TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

PARENT ROCK [3 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2010-12-16

English

Subject field(s)
  • Petrography
DEF

A rock from which fragments have been derived which form a later, usually sedimentary rock.

CONT

Eluvial placers ... are formed upon hill slopes from minerals released from a nearby source rock.

OBS

source rock; bedrock source: terms used at Natural Resources Canada - Earth Sciences Sector.

French

Domaine(s)
  • Pétrographie
DEF

Roche qui, par érosion mécanique, a fourni les éléments détritiques d'un sédiment.

CONT

Par soulèvement, exposition à l'air libre et altération de ce protolite, les concentrations [...] de substances utiles augmentent jusqu'à présenter une teneur rentable ou améliorée dans les gîtes résiduels sus-jacents ou adjacents aux roches mères.

OBS

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

Spanish

Campo(s) temático(s)
  • Petrografía
Save record 1

Record 2 2008-09-09

English

Subject field(s)
  • Petrography
DEF

The original, unmetamorphosed rock from which a given metamorphic rock is formed.

CONT

Metamorphic rocks are generally considered to have a parent rock, or protolith, which can be any rock type.

CONT

Residually enriched deposits are sedimentary concentrations of commodities achieved by in situ weathering of a suitable precursor rock.

OBS

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

French

Domaine(s)
  • Pétrographie
CONT

La minéralogie silicatée d'un skarn donné est, dans une large mesure, tributaire de la composition de son protolite [...] Les skarns formés à partir d'un protolite calcaire [...] renferment du grenat andradite en abondance [...] Les skarns formés à partir d'un protolite dolomitique [...] contiennent en abondance des minéraux magnésiens d'altération prograde [...]

OBS

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

Spanish

Save record 2

Record 3 2003-12-23

English

Subject field(s)
  • Soil Science
DEF

The rock mass from which a soil's parent material is derived.

OBS

parent material: The unconsolidated material, mineral or organic, from which the solum or true soil develops.

French

Domaine(s)
  • Science du sol
DEF

Matériau à partir duquel (ou dans lequel) se forme le sol et dont la décomposition [fournit] les éléments minéraux du profil.

CONT

[Les] roches mères sont massives (granite, calcaires cristallins), consolidées (grès, schistes) ou meubles (alluvions, loess, marnes, sables); calcaires ou non; acides (granite, grès siliceux), ou riches en bases (basaltes); perméables (sables) ou imperméables (marnes).

Spanish

Campo(s) temático(s)
  • Ciencia del suelo
DEF

Roca de la base de un perfil de suelo cuya alteración ha dado origen a ese suelo.

Save record 3

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