Five difference between epeirogeny and orogeny?

Answer 1

1. Orogeny

is a mountain building process while epeirogeny

is a continent building process.2. In orogeny

crust is severely deformed into into folds while in epeirogeny

there may be simple deformation.

3. In orogeny

the rock masses move in tangential direction to the earth's surface while in epeirogeny

the rock masses move in radial or vertical direction to the earth's surface.

Answer 2

1. Epeirogeny is the vertical movement of large blocks of the Earth's crust without significant folding or faulting, while orogeny involves the folding, faulting, and thickening of the crust to form mountain ranges.
2. Epeirogeny is often associated with broad, regional uplift or subsidence of large landmasses, while orogeny is more localized and results in the creation of linear mountain belts.
3. Epeirogeny typically operates over longer timescales and involves slow, gradual movements, whereas orogeny is often associated with more rapid and dramatic tectonic events.
4. Epeirogeny can create large-scale features like continental platforms or basins, while orogeny results in the formation of specific mountain ranges or mountain belts.
5. Epeirogeny is driven by forces like mantle convection or changes in the thickness of the lithosphere, while orogeny is primarily the result of the collision or convergence of tectonic plates.