Label Footwall Fault Hanging Wall

The keweenaw fault is a thrust fault the name we give to prominent reverse faults.

Label footwall fault hanging wall.

Comments are turned off. Identify the type of fault illustrated by each photo and describe the type of stress that produced it. Compression pushing together causes reverse faults. Draw a normal and reverse fault label the hanging wall and footwall for each also show how they move for each fault.

The hanging wall moves up relative to the foot wall. The line it makes on the earth s surface is the fault trace. If the hanging wall moved up relative to the footwall the movement was caused by compression. Its strike and its dip.

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. Any fault plane can be completely described with two measurements. Mainly because the names hanging wall and footwall were named by miners who weren t trying to be cute.

When the fault plane is vertical there is no hanging wall or footwall. Formed by compressional stress rocks are pushed towards each other. 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. 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.

Most faults broken places are essentially inclined planes like this. Quite often the ore that a miner wants to get to is sitting right on that inclined plane the ore is in the fault. 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. In a normal fault the hanging wall has moved down relative to the footwall.

Click the buttons along the bottom of the image to see another example of interpreting a fault. Sketch label and describe the concepts of dip strike hanging wall and footwall. Label the hanging wall block and the footwall block on each of the faults illustrated in figure 1. They are driven by significant tectonic events that affect large areas like continental collisions.

On each photo draw arrows showing the relative movement on each side of the fault.