Fault Line Hanging Wall

The lewis overthrust is a geologic thrust fault structure of the rocky mountains found within the bordering national parks of glacier in montana united states and waterton lakes in alberta canada the structure was created due to the collision of tectonic plates about 170 million years ago that drove a several mile thick wedge of rock 50 mi 80 km eastwards causing it to overlie softer. If the motion was down the fault is called a normal fault if the movement was up the. Thrust faults are reverse faults that dip less than 45.

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The main components of a fault are 1 the fault plane 2 the fault trace 3 the hanging wall and 4 the footwall.

Fault line hanging wall.

Where the fault plane is sloping as with normal and reverse faults. We distinguish between dip slip and strike slip hanging wall movements. Reverse dip slip faults result from horizontal compressional forces caused by a shortening or contraction of earth s crust. The upper block or in other words the block above the fault plane is called hanging wall.

Fault plane is called the hanging wall or headwall. It is a flat surface that may be vertical or sloping. The block below the fault plane or in other words beneath the fault plane is called the footwall. The line it makes on the earth s surface is the fault trace.

The hanging wall occurs above the fault plane and the footwall occurs below it. Hanging wall and footwall. The block below is called the footwall. Thrust faults with a very low angle of dip and a very large total displacement are called overthrusts or detachments.

The fault strike is the direction of the line of intersection between the fault plane and earth s surface. Hanging wall movement determines the geometric classification of faulting. It is the inclination of the fault plane that is vertical. The two sides of a non vertical fault are known as the hanging wall and footwall.

This type of faulting occurs in response to extension. Note the small normal faults that displace the sandstone in the hanging wall and bend sole into the flatlying detachment the sandstone layers inbetween these small normal faults have rotated clockwise in this view as this faulting occurred. The fault plane is where the action is. When working a tabular ore body the miner stood with the footwall under his feet and with the hanging wall above him.

Dip slip movement occurs when the hanging wall moved predominantly up or down relative to the footwall. Occurs when the hanging wall moves down relative to the foot wall reverse fault. The hanging wall moves up and over the footwall. This terminology comes from mining.

A dip slip fault in which the block above the fault has moved downward relative to the block below. Hanging wall and footwall. A dip slip fault in which the upper block above the fault plane moves up and over the. Offset dispersal splays relay or tri shear termination.

These are often found in intensely deformed.

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