Normal Fault Hanging Wall Movement

The forces creating reverse faults are compressional pushing the sides together.

Normal fault hanging wall movement.

The hanging wall slides down relative to the footwall. The hanging wall moves up and over the footwall. Together normal and reverse faults are called dip slip faults because the movement on them occurs along the dip direction either down or up respectively. Normal faults are common.

The terms hanging wall and foot wall refer to the relative position of the plates after movement. They are caused by extensional tectonics. Dip slip movement occurs when the hanging wall moved predominantly up or down relative to the footwall. In a normal fault the hanging wall moves downwards relative to the foot wall.

Hanging wall movement determines the geometric classification of faulting. There are three or four primary fault types. In this type of fault the hanging wall and footwall are pushed together and the hanging wall moves upward along the fault relative to the footwall. In a normal fault the hanging wall moves downward relative to the footwall.

A fault trace is also the line commonly plotted on geologic maps to represent a fault. Other articles where normal fault is discussed. Faults showing vertical movement include tensional normal and compressional reverse faults. Faults are classified according to the direction of relative movement along the fault.

They are common at convergent boundaries. These are often found in intensely deformed. Normal dip slip faults are produced by vertical compression as earth s crust lengthens. An upthrown block between two normal faults dipping away from each other is a horst.

A dip slip fault in which the block above the fault has moved downward relative to the block. Normal faults and reverse faults are dip slip faults they experience vertical movement in line with the dip of the fault. Low angle normal faults with regional tectonic significance may be designated detachment faults. Thrust faults are reverse faults that dip less than 45.

Reverse dip slip faults result from horizontal compressional forces caused by a shortening or contraction of earth s crust. They are identified by the relative movement of the hanging wall and foot wall. Faults are subdivided according to the movement of the two blocks. Economic minerals often grow along faults and these terms come from where a miner would stand and where they would hang their lantern.

This is literally the reverse of a normal fault. We distinguish between dip slip and strike slip hanging wall movements. A downthrown block between two normal faults dipping towards each other is a graben. They bound many of the mountain ranges of the world and many of the rift valleys found along spreading margins.

If the motion was down the fault is called a normal fault if the movement was up the. Tensional faults are produced through tension extension or pulling apart of the crust causing the hanging wall to move down relative to the footwall.