Mass Erosion Erosion of the Earth due to the force of Gravity.

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Presentation transcript:

Mass Erosion Erosion of the Earth due to the force of Gravity

Video Clip 1)Watch the clip for the effects of erosion. 2) m?guidAssetId=D8AC0072-E189-4BEE-B422- E8ED32BA5443&blnFromSearch=1&productcod e=DSC - ?guidAssetId=D8AC0072-E189-4BEE-B422- E8ED32BA5443&blnFromSearch=1&produchttp://player.discoveryeducation.com/index.cf m?guidAssetId=D8AC0072-E189-4BEE-B422- E8ED32BA5443&blnFromSearch=1&productcod e=DSC - ?guidAssetId=D8AC0072-E189-4BEE-B422- E8ED32BA5443&blnFromSearch=1&produc

Discussion What tragedy did the clip describe? Why did this occur? What force created the landslide? How does this relate to erosion?

Graphic Organizer 1)Head the worksheet. 2) Fill in the worksheet while viewing the power point.

Mass Erosion …is the downhill movement of weathered materials …is caused by gravity … can occur quickly or slowly

Quick Mass Erosion Landslide : Sudden movement of rocks down a hill Rock can be loosened by volcanic activity, earthquakes, or heavy rain The pile of rocks at the bottom of a landslide is called a TALUS pile. t/environment-natural-disasters/landslides-and- more/landslides/ - Landslide Video Cliphttp://video.nationalgeographic.com/video/environmen t/environment-natural-disasters/landslides-and- more/landslides/ - Landslide Video Clip

Quick Mass Erosion Mudflow : Sudden flow of mud down a hill Occur in dry, mountainous regions after a heavy rainfall

Slow Mass Erosion Earthflow : Slow movement of soil, rocks, and plant life down a hill Caused by loose earth and extra moisture as well as gravity Part of a hill looks like it is sliding away

Slow Mass Erosion Creep : Slowest form Gravity pulling soil and rocks down a gentle slope Clues: Bent trees or telephone poles

Closure: What force causes mass erosion? State a type of mass erosion and describe its movement.

Which Type Is This? Creep

Which type of mass erosion buried this Indonesian temple? Mudflow

What do we call the pile of rock at the bottom of the hill? Talus Pile