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ROCHE MELANOCRATE [3 records]
Record 1 - internal organization data 2017-05-09
Record 1, English
Record 1, Subject field(s)
- Geology
- Petrography
Record 1, Main entry term, English
- mesocratic
1, record 1, English, mesocratic
correct, adjective
Record 1, Abbreviations, English
Record 1, Synonyms, English
- mesotype 2, record 1, English, mesotype
correct, adjective
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
Composed of almost equal amounts of light and dark constituents; applied to igneous rocks intermediate in color between leucocratic and melanocratic, and containing 30% to about 65% of mafic minerals. 3, record 1, English, - mesocratic
Record number: 1, Textual support number: 1 OBS
mesotype: Proposed by Shand in place of mesocratic to indicate igneous rocks containing between 30 and 60 percent dark minerals. 2, record 1, English, - mesocratic
Record 1, French
Record 1, Domaine(s)
- Géologie
- Pétrographie
Record 1, Main entry term, French
- mésocrate
1, record 1, French, m%C3%A9socrate
correct, adjective
Record 1, Abbreviations, French
Record 1, Synonyms, French
- mésotype 2, record 1, French, m%C3%A9sotype
adjective
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
S’applique aux roches magmatiques contenant des pourcentages voisins de minéraux blancs (quartz, feldspaths) et noirs (minéraux ferromagnésiens). 3, record 1, French, - m%C3%A9socrate
Record number: 1, Textual support number: 1 CONT
La proportion des minéraux foncés, facilement appréciable au simple coup d’œil, fournit une classification abrégée [des roches ignées], mais évidemment moins précise. On distingue les groupes suivants: [...] Roches mésocrates 35 à 65 [% de minéraux foncés.] 4, record 1, French, - m%C3%A9socrate
Record number: 1, Textual support number: 2 CONT
Roches mésocrates : 37,5 à 62,5 % de ferromagnésiens. 5, record 1, French, - m%C3%A9socrate
Record number: 1, Textual support number: 3 CONT
[Si les minéraux foncés] occupent moins du vingtième de la roche, elle est dite hololeucocrate; du vingtième au tiers, leucocrate; du tiers aux deux tiers, mésocrate; plus des deux tiers, mélanocrate; plus des dix-neuf vingtièmes, holomélanocrate. 6, record 1, French, - m%C3%A9socrate
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2012-03-06
Record 2, English
Record 2, Subject field(s)
- Petrography
Record 2, Main entry term, English
- melanocratic rock
1, record 2, English, melanocratic%20rock
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
A dark-colored rock containing 60-90% dark minerals. 2, record 2, English, - melanocratic%20rock
Record 2, French
Record 2, Domaine(s)
- Pétrographie
Record 2, Main entry term, French
- roche mélanocrate
1, record 2, French, roche%20m%C3%A9lanocrate
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
[...] roche endogène où les minéraux foncés (amphibole, pyroxène, péridot, etc.) occupent plus des deux tiers de la surface [et dont la] teinte générale est foncée. 2, record 2, French, - roche%20m%C3%A9lanocrate
Record number: 2, Textual support number: 1 CONT
[...] roches mélanocrates : 62,5 à 87,5 % de ferromagnésiens. 3, record 2, French, - roche%20m%C3%A9lanocrate
Record number: 2, Textual support number: 2 CONT
[...] les appareils alcalins annulaires [...] sont constitués de roches leucocrates à mélanocrates, acides à ultrabasiques [...] 4, record 2, French, - roche%20m%C3%A9lanocrate
Record number: 2, Textual support number: 3 CONT
granite :Roche alumino-potassique riche en éléments blancs(roche leucocrate) ;péridodite :roche ferro-magnésienne riche en éléments colorés(roche mélanocrate). 5, record 2, French, - roche%20m%C3%A9lanocrate
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2011-01-13
Record 3, English
Record 3, Subject field(s)
- Petrography
- Geochemistry
Record 3, Main entry term, English
- ultrabasic rock
1, record 3, English, ultrabasic%20rock
correct, see observation
Record 3, Abbreviations, English
Record 3, Synonyms, English
- ultrabasite 2, record 3, English, ultrabasite
