//Mass Movemebt Flashcards

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1
Q

What allows mass movement to happen

A
  • Steep Slopes
  • Heavy rainfall =wet regolith
  • vegetation (roots bind soil)
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2
Q

Soil creep

A

-Downslope movement of soil under the influence of gravity
Results: poles, fences tilt, road cracks, bent trees
Effects: free-thaw, deforestation, human interference, animals
-Gentle slop/slow

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3
Q

Mudflows and Bogbursts

A
  • Bogbursts: If rainwater cannot drain/soak, peat can be heavy/ saturated
  • Mudflows: Saturated regolith rapidly flows down slopes
  • Gentle slope/slow-rapid
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4
Q

Landslide

A

-Landslide: anything that undercuts base of slope,
Effects: sea erosion, road building, quarrying
Very steep slope/very rapid

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5
Q

Influences of mass movement

A

Precipitation: water makes regolith heavier, letting it move easily and quickly down the slope
Gradient: steeper the slope, mass movement will occur more often

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