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ULTRABASIC [1 record]
Record 1 - internal organization data 2015-04-08
Record 1, English
Record 1, Subject field(s)
- Petrography
- Geochemistry
Record 1, Main entry term, English
- ultramafic
1, record 1, English, ultramafic
correct, see observation, adjective
Record 1, Abbreviations, English
Record 1, Synonyms, English
- ultrabasic 2, record 1, English, ultrabasic
correct, see observation, adjective
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
For igneous rocks composed for the most part of mafic minerals (amphibole, pyroxene, olivine), with accessories and little or no feldspar. 3, record 1, English, - ultramafic
Record number: 1, Textual support number: 1 OBS
ultramafic: ... Now often preferred to "ultrabasic," to which it corresponds, as more directly describing the mineral content. 3, record 1, English, - ultramafic
Record number: 1, Textual support number: 2 OBS
The term [ultrabasic] is frequently used interchangeably with ultramafic. Although most ultrabasic rocks are also ultramafic, there are some exceptions; e.g. monomineralic rocks composed of pyroxenes are ultramafic but are not ultrabasic because of their high SiO2 content. 4, record 1, English, - ultramafic
Record 1, French
Record 1, Domaine(s)
- Pétrographie
- Géochimie
Record 1, Main entry term, French
- ultramafique
1, record 1, French, ultramafique
correct, adjective
Record 1, Abbreviations, French
Record 1, Synonyms, French
- ultrabasique 2, record 1, French, ultrabasique
correct, adjective
- ultra-basique 3, record 1, French, ultra%2Dbasique
correct, adjective
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
[Qualifie une roche] comportant une forte proportion de fer et de magnésium. 4, record 1, French, - ultramafique
Record number: 1, Textual support number: 1 CONT
Le nickel se concentre avec un facteur pouvant dépasser 10 à partir de la roche-mère ultrabasique dont les teneurs sont de l'ordre de 0,30 %. On aboutit ainsi aux gîtes de nickel latéritiques. 5, record 1, French, - ultramafique
Record number: 1, Textual support number: 1 OBS
Le terme «ultrabasique» fait référence à la faible proportion de silice contenue dans les nodules. Les auteurs anglo-saxons, quant à eux, qualifient plutôt les nodules d'«ultramafiques» ce qui fait référence à leur forte proportion de fer et de magnésium, en pratique les deux qualificatifs recouvrent généralement la même réalité. 4, record 1, French, - ultramafique
Record number: 1, Textual support number: 1 PHR
Complexe ultrabasique. 5, record 1, French, - ultramafique
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Petrografía
- Geoquímica
Record 1, Main entry term, Spanish
- ultramáfico
1, record 1, Spanish, ultram%C3%A1fico
adjective
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
- ultrabásico 2, record 1, Spanish, ultrab%C3%A1sico
adjective
Record 1, Textual support, Spanish
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