Label Footwall Fault Hanging Wall

Identify the type of fault illustrated by each photo and describe the type of stress that produced it.

Label footwall fault hanging wall.

The keweenaw fault is a thrust fault the name we give to prominent reverse faults. Any fault plane can be completely described with two measurements. Label the hanging wall block and the footwall block on each of the faults illustrated in figure 1. If the hanging wall moved up relative to the footwall the movement was caused by compression.

Its strike and its dip. In a normal fault the hanging wall has moved down relative to the footwall. Sketch label and describe the concepts of dip strike hanging wall and footwall. Tension stretching causes normal faults.

A detachment fault is a particular kind of normal fault that generally dips at a low angle. It is a flat surface that may be vertical or sloping. The hanging wall moves up relative to the foot wall. It separates rocks that were deep in the crust and ductile granite and gneiss from rocks of the upper crust sedimentary or volcanic that were brittle.

Mainly because the names hanging wall and footwall were named by miners who weren t trying to be cute. That s the hanging wall. Use four block diagrams to depict and describe the movement of a normal fault reverse fault left lateral strike slip fault and right lateral strike slip fault. Where the fault plane is sloping as with normal and reverse faults the upper side is the hanging wall and the lower side is the footwall.

Quite often the ore that a miner wants to get to is sitting right on that inclined plane the ore is in the fault. Most faults broken places are essentially inclined planes like this. Compression pushing together causes reverse faults. On each photo draw arrows showing the relative movement on each side of the fault.

Be sure to include which type of stress creates each fault and the plate tectonic setting in which the fault is most likely to be found. They are driven by significant tectonic events that affect large areas like continental collisions. When the fault plane is vertical there is no hanging wall or footwall. Click the buttons along the bottom of the image to see another example of interpreting a fault.

The line it makes on the earth s surface is the fault trace.