PNG 550
Reactive Transport in the Subsurface

Lesson 9: Chemical Weathering


In this unit we use a chemical weathering example to illustrate 1) how physical processes and geochemical processes are coupled, and 2) how to set up physical and geochemical processes in a 1D column in Crunchflow. In essence the set up is a combination of mineral dissolution and precipitation discussed in lesson 2 and physical processes discussed in lesson 6. Please review these two lessons if necessary.

Learning Outcomes

By the end of this lesson, you should be able to:

  • Understand the importance of chemical weathering;
  • Understand the fundamental principles and key parameters that govern chemical weathering and reactive transport process coupling in general;
  • Set up simulations in Crunchflow with flow, solute transport, and mineral dissolution and precipitation reaction.