- Sedimentary rocks are formed from sediments because of the following reasons:
- Igneous rocks and metamorphic rocks, decompose, disintegrate and wear down due to weathering.
- This material is carried away by running water (rivers), wind, glacier.
- The material is then deposited in low lying areas and is called sediments.
- When sediments are solidified into layers due to pressure from overlying sediments they are called sedimentary rocks.