correct
- ultramafic rock 3, record 3, English, ultramafic%20rock
correct, see observation
- ultra-mafic rock 4, record 3, English, ultra%2Dmafic%20rock
correct
- ultramafics 5, record 3, English, ultramafics
correct, see observation, plural
- ultramafite 6, record 3, English, ultramafite
correct
Record 3, Textual support, English
Record number: 3, Textual support number: 1 DEF
[An] igneous rock consisting essentially of ferromagnesian minerals to the virtual exclusion of quartz, feldspar, and feldspathoids. 7, record 3, English, - ultrabasic%20rock
Record number: 3, Textual support number: 1 CONT
Economic deposits of the mineral chromite are almost universally associated with mafic or ultra-mafic rocks. 4, record 3, English, - ultrabasic%20rock
Record number: 3, Textual support number: 1 OBS
Originally defined as rocks containing less than 45% silica, this artificial boundary has now been abandoned as a result of the recognition of many rock types which while undoubtedly ultrabasic by other tests, contain more than 45% silica ... 7, record 3, English, - ultrabasic%20rock
Record number: 3, Textual support number: 2 OBS
According to the source MROCK, 1985 (Richard Scott Mitchell, Dictionary of Rocks), the terms "ultramafic rock" and "ultrabasic rock" are nearly synonymous. They differ in that ultrabasic rocks contain little or no feldspar while ultramafic rocks contain no feldspar. 8, record 3, English, - ultrabasic%20rock
Record number: 3, Textual support number: 3 OBS
As a noun, the term "ultramafic" is used in the plural. 8, record 3, English, - ultrabasic%20rock
Record number: 3, Textual support number: 4 OBS
ultramafics: term used at Natural Resources Canada - Earth Sciences Sector. 8, record 3, English, - ultrabasic%20rock
Record 3, Key term(s)
- ultra-basic rock
- ultra basic rock
- ultra mafic rock
- ultra-basite
- ultra basite
- ultra-mafite
- ultra mafite
- ultra-mafics
- ultra mafics
Record 3, French
Record 3, Domaine(s)
- Pétrographie
- Géochimie
Record 3, Main entry term, French
- roche ultrabasique
1, record 3, French, roche%20ultrabasique
correct, feminine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
- roche ultra-basique 2, record 3, French, roche%20ultra%2Dbasique
correct, feminine noun
- ultrabasite 3, record 3, French, ultrabasite
correct, feminine noun
- roche ultramafique 4, record 3, French, roche%20ultramafique
correct, feminine noun
- ultramafite 5, record 3, French, ultramafite
correct, feminine noun
- ultramafitite 6, record 3, French, ultramafitite
correct, feminine noun
Record 3, Textual support, French
Record number: 3, Textual support number: 1 DEF
Roche magmatique mélanocrate à holomélanocrate pauvre en silice(SiO2 <45 %) et riche en calcium, fer et magnésium, constituée essentiellement d’un ou plusieurs minéraux ferromagnésiens(péridot, pyroxène, amphibole). 7, record 3, French, - roche%20ultrabasique
Record number: 3, Textual support number: 1 OBS
La notion d’acidité, quelque peu ambiguë pour les roches, a été introduite au milieu du siècle dernier par Élie de Beaumont qui, en fonction de la teneur en SiO2, distingue les roches acides [plus de 65 %], les roches intermédiaires [entre 52 et 65 %], les roches basiques [entre 45 et 52 %] et les roches ultra-basiques [moins de 45 %]. 8, record 3, French, - roche%20ultrabasique
Record number: 3, Textual support number: 2 OBS
ultramafite : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre. 9, record 3, French, - roche%20ultrabasique
Record 3, Key term(s)
- roche ultra basique
- ultra-basite
- ultra basite
- roche ultra-mafique
- roche ultra mafique
- ultra-mafite
- ultra mafite
- ultra-mafitite
- ultra mafitite
Record 3, Spanish
Record 3, Campo(s) temático(s)
- Petrografía
- Geoquímica
Record 3, Main entry term, Spanish
- ultrabasita
1, record 3, Spanish, ultrabasita
feminine noun
Record 3, Abbreviations, Spanish
Record 3, Synonyms, Spanish
- roca ultrabásica 1, record 3, Spanish, roca%20ultrab%C3%A1sica
feminine noun
Record 3, Textual support, Spanish
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