Normal Fault Hanging Wall

Hanging wall is where the ore is eroding out of the rocks.

Normal fault hanging wall.

In a normal fault the hanging wall moves downward relative to the footwall. This sliding downward of normal faults creates rifts valleys and mountains. An upthrown block between two normal faults dipping away from each other is a horst. The hanging wall is to the left of the fault and the footwall to the right.

Extensional forces those that pull the plates apart and gravity are the forces that create normal faults. They are most common at divergent boundaries. Low angle normal faults with regional tectonic significance may be designated detachment faults. Normal dip slip faults are produced by vertical compression as earth s crust lengthens.

Normal faults occur in areas undergoing extension stretching. If the hanging wall drops relative to the footwall you have a normal fault. Normal fault a type of fault in which the hanging wall moves down relative to the footwall and the fault surface dips steeply commonly from 50 o to 90 o. Normal fault geology a type of fault in which the hanging wall moves down relative to the footwall and the fault surface dips steeply commonly from 50o t.

If you imagine undoing the motion of a normal fault you will undo the stretching and thus shorten the horizontal distance between two points on either side of the fault. Normal fault and a layer of wet homogeneous clay represents the hanging wall strata. The sloping surface of the footwall block is either planar or has a single concave upward or convex upward bend. Normal fault s are common.

Normal faults form when the hanging wall drops down in relation to the footwall. Normal fault an inclined fault in which the hanging wall appears to have slipped downward relative to the footwall common fault gravity fault inclined fault a geological fault in which one side is above the other based on wordnet 3 0 farlex clipart collection. They bound many of the mountain ranges of the world and many of the rift valleys found along spreading margins. A downthrown block between two normal faults dipping towards each other is a graben.

A normal fault will have a hanging wall and a footwall. Groups of normal faults can produce horst and graben topography or a series of relatively high and low standing fault blocks as seen in areas where the crust is rifting or being pulled apart by plate tectonic activity. Our models differ from those of cloos 1968 in that the rigid footwall block and horizontal base define the initial shape of the master normal fault. The term footwall is derived from miners finding mineral deposits where inactive faults have been filled in with mineral deposits at their feet.