TERMIUM Plus®

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

FRAGIPAN [3 records]

Record 1 1980-06-12

English

Subject field(s)
  • Soil Science
OBS

A natural subsurface horizon having a higher bulk density than the solum above; seemingly cemented when dry, but showing moderate to weak brittleness when moist. The layer is low in organic matter, mottled, and slowly or very slowly permeable to water; it usually has some polygon-shaped bleached cracks. It is found in profiles of either cultivated or virgin soils but not in calcareous material.

French

Domaine(s)
  • Science du sol
OBS

Horizon naturel sous-jacent dont la densité apparente est plus élevée que celle du solum qui le recouvre; d'aspect cimenté à l'état sec, mais modérément à légèrement fragile à l'état humide. Possède une faible teneur en matière organique, présente des marbrures et n'est que peu ou très peu perméable à l'eau; présente généralement des fissures décolorées de forme polygonale. On le rencontre dans des profils de sols cultivés ou vierges mais pas dans les sols calcaires.

Spanish

Save record 1

Record 2 1978-10-18

English

Subject field(s)
  • Soil Science
DEF

A dense, natural subsurface layer of soil whose hardness and relatively slow permeability to water are chiefly due to extreme density or compactness rather than to high clay content (as claypan) or to cementation (as in hardpan). It appears indurated when dry, but shows a moderate to weak brittleness when moist; it contains much silt and sand, but little clay and organic matter.

French

Domaine(s)
  • Science du sol
DEF

Horizon très tassé.

DEF

(...) horizons à faible porosité, forte cohésion et densité élevée susceptibles de se rompre en éclats.

OBS

La première définition a été fournie par l'Ecole nationale supérieure agronomique de Rennes (77 04).

Spanish

Save record 2

Record 3 1976-06-19

English

Subject field(s)
  • Geology

French

Domaine(s)
  • Géologie
OBS

Dictionnaire des sols, Plaisance et Cailleux, p. 387

Spanish

Save record 3

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