. Indexed with Lake Superior, Ontario and states as applicable. Added to Thesaurus in 1985. |
| Lake Suwa | |
|---|---|
| BT | nshu |
| .Nagano Japan | |
| ..Lake Suwa | |
| SN | W central Honshu. |
| Lake Tahoe | |
|---|---|
| BT | United States |
| .Lake Tahoe | |
| RT | California |
| Nevada | |
| Douglas County Nevada | |
| El Dorado County California | |
| Placer County California | |
| Washoe County Nevada | |
| SN | E California and W Nevada. Indexed with states and counties as applicable. |
| Lake Tanganyika | |
|---|---|
| BT | Africa |
| .East African Lakes | |
| ..Lake Tanganyika | |
| RT | Congo Democratic Republic |
| Zambia | |
| Burundi | |
| East African Rift | |
| Tanzania | |
| SN | Indexed with countries as applicable. |
| Lake Taupo | |
|---|---|
| BT | Australasia |
| .New Zealand | |
| ..Lake Taupo | |
| RT | North Island |
| SN | Central North Island, New Zealand. Also index North Island. Added to Thesaurus in 1989. |
| Lake Temiscamingue | |
|---|---|
| USE | Lake Timiskaming |
| Lake Temiskaming | |
|---|---|
| USE | Lake Timiskaming |
| Lake Tiberias | |
|---|---|
| USE | Sea of Galilee |
| Lake Timiskaming | |
|---|---|
| BT | Canada |
| .Eastern Canada | |
| ..Lake Timiskaming | |
| UF | Lake Temiscamingue |
| Lake Temiskaming | |
| Temiscamingue Lake | |
| Temiskaming Lake | |
| Timiskaming Lake | |
| RT | Ontario |
| Quebec | |
| Timiskaming District Ontario | |
| Temiscamingue County Quebec | |
| SN | In SW Quebec and E central Ontario. Before 1985, also search Timiskaming. Indexed with provinces as applicable. Added to Thesaurus in 1981. |
| Lake Titicaca | |
|---|---|
| BT | South America |
| .Lake Titicaca | |
| RT | Altiplano |
| La Paz Bolivia | |
| Puno Peru | |
| SN | Indexed with countries as applicable. |
| Lake Torrens | |
|---|---|
| BT | Australasia |
| .Australia | |
| ..South Australia | |
| ...Lake Torrens | |
| SN | E central South Australia. |
| Lake Turkana | |
|---|---|
| BT | Africa |
| .East Africa | |
| ..Lake Turkana | |
| BT | Africa |
| .East African Lakes | |
| ..Lake Turkana | |
| UF | Lake Rudolf |
| Lake Rudolph | |
| Rudolf (Lake) | |
| RT | Ethiopia |
| Sudan | |
| East African Rift | |
| Kenya | |
| Turkana Basin | |
| SN | New name for Lake Rudolf. Primarily in Kenya. This term has multiple hierarchies. Indexed with countries as applicable. |
| Lake Uinta | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Cenozoic | |
| ...Paleogene | |
| ....Eocene | |
| .....Lake Uinta | |
| RT | United States |
| Utah | |
| Wyoming | |
| Colorado | |
| SN | Extinct lake. Occupied parts of W Colorado, SW Wyoming and E Utah during Eocene time. Indexed with states as applicable. Added to Thesaurus in 1985. |
| Lake Valley Formation | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Paleozoic | |
| ...Carboniferous | |
| ....Mississippian | |
| .....Lower Mississippian | |
| ......Lake Valley Formation | |
| RT | New Mexico |
| SN | Includes Alamogordo, Arcente, Dona Ana, and Nunn members. |
| Lake Vanda | |
|---|---|
| BT | Antarctica |
| .Victoria Land | |
| ..Lake Vanda | |
| SN | Saline lake in dry-valleys region of S Victoria Land, near McMurdo Sound. Added to Thesaurus in 1981. |
| Lake Victoria | |
|---|---|
| BT | Africa |
| .East Africa | |
| ..Lake Victoria | |
| BT | Africa |
| .East African Lakes | |
| ..Lake Victoria | |
| RT | Uganda |
| Kenya | |
| Tanzania | |
| SN | This term has multiple hierarchies. Indexed with countries as applicable. |
| Lake Washington | |
|---|---|
| RT | King County Washington |
| Minnesota | |
| Washington | |
| SN | NW Washington, near Seattle; Meeker County, S central Minnesota, and elsewhere. Indexed with states and counties as applicable. Added to Thesaurus in 1989. |
| Lake Winnipeg | |
|---|---|
| BT | Canada |
| .Western Canada | |
| ..Manitoba | |
| ...Lake Winnipeg | |
| SN | S central Manitoba. |
| lake-level changes | |
|---|---|
| RT | lacustrine environment |
| lakes | |
| levels | |
| paleogeography | |
| regression | |
| shorelines | |
| stratigraphy | |
| transgression | |
| SN | Also search (lacustrine environment OR lacustrine sedimentation) AND (changes of level OR levels). Added to Thesaurus in 1998. |
| lakes | |
|---|---|
| NT | crater lakes |
| ephemeral lakes | |
| glacial lakes | |
| meromictic lakes | |
| RT | drainage |
| ecology | |
| eutrophication | |
| extinct lakes | |
| geomorphology | |
| glacial features | |
| glaciolacustrine environment | |
| hydrogen sulfide | |
| hydrology | |
| hydrosphere | |
| lacustrine environment | |
| lacustrine features | |
| lagoons | |
| lake sediments | |
| lake-level changes | |
| lava lakes | |
| limnology | |
| pale | |
| SN | Used for the geomorphologic feature. As of 1981, use lacustrine environment for type of environment. Before 1972, was sometimes used in combination with extinct (i.e. lakes, extinct). Now use extinct lakes. Also index lacustrine features as applicable. |
| Lakota Formation | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Mesozoic | |
| ...Cretaceous | |
| ....Lower Cretaceous | |
| .....Lakota Formation | |
| RT | Wyoming |
| Montana | |
| Nebraska | |
| South Dakota | |
| Inyan Kara Group | |
| SN | In Inyan Kara Group. Montana, W South Dakota, NE Nebraska and E Wyoming. Added to Thesaurus in 1985. |
| Lakshmi Planum | |
|---|---|
| BT | Venus |
| .Ishtar Terra | |
| ..Lakshmi Planum | |
| SN | High plateau region, W Ishtar Terra. Before 1993, also search Lakshmi Plateau AND Venus. Added to Thesaurus in 1993. |
| Lamar County Alabama | |
|---|---|
| BT | United States |
| .Alabama | |
| ..Lamar County Alabama | |
| SN | W Alabama. |
| Lamar County Georgia | |
|---|---|
| BT | United States |
| .Georgia | |
| ..Lamar County Georgia | |
| SN | W central Georgia. |
| Lamar County Mississippi | |
|---|---|
| BT | United States |
| .Mississippi | |
| ..Lamar County Mississippi | |
| SN | SE Mississippi. |
| Lamar County Texas | |
|---|---|
