TERMIUM Plus®

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

TRANSLATIONAL SLIDE [2 records]

Record 1 2024-11-29

English

Subject field(s)
  • Erosion and Weathering (Geol.)
CONT

Translational slides. A translational or planar landslide is a downslope movement of material that occurs along a distinctive planar surface of weakness such as a fault, joint or bedding plane. Some of the largest and most damaging landslides on Earth are translational. These landslides occur at all scales and are not self-stabilising. They can be very rapid where discontinuities are steep.

Key term(s)
  • translational land slide
  • planar land slide

French

Domaine(s)
  • Érosion et corrosion (Géologie)
CONT

Dans un glissement circulaire, il y a un mouvement de rotation autour d'un axe central à la surface de rupture [...] La combinaison circulaire est plus commune; elle est une approximation du cas en spirale logarithmique minimisant l'énergie. Les glissements purement plans sont rares, la rupture a alors lieu suivant une ligne bien définie [...] Cependant, un glissement est souvent une combinaison des deux, répétée plusieurs fois dans les cas les plus complexes.

Spanish

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Record 2 2010-12-14

English

Subject field(s)
  • Soil Science
  • Soil Mechanics (Engineering)
CONT

Skin slides or flows are surficial debris movements on rocky slopes. They occur in the thin mineral soil veneer and the organic cover on relatively steep slopes (>35°).

CONT

On less steep tundra slopes, ice-rich permafrost is commonly insulated from thaw by stable, vegetated regolith. If sudden slippage of regolith occurs, exposure of the permafrost may lead to seasonal retrogression or failure. Alternatively, deeper penetration of thaw into the permafrost itself may induce rapid slippage in which the surface regolith is passively rafted away by failure of the thawed, ice-rich material below. ... Such rapid failure of the active layer are commonly referred to as skin flows.

OBS

skin flow; shallow translational slide: terms used at Natural Resources Canada - Earth Sciences Sector.

French

Domaine(s)
  • Science du sol
  • Mécanique des sols
CONT

Les glissements pelliculaires sont des décrochements superficiels affectant la mince couche de débris minéraux et la couche organique recouvrant les versants rocheux à pente raide (>35°).

OBS

écoulement superficiel : d'après Elsevier's Dictionary of Soil Mechanics; Technical terms used in soil mechanics and foundation engineering, International Society of Soil Mechanics and Foundation Engineering, Unesco pédologie.

OBS

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

Spanish

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