Does Tension stress creates folded mountains compression stress creates fault-block mountains and the third type of mountain is volcanic?

Answer 1

First understand that in GEOLOGY there can be no such thing as a "tension stress". Gravity ensures that all things are in compression. The only change is in the direction of maximum stress.

When gravity (downwards) is the direction of maximum stress and one or other of the horizontal stresses decays slightly, fault block mountains form.

When gravity (downwards) becomes the lowest stress, reverse faults (thrusts) and fold mountains are formed.

When a hydraulic fluid (magma) penetrates a rheologically solid medium this will crack the medium an rise towards the surface. If the magma contains gas this will fizz and cause a volcano.- Is the Answer True or False?-Olivia

Answer 2

Yes, tension stress can lead to the formation of folded mountains through the process of folding. Compression stress can create fault-block mountains through the movement of large blocks of crust along faults. Volcanic mountains form when magma rises from the Earth's mantle, leading to volcanic eruptions and the accumulation of lava and volcanic materials.