| BT | United States |
| .Texas | |
| ..Lamar County Texas | |
| SN | NE Texas. |
| Lamb County Texas | |
|---|---|
| BT | United States |
| .Texas | |
| ..Lamb County Texas | |
| Lambton County Ontario | |
|---|---|
| BT | Canada |
| .Eastern Canada | |
| ..Ontario | |
| ...Lambton County Ontario | |
| SN | S Ontario. |
| lamellae | |
|---|---|
| RT | deformation |
| minerals | |
| SN | Restricted to use with minerals. Not used in biological sense. |
| Lamellibranchiata | |
|---|---|
| USE | Bivalvia |
| laminar flow | |
|---|---|
| RT | critical flow |
| fluid dynamics | |
| ground water | |
| hydraulics | |
| hydrodynamics | |
| hydrology | |
| sediment transport | |
| sedimentation | |
| SN | Added to Thesaurus in 1982. |
| laminations | |
|---|---|
| BT | sedimentary structures |
| .planar bedding structures | |
| ..laminations | |
| RT | foliation |
| bedding | |
| cross-bedding | |
| stratification | |
| Bouma sequence | |
| laminite | |
| cross-laminations | |
| ripple drift-cross laminations | |
| SN | Before 1976, also search lamination. |
| laminite | |
|---|---|
| RT | clastic rocks |
| detritus | |
| flysch | |
| laminations | |
| planar bedding structures | |
| rhythmite | |
| turbidite | |
| SN | Used as either a sedimentary rock or as a sedimentary structure. Also index clastic rocks or planar bedding structures as applicable. Added to Thesaurus in 1995. |
| Lamnidae | |
|---|---|
| BT | Chordata |
| .Vertebrata | |
| ..Pisces | |
| ...Chondrichthyes | |
| ....Elasmobranchii | |
| .....Selachii | |
| ......Galeoidea | |
| .......Lamnidae | |
| SN | Family. |
| Lamoille County Vermont | |
|---|---|
| BT | United States |
| .Vermont | |
| ..Lamoille County Vermont | |
| Lamont-Doherty Earth Observatory | |
|---|---|
| UF | Lamont-Doherty Geological Observatory |
| LDEO | |
| RT | academic institutions |
| New York | |
| SN | In Palisades, SE New York. Part of Columbia University. |
| Lamont-Doherty Geological Observatory | |
|---|---|
| USE | Lamont-Doherty Earth Observatory |
| Lamott Sandstone | |
|---|---|
| USE | Lamotte Sandstone |
| Lamotte Sandstone | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Paleozoic | |
| ...Cambrian | |
| ....Upper Cambrian | |
| .....Lamotte Sandstone | |
| UF | Lamott Sandstone |
| RT | Missouri |
| SN | E and central Missouri. Added to Thesaurus in 1985. |
| Lamoure County North Dakota | |
|---|---|
| BT | United States |
| .North Dakota | |
| ..Lamoure County North Dakota | |
| Lampang Thailand | |
|---|---|
| BT | Asia |
| .Far East | |
| ..Thailand | |
| ...Lampang Thailand | |
| SN | City and province in NW Thailand. |
| Lampasas County Texas | |
|---|---|
| BT | United States |
| .Texas | |
| ..Lampasas County Texas | |
| lamproite | |
|---|---|
| BT | igneous rocks |
| .plutonic rocks | |
| ..lamprophyres | |
| ...lamproite | |
| lamproite pipes | |
|---|---|
| SN | Not a valid term for GeoRef. Search lamproite AND (pipes OR diatremes). |
| lamprophyre and carbonatite family | |
|---|---|
| SN | As of 1981, no longer a valid term for GeoRef. Use lamprophyres or carbonatites as applicable. |
| lamprophyres | |
|---|---|
| BT | igneous rocks |
| .plutonic rocks | |
| ..lamprophyres | |
| NT | alnoite |
| camptonite | |
| kersantite | |
| lamproite | |
| minette | |
| monchiquite | |
| spessartite | |
| vogesite | |
| SN | Before 1981, search lamprophyre and carbonatite family. |
| Lanark County Ontario | |
|---|---|
| BT | Canada |
| .Eastern Canada | |
| ..Ontario | |
| ...Lanark County Ontario | |
| NT | Perth Ontario |
| Lancang-Gengma earthquake 1988 | |
|---|---|
| BT | earthquakes |
| .Lancang-Gengma earthquake 1988 | |
| UF | Gengma-Lancang earthquake 1988 |
| RT | China |
| Yunnan China | |
| SN | E Yunnan, China. Added to Thesaurus in 1993. |
| Lancara Form |
|---|
| Lancara Formation | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Paleozoic | |
| ...Cambrian | |
| ....Lancara Formation | |
| RT | Middle Cambrian |
| Spain | |
| Lower Cambrian | |
| SN | Lower and Middle Cambrian. Formerly considered Middle Cambrian. Overlies Herreira Sandstone. NW Spain. Indexed with Lower Cambrian and/or Middle Cambrian as applicable. |
| Lancashire England | |
|---|---|
| BT | Europe |
| .Western Europe | |
| ..United Kingdom | |
| ...Great Britain | |
| ....England | |
| .....Lancashire England | |
| NT | Clitheroe England |
| RT | Morecambe Bay |
| Liverpool Bay | |
| Manchester England | |
| SN | County in NW England. In 1974, parts were taken to form two new counties, Merseyside and Greater Manchester. |
| Lancaster County Nebraska | |
|---|---|
| BT | United States |
| .Nebraska | |
| ..Lancaster County Nebraska | |
| SN | SE Nebraska. |
| Lancaster County Pennsylvania | |
|---|---|
| BT | United States |
| .Pennsylvania | |
| ..Lancaster County Pennsylvania | |
| SN | SE Pennsylvania. |
| Lancaster County South Carolina | |
|---|---|
| BT | United States |
| .South Carolina | |
| ..Lancaster County South Carolina | |
| SN | N South Carolina. |
| Lancaster County Virginia | |
|---|---|
| BT | United States |
| .Virginia | |
| ..Lancaster County Virginia | |
| SN | E Virginia. |
| Lancaster Sound | |
|---|---|
| BT | Canada |
| .Northwest Territories | |
| ..Franklin District Northwest Territories | |
| ...Lancaster Sound | |
| BT | Canada |
| .Eastern Canada | |
| ..Lancaster Sound | |
| SN | Channel between Devon Island and N Baffin Island in E Franklin District. This term has multiple hierarchies. |
| Lance Formation | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Mesozoic | |
| ...Cretaceous | |
| ....Upper Cretaceous | |
| .....Lance Formation | |
| RT | Wyoming |
| Montana | |
| Colorado | |
| North Dakota | |
| South Dakota | |
| SN | Includes Colgate Sandstone Member, Cannonball Marine Member, Ludlow Lignitic Member, Tullock Member, Hell Creek Member, Torrington Member, and Ilo Ridge Member. Montana, W North Dakota, W South Dakota, and Wyoming. |
