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Weathering, Soil, Erosion

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Presentation on theme: "Weathering, Soil, Erosion"— Presentation transcript:

1 Weathering, Soil, Erosion
Chapter 10 Weathering, Soil, Erosion

2 Weathering Mechanical Weathering (Physical)
Pressure Release, Frost Wedging, Abrasion, Organic activity Chemical Weathering (removing or exchange of ions from the minerals) Dissolution, Hydrolysis, Oxidation,

3 Erosion Transport  Deposition

4 Pressure Release

5 Frost Wedging

6 Abrasion

7 Organic Activity

8 Dissolution Occurs when water removes ions from the mineral.
Example : Halite

9 Hydrolysis Is the exchange of H or OH from an ion in a mineral.

10 Oxidation

11 EXFOLIATION Chemical and Mechanical act together
Exfoliation large plates or shells split away like onion layers

12 Soil A thin layer of loose fragments , clay, sand overlies bedrock is called REGOLITH. SOIL is defined as the upper layers of regolith that support plants. Soil is a mixture of mineral grains, organic material

13 Soil Horizons Leaves, stems, and Flowers in the soil surface
Litter  decomposed  Humus

14 Soil Forming Factors Parent Rock Climate
Rates of plant growth and Decay Slope Aspect and Steepness Time Soil Transport

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17 Erosion

18 Landslides Mass Wasting Download movement of earth material caused by Gravity

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20 Angle of Repose

21 Types of Landslide

22 Creep 1cm per year

23

24 Fall

25 Animations Animations for mass Wasting


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