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Understanding Erosion and Deposition Processes

Learn about erosion, the movement of rock particles, and deposition, the settling of sediment, caused by water, wind, and ice agents. Explore how erosion shapes our landscape and the impact of erosion and weathering on the Earth's surface.

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Understanding Erosion and Deposition Processes

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  1. Erosion

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

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

  4. Erosion • Erosion is the movement of rock particles #22

  5. Erosion • Erosion transports weathered rock material #23

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

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

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

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

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

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

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

  13. Gravity’s Effect On Erosion and Deposition

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

  15. Waves erode the shoreline #27

  16. #28 What are the three major ways in which erosion moved sediment? • water • wind • ice 

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

  18. D E L T A

  19. 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

  20. 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

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

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

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

  24. Erosion

  25. Review • How are weathering and erosion similar?

  26. Review • How are weathering and erosion different?

  27. Review • What is erosions?

  28. Review • What is weathering?

  29. Review • What are the two main types of weathering?

  30. Review • Three agents of erosion?

  31. Review • Erosion moves S_______________?

  32. Review • What erosion agent moves the largest rocks?

  33. Review • What erosion agent moves the most sediment?

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