If no movement has occurred on a fracture it is called a joint . If movement has occurred on a fracture it is called a fault . Dip-slip movement is movement of one block up or down the dip of the fault plane. A reverse fault is upward dip-slip movement of the upper block relative to the lower block. A thrust fault is a low-angle reverse fault.
Reverse faults are the result of compressional stress.
A normal is downward dip-slip movement of the upper block. Normal faults are the reult of tensional stress. A strike-slip fault is the horizontal movement of one block relative to the other. Any break in the sedimentary geologic record is an unconformity , A disconformity is a break in sedimentation with erosion with no deformation so that the upper beds are parallel to the lower. Here the Paleozoic sediments lie on top of the slightly tilted late Proterozoic sediments at the bottom right.