Question

Horizontal offsets in streams occur at what kind of fault?

Option 1: Strike-slip fault
Option 2: Thrust fault
Option 3: Normal fault
Option 4: Reverse fault

Answer 1

Horizontal offsets in streams occur at a 1. strike-slip fault, where horizontal movement is the primary motion as opposed to vertical movements found in normal and reverse faults.

Step-by-step explanation:

Horizontal offsets in streams occur at a 1. strike-slip fault. A strike-slip fault is where the blocks of the Earth's crust on either side of the fault move horizontally past one another. This is in contrast to dip-slip faults, such as normal faults and reverse faults (including thrust faults), where vertical movement is the primary motion, with either the hanging wall moving down or up, respectively.

In the case of thrust faults, which are a special type of reverse fault with a shallow dip angle, horizontal movement can also occur, but this is due to a component of the dip-slip motion rather than the primary strike-slip motion.