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

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

Erosion Transport  Deposition

Pressure Release

Frost Wedging

Abrasion

Organic Activity

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

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

Oxidation

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

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

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

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

Erosion

Landslides Mass Wasting Download movement of earth material caused by Gravity

Angle of Repose

Types of Landslide

Creep 1cm per year

Fall

Animations Animations for mass Wasting