| Lanchou China | |
|---|---|
| USE | Lanzhou China |
| Lanchow China | |
|---|---|
| USE | Lanzhou China |
| land bridges | |
|---|---|
| RT | biogeography |
| continental drift | |
| faunal provinces | |
| floral provinces | |
| migration | |
| paleogeography | |
| sea-level changes | |
| SN | Added to Thesaurus in 1985. |
| land canyons | |
|---|---|
| USE | canyons |
| land cover maps | |
|---|---|
| BT | maps |
| .land use maps | |
| ..land cover maps | |
| RT | land use |
| natural resources | |
| environmental geology maps | |
| SN | Also search land cover and maps. Added to Thesaurus in 1993. |
| land forms | |
|---|---|
| USE | landforms |
| land leases | |
|---|---|
| RT | conservation |
| reclamation | |
| land loss | |
|---|---|
| RT | degradation |
| erosion | |
| erosion rates | |
| floods | |
| geologic hazards | |
| land subsidence | |
| land use | |
| polders | |
| reclamation | |
| sea-level changes | |
| shorelines | |
| soil erosion | |
| utilization | |
| SN | For the environmental problem of loss of land from causes such as erosion, coastal subsidence, sea-level rise or major degradation of land quality. Also index specific type. Added to Thesaurus in 1998. |
| land management | |
|---|---|
| RT | agriculture |
| basin management | |
| conservation | |
| decision-making | |
| environmental effects | |
| land use | |
| legislation | |
| natural resources | |
| public policy | |
| public lands | |
| regulations | |
| U. S. Bureau of Land Management | |
| wilderness areas | |
| SN | Added to Thesaurus in 1998. |
| land reclamation | |
|---|---|
| USE | reclamation |
| land subsi |
|---|
| land subsidenc |
|---|
| land subsidence | |
|---|---|
| RT | abandoned mines |
| collapse structures | |
| compactness | |
| dams | |
| engineering geology | |
| explosions | |
| foundations | |
| geologic hazards | |
| highways | |
| land loss | |
| mechanics | |
| mines | |
| oil and gas fields | |
| railroads | |
| rock mechanics | |
| settlement | |
| site exploration | |
| slope stability | |
| soil mechanics | |
| solu | |
| SN | Used for geotechnical studies on land subsidence. |
| land use maps | |
|---|---|
| BT | maps |
| .land use maps | |
| NT | land cover maps |
| RT | environmental geology |
| land use | |
| environmental geology maps | |
| SN | Before 1983, also search land use AND maps. Added to Thesaurus in 1983. |
| Land's End | |
|---|---|
| BT | Europe |
| .Western Europe | |
| ..United Kingdom | |
| ...Great Britain | |
| ....England | |
| .....Cornwall England | |
| ......Land's End | |
| UF | Lands End |
| SN | Cape. SW end of Cornwall. |
| Landenian | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Cenozoic | |
| ...Paleogene | |
| ....Paleocene | |
| .....upper Paleocene | |
| ......Landenian | |
| SN | Belgium. |
| Lander County Nevada | |
|---|---|
| BT | United States |
| .Nevada | |
| ..Lander County Nevada | |
| RT | Toquima Range |
| Battle Mountain | |
| Copper Canyon | |
| Shoshone Mountains | |
| Toiyabe Range | |
| SN | N central Nevada. |
| Landers California | |
|---|---|
| BT | United States |
| .California | |
| ..San Bernardino County California | |
| ...Landers California | |
| SN | Mojave Desert, S California. |
| Landers earthquake 1992 | |
|---|---|
| BT | earthquakes |
| .Landers earthquake 1992 | |
| RT | California |
| Mojave Desert | |
| Big Bear earthquake 1992 | |
| Joshua Tree earthquake 1992 | |
| Southern California | |
| Little Skull Mountain earthquake 1992 | |
| SN | Epicenter near Landers, San Bernardino County, S California. Big Bear earthquake 1992 is a major aftershock. Added to Thesaurus in 1995. |
| Landes France | |
|---|---|
| BT | Europe |
| .Western Europe | |
| ..France | |
| ...Landes France | |
| NT | Capbreton France |
| RT | Adour Basin |
| SN | Department in SW France. |
| landfills | |
|---|---|
| NT | sanitary landfills |
| RT | disposal barriers |
| engineering geology | |
| environmental geology | |
| far-field | |
| near-field | |
| underground disposal | |
| waste disposal | |
| waste disposal sites | |
| waste management | |
| landform description | |
|---|---|
| RT | aerial photography |
| description | |
| exhumation | |
| geomorphology | |
| landform evolution | |
| landforms | |
| landscapes | |
| morphometry | |
| mountains | |
| relief | |
| surficial geology | |
| SN | Before 1975, also search surficial geology. |
| landforms | |
|---|---|
| UF | land forms |
| relief features | |
| RT | plains |
| geomorphology | |
| landform description | |
| mountains | |
| landform evolution | |
| valleys | |
| inliers | |
| steppes | |
| plateaus | |
| hills | |
| landscapes | |
| relief exposure | |
| tundra | |
| landing sites | |
|---|---|
| UF | sites, landing |
| RT | Moon |
| Mars | |
| Venus | |
| Apollo Program | |
| lunar bases | |
| Viking Program | |
| Lands End | |
|---|---|
| USE | Land's End |
| Landsat | |
|---|---|
| RT | geophysical methods |
| geophysical surveys | |
| image enhancement | |
| imagery | |
| multispectral scanner | |
| remote sensing | |
| satellite methods | |
| telemetry | |
| thematic mapper | |
| SN | Before 1978, also search ERTS; ERTS-1. |
| landscape evolution | |
|---|---|
| USE | landform evolution |
| landscapes | |
|---|---|
| RT | geomorphology |
| landform description | |
| landforms | |
| tundra | |
| Lane County Kansas | |
|---|---|
| BT | United States |
| .Kansas | |
| ..Lane County Kansas | |
| SN | W central Kansas. |
| Lane County Oregon | |
|---|---|
| BT | United States |
| .Oregon | |
| ..Lane County Oregon | |
| SN | On Pacific Ocean in W Oregon. |
| Lanersbach Austria | |
|---|---|
| BT | Europe |
| .Central Europe | |
| ..Austria | |
| ...Tyrol Austria | |
| ....Lanersbach Austria | |
| SN | Village SE of Innsbruck in central Tyrol, W Austria. |
| Laneuveville-devant-Nancy Boring | |
|---|---|
| RT | Meurthe-et-Moselle France |
| SN | Boring at or near outer SE suburb of Nancy. Indexed with location. |
