Oct. 30

From GeoClasses

Contents 1 Topics from chapter 16 1.1 mass wasting, erosion, weathering 1.2 chemical weathering 1.3 physical weathering 1.4 soils 1.5 mass wasting

Topics from chapter 16

mass wasting, erosion, weathering

• what is it?
• what controls weathering:
  • parent rock, climate, soil, exposure
  • see table 16.1

chemical weathering

• role of CO2
  • feldspar to kaolinite
  • solubility, rate of dissolution, stability of minerals
    • see table 16.2
• role of O2
  • Fe silicates to Fe oxides

physical weathering

• breaking rocks
  • joints
  • bacteria, algae, tree roots
  • frost wedging
  • exfoliation

soils

• humus
• soil profile
• soil types (see table 16.3)
  • paleosols

mass wasting

• unconsolidated material
  • angle of repose
  • liquefaction
    • see fig. 16.13
  • triggers
  • classification (see fig. 16.17)
• rock falls
• see figs. 16.27 and 16.28
• man-made landslides