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OVERSATURATED ROCK [4 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2011-01-05

English

Subject field(s)
  • Petrography
  • Geochemistry
DEF

A rock in which there is more than enough silica to satisfy the requirements of all the major silicate minerals, the free silica appearing as quartz in the rock.

Key term(s)
  • silica oversaturated rock

French

Domaine(s)
  • Pétrographie
  • Géochimie
CONT

Les roches sursaturées en silice sont celles qui contiennent du quartz ou présentent une texture vitreuse ou aphyrique avec un excès de silice.

Spanish

Save record 1

Record 2 2005-03-29

English

Subject field(s)
  • Mineralogy
DEF

A mineral, such as olivine or quartz, whose presence in an igneous rock indicates whether the rock is undersaturated or oversaturated.

CONT

Prospecting for diagnostic minerals, such as uranophane, erythrite, annabergite, dark purple fluorite, and for quartz-carbonate veins should complement the geophysical and geochemical surveys.

French

Domaine(s)
  • Minéralogie
CONT

La recherche de minéraux symptomatiques tels que l'uranophane, l'érythrite, l'annabergite et la fluorine violet sombre, et de filons de quartz-carbonates devrait compléter les levés géophysiques et géochimiques.

Spanish

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Record 3 2001-09-11

English

Subject field(s)
  • Petrography
DEF

An igneous rock containing quartz or its non-crystalline equivalent, e.g. granite.

French

Domaine(s)
  • Pétrographie
DEF

Roche magmatique à l'intérieur de laquelle le quartz est abondant.

OBS

La notion de saturation [...] prend en compte l'expression minéralogique de la richesse en SiO2. Ainsi une roche à quartz est dite «sursaturée» (sous-entendu en silice), une roche sans quartz ni feldspathoïdes (minéraux pauvres en Si) est «saturée», une roche à feldspathoïdes «sous-saturée».

Spanish

Save record 3

Record 4 1999-10-12

English

Subject field(s)
  • Petrography
DEF

[A rock] that contains neither excess silica nor unsaturated minerals.

OBS

saturated: ... applied to igneous rocks composed wholly of saturated minerals.

OBS

Is opposed to "oversaturated rock" and "undersaturated rock. "

French

Domaine(s)
  • Pétrographie
CONT

[...] une roche à quartz est dite «sursaturée» (sous-entendu en silice), une roche sans quartz ni feldspathoïdes (minéraux pauvres en Si) est «saturée», une roche à feldspathoïdes «sous-saturée».

Spanish

Save record 4

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