| Laney Shale Member | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Cenozoic | |
| ...Paleogene | |
| ....Eocene | |
| .....middle Eocene | |
| ......Laney Shale Member | |
| RT | Wyoming |
| Colorado | |
| Green River Formation | |
| SN | Of Green River Formation. SW Wyoming. |
| langbeinite | |
|---|---|
| BT | sulfates |
| .langbeinite | |
| Langebaanweg South Africa | |
|---|---|
| BT | Africa |
| .Southern Africa | |
| ..South Africa | |
| ...Western Cape Province South Africa | |
| ....Langebaanweg South Africa | |
| RT | Cape Province region |
| SN | Village in SW South Africa. |
| Langesund Fjord | |
|---|---|
| BT | Europe |
| .Western Europe | |
| ..Scandinavia | |
| ...Norway | |
| ....Telemark Norway | |
| .....Langesund Fjord | |
| RT | Skagerrak |
| SN | Inlet of the Skagerrak. |
| Langhe | |
|---|---|
| BT | Europe |
| .Southern Europe | |
| ..Italy | |
| ...Langhe | |
| RT | Piemonte Italy |
| SN | Region NW of Genoa. |
| Langhian | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Cenozoic | |
| ...Neogene | |
| ....Miocene | |
| .....Langhian | |
| SN | Europe. |
| Langkawi Islands | |
|---|---|
| BT | Asia |
| .Far East | |
| ..Malaysia | |
| ...West Malaysia | |
| ....Langkawi Islands | |
| RT | Kedah Malaysia |
| SN | Group in Andaman Sea near entrance to Strait of Malacca. Administrated by Kedah state in West Malaysia. Also search Langkawi. This term has multiple hierarchies. |
| Langlade County Wisconsin | |
|---|---|
| BT | United States |
| .Wisconsin | |
| ..Langlade County Wisconsin | |
| Langmuir equation | |
|---|---|
| RT | adsorption |
| equations | |
| geochemistry | |
| soils | |
| SN | Added to Thesaurus in 1985. |
| Languedoc | |
|---|---|
| BT | Europe |
| .Western Europe | |
| ..France | |
| ...Languedoc | |
| SN | Historical region of S France. |
| Lanier County Georgia | |
|---|---|
| BT | United States |
| .Georgia | |
| ..Lanier County Georgia | |
| Lansing Group | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Paleozoic | |
| ...Carboniferous | |
| ....Pennsylvanian | |
| .....Upper Pennsylvanian | |
| ......Missourian | |
| .......Lansing Group | |
| RT | Kansas |
| Plattsburg Limestone | |
| Stanton Formation | |
| SN | Includes Lane Shale, Plattsburg Limestone, Vilas Shale, Stanton Limestone. |
| Lansing Michigan | |
|---|---|
| BT | United States |
| .Michigan | |
| ..Michigan Lower Peninsula | |
| ...Lansing Michigan | |
| RT | Clinton County Michigan |
| Eaton County Michigan | |
| Ingham County Michigan | |
| SN | City in Clinton, Eaton, and Ingham counties, S Michigan. Indexed with counties as applicable. |
| lanthanide series | |
|---|---|
| USE | rare earths |
| lanthanides | |
|---|---|
| USE | rare earths |
| lanthanoans | |
|---|---|
| USE | rare earths |
| lanthanum | |
|---|---|
| BT | metals |
| .rare earths | |
| ..lanthanum | |
| UF | La |
| RT | lithophile elements |
| cerium | |
| Lanzarote | |
|---|---|
| BT | Atlantic Ocean Islands |
| .Canary Islands | |
| ..Lanzarote | |
| SN | Easternmost of the Spanish controlled Canary Islands. |
| Lanzhou China | |
|---|---|
| BT | Asia |
| .Far East | |
| ..China | |
| ...Gansu China | |
| ....Lanzhou China | |
| UF | Lanchou China |
| Lanchow China | |
| SN | Capital of Gansu on the Huang He, Loess Plateau of central China. |
| Lanzo Massif | |
|---|---|
| BT | Europe |
| .Southern Europe | |
| ..Italy | |
| ...Piemonte Italy | |
| ....Lanzo Massif | |
| SN | NW of Turin in Piemonte. |
| Laos | |
|---|---|
| BT | Asia |
| .Far East | |
| ..Laos | |
| RT | Indochina |
| Lapeer County Michigan | |
|---|---|
| BT | United States |
| .Michigan | |
| ..Michigan Lower Peninsula | |
| ...Lapeer County Michigan | |
| lapilli | |
|---|---|
| RT | ejecta |
| pyroclastics | |
| volcaniclastics | |
| lapis lazuli | |
|---|---|
| USE | lazurite |
| Laplace azimuths | |
|---|---|
| USE | Laplace transformations |
| Laplace points | |
|---|---|
| USE | Laplace transformations |
| Laplace tidal equation | |
|---|---|
| USE | Laplace transformations |
| Laplace transformations | |
|---|---|
| UF | Laplace azimuths |
| Laplace points | |
| Laplace tidal equation | |
| Laplace transforms | |
| transformations, Laplace | |
| RT | geodesy |
| Laplace transforms | |
|---|---|
| USE | Laplace transformations |
| Lapland | |
|---|---|
| BT | Europe |
| .Lapland | |
| NT | Lapland Finland |
| RT | Russian Federation |
| Finland | |
| Kola Peninsula | |
| Sweden | |
| Finnmark Norway | |
| Norway | |
| Nordland Norway | |
| Vasterbotten Sweden | |
| Norrbotten Sweden | |
| Murmansk Russian Federation | |
| Troms Norway | |
| SN | Region mainly N of the Arctic Circle including the Kola Peninsula of the Russian Federation. Indexed with countries as applicable. For Finland, use Lapland Finland. |
| Lapland Finland | |
|---|---|
| BT | Europe |
| .Western Europe | |
| ..Scandinavia | |
| ...Finland | |
| ....Lapland Finland | |
| BT | Europe |
| .Lapland | |
| ..Lapland Finland | |
| NT | Inari Finland |
| Sodankyla Finland | |
| UF | Lappi Finland |
| SN | Province, N Finland. This term has multiple hierarchies. Added to Thesaurus in 1998. |
| Laporte County Indiana | |
|---|---|
| BT | Indiana |
| .Laporte County Indiana | |
| Lappi Finland | |
|---|---|
| USE | Lapland Finland |
| Laprairie County Quebec | |
|---|---|
| BT | Canada |
| .Eastern Canada | |
| ..Quebec | |
| ...Laprairie County Quebec | |
| Laptev Sea | |
|---|---|
| BT | Arctic Ocean |
| .Laptev Sea | |
| RT | Anabar Bay |
| SN | Along N coast of Siberia between Taymyr Peninsula and New Siberian Islands. |
| Lar | |
|---|---|
| SN | No longer a valid term for GeoRef. Use Lar Iran for the city. Also see Lar Valley. |
| Lar Iran | |
|---|---|
| BT | Asia |
| .Middle East | |
| ..Iran | |
| ...Fars Iran | |
| ....Lar Iran | |
| RT | Lar Valley |
| SN | City in Laristan region, Fars in S Iran. |
| Lar Valley | |
|---|---|
| RT | Elburz |
| Iran | |
| Lar Iran | |
