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GRANOPHYRIC [6 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2017-05-12

English

Subject field(s)
  • Petrography
  • Mineralogy
DEF

The texture of an igneous rock resulting from the intergrowth of quartz and feldspar crystals which presents on flat surfaces the appearance of Hebrew, cuneiform, runic, or hieroglyphic writing.

OBS

A small-scale graphic texture is more specifically called a micrographic or granophyric texture.

French

Domaine(s)
  • Pétrographie
  • Minéralogie
DEF

[...] texture évoquant une écriture cunéiforme et résultant de l'intercroissance de quartz et de feldspaths alcalins.

CONT

[Les] structures graphiques [...] sont extrêmement fréquentes dans les minerais. [...] Ces structures se forment quelquefois par exsolution, mais plus fréquemment par d'autres processus [dont] le remplacement orienté, par exemple pour certaines associations chalcocite-bornite [...]; le dépôt simultané au point eutectique, par exemple pour certaines associations chalcopyrite-bornite; cette dernière association pouvant aussi se former à partir d'un gel mélangé.

CONT

[...] une structure peut être observable à l'œil nu si les grains minéraux sont gros, par exemple une structure graphique.

Spanish

Save record 1

Record 2 2012-01-30

English

Subject field(s)
  • Petrography
DEF

Applied to a fine-scale intergrowth of quartz and either alkali feldspar or plagioclase found as interstitial, late-stage products in the groundmass of granites.

OBS

It is similar to graphic and micrographic but differs from these textures in that the intergrowth of quartz and feldspar is more irregular.

OBS

When developed on a microscopic scale, graphic texture is termed granophyric texture.

French

Domaine(s)
  • Pétrographie
DEF

Se dit d'une structure micrographique.

Spanish

Save record 2

Record 3 2010-12-20

English

Subject field(s)
  • Mineralogy
DEF

The growing together of crystals from two or more minerals.

CONT

[The] presence of granophyric quartz-feldspar intergrowths within a network of coarser grained quartz-feldspar-mica pegmatite [is observed].

OBS

intergrowth: term used at Natural Resources Canada - Earth Sciences Sector.

PHR

Microscopic intergrowth.

French

Domaine(s)
  • Minéralogie
DEF

[Interpénétration] plus ou moins géométrique de cristaux de deux minéraux différents provoqué par une cristallisation simultanée.

CONT

[On observe la] présence d'enchevêtrements granophyriques de quartz-feldspath, au sein d'un réseau de pegmatite à quartz-feldspath-mica à grain plus grossier.

OBS

enchevêtrement : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

PHR

Enchevêtrement microscopique, radial.

Spanish

Save record 3

Record 4 2010-12-17

English

Subject field(s)
  • Geophysics
CONT

Sudden or rapid loss of aqueous fluids from granitic melts can cause undercooling(or quenching) due to the rapid decrease in fluid pressure, resulting in the formation of aplitic, prophyritic, and micrographic or granophyric textures...

OBS

quenching; rapid cooling: terms used at Natural Resources Canada - Earth Sciences Sector.

French

Domaine(s)
  • Géophysique
CONT

La perte soudaine ou rapide de fluides aqueux par les magmas granitiques, en entraînant une diminution rapide de la pression des fluides, peut produire des conditions de surfusion (ou un refroidissement rapide), ce qui peut permettre la formation de textures aplitiques, porphyriques et micrographiques ou granophyriques [ ...]

OBS

refroidissement rapide : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

Save record 4

Record 5 2003-07-22

English

Subject field(s)
  • Petrography
DEF

A texture in igneous rocks characterized by the irregular intergrowth of blebs, patches, and threads of quartz in a base of feldspar.

OBS

When developed on a microscopic scale, graphic texture is termed granophyric texture.

French

Domaine(s)
  • Pétrographie

Spanish

Save record 5

Record 6 1999-09-16

English

Subject field(s)
  • Petrography
  • Mineralogy
DEF

The rock texture produced by the intergrowth of two different minerals.

OBS

Pegmatitic, granophyric, poikilitic, ophitic, and basiophitic textures are included under this term.

French

Domaine(s)
  • Pétrographie
  • Minéralogie

Spanish

Save record 6

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