Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
Eu  | |
|---|---|
| USE | europium |
| Eua Island | |
|---|---|
| BT | Oceania |
| .Polynesia | |
| ..Tonga | |
| ...Eua Island | |
| SN | One of the Tongapu group in S Tonga. Also search Eua. |
| Euboea | |
|---|---|
| BT | Europe |
| .Southern Europe | |
| ..Greece | |
| ...Euboea | |
| UF | Evvoia |
| SN | Island in the Aegean Sea. |
| Eubradyodonti | |
|---|---|
| BT | Chordata |
| .Vertebrata | |
| ..Pisces | |
| ...Chondrichthyes | |
| ....Eubradyodonti | |
| eucaryotes | |
|---|---|
| USE | eukaryotes |
| Eucla Basin | |
|---|---|
| BT | Australasia |
| .Australia | |
| ..Eucla Basin | |
| RT | South Australia |
| Western Australia | |
| SN | Also search Eucla. Indexed with states as applicable. |
| euclase | |
|---|---|
| BT | silicates |
| .orthosilicates | |
| ..nesosilicates | |
| ...euclase | |
| RT | aluminosilicates |
| eucrite | |
|---|---|
| BT | meteorites |
| .stony meteorites | |
| ..achondrites | |
| ...eucrite | |
| NT | Juvinas Meteorite |
| Moore County Meteorite | |
| Pasamonte Meteorite | |
| SN | Before 1993, search eucrite with gabbros for the igneous rocks. As of 1993, term is restricted to meteorites. |
| eucryptite | |
|---|---|
| BT | silicates |
| .orthosilicates | |
| ..nesosilicates | |
| ...eucryptite | |
| RT | aluminosilicates |
| eudialite | |
|---|---|
| USE | eudialyte |
| eudialyte | |
|---|---|
| BT | silicates |
| .ring silicates | |
| ..eudialyte | |
| BT | halides |
| .chlorides | |
| ..eudialyte | |
| UF | eudialite |
| SN | This term has multiple hierarchies. |
| Euelephantoidea | |
|---|---|
| USE | Elephantoidea |
| Eug |
|---|
| Euganean Hills | |
|---|---|
| BT | Europe |
| .Southern Europe | |
| ..Italy | |
| ...Veneto Italy | |
| ....Euganean Hills | |
| SN | Range of hills in Padova Province, NE Italy. |
| Eugene Island | |
|---|---|
| RT | Cameron Parish Louisiana |
| Eugene Island Block 330 Field | |
| Gulf of Mexico | |
| Louisiana | |
| Saint Mary Parish Louisiana | |
| SN | Offshore Louisiana. One island is in Cameron Parish, SW Louisiana; another in Saint Mary Parish, south-central Louisiana. Term is frequently used to refer to large petroleum-producing area offshore Saint Mary and Terrebonne parishes. May occur in other lo |
| Eugene Island 330 Field | |
|---|---|
| USE | Eugene Island Block 330 Field |
| Eugene Island Block 330 Field | |
|---|---|
| BT | Atlantic Ocean |
| .North Atlantic | |
| ..Gulf of Mexico | |
| ...Eugene Island Block 330 Field | |
| UF | Eugene Island 330 Field |
| RT | oil and gas fields |
| Louisiana | |
| Eugene Island | |
| giant fields | |
| SN | About 100 miles offshore Louisiana. |
| eugeosynclines | |
|---|---|
| UF | pliomagmatic zone |
| RT | tectonics |
| geosynclines | |
| miogeosynclines | |
| eukaryotes | |
|---|---|
| UF | eucaryotes |
| RT | biologic evolution |
| paleontology | |
| Invertebrata | |
| Plantae | |
| prokaryotes | |
| SN | Also search eukaryotic taxa. |
| Eulengebirge | |
|---|---|
| USE | Sowie Mountains |
| eulite | |
|---|---|
| USE | ferrosilite |
| eulysite | |
|---|---|
| BT | igneous rocks |
| .plutonic rocks | |
| ..ultramafics | |
| ...eulysite | |
| RT | peridotites |
| ferrosilite | |
| SN | As of 1993, this term is considered obsolete. For the mineral, use ferrosilite. |
| Euphorbiaceae | |
|---|---|
| BT | Plantae |
| .Spermatophyta | |
| ..Angiospermae | |
| ...Dicotyledoneae | |
| ....Euphorbiaceae | |
| SN | Family. |
| Euphrates River | |
|---|---|
| BT | Asia |
| .Euphrates River | |
| RT | Turkey |
| Iraq | |
| Syria | |