| SN | Valley in N Iran. Indexed with Iran or region as applicable. Added to Thesaurus in 1995. |
| Lara Venezuela | |
|---|---|
| BT | South America |
| .Venezuela | |
| ..Lara Venezuela | |
| SN | State in NW Venezuela. |
| Laramian Orogenic Phase | |
|---|---|
| USE | Laramide Orogeny |
| Laramian Orogeny | |
|---|---|
| USE | Laramide Orogeny |
| Laramic Orogeny | |
|---|---|
| USE | Laramide Orogeny |
| Laramide Orogeny | |
|---|---|
| UF | Laramian Orogenic Phase |
| Laramian Orogeny | |
| Laramic Orogeny | |
| Laramide Revolution | |
| RT | Cretaceous |
| Tertiary | |
| Upper Cretaceous | |
| Paleocene | |
| United States | |
| orogeny | |
| tectonics | |
| Rocky Mountains | |
| Cordilleran Orogeny | |
| SN | A time of deformation typically developed in the eastern Rocky Mountains of the United States, whose several phases extended from Upper Cretaceous until the end of the Paleocene. Before 1978, search orogeny AND Laramide; Laramian. Indexed with ages as app |
| Laramide Revolution | |
|---|---|
| USE | Laramide Orogeny |
| Laramie anorthosite complex | |
|---|---|
| BT | Chronostratigraphic Units |
| .Precambrian | |
| ..Laramie anorthosite complex | |
| RT | Wyoming |
| SN | Added to Thesaurus in 1989. |
| Laramie Basin | |
|---|---|
| BT | United States |
| .Wyoming | |
| ..Laramie Basin | |
| SN | High plateau in SE between Laramie Mountains on E and Medicine Bow Mountains on the W. |
| Laramie County Wyoming | |
|---|---|
| BT | United States |
| .Wyoming | |
| ..Laramie County Wyoming | |
| RT | Silo Field |
| SN | SE Wyoming. |
| Laramie Formation | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Mesozoic | |
| ...Cretaceous | |
| ....Upper Cretaceous | |
| .....Laramie Formation | |
| RT | Wyoming |
| Montana | |
| Colorado | |
| Kansas | |
| Arizona | |
| South Dakota | |
| SN | Overlies Fox Hills Formation; unconformably underlies Denver Formation. Denver Basin region of E Colorado. Also in Arizona, N Colorado, Kansas, Montana, South Dakota and Wyoming. |
| Laramie Mountains | |
|---|---|
| BT | United States |
| .U. S. Rocky Mountains | |
| ..Laramie Mountains | |
| RT | Wyoming |
| Colorado | |
| Front Range | |
| SN | A range of the Rocky Mountains. This term has multiple hierarchies. Indexed with states as applicable. |
| Lardeau Group | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Paleozoic | |
| ...Cambrian | |
| ....Lardeau Group | |
| RT | Precambrian |
| Canada | |
| British Columbia | |
| SN | Includes Triune and Sharon Creek Formations. |
| Larder Lake District Ontario | |
|---|---|
| BT | Canada |
| .Eastern Canada | |
| ..Ontario | |
| ...Larder Lake District Ontario | |
| UF | Larder Lake region |
| RT | gold ores |
| Timiskaming District Ontario | |
| SN | E Ontario. |
| Larder Lake region | |
|---|---|
| USE | Larder Lake District Ontario |
| Larderello | |
|---|---|
| BT | Europe |
| .Southern Europe | |
| ..Italy | |
| ...Tuscany Italy | |
| ....Larderello | |
| UF | Larderello Field |
| Larderello-Travale geothermal field | |
| RT | geothermal fields |
| SN | Geothermal field and geothermal region in central Italy. |
| Larderello Field | |
|---|---|
| USE | Larderello |
| Larderello-Travale geothermal field | |
|---|---|
| USE | Larderello |
| Large Aperture Seismic Array | |
|---|---|
| USE | LASA |
| Largentiere France | |
|---|---|
| BT | Europe |
| .Western Europe | |
| ..France | |
| ...Ardeche France | |
| ....Largentiere France | |
| SN | Village in SE France. |
| Larimer County Colorado | |
|---|---|
| BT | United States |
| .Colorado | |
| ..Larimer County Colorado | |
| NT | Loveland Colorado |
| RT | Rocky Mountain National Park |
| SN | N Colorado. |
| Larix | |
|---|---|
| BT | Plantae |
| .Spermatophyta | |
| ..Gymnospermae | |
| ...Coniferales | |
| ....Pinaceae | |
| .....Larix | |
| SN | Genus. |
| larnite | |
|---|---|
| BT | silicates |
| .orthosilicates | |
| ..nesosilicates | |
| ...larnite | |
| Larue County Kentucky | |
|---|---|
| BT | United States |
| .Kentucky | |
| ..Larue County Kentucky | |
| larvae | |
|---|---|
| RT | ontogeny |
| paleontology | |
| reproduction | |
| SN | Added to Thesaurus in 1985. |
| Larvik Norway | |
|---|---|
| BT | Europe |
| .Western Europe | |
| ..Scandinavia | |
| ...Norway | |
| ....Vestfold Norway | |
| .....Larvik Norway | |
| SN | Town at head of Larvik Fjord near entrance to Oslofjord. |
| Las Animas County Colorado | |
|---|---|
| BT | United States |
| .Colorado | |
| ..Las Animas County Colorado | |
| RT | Spanish Peaks |
| SN | SE Colorado. |
| Las Cruces New Mexico | |
|---|---|
| BT | United States |
| .New Mexico | |
| ..Dona Ana County New Mexico | |
| ...Las Cruces New Mexico | |
| SN | City in Rio Grande Valley, S New Mexico. |
| Las Palmas, Canary Islands | |
|---|---|
| USE | Canary Islands |
| SN | For the Spanish province, use Canary Islands. |
| Las Vegas Nevada | |
|---|---|
| BT | United States |
| .Nevada | |
| ..Clark County Nevada | |
| ...Las Vegas Nevada | |
| SN | City in extreme S Nevada. |
| Las Vegas Valley | |
|---|---|
| BT | United States |
| .Nevada | |
| ..Las Vegas Valley | |
| RT | Clark County Nevada |
| SN | S Nevada. Indexed with counties as applicable. Added to Thesaurus in 1981. |
| Las Villas | |
|---|---|
| SN | No longer a valid term for GeoRef. See Villa Clara Cuba. |
| LASA | |
|---|---|
| UF | Large Aperture Seismic Array |
| RT | Montana |
| arrays | |
| seismic networks | |
| seismographs | |
| SN | Array of seismographs. |
| Lascar | |
|---|---|
| BT | South America |
| .Chile | |
| ..Antofagasta Chile | |
| ...Lascar | |
| RT | volcanoes |
| SN | Volcano, N. Chile. |
| Laser Geodynamics Satellite | |
|---|---|
| USE | Lageos |
| laser methods | |
|---|---|
| NT | lidar methods |
| UF | laser probe |
| probe, laser | |
| RT | spectroscopy |
| chemical analysis | |
| geophysical methods | |
| Doppler effect | |
| analysis | |
| remote sensing | |
| methods | |
