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The Government of Canada’s terminology and linguistic data bank.
PHYLLIC ALTERATION [3 records]
Record 1 - internal organization data 2007-11-07
Record 1, English
Record 1, Subject field(s)
- Magnetic and Electromagnetic Prospecting
- Geological Research and Exploration
- Aerial-Photography Prospecting
Record 1, Main entry term, English
- magnetic low
1, record 1, English, magnetic%20low
correct, see observation
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
... some deposits are characterized by magnetic lows due to the destruction of magnetite in phyllic alteration zones. 2, record 1, English, - magnetic%20low
Record number: 1, Textual support number: 1 OBS
magnetic low: term used at Natural Resources Canada - Earth Sciences Sector. 3, record 1, English, - magnetic%20low
Record number: 1, Textual support number: 1 PHR
Central magnetic low. 4, record 1, English, - magnetic%20low
Record 1, French
Record 1, Domaine(s)
- Prospection magnétique et électromagnétique
- Recherches et prospections géologiques
- Prospection par photographie aérienne
Record 1, Main entry term, French
- creux magnétique
1, record 1, French, creux%20magn%C3%A9tique
correct, see observation, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Les anomalies magnétiques sont autant les endroits où le champ magnétique est beaucoup plus intense que ceux où il est beaucoup moins intense. Si les roches contiennent beaucoup de minéraux magnétiques [...], une crête magnétique est détectée; un creux magnétique, quant à lui, est associé à des roches qui, contiennent très peu de minéraux magnétiques. 2, record 1, French, - creux%20magn%C3%A9tique
Record number: 1, Textual support number: 2 CONT
[...] certains gîtes sont caractérisés par des creux magnétiques engendrés par la destruction de la magnétite dans les zones d'altération phylliteuse. 3, record 1, French, - creux%20magn%C3%A9tique
Record number: 1, Textual support number: 1 OBS
creux magnétique : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre. 4, record 1, French, - creux%20magn%C3%A9tique
Record number: 1, Textual support number: 1 PHR
Creux magnétique central. 3, record 1, French, - creux%20magn%C3%A9tique
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2001-03-15
Record 2, English
Record 2, Subject field(s)
- Erosion and Weathering (Geol.)
- Geochemistry
Record 2, Main entry term, English
- argillic zone
1, record 2, English, argillic%20zone
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
Argillic zone. This zone is not always present. It is the equivalent of what is called intermediate argillic alteration in other deposits. Clay minerals are prominent with kaolin being dominant nearer the orebody, and montmorillonite further away. ... Mineralization is not commonly found in the argillic zone. 1, record 2, English, - argillic%20zone
Record number: 2, Textual support number: 2 CONT
[Lowell and Guilbert] claimed that generally four alteration zones are present... These zones are frequently used as a guide to ore in exploring porphyry copper deposits. In the Lowell-Guilbert model they are as follows.(a) The potassic zone...(b) The phyllic zone...(c) Argillic zone...(d) Propylitic zone... 1, record 2, English, - argillic%20zone
Record 2, French
Record 2, Domaine(s)
- Érosion et corrosion (Géologie)
- Géochimie
Record 2, Main entry term, French
- zone d'altération argileuse
1, record 2, French, zone%20d%27alt%C3%A9ration%20argileuse
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- zone argilitique 1, record 2, French, zone%20argilitique
feminine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
L'altération hydrothermale est bien développée, avec noyau potassique, puis zone à quartz-séricite-pyrite, puis zone argilitique et halo propylitique, les éléments les plus caractéristiques étant l'intense altération potassique [...] 1, record 2, French, - zone%20d%27alt%C3%A9ration%20argileuse
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2001-02-27
Record 3, English
Record 3, Subject field(s)
- Metals Mining
- Erosion and Weathering (Geol.)
- Geochemistry
Record 3, Main entry term, English
- alteration zoning
1, record 3, English, alteration%20zoning
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 CONT
Alteration zoning. The phyllic and argillic alteration zones are usually absent so that the potassic zone is surrounded by the propylitic zone. This zonal pattern is present in both island arc and continental porphyry copper deposits. 1, record 3, English, - alteration%20zoning
Record 3, French
Record 3, Domaine(s)
- Mines métalliques
- Érosion et corrosion (Géologie)
- Géochimie
Record 3, Main entry term, French
- zonalité des processus de l'altération
1, record 3, French, zonalit%C3%A9%20des%20processus%20de%20l%27alt%C3%A9ration
correct, feminine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
- zonalité des altérations 2, record 3, French, zonalit%C3%A9%20des%20alt%C3%A9rations
correct, feminine noun
- zonalité d'altération 3, record 3, French, zonalit%C3%A9%20d%27alt%C3%A9ration
correct, feminine noun
- zonalité de l'altération 4, record 3, French, zonalit%C3%A9%20de%20l%27alt%C3%A9ration
correct, feminine noun
Record 3, Textual support, French
Record number: 3, Textual support number: 1 CONT
Autour d'un même dépôt, on peut observer souvent une zonalité de l'altération, c'est-à-dire des «halos» successifs, de composition minéralogique et chimique différentes. Sous certaines conditions, [...] ces halos d'altération peuvent constituer d'excellents guides vers la minéralisation. 2, record 3, French, - zonalit%C3%A9%20des%20processus%20de%20l%27alt%C3%A9ration
Record number: 3, Textual support number: 2 CONT
[...] la zonalité de l'altération est parfois déformée par les directions structurales des roches encaissantes. 5, record 3, French, - zonalit%C3%A9%20des%20processus%20de%20l%27alt%C3%A9ration
Record 3, Spanish
Record 3, Textual support, Spanish
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