You can erode the top of the uplifted block in each movie, as happens when a block is faulted and then eroded.
Is part of the offset left lateral or right lateral? How does the distance between the two parts of the green layer within the eroded block compare to the corresponding distance in the other block? Which direction does the green layer appear to be offset in the eroded block?
On the worksheet (Ft-7), describe how you could distinguish an oblique fault from a fault that was only strike-slip (no up and down offset).
Rotate block 
Erode block
Rotate
block
Erode block