| electromagnetic methods | |
| laser ranging | |
| lunar laser ranging | |
| SN | For surveys, also index geophysical surveys. Added to Thesaurus in 1982. |
| laser probe | |
|---|---|
| USE | laser methods |
| laser radar methods | |
|---|---|
| USE | lidar methods |
| laser ranging | |
|---|---|
| RT | analysis |
| geodesy | |
| geophysical methods | |
| geophysical surveys | |
| Lageos | |
| laser methods | |
| lunar laser ranging | |
| methods | |
| remote sensing | |
| satellite methods | |
| spectroscopy | |
| SN | As of 1993, use in combination with satellite methods and/or space shuttle methods. Also see lunar laser ranging. Added to Thesaurus in 1989. |
| Lassen County California | |
|---|---|
| BT | United States |
| .California | |
| ..Lassen County California | |
| RT | Lassen Volcanic National Park |
| SN | NE California. |
| Lassen Peak | |
|---|---|
| BT | United States |
| .California | |
| ..Shasta County California | |
| ...Lassen Peak | |
| UF | Mount Lassen |
| Mt. Lassen | |
| RT | volcanoes |
| SN | Active volcano in Lassen Volcanic National Park in NE California. |
| Lassen Volcanic National Park | |
|---|---|
| BT | United States |
| .California | |
| ..Lassen Volcanic National Park | |
| RT | national parks |
| Lassen County California | |
| Shasta County California | |
| Mill Creek | |
| Plumas County California | |
| Tehama County California | |
| SN | NE California. Indexed with counties as applicable. |
| last glacial maximum | |
|---|---|
| UF | glacial maximum, last |
| pleniglacial, last | |
| RT | Upper Pleistocene |
| glaciation | |
| environmental geology | |
| climate | |
| Quaternary | |
| paleoclimatology | |
| late-glacial environment | |
| glacial environment | |
| SN | Term is often used with paleoclimate studies in which a more specific age term is not available. Indexed with also age and area when possible. Added to Thesaurus in 1995. |
| lat |
|---|
| Latah County Idaho | |
|---|---|
| BT | United States |
| .Idaho | |
| ..Latah County Idaho | |
| SN | N Idaho. |
| Latdorfian | |
|---|---|
| USE | Lattorfian |
| late diagenesis | |
|---|---|
| BT | diagenesis |
| .late diagenesis | |
| RT | burial diagenesis |
| early diagenesis | |
| late-glacial environment | |
|---|---|
| UF | lateglacial environment |
| RT | glacial geology |
| glaciation | |
| depositional environment | |
| Heinrich events | |
| deglaciation | |
| periglacial environment | |
| glacial erosion | |
| glacial sedimentation | |
| interglacial environment | |
| interstadial environment | |
| last glacial maximum | |
| SN | Added to Thesaurus in 1998. |
| late-glacial period | |
|---|---|
| SN | Not a a valid term for GeoRef. In NW Europe, it is usually applied to the upper Weichselian period including Older Dryas, Allerod, and Younger Dryas. In Britain, it is usually considered upper Devensian. Use specific age term. |
| lateglacial environment | |
|---|---|
| USE | late-glacial environment |
| Latemar Massif | |
|---|---|
| BT | Europe |
| .Alps | |
| ..Eastern Alps | |
| ...Dolomites | |
| ....Latemar Massif | |
| BT | Europe |
| .Southern Europe | |
| ..Italy | |
| ...Trentino-Alto Adige Italy | |
| ....Latemar Massif | |
| SN | In Dolomites. This term has multiple hierarchies. |
| lateral faults | |
|---|---|
| BT | faults |
| .lateral faults | |
| NT | left-lateral faults |
| right-lateral faults | |
| SN | Added to Thesaurus in 1989. |
| lateral heterogeneity | |
|---|---|
| RT | mantle |
| upper mantle | |
| velocity structure | |
| SN | Added to Thesaurus in 1989. |
| lateral loading | |
|---|---|
| BT | loading |
| .lateral loading | |
| RT | soil mechanics |
| testing | |
| load tests | |
| engineering properties | |
| SN | Added to Thesaurus in 1989. |
| lateral logging | |
|---|---|
| USE | Laterolog |
| Laterite soils | |
|---|---|
| USE | laterites |
| laterites | |
|---|---|
| BT | soils |
| .laterites | |
| UF | Laterite soils |
| lateritic soils | |
| RT | soil group |
| bauxite | |
| ocher | |
| bauxitization | |
| laterization | |
| biorhexistasy | |
| Latosols | |
| lateritic soils | |
|---|---|
| USE | laterites |
| laterization | |
|---|---|
| RT | bauxitization |
| laterites | |
| mineral deposits, genesis | |
| soils | |
| Laterolog | |
|---|---|
| UF | focused current logging |
| guard log | |
| lateral logging | |
| RT | well-logging |
| electrical logging | |
| resistivity | |
| SN | Added to Thesaurus in 1984. |
| Lathi Formation | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Mesozoic | |
| ...Jurassic | |
| ....Lathi Formation | |
| RT | India |
| Rajasthan India | |
| Latimer County Oklahoma | |
|---|---|
| BT | United States |
| .Oklahoma | |
| ..Latimer County Oklahoma | |
| RT | Ouachita Mountains |
| SN | SE Oklahoma. |
| Latin America | |
|---|---|
| RT | America |
| Central America | |
| South America | |
| SN | Region comprising South America except the Guianas; Central America except Belize; Mexico, Cuba, Puerto Rico, Dominican Republic and some of the islands in the West Indies. Used only when a more specific area term is not given. Added to Thesaurus in 1981. |
| latite | |
|---|---|
| BT | igneous rocks |
| .volcanic rocks | |
| ..trachyandesites | |
| ...latite | |
| RT | quartz latite |
| latitude | |
|---|---|
| RT | altitude |
| climate | |
| geodesy | |
| paleolatitude | |
| SN | Includes latitude effects. Added to Thesaurus in 1993. |
| latitude, paleo- | |
|---|---|
| USE | paleolatitude |
| Latium Italy | |
|---|---|
| BT | Europe |
| .Southern Europe | |
| ..Italy | |
| ...Latium Italy | |
| NT | Alban Hills |
| Frosinone Italy | |
| Rome Italy | |
| Sabatini Mountains | |
| Tolfa Hills | |
| Viterbo Italy | |
| RT | Tiber Valley |
| SN | Autonomous region in W central Italy. |
| Latosols | |
|---|---|
| BT | soils |
| .Latosols | |
| RT | soil group |
| laterites | |
| Latrobe Group | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Cenozoic | |
| ...Paleogene | |
