Erosion

Erosion – the process in which weathered particles are picked up and moved from one place to another.

Weathering and erosion are two very different processes that tend to act sequentially #21

Erosion Erosion is the movement of rock particles #22

Erosion Erosion transports weathered rock material #23

Erosion Water, wind and ice are agents of erosion #24

Erosion Water, wind and ice are agents of erosion #24

Deposition – the part of the erosion process in which sediment is placed in a new location

Deposition Deposition occurs where the agents (forces) of erosion lay down sediment #25

Deposition Dirt from mountain tops can be carried downhill to fill in valleys. This is called deposition #26

Deposition Example Dirt from mountain tops can be carried downhill to fill in valleys.

Deposition Example Area of the shoreline made up of material (usually sand) deposited by waves.

Gravity’s Effect On Erosion and Deposition

Mass Movement Movement of rock, soil, or snow, down a slope.

Waves erode the shoreline #27

#28 What are the three major ways in which erosion moved sediment? water wind ice 

Weathering and erosion wear down, and deposition fills in Earth’s surface #29 delta

D E L T A                                                       

Rivers can carve a valley through rock with a river flowing through it while a glacier can carve a valley where only rocks remain. When the glacier retreats or melts it leaves behind a valley without water #31

Rivers can carve a valley through rock with a river flowing through it while a glacier can carve a valley where only rocks remain. When the glacier retreats or melts it leaves behind a valley without water #31

If there is a deep valley without any water. How did it form? Possible? glacier

Wind, water, and gravity all combine to move dirt around  Wind, water, and gravity all combine to move dirt around. Of the three, water is responsible for moving the most amount of soil #32

The agent of erosion that carries the largest rocks is glaciers #30

                                                       Erosion

Review How are weathering and erosion similar?

Review How are weathering and erosion different?

Review What is erosions?

Review What is weathering?

Review What are the two main types of weathering?

Review Three agents of erosion?

Review Erosion moves S_______________?

Review What erosion agent moves the largest rocks?

Review What erosion agent moves the most sediment?