20.10. Role of Geological Structures

Try these first

1. 1.

   What are the three types of faults discussed?

   Hint

   Recall the fault types covered in class.

2. 2.

   What kind of stress occurs during a normal fault?

   Hint

   Think about which type pulls rocks apart.

3. 3.

   Which type of fault extends the crust?

   • Normal Fault
   • Reverse Fault
   • Strike-Slip Fault

   Hint

   Consider which fault type pulls apart the rocks.

4. 4.

   True or False: Reverse faults cause rocks to slide sideways.

   • True
   • False

   Hint

   Think about what happens in each fault type.

5. 5.

   Analyze how a city built on a reverse fault might prepare differently for an earthquake than one on a strike-slip fault.

   Hint

   Consider the types of stresses each fault type produces.

6. 6.

   If geological studies show that a major fault line has not produced a significant quake in decades, what implications does this have for cities nearby?

   Hint

   Remember the concept of seismic gaps and strain accumulation.