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LOW-VELOCITY ZONE [2 records]
Record 1 - internal organization data 2002-04-22
Record 1, English
Record 1, Subject field(s)
- Vulcanology and Seismology
- Geophysics
Record 1, Main entry term, English
- low-velocity zone
1, record 1, English, low%2Dvelocity%20zone
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- low-velocity layer 2, record 1, English, low%2Dvelocity%20layer
correct
- weathered layer 3, record 1, English, weathered%20layer
correct
- weathered zone 4, record 1, English, weathered%20zone
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
In seismology, that zone of the earth that is immediately below the surface, characterized by low seismic-wave velocities. 3, record 1, English, - low%2Dvelocity%20zone
Record 1, French
Record 1, Domaine(s)
- Volcanologie et sismologie
- Géophysique
Record 1, Main entry term, French
- zone de faible vitesse
1, record 1, French, zone%20de%20faible%20vitesse
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- zone à faible vitesse 2, record 1, French, zone%20%C3%A0%20faible%20vitesse
feminine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Zone de transition située entre l'asthénosphère et la lithosphère. 3, record 1, French, - zone%20de%20faible%20vitesse
Record number: 1, Textual support number: 1 CONT
Du point de vue géodynamique, l'ensemble des plaques océaniques et continentales forme la lithosphère dont l'épaisseur varie de 50 à 150 kilomètres. Cette couche est séparée d'une couche plus profonde, appelée asthénosphère, par une zone de transition, la «zone de faible vitesse». Dans cette zone, les ondes sismiques sont atténuées. 4, record 1, French, - zone%20de%20faible%20vitesse
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Vulcanología y sismología
- Geofísica
Record 1, Main entry term, Spanish
- zona de velocidad lenta
1, record 1, Spanish, zona%20de%20velocidad%20lenta
feminine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 1978-06-28
Record 2, English
Record 2, Subject field(s)
- Vulcanology and Seismology
- Geophysics
Record 2, Main entry term, English
- low-velocity zone
1, record 2, English, low%2Dvelocity%20zone
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
- low-velocity layer 2, record 2, English, low%2Dvelocity%20layer
correct
- Gutenburg low-velocity zone 1, record 2, English, Gutenburg%20low%2Dvelocity%20zone
correct
- B layer 1, record 2, English, B%20layer
correct
Record 2, Textual support, English
Record number: 2, Textual support number: 1 OBS
Specifically, the zone in the upper mantle, variously defined as from 60 to 250 km in depth, in which velocities are about 6% lower than in the outermost mantle. It is probably caused by the near-melting-point temperature of the material. 1, record 2, English, - low%2Dvelocity%20zone
Record 2, French
Record 2, Domaine(s)
- Volcanologie et sismologie
- Géophysique
Record 2, Main entry term, French
- couche faible vitesse 1, record 2, French, couche%20faible%20vitesse
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 OBS
Une couche faible vitesse située dans le manteau sup. (...) 1, record 2, French, - couche%20faible%20vitesse
Record 2, Spanish
Record 2, Textual support, Spanish
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