Problem 12.1

You are give a fault and a feature that has been displaced by the fault (here a dike) Determine the amount of slip on the fault.
  1. Determine of orientation (pitch) of the dike on the fault
    1. Plot the Fault as a plane
    2. Plot the Dike as a plane
    3. Find the intersection of the Dike and the Fault (mark it, we don't need the Trend and plunge)
    4. Rotate the Fault along a great circle
    5. Find the pitch of the dike on the fault by counting small circle along the great circle
  2. Draw both sides of the Dike on the Fault plane. This will be a projection. Use the same scale as the map
    1. Draw the Strike as a Horizontal line
    2. Mark the positions where the dike intersects the Surface.
    3. From the strike, measure and draw the Pitch of the Dike on the Fault for each point. Remember 0 is along the strike and 90 degress is directly down dip.
  3. If you are given the direction of slip (also a pitch angle), measure and draw that slip angle from the top of the dike
  4. Measure the distance along this slip direction to the top of the dike on the other side of fault

Problem 12.2

This is the same setup for 12.1, but the slip direction has changed. Draw the slip direction and measure the offset.