TERMIUM Plus®

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COURANT DEBRIS [1 record]

Record 1 2005-12-14

English

Subject field(s)
  • Soil Mechanics (Engineering)
  • Geology
DEF

A moving mass of rock fragments, soil, and mud, more than half the particles being larger than sand size.

CONT

Debris flows occur as overland and submarine mudflows, and as submarine deep-sea deposits. The deposits are poorly sorted and internally structureless; typically they have a pebbly, mudstone texture.

OBS

Slow debris flows may move less than 1 m per year; rapid ones reach 160 km per hour ...

French

Domaine(s)
  • Mécanique des sols
  • Géologie
CONT

Suivant la structure de la masse sédimentaire mise en mouvement et en fonction d'une pente décroissante on distingue : Les écroulements (rock-falls) [...], les glissements en masse (sliding) [...] les glissements accompagnés de déformations (slumping) [...], les courants en masse (mass flows) eux-mêmes subdivisés en : - courants de particules (grain flows) [...] [et] courants de débris (debris flow ou débrites), mélange très hétérométrique (des graviers aux blocs), unis par une matrice silteuse; leur sédimentation est conglomératique [...]

CONT

Dépôts issus de coulées de débris.

Spanish

Campo(s) temático(s)
  • Mecánica del suelo
  • Geología
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