21.4. Fault Geometry and Terminology

Try these first

1. 1.

   What is the definition of 'fault strike'?

   Hint

   Think about the orientation of the fault relative to the ground.

2. 2.

   What does 'fault dip' measure?

   Hint

   Consider how steep a fault is.

3. 3.

   What does the term 'strike' refer to in geological faults?

   • A) The depth of the fault
   • B) The direction of the fault line
   • C) The age of the fault

   Hint

   Remember, it's about orientation, not depth or time.

4. 4.

   True or False: A fault zone can contain several closely spaced faults.

   • True
   • False

   Hint

   Think about how different faults can be in a small geographical area.

5. 5.

   Consider an earthquake that has a fault with a dip of 70 degrees. Describe how a structure built nearby might be impacted by the fault motion. Discuss what engineers should consider while designing the structure.

   Hint

   Focus on the relationship between steep angles and potential structural impacts.

6. 6.

   You are tasked with creating a map of a fault zone that intersects a city. What steps would you take to identify and record the characteristics of strike, dip, slip, and fault trace? Provide a methodology.

   Hint

   Think about how each measurement contributes to a comprehensive understanding of the zone.