Table of Contents
How do you identify different types of faults?
There are three different types of faults: Normal, Reverse, and Transcurrent (Strike-Slip).
- Normal faults form when the hanging wall drops down.
- Reverse faults form when the hanging wall moves up.
- Transcurrent or Strike-slip faults have walls that move sideways, not up or down.
How can you tell the three types of faults apart?
Three types of faults
- Strike-slip faults indicate rocks are sliding past each other horizontally, with little to no vertical movement.
- Normal faults create space.
- Reverse faults, also called thrust faults, slide one block of crust on top of another.
- For the latest information on earthquakes, visit:
How do you identify a fault in geology?
Earth scientists use the angle of the fault with respect to the surface (known as the dip) and the direction of slip along the fault to classify faults. Faults which move along the direction of the dip plane are dip-slip faults and described as either normal or reverse (thrust), depending on their motion.
What is a fault and what are the different types?
A fault is a fracture or zone of fractures between two blocks of rock. Faults which move horizontally are known as strike-slip faults and are classified as either right-lateral or left-lateral. Faults which show both dip-slip and strike-slip motion are known as oblique-slip faults.
Do you know the different types of faults?
Reverse fault. A dip-slip fault in which the upper block, above the fault plane, moves up and over the lower block. This type of faulting is common in areas of compression, When the dip angle is shallow, a reverse fault is often described as a thrust fault.
What kind of movement can occur along a fault?
Types of movement of crustal blocks that can occur along faults during an earthquake: 1. Where the crust is being pulled apart, normal faulting occurs, in which the overlying (hanging-wall) block moves down with respect to the lower (foot wall) block.
Which is an example of a reverse fault?
When the dip angle is shallow, a reverse fault is often described as a thrust fault. strike-slip fault – a fault on which the two blocks slide past one another. The San Andreas Fault is an example of a right lateral fault. A left-lateral strike-slip fault is one on which the displacement of the far block is to the left when viewed from either side.
Which is the best description of a dip slip fault?
A dip-slip fault in which the block above the fault has moved downward relative to the block below. This type of faulting occurs in response to extension. “Occurs when the “hanging wall” moves down relative to the “foot wall”” A dip-slip fault in which the upper block, above the fault plane, moves up and over the lower block.