Question

Folding and Faulting are the result of which geological action?

Answer 1

The difference between folding and faulting is that folding is the pressure of converging plates causing the crust to fold and buckle, resulting in the creation of mountains and hills and faulting is where cracks in the earth's rock are created because of different movement of tectonic plates.

Crustal Deformation Processes: Folding and Faulting. This deformation is the result of forces that are strong enough to move ocean sediments to an eleveation many thousands meters above sea level. In previous lectures, we have discovered that this displacement of rock can be caused by tectonic plate movement and subduction, volcanic activity, and intrusive igneous activity. 

Deformation of rock involves changes in the shape and/or volume of these substances. Changes in shape and volume occur when stress and strain causes rock to buckle and fracture or crumple into folds. A fold can be defined as a bend in rock that is the response to compressional forces. Folds are most visible in rocks that contain layering. For plastic deformation of rock to occur a number of conditions must be met, including:

* The rock material must have the ability to deform under pressure and heat.
* The higher the temperature of the rock the more plastic it becomes.
* Pressure must not exceed the internal strength of the rock. If it does, fracturing occurs.
* Deformation must be applied slowly. 

A recumbent fold develops if the center of the fold moves from being once vertical to a horizontal position (Figure 10l-7). Recumbent folds are commonly found in the core of mountain ranges and indicate that compression and/or shear forces were stronger in one direction. Extreme stress and pressure can sometimes cause the rocks to shear along a plane of weakness creating a fault. We call the combination of a fault and a fold in a rock an overthrust fault.

Faults form in rocks when the stresses overcome the internal strength of the rock resulting in a fracture. A fault can be defined as the displacement of once connected blocks of rock along a fault plane. This can occur in any direction with the blocks moving away from each other. Faults occur from both tensional and compressional forces. Figure 10l-8 shows the location of some of the major faults located on the Earth.

Answer 2

Answer:

the movement of plates result in the building up of stresses within the plates and the continental rocks above. leading to folding and faulting