| ....Paleocene | |
| .....Latrobe Group | |
| RT | Australia |
| Victoria Australia | |
| Gippsland Basin | |
| SN | Gippsland Basin of Victoria. Added to Thesaurus in 1989. |
| Latrobe Valley | |
|---|---|
| RT | Gippsland Basin |
| Victoria Australia | |
| SN | Coal mining region in S Victoria. Indexed with Victoria Australia as applicable. Added to Thesaurus in 1989. |
| lattice | |
|---|---|
| UF | Bravais lattice |
| crystal lattice | |
| space lattice | |
| translation lattice | |
| RT | crystal structure |
| crystal systems | |
| cell dimensions | |
| lattice parameters | |
| habit | |
| unit cell | |
| twinning | |
| substitution | |
| lattice constants | |
|---|---|
| USE | lattice parameters |
| lattice par |
|---|
| lattice parameters | |
|---|---|
| UF | lattice constants |
| RT | crystal structure |
| crystallography | |
| cell dimensions | |
| crystal chemistry | |
| lattice | |
| crystal growth | |
| unit cell | |
| SN | Before 1979, also search (lattice OR crystal structure) AND parameters. |
| Lattorfian | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Cenozoic | |
| ...Paleogene | |
| ....Eocene | |
| .....upper Eocene | |
| ......Lattorfian | |
| UF | Latdorfian |
| RT | Krosno Beds |
| Tongrian | |
| Sannoisian | |
| SN | Europe. |
| Latur earthquake 1993 | |
|---|---|
| BT | earthquakes |
| .Latur earthquake 1993 | |
| UF | Killari earthquake 1993 |
| RT | India |
| Maharashtra India | |
| SN | Epicenter near Latur, Maharashtra, central India. |
| Latvia | |
|---|---|
| BT | Europe |
| .Baltic region | |
| ..Latvia | |
| NT | Riga Latvia |
| RT | Baltic Glaciation |
| Baltic Plain | |
| Russian Platform | |
| Baltica | |
| Baltic Shield | |
| Dvina River | |
| Russian Plain | |
| SN | Formerly the Latvian Soviet Socialist Republic. |
| Lau Basin | |
|---|---|
| BT | Pacific Ocean |
| .South Pacific | |
| ..Southeast Pacific | |
| ...Lau Basin | |
| RT | DSDP Site 203 |
| Leg 135 | |
| ODP Site 834 | |
| ODP Site 835 | |
| ODP Site 836 | |
| ODP Site 837 | |
| ODP Site 838 | |
| ODP Site 839 | |
| SN | West of the Tonga Islands and S of the Lau group of the Fiji Islands. This term has multiple hierarchies. |
| Lauderdale County Alabama | |
|---|---|
| BT | United States |
| .Alabama | |
| ..Lauderdale County Alabama | |
| SN | Extreme NW Alabama. |
| Lauderdale County Mississippi | |
|---|---|
| BT | United States |
| .Mississippi | |
| ..Lauderdale County Mississippi | |
| SN | E Mississippi. |
| Lauderdale County Tennessee | |
|---|---|
| BT | United States |
| .Tennessee | |
| ..Lauderdale County Tennessee | |
| SN | W Tennessee. |
| laughing gas | |
|---|---|
| USE | nitrous oxide |
| laumonite | |
|---|---|
| USE | laumontite |
| laumontite | |
|---|---|
| BT | silicates |
| .framework silicates | |
| ..zeolite group | |
| ...laumontite | |
| UF | laumonite |
| lomonite | |
| lomontite | |
| RT | leonhardite |
| Lauraceae | |
|---|---|
| BT | Plantae |
| .Spermatophyta | |
| ..Angiospermae | |
| ...Dicotyledoneae | |
| ....Lauraceae | |
| SN | Family. |
| Laurasia | |
|---|---|
| RT | continental drift |
| Eurasia | |
| Gondwana | |
| Laurentia | |
| Northern Hemisphere | |
| Pangaea | |
| supercontinents | |
| SN | The protocontinent of the Northern Hemisphere which is a combination of Laurentia and Eurasia. It included most of North America, Greenland, and much of Eurasia excluding India. |
| Laurel County Kentucky | |
|---|---|
| BT | United States |
| .Kentucky | |
| ..Laurel County Kentucky | |
| Laurens County Georgia | |
|---|---|
| BT | United States |
| .Georgia | |
| ..Laurens County Georgia | |
| Laurens County South Carolina | |
|---|---|
| BT | United States |
| .South Carolina | |
| ..Laurens County South Carolina | |
| Laurentia | |
|---|---|
| RT | Atlantic region |
| Baltica | |
| Canadian Shield | |
| continental drift | |
| Greenland | |
| Laurasia | |
| North America | |
| plate tectonics | |
| Scotland | |
| supercontinents | |
| SN | Ancient continent which formed in the early Proterozoic. It preceeded Laurasia. Included much of the Canadian Shield and Greenland and NW Scotland. Indexed with countries and continents as applicable. Added to Thesaurus in 1993. |
| Laurentian Highlands | |
|---|---|
| SN | Not a valid term for GeoRef. Use Canadian Shield or, for the mountains of S Quebec, use Laurentian Mountains as applicable. |
| Laurentian Plateau | |
|---|---|
| USE | Canadian Shield |
| Laurentide ice sheet | |
|---|---|
| RT | Des Moines Lobe |
| Lake Michigan Lobe | |
| Saint Lawrence Lowlands | |
| Saint Lawrence Valley | |
| Laurion Greece | |
|---|---|
| BT | Europe |
| .Southern Europe | |
| ..Greece | |
| ...Sterea Ellas | |
| ....Laurion Greece | |
| UF | Laurium Greece |
| Lavrion Greece | |
| SN | City SE of Athens. |
| Laurium Greece | |
|---|---|
| USE | Laurion Greece |
| Laurussia | |
|---|---|
| RT | Baltic region |
| Canadian Shield | |
| continental drift | |
| Europe | |
| North America | |
| Russian Platform | |
| SN | Large landmass thought to have formed from merger of Baltica and Laurentia in mid-Paleozoic and to have become part of Laurasia in late Paleozoic. Indexed with countries and continents as applicable. |
| Lausitz | |
|---|---|
| USE | Lusatia |
| lava | |
|---|---|
| NT | aa lava |
| pahoehoe | |
| pillow lava | |
| RT | basalts |
| effusion | |
| eruptions | |
| extrusive rocks | |
| flow mechanism | |
| igneous rocks | |
| inclusions | |
| lava channels | |
| lava fields | |
| lava flows | |
| lava lakes | |
| lava tubes | |
| magmas | |
| mud volcanoes | |
| paleomagnetism | |
| peperite | |
| perlite | |
| petrology | |
| phreatomagmatism | |
| pillow structure | |
| plugs | |
| vesicular | |
| SN | Used for all molten extrusives and the rocks that solidify from them. |
| lava channels | |
|---|---|
| BT | volcanic features |
| .lava channels | |
| RT | lava |
| geomorphology | |
| channels | |
| lava domes | |
|---|---|
| USE | shield volcanoes |
