Erosion and Deposition PPT

Erosion

and

Deposition

Agents, Forces, and Results

What Caused This?

What is Erosion?

? Erosion ¨C moving of rock material from one place

to a new location

?Weathering has to happen before erosion. The

rocks have to be broken into smaller sediments

before they can be eroded away.

Weathering & Erosion Study Jams

AGENTS OF EROSION

? Wind

? Flowing water

? Waves

? Gravity

? Moving Ice (glaciers)

What Is Wind Erosion?

? Wind ¨C sediments that have been transported by

wind appear pitted (holes) and frosted (glazed)

¨C Effective in moving small, loose material

¨C Occurs in areas where there is not enough rainfall to

support vegetation

¨C Main effects:

Wind causes small particles to be lifted and moved away.

2. Suspended particles may impact on solid objects causing

erosion by abrasion (rubbing).

1.

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