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MIDOCEANIC RIDGE [1 record]
Record 1 - internal organization data 2011-07-13
Record 1, English
Record 1, Subject field(s)
- Plate Tectonics
- Vulcanology and Seismology
Record 1, Main entry term, English
- mid-oceanic ridge
1, record 1, English, mid%2Doceanic%20ridge
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- mid-ocean ridge 2, record 1, English, mid%2Docean%20ridge
correct
- midoceanic ridge 3, record 1, English, midoceanic%20ridge
correct
- oceanic ridge 4, record 1, English, oceanic%20ridge
correct
- oceanic spreading ridge 5, record 1, English, oceanic%20spreading%20ridge
correct
- midocean ridge 6, record 1, English, midocean%20ridge
correct
- ridge 7, record 1, English, ridge
correct, noun
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
... an underwater mountain range, typically having a valley known as a rift running along its axis, formed by plate tectonics. 8, record 1, English, - mid%2Doceanic%20ridge
Record number: 1, Textual support number: 1 CONT
The ocean basins are characterized by a central ridge structure that divides the basin about in half. This midoceanic ridge consists of submarine hills that rise gradually to a rugged central zone. Precisely in the center of the ridge, at its highest point, is the axial rift, which is a narrow, trench-like feature. The location and form of this rift suggest that the crust is being pulled apart along the line of the rift. The midoceanic ridge and its principal branches can be traced through the ocean basins for a total distance of about 60,000 km (about 37,000 mi). 9, record 1, English, - mid%2Doceanic%20ridge
Record number: 1, Textual support number: 2 CONT
The space between these diverging plates is filled with molten rocks (magma) from below. Contact with seawater cools the magma, which quickly solidifies, forming new oceanic lithosphere. This continuous process, operating over millions of years, builds a chain of submarine volcanoes and rift valleys called a mid-ocean ridge or an oceanic spreading ridge. 10, record 1, English, - mid%2Doceanic%20ridge
Record 1, French
Record 1, Domaine(s)
- Tectonique des plaques
- Volcanologie et sismologie
Record 1, Main entry term, French
- dorsale océanique
1, record 1, French, dorsale%20oc%C3%A9anique
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- dorsale médio-océanique 2, record 1, French, dorsale%20m%C3%A9dio%2Doc%C3%A9anique
correct, feminine noun
- dorsale 3, record 1, French, dorsale
correct, feminine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Chaîne de montagnes océaniques qui correspond à la distension de deux plaques océaniques surmontées d'un rift. 4, record 1, French, - dorsale%20oc%C3%A9anique
Record number: 1, Textual support number: 1 OBS
Les dorsales océaniques forment le relief le plus important de la planète. Leur longeur totale est d'environ 64 000 km. 5, record 1, French, - dorsale%20oc%C3%A9anique
Record number: 1, Textual support number: 1 CONT
Zones de divergence, les dorsales sont le siège de séismes peu profonds (foyers à moins de 70 km) causés par des contraintes de tension générées par l’écartement des deux plaques. C’est le long des zones axiales effondrées que se mettent en place les magmas nouveaux, de nature tholéiitique, et que s’opère l’ouverture de l’écorce. 5, record 1, French, - dorsale%20oc%C3%A9anique
Record 1, Key term(s)
- dorsale médioocéanique
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Tectónica de placas
- Vulcanología y sismología
Record 1, Main entry term, Spanish
- dorsal oceánica
1, record 1, Spanish, dorsal%20oce%C3%A1nica
correct, feminine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
- dorsal centrooceánica 2, record 1, Spanish, dorsal%20centrooce%C3%A1nica
correct, feminine noun
- dorsal medioceánica 3, record 1, Spanish, dorsal%20medioce%C3%A1nica
correct, feminine noun
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 DEF
Cordillera submarina que divide las cuencas oceánicas. 3, record 1, Spanish, - dorsal%20oce%C3%A1nica
Record number: 1, Textual support number: 1 CONT
En cada océano la cuenca [oceánica] suele hallarse subdividida en dos o más partes por la dorsal oceánica. 3, record 1, Spanish, - dorsal%20oce%C3%A1nica
Record number: 1, Textual support number: 2 CONT
La dorsal medioceánica es una larguísima cordillera que se yergue en la parte media del fondo de los océanos, dividiendo así su cuenca en dos. Parte del océano Ártico, pasa entre Groenlandia y Noruega y luego entre las Américas, por una parte, y Europa y África por la otra; contornea África, pasa por la Antártida, Asia, Australia y, desde el sur del Pacífico, sube hasta el hemisferio boreal donde toca, al fin, tangencialmente, las costas occidentales de América del Norte. 3, record 1, Spanish, - dorsal%20oce%C3%A1nica
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