| lava fields | |
|---|---|
| BT | volcanic features |
| .lava fields | |
| UF | fields, lava |
| RT | lava |
| geomorphology | |
| volcanic fields | |
| lava flows | |
|---|---|
| UF | flow (volcanic) |
| nappe (volcanic) | |
| RT | lava |
| volcanology | |
| flow texture | |
| flows | |
| basalt flows | |
| flood basalts | |
| volcanic features | |
| effusion | |
| flow mechanism | |
| lahars | |
| lava tubes | |
| SN | Also search specific types, such as basalt flows or rhyolite flows as applicable. |
| lava lakes | |
|---|---|
| RT | crater lakes |
| geomorphology | |
| lakes | |
| lava | |
| volcanic features | |
| lava tubes | |
|---|---|
| BT | volcanic features |
| .lava tubes | |
| UF | lava tunnels |
| tubes, lava | |
| RT | lava |
| geomorphology | |
| lava flows | |
| speleology | |
| lava tunnels | |
|---|---|
| USE | lava tubes |
| Lavaca County Texas | |
|---|---|
| BT | United States |
| .Texas | |
| ..Lavaca County Texas | |
| SN | SE Texas. |
| Laval Basin | |
|---|---|
| BT | Europe |
| .Western Europe | |
| ..France | |
| ...Laval Basin | |
| Lavery Till | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Cenozoic | |
| ...Quarternary | |
| ....Pleistocene | |
| .....Upper Pleistocene | |
| ......Wisconsinan | |
| .......Lavery Till | |
| RT | Pennsylvania |
| SN | NW Pennsylvania. Added to Thesaurus in 1985. |
| Lavinia Planitia | |
|---|---|
| BT | Venus |
| .Lavinia Planitia | |
| SN | Lowland. |
| Lavrion Greece | |
|---|---|
| USE | Laurion Greece |
| Lawrence County Alabama | |
|---|---|
| BT | United States |
| .Alabama | |
| ..Lawrence County Alabama | |
| SN | NW Alabama. |
| Lawrence County Arkansas | |
|---|---|
| BT | United States |
| .Arkansas | |
| ..Lawrence County Arkansas | |
| SN | NE Arkansas. |
| Lawrence County Illinois | |
|---|---|
| BT | United States |
| .Illinois | |
| ..Lawrence County Illinois | |
| SN | Bounded by Wabash River in SE Illinois. |
| Lawrence County Indiana | |
|---|---|
| BT | Indiana |
| .Lawrence County Indiana | |
| SN | S Indiana. |
| Lawrence County Kentucky | |
|---|---|
| BT | United States |
| .Kentucky | |
| ..Lawrence County Kentucky | |
| SN | NE Kentucky. |
| Lawrence County Mississippi | |
|---|---|
| BT | United States |
| .Mississippi | |
| ..Lawrence County Mississippi | |
| SN | S central Mississippi. |
| Lawrence County Missouri | |
|---|---|
| BT | United States |
| .Missouri | |
| ..Lawrence County Missouri | |
| SN | SW Missouri. |
| Lawrence County Ohio | |
|---|---|
| BT | United States |
| .Ohio | |
| ..Lawrence County Ohio | |
| SN | S Ohio. |
| Lawrence County Pennsylvania | |
|---|---|
| BT | United States |
| .Pennsylvania | |
| ..Lawrence County Pennsylvania | |
| SN | W Pennsylvania. |
| Lawrence County South Dakota | |
|---|---|
| BT | United States |
| .South Dakota | |
| ..Lawrence County South Dakota | |
| RT | Black Hills |
| Whitewood Creek | |
| Homestake Mine | |
| SN | W South Dakota. |
| Lawrence County Tennessee | |
|---|---|
| BT | United States |
| .Tennessee | |
| ..Lawrence County Tennessee | |
| SN | S Tennesse. |
| Lawrence Formation | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Paleozoic | |
| ...Carboniferous | |
| ....Pennsylvanian | |
| .....Upper Pennsylvanian | |
| ......Virgilian | |
| .......Lawrence Formation | |
| RT | Iowa |
| Missouri | |
| Nebraska | |
| Kansas | |
| Douglas Group | |
| SN | Includes two unnamed shale members separated by Amazonia Limestone Member, Ireland Limestone Member. SW Iowa, E Kansas, NW Missouri, and SE Nebraska. |
| Lawrence Livermore National Laboratory | |
|---|---|
| BT | United States |
| .California | |
| ..Alameda County California | |
| ...Lawrence Livermore National Laboratory | |
| RT | Livermore California |
| SN | Near Livermore, E of San Francisco Bay, Central California. |
| lawrencium | |
|---|---|
| BT | metals |
| .actinides | |
| ..lawrencium | |
| UF | Lr |
| SN | Chemical element. |
| laws | |
|---|---|
| SN | Not a valid term for GeoRef. As of 1993, use legislation or principles as applicable. |
| lawsonite | |
|---|---|
| BT | silicates |
| .orthosilicates | |
| ..sorosilicates | |
| ...lawsonite | |
| RT | aluminosilicates |
| Laxfordian | |
|---|---|
| BT | Chronostratigraphic Units |
| .Precambrian | |
| ..Proterozoic | |
| ...Mesoproterozoic | |
| ....Laxfordian | |
| SN | Europe. |
| layer, active | |
|---|---|
| USE | active layer |
| layer, basaltic | |
|---|---|
| USE | basaltic layer |
| layer, boundary | |
|---|---|
| USE | boundary layer |
| layer, granitic | |
|---|---|
| USE | granitic layer |
| layer, nepheloid | |
|---|---|
| USE | nepheloid layer |
| layered | |
|---|---|
| SN | A valid index term through 1977. After 1977, use layered intrusions, layered materials, or multiple aquifers. |
| layered intrusions | |
|---|---|
| BT | intrusions |
| .layered intrusions | |
| RT | igneous rocks |
| magma contamination | |
| SN | Not a valid term from 1975-1977. Before 1978, also search intrusions AND layered. |
| layered materials | |
|---|---|
| UF | layered media |
| multilayered materials | |
| RT | materials |
| engineering geology | |
| transverse isotropy | |
| multiple aquifers | |
| delamination | |
| stratification | |
| preferential flow | |
| mineral interlayer | |
| two-layer models | |
| SN | Before 1981, also search layered; layers. After 1992, use multiple aquifers for aquifers. Added to Thesaurus in 1981. |
| layered media | |
|---|---|
| USE | layered materials |
| layers | |
|---|---|
| SN | A valid term through 1978. See layered materials. |
| lazulite | |
|---|---|
| BT | phosphates |
| .lazulite | |
| lazurite | |
|---|---|
| BT | sulfides |
| .lazurite | |
| BT | sulfates |
| .lazurite | |
| BT | silicates |
| .framework silicates | |
| ..sodalite group | |
| ...lazurite | |
| UF | lapis lazuli |
| RT | gems |
| SN | This term has multiple hierarchies. |
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