• Share
  • Email
  • Embed
  • Like
  • Save
  • Private Content
Earth science 5.3
 

Earth science 5.3

on

  • 484 views

 

Statistics

Views

Total Views
484
Views on SlideShare
484
Embed Views
0

Actions

Likes
0
Downloads
2
Comments
0

0 Embeds 0

No embeds

Accessibility

Upload Details

Uploaded via as Microsoft PowerPoint

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

    Earth science 5.3 Earth science 5.3 Presentation Transcript

    • 5.3 Mass Movements
    • Mass movement• The downslope movement of rock, regolith, and soil under the direct influence of gravity
    • rockfall• Occurs when rocks or rock fragments fall freely through the air; common on steep slopes
    • rockslide• Occurs when a mass of rock slides rapidly downslope along planes of weakness
    • slump• The downward slipping of a mass of rock or unconsolidated material moving as
    • mudflow• Quickly moving downhill flow of soil and rock fragments containing a large amount of water
    • earthflow• Slow- moving downslope movement of water- saturated, clay-rich sediment, most characteristics of humid regions
    • Creep• The slow downhill movement of soil and regolith
    • Key Concept• The transfer of rock and soil downslope due to gravity is called mass movements.
    • Key Concept• Among the factors that commonly trigger mass movements are saturation of surface materials with water, oversteepening of slopes, removal of vegetation, and earthquakes.
    • Key Concept• Geologists classify mass movements based on the kind of material that moves, how it moves, and the speed of movement.