The process whereby materials of the earth's crust are loosened, dissolved, or worn away and simultaneously moved from one place to another.
Process of deposition of sediments (loose, uncemented pieces of rock, mineral fragments, or biological materials). The sediments settle out of water or air into layers on a surface.
The structural forces affecting the deformation, uplift, and movement of the earth's crust.
Episodes during which gases, ash, and lava (molten rock) escape from vents in the earth's crust, accompanied by minor tremors.
Convergent tectonic plate boundaries in which one plate is moving downward.