| SN | Rises in E central Turkey and at its confluence with the Tigris River it forms the Shatt-al-Arab which flows into the Persian Gulf. Indexed with countries as applicable. |
| Eurajoki Finland | |
|---|---|
| BT | Europe |
| .Western Europe | |
| ..Scandinavia | |
| ...Finland | |
| ....Western Finland Province | |
| .....Eurajoki Finland | |
| NT | Olkiluoto |
| SN | Administrative region including the village, SW Finland. Eurajoki may also be used for a nearby river. |
| Eurasia | |
|---|---|
| RT | Asia |
| Black Sea | |
| Black Sea region | |
| Caspian Basin | |
| Eurasian Plate | |
| Europe | |
| Kazakhstan | |
| Kura Lowland | |
| Laurasia | |
| Russian Federation | |
| Urals | |
| SN | Land mass comprising the continents of Europe and Asia. Baltic region was a narrower term from 1981-1992. Before 1981, Black Sea was included as a narrower term. Used for general treatments. Indexed with continents as applicable. |
| Eurasia Basin | |
|---|---|
| BT | Arctic Ocean |
| .Eurasia Basin | |
| UF | Eurasian Basin |
| RT | Mid-Arctic Ocean Ridge |
| SN | Between the North Pole and the major islands lying N of the Eurasian land mass. Sub-basins Fram and Nansen are separated by the Mid-Arctic Ocean Ridge. |
| Eurasian Basin | |
|---|---|
| USE | Eurasia Basin |
| Eurasian Plate | |
|---|---|
| UF | European Plate |
| RT | plate tectonics |
| plates | |
| Yangtze Platform | |
| Eurasia | |
| SN | That part of the Earth's crust comprising Eurasia, including the British Isles. Indexed with geographic area and/or age as applicable. |
| Euratom | |
|---|---|
| UF | European Atomic Energy Community |
| RT | associations |
| Europe | |
| nuclear energy | |
| SN | Added to Thesaurus in 1981. |
| Eure France | |
|---|---|
| BT | Europe |
| .Western Europe | |
| ..France | |
| ...Eure France | |
| RT | Normandy |
| Seine Estuary | |
| Eure Valley | |
| SN | Department in NW France. |
| Eure Valley | |
|---|---|
| BT | Europe |
| .Western Europe | |
| ..France | |
| ...Eure Valley | |
| RT | Eure-et-Loir France |
| Eure France | |
| Orne France | |
| SN | River valley in NW France. Indexed with departments as applicable. |
| Eure-et-Loir France | |
|---|---|
| BT | Europe |
| .Western Europe | |
| ..France | |
| ...Eure-et-Loir France | |
| RT | Beauce |
| Eure Valley | |
| Eureka California | |
|---|---|
| BT | mboldt County California |
| .Eureka California | |
| SN | City on Humboldt Bay in NW California. |
| Eureka County Nevada | |
|---|---|
| BT | United States |
| .Nevada | |
| ..Eureka County Nevada | |
| NT | Eureka Nevada |
| RT | Cortez Mountains |
| Roberts Mountains Allochthon | |
| Roberts Mountains | |
| SN | N central Nevada. |
| Eureka Illinois | |
|---|---|
| BT | United States |
| .Illinois | |
| ..Woodford County Illinois | |
| ...Eureka Illinois | |
| SN | City in N central Illinois. |
| Eureka Kansas | |
|---|---|
| BT | United States |
| .Kansas | |
| ..Greenwood County Kansas | |
| ...Eureka Kansas | |
| SN | City in SE Kansas. |
| Eureka Nevada | |
|---|---|
| BT | United States |
| .Nevada | |
| ..Eureka County Nevada | |
| ...Eureka Nevada | |
| SN | Village in central Nevada. |
| Eureka Quartzite | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Paleozoic | |
| ...Ordovician | |
| ....Eureka Quartzite | |
| RT | Utah |
| California | |
| Nevada | |
| SN | Middle to Upper? Ordovician. N Nevada, E California and NW Utah. Added to Thesaurus in 1985. |
| Eureka S |
|---|
| Eureka Sound Formation | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Mesozoic | |
| ...Cretaceous | |
| ....Eureka Sound Formation | |
| RT | Franklin District Northwest Territories |
