Weathering Processes

Figure 1. The influence of the interaction of temperature and rainfall on processes of physical and chemical weathering. Notice that as annual rainfall and temperature increases, chemical weathering dominates over physical weathering. On the contrary, notice that as the temperature lowers, physical weathering begins to dominate over chemical weathering. Image courtesy of UNL, 2005

Quiz

Question

Question 4a: What weathering processes dominate in Alabama‏?

To review this concept click on the link: Soil Genesis and Development Lesson 2  (& see Fig.1 above)

Looks Good! High temperature and especially moisture are critical for chemical weathering. chemical weathering generally occurs more quickly in warm and moist climatic regions.
Question

Question 4b: What weathering processes dominate in Nebraska‏?

To review this concept click on the link: Soil Genesis and Development Lesson 2  (& see Fig.1 above)

Looks Good! Temperature is ample for chemical weathering but moisture is not as ample as Alabama Also, frost action (physical weathering) will play a role in weathering since winters are cold.

Reflection

What weathering processes dominate in Alabama?

  1. Physical
  2. Chemical
  3. Biological
  4. Slight physical & moderate chemical
  5. Moderate physical & slight chemical

What weathering processes dominate in Nebraska?

  1. Physical
  2. Chemical
  3. Biological
  4. Slight physical & moderate chemical
  5. Moderate physical & slight chemical