Footwall Block And Hanging Wall Block

The two sides of a non vertical fault are called the hanging wall and footwall. Block below is called the footwall. Label the hanging wall block and the footwall block on each of the faults illustrated in figure 1.

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A downthrown block between two normal faults dipping towards each other is a graben.

Footwall block and hanging wall block.

The footwall is the block that is below the fault. On each photo draw arrows showing the relative movement on each side of the fault. An upthrown block between two normal faults dipping away from each other is a horst. Identify the type of fault illustrated by each photo and describe the type of stress that produced it.

Hanging wall block and footwall block the rock immediately above a fault surface is the hanging wall block and the one below is the footwall block. The hanging wall is the fault block that is above the fault. These names came from miners who excavated ore. Low angle normal faults with regional tectonic significance may be designated detachment faults.

By definition the hanging wall occurs above the fault and the. The dip of a fault plane is its angle of inclination measured from the horizontal. The fault strike is the direction of the line of intersection between the fault plane and earth s surface. In a normal fault the hanging wall moves downward relative to the footwall.

The hanging wall block has moved up in relation.

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