| Northwest Territories | |
| Eureka South Dakota | |
|---|---|
| BT | United States |
| .South Dakota | |
| ..McPherson County South Dakota | |
| ...Eureka South Dakota | |
| SN | City in N South Dakota. |
| Eureka Utah | |
|---|---|
| BT | United States |
| .Utah | |
| ..Juab County Utah | |
| ...Eureka Utah | |
| SN | City in W Utah. |
| Europa Satellite | |
|---|---|
| RT | Galilean satellites |
| icy satellites | |
| Jupiter | |
| satellites | |
| Voyager Program | |
| SN | One of the satellites of Jupiter. Before 1985, also search Europa AND Jupiter. Added to Thesaurus in 1985. |
| European Atlantic | |
|---|---|
| SN | Used from 1981-1994 for eastern Atlantic bounded on the south by the Azores-Gibraltar Ridge, on the west by the Mid-Atlantic Ridge, and on the north by the Arctic Ocean. See North Atlantic, East Atlantic. |
| European Atomic Energy Community | |
|---|---|
| USE | Euratom |
| European Community | |
|---|---|
| RT | economics |
| SN | Added to Thesaurus in 1981. |
| European Geotraverse | |
|---|---|
| UF | European Geotraverse Project |
| RT | geophysical methods |
| geophysical surveys | |
| programs | |
| geotraverses | |
| SN | Added to Thesaurus in 1989. |
| European Geotraverse Project | |
|---|---|
| USE | European Geotraverse |
| European Plate | |
|---|---|
| USE | Eurasian Plate |
| European Platform | |
|---|---|
| BT | Europe |
| .European Platform | |
| RT | Russian Federation |
| Germany | |
| Netherlands | |
| Poland | |
| Belgium | |
| Ukraine | |
| Denmark | |
| Belarus | |
| SN | Ancient platform of Precambrian crystalline rocks overlain by sedimentary deposits of the North European Plain extending from the Low Countries to the Urals. Indexed with countries as applicable. |
| European Remote Sensing satellite 1 | |
|---|---|
| USE | ERS-1 |
| European USSR | |
|---|---|
| SN | As of 1993, no longer a valid term for GeoRef. See W Russian Federation (formerly Russian Republic) and individual republics: Armenia, Azerbaijan, Belarus (formerly Byelorussia), Estonia, Georgian Republic, Latvia, Lithuania, Moldova, and Ukraine. Also se |
| europium | |
|---|---|
| BT | metals |
| .rare earths | |
| ..europium | |
| UF | Eu |
| Euryapsida | |
|---|---|
| USE | Diapsida |
| SN | Subclass of Reptilia. Considered obsolete. |
| Eurypterida | |
|---|---|
| BT | Invertebrata |
| .Arthropoda | |
| ..Chelicerata | |
| ...Merostomata | |
| ....Eurypterida | |
| Euselachii | |
|---|---|
| BT | Chordata |
| .Vertebrata | |
| ..Pisces | |
| ...Chondrichthyes | |
| ....Euselachii | |
| eustacy | |
|---|---|
| UF | eustasy |
| RT | isostasy |
| sea-level changes | |
| Fischer plots | |
| epeirogeny | |
| SN | Before 1976, also search eustatism. |
| eustasy | |
|---|---|
| USE | eustacy |
| Eusuchia | |
|---|---|
| USE | Eosuchia |
| Eutaw Formation | |
|---|---|
| BT | Chronostratigraphic Units |
| .Phanerozoic | |
| ..Mesozoic | |
| ...Cretaceous | |
| ....Upper Cretaceous | |
| .....Eutaw Formation | |
| RT | Mississippi |
| Alabama | |
| Georgia | |
| Tennessee | |
| Selma Group | |
| SN | In Selma Group. Alabama, E and N Mississippi, W Georgia and W Tennessee. Added to Thesaurus in 1985. |
| eutrophi |
|---|
| eutrophication | |
|---|---|
| RT | algae |
| anaerobic environment | |
| Dinoflagellata | |
| ecology | |
| hydrogen sulfide | |
| hydrology | |
| lakes | |
| SN | Also index organism such as algae or Dinoflagellata if known. (Note added 1998.) |
| euxenite | |
|---|---|
| BT | oxides |
| .niobates | |
| ..niobotantalates | |
| ...euxenite | |
| SN | This term has multiple hierarchies. |