Weathering and Erosion. Weathering The breakdown do the rocks into smaller pieces, by water, plants,...
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Transcript of Weathering and Erosion. Weathering The breakdown do the rocks into smaller pieces, by water, plants,...
![Page 1: Weathering and Erosion. Weathering The breakdown do the rocks into smaller pieces, by water, plants, ice, and wind. Weathering.](https://reader035.fdocuments.in/reader035/viewer/2022062222/5697c0231a28abf838cd3ee2/html5/thumbnails/1.jpg)
Weathering and Erosion
![Page 2: Weathering and Erosion. Weathering The breakdown do the rocks into smaller pieces, by water, plants, ice, and wind. Weathering.](https://reader035.fdocuments.in/reader035/viewer/2022062222/5697c0231a28abf838cd3ee2/html5/thumbnails/2.jpg)
![Page 3: Weathering and Erosion. Weathering The breakdown do the rocks into smaller pieces, by water, plants, ice, and wind. Weathering.](https://reader035.fdocuments.in/reader035/viewer/2022062222/5697c0231a28abf838cd3ee2/html5/thumbnails/3.jpg)
Weathering
• The breakdown do the rocks into smaller pieces, by water, plants, ice, and wind.
Weathering
![Page 4: Weathering and Erosion. Weathering The breakdown do the rocks into smaller pieces, by water, plants, ice, and wind. Weathering.](https://reader035.fdocuments.in/reader035/viewer/2022062222/5697c0231a28abf838cd3ee2/html5/thumbnails/4.jpg)
WeatheringIs the process by which rocks are broken down into smaller pieces by external conditions.
Types of Weathering Ice or frost wedging - temperature change Abrasion - friction and impact Plant roots and burrowing of animals Humans – building houses, roads, dig
tunnels, or blast into rock
![Page 5: Weathering and Erosion. Weathering The breakdown do the rocks into smaller pieces, by water, plants, ice, and wind. Weathering.](https://reader035.fdocuments.in/reader035/viewer/2022062222/5697c0231a28abf838cd3ee2/html5/thumbnails/5.jpg)
Ice or Frost Wedging
Ice or frost wedging is the freezing and thawing of water in cracks that causes rocks to bread apart or disintegrate in to smaller pieces.
![Page 6: Weathering and Erosion. Weathering The breakdown do the rocks into smaller pieces, by water, plants, ice, and wind. Weathering.](https://reader035.fdocuments.in/reader035/viewer/2022062222/5697c0231a28abf838cd3ee2/html5/thumbnails/6.jpg)
![Page 7: Weathering and Erosion. Weathering The breakdown do the rocks into smaller pieces, by water, plants, ice, and wind. Weathering.](https://reader035.fdocuments.in/reader035/viewer/2022062222/5697c0231a28abf838cd3ee2/html5/thumbnails/7.jpg)
The freezing and thawing cycle of water break the rocks into different size pieces and they are then deposits at the base of the mountain by gravity.
![Page 8: Weathering and Erosion. Weathering The breakdown do the rocks into smaller pieces, by water, plants, ice, and wind. Weathering.](https://reader035.fdocuments.in/reader035/viewer/2022062222/5697c0231a28abf838cd3ee2/html5/thumbnails/8.jpg)
Falling rocks hitting other rock is also a form of abrasion and repeated impact.
![Page 9: Weathering and Erosion. Weathering The breakdown do the rocks into smaller pieces, by water, plants, ice, and wind. Weathering.](https://reader035.fdocuments.in/reader035/viewer/2022062222/5697c0231a28abf838cd3ee2/html5/thumbnails/9.jpg)
Ice or Frost Wedging
When in the water in the ground freezes it can cause sidewalks and patios to lift up.
![Page 10: Weathering and Erosion. Weathering The breakdown do the rocks into smaller pieces, by water, plants, ice, and wind. Weathering.](https://reader035.fdocuments.in/reader035/viewer/2022062222/5697c0231a28abf838cd3ee2/html5/thumbnails/10.jpg)
Plant Roots
A plant’s small roots wedge themselves inside small cracks in a rock. As the plant grows the larger roots make the crack bigger and bigger, causing the rock to break apart.
![Page 11: Weathering and Erosion. Weathering The breakdown do the rocks into smaller pieces, by water, plants, ice, and wind. Weathering.](https://reader035.fdocuments.in/reader035/viewer/2022062222/5697c0231a28abf838cd3ee2/html5/thumbnails/11.jpg)
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Abrasion: Friction and Repeated Impact
Moving water can smooth and round the edges of rocks.
![Page 13: Weathering and Erosion. Weathering The breakdown do the rocks into smaller pieces, by water, plants, ice, and wind. Weathering.](https://reader035.fdocuments.in/reader035/viewer/2022062222/5697c0231a28abf838cd3ee2/html5/thumbnails/13.jpg)
Living Organisms
• Lichens that grow on rocks produce weak acids that chemically weather rock
![Page 14: Weathering and Erosion. Weathering The breakdown do the rocks into smaller pieces, by water, plants, ice, and wind. Weathering.](https://reader035.fdocuments.in/reader035/viewer/2022062222/5697c0231a28abf838cd3ee2/html5/thumbnails/14.jpg)
Burrowing of animalsalso help break down rock
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ErosionIs the movement of sediment
by wind, water, and glaciers and gravity.
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Water Erosion
• Rivers, streams, and runoff
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Water
• Water weathers rock by dissolving it
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Ice Erosion
• Glaciers
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Wind Erosion
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Mass Movements of land caused by ground water.
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Rock is Change by Weathering and
ErosionWeather
ing is the
process of
Breaking down
rock
ErosionIs the
process of
Movingrock