Relative Motion Of Plates And Hanging Wall And Foot Wall

Right lateral or dextral.

Relative motion of plates and hanging wall and foot wall.

In a normal fault the hanging wall moves downward relative to the footwall. An upthrown block between two normal faults dipping away from each other is a horst. Normal faults form when the hanging wall drops down in relation to the footwall. All the stress and strain produced by moving plates builds up in the earth s rocky crust until it simply can t take it any more.

In a strike slip fault a the hanging wall moves down relative to the footwall b the hanging wall moves up relative to the footwall at the angle of 30 degrees or less c the hanging wall moves up relative to the footwall at an angle of 45 degrees or more d the fault blocks move horizontally in opposite directions. These faults place younger and or lower grade rocks on top of older and or higher grade rocks. Left lateral or sinistral. 2 reverse or thrust fault.

Splinters of the oceanic plate that are scraped off the upper part of a descending oceanic plate and welded onto the forward edge of the overriding continental plate is called. Every fault tilted from the vertical has a hanging wall and footwall. Occurs when the hanging wall moves down relative to the foot wall reverse fault. A downthrown block between two normal faults dipping towards each other is a graben.

Hanging wall moves down relative to foot wall. Extensional forces those that pull the plates apart and gravity are the forces that create normal faults. All at once crack the rock breaks and the two rocky blocks move in opposite directions along a more or less planar fracture surface called a fault. Strike slip fault where the block opposite of the one your e standing on moves to the right.

Low angle normal faults with regional tectonic significance may be designated detachment faults. We classify faults by how the two rocky blocks on either side of a fault move relative to each other. Faults are made up of a footwall and hanging wall. To correctly identify a fault you must first figure out which block is the footwall and which is the hanging wall.

A dip slip fault in which the block above the fault has moved downward relative to the block below. This type of faulting occurs in response to extension. They are most common at divergent boundaries. A dip slip fault in which the upper block above the fault plane moves up and over the.

Up and down motion again but hanging wall moves up footwall moves down. Visualise the footwall on the left and the hanging wall on the right just as an example. Up and down motion so the footwall moves up and the hanging wall moves down.