Here's a breakdown:

* Faults are fractures in the Earth's crust where rocks have moved past each other.

* Strike-slip faults are characterized by horizontal movement. The rocks on either side of the fault move in opposite directions, parallel to the fault line.

There are two main types of strike-slip faults:

* Right-lateral strike-slip fault: The block on the opposite side of the fault moves to the right relative to the observer.

* Left-lateral strike-slip fault: The block on the opposite side of the fault moves to the left relative to the observer.

A famous example of a strike-slip fault is the San Andreas Fault in California, which is a right-lateral fault.