class 8a: weathering and mass wasting. gradational processes 1.weathering 2.mass wasting...
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![Page 1: Class 8a: Weathering and mass wasting. Gradational processes 1.Weathering 2.Mass wasting 3.Erosion/deposition](https://reader035.vdocuments.site/reader035/viewer/2022062804/56649d495503460f94a250d1/html5/thumbnails/1.jpg)
Class 8a: Weathering and mass wasting
![Page 2: Class 8a: Weathering and mass wasting. Gradational processes 1.Weathering 2.Mass wasting 3.Erosion/deposition](https://reader035.vdocuments.site/reader035/viewer/2022062804/56649d495503460f94a250d1/html5/thumbnails/2.jpg)
Gradational processes
1. Weathering
2. Mass wasting
3. Erosion/deposition
![Page 3: Class 8a: Weathering and mass wasting. Gradational processes 1.Weathering 2.Mass wasting 3.Erosion/deposition](https://reader035.vdocuments.site/reader035/viewer/2022062804/56649d495503460f94a250d1/html5/thumbnails/3.jpg)
Weathering
• Weathering: breaking down of rock
![Page 4: Class 8a: Weathering and mass wasting. Gradational processes 1.Weathering 2.Mass wasting 3.Erosion/deposition](https://reader035.vdocuments.site/reader035/viewer/2022062804/56649d495503460f94a250d1/html5/thumbnails/4.jpg)
Weathering
• Speed of weathering?
• Bedrock:
• Climate:
• Vegetation:
• Steepness and orientation of slope
![Page 5: Class 8a: Weathering and mass wasting. Gradational processes 1.Weathering 2.Mass wasting 3.Erosion/deposition](https://reader035.vdocuments.site/reader035/viewer/2022062804/56649d495503460f94a250d1/html5/thumbnails/5.jpg)
Mechanical weathering
• Mechanical weathering breaks rocks into smaller pieces
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Chemical weathering
• Changes the chemistry of rocks
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Karst
![Page 8: Class 8a: Weathering and mass wasting. Gradational processes 1.Weathering 2.Mass wasting 3.Erosion/deposition](https://reader035.vdocuments.site/reader035/viewer/2022062804/56649d495503460f94a250d1/html5/thumbnails/8.jpg)
Karst: caves and caverns
![Page 9: Class 8a: Weathering and mass wasting. Gradational processes 1.Weathering 2.Mass wasting 3.Erosion/deposition](https://reader035.vdocuments.site/reader035/viewer/2022062804/56649d495503460f94a250d1/html5/thumbnails/9.jpg)
Karst: aboveground formations
![Page 10: Class 8a: Weathering and mass wasting. Gradational processes 1.Weathering 2.Mass wasting 3.Erosion/deposition](https://reader035.vdocuments.site/reader035/viewer/2022062804/56649d495503460f94a250d1/html5/thumbnails/10.jpg)
Mass wasting
• Downward movement of material due to gravity
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Mass wasting: creep
• Creep: nearly imperceptible movement
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Mass wasting: flow
• Flow: High moisture content
![Page 13: Class 8a: Weathering and mass wasting. Gradational processes 1.Weathering 2.Mass wasting 3.Erosion/deposition](https://reader035.vdocuments.site/reader035/viewer/2022062804/56649d495503460f94a250d1/html5/thumbnails/13.jpg)
Mass wasting: slide
• Slide: Sudden movement of non-saturated material
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Mass wasting: slide
• Three landscape consequences:
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Mass wasting: fall
• Fall: Rock goes airborne
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Erosion and deposition
• Erosion:
• Transport:
• Deposition:
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Aeolian processes
• Aeolian: related to wind
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Deflation and abrasion
• Deflation: removal and lifting of particles
• Abrasion: sandblasting or polishing
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Aeolian transport
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Aeolian deposition