2.1. Crack Classification and Geological Mapping

Try these first

1. 1.

   What are the two types of basaltic lava discussed?

   Hint

   Think about the characteristics of lava surfaces.

2. 2.

   Why is it important to classify cracks in caves?

   Hint

   Consider safety and conservation issues.

3. 3.

   What is Tacheletic Basalt's primary challenge?

   • It's hard to excavate
   • It crumbles easily
   • It's very rare

   Hint

   Think about how rock behaves during excavation.

4. 4.

   True or False: All cracks in caves are equally dangerous.

   • True
   • False

   Hint

   Recall the classifications we discussed.

5. 5.

   Given a cave system with multiple crack types, how would you prioritize which cracks to reinforce first?

   Hint

   Refer to the crack classification system.

6. 6.

   Analyze the impact of weather on Tacheletic Basalt during excavation. How can you mitigate any negative effects?

   Hint

   What do you think wet conditions do to soft rocks?