What is the difference between folding and faulting?
Folding and faulting are both caused by stress in the Earth's crust exceeding the strength of the material. However there are differences in the confining stresses and or temperatures at which these two processes occur.
Folding tends to occur at small strain rates (the speed at which the material changes shape or is squashed is very small), at higher confining pressures and with higher temperatures at greater depths in the Earth, usually within the asthenosphere or mesosphere. All of these factors act to stop the formation of fractures within the material leading to ductile deformation which is why the rocks can fold rather than break.
Faulting occurs where strain rates are large and there are relatively low temperatures and confining pressures at shallower depths within the earth's lithosphere. These conditions allow fractures to propagate through the rock causing faulting
Folding and faulting in mountains occurs because of the movement of lithospheric plates as described in the theory of plate tectonics. Continent to continent collision compresses the crust and its sedimentary cover rocks, displacing and distorting them upwards (folding) and fracturing them (faulting). Folding and faulting can also occur in oceanic crust-continental crust collisions, in areas above subduction zones.
Folding and Faulting usually work together to form mountains. Faulting works by one plate shifting up and one plate submerging. Folding however works by both plates pushing against each other slowly folding over and over. Faulting and Folding and work together to make mountains by as one plate moves down the other up causes the plate going up to roll over or move on top of the other plate then as the bottom plate gets heat from the earths core it rises folding the plate on top again to bring it even higher. Hoped it helped you