TERMIUM Plus®

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MATURE ROCK [3 records]

Record 1 2011-05-16

English

Subject field(s)
  • Geochemistry
DEF

A measure of the progress of a clastic sediment in the direction of chemical or mineralogic stability.

OBS

For example, a high ratio of quartz + cherts to feldspar + rock fragments indicates a highly mature sediment.

Key term(s)
  • index of maturity

French

Domaine(s)
  • Géochimie
CONT

On établit un «index de maturité» qui exprime la différence qui existe entre le dépôt final sédimenté et la roche primitive broyée.

Spanish

Save record 1

Record 2 2011-01-19

English

Subject field(s)
  • Geomorphology and Geomorphogeny
CONT

... the source rock should be within a late mature zone.

OBS

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

French

Domaine(s)
  • Géomorphologie et géomorphogénie
CONT

Dans cette zone mature, les pièges sont de nature stratigraphique et structurale; la majorité des gisements contiennent des pétroles lourds.

OBS

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

Spanish

Save record 2

Record 3 1997-09-23

English

Subject field(s)
  • Petrography
DEF

A sandstone containing abundant quartz, chert, and quartzite, less than 10% argillaceous matrix, and 10-25% feldspar (generally fresh and limpid), and characterized by an abundance of unstable materials in which the feldspar grains exceed the fine-grained rock fragments ...

OBS

It is less feldspathic and more mature than arkosic arenite. The rock is roughly equivalent to subarkose.

French

Domaine(s)
  • Pétrographie
OBS

feldsparénite : Mot-valise créé par le télescopage de «feldspath» et de «arénite».

Spanish

Save record 3

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