Sediments are defined as solid fragments of inorganic or organic material. The bulk of sediment is formed from the weathering of rock, wherein the rock is broken into smaller and smaller pieces by a variety of chemical and mechanical processes, including acidic rainfall, freeze/thaw cycles, and the actions of organisms.
The mantle, an area 670 to 2900 kilometers below the Earth's surface, is under the most pressure because it has the highest temperature